U.S. patent number RE40,055 [Application Number 11/286,441] was granted by the patent office on 2008-02-12 for positioning unit for an electronic device.
This patent grant is currently assigned to Wistron Corporation. Invention is credited to Chu-Hsian Chian, Shu-Hsien Chu, Chang-Long Hsu, Hua-Chung Tseng, Chia-Liang Yen.
United States Patent |
RE40,055 |
Tseng , et al. |
February 12, 2008 |
Positioning unit for an electronic device
Abstract
A position unit is mounted on an electronic device and includes
a catch member and a locking member. The catch member defines a gap
which has a width that is reducible when the catch member moves
from a non-catching position to a catching position and that is
expandable when the catch member moves from the catching position
to the non-catching position. The locking member has an engine end
extending into the gap. The locking member is operable to move the
catch member from the non-catching position to the catching
position and from the catching position to an urging position. The
engaging end of the locking member engages the catch member when
the width of the gap is reduced upon movement of the catch member
to the catching position. The engaging end of the locking member
disengages from the catch member when the width of the gap is
enlarged upon movement of the catch member to the non-catching
position.
Inventors: |
Tseng; Hua-Chung (Taipei Hsien,
TW), Yen; Chia-Liang (Taipei Hsien, TW),
Chian; Chu-Hsian (Taipei Hsien, TW), Hsu;
Chang-Long (Taipei Hsien, TW), Chu; Shu-Hsien
(Taipei Hsien, TW) |
Assignee: |
Wistron Corporation (Hsi-Chih,
Taipei Hsien, TW)
|
Family
ID: |
21687244 |
Appl.
No.: |
11/286,441 |
Filed: |
November 25, 2005 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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Reissue of: |
10123772 |
Apr 16, 2002 |
06654233 |
Nov 25, 2003 |
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Foreign Application Priority Data
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Nov 8, 2001 [TW] |
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90219221 |
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Current U.S.
Class: |
361/679.27;
16/308; 16/366; 312/223.2 |
Current CPC
Class: |
G06F
1/1616 (20130101); G06F 1/1679 (20130101); G06F
1/1681 (20130101); Y10T 16/547 (20150115); Y10T
16/5389 (20150115) |
Current International
Class: |
E05D
11/10 (20060101) |
Field of
Search: |
;361/679-683,685
;345/1.1,30 ;16/223,327,328,331,306,332-334,337-341,385,368,342
;248/917,923,615,345.1 ;364/708.1,708
;403/119-121,83,84,95,146,103 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Datskovskiy; Michael
Attorney, Agent or Firm: Hsu; Winston
Claims
We claim:
1. A positioning unit for an electronic device having first and
second housings pivoted to each other, said positioning unit
comprising: a catch member adapted to be mounted movably in the
first housing, and having a front end that defines a gap having a
width which is reducible when said catch member is moved in a
transverse direction from a non-catching position to a catching
position and which is expandable when said catch member is moved
from the catching position to the non-catching position; and a
locking member adapted to be mounted movably on an exterior of the
first housing and having an engaging end that extends into said gap
.[.and a retaining element that is adapted to releasably engage the
second housing.]. , said locking member being operable for moving
said catch member from the non-catching position to the catching
position when an external force is applied to said locking member,
said locking member being movable together with said catch member
in the transverse direction from an engaging position, in which,
said catch member is moved to the catching position, .Iadd.and
.Iaddend.said engaging end engages said front end of said catch
member by virtue of reduction of the width of said gap .[., and
said retaining element is adapted to releasably engage the second
housing so as to lock the second housing to a disengaging position,
in which, said catch member is moved to the non-catching position,
said engaging end disengages from said front end of said catch
member by virtue of expansion of the width of said gap, and said
retaining element is adapted to disengage from the second housing
so as to unlock the second housing.]. .
2. The positioning unit of claim .[.1.]. .Iadd.14.Iaddend., further
comprising an urging member adapted to be mounted in the first
housing adjacent to said catch member, said catching member being
further movable together with said locking member in the transverse
direction from the catching position to an urging position, in
which, said urging member is compressed by said catch member so as
to urge said catch member to move from the urging position to the
non-catching position and to urge said locking member to move from
the engaging position to the disengaging position.
3. The positioning unit of claim 2, further comprising a
constricting member adapted to be mounted in the first housing and
including a casing that has a rear closed end and a front opening
opposite to said rear closed end, said catch member including a
sliding block that extends through said front opening and into said
casing, and a pair of elastic catching arms that extend outwardly
of said casing from said sliding block through said front opening
and that flare from said front opening to define said gap, said
catching arms elastically moving toward each other so as to reduce
the width of said gap when sliding over a periphery of said front
opening into said casing upon moving said catch member from the
non-catching position to the catching position, said catching arms
having opposing anchored free ends that engage said engaging end of
said locking member when said catch member is positioned at the
catching position.
4. The positioning unit of claim 3, wherein said sliding block has
a rear end formed with a spring retaining hole, said urging member
being in the form of a coil spring that is received in said spring
retaining hole and that abuts against said rear closed end of said
casing so as to urge said catch member to move to the non-catching
position when said catch member is positioned at the urging
position.
5. The positioning unit of claim 4, wherein said casing has a top
wall formed with a slot, said sliding block having a guide that
protrudes therefrom into said slot so as to guide movement of said
catch member in the transverse direction.
6. The positioning unit of claim 5, further comprising a mounting
seat adapted to be mounted securely in the first housing and having
two opposing side walls, opposing front and rear top beams
interconnecting said side walls and formed with two opposing front
and rear top slits, and a front wall that extends downwardly from
said front top beam and that is formed with a through-hole beneath
said front top slit, said casing being mounted securely in said
mounting seat below and between said front and rear top beams, said
locking member including a button adapted to be mounted on the
exterior of the first housing, a guide plate that extends from said
button through said front and rear top slits, and a pressing shaft
that extends from said button and that has a free end which defines
said engaging end of said locking member and which extends through
said through-hole and into said gap, said guide plate having two
opposite sides formed with two opposing wings that engage a
periphery of said front top slit so as to prevent removal of said
locking member from said front and rear top slits when said locking
member moves from the engaging position to the disengaging
position.
7. An electronic device, comprising: first and second housing that
are pivoted to each other, said second housing being rotatable
relative to said first housing; a catch member mounted movably in
the first housing, and having a front end that defines a gap having
a width which is reducible when said catch member is moved in a
transverse direction from a non-catching position to a catching
position and which is expandable when said catch member is moved
from the catching position to the non-catching position; and a
locking member mounted movably on an exterior of said first housing
and having an engaging end that extends into said gap .[.and a
retaining element that is releasably engageable with said second
housing.]. , said locking member being operable for moving said
catch member from the non-catching position to the catching
position when an external force is applied to said locking member,
and being movable together with said catch member in the transverse
direction from an engaging position, in which, said catch member is
moved to the catching position, .Iadd.and .Iaddend.said engaging
end engages said front end of said catch member by virtue of
reduction of the width of said gap .[., and said retaining element
releasbly engages said second housing so as to lock said second
housing to a disengaging position, in which, said catch member is
moved to the non-catching position, said engaging end disengages
from said front end of said catch member by virtue of expansion of
the width of said gap, and said retaining element disengages from
said second housing so as to unlock said second housing.]. .
8. The electronic device of claim .[.7.]. .Iadd.15.Iaddend.,
further comprising an urging member mounted in said first housing
adjacent to said catch member, said catch member being further
movable together with said locking member in the transverse
direction from the catching position to an urging position, in
which, said urging member is compressed by said catch member so as
to urge said catch member to move from the urging position to the
non-catching position and to urge said locking member to move from
the engaging position to the disengaging position.
9. The electronic device of claim 8, further comprising a
constricting member mounted in said first housing and including a
casing that has a rear closed end and a front opening opposite to
said rear closed end, said catch member including a sliding block
that extends through said front opening and into said casing, and a
pair of elastic catching arms that extend outwardly of said casing
from said sliding block through said front opening and that flare
from said front opening to define said gap, said catching arms
elastically moving toward each other so as to reduce the width of
said gap when sliding over a periphery of said front opening into
said casing upon moving said catch member from the non-catching
position to the catching position, said catching arms having
opposing anchored free ends that engage said engaging end of said
locking member when said catch member is positioned at the catching
position.
10. The electronic device of claim 9, wherein said sliding block
has a rear end formed with a spring retaining hole, said urging
member being in the form of a coil spring that is received in said
spring retaining hole and that abuts against said rear closed end
of said casing so as to urge said catch member to move to the
non-catching position when said catch member is positioned at the
urging position.
11. The electronic device of claim 10, wherein said casing has a
top wall formed with a slot, said sliding block having a guide that
protrudes therefrom into said slot so as to guide movement of said
catch member in the transverse direction.
12. The electronic device of claim 11, further comprising a
mounting seat mounted securely in said first housing and having two
opposing side walls, opposing front and rear top beams
interconnecting said side walls and formed with two opposing front
and rear top slits, and a front wall that extends downwardly from
said front top beam and that is formed with a through-hole beneath
said front top slit, said casing being mounted securely in said
mounting seat below and between said front and rear top beams, said
locking member including a button mounted on said exterior of said
first housing, a guide plate that extends from said button through
said front and rear top slits, and a pressing shaft that extends
from said button and that has a free end which defines said
engaging end of said locking member and which extends through said
through-hole and into said gap, said guide plate having two
opposite sides formed with two opposing wings that engage a
periphery of said front top split so as to prevent removal of said
locking member from said front and rear top slits when said locking
member moves from the engaging position to the disengaging
position.
13. A portable computer, comprising: a main body having a first
housing; a display module having a second housing that is pivoted
to said first housing so as to permit rotation of said display
module relative to said main body; a catch member mounted movably
in said first housing, and having a front end that defines a gap
having a width which is reducible when said catch member is moved
in a transverse direction from a non-catching position to a
catching position and which is expandable when said catch member is
moved from the catching position to the non-catching position; and
a locking member mounted movably on an exterior of said first
housing and having an engaging end that extends into said gap
.[.and a retaining element that is releasably engageable with said
second housing.]. , said locking member being operable for moving
said catch member from the non-catching position to the catching
position when an external force is applied to said locking member,
and being movable together with said catch member in the transverse
direction from an engaging position, in which, said catch member is
moved to the catching position, .Iadd.and .Iaddend.said engaging
end engages said front end of said catch member by virtue of
reduction of the width of said gap .[., and said retaining element
releasably engages said second housing so as to lock said second
housing to a disengaging position, in which, said catch member is
moved to the non-catching position, said engaging end disengages
from said front end of said catch member by virtue of expansion of
the width of said gap, and said retaining element disengages from
said second housing so as to unlock said second housing.]. .
.Iadd.14. The positioning unit of claim 1, wherein the locking
member further comprises a retaining element that is adapted to
releasably engage the second housing, and said retaining element is
adapted to releasably engage the second housing so as to lock the
second housing to a disengaging position, in which, said catch
member is moved to the non-catching position, said engaging end
disengages from said front end of said catch member by virtue of
expansion of the width of said gap, and said retaining element is
adapted to disengage from the second housing so as to unlock the
second housing. .Iaddend.
.Iadd.15. The electronic device of claim 7, wherein the locking
member further comprises a retaining element that is releasably
engageable with said second housing, and said retaining element
releasably engages said second housing so as to lock said second
housing to a disengaging position, in which, said catch member is
moved to the non-catching position, said engaging end disengages
from said front end of said catch member by virtue of expansion of
the width of said gap, and said retaining element disengages from
said second housing so as to unlock said second housing.
.Iaddend.
.Iadd.16. The portable computer of claim 13, wherein the locking
member further comprises a retaining element that is releasably
engageable with said second housing, and said retaining element
releasably engages said second housing so as to lock said second
housing to a disengaging position, in which, said catch member is
moved to the non-catching position, said engaging end disengages
from said front end of said catch member by virtue of expansion of
the width of said gap, and said retaining element disengages from
said second housing so as to unlock said second housing.
.Iaddend.
.Iadd.17. An electronic device having a positioning unit for
preventing inclination comprising: a first module having a front
end, a rear end, and two opposing side ends between the front end
and the rear end; a second module having a front end, a rear end,
and two opposing side ends between the front end and the rear end,
a central axis extending through the front end and the rear end of
the second module, the second module having the rear end pivoted to
the rear end of the first module so as to open away from or close
with the first module, the second module being capable of rotating
about the central axis when the second module is opened from the
first module; a pair of mounting seats each having a space and
respective adapted to be mounted in the opposite ends of the rear
end of the first module; a pair of catch members each adapted to be
mounted movably in the space of the corresponding mounting seat,
the catch member having a catching part and capable of moving
between the first position and a second position by virtue of a
force; and a pair of locking members each adapted to move relative
to each mounting seat, the locking member being operable for moving
the catching part from the first position to the second position
and the locking member engaging the side end of the second module
when an external force is applied to the locking member.
.Iaddend.
.Iadd.18. The electronic device of claim 17 wherein when the pair
of catch members moves from the first position to the second
position, a kinetic energy is saved; when the locking member is
pressed again, the kinetic energy is released by each catching part
and the catching part returns to the first position, pushing each
locking member to a distance away from the side end of the second
module. .Iaddend.
.Iadd.19. A positioning unit for preventing inclination of an
electronic device mounted on two opposing sides of the electronic
device, the electronic device comprising a first module and a
second module, the first module having two opposing side ends, the
second module having a rear end pivoted to a rear end of the first
module so as to open away from or close with the first module, the
second module being capable of rotating about a central axis when
the second module is opened from the first module, the positioning
unit comprising: a pair of catch members each adapted to be mounted
movably at the side of the first module, the catch member having a
catching part and capable of moving between a first position and a
second position by virtue of a force; and a pair of locking members
each adapted to move relative to each catch member, the locking
member being operable for moving the catching part from the first
position to the second position and the locking member engaging the
side end of the second module when an external force is applied to
the locking member. .Iaddend.
.Iadd.20. The positioning unit of claim 19 wherein when the pair of
catch members moves from the first position to the second position,
a kinetic energy is saved; when the locking member is pressed
again, the kinetic energy is released by the catching part and the
catching part returns to the first position, pushing the locking
member to a distance away from the side end of the second module.
.Iaddend.
Description
CROSS-REFERENCE TO RELATED APPLICATION
This application claims priority of Taiwan patent Application no.
90219221, filed on Nov. 8, 2001.
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a positioning unit for an electronic
device, more particularly to a positioning unit for positioning a
display module relative to a main body of a portable computer.
2. Description of the Related Art
FIG. 1 illustrates a conventional portable computer 9 which
includes a display module 901 and a main body 902 pivoted to the
display module 901 via a hinge member 903 so as to permit the
display module 901 to be rotatable about a vertical axis (Z) and a
horizontal axis (X). The conventional portable computer 9 is
disadvantageous in that components of the hinge member 903 tend to
loosen after a period of use, thereby resulting in undesired
inclination of the display module 901 relative to the main body
902. Moreover, since the display module 901 is supported on the
main body 902 solely by the hinge amount 903, turning and
positioning of the displayed module 901 relative to the main body
902 tends to be unstable.
SUMMARY OF THE INVENTION
Therefore, an object of the present invention is to provide a
positioning unit for an electronic device that is capable of
overcoming the aforementioned drawbacks.
According to the present invention, there is provided a positioning
unit for an electronic device that has first and second housings
pivoted to each other. The positioning unit includes: a catch
member adapted to be mounted movably in the first housing, and
having a front end that defines a gap having a width which is
reducible when the catch member is moved in a transverse direction
from a non-catching position to a catching position and which is
expandable when the catch member is moved from the catching
position to the non-catching position; and a locking member adapted
to be mounted movably on an exterior of the first housing and
having an engaging end that extends into the gap and a retaining
element that is adapted to releasably engage the second housing.
The locking member is operable for moving the catch member from the
non-catching position to the catching position when an external
force is applied to the locking member. The locking member is
movable together with the catch member in the transverse direction
from an engaging position, in which, the catch member is moved to
the catching position, the engaging end engages the front end of
the catch member by virtue of reduction of the width of the gap,
and the retaining element is adapted to releasably engage the
second housing so as to lock the second housing to a disengaging
position, in which, the catch member is moved to the non-catching
position, the engaging end disengages from the front end of the
catch member by virtue of expansion of the width of the gap, and
the retaining element is adapted to disengage from the second
housing so as to unlock the second housing.
BRIEF DESCRIPTION OF THE DRAWINGS
In drawings which illustrate an embodiment of the invention,
FIG. 1 is a perspective view of a conventional portable
computer;
FIG. 2 is a perspective view of a portable computer embodying this
invention;
FIG. 3 is an exploded perspective view of a positioning unit of the
portable computer of FIG. 2;
FIG. 4 is a perspective view of a catch member and a constricting
member of the positioning unit of FIG. 3, with the catch member at
a non-catching position;
FIG. 5 is a fragmentary sectional perspective view to illustrate
how the positioning unit of FIG. 3 is mounted in a first housing of
the portable computer of FIG. 2;
FIG. 6 is a fragmentary sectional view to illustrate a locking
member when positioned at a disengaging position;
FIG. 7 is a fragmentary sectional view to illustrate the locking
member when positioned at an engaging position; and
FIG. 8 is a fragmentary sectional view to illustrate a retaining
element when engaging first and second housings of the portable
computer.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
FIGS. 2 to 8 illustrate a preferred embodiment of an electronic
device of this invention. As an example, the electronic device is a
portable computer 1 that includes a main body 2, a display module
3, and a positioning unit 4.
The main body 2 includes a first housing 21 with a first rear end
212 and a first side end 213 transverse to the first rear end 212.
The display module 3 includes a second housing 31 with a second
rear end 312 and a second side end 313 transverse to the second
rear end 312. The second rear end 312 is pivoted to the first rear
end 212 via a hinge member (not shown) so as to permit rotation of
the display module 3 about a vertical axis and a horizontal axis
relative to the main body 2. A retaining groove 92 is formed in the
second side end 313 of the second housing 31.
The positioning unit 4 includes: an urging member 63 disposed in
the first housing 21; a catch member 6 mounted movably in the first
housing 21 adjacent to the first side end 213 and the first rear
end 212 of the first housing 21, and having a front end 61 that
defines a gap 62 which has a width that is reducible when the catch
member 6 is moved inwardly of the first housing 21 in a transverse
direction relative to the first side end 213 of the first housing
21 from a non-catching position (see FIG. 6) to a catching position
(see FIG. 7) and that is expandable when the catch member 6 is
moved from the catching position to the non-catching position, the
catch member 6 being further movable inwardly of the first housing
21 from the catching position to an urging position, in which, the
urging member 63 is compressed by the catch member 6 so as to urge
the catch member 6 to return from the urging position to the
non-catching position; a locking member 7 mounted movably on the
first side end 213 of the first housing 21 adjacent to the catch
member 6, and having an engaging end 721 extending into the gap 62
and a retaining element 91 projecting therefrom toward the second
side end 313 of the second housing 31. The locking member 7 is
operable to move the catch member 6 from the non-catching position
to the catching position, and from the catching position to the
urging position. The locking member 7 is movable together with the
catch member 6 in the transverse direction from an engaging
position, in which, the catch member 6 is moved to the catching
position, the engaging end 721 engages the front end 61 of the
catch member 6 by virtue of reduction of the width of the gap 62,
and the retaining element 91 releasably engages the retaining
groove 92 so as to lock the second housing 31 to a disengaging
position, in which, the catch member 6 is moved to the non-catching
position, the engaging end 721 disengages from the front end 61 of
the catch member 6 by virtue of expansion of the width of the gap
62, and the retaining element 91 disengages from the retaining
groove 92 so as to unlock the second housing 31.
A constricting member 8 includes a casing 81 that has a rear closed
end 812 and a front opening 813 opposite to the rear closed end
812. The catch member 6 includes a sliding block 64 that extends
through the front opening 813 and into the casing 81, and a pair of
elastic catching arms 623 that extend outwardly of the casing 81
from the sliding block 64 through the front opening 813 and that
flare from the front opening 813 to define the gap 62. The catching
arms 623 elastically move toward each other so as to reduce the
width of the gap 62 when sliding over a periphery of the front
opening 813 into the casing 81 upon moving the catch member 6 from
the non-catching position to the catching position. The catching
arms 623 have opposing anchored free ends 6231 that engage the
engaging end 721 of the locking member 7 when the catch member 6 is
positioned at the catching position.
The sliding block 64 has a rear end 641 formed with a spring
retaining hole 6411, and a front end 622 opposite to the rear end
641. The urging member 63 is in the form of a coil spring that is
received in the spring retaining hole 6411 and that abuts against
the rear closed end 812 of the casing 81 so as to urge the catch
member 6 to move to the non-catching position when the catch member
6 is positioned at the urging position.
The casing 91 has a top wall formed with a slot 8131. The sliding
block 64 has a guide 621 that protrudes therefrom into the slot
8131 so as to guide movement of the catch member 6 in the
transverse direction.
A mounting seat 5 is mounted securely in the first housing 21 via
screw means (not shown) extending through two cast plates 51 and
the first housing 2, and has two opposing side walls 52, opposing
front end rear top beam 55 interconnecting the side walls 52 and
formed with two opposing front and rear top slits 522, and a front
wall 54 that extends downwardly from the front top beam 55 and that
is formed with a through-hole 521 beneath the front top slit 522
and a notch 523 beneath the through-hole 521. The casing 81 is
mounted securely in the mounting seat 5 below and between the front
end and rear top beams 55. The locking member 7 includes a button
70 mounted exteriorly on the first side end 212 of the first
housing 21, a guide plate 74 that extends from the button 70
through the front and rear top slits 522, and a pressing shaft 72
that extends from the buttons 70 and that has a free end 721' which
defines the engaging end 721 of the locking member 7 and which
extends through an opening 251 in the first side end 213 of the
first housing 21 and the through-hole 521 and into the gap 62 to
abut against the front end 622 of the sliding block 64 so as to
push the catch member 6 to move in the transverse direction. The
guide plate 74 has two opposite sides formed with two opposing
wings 714 that engage a periphery of the front top slit 522 so as
to prevent removal of the locking member 7 from the front and rear
top slits 522 when the locking member 7 moves from the engaging
position to the disengaging position.
The locking member 7 further includes a biasing member 73 that is
in the form of a coil spring and that is sleeved on the pressing
shaft 72 for facilitating movement of the locking member 7 in the
transverse direction.
The locking member 7 further includes a linkage 71 that extends
from the button 70 to the second side end 313 of the second housing
31 in a direction transverse to the guide plate 74. The retaining
element 91 protrudes from the linkage 71 toward the retaining
groove 92. A guide post 713 extends from the button 70 underneath
the guide plate 74 through the notch 523 and into the mounting seat
5.
With the inclusion of the positioning unit 4 in the portable
computer 1, the drawbacks as encountered in the prior art can be
eliminated.
With the invention thus explained, it is apparent that various
modifications and variations can be made without departing from the
spirit of the present invention. It is therefore intended that the
invention be limited only as recited in the appended claims.
* * * * *