JP2006149705A - Slide rail stopper device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide rail stopper device with a simple structure and excellent operability, capable of being inexpensively manufactured. <P>SOLUTION: The slide rail stopper device stops sliding of a movable side member in the direction of drawing by making a stopper projection disposed in a fixed side member or in an intermediate member abut on the stopper surface of a stopper member disposed on the movable side member. The stopper projection has a storage side end face as a convex abutting face by swelling a base board front end of the fixed side member or intermediate member toward the movable side member, and the stopper surface of the stopper member is formed in a convex shape corresponding to the convex abutting face. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  In the present invention, the stopper projection of the stopper member provided on the movable member and the stopper protrusion provided on the fixed member or the intermediate member abut on each other, and the sliding of the movable member in the pulling direction stops, and the moving side After the member is pulled out most from the fixed member or intermediate member, move the stopper surface of the stopper member to the moving member side to release the contact state between the stopper protrusion and stopper surface, and move The present invention relates to a slide rail stopper device in which a side member can be extracted from a fixed member or an intermediate member.

Conventionally, the stopper protrusion of the stopper device is configured by fixing a small rectangular parallelepiped iron block to the inner surface of the stationary member or intermediate member by welding or the like separately from the stationary member or intermediate member substrate. The end surface (stopper surface) of the stopper hole of the stopper member is brought into contact with the end surface on the storage side of the protrusion. (For example, refer to Patent Document 1.)
In this case, the construction of the stopper projection requires a number of steps such as welding and finishing, which is expensive. In order to solve this problem, there has been provided a structure in which a stopper projection (locking portion) is integrally formed by expanding a substrate of a holding rail. (For example, refer to Patent Document 2.)

In this case, as shown in FIGS. 6 and 7, the end surface (stopper surface) 1a of the locking hole 4a of the spring stopper 6a abuts on the storage-side end surface 2b of the stopper projection (locking portion) 3a, so that the moving member 3f stops, but the end surface (stopper surface) 1a of the locking hole 4a is formed in a simple rectangular shape, so the storage-side end surface 2b of the stopper projection (locking portion) 3a and the end surface (stopper) of the locking hole 4a The contact area 3c of the surface 1a is shown as a hatched portion in FIG.
That is, when the collision between the storage-side end surface 2b of the stopper projection (locking portion) 3a and the end surface (stopper surface) 1a of the locking hole 4a is repeated over a long period of time, the spring stopper 6a has the stopper projection (locking portion). Since the contact area 3c is made of a material harder than 3a (stainless leaf spring material), the end surface 1a of the locking hole 4a gradually bites into the storage side end surface 2b of the stopper projection (locking portion) 3a. It becomes a state. (The state shown in FIG. 6)
Then, even if the contact state between the end surface 1a of the locking hole 4a and the storage-side end surface 2b of the stopper projection (locking portion) 3a is released and the moving member 3f is to be extracted, the end surface 1a of the locking hole 4a The contact state of the stopper projection (lock portion) 3a with the storage-side end surface 2b could not be smoothly released by biting.

Japanese Utility Model Publication No. 63-13725 JP 2004-275426 A

As described above, if the stopper protrusion is constructed by welding an iron ingot or the like, the contact area between the end surface (stopper surface) of the locking hole and the storage-side end surface of the stopper protrusion is increased, so the end surface of the locking hole (stopper) However, there is a problem in that the stopper state can be smoothly released, but the work such as welding and finishing is necessary and expensive. On the other hand, if the stopper projection (locking portion) is formed by expanding the substrate, it can be manufactured at a low cost, but as described above, the storage side end surface of the stopper projection (locking portion) of the end surface 1a of the locking hole 4a. There was a problem that biting into 2b occurred and operability deteriorated.
An object of the present invention is to provide a slide rail stopper device that has a simple structure, can be manufactured at low cost, and is excellent in operability.

  Therefore, in order to solve the above problems, the present invention is configured as the first means in which the stopper protrusion provided on the fixed member or intermediate member and the stopper surface of the stopper member provided on the moving member abut. Thus, after the sliding of the moving member stops in the pulling direction and the moving member is pulled out most from the fixed member or the intermediate member, the stopper surface of the stopper member is shifted to the moving member side. In the slide rail stopper device in which the contact state between the stopper protrusion and the stopper surface is released and the moving member can be pulled out from the fixed member or intermediate member, the stopper protrusion is the same as that of the fixed member or intermediate member. The front end of the board bulges toward the moving member, and the storage-side end surface Together form a Jo abutment surface, the stopper surface of the stopper member is one which is formed in a convex shape corresponding to the convex abutment surface.

According to the first aspect of the present invention, the stopper projection is easy to process because the front end of the substrate of the fixed member or the intermediate member bulges toward the moving member, and the storage side end surface is a convex contact surface. Can be manufactured inexpensively.
The stopper surface of the stopper member is formed in a convex shape corresponding to the convex contact surface, so that the contact area of the stopper surface with respect to the contact surface increases, preventing the stopper surface from biting into the stopper projection. It is easy to operate.

  The stopper protrusion on the intermediate member and the stopper surface of the stopper member on the moving member come into contact with each other, the sliding of the moving member in the pulling direction stops, and the moving member is pulled out from the intermediate member most. The slide rail that allows the moving member to be removed from the intermediate member by shifting the stopper surface of the stopper member to the moving member side after releasing the contact state between the stopper protrusion and the stopper surface. In this stopper device, the stopper protrusion bulges the front end of the intermediate member toward the moving member, and the storage-side end surface becomes a convex contact surface, and the stopper surface of the stopper member is a convex contact surface. It is formed in a convex shape corresponding to the contact surface.

Embodiments will be described below with reference to the drawings.
1 to 3, reference numeral 100 denotes a slide rail. The slide rail 100 includes a fixed member 1, an intermediate member 2 that is slidably held by the fixed member 1, and a ball retainer 4 on the intermediate member 2. It is comprised from the movement side member 3 hold | maintained slidably via the ball | bowl 44 ... rotatably hold | maintained by this.

That is, the fixed side member 1 is formed into a channel shape by the base plate 10 and the upper and lower bent edges 11, 11, and rotates to a synthetic resin retainer 12, which is approximately half the length of the fixed side member 1. The intermediate member 2 is slidably held via a plurality of balls 13 which are held freely and are positioned between the inner surfaces of the upper and lower bent edges 11 and 11 and the outer surface of the intermediate member 2.
A stopper (not shown) for storing the intermediate member 2 is formed at the rear end portion of the substrate 10 of the stationary member 1, and the movement range of the retainer 12 in the pulling direction is formed at the front end portion of the substrate 10. A retainer pre-retainer (not shown) that restricts the movement is formed.

The intermediate member 2 is substantially the same length as the fixed member 1 and is formed in a substantially channel shape in the same direction as the fixed member 1 from the base plate 20 and the upper and lower bent edges 21 and 21, and the outer surface of the upper and lower bent edges 21 and 21. The balls 13 ... roll, and the balls 44 ... roll on the inner surfaces of the upper and lower bent edges 21, 21. Further, at the rear end portions of the upper and lower bent edges 21, 21, the front end is located at the rear end of the retainer 12 that is in contact with the retainer front stopper (not shown) of the fixed side member 1 when the intermediate member 2 is fully pulled out. The stoppers 5 are formed on the front end portion of the substrate 20, and a post-retainer stopper (not shown) that restricts the maximum pull-out amount of the intermediate member 2 is formed.
The stopper projection 5 is formed by bulging a part of the front end of the substrate 20 toward the moving member 3 side, and has a convex contact surface 51 on the storage side end surface.
Reference numeral 50 denotes a synthetic resin guide member attached to the front end portion of the intermediate member 2.

  The guide member 50 is located at the front end portion of the substrate 20 of the intermediate member 2, has a front side portion with an inclined guide portion 521 whose thickness increases sequentially from the front end portion in the storing direction, and a ball retainer at the rear end portion. 4 is attached to the mounting board 52 having the retainer holding part 522 for holding the front end portion 4 and the upper and lower ends of the mounting board 52, and the upper and lower bent edges 21, 21, 31, 31 of the intermediate member 2 and the moving side member 3. The upper and lower bent edges of the intermediate member 2 are formed by guide protrusions 53 and 53 positioned between them and fitting protrusions 54 and 54 integrally formed protruding outward at the center of the upper ends of the guide protrusions 53 and 53. The intermediate member 2 is attached to the front end portion of the intermediate member 2 with the fitting protrusions 54 and 54 fitted in the fitting holes 211 and 211 formed at the front end portions of the front and rear portions 21 and 21.

The ball retainer 4 is a belt-shaped metal plate that is approximately half the length of the intermediate member 2, and a U-shaped substrate 40 sized to be inserted between the substrate 20 of the intermediate member 2 and the substrate 30 of the moving member 3. The U-shaped substrate 40 protrudes in an L-shape from both ends thereof, and has a substantially cross-sectional shape from upper and lower protruding edges 41, 41 positioned between the upper and lower bent edges 21, 21, 31, 31 of the intermediate member 2 and the moving member 3. A plurality of balls 44 are rotatably held in the sliding direction of the upper and lower protruding edges 41, 41.
Then, the U-shaped substrate 40 is elastically fitted and held in the retainer holding portion 522 of the guide member 50 in a state where the moving side member 3 has reached the maximum drawing position.

The moving side member 3 is formed substantially the same length as the fixed side member 1 and the intermediate member 2, and is slidably held by the intermediate member 2 via balls 44 held by the ball retainer 4, and is made of metal. It is formed in a substantially C-shaped cross section from upper and lower bent edges 31 and 31 and a substrate 30 formed by bending both short ends of the strip plate in an outward arc shape.
The stopper member 6 is provided at a predetermined position on the inner surface of the substrate 30, and the stopper protrusion 5 is engaged with the locking hole 63 of the stopper member 6, so that the moving side member 3 stops at the maximum drawing position with respect to the intermediate member 2. After that, by releasing the contact state of the stopper member 6, the stopper member 6 can be extracted and attached from the intermediate member 2.

As shown in FIGS. 1 and 2, the stopper member 6 is formed integrally with a mounting plate 61 and a stainless plate spring material, which is harder than the material of the moving member 3 than the elastic transition portion 62, in a generally square shape. .
Further, the mounting board 61 protrudes integrally from the upper and lower front and rear end portions thereof, and is engaged with the engaging protrusions 611... That are engaged with the inner surfaces of the upper and lower bent edges 31, 31 of the moving side member 3. Is formed at the center.
On the other hand, the stopper member 6 moves in the storing direction in contact with the fitting protrusion 301 fitted in the fitting hole 60 and the accommodation side end of the mounting substrate 61 on the substrate 30 of the moving member 3. A movement restricting protrusion 302 is formed to prevent this.

The elastic transition portion 62 has a stopper surface 64 that contacts the contact surface 51 on the storage side of the stopper protrusion 5 of the intermediate member 2 when the movable member 3 is pulled out to a predetermined position with respect to the intermediate member 2. A locking hole 63 at the end is formed.
When the stopper surface 64 abuts on the convex abutment surface 51 as shown in FIG. 5, the abutment area (hatched portion in FIG. 5) 64a is maximized. It is formed in a convex shape corresponding to the shape.
Reference numeral 65 projects from the end surface on the drawer side of the locking hole 63 in an inclined manner toward the storage side in the direction of the substrate 30 of the moving member 3, and when the moving member 3 is stored in the intermediate member 2, the stopper protrusion 5 is pulled out. A storage guide protrusion that contacts the side end surface and elastically shifts the elastic transition portion 62 toward the substrate 30 of the movable member 3 is shown. Reference numeral 36 denotes the storage guide protrusion 65 of the storage guide protrusion 65 when the elastic transition portion 62 is elastically shifted. An escape hole is shown.

  That is, from the state shown in FIG. 4 (the state in which the movable member 3 is most pulled out from the intermediate member 2, the state in which the stopper surface 64 of the stopper member 6 is in contact with the contact surface 51 of the stopper protrusion 5). When extracting 3, the tip of the driver 26 is pushed through the operation hole 25 provided on the storage side of the stopper projection 5, and the elastic transition portion 62 of the stopper member 6 is moved to the substrate 30 side of the movable member 3. Then, the storage guide protrusion 65 is positioned in the escape hole 36, the contact state of the storage side contact surface 51 and the stopper surface 64 of the stopper projection 5 is released, and the moving side member 3 is maintained while maintaining this state. Is extracted from the intermediate member 2.

In the embodiment, the description has been given of the case of the slide rail 100 in which the intermediate member 2 is slidably held by the fixed member 1 and the movable member 3 is slidably held by the intermediate member 2. In the case of a slide rail in which the movable member 3 is slidably held on the side member 1, a stopper projection 6 may be provided at the front end of the fixed side rail 1.
At this time, in a state where the moving side member 3 is most pulled out from the fixed side member 1, the tip of the stopper member 6 protrudes forward from the front end of the fixed side member 1, and by operating this protruding portion with a fingertip, The moving member 3 is extracted from the fixed member 1.

The principal part perspective view of the slide rail which comprised this invention Perspective view of stopper member Main section enlarged view of slide rail Main part sectional view of the present invention Enlarged view of the stopper surface Sectional view of the main part of a conventional embodiment Enlarged view of the conventional stopper surface

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixed side member 100 Slide rail 2 Intermediate member 3 Moving side member 5 Stopper protrusion 51 Contact surface 6 Stopper member 64 Stopper surface

Claims (1)

The stopper projection on the fixed member or intermediate member and the stopper surface of the stopper member on the moving member come into contact with each other, so that the sliding of the moving member in the pulling direction stops and the moving member is fixed. After being pulled out most from the side member or intermediate member, the stopper surface of the stopper member is moved to the moving member side, the contact state between the stopper protrusion and the stopper surface is released, and the moving member is fixed. In the slide rail stopper device that can be pulled out from the side member or the intermediate member, the stopper protrusion bulges the front end of the substrate of the fixed member or intermediate member toward the moving member, and the storage side end surface comes into convex contact The stopper surface of the stopper member is opposite to the convex contact surface. Stopper device of the slide rail, characterized in that it is formed in a convex shape to.

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