JP4185568B2 - Slide rail - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is configured such that the inner member slides forward relative to the intermediate member after the intermediate member slides forward relative to the outer member and stops in a state where the inner member is accommodated in the intermediate member. The present invention relates to a slide rail having a so-called sequential function.
[0002]
[Prior art]
11 shows an outer member (fixed member) 1a, an intermediate member 2a slidably held by the outer member 1a, and an inner member (moving member) 3a slidably held by the intermediate member 2a. In the configured slide rail, when the intermediate member 2a is fully accommodated with respect to the outer member 1a and the inner member 1a is completely accommodated with respect to the intermediate member 2a, when the devices connected to the inner member 1a are pulled forward, Only the inner member 3a slides with the intermediate member 2a stopped, or the intermediate member 2a slides with the inner member 3a stored, or the inner member 3a and the intermediate member 2a simultaneously Sliding or not constant.
[0003]
That is, when a heavy load device is attached to the inner member 3a and the intermediate member 2a is stopped, when only the inner member 3a slides forward and protrudes, the ball interposed between the outer member 1a and the intermediate member 2a Since 4a ... is in a state of being stopped between the intermediate member 2a and the outer member 1a, the load of the equipment is applied to the inner member 3a protruding forward from the ball 4a ..., so the outer member 1a A large moment acts on the front part of the ball 4a at the front end portion, and the load of the equipment is the most loaded on the front part of the outer member (the plurality of balls 4a. The intermediate member 2a slides relative to the outer member 1a in the state of not supporting the outer member 1a. The strain may be generated in, there is a problem that each member 2a, 3a does not slide smoothly.
[0004]
In order to solve this problem, as shown in FIG. 12, an inner member holding member 7a made of an elastic material in which fitting recesses 6a and 6a are formed is provided at the rear end portion of the intermediate member 2a. By forming the fitting convex portions 8a, 8a elastically fitting into the mating concave portions 6a, 6a at the rear end portion of the inner member 3a, the inner member 3a is completely stored in the intermediate member 2a. There has been provided a slide rail in which the fitting convex portions 8a and 8a are elastically fitted to the fitting concave portions 6a and 6a.
[0005]
That is, since the fitting convex portions 8a and 8a are fitted to the fitting concave portions 6a and 6a, when the inner member 3a is slid forward, the intermediate member 2a is stored in the middle member 2a in the middle. The member 2a slides forward with respect to the outer member 1a.
Then, when the intermediate member 2a slides to a predetermined position in front of the outer member 1a and stops, the inner member 3a is further pulled out to fit the fitting convex portions 8a and 8a and the fitting concave portions 6a and 6a. A sequential movement function (sequential function) for releasing the state and then sliding the inner member 3a against the intermediate member 2a was provided.
[0006]
[Problems to be solved by the invention]
However, according to the above configuration, the balls 9a interposed between the intermediate member 2a and the inner member 3a in the state in which the inner member 3a is accommodated in the intermediate member 2a are arranged in the front-rear direction of the inner member 3a and the intermediate member 2a. Since it is located at a substantially intermediate portion, it has not been possible to completely prevent the lateral separation (lateral runout) between the inner member 3a and the intermediate member 2a in the rear part thereof. Further, the left and right widths of the devices to which the inner member 3a is attached vary due to processing errors and the like. Therefore, in an actual use state, the inner member 3a is housed in the intermediate member 2a, and the position of the devices in the width direction (left-right direction) is slightly between the inner member 3a and the intermediate member 2a. ), And the engagement margin in the left-right direction of the fitting recesses 6a, 6a and the fitting projections 8a, 8a is reduced. When used for a long time, the sequential function is not sufficiently exhibited due to wear and the like. There was a problem.
[0007]
The present invention has been made in view of the above problems, and it is an object of the present invention to provide a slide rail having a sequential function with excellent stability that can be produced inexpensively with a simple structure and can withstand long-term use. To do.
[0008]
[Means for solving the problems]
Therefore, in order to solve the above-mentioned problem, the first means of the present invention is that the inner member is accommodated in the intermediate member and the intermediate member slides forward with respect to the outer member and stops. In the slide rail in which the moving device is sequentially provided between the intermediate member and the inner member so that the inner member slides forward with respect to the intermediate member, the sequential moving device is made of a synthetic resin provided at the rear end portion of the intermediate member. The inner member holding member and a supporting recess formed at the rear end of the ball sliding groove of the inner member, the inner member holding member includes an inner surface sliding groove of the intermediate member and a ball sliding of the inner member. A lateral run-out restricting section that is located between the grooves and prevents the inner member from running laterally relative to the intermediate member. The inner member holding portion is connected to the rear side of the lateral vibration regulating portion, and the inner member holding portion is connected to the elastic leg portion having appropriate elasticity in the vertical direction and the rear end portion of the elastic leg portion. The inner member is composed of a holding projection located in the support recess in a state where the inner member is completely accommodated in the intermediate member .
[0014]
【Example】
Hereinafter, the present invention will be described with reference to the accompanying drawings.
1 to 4, reference numeral 100 denotes a slide rail according to the present invention. The slide rail 100 includes an outer member 1, a ball 40 that is rotatably held by the outer member 1 and the outer retainers 4, 4. The intermediate member 2 is slidably held via the intermediate member 2, and the intermediate member 2 is slidably held via the balls 50, which are rotatably held by the inner retainers 5, 5. It is composed of an inner member 3.
[0015]
The outer member 1 is a substantially channel type that is connected to a fixed member and used as a fixed member. Specifically, the outer member 1 is connected to a belt-like substrate 10 connected to the fixed member and upper and lower ends of the substrate 10. The upper and lower ball restricting edges 11 and 11 that are spaced apart from each other in the direction of the intermediate member 2 and the substantially horizontal L-shaped vertically projecting edges 12 and 12 that are connected to the upper and lower ball restricting edges 11 and 11 and face each other. Has been.
In the rear end portion of the substrate 10, a stopper 13 is formed that protrudes toward the intermediate member 2, and in the front-rear direction of the substrate 10, predetermined locations of the upper and lower end portions (front end portion and approximately two central portions) Retainer stoppers 14 are formed to project the rear end portion inward and restrict the range of movement of the outer retainer 4 in the front-rear direction.
Further, connecting holes 15... Are formed at predetermined intervals in the front-rear direction of the substrate 10 of the outer member 1 with a fixing member.
[0016]
The intermediate member 2 is configured in a substantially channel shape from a substrate 20 that protrudes toward the inner member 3 in the center in the height direction, and upper and lower edges 21 and 21 that are connected to the upper and lower ends of the substrate 20. On the outer surfaces of the upper and lower edges 21, 21, outer sliding grooves 22, 22 of the balls 40... Rotatably held by the outer ball retainer 4 are formed, and the inner ball retainer 5 is formed on the inner surfaces of the upper and lower edges 21, 21. Are formed on the inner surface sliding concave grooves 23 of the balls 50.
[0017]
Further, when the inner member 3 is stored in the intermediate member 2 at the rear end portion of the substrate 20, the rear end portion of the inner member 3 comes into contact with the inner member 3 and stores the intermediate member 2 in the outer member 1. An intermediate member rear end stopper 24 is formed to protrude toward the inner member 3, and the front end of the inner retainer 5 contacts the front end of the substrate 20 when the inner member 3 extends most with respect to the intermediate member 2. An inner retainer front end stopper 25 is formed, and the rear end portions of the upper and lower edges 21, 21 protrude into the upper and lower ball regulating protrusion edges 11, 11 and the upper and lower protrusion edges 12, 12, and the intermediate member 2 is the outer member. An outer retainer rear end stopper 26 that abuts against the rear end portion of the outer retainer 4 when it is most extended relative to 1 is formed.
The intermediate member rear end stopper 24 is provided with a shock absorbing member 241 for providing a shock absorber and a silencing function.
[0018]
The inner member 3 is composed of a belt-like substrate 30 and upper and lower edges 31, 31 connected to upper and lower ends of the substrate 30, and the upper and lower edges 31, 31 have balls 50 held by the inner retainer 5. Are formed so as to be slidable between the inner surface sliding grooves 23 and 23 of the intermediate member 2.
When the inner member 3 is accommodated in the intermediate member 2, the inner member 3 abuts against the intermediate member rear end stopper 24 (buffer member 241) at the rear end of the substrate 30 of the inner member 3. However, when it is most extended with respect to the intermediate member 2, it abuts against the rear end portion of the inner retainer 5 (at this time, the front end of the inner retainer 5 abuts against the inner retainer front end stopper 25 of the intermediate member 2 and the inner retainer 5 The inner member rear end stopper 33 (shown in FIG. 6) is formed to protrude toward the inner retainer 5 side.
A moving device 6 (described later) is sequentially provided between the rear end portions of the intermediate member 2 and the inner member 3 configured as described above.
[0019]
The outer retainer 4 is formed in a rod shape from a synthetic resin material, and holds the balls 40... At the front and rear end portions in the sliding direction so that the outer member 1 is extended most with respect to the outer member 1. It is located at a location that supports the front and rear end portions of the intermediate member 2 remaining in 1.
The inner retainer 5 is composed of a substrate 51 whose central portion in the height direction protrudes in an approximately chevron shape toward the inner member 3, and upper and lower edges 52, 52 connected to upper and lower ends of the substrate 51. The balls 50 are rotatably held at predetermined positions in the sliding direction.
[0020]
As shown in FIGS. 5 to 10, the sequential moving device 6 includes an inner member holding member 7 made of synthetic resin provided at the rear end of the intermediate member 2, and ball sliding grooves 32, 32 of the inner member 3. It is comprised from the support recessed parts 61 and 61 formed in the rear-end part.
The inner member holding member 7 is connected to the mounting substrate 71 having a shape along the inner surface of the substrate 20 of the intermediate member 2, the upper and lower ends of the mounting substrate 71, and the inner surface sliding grooves 23, 23 of the intermediate member 2, Located between the ball sliding concave grooves 32, 32 of the inner member 3, prevents the inner member 3 from sideways with respect to the intermediate member 2, and has a cylindrical sideways regulating portion 72 in the front-rear direction in which the tip portion is tapered. , 72, inner member holding portions 75, 75 connected to the rear of the lateral swing restricting portions 72, 72, and mounting holes formed in the substrate 20 of the intermediate member 2 connected to the rear of the mounting substrate 71. It is comprised from the attaching part 77 which has the fitting protrusion 76 fitted to 201 on the back surface side.
[0021]
The inner member holding portions 75, 75 are connected to elastic leg portions 73, 73 having moderate elasticity in the vertical direction and rear end portions of the elastic leg portions 73, 73 so that the inner member 3 is completely connected to the intermediate member 2. It is comprised from the holding protrusions 74 and 74 located in the said support recessed parts 61 and 61 in the state accommodated in the.
[0022]
The present invention is configured as described above and operates as follows.
When the intermediate member 2 is stored in the outer member 1 and the inner member 3 is stored in the intermediate member 2 (equipment, drawer, etc. are stored, as shown in FIG. 6), the inner member 3 is pulled forward. Then, since the holding protrusions 74 and 74 of the inner member holding portions 7 and 75 are elastically fitted to the support recesses 61 and 61 of the inner member 3, the inner member 3 holds the intermediate member 2. However, both slide forward.
[0023]
Then, the outer retainer rear end stoppers 26, 26 of the intermediate member 2 abut on the rear end of the outer ball retainer 4, abut on the outer retainer stopper 14, and the sliding of the intermediate member 2 with respect to the outer member 1 stops. . Further, when the inner member 3 is pulled out, the support recess 61 of the inner member 3 is pushed so as to spread between the holding projections 74, 74 of the inner member holding portions 75, 75 against the elasticity of the elastic legs 73, 73. , 61 move forward, the elastic fitting state of the support recesses 61, 61 and the holding projections 74, 74 is released, and the inner member 3 slides forward with respect to the intermediate member 2.
Eventually, the front end of the inner retainer 5 comes into contact with the inner retainer front end stopper 25 of the intermediate member 2, and at the same time, the inner member rear end stopper 33 of the inner member 3 comes into contact with the rear end of the inner retainer 5 to slide the inner member 3. Stops, and the inner member 3 (equipment, drawer, etc.) is completely pulled out.
[0024]
Next, when the inner member 3 is stored from this state (equipment, drawers, etc. are stored), the intermediate member 2 and the inner member 3 move backward or sequentially (at this time, the inner member 3 Since the ball 40 interposed between the outer member 1 and the intermediate member 2 in the most pulled out state moves from the state in which the rear half of the intermediate member 2 is supported in the front half of the outer member 1, Even if the members 2 and 3 do not slide in the opposite order, no large moment is generated between the intermediate member 2 and the outer member 1, and no distortion is generated in the front portion of the outer member 1, so that each member (It will not affect the sliding of 2 or 3)
Eventually, the intermediate member rear end stopper 24 (buffer member 241) of the intermediate member 2 comes into contact with the stopper 13 during storage of the outer member 1 and stops.
Next, the rear end portions of the ball sliding grooves 32, 32 of the inner member 3 are externally fitted to the lateral run-out restricting portions 72, 72, and the inner member holding portions 75, 75 are pushed backward to move backward, The inner member rear end stopper 33 of the inner member 3 abuts against the intermediate member rear end stopper 24 (buffer member 241) in a state where the portions 74, 74 are elastically fitted to the support recesses 61, 61, and the inner member 3 Is stopped, and the intermediate member 2 and the inner member 13 are completely accommodated in the outer member 1 (the state shown in FIG. 6 in which equipment, drawers, etc. are completely accommodated).
[0025]
Ie, basic gist of the present invention is provided with a lateral oscillation regulation unit between the intermediate member and the inner member, in a state where the inner member is accommodated in the intermediate member, that prevents the deflection side of the inner member and, By sequentially bringing the lateral shake restricting portion closer to the moving device, the sequential function is made more effective and excellent in stability.
[0026]
【The invention's effect】
According to the first aspect of the present invention, since the sequential moving device is merely composed of the inner member holding member made of synthetic resin and the supporting concave portion of the inner member, the structure is simple and can be manufactured at low cost.
The inner member holding member has an integrally formed lateral shake restricting portion and an inner member retaining portion, and the lateral shake restricting portion is positioned between the inner surface sliding groove of the intermediate member and the ball sliding groove of the inner member. Therefore, it is possible to reliably prevent the lateral shake and improve the stability of the sequential function.
[Brief description of the drawings]
FIG. 1 is a perspective view of the present invention.
FIG. 2 is a front view illustrating the basic structure of the slide rail of the present invention.
FIG. 3 is a cross section of a central portion for explaining the basic structure of the slide rail of the present invention.
Figure.
FIG. 4 is a cross section of a rear end portion for explaining the basic structure of the slide rail of the present invention.
Figure.
FIG. 5 is a cross-sectional view of a main part of the slide rail of the present invention.
6 is a cross-sectional view taken along the line CC in FIG. 5. FIG. 7 is a cross-sectional view corresponding to FIG.
FIG. 8 is a cross-sectional view corresponding to FIG.
9 is a cross-sectional view taken along the line DD of FIG.
FIG. 10 is a perspective view of an inner member holding member.
FIG. 11 is a cross-sectional view illustrating the basic structure of a conventional slide rail.
FIG. 12 is a cross-sectional view illustrating a conventional sequential movement device.
[Explanation of symbols]
1
Outer member 100
Slide rail 2
Intermediate member 20
Substrate 23, 23 Internal sliding groove 3
Inner member 32, 32 Ball sliding groove 4, 4
Outer ball retainer 40
Ball 5
Inner ball retainer 50
Ball 6 Sequential moving device 7 Inner member holding member 72, 72 Lateral run-out restricting portion 75, 75 Inner member holding portion

Claims (1)

With the inner member stored in the intermediate member, the intermediate member slides forward with respect to the outer member and stops, and then the inner member sequentially slides between the intermediate member and the inner member so as to slide forward with respect to the intermediate member. In the slide rail provided with the moving device, the moving device is sequentially formed at the inner member holding member made of synthetic resin provided at the rear end portion of the intermediate member and the rear end portion of the ball sliding groove of the inner member. The inner member holding member is located between the inner member sliding groove of the intermediate member and the ball sliding groove of the inner member, and is circular in the front-rear direction to prevent the inner member from swinging relative to the intermediate member. It has a columnar lateral run-out restricting portion and an inner member holding portion that is connected to the rear of the lateral run-out restricting portion. The lumbar holding part is connected to the elastic leg part having moderate elasticity in the vertical direction and the rear end part of the elastic leg part, and the inner member is completely accommodated in the intermediate member and is positioned in the support concave part. A slide rail characterized by comprising a holding projection .

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