U.S. patent number 3,806,175 [Application Number 05/274,857] was granted by the patent office on 1974-04-23 for t-section astragal.
Invention is credited to Frederik Corneles Van Herpen.
United States Patent |
3,806,175 |
Van Herpen |
April 23, 1974 |
**Please see images for:
( Certificate of Correction ) ** |
T-SECTION ASTRAGAL
Abstract
T-section for the edges of doors, windows, window and door
frames and panels with a body having at its one end a bent over
edge, positioned squarely on the body and at its other end at least
one flange on the same side of the body as the bent over edge, an
oblong casing being formed in the vicinity of at least one of the
longitudinal ends of the section on the side of the bent over edge
on the body of said section for housing an oblong sliding locking
member.
Inventors: |
Van Herpen; Frederik Corneles
(66 Noldigk, NL) |
Family
ID: |
23049891 |
Appl.
No.: |
05/274,857 |
Filed: |
July 25, 1972 |
Current U.S.
Class: |
292/147;
49/369 |
Current CPC
Class: |
E05C
1/04 (20130101); E06B 3/365 (20130101); Y10T
292/1024 (20150401) |
Current International
Class: |
E06B
3/36 (20060101); E06B 3/32 (20060101); E05C
1/04 (20060101); E05C 1/00 (20060101); E05c
001/04 () |
Field of
Search: |
;49/366,367,368,369
;292/145,147,152,DIG.21 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Craig, Jr.; Albert G.
Attorney, Agent or Firm: Feldman; Stephen E.
Claims
What I claim is:
1. T-Section for the edge of a movable member comprising a body
portion having a bent-over edge at one side positioned
perpendicularly to said body and at its other side a flange
extending perpendicularly thereto toward and away from the movable
member and parallel to the bent-over edge, part of this bent-over
edge and said flange enclosing the end of the movable member, an
oblong casing being formed between the body portion and the movable
member, said casing adapted to enclose a slidable oblong locking
member, one end of which can protrude beyond the length of the
T-section, said bent-over edge being provided with an abutment face
directed toward the movable member, said section being unitary in
construction of the same material and substantially inflexible.
2. A section according to claim 1 wherein the casing has a
prismatic shape with a rectangular cross-section and the locking
member is of generally prismatic shape and provided with a nose
protruding through an oblong recess in the body of the section and
with a member for fixing the lock in one of two possible
positions.
3. A section according to claim 2 wherein said abutment face is
flush with the movable member.
4. A section according to claim 3 wherein said flange has a
thickening flush with a side of the movable member.
5. A section according to claim 4 wherein the movable member is a
member from the group comprising a door, a window, a window frame,
a door frame and a panel.
6. A section according to claim 5 wherein the fixing member is a
spring which resiliently holds the locking member in a selected one
of the two possible positions.
Description
DISCUSSION OF THE PRIOR ART
The invention relates to a T-section for the edges of doors,
windows, window and door frames and panels with a body having at
its one end a bent over edge, positioned squarely on the body and
at its other end at least one flange on the same side of the body
as this bent over edge.
Such a section is known in itself. This section is particularly
used in combination with an analogous but invertedly disposed
section on the cooperating edges of double doors, e.g., folding
doors.
In may cases it is often desired that on the upper, but mostly also
on the lower side of such a door, a so-called "monkey" bolt is
mounted, which is a locking member by which one of the doors can be
fixed in the groove. So far, the provision of the monkey bolt, is
supplied as a separate unit and consists of a rather wide prismatic
housing in which a locking member is slidably mounted in the
longitudinal direction, by cutting out a corresponding cavity in
the door in which the monkey bolt can be received. The latter is
then often via the front plate parts, extending in the longitudinal
direction, secured to the material of the door by means of screws.
The provision of cavities for accommodating the monkey bolt is a
delicate job resulting in --even when the job is done with great
care, that is to say without damaging the resting side part of the
door-- a considerable weakening of said door. When a force is
exerted perpendicular to the plane of the door on a door locked by
means of monkey bolts this force will be transmitted via the
housing of the monkey bolt to the upper and lower part of the
already considerably weakened door owing to the provision of the
monkey bolt. In practice it frequently occurs that folding doors
having stood the cutting operation, required for the provision of
the monkey bolt, without any damage appeared to be seriously
damaged at the upper and lower end after having been supplied with
said bolt.
SUMMARY OF THE INVENTION
It is an object of the invention to obviate these difficulties.
According to the invention this is attained by providing in the
vicinity of at least one of the longitudinal ends of the section on
the side of the bent over edge on the body of the section an oblong
casing, extending in the longitudinal direction of the body, in
which an oblong locking member, slidable by one end to beyond the
end of the section, is accommodated.
According to the invention the housing of the monkey bolt is
therefore mounted on the T-section which is then disposed in such a
way against the front end of the door that the body of the section
is remote from the front end over a distance equal to the depth of
the housing of the monkey bolt. The section can be secured in the
usual way by means of screws, for which purpose the full width of
the door is available, since it is no longer necessary to cut into
the door before securing the monkey bolt, the risk of damage to the
door during the former operation is eliminated so that the entire
length of the door stays unimpaired. The section according to the
invention ensures further a reinforcement and stiffening of the
door.
Preferably an abutment face, turned towards the housing, is formed
on the bent over edge, this face being situated parallel to the
body of the section and tangential to the outer delimitation of the
housing of the lock.
A preferred embodiment is characterised by the housing having a
prismatic shape with a rectangular cross section and the locking
member of generally prismatic shape being provided with a nose,
protruding through an oblong recess in the body of the section, and
with members for fixing the locking member in one of two possible
positions.
It is clear that in the body now situated in spaced relationship
from the front end of the door, also the latch and dead bolt can be
provided, so that also this time consuming operation, moreover
often damaging the door, can be omitted.
SURVEY OF THE DRAWINGS
FIG. 1 is a cross section through a pair of folding doors one of
which is provided with a section according to the invention;
FIG. 2 is a longitudinal section on the line II--II in FIG. 1;
FIG. 3 is a front view of the section with the monkey bolt
according to FIG. 1;
FIG. 4 is a back view of this section.
DESCRIPTION OF PREFERRED EMBODIMENTS
FIG. 1 shows in cross section two cooperating folding doors 1, 1a,
the front sides 2, 2a of which each carrying a section 3, 3a. The
section 3 is constructed in conformity to the invention; the
section 3a is one known in itself. Each section 3, 3a consists of a
body 4, 4a with a bent over edge 5, 5a with at the other end of the
body 4, 4a respectively, a flange 6, 6a with an inwardly directed
thickening 7, 7a respectively, and a second flange 8, 8a,
respectively, with a thickening 9, 9a, respectively. According to
the invention the housing 10 for a monkey bolt is formed on the
body 4 of the section 3. This housing is constituted by two legs
11, 12 square with the body 4, the ends of the legs being bent
over, so as to form two flanges 13, 14 facing one the other. Within
the housing 10 is a prismatic space with a rectangular cross
section in which a locking member 15 is disposed.
This locking member is represented in cross section in FIG. 2. As
is shown in FIG. 1, it has a generally prismatic shape and it has
on its front face a milled nose 16 which protrudes through an
oblong opening 17, formed in the body 4, while in the back face
four grooves 18, 19, 20, 21 are introduced. The distance between
the grooves 18, 20 on the one hand, and 19, 21 on the other hand is
equal, while the distance between the grooves 18 and 19 is equal to
the one between the grooves 20 and 21 and determines the distance
over which the locking member 15 in the housing 10 can be slid up
and down. The grooves 18 to 20 cooperate with an oblong plate
spring 22 with bent over ends 23, 24 which via the joggled square
part 25 is fixed in a rectangular recess 26 in the back wall 14 and
13.
The presence of the abutment noses 27, 28 above and below the
grooves 18, 21, respectively, limits the eventual path of motion of
the locking member 15; from the position depicted in FIG. 2 the
locking member can only be moved upwardly over a distance
corresponding to the one between the grooves 18 and 19.
An inwardly directed abutment 29 is formed on the flange 5 of which
the face 30, directed away from the body 4 is aligned with the
outer face of the flanges 13, 14. When mounting the section against
the front face of the door 1, this abutment face 30 determines
together with the outer sides of the flanges 13, 14, the distance
from the body 4 to the front face of the door. The section is fixed
in the usual way by means of screws in the front face.
As is shown in the drawing, the door 1a is provided with a section
4a shaped such that the two sections cooperate in the way as known
in itself.
The latch and dead bolt of the lock may be provided in the body 4
of the section, so that it is no longer necessary to cut out
suitable recesses in the material of the door 1.
The invention provides a simple, efficient, inexpensive and
labour-saving solution for the problem of providing a monkey bolt
for mutually cooperating folding doors or french windows, thereby
cancelling each necessity for trimming the doors.
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