JP4201586B2 - Roller and guide rail using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roller used for reducing friction when a drawer for office furniture such as a cabinet and other household furniture is pulled out, and a guide rail provided with the roller.
[0002]
[Prior art]
Conventionally, when pulling out a particularly heavy object like a cabinet drawer, a single or multiple guide rail with a set of rollers has been used to smoothly pull it out. Yes. Also, without using the guide rail, the roller itself may be mounted on the drawer and used. The roller used in such a case is usually made of a synthetic resin such as polyacetal having a hardness that does not substantially deform due to the weight of the drawer or its contents.
[0003]
[Problems to be solved by the invention]
However, the other member on which the roller rolls as described above is a rail member fixed to the casing side, a rail member fixed to the drawer side, or the casing itself or the drawer itself, and generally a metal member or It is a wooden member. Therefore, the rotation of the members having a predetermined hardness occurs, and in reality, a slight relative slip occurs. For this reason, a sliding friction sound is generated during the pulling-out operation. Furthermore, roller wear due to sliding friction has occurred, and the problem of durability of the roller arises.
Accordingly, the present invention aims to reduce friction noise and wear during roller rolling as much as possible.
[0004]
[Means for Solving the Problems]
In view of the above-described object, in claim 1, the roller main body portion and the roller main body portion are integrated so as not to be separable, and have an outer peripheral portion that slightly protrudes from the exposed outer peripheral surface of the roller main body portion. An elastic part formed of a member that is softer and more elastic than the roller body part, and the slightly protruding outer peripheral part of the elastic part is crushed by the weight acting on the roller when used, and the roller The elastic body is flush with the outer peripheral surface of the main body, and the elastic part is not provided in the middle part of the outer peripheral surface of the roller main body , and the left and right side surfaces of the roller main body are used as the first and second elastic parts. It is provided with a roller characterized by being arranged in
[0005]
Since the elastic portion formed by a member that is more flexible and elastic than the roller main body has an outer peripheral portion that slightly protrudes from the outer peripheral surface of the roller main body, the protruding outer peripheral portion is rolled by the rolling pressure. Pressing against the moving counterpart member surface, the rolling frictional force of the entire roller is improved, and slipping is prevented. Moreover, since this flexible outer peripheral part protrudes only slightly with respect to the outer peripheral surface of the roller body part, the flexible outer peripheral part is flush with the outer peripheral surface of the relatively hard roller body part. The pressure at the time of rolling and roller rolling can be substantially handled by the roller main body, and the flexible outer peripheral portion can be prevented from being damaged. Furthermore, if each site | part of a flexible outer peripheral part is released from a press state with rolling, the outer peripheral part will return to the state which protruded slightly like the original by the elastic action of a flexible outer peripheral part (elastic part). . Therefore, the sliding of the roller is prevented, and the noise and wear during rolling can be reduced as much as possible .
[ 0006 ]
In Claim 2 , it is a guide rail when pulling out a drawer of furniture such as a cabinet,
It has a roller body and an outer peripheral part that is integrated with the roller body so as to be inseparable and slightly protrudes from the exposed outer surface of the roller body, and is more flexible and elastic than the roller body. And the slightly projecting outer peripheral portion of the elastic portion is crushed by the weight acting on the roller when used, and is flush with the outer peripheral surface of the roller main body. The elastic part is not provided in the intermediate part of the outer peripheral surface of the roller main body part, and the rollers disposed on the left and right side surfaces of the roller main body part are incorporated as the first and second elastic parts. A guide rail is provided.
[ 0007 ]
A furniture drawer such as a cabinet usually contains a guide rail because a relatively heavy container such as a file is usually accommodated. If the roller according to claim 1 is incorporated in this guide rail, the sound and the wear of the roller when the drawer is put in and out can be effectively reduced as in the case of claim 1.
In the guide rail, the effect of the roller according to claim 1 is exhibited.
[ 0008 ]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail based on an embodiment shown in the accompanying drawings.
FIG. 1 is an example of a guide rail according to the present invention, and is a perspective view of a double guide rail. However, the present invention can also be applied to a single guide rail. In FIG. 1, the moving rail 12 is configured to be slidable in the housing side rail 10 </ b> G fixed to the housing 10. Three rollers R1, R2, and R3 (sequentially from the front) are attached to the lower position of the moving rail, and two rollers R4 and R5 (sequentially from the rear) are attached to the upper position.
[ 0009 ]
The roller R1 is provided at the lower part of the front end of the moving rail, the roller R4 is provided at the upper part of the rear end, the rollers R2 and R3 are provided at the lower part of the central part, and the roller R5 is provided at the upper part of the central part. In a state near the stowage state of the drawer, a drawer-side rail (not shown) fixed to the side of the drawer 14 is placed on the rollers R1, R2, and R3. The structure mounted in roller R1, R2, R3 may be sufficient.
[ 0010 ]
When the drawer 14 is pulled out, the rollers R1, R2, and R3 are rubbed and rolled on the lower surface of the drawer-side rail. In this case, since the rollers R2 and R3 also roll on the inner bottom surface of the housing side rail 10G, the moving rail 12 also moves in the direction of movement of the drawer, but the speed is about half of the drawer speed. When the drawer is completely pulled out, the drawer side rail comes off the roller R3 and is placed on the rollers R1 and R2, and the rear part of the drawer is supported from above by the roller R5. Further, the moving rail 12 tends to incline downward due to its own weight and the weight of the drawer (and its storage), but the roller R4 at the upper end of the rear end abuts on the inner upper surface of the housing side rail, and the inclination is reduced. To prevent.
[ 0011 ]
The roller used for the guide rail has the structure shown in FIG. 2 and FIG. 3 exemplifying the roller R2, thereby preventing the wear and further preventing the noise when the drawer is moved. FIG. 3 is an enlarged cross-sectional view taken along line CC of FIG. Referring to both figures, for example, on the left and right sides of a roller body RH formed of polyacetal, an annular foam made of a non-foamed polyurethane resin or a vinyl chloride resin, which is a member that is more flexible and elastic than the roller body. Thin plate-like elastic portions D1 and D2 are arranged, and these are extended to the left and right, and are connected by connecting portions RB provided in an appropriate number (eight here) in the circumferential direction. The form of the connecting portion is free, and it may not be a columnar shape as in this example, but may be a prismatic shape or a thin plate shape. A hole H in the center of the roller body is a hole through which a pivot attached to the moving rail is passed.
[ 0012 ]
In the manufacturing method, the elastic part is first injection-molded, and then the roller body is injection-molded so as to be integrally cast with the elastic part, thereby integrating the elastic part and the roller body. Therefore, instead of the connecting part RB in which the left and right elastic parts are completely connected, it may be a simple convex part interrupted in the middle, but if there is a connecting part RB in which the left and right elastic parts are connected to each other, the integration becomes stronger. Become.
[ 0013 ]
The outer peripheral surface RHG of the roller body RH is exposed to the outside, but the outer peripheral portions D1G and D2G of the left and right elastic portions protrude by a slight dimension δ from the outer peripheral surface RHG. The dimension δ is preferably about 0.1 mm to 0.3 mm.
Since the elastic part is not provided in the intermediate part of the roller body part, the strength of the roller body part is improved .
[ 0014 ]
From the viewpoint of reducing the number of rollers according to the present invention, in addition to making all the five rollers of the double guide rail as the rollers according to the present invention as described above, in particular, only the rollers R1 and R4 are the rollers according to the present invention. By doing so, the smoothness when pulling out the drawer is considerably improved as compared with the prior art. Furthermore, the roller R2 is also made a roller according to the present invention, so that it becomes smoother.
[ 0015 ]
As described above, the roller according to the present invention is not only applied to the double guide rail as in the above example, but can be applied to a single guide rail as described above. The rail main body may be eliminated and provided directly on the drawer, or may be provided directly on the housing.
[ 0016 ]
【The invention's effect】
As is apparent from the above description, according to the present invention, it is possible to reduce friction noise and wear during roller rolling as much as possible in both the case of the guide rail and the roller alone.
[Brief description of the drawings]
FIG. 1 is a perspective view of a guide rail according to the present invention.
FIG. 2 is an enlarged view of a roller used in the guide rail of FIG.
FIG. 3 is an enlarged cross-sectional view taken along line CC in FIG.
[Explanation of symbols]
D1, D2 Elastic part RH Roller body part RHG Roller body part outer peripheral surface D1G, D2G Outer part of elastic part

Claims (2)

And the roller main body, are inseparably integrated with the roller body part, has an outer peripheral portion slightly protruding with respect to the roller main body outer peripheral surface that is exposed, the flexible elastic than the roller body portion And the slightly projecting outer peripheral portion of the elastic portion is crushed by the weight acting on the roller when used, and is flush with the outer peripheral surface of the roller main body. become,
The roller is characterized in that the elastic portion is not provided in an intermediate portion of the outer peripheral surface of the roller main body portion, and is disposed on both the left and right side surfaces of the roller main body portion as first and second elastic portions . A guide rail for pulling out furniture drawers such as cabinets,
It has a roller body and an outer peripheral part that is integrated with the roller body so as to be inseparable and slightly protrudes from the exposed outer surface of the roller body, and is more flexible and elastic than the roller body. And the slightly projecting outer peripheral portion of the elastic portion is crushed by the weight acting on the roller when used, and is flush with the outer peripheral surface of the roller main body. become,
The elastic part is not provided at the intermediate part of the outer peripheral surface of the roller main body part, but incorporates rollers disposed on the left and right side surfaces of the roller main body part as first and second elastic parts .
A guide rail characterized by that.

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