U.S. patent application number 12/154892 was filed with the patent office on 2009-03-05 for decorative door frame attaching apparatus.
Invention is credited to Tamotsu Narimatsu, Gosei Okazaki.
Application Number | 20090060694 12/154892 |
Document ID | / |
Family ID | 39952453 |
Filed Date | 2009-03-05 |
United States Patent
Application |
20090060694 |
Kind Code |
A1 |
Okazaki; Gosei ; et
al. |
March 5, 2009 |
Decorative door frame attaching apparatus
Abstract
A decorative door frame attaching apparatus 1 comprises
conveying means 4 for conveying a door 2 in a laid state,
transferring means 6 for superimposing a decorative frame 3 on the
door 2, and nailing means 7 for nailing the decorative frame 3.
Adhesive is applied to a top surface of the door 2 at an adhesive
applying position A, and the door 2 is stopped at an attaching
position B. The transferring means 6 transfers the square-U-shaped
decorative frame 3 from a holding position E to the attaching
position B, and superimposes on the stopped door 2. The nailing
means 7 nails the decorative frame 3, which is thereby fixed to the
door 2. The door 2 is reversed at a reversing position C and
returned to the adhesive applying position A. A second decorative
frame 3 is attached to a new top surface of the reversed door 2.
The decorative frame 3 can be efficiently attached to the door
2.
Inventors: |
Okazaki; Gosei; (Matsuyama,
JP) ; Narimatsu; Tamotsu; (Matsuyama, JP) |
Correspondence
Address: |
FLYNN THIEL BOUTELL & TANIS, P.C.
2026 RAMBLING ROAD
KALAMAZOO
MI
49008-1631
US
|
Family ID: |
39952453 |
Appl. No.: |
12/154892 |
Filed: |
May 28, 2008 |
Current U.S.
Class: |
414/222.13 |
Current CPC
Class: |
E06B 3/7001 20130101;
B27M 3/18 20130101 |
Class at
Publication: |
414/222.13 |
International
Class: |
B65H 5/00 20060101
B65H005/00 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 29, 2007 |
JP |
222132/2007 |
Claims
1. A decorative door frame attaching apparatus for attaching a
decorative frame to a top surface of a door, comprising: conveying
means for conveying a door in a laid state; adhesive applying means
for applying an adhesive to a top surface of the door on the
conveying means; positioning means for stopping the door being
conveyed on the conveying means at a predetermined position;
transferring means for transferring the decorative frame and
superimposing the decorative frame on the top surface of the door
positioned by the positioning means; and nailing means for driving
a nail into the decorative frame and fixing the decorative frame to
the door.
2. The decorative door frame attaching apparatus according to claim
1, comprising reversing means for reversing the door to which the
decorative frame is fixed by the nailing means.
3. The decorative door frame attaching apparatus according to claim
2, wherein an adhesive applying position in which the adhesive
applying means is provided, an attaching position in which the
decorative frame is attached to the door, and a reversing position
in which the reversing means is provided are sequentially set on a
conveying path of the conveying means, and when the door is
reversed by the reversing means at the reversing position, the
conveying means conveys the door after being reversed to the
adhesive applying position again, and a second decorative frame is
attached to a top surface of the door after being reversed.
4. The decorative door frame attaching apparatus according to claim
1, comprising assembling means for coupling a plurality of
constituent members to assemble the decorative frame, and holding
the decorative frame in a predetermined holding position, wherein
the transferring means transfers the decorative frame from the
holding position to the attaching position.
5. The decorative door frame attaching apparatus according to claim
4, comprising a movable member movable in a direction orthogonal to
a conveying direction of the conveying means, and a driving
mechanism for moving the movable member in the direction orthogonal
to the conveying direction of the conveying means, the transferring
means being attached to one end side of the movable member and the
nailing means being attached to the other end side, wherein when
the transferring means is located in the holding position, the
nailing means is located in the attaching position, and when the
transferring means is located in the attaching position, the
nailing means is located in a holding position outside the
attaching position.
6. The decorative door frame attaching apparatus according to claim
2, wherein a rotation axis when the reversing means reverses the
door has an almost same height as a mount surface of the conveying
means, and is in parallel with the conveying direction of the
conveying means.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a decorative door frame
attaching apparatus for attaching a decorative frame to a door.
DESCRIPTION OF THE PRIOR ART
[0002] Conventionally, residential doors having decorative frames
of square U shape attached to both front and back surfaces have
been widely used in general households especially in Europe and the
United States. Conventionally, attaching operations of decorative
frames to such residential doors have been manually performed by
workers.
[0003] Although not the residential doors, there has been proposed
a method of manufacturing a wooden panel by attaching a plate
material to a surface of a wooden frame (for example, Japanese
Patent Laid-Open No. 8-39516). Also, an apparatus for reversing a
wooden panel has been proposed, for example, in Japanese Patent
Publication No. 7-102547.
[0004] As described above, conventionally, workers manually attach
decorative frames to residential doors. Thus, there is a problem
that working efficiency is low. Accordingly, an apparatus for
attaching decorative frames to a door has been conventionally
demanded.
SUMMARY OF THE INVENTION
[0005] In light of the circumstances described above, the present
invention according to claim 1 is a decorative door frame attaching
apparatus for attaching a decorative frame to a top surface of a
door, comprising conveying means for conveying a door in a laid
state; adhesive applying means for applying an adhesive to a top
surface of the door on the conveying means; positioning means for
stopping the door being conveyed on the conveying means at a
predetermined position; transferring means for transferring the
decorative frame and superimposing the decorative frame on the top
surface of the door positioned by the positioning means; and
nailing means for driving a nail into the decorative frame and
fixing the decorative frame to the door.
[0006] Because of the configuration, the attaching operation of the
decorative frames to the door can be efficiently performed in
comparison with the conventional case.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] FIG. 1 is a plan view illustrating one embodiment of the
present invention;
[0008] FIG. 2 illustrates processing steps by a decorative door
frame attaching apparatus 1 shown in FIG. 1;
[0009] FIG. 3 is an enlarged view of a main portion of FIG. 1;
[0010] FIG. 4 is an elevation view of FIG. 3;
[0011] FIG. 5 is an enlarged view of a main portion of FIG. 1;
[0012] FIG. 6 is a right side view of a main portion of FIG. 1;
[0013] FIG. 7 is an elevation view of a main portion of FIG. 1;
[0014] FIG. 8 is a cross-sectional view along VIII-VIII of FIG.
7;
[0015] FIG. 9 is a cross-sectional view along IX-IX of FIG. 7;
[0016] FIG. 10 is a left side view of FIG. 7; and
[0017] FIG. 11 is a right side view of FIG. 7.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] An embodiment of the present invention will be described
below with reference to the drawings. In FIG. 1, reference numeral
1 denotes a decorative door frame attaching apparatus, and the
decorative door frame attaching apparatus 1 attaches wooden
decorative frames 3 sequentially to both front and back surfaces of
a wooden door 2.
[0019] The decorative door frame attaching apparatus 1 comprises
conveying means 4 for horizontally supporting the door 2 in a laid
state and conveying the door 2 on a linear conveying path,
assembling means 5 for assembling the decorative frame 3 in a
square U shape, transferring means 6 for superimposing the
assembled decorative frame 3 on the door 2 which is being stopped,
nailing means 7 for driving nails from the decorative frame 3 at a
plurality of locations and fixing the decorative frame 3 to the
door 2, and reversing means 8 for reversing the door 2 upside down
on the conveying path of the conveying means 4. In the decorative
door frame attaching apparatus 1, an adhesive applying position A
where an adhesive is applied to the top surface of the door 2 in a
laid state, an attaching position B where the decorative frame 3
assembled in a square U shape is attached to the door 2, and a
reversing position C where the door 2 is reversed upside down are
set on the conveying path of the conveying means 4 from an upstream
side toward a downstream side. Also, an assembling position D where
the decorative frame 3 is assembled in a square U shape and a
holding position E where the assembled decorative frame 3 is held
until being transferred to the attaching position B are set so as
to be disposed in parallel with the conveying means 4. Furthermore,
a evacuating position F where the nailing means 7 is evacuated
while the decorative frame 3 is transferred is set on a side
opposite to the holding position E across the attaching position
B.
[0020] As shown in FIG. 2(a) and FIG. 2(b), the door 2 as a
processing object of the decorative door frame attaching apparatus
1 is composed of a square U-shaped frame member 2A and a body
portion 2B which can be opened and closed relative to the frame
member 2A via hinges therein, and is a vertically long rectangle as
a whole. On the other hand, as shown in FIG. 2(d) and FIG. 2(e),
the decorative frame 3 is composed of a right and left pair of
height direction members 3A and 3B, and a width direction member 3C
for coupling the height direction members 3A and 3B. Theses members
are coupled in a square U shape by the assembling means 5 at the
assembling position D, and then, are held at the holding position
E.
[0021] First, processing steps by the decorative door frame
attaching apparatus 1 according to the present embodiment will be
described with reference to FIG. 1 and FIG. 2. That is, when the
door 2 is supplied onto the conveying means 4 in a laid state, the
door 2 is sequentially conveyed to the downstream side by the
conveying means 4. The door 2 is temporarily stopped by first
positioning means 11 of the adhesive applying position A, and an
adhesive is applied to an upper side portion 2c of the top surface
(a surface directed upward) of the frame member 2A of the door 2 by
adhesive applying means 12 (FIG. 2(a)). Subsequently, an adhesive
is applied to both side portions 2a and 2b of the top surface of
the frame member 2A of the door 2 in the course of being conveyed
to the attaching position B by the conveying means 4 after being
released from the first positioning means 11. The door 2 is
conveyed to the attaching position B to be stopped and positioned
there by second positioning means 13, and the decorative frame 3 is
aligned and superimposed on the door 2 which is being stopped by
the transferring means 6. The frame member 2A of the door 2 and the
decorative frame 3 are thereby bonded to each other with the
adhesive, and a plurality of nailing machines 10 of the nailing
means 7 simultaneously drive nails into the decorative frame 3
superimposed on the frame member 2A of the door 2 as described
above (FIG. 2(b)).
[0022] The decorative frame 3 is thereby attached to the top
surface of the door 2, and then, the door 2 is conveyed to the
reversing position C in the adjacent downstream side by the
conveying means 4, and is reversed 180 degrees upside down by the
reversing means 8 (FIG. 2(c)). The other surface to which the
decorative frame 3 is not attached thereby becomes a new top
surface. The door 2 in this state is conveyed back to the adhesive
applying position A by the conveying means 4, and is stopped by
third positioning means 23. An adhesive is applied to an upper side
portion 2c of the new top surface of the frame member 2A of the
door 2 by the adhesive applying means 12 at the adhesive applying
position A, and an adhesive is applied to both side portions 2a and
2b of the frame member 2A of the door 2 in the course of being
conveyed to the attaching position B from the adhesive applying
position A by the conveying means 4. Subsequently, the door 2 is
conveyed again to the attaching position B, and is stopped and
positioned by the second positioning means 13. In this state, a
second decorative frame 3 is aligned and superimposed on the new
top surface of the door 2 by the transferring means 6, and then,
the nailing machines 10 of the nailing means 7 simultaneously drive
nails from the decorative frame 3.
[0023] Since the decorative frames 3 are thereby respectively
attached to the both front and back surfaces of the door 2, the
door 2 to which the attachment of the decorative frames 3 has been
completed is conveyed out to the downstream side through the
attaching position B and the reversing position C by the conveying
means 4.
[0024] Next, respective sections of the decorative door frame
attaching apparatus 1 will be described in sequence.
[0025] As shown in FIG. 1, the conveying means 4 comprises a first
roller conveyor 15 disposed at a fixed frame 14 of the adhesive
applying position A, a second roller conveyor 17 disposed at a
fixed frame 16 of the attaching position B, and a right and left
pair of third roller conveyors 21 attached to a fixed frame 18 of
the reversing position C.
[0026] The roller conveyors 15, 17 and 21 are independently rotated
forwardly and reversely by respectively working with an unshown
driving source. When the roller conveyors 15, 17 and 21 are
forwardly rotated, the door 2 is conveyed from the upstream side to
the downstream side in the order of the adhesive applying position
A, the attaching position B, and the reversing position C. On the
other hand, when the roller conveyors 15, 17 and 21 are reversely
rotated, the door 2 is conveyed back from the reversing position C
toward the adhesive applying position A.
[0027] Mount surfaces of the both roller conveyors 15 of the
adhesive applying position A and 17 of the attaching position B are
set to the same height. The third roller conveyors 21 of the
reversing position C are moved between upper horizontal positions
and lower tilt positions by working with right and left sets of air
cylinders 22 (see FIG. 7 and FIG. 9). When the door 2 is conveyed
into the reversing position C and before the door 2 passes through
the reversing position C, the third roller conveyors 21 are
supported in the upper horizontal positions by the right and left
air cylinders 22, and mount surfaces of the third roller conveyors
21 at this time are maintained at the same height as the mount
surfaces of the other respective roller conveyors 15 and 17 (see
FIG. 1, FIG. 7 and FIG. 9). On the other hand, when the door 2 is
reversed 180 degrees by the reversing means 8 after the door 2 is
conveyed into the reversing position C, the third roller conveyors
21 are lowered to the tilt positions by the respective right and
left sets of air cylinders 22 in advance (see FIG. 9). Accordingly,
the door 2 to be reversed by the reversing means 8 does not collide
with the third roller conveyors 21. The third roller conveyors 21
are raised to the horizontal positions by the respective sets of
air cylinders 22 after the reversing operation of the door 2 by the
reversing means 8, and accordingly, the reversed door 2 is
supported by the third roller conveyors 21 (FIG. 7 and FIG. 9).
[0028] Next, the adhesive applying means 12 of the adhesive
applying position A comprises a movable discharge section 12A for
discharging an adhesive while being moved in a direction orthogonal
to a conveying direction of the first roller conveyor 15, and a
pair of fixed discharge sections 12B disposed at both sides of a
top surface of the fixed frame 14.
[0029] The first positioning means 11 comprises a stopper 11A
provided so as to be capable of rising and setting in the
downstream side of the adhesive applying position A, and a right
and left set of positioning cylinders 11B for performing
positioning in a width direction by sandwiching both right and left
side portions of the door 2 therebetween. An unshown door sensor
for detecting the door 2 is disposed in a certain position of the
adhesive applying position A. When the first roller conveyor 15 is
forwardly rotated and the door 2 is detected by the door sensor,
the stopper 11A is raised and a lower end portion of the door 2
which is a proceeding end thereof is brought into abutment with the
stopper 11A. Subsequently, the both side portions of the door 2 are
sandwiched by the right and left positioning cylinders 11B, and the
door 2 is thereby positioned in the width direction and the
conveying direction at the adhesive applying position A.
[0030] Immediately after that, the movable discharge section 12A of
the adhesive applying means 12 discharges an adhesive while being
moved along the upper side portion 2c of the frame member 2A of the
door 2 by working with an unshown movable member, and the adhesive
is thereby applied to the upper side portion 2c.
[0031] When the application operation of the adhesive to the upper
side portion 2c of the door 2 by the movable discharge section 12A
is finished, the sandwiching state by the positioning cylinders 11B
is released and the stopper 11A is lowered down. The door 2 is
conveyed to the attaching position B by the first roller conveyor
15 being forwardly rotated at this time. Since an adhesive is
discharged from the fixed discharge sections 12B for a
predetermined amount of time after the stopper 11A is lowered down,
the adhesive is applied to the both side portions 2a and 2b of the
frame member 2A of the door 2 in the course of being moved from the
adhesive applying position A to the attaching position B (see FIG.
2(a)).
[0032] Next, the second positioning means 13 of the attaching
position B comprises a stopper 13A capable of rising and setting,
and a right and left set of positioning cylinders 13B for
performing positioning by sandwiching the both sides of the door 2
therebetween, like the first positioning means 11.
[0033] The second roller conveyor 17 of the attaching position B is
forwardly rotated when the door 2 is conveyed thereinto from the
adhesive applying position A. At this time, the stopper 13A of the
second positioning means 13 protrudes higher than the second roller
conveyor 17. Therefore, when the door 2 is conveyed into the
attaching position B, the lower end portion of the door 2 is
brought into abutment with the stopper 13A and the door 2 is
thereby stopped. Subsequently, the door 2 is sandwiched by the
right and left positioning cylinders 13B. The door 2 is thereby
positioned in the width direction and the conveying direction at
the attaching position B, and thereafter, the second roller
conveyor 17 is stopped.
[0034] In the state in which the door 2 is positioned at the
attaching position B as described above, the decorative frame 3 is
transferred from the holding position E to the attaching position B
and is aligned and superimposed on the door 2 by the transferring
means 6, and then, the nailing means 7 drives nails into the
decorative frame 3.
[0035] In the upstream side of the adhesive applying position A, a
stopper 23A capable of rising and setting from a conveying surface
of the first roller conveyor 15 is provided as the third
positioning means 23, so as to stop the door 2 being conveyed back
on the first roller conveyor 15 at the adhesive applying position
A.
[0036] Next, as shown in FIG. 1, FIG. 3 and FIG. 4, the assembling
means 5 for assembling the decorative frame 3 comprises magazines
24A and 24B for retaining the right and left height direction
members 3A and 3B, which constitute the decorative frame 3,
respectively in a laminated state, a magazine 24C for retaining the
width direction members 3C in a laminated state, clamp mechanisms
25A and 25B for respectively take out the height direction members
3A and 3B layer by layer in synchronization with each other from
respective bottoms of the magazines 24A and 24B, a clamp mechanism
25C for take out the width direction members 3C layer by layer from
a bottom of the magazine 24C, a right and left pair of supporting
sections 26 disposed adjacent to the magazine 24C, and a conveying
belt 28 for pushing the decorative frame 3 after being assembled
from the assembling position D onto a supporting member 27 of the
holding position E.
[0037] The conveying belt 28 is disposed in a range from a position
of the both supporting sections 26 through below the magazine 24C
of the width direction members 3C to the holding position E. A pair
of supporting rails 31 for supporting the width direction member 3C
is disposed along the conveying belt 28. A right and left pair of
guiding members 32 is also disposed in both side portions from one
end side of the assembling position D to the holding position E.
The guiding members 32 can support end portions of the height
direction members 3A and 3B when the both members 3A and 3B are
took out and lowered from the magazines 24A and 24B by the clamp
mechanisms 25A and 25B. Also, when the decorative frame 3 after
being assembled is pushed from the assembling position D to the
holding position E, the both height direction members 3A and 3B are
supported by the guiding members 32, which guide the movement
thereof as well.
[0038] L-shaped positioning members 26A are attached facing each
other to top surfaces of the supporting sections 26. The respective
members 3A to 3C took out from the respective magazines 24A, 24B
and 24C are positioned by the positioning members 26A.
[0039] That is, first, the clamp mechanism 25C is raised a certain
amount, and the lowest width direction member 3C in the magazine
24C is thereby grasped and took out by the clamp mechanism 25C.
After that, the clamp mechanism 25C is moved forward to a position
of the positioning members 26A by a movable member 33. 45-degree
corner portions which are both ends of the width direction member
3C are thereby positioned in the both positioning members 26A (FIG.
1 and FIG. 3). Subsequently, the clamp mechanisms 25A and 25B are
raised a certain amount. The lowest height direction members 3A and
3B in the magazines 24A and 24B are thereby grasped and took out by
the clamp mechanisms 25A and 25B, and then, the entire clamp
mechanisms 25A and 25B are moved forward toward the positioning
members 26A by a movable member 34. Respective 45-degree corner
portions of the both height direction members 3A and 3B are thereby
inserted to the both positioning members 26A, and are made to abut
the 45-degree corner portions of the both end portions of the width
direction member 3C (see FIG. 2(d) and FIG. 2(e)). In the state in
which the 45-degree corner portions of the respective adjacent
members 3A to 3C are made to abut each other, an unshown nailing
machine drives nails at two locations over the 45-degree corner
portions of the respective adjacent members 3A to 3C (see FIG.
2(e)). Since the assembling of the decorative frame 3 of square U
shape is thereby completed, the respective clamp mechanisms 25A,
25B and 25C are lowered a certain amount after releasing the
grasping state of the respective members 3A to 3C, and are returned
to positions below the respective magazines 24A to 24C by the
movable members 33 and 34.
[0040] The decorative frame 3 after being assembled is supported by
the supporting sections 26, the guiding members 32, and the
supporting rails 31, and also, the width direction member 3C of the
decorative frame 3 is mounted on the conveying belt 28 which is
being stopped.
[0041] When the conveying belt 28 travels a predetermined amount in
a forward rotation direction from this state by an unshown motor,
engagement claws 28A attached to the conveying belt 28 are brought
into abutment with the width direction member 3C of the decorative
frame 3 to push the width direction member 3C toward the holding
position E. Accordingly, the entire decorative frame 3 is guided by
the both guiding members 32 and is pushed from the assembling
position D onto the supporting member 27 of the holding position E
by the conveying belt 28. Subsequently, the conveying belt 28 is
reversely rotated a certain amount by the unshown motor, and thus,
the engagement claws 28A are returned to positions outward from the
positioning members 26A. The decorative frame 3 of square U shape
after being assembled is held on the supporting member 27 of the
holding position E until being transferred by the transferring
means 6.
[0042] The assembling means 5 of the present embodiment couples the
respective members 3A to 3C to assemble the decorative frame 3 of
square U shape at the assembling position D, and then, holds the
decorative frame 3 at the holding position E as described
above.
[0043] As the assembling means 5, other components than the
supporting member 27 of the holding position E may be omitted. That
is, in the case, the decorative frame 3 of square U shape assembled
in advance in another place may be held on the supporting member 27
of the holding position E.
[0044] Next, the transferring means 6 and the nailing means 7 will
be described with reference to FIG. 4.about.FIG. 6. A supporting
frame 35 is horizontally disposed in a direction orthogonal to the
conveying direction of the conveying means 4 above the both holding
positions E and F which are provided by sandwiching the attaching
position B therebetween. A rectangular movable frame 36 is mounted
on the supporting frame 35. The movable frame 36 is moved along a
longitudinal direction of the supporting frame 35 by working with a
driving mechanism 37. The driving mechanism 37 is configured to
forwardly and reversely rotate a timing belt 39B suspended along a
moving path of the movable frame 36 of the supporting frame 35 via
a timing belt 39A by a motor 38 as a driving source, and is coupled
to a coupling section 36A of the movable frame 36. When the motor
38 is forwardly and reversely rotated, the movable frame 36 is
thereby moved back and forth along the longitudinal direction of
the supporting frame 35.
[0045] The transferring means 6 is attached to one end (the holding
position E) side of the Longitudinal direction of the movable frame
36, and the nailing means 7 is attached to the other end (the
holding position F) side. When the movable frame 36 is moved back
and forth a predetermined amount along the supporting frame 35 by
the driving mechanism 37, the transferring means 6 and the nailing
means 7 are moved the same distance in synchronization with each
other in the direction orthogonal to the conveying means 4. That
is, when the transferring means 6 is moved from the holding
position E to the attaching position B via the movable frame 36 by
the driving mechanism 37 from the state in which the transferring
means 6 is located in the holding position E and the nailing means
7 is located in the attaching position B, the nailing means 7 is
moved from the attaching position B to the holding position F. On
the other hand, when the nailing means 7 is moved from the holding
position F to the attaching position B via the movable frame 36 by
the driving mechanism 37, the transferring means 6 is moved from
the attaching position B to the holding position E.
[0046] The transferring means 6 comprises a frame member 44
liftably supported via a lifting mechanism 43 by the movable frame
36, and four clamp members 45 disposed on the frame member 44. The
lifting mechanism 43 comprises four guiding members 43A coupled to
the frame member 44, and a lifting cylinder 43B for lifting up and
down the frame member 44.
[0047] When the frame member 44 is lifted down to a descent
position by the lifting mechanism 43 in the state in which the
transferring means 6 is located in the holding position E, the both
height direction members 3A and 3B of the decorative frame 3 being
held at the holding position E are grasped by the four clamp
members 45. The frame member 44 is lifted up to an ascent position
from this state by the lifting mechanism 43, and the decorative
frame 3 grasped by the clamp members 45 is thereby lifted up above
the supporting member 27. Subsequently, the movable frame 36 is
moved a predetermined distance toward the other holding position F
by the driving mechanism 37. Accordingly, the decorative frame 3
retained by the clamp members 45 of the transferring means 6 is
located above the attaching position B, and the nailing means 7 is
moved from the attaching position B to the holding position F.
Since the door 2 is conveyed into the attaching position B and is
positioned by the second positioning means 13 by this time, the
decorative frame 3 retained by the clamp members 45 of the
transferring means 6 is supported above and adjacent the door
2.
[0048] The frame member 44 and the clamp members 45 are lifted down
to the descent position from this state by the lifting mechanism 43
of the transferring means 6, and thus, the decorative frame 3 of
square U shape is superimposed on the upper side portion 2c and the
both side portions 2a and 2b of the frame member 2A of the door 2.
Since the adhesive has been already applied to the both side
portions 2a and 2b and the upper side portion 2c of the top surface
of the door 2, the decorative frame 3 and the door 2 are bonded to
each other with the adhesive (see FIG. 2(b)).
[0049] Subsequently, the clamp members 45 of the transferring means
6 release the grasping state of the decorative frame 3, and also,
the frame member 44 and the clamp members 45 are lifted up to the
ascent position by the lifting mechanism 43. As described above,
the decorative frame 3 is transferred from the holding position E
to the attaching position B, and is positioned above and
superimposed on the door 2 by the driving mechanism 37 and the
transferring means 6.
[0050] The transferring means 6 which released the decorative frame
3 is then moved from above the attaching position B to the holding
position E by the driving mechanism 37, and stops at the holding
position E above a new decorative frame 3. Thereafter, the frame
member 44 and the clamp members 45 are lifted down by the lifting
mechanism 43 of the transferring means 6, and the new decorative
frame 3 is thereby grasped by the clamp members 45.
[0051] On the other hand, the nailing means 7 is moved from the
holding position F to the attaching position B and is stopped above
and adjacent the door 2 and the decorative frame 3 at the same time
as when the transferring means 6 is returned to the holding
position E as described above. The plurality of nailing machines 10
of the nailing means 7 drive nails into the decorative frame 3 at
the attaching position B.
[0052] As shown in FIG. 5 and FIG. 6, the nailing means 7 comprises
a rectangular frame member 46 liftably attached to the movable
frame 36, a total of eight nailing machines 10 attached to the
frame member 46 (see FIG. 2(b) and FIG. 6), and a lifting mechanism
47 for lifting up and down the frame member 46. The lifting
mechanism 47 comprises a motor 48 as a driving source, a nut member
51 rotated forwardly and reversely via a timing belt 49 and a pair
of timing pulleys 50, a lifting shaft 52 whose screw portion in an
upper side is screwed with the nut member 51 and whose lower
portion is coupled to the frame member 46, and four lifting guides
53 for guiding the lifting operation of the frame member 46. By
forwardly and reversely rotating the motor 48 of the lifting
mechanism 47 a certain amount, all the nailing machines 10 can be
lifted up and down to an ascent position and a descent position. In
the present embodiment, two of the nailing machines 10 are attached
to one of short sides of the frame member 46 and three of the
nailing machines 10 are attached to each of long sides thereof (see
FIG. 2(b)). The configuration of the nailing machine 10 itself is
the same as the one which is conventionally well known.
[0053] When the nailing means 7 is located above the attaching
position B by the driving mechanism 37 as described above, the
entire nailing means 7 is lifted down to the descent position by
the lifting mechanism 47. The total of eight nailing machines 10
are thereby located above and adjacent the decorative frame 3 of
square U shape superimposed on the door 2 (FIG. 2(b) and FIG. 6).
In this state, all the nailing machines 10 simultaneously drive
nails. Furthermore, the total of six nailing machines 10 disposed
in the long sides of the frame member 46 are configured to be moved
in parallel a predetermined amount along the long sides of the
frame member 46 by an unshown movable mechanism after driving nails
once, and simultaneously drive nails again there.
[0054] As described above, the nailing machines 10 of the nailing
means 7 drive nails at a total of 14 locations to the door 2 and
the decorative frame 3 which are being stopped at the attaching
position B, and the decorative frame 3 is thereby rigidly fixed to
the top surface of the door 2.
[0055] Subsequently, the nailing means 7 is lifted up to the ascent
position by the lifting mechanism 47, and then, the nailing means 7
is moved from the attaching position B to the holding position F to
be in the holding state there, by working with the driving
mechanism 37 at the time of transferring the next decorative frame
3 from the holding position E to the attaching position B.
[0056] On the other hand, the door 2 to which the attachment of the
decorative frame 3 has been completed at the attaching position B
as described above is released from the positioning state by the
second positioning means 13, and also, is conveyed into the
reversing position C from the attaching position B by the forward
rotation operation of the second roller conveyor 17.
[0057] The third roller conveyors 21 capable of oscillating between
the upper horizontal positions and the lower tilt positions are
disposed at the reversing position C as described above. The door 2
is conveyed into the reversing position C from the attaching
position B in the state in which the third roller conveyors 21 are
in the upper horizontal state, and also, are forwardly rotated by
an unshown driving source. At this time, the third roller conveyors
21 are stopped after being forwardly rotated a certain amount, and
thus, the door 2 is stopped in a predetermined position in the
conveying direction on the third roller conveyors 21.
[0058] As shown in FIGS. 7 to 11, the reversing means 8 comprises a
pair of supporting frames 55 disposed at the fixed frame 18 so as
to face each other with a predetermined distance therebetween in
the conveying direction, a rotating plate 56 rotatably disposed in
a center portion of the respective supporting frames 55, a door
retaining mechanism 54 attached to the respective rotating plates
56, and a rotating mechanism 59 for rotating the both rotating
plates 56 180 degrees around a horizontal rotation center as the
center.
[0059] The respective supporting frames 55 are composed of a
plate-like member whose hollow portion is formed to be circular.
The respective rotating plates 56 have a circular disc shape having
approximately the same size as the circular hollow portion of the
supporting frame 55. In a center portion of the respective rotating
plates 56, there is formed a rectangular opening 56A through which
the decorative frame 3 and the door 2 can sufficiently pass.
[0060] Three engaging rollers 60 are rotatably attached to an outer
circumference portion of the respective rotating plates 56, and a
groove in an outer circumference portion of the engaging roller 60
engages with a circular inner circumference portion 55A of the
supporting frame 55. The both rotating plates 56 can be thereby
guided by the inner circumference portions 55A of the supporting
frames 55 to be forwardly and reversely rotated.
[0061] The door retaining mechanism 54 comprises a first grasping
mechanism 57 for grasping the door 2 from a vertical direction, and
a second grasping mechanism 58 for grasping the door 2 from a
lateral direction.
[0062] A plate-like member 61 is respectively horizontally coupled
to a lower margin portion of the respective openings 56A of the
respective rotating plates 56. Furthermore, a pair of lifting
cylinders 62 is attached to a wall surface of the respective
rotating plates 56 so as to face the respective plate-like members
61. A grasping member 62A composed of an elastic body is attached
to a top end of the respective lifting cylinders 62. The first
grasping mechanism 57 is constituted by the plate-like member 61,
the lifting cylinders 62, and the grasping members 62A.
[0063] Also, a plate-like member 63 is respectively vertically
coupled to a side margin portion of the respective openings 56A of
the respective rotating plates 56. A cylinder 64 is attached to the
wall surface of the respective rotating plates 56 so as to face the
plate-like member 63, and a grasping member 64A composed of an
elastic body is also attached to a top end of the cylinder 64. The
second grasping mechanism 58 is constituted by the plate-like
member 63, the cylinder 64, and the grasping member 64A.
[0064] When the both rotating plates 56 are in normal positions
before being reversed, the plate-like members 61 are located in a
lower side and are horizontal, and the grasping members 62A are
located in an upper side as shown in FIG. 7 and FIG. 10. The height
of the plate-like members 61 at this time is slightly lower than
the height of the mount surfaces of the third roller conveyors 21
in the horizontal state (FIG. 7).
[0065] When the both rotating plates 56 are in the normal
positions, the door 2 is conveyed into the reversing position C
from the attaching position B as described above. Therefore, the
door 2 with the decorative frame 3 fixed to the top surface passes
through the opening 56A of the rotating plate 56 in the upstream
side, is conveyed onto the third roller conveyors 21 of the
reversing position C, and is stopped at a predetermined position
(FIG. 7).
[0066] Subsequently, as shown in FIG. 9, the third roller conveyors
21 are lowered by the air cylinders 22 to be in the tilt state.
Therefore, lower portions of both ends in a longitudinal direction
of the door 2 are supported by the plate-like members 61 of the
both rotating plates 56. After that, the cylinders 64 of the second
grasping mechanisms 58 of the both rotating plates 56 are moved
forward, and the both sides of the door 2 are sandwiched by the
respective grasping members 64A. Since the lifting cylinders 62 of
the first grasping mechanism 57 of the respective rotating plates
56 are then moved forward in synchronization with each other, one
end of the door 2 in the longitudinal direction is grasped by the
grasping members 62A and the plate-like member 61 of the rotating
plate 56 in the upstream side, and the other end of the door 2 in
the longitudinal direction is grasped by the grasping members 62A
and the plate-like member 61 of the rotating plate 56 in the
downstream side. As described above, the door 2 is positioned in
the width direction and the vertical direction in the reversing
position C (FIG. 8, FIG. 10, and FIG. 11).
[0067] The door 2 in the reversing position C is thereby retained
by the door retaining mechanism 54 of the respective rotating
plates 56. The both rotating plates 56 are united by the rotating
mechanism 59 in this state, and are reversed 180 degrees in a
clockwise direction in FIG. 10.
[0068] The rotating mechanism 59 comprises a sector gear 75 coupled
to the wall surface of the rotating plate 56 and extending in a
half arc, and a pinion 76 meshing with the sector gear 75 and
rotated in forward and reverse directions by working with a motor
74. When the pinion 76 is forwardly rotated a predetermined amount
by working with the motor 74, the both rotating plates 56 and the
door 2 retained by the door retaining mechanisms 54 are reversed
180 degrees. Since the third roller conveyors 21 are being lowered
at this time, the door 2 is reversed 180 degrees without abutting
the third roller conveyors 21, and the surface to which the
decorative frame 3 has not been attached becomes the new top
surface.
[0069] The rotation axis when the door 2 is reversed 180 degrees by
the rotating mechanism 59 corresponds to a virtual line connecting
axis of the both rotating plates 56. The rotation axis is
horizontal and is in parallel with the conveying direction of the
conveying means 4.
[0070] When the door 2 is reversed by the rotating mechanism 59 of
the reversing means 8, the third roller conveyors 21 are raised
from the tilt positions to the upper horizontal positions by the
air cylinders 22.
[0071] Subsequently, the second grasping mechanisms 58 of the
rotating plates 56 release the grasping state of the both side
portions of the door 2, and the grasping members 62A of the lifting
cylinders 62 of the first grasping mechanism 57 of the respective
rotating plates 56 are lowered to release the grasping state of the
door 2. The door 2 is thereby supported on the third roller
conveyors 21. The door 2 is reversed 180 degrees by the reversing
means 8 of the reversing position C, and then, is supported by the
third roller conveyors 21 as described above.
[0072] Since the third roller conveyors 21, and the both roller
conveyors 15 and 17 are then reversely rotated, the door 2 is
conveyed back from the reversing position C via the attaching
position B to the adhesive applying position A.
[0073] When the door 2 is conveyed out from the reversing position
C, the rotating mechanism 59 of the reversing means 8 rotates the
pinion 76 in a direction opposite to the direction before via the
motor 74. Accordingly, the both rotating plates 56 are rotated 180
degrees in a direction opposite to the direction before, and are
returned to the normal positions from the reversed positions.
[0074] On the other hand, the door 2 returned to the adhesive
applying position A is brought into abutment with the stopper 23A
of the third positioning means 23 to be stopped, and is also
positioned at the adhesive applying position A in the width
direction of the conveying means 4 by the positioning cylinders 11B
of the first positioning means 11.
[0075] Thereafter, the decorative frame 3 is attached to the new
top surface of the door 2 as in the processing steps of the first
decorative frame 3 to the door 2 described above. That is, first,
the adhesive applying means 12 applies an adhesive to the top
surface of the frame member 2A of the door 2 at the adhesive
applying position A (see FIG. 2(a)). The second decorative frame 3
is positioned and superimposed by the transferring means 6 on the
door 2 which is being stopped at the attaching position B by the
second positioning means 13, and then, the nailing means 7 drives
nails into the second decorative frame 3 at predetermined locations
(see FIG. 2(b)).
[0076] The attachment of the decorative frames 3 to the both front
and back surfaces of the door 2 is thereby completed. The door 2 to
which the decorative frames 3 have been attached to the both front
and back surfaces as described above is conveyed from the attaching
position B via the reversing position C to the downstream side
thereof by rotating the second roller conveyor 17 and the third
roller conveyors 21 in the forward direction.
[0077] As described above, the decorative door frame attaching
apparatus 1 according to the present embodiment can attach the
decorative frames 3 to the both front and back surfaces of the door
2 being conveyed in a laid state. Accordingly, according to the
present embodiment, the attaching operation of the decorative
frames 3 to the door 2 can be efficiently performed in comparison
with the conventional case where the attachment of the decorative
frames 3 to the door 2 is manually performed. Furthermore, the door
2 as a product to which the decorative frames 3 have been attached
has an uniform appearance and coupling state since an attaching
position or a fixing state of the decorative frames 3 is
uniform.
[0078] Although the door 2 is returned to the adhesive applying
position A after being reversed by the reversing means 8 and the
second decorative frame 3 is attached to the new top surface in the
above embodiment, a following process may be performed. That is,
another one set of the adhesive applying means, the transferring
means, the nailing means or the like similar to those in the above
embodiment is disposed in the downstream side from the reversing
means 8. When the first decorative frame 3 is coupled to the door 2
and the door 2 is reversed by the reversing means 8, the door 2 may
be conveyed to the downstream side, and the second decorative frame
3 may be attached to the new top surface of the door 2 by the
adhesive applying means, the transferring means, and the nailing
means disposed there.
* * * * *