JP2004057567A - Slide rail with unlocking function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide rail with unlocking function that can easily unlock a locking mechanism attached to the slide rail. <P>SOLUTION: The slide rail 10 is equipped with a locking mechanism that locks sliding movement and an unlocking plate 20 that unlocks the lock of the locking mechanism 19. A tilted surface 20a that is engaged with a tilted surface 21b formed on the front end of a lock plate 21 is formed on one end of the unlocking plate 20. The other end of the unlocking plate 20 projects from a bearing rail 11 and by pressing this projected part, the tilted surface 21b of the lock plate 21 slides on the tilted surface 20a of the unlocking plate 20 and the lock plate 21 is displaced to unlock the engaged part between an recessed engaging part 21a of the lock plate 21 and the projected engaging part 12a of a middle rail 12. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide rail used for taking in and out of a drawer, a device, and the like from a main body side, and in particular, with a lock mechanism having a lock mechanism for pulling out a drawer, a device, etc. to a predetermined position (full pulling position) and locking at that position. The present invention relates to a slide rail having an unlocking function for releasing the lock.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, slide rails have been used as a guide for drawing out furniture from a furniture main body. There is also known a slide rail in which a lock mechanism for locking the operation of the slide rail is incorporated in order to prevent an unexpected draw-in of the drawer in a state where the drawer is completely drawn. The slide rail includes a fixed rail fixed to the furniture body, a support rail fixed to the drawer, and a retainer arranged between the fixed rail and the support rail while holding a large number of balls. . The lock mechanism includes an engagement protrusion provided on the fixed rail, and a lock plate provided on the support rail and biased by an elastic force to the fixed rail, and a tip inclined surface portion of the lock plate is fixed to the fixed rail. The support rail and the fixed rail are fixed to each other by riding on the provided engaging protrusion and fitting into the engaging concave portion provided on the locking plate. Further, in this type of lock mechanism, the drawer can be pulled out together with the support rail by pulling out the drawer after releasing the lock.
[0003]
When unlocking the lock mechanism in the slide rail with the lock mechanism having the above-described conventional configuration, it is necessary to release the lock by pushing the lock plate by, for example, inserting a hand into the drawer or the inside of the device to release the lock. There have been problems such as difficulty and stains on workers' hands and clothes. In particular, in the case of being used for a drawer provided at the bottom of the kitchen, it is more difficult to release the kitchen.
[0004]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and an object of the present invention is to provide a slide rail with a lock release function that can easily release a lock of a lock mechanism attached to the slide rail.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 includes a slide rail including a fixed rail, a support rail, and a retainer arranged while holding a large number of balls between the fixed rail and the support rail, An engagement protrusion provided at a longitudinal end of the fixed rail; and a locking plate fixed at the end to the support rail and urged toward the fixed rail by an elastic force. A slide rail provided with a lock mechanism for locking the slide operation of the slide rail by fitting an engagement recess provided in the plate, the lock rail having a lock release plate for unlocking the lock mechanism; Is formed at one end with an inclined surface which engages with an inclined surface formed at the front end of the locking plate, and the other end protrudes from the support rail and presses the protruding portion. Thereby, the inclined surface of the lock release plate slides on the inclined surface of the locking plate to displace the locking plate, thereby releasing the engagement between the engaging recess of the locking mechanism and the engaging protrusion. .
[0006]
As described above, one end is provided with the inclined surface that engages with the inclined surface formed at the front end of the locking plate, and the other end has the unlocking plate that projects from the support rail. The locking plate is displaced simply by pressing the portion to be locked. Due to the displacement of the lock plate, the lock of the lock mechanism and the engagement between the engagement protrusion and the engagement recess are easily released.
[0007]
According to a second aspect of the present invention, in the slide rail with the unlocking function according to the first aspect, an intermediate rail is provided between the fixed rail and the support rail, and the engagement protrusion is provided at a longitudinal end of the intermediate rail. The locking plate is provided to be urged toward the intermediate rail by an elastic force.
[0008]
According to a third aspect of the present invention, in the slide rail with the unlocking function according to the first or second aspect, an unlocking lever for pressing the other end of the unlocking plate protruding from the support rail is provided. And
[0009]
By providing the lock release lever projecting from the support rail of the lock release plate and pressing the other end as described above, the lock of the lock mechanism can be released by a simple operation of operating the lock release lever.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 are views showing the configuration of a slide rail with an unlocking function according to the present invention. FIG. 1 is a front view, and FIG. 2 is a cross-sectional view. As shown in the figure, the slide rail 10 has a support rail 11, an intermediate rail 12 which is disposed on the first holder 15 via a number of balls 14 and faces the support rail 11, and which faces the intermediate rail 12. And a fixed rail 13 arranged via a number of balls 16 held by a second holder 17.
[0011]
For example, when the fixed rail 13 is fixed to a furniture main body (not shown) and the support rail 11 is fixed to both sides of a drawer (not shown), the drawer is pulled out, whereby the support rail 11 is pulled out in the direction of arrow A together with the drawer. The intermediate rail 12 is pulled out. When the support rail 11 and the intermediate rail 12 are completely pulled out, the lock mechanisms 18 and 19 work at the time when the respective rails are pulled out to lock the movement in the arrow B direction.
[0012]
A lock mechanism 18 for preventing the intermediate rail 12 from being accidentally retracted functions by engaging a rotating piece with a protruding portion (not shown) provided on the fixed rail 13. When the support rail 11 is retracted, the lock is released by being restricted by the side wall on which the ball rolling groove of the support rail 11 is provided.
[0013]
FIGS. 3 and 4 show the configuration of the second lock mechanism 19 and its release mechanism. FIG. 3 shows the relationship between the support rail 11, the lock plate 21 and the lock release plate 20 in a state where the second lock mechanism 19 is operated. 4A to 4C are diagrams showing the configuration and operation of the second lock mechanism 19. FIG.
[0014]
The lock release plate 20 is slidably attached to the support rail 11 and urged by a coil spring 22 in the direction of arrow C, and its rear end slightly projects from the end of the support rail 11. The locking plate 21 is made of an elastic metal plate or the like, and one end (rear end) thereof is fixed to the support rail 11 by welding or the like, and the front end is urged toward the inner side of the intermediate rail 12 by elastic force. Have been. An engagement concave portion (engagement opening) 21 a is provided at the tip of the lock plate 21. An engagement protrusion 12a that engages (fits) with the engagement recess 21a is provided at a longitudinal end of the intermediate rail 12.
[0015]
An inclined surface 21 b is formed at the tip of the lock plate 21, and an inclined surface 20 a that is in contact with the inclined surface 21 b of the lock plate 21 is formed at the end of the lock release plate 20. When the support rail 11 is slid with respect to the intermediate rail 12 in the direction of the arrow A, FIG. 4A is reached. When the support rail 11 is further slid, the inclined surface 21b of the locking plate 21 is pushed by the engagement protrusion 12a of the intermediate rail 12. To the side of the support rail 11. When the position shown in FIG. 4B is reached, the locking plate 21 moves in the direction of arrow D, and the engaging recess 21a engages (fits) with the engaging protrusion 12a of the intermediate rail 12, and the support rail 11 is locked to the intermediate rail 12.
[0016]
When the lock plate 21 is slid in the direction of arrow F as shown in FIG. 4C while the support rail 11 is locked to the intermediate rail 12 as shown in FIG. The inclined surface 20a of the lock release plate 20 comes into contact with the inclined surface 21b, the inclined surface 21b of the locking plate 21 slides, moves (displaces) toward the support rail 11 as shown by the arrow E, and engages with the engaging recess 21a. The engagement between the engagement rail 12 and the engagement rail 12 is released, and the lock of the support rail 11 with respect to the intermediate rail 12 is released. Then, by further pulling out the drawer, the drawer is extracted from the furniture body.
[0017]
FIGS. 5A to 5C are diagrams showing the configuration and operation of the first lock mechanism 18. FIG. The first lock mechanism 18 includes a lock fitting 25, and a rear end of the lock fitting 25 is rotatably attached to an end of the intermediate rail 12 by a support shaft 24. On the surface of the fixed rail 13 facing the intermediate rail 12, guide protrusions 23 having inclined surfaces 23a on both sides are provided.
[0018]
The tip end 25a of the lock fitting 25 is formed in a U-shaped cross section. When the intermediate rail 12 is slid in the direction of arrow A from the state of FIG. The lock fitting 25 moves along the inclined surface 23 a of the projection 23, and rotates in the counterclockwise direction about the support shaft 24. Then, at the position shown in FIG. Further, when the intermediate rail 12 is slid in the direction of arrow A and the front end face 25b of the lock fitting 25 exceeds the rear end face 23b of the guide projection 23, as shown in FIG. Move. Thus, even if the intermediate rail 12 is slid in the direction of arrow B, the front end surface 25b of the lock fitting 25 abuts on the rear end surface 23b of the guide projection 23, and the movement of the intermediate rail 12 in the direction of arrow B is prevented (locked). Is done.
[0019]
The lock of the first lock mechanism 18 is performed by sliding the support rail 11 having a substantially U-shaped cross section in the direction of arrow B as shown in FIG. The inclined surfaces 25c formed on both sides of the support rail abut, and the lock fitting 25 rotates counterclockwise about the support shaft 24, so that the lock of the intermediate rail 12 is automatically released, and the support rail 11 and The intermediate rails 12 both slide in the direction of arrow B and are accommodated in the fixed rails 13.
[0020]
As shown in FIG. 1, a stopper 13a formed by bending the end of the fixed rail 13 is formed at the end of the fixed rail 13, and a rubber cushion 26 that is in contact with the stopper 13a is fixed to the end of the intermediate rail 12. I have. Since the end of the intermediate rail 12 contacts the stopper 13a of the fixed rail 13 via the rubber cushion 26, the impact force at the time of contact is reduced. Further, since the end of the support rail 11 abuts against the rubber cushion 26, the impact force at the time when the support rail 11 abuts is reduced.
[0021]
In the slide rail with an unlocking function having the above-described configuration, as shown in FIG. When the end of the lock release plate 20 protruding from the end of the rail 11 is pressed against the elastic force of the coil spring 22 (pressed in the direction of arrow F in FIG. 4C), the second lock mechanism is used as described above. The lock of 19 is released, and the support rail 11 can slide in the direction of arrow B. When the support rail 11 slides in the direction of arrow B, the lock of the first lock mechanism 18 is released as described above, and the intermediate rail 12 can slide in the direction of arrow B.
[0022]
FIG. 6 is a view showing a part of an example in which the slide rail with an unlocking function having the above-described configuration is used for a drawer. The support rail 11 of the slide rail with an unlocking function is fixed to both sides of the drawer 30, and the drawer 30 is attached so as to be able to be pulled out and stored from the main body side. A lock release lever (33) is provided for pressing the end of the lock release plate (20) facing the inner surface of the front panel (31) of the drawer (30). By manually pulling the lock release lever 33 toward the inner surface of the front panel 31 as shown by an arrow G, the lock release lever 33 pivots about the fulcrum 32 and the rear end 20b of the lock release plate 20 is moved. Press in the direction of arrow F. Thus, as described with reference to FIG. 4, the lock of the second lock mechanism is released, and the drawer 30 can be housed in the main body.
[0023]
In the above example, the example in which the slide rail with the unlocking function is used for the drawer is shown. However, the present invention is not limited to the drawer, and can be used as a slide mechanism for taking in and out the device from the main body side. is there.
[0024]
Further, in the above embodiment, the slide rail 10 is configured to include the support rail 11, the intermediate rail 12, and the fixed rail 13, but the slide rail 10 includes only the support rail 11 and the fixed rail 13. May be. In this case, although not shown, the engaging projection of the second lock mechanism 19 is provided at the longitudinal end of the fixed rail 13, and the end of the locking plate 21 is fixed to the support rail 11 and fixed. The slide operation of the slide rail is locked by being urged by the elastic force to the rail 13 side and engaging the engagement protrusion of the fixed rail 13 with the engagement recess provided in the lock plate 21. The engagement protrusion of the second lock mechanism 19 protrudes from the end of the support rail 11 and presses the lock release plate 20 so that the inclined surface 20 a of the lock release plate 20 slides on the inclined surface 21 b of the lock plate 21. As a result, the locking plate 21 is displaced, so that the engagement between the engagement recess and the engagement projection of the second lock mechanism 19 is released.
[0025]
【The invention's effect】
As described above, according to the invention described in each claim, the following excellent effects can be obtained.
[0026]
According to the first or second aspect of the present invention, one end is provided with an inclined surface that engages with an inclined surface formed at the front end of the locking plate, and the other end has the unlocking plate that projects from the support rail. It is possible to provide a slide rail with a lock release function that can easily release the lock of the lock mechanism simply by pressing a portion of the lock release plate protruding from the support rail.
[0027]
According to the third aspect of the present invention, by providing the lock release lever protruding from the support rail of the lock release plate and pressing the other end, the lock of the lock mechanism can be locked by a simple operation of operating the lock release lever. A slide rail with an unlocking function that can be unlocked can be provided.
[Brief description of the drawings]
FIG. 1 is a front view showing a configuration of a slide rail with an unlocking function according to the present invention.
FIG. 2 is a cross-sectional view showing a configuration of a slide rail with an unlocking function according to the present invention.
FIG. 3 is a view showing a configuration of a second lock mechanism of the slide rail with an unlocking function according to the present invention.
FIG. 4 is a view showing the configuration and operation of a second lock mechanism of the slide rail with an unlocking function according to the present invention.
FIG. 5 is a view showing the configuration and operation of a first lock mechanism of the slide rail with an unlocking function according to the present invention.
FIG. 6 is a view showing a part of an example in which a slide rail with an unlocking function according to the present invention is used for a drawer;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Slide rail 11 Support rail 12 Intermediate rail 13 Fixed rail 14 Ball 15 First retainer 16 Ball 17 Second retainer 18 First lock mechanism 19 Second lock mechanism 20 Lock release plate 21 Lock plate 22 Coil spring 23 Guide projection 24 Support shaft 25 Lock fitting 26 Rubber cushion 30 Drawer 31 Front panel 32 Support point 33 Lock release lever

Claims (3)

A fixed rail, a support rail, and a slide rail composed of a retainer arranged while holding a number of balls between the fixed rail and the support rail,
An engagement protrusion provided at a longitudinal end of the fixed rail, and a locking plate having an end fixed to the support rail and urged toward the fixed rail by an elastic force; A slide rail having a lock mechanism that locks a slide operation of the slide rail by fitting a projection and an engagement recess provided in the lock plate,
A lock release plate for releasing the lock of the lock mechanism, the lock release plate having an inclined surface formed at one end to be engaged with an inclined surface formed at a front end of the locking plate, and the other end having the support rail. The lock plate is displaced by sliding the inclined surface of the lock release plate on the inclined surface of the lock plate by pushing the projected portion from the lock plate. A slide rail with an unlocking function, wherein the fitting of the projection is released. The slide rail with an unlocking function according to claim 1, further comprising an intermediate rail between the fixed rail and the support rail, wherein the engagement protrusion is provided at a longitudinal end of the intermediate rail, and the locking plate is A slide rail with an unlocking function, which is urged toward the intermediate rail by an elastic force. The slide rail with an unlocking function according to claim 1 or 2,
A slide rail with an unlocking function, wherein an unlocking lever for pressing the other end of the unlocking plate protruding from the support rail is provided.

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