U.S. patent application number 10/853410 was filed with the patent office on 2005-11-10 for stop retainer assembly for full-open drawer slide track.
This patent application is currently assigned to Nan Juen International Co., Ltd.. Invention is credited to Huang, Kuo-Sheng.
Application Number | 20050248247 10/853410 |
Document ID | / |
Family ID | 35238831 |
Filed Date | 2005-11-10 |
United States Patent
Application |
20050248247 |
Kind Code |
A1 |
Huang, Kuo-Sheng |
November 10, 2005 |
Stop retainer assembly for full-open drawer slide track
Abstract
A stop assembly for the full-open drawer slide track consists of
at least a projected tenon stamped formed at the end of the
intermediate slide track and a stop retainer and a stop releaser
mounted on the extension slide track in which the stop retainer and
the stop releaser are under the compression spring to maintain in
the normal operation condition. The stop retainer has a mitered
guide to lead the projected tenon skidding into the slot under the
stop retainer. While the extension slide track is being pulled
outward, the mitered guide of the stop retainer will lead the
projected tenon of the intermediate slide track into the slot of
the stop retainer and the drawer will completely stop therein
without further an outward over slide. This is a safety protection
design for the drawer.
Inventors: |
Huang, Kuo-Sheng; (Ying Ghor
Town, TW) |
Correspondence
Address: |
TROXELL LAW OFFICE PLLC
Suite 1404
5205 Leesburg Pike
Falls Church
VA
22041
US
|
Assignee: |
Nan Juen International Co.,
Ltd.
|
Family ID: |
35238831 |
Appl. No.: |
10/853410 |
Filed: |
May 26, 2004 |
Current U.S.
Class: |
312/334.47 |
Current CPC
Class: |
A47B 2210/0037 20130101;
A47B 88/57 20170101; A47B 2210/0059 20130101 |
Class at
Publication: |
312/334.47 |
International
Class: |
A47B 088/00 |
Foreign Application Data
Date |
Code |
Application Number |
May 7, 2004 |
TW |
93207088 |
Claims
What the invention claimed is:
1. A novel stop retainer assembly for the full open drawer slide
track mainly comprises a projected tenon stamp-formed on the
intermediate slide track and a stop retainer and stop releaser
mounted on the extension slide track; the stop retainer has a
conical point rod at the rear end linking with a bevel, an elastic
retaining plate which forms inward slot and a miter slope to guide
the projected tenon into the proper lock position; when the
extension slide track is being pulled out, the bevel will lead the
projected tenon sliding under the pressure to the slot without
jumping and displacement; the projected tenon will be guided by the
bevel into the proper position formed by the mitered slope and the
slot; the stop releaser constitutes a releaser, a pressure spring
exerting pressure on the releaser, a spring puller at the far end
of the extension slide track and a pushing rod; the releaser has a
mitered guide contacting with front end of the stop retainer; when
the spring puller is being pulled outward, the releaser is being
pushed outward working as a lever at the miter guide to free the
projected tenon form the slot of the stop retainer, permitting the
drawer to be pushed to the closing position.
2. The stop retainer assembly as claimed in the claim 1 in which
the front point of the stop retainer is mounted on the extension
slide track under a pressure exerted by a pressure spring so as to
keep the bevel of the conical point rod always closely contacting
the side wall of the extension slide track to guide the projected
tenon sliding under pressure.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] This invention relates to the stop retainer assembly, in
particular for the full-open drawer slide track.
[0003] 2. Description of the Related Art
[0004] As shown in FIG. 1, the full-open drawer slide track is
mainly composed of a main slide track 1', an intermediate slide
track 2' and an extension slide track 3' where the extension slide
track 3' carries the total weight of the drawer compartment. When
the drawer is being pulled outward, the intermediate slide track 2'
moves on the main slide track 1' and the extension slide track 3'
extends out of the intermediate slide track, letting the drawer
fully opened.
[0005] In general, the full-open drawer is usually applied to
storing the modular components easy for the performance of
maintenance. The main board of the server is stored in the full
open drawer in an attempt for easy access of inspection and
maintenance. However, the drawer slide track must be provided a
safety stop to prevent the drawer from being pulled off the slide
track which may render serious damage to the equipment stored in
the drawer compartment.
[0006] FIG. 2 shows the schematic diagram of the stop retainer
commonly employed in the full open drawer in which the stop
retainer 21' is mounted on the intermediate slide track 2' and a
pivot stop 31' installed on the extension slide track 3' to achieve
stopping the drawer from being pulled off. The stop retainer 21'
has two ears 211' on the end rim and the pivot stop 31' has two
bevels 311' at both end tips. The extension slide track 3' also has
a check point 32' to limit the pivot angle of the pivot stop 311'
between the side wall 33' and the check point 32'.
[0007] When the extension slide rack 3' is idle, the gravity weight
of the pivot stop 31' will sustain at normal condition keeping two
bevels 311' close contacts with the side walls 33' of the extension
slide track 3'. When the drawer is being pulled outward, the bevel
311' of the pivot stop 31' is approaching the ear 211', the pivot
stop 31' will change the angle and the bevels 311' will move in a
straight line along the ear 211' till the pivot stop 31' enters
into the space between two ears 211'. At this moment, the pivot
stop 31' is free to recover to the normal gravity position with two
bevels 311' being restrained on the side walls 33' of the extension
slide track 3' with one bevel 311' contacting to the side wall 33'
and other bevel 311' being stopped by the ear 211'. As shown in
FIG. 3, the pivot stop 31' is caught in the space between two ears
211' of the stop retainer; the extension slide track 3' is trapped
with no further movement. This is a safety protection device.
[0008] To release the stop retainer 21', a stop releaser (not
shown) is employed by pushing the extension slide track 3' inward a
little bit to free the bevel 311' from the trap of the ear 211' of
the stop retainer 21' and the pivot stop 31' will return to the
normal gravity condition (as shown in FIG. 4), leaving the
restrained space formed between two ears 211' and backward to the
closing position.
[0009] Unfortunately such a stop retainer where the pivot stop 31'
with two bevels 311' is designed to be trapped in the space between
two ears 211' of the stop retainer 21' is not considerably
reliable. In the real practice, it is more than often found that
there is an inertial existing on the slide track while the drawer
is being pulled outward with a strong force, and the outward speed
suppresses the swing of the bevels 311' continuing to contact the
side walls 33' and the bevels 311' of pivot stop 31' will pass the
ears 211' of the stop retainer 21' without being trapped, and
eventually the drawer will fall off the slide track. This risk may
cause not only the material damage, but also personal injury.
SUMMARY OF THE INVENTION
[0010] The inventor knows well the pitfalls of the prior art of
stop retainer for the full open drawer slide track and has devoted
great effort to improving the weak point of the prior art and
finally come up this novel stop retainer for the full open drawer
slide track.
[0011] The technology this invention applies is a projected tenon
stamp-formed on the end of the intermediate slide track. The
extension slide track has the stop retainer and the stop releaser
where the stop retainer is always under the pressure of a spring so
as to maintain a down swing position. The guide bevel of the stop
retainer is to lead the projected tenon entering the slot and the
mitered slope is to guide the projected tenon into the proper
position in the slot under the stop retainer. Before approaching
the slot, the projected tenon is always under spring pressure,
there never happens the inertial force which may derail the
displacement of the projected tenon. The mitered slope will
regulate the projected tenon entering the proper position in the
slot under constant pressure exerted by the spring, there is no
chance for the inertial force to take place and the stop retainer
will never fail to trap the projected tenon. This design assures
the safety protection which is the major object of this
invention.
[0012] To release the projected tenon from the stop retainer is
simply to lever the stop retainer or the push the stop releaser,
the projected tenon will disengage the slot through the miter
slope, so the extension slide track is allowed to push backward to
the closing position. This is the best design for the full open
drawer slide track.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] FIG. 1 shows the prior art of the stop retainer of the full
open drawer slide track.
[0014] FIG. 2 shows the assembly of prior art of stop retainer.
[0015] FIG. 3 shows the trap of the prior art of the stop retainer
when the drawer is pulled open.
[0016] FIG. 4 shows the release of the trap the prior art of the
stop retainer when the drawer is pulled open.
[0017] FIG. 5 shows the disassembly of stop retainer of this
invention.
[0018] FIG. 6 shows the outlook of the stop retainer assembly of
his invention.
[0019] FIG. 7 shows the assembly of the stop retainer of this
invention.
[0020] FIG. 8 shows the stop retainer action when the drawer is
fully opened.
[0021] FIG. 9 shows the stop retainer is released from trap.
DETAILED DESCRIPTION OF THE INVENTION
[0022] Please refer to FIGS. 5 and 7; the full open drawer slide
track of this invention comprises a main slide track 1, an
intermediate slide track 2 and an extension slide track 3. The stop
retainer assembly consists of a projected tenon 22 stamp-formed at
the end of the intermediate slide track 2 and the stop retainer 34
and the stop releaser 35 on the extension slide track 3.
[0023] As shown in FIG. 8, the stop retainer 34 has a conical point
rod 341, linking with a bevel 342, an elastic retaining plate 343
which forms inward slot 344 and a miter slope 345 to guide the
projected tenon 22 into the proper lock position.
[0024] As shown in FIG. 9, the stop retainer 34 is mounted on the
extension slide track 3 under constant pressure applied by a
pressure spring 346 from the top side. The pressure spring 346
always keeps the bevel 342 of the conical point rod 341 facing down
to the side wall 33 of the extension slide track 3.
[0025] As shown in FIGS. 7 and 8, when the extension slide track 3
is being pulled outward, the bevel 342 of the stop retainer 34 will
lead and press the projected tenon 22 of the intermediate slide
track 2. Before approaching the slot 344, the projected tenon 22 is
always under a constant pressure exerted by the pressure spring
346, no chance for the stop retainer 34 to jump up due to the
inertial force created by pulling the drawer. The projected tenon
22 guided by the elastic plate 343 will slide the slot 344 along
the mitered slope 345 to fix at the proper position, so the
extension slide track stops 3 therein. This stop retainer assembly
eliminates the inertial force created by pulling the extension
slide track 3. It is really the best design which has ever
seen.
[0026] Please refer to FIGS. 7 and 8, the stop releaser 35 is
composed of the releaser 351, a pressure spring 352 applying the
pressure on the releaser 351, a spring puller 353 at the far end of
the extension slide track 3 and a pushing rod 354. The releaser 351
has a mitered guide 355 contacting with front end of the stop
retainer 34.
[0027] To release the extension slide rack 3 from the trap, just
pull the conical point rod 341 backward so the slot 344 and the
miter slope 345 of the stop retainer 34 will disengage the
projected tenon 22, so the extension slide track 3 is free to be
pushed backward to the closing position. Or as shown in FIG. 9,
pushing the pushing rod 354 outward and the spring puller 353 will
lead the releaser 351 moving outward, the mitered guide 355 works
as a lever to lift the front end of the stop retainer 34, so the
projected tenon 22 is freed from the slot 344 and the mitered slope
345. The extension slide track 3 can be pushed backward to the
closing position.
[0028] The above statement proves that the stop retainer assembly
is the best design to stop the drawer from being pulled off the
slide track of the full open drawer.
* * * * *