JP3901415B2 - Slide rail - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a slide rail used in drawers such as drawers, cassettes, and the like that are detachably attached to an apparatus main body by a copying machine, a printer, a facsimile machine, and the like, and a drawer such as a cabinet.
[0002]
[Prior art]
A conventional slide rail of this type is constructed by incorporating a retainer with rolling elements between an outer rail and an inner rail. As this type of slide rail, for example, JP-A-7-83229, JP-A-9-196061, JP-A-9-36557, JP-A-9-252862, JP-A-9-252863, There are numerous disclosures such as Japanese Utility Model Publication No. 7-13423, Japanese Utility Model Publication No. 6-24542, Japanese Utility Model Application Publication No. 7-10551, Japanese Utility Model Registration No. 2541480, Japanese Utility Model Registration No. 2552124.
[0003]
A retainer used for such a conventional slide rail is provided with a large number of balls incorporated therein so that the inner rail can be smoothly slid between both edges of the outer rail by the large number of balls. Such a retainer forms a steel material into a cross-sectional arc shape and forms a large number of pockets for receiving balls on both edges thereof.
[0004]
[Problems to be solved by the invention]
For this reason, the conventional slide rail has high accuracy with almost no backlash, but has a large disadvantage that the number of parts and the manufacturing process are high, the cost is high, and the assembly work is very troublesome.
[0005]
Accordingly, an object of the present invention is to provide a slide rail that has a simple structure, is excellent in productivity, can be manufactured at low cost, and is easy to mount.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a slide rail according to claim 1 of the present invention comprises an outer rail and an inner rail that is detachably assembled by sliding between both inner edges of the outer rail. A large diameter roller attached to fit between both inner edges of the outer rail, and a pair of small diameter rollers attached to the outer rail so as to sandwich both edges of the inner rail from the outside. Is provided on the tip side of the inner rail in a direction in which the inner rail is inserted between both inner edges of the outer rail, and the small diameter roller pulls out the inner rail from between the inner edges of the outer rail. It is characterized in that it is provided on the tip side of the outer rail in the direction.
[0007]
In order to achieve the above object, the invention according to claim 2 includes an outer rail and an inner rail that is detachably assembled by sliding between both inner edges of the outer rail, and the outer rail is connected to the inner rail. A large-diameter roller attached so as to fit between both inner edges, and a small-diameter roller attached to the outer rail so as to fit between both inner edges of the inner rail. The inner rail is provided on the tip side of the inner rail in a direction in which the inner rail is inserted between both inner edges, and the small diameter roller is formed in the direction in which the inner rail is removed from between the inner edges of the outer rail. It is provided in the front end side of this.
[0008]
According to the third aspect of the present invention, in order to achieve the above object, a side where the inner rail is combined with a tip side of the outer rail in a direction in which the inner rail is further removed from a portion where the small diameter roller is provided. And an abutting stopper for preventing the inner rail from coming off.
[0009]
According to the fourth aspect of the present invention, in order to achieve the above object, an opening is provided on the tip side of the outer rail in a direction in which the inner rail is inserted, and the tip of the inner rail is provided in the opening. It is characterized in that a fitting stopper for determining the innermost insertion position of the inner rail into the outer rail is attached.
[0010]
In order to achieve the above object, the invention according to claim 5 is characterized in that the tip end side is tapered in the insertion direction of the inner rail into the outer rail, and both outer edges of the tapered portion are waved, and the fitting is performed. The stopper can be snap-fitted to the tip side portion of the inner rail.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
1 is an exploded perspective view showing a first embodiment of a slide rail according to the present invention, and FIG. 2 is a front view (A) in an assembled state, a cross-sectional view on the left side (B), and a cross-sectional view on the right side (C). is there. In the figure, 1 is an outer rail, 2 is an inner rail, the outer rail 1 is fixed in a casing of a copying machine or the like to which this slide rail is attached, and the inner rail 2 is slid along the outer rail 1 so that it can be inserted and removed. .
[0012]
The outer rail 1 is curved so that both end edges 3 and 3 of a strip-shaped metal plate or the like are projected outward in an arc shape, V shape, C shape or the like in the same direction, and along the longitudinal direction. Two opposing groove-like portions are formed. Also, overhanging portions 4 and 4 on a substantially semicircle are formed at one end, and pin holes 5 and 5 are opened therein, respectively. At the end where the overhanging portions 4 and 4 are formed, a portion with a slightly narrow width is bent in the same direction as the end edge 3 to provide a stopper 6 for the inner rail 2.
[0013]
Furthermore, the outer rail 1 is punched at a plurality of locations (two locations in the figure), and the punched portion is bent as it is or in the direction opposite to the edge portion 3 to fix it to a housing such as a copying machine. 7 Furthermore, a rectangular hole 8 is opened at the other end so that a fitting stopper 9 described later can be attached and detached.
[0014]
The inner rail 2 is also curved so that both end edges 10 and 10 of a strip-shaped metal plate or the like are projected outward in an arc shape, V shape, C shape or the like in the same direction, along the longitudinal direction. Two opposing groove-like portions are formed. Further, the end portion on one side is formed so as to be slightly tapered by removing the end edge portion 10. The tapered portion 11 is formed by corrugating both edges, and a pin hole 12 is provided near the base end. Furthermore, a stopper piece 13 that can be abutted against the retaining stopper 6 of the outer rail 1 by punching out the central portion of the middle portion of the portion having the edge portion 10 and bending it in the same direction as the edge 10.
[0015]
Then, hook-shaped rollers 15 and 15 are attached to the pin holes 5 and 5 of the protruding portions 4 and 4 of the outer rail 1 by the pin shafts 14 and 14. As can be seen from FIG. 2 (C), the roller 15 is formed such that the center side is recessed in a V shape or the like, and the edge of the end edge portion 10 of the inner rail 2 can be received in this recess. Further, a medium-high roller 17 is attached to the pin hole 12 of the tapered portion 11 of the inner rail 2 by a pin shaft 16. As can be seen from FIG. 2 (B), the roller 17 is formed in a V shape so that the center portion protrudes most, and can be fitted inside the end edge 3 of the outer rail 1. is there.
[0016]
Further, a fitting stopper 9 is attached to the rectangular hole 8 of the outer rail 1. The fitting stopper 9 has a pair of fitting legs 18 and 18 for fitting the tapered portion 11 of the inner rail 2 by snap fitting, and a leg for fitting the hole 8 by snap fitting. 19 and 19. The outer shapes of the fitting legs 18 and 18 are shapes corresponding to the corrugated shape of the edge of the tapered portion 11 of the inner rail 2, respectively.
[0017]
In order to combine the outer rail 1 and the inner rail 2 having the above-described configuration, the fixing piece 7 of the outer rail 1 to which the roller 15 is attached by the pin shaft 14 is attached to the housing of the device with a screw or the like, and the pin shaft 16 The inner rail 2 to which the roller 17 is attached is inserted into the outer rail 1 from the side where the hole 8 of the outer rail 1 is provided until the stopper piece 13 comes into contact with the stopper stopper 6 as shown by the arrow X in the figure. After that, it is only necessary to fit the fitting stopper 9 into the hole 8 so that the leg 19 is caught on the edge of the hole 8. Thereby, the combined state shown in FIG. 2 is obtained. When removing the inner rail 2 from the outer rail 1, the reverse process is performed. In addition, if the length of the fitting legs 18 and 18 of the fitting stopper 9 is changed, the fitting position of the tapered portion 11 of the inner rail 2 can be changed.
[0018]
In the combined state, one end side of the inner rail 2 is sandwiched between both end edges 3 and 3 of the outer rail 1 by the roller 17 and the other end side is also sandwiched by the rollers 15 and 15 and is firmly held without rattling. The inner rail 2 can be smoothly slid by the rotation of the roller 15 and the rolling of the roller 17.
[0019]
Further, when the inner rail 2 is inserted to the innermost part of the outer rail 1, the tip 11 of the inner rail 2 enters between the fitting legs 18, 18 of the fitting stopper 9, as shown in FIG. The wavy shapes of both of them combine to form a snap-on fitting state, so that the inner rail 2 is positioned without being detached unless the inner rail 2 is pulled strongly. In other words, the drawers and cassettes to which the inner rail 2 is attached are also positioned.
[0020]
On the other hand, when the inner rail 2 is pulled out from the outer rail 1, the stopper piece 13 of the inner rail 2 comes into contact with the stopper 6 of the outer rail 1 and can no longer be pulled out.
[0021]
In addition, although the structure etc. which attach the inner rail 2 to a drawer etc. are abbreviate | omitted in the figure, what is necessary is just to attach with a well-known method suitably. Further, the inner rail 2 may be fixed to the housing of the device, and the outer rail 1 may be attached to a drawer or the like.
[0022]
FIG. 4 is a right side cross-sectional view (C) corresponding to FIG. 2 (C) showing a second embodiment of the slide rail according to the present invention.
In this embodiment, instead of the two rollers 15 and 15 of the previous embodiment, a single middle-high roller 15 a is provided at the inner central portion of the retaining stopper 6 of the outer rail 1 in the same manner as the roller 17. It will be. The roller 15 a is formed in a V shape so that the center portion protrudes most like the roller 17, and can be fitted inside the end edge portion 10 of the inner rail 1. Other configurations, operations, combination operations, and the like are the same as those in the previous embodiment, and thus redundant description is omitted.
[0023]
FIG. 5 is a left side sectional view (A) corresponding to FIG. 2 (B) and a right side sectional view (B) corresponding to FIG. 2 (C) showing a third embodiment of the slide rail according to the present invention.
In this embodiment, the number of rollers is the same as in the first embodiment, but the bending directions of both end edges 3a, 3a of the outer rail 1 are L-shaped so as to oppose each other, and both end edges 10a of the inner rail 2 are formed. 10a is formed in an L-shape in which the bending directions are opposite to each other. For this reason, the roller 17a fitted between the both end edges 3a, 3a of the outer rail 1 is provided with a groove 20 into which the edge of the end edge 3a can be fitted on the outer periphery of the center, and both end edges 10a of the inner rail 2 are provided. The rollers 15b and 15b positioned so as to sandwich 10a are also configured such that a groove 21 into which the edge of the end edge portion 10a is fitted is provided on the outer periphery of the center portion. Other configurations, operations, combination operations, and the like are the same as those in the previous embodiment, and thus redundant description is omitted.
[0024]
【The invention's effect】
Since the slide rail of the present invention is as described above, it does not require a retainer, which is conventionally required with this type of slide rail, and has a simple structure. Therefore, it is excellent in productivity and inexpensive, and is attached. There is an effect that it can be easily performed.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a first embodiment of a slide rail according to the present invention.
2 is a front view (A), a left side cross-sectional view (B), and a right side cross-sectional view (C) of the embodiment of FIG. 1 in an assembled state.
FIG. 3 is a perspective view showing a state where the inner rail is fitted by the fitting stopper of the embodiment of FIG. 1;
FIG. 4 is a right side cross-sectional view (C) showing a second embodiment of the slide rail according to the present invention.
FIG. 5 is a left side sectional view (A) and a right side sectional view (B) showing a third embodiment of a slide rail according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outer rail 2 Inner rail 3, 3a End edge part 4 of outer rail 4 Overhang part 5 Pin hole 6 Stop stopper 7 Fixing piece 8 Hole 9 Insertion stopper 10, 10a End edge part 11 of inner rail Tip 12 Pin hole 13 Stopper piece 14 Pin shaft 15, 15 a, 15 b Roller 16 Pin shaft 17, 17 a Roller 18 Fit stopper fitting leg 19 Same leg 20, 21 Groove

Claims (5)

A large-diameter roller comprising an outer rail and an inner rail that is detachably assembled by sliding between both inner edges of the outer rail, and is attached to the inner rail so as to fit between the inner edges of the outer rail; A pair of small diameter rollers attached to the outer rail so as to sandwich both edges of the inner rail from the outside, and the large diameter roller is inserted in a direction in which the inner rail is inserted between the inner edges of the outer rail. The slide rail is provided on the front end side of the inner rail, and the small diameter roller is provided on the front end side of the outer rail in a direction in which the inner rail is removed from between both inner edges of the outer rail. A large-diameter roller comprising an outer rail and an inner rail that is detachably assembled by sliding between both inner edges of the outer rail, and is attached to the inner rail so as to fit between the inner edges of the outer rail; A small-diameter roller attached to the outer rail so as to fit between both inner edges of the inner rail, and the large-diameter roller is inserted in the direction in which the inner rail is inserted between the inner edges of the outer rail. A slide rail provided on a front end side of the rail, wherein the small diameter roller is provided on a front end side of the outer rail in a direction in which the inner rail is removed from between both inner edges of the outer rail. An abutting stopper is provided on the distal end side of the outer rail in a direction in which the inner rail is further removed from the portion where the small diameter roller is provided, and rises to the side where the inner rail is combined to prevent the inner rail from coming off. The slide rail according to claim 1 or 2, characterized in that An opening is provided on the distal end side of the outer rail in the direction in which the inner rail is inserted, and the innermost rail insertion position of the inner rail is determined by sandwiching the distal end of the inner rail in the opening. 4. The slide rail according to claim 1, further comprising a fitting stopper. The inner rail is tapered in the direction of insertion into the outer rail, and both outer edges of the tapered portion are wavy, and the fitting stopper can be snap-fitted to the distal end portion of the inner rail. 5. A slide rail according to claim 4 characterized in that:

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