JP3196754U - Wheel structure - Google Patents

Abstract

The present invention provides a wheel structure in which a strong convex edge is combined and a wheel body can be stably slidably fitted onto an axle. The wheel structure includes a socket body, an axle shaft that is laterally installed in the socket body, at least one end of which is provided with a limiting ring groove, and a shaft hole. , The first limit convex edge is projected on the inner edge of the shaft hole, is slidably fitted in the limit ring groove of the axle, and is biased to the position on the first side of the limit ring groove The casing 30 and the pivot hole 41 are recessed, the second marginal convex edge is projectingly provided on the inner edge of the pivot hole, and is slidably fitted into the axle ring groove. And a wheel body 40 that is installed biased to a position on the second side of the annular groove. The first and second limit convex edges are comparatively wide and strong, and are slidably fitted in the limit ring groove to improve the service life of the wheel and the stability during rotation of the wheel body. Let [Selection] Figure 3

Description

  The present invention relates to the structure of a wheel, and in particular, the separated first and second limit convex edges are combined to form a relatively strong convex edge so that the wheel body can be stably slidably fitted onto the axle. Regarding the wheel.

  Currently, a wheel that is universally attached to the bottom of an article usually includes a socket body, and an axle is penetrated through the socket body, and the axle is brought into contact with the wheel body. In order to enable the wheel body to be stably pivoted on the axle and not to fall off from the axle, usually at least one annular groove 511 is provided on the axle 51 as shown in FIGS. And a convex edge 521 is provided corresponding to the annular groove 511 at the inner edge of the shaft hole of the wheel body 52, and the convex edge 521 is fitted into the annular groove 511. The position on the axle 51 is limited, and the sliding movement of the wheel body 52 along the axle 51 is stopped.

  However, the conventional wheel body 52 is usually formed of a plastic material, and when molded by an injection method, when the protruding height or width of the convex edge 521 is excessively large, the film cannot be smoothly removed. Due to manufacturing limitations, conventional wheels have a sufficiently small convex edge 521 of the wheel body 52, a height of typically less than 0.5 mm, and a width of less than 1 mm. When the wheel body 52 and the axle 51 are assembled, the convex edge 521 of the wheel body 52 can be pushed into the annular groove 511 of the axle 51, and the normal impact method is used, and the convex edge 521 is instantaneously attached to the axle 51. Although it is pushed into the annular groove 511, in the course of the impact and pushing, the convex edge 521 of the minute protrusion is often collapsed and can be fitted to the annular groove 511 of the axle 51 in a stable and slidable manner. First, the wheel body 52 is slid in the axial direction on the axle 51 by an external force, so that the wheel body 52 can be easily dropped off from the axle 51, and its drawbacks are projected.

  In view of this, the inventor discloses the structure of the wheel shown in the present invention through research and innovation.

  An object of the present invention is to provide a socket body, an axle that is laterally installed in the socket body, at least one end of which is provided with a limiting ring groove, an axle hole that penetrates the axle, and the axle is penetrated. A casing in which a first limited convex edge is provided on the inner edge of the hole, is slidably fitted in the limited ring groove of the axle, and is disposed at a position on the first side of the limit ring groove. The pivot hole is recessed, the second limit convex edge is protruded on the inner edge of the pivot hole, and is slidably fitted in the limit ring groove of the axle, and the limit ring groove A wheel body including a wheel body that is biased and installed at a position on the second side of the wheel.

  The wheel structure of the present invention has a socket body, an axle that is laterally installed in the socket body, at least one end of which is provided with a limiting ring groove, an axle hole that is installed, and the axle is penetrated. A first convex protrusion is provided on the inner edge of the shaft hole, is slidably fitted in the limit ring groove of the axle, and is biased to a position on the first side of the limit ring groove. A casing and a pivot attachment hole, a second limit convex edge is provided on the inner edge of the pivot hole, and is slidably fitted in a limit ring groove of the axle. And a wheel body installed at a position on the second side of the annular groove.

  The structure of the wheel disclosed in the present invention is such that the wheel body is slidably fitted in the limit annular groove of the axle in cooperation with the first limit convex edge of the casing by the second limit convex edge. In the wheel body of the present invention, the first limit convex edge of the casing is aligned with the second limit convex edge, and a convex edge having a relatively wide width on one side is formed to slide efficiently on the axle. Fitting, limiting the movement of the wheel body along the axial direction of the wheel, and the width formed by the first and second constraining convex edges can be greatly increased compared to the prior art. It is possible to break through the limitations of die cutting conditions when injection molding cannot be performed, and the wheel body can be rotated more stably on the axle, increasing the service life, and the novelty and inventive step of the present invention. Make it protrude.

It is structural sectional drawing of the conventional wheel. It is an enlarged view of the location shown with the code | symbol 2 of FIG. It is a three-dimensional exploded view of the present invention. It is an external view explanatory drawing of this invention. It is a section partial assembly explanation drawing of the present invention. It is structural sectional drawing of this invention. It is an enlarged view of the location shown with the code | symbol 7 of FIG.

  The possible entities of the present invention will be clarified by the following description and drawings.

  As shown in FIG. 3 to FIG. 7, the wheel structure of the present invention includes a socket body 10 and an axle 20 that is installed in the socket body 10 so as to penetrate in the lateral direction and at least one end of which is provided with a limiting ring groove 21. The casing 30, the shaft hole 31 is penetrated, the axle 20 is penetrated, the first limit convex edge 311 is projected on the inner edge of the shaft hole 31, and the casing 30 is connected to the side end of the axle 20. The first limit convex edge 311 is slidably fitted in the limit ring groove 21 of the axle 20 and is installed at a position on the first side 21a of the limit ring groove 21. The casing 30 and the pivot attachment hole 41 are recessed, the second limit convex edge 411 is provided at the inner edge of the pivot attachment hole 41, and the pivot attachment hole 41 is formed on the side end of the axle 20. When contacting, the second limit convex edge 411 is slidably fitted in the limit ring groove 21 of the axle 20 and the second side of the limit ring groove 21 It includes a wheel body 40 which is installed biased position of 1b, and.

  As shown in FIGS. 3, 5, and 7, the wheel structure disclosed in the present invention is such that the wheel body 40 is jointed with the first limit convex edge 311 of the casing 30 by the second limit convex edge 411. The wheel body 40 of the present invention is slidably fitted in the limit ring groove 21 of the axle 20, that is, the wheel body 40 of the present invention aligns the first limit convex edge 311 of the casing 30 with the second limit convex edge 411. A convex edge having a relatively wide width W on one side is jointly formed, and is efficiently slidably fitted to the axle 20 to restrict movement of the wheel body 40 along the axial direction of the axle 20; The width of the first and second limit convex edges 311 and 411 can be greatly increased as compared with the conventional case, and the limitation of the die cutting condition can be overcome in manufacturing. Further, it can be stably rotated on the axle 20, and the service life is increased. And to project an inventive step.

  In the wheel structure disclosed in the present invention, the wheel body 40 further includes an articulated hole in the axial direction, articulated outside the casing 30, and pivotally attached to the bottom end of the articulated hole 42. The hole 41 is recessed in the axial direction.

  As shown in FIGS. 5, 6, and 7, in the structure of the wheel disclosed in the present invention, the outer edge of the casing 30 is provided with a fitting groove 32, and the inner edge of the articulation hole 42 of the wheel body 40. A convex edge 421 corresponding to the fitting groove 32 is provided so as to be fitted into the fitting groove 32. In the structure of the wheel disclosed in the present invention, the casing 30 is fitted into the articulation hole 42 of the wheel body 40 and is synchronously rotated according to the wheel body 40.

  In the wheel structure disclosed in the present invention, the inner diameter d1 of the first limit convex edge 311 of the casing 30 is made smaller than the inner diameter d2 of the second limit convex edge 411 of the wheel body 40. The structure of the wheel disclosed in the present invention can make the friction resistance of the casing 30 better than that of the wheel body 40. Therefore, when the present invention is operated, the casing 30 having relatively good friction resistance is first provided. By frictional contact with the axle 20, the entire service life can be increased.

  In the wheel structure disclosed in the present invention, the casing 30 may be manufactured from a metal material or a plastic material, and the present invention is not limited thereto.

  In the wheel structure disclosed by the present invention, the width W1 of the both ends of the limit ring groove 21 is greater than the width distance W of the first and second limit convex edges 311 and 411, and the first and second The constraining convex edges 311 and 411 can be completely slid into the constraining ring groove 21. Further, shoulders 211 can be formed on both sides of the constraining ring groove 21, respectively, and the first and second constraining convex edges 311 and 411 are located between both sides of the constraining ring groove 21, The wheel body 40 can be prevented from falling off and separating from the axle 20. The limiting ring groove 21 of the axle 20 may have an arc shape or a rectangular cross section, but the present invention does not limit the shape.

  As shown in FIG. 3, the wheel structure disclosed in the present invention is such that the socket body 10 further has a sliding groove 11 recessed, and a sliding block 12 is slidably installed in the sliding groove 11. A spring 13 is elastically supported between the sliding block 12 and the sliding groove 11, the sliding block 12 is elastically pressed downward, and correspondingly on both side groove walls of the sliding groove 11, respectively. A long slot 111 is installed through, a shaft hole 121 is further installed through the sliding block 12, the axle 20 is installed through the shaft hole 121 of the sliding block 12, and the axle 20 is installed in the long slot. 111 is slidably installed. In this way, the axle 20 is moved elastically along the long slot 111 on the socket body 10 according to the sliding block 12, buffering the reaction force of the wheel body 40, reducing noise generation, and operating. Is further stabilized.

  In the present invention, preferred embodiments have been disclosed as described above, but these are not intended to limit the present invention in any way, and anyone who is familiar with the technology has an equivalent scope that does not depart from the spirit and scope of the present invention. Of course, various fluctuations and hydration colors can be added.

DESCRIPTION OF SYMBOLS 10 Socket body 11 Chute | shoot 111 Long slot 12 Sliding block 121 Shaft hole 13 Spring 20 Axle 21 Limiting ring groove 211 Shoulder part 21a First side 21b Second side 30 Casing 31 Shaft hole 311 1st limit convex edge 32 Fitting groove 40 Wheel body 41 Pivoting hole 411 Second limit convex edge 42 Articulating hole 421 Convex edge 51 Axle 511 Ring groove 52 Wheel body 521 Convex edge d1 Inner diameter d2 Inner diameter W1 Width W Width distance

Claims (10)

A socket body;
An axle that penetrates laterally into the socket body and has a constrained annular groove provided at least at the outer edge of one end;
Penetrating the shaft hole, penetrating the axle, projecting a first constraining convex edge on the inner edge of the shaft hole, slidably fitted in a constraining ring groove of the axle, and the constraining ring A casing that is biased to a position on the first side of the groove;
The pivot hole is recessed, the second limit convex edge is projected on the inner edge of the pivot hole, is slidably fitted in the limit ring groove of the axle, and the A wheel structure including a wheel body installed at a biased position on two sides.   2. The wheel according to claim 1, wherein the wheel body is further provided with an articulated hole in the axial direction, an articulated outside the casing, and an axially recessed hole at the bottom end of the articulated hole. Structure.   The outer edge of the casing is provided with a fitting groove, and the inner edge of the articulation hole of the wheel body is provided with a protruding edge corresponding to the fitting groove, and is fitted into the fitting groove. 2. The structure of the wheel according to 2.   The wheel structure according to claim 1, wherein an inner diameter of the first limit convex edge of the casing is smaller than an inner diameter of the second limit convex edge of the wheel body.   The wheel structure according to claim 1, wherein shoulders are provided on both sides of the limit ring groove of the axle.   The wheel structure according to claim 1, wherein a cross section of the constraining ring groove has an arc shape.   The wheel structure according to claim 1, wherein the casing is made of a metal material.   The wheel structure according to claim 1, wherein the casing is made of a plastic material.   The wheel structure according to claim 1, wherein a width of both ends of the limit ring groove is larger than a width distance of the first and second limit convex edges.   The socket body further includes a slide groove, and allows the slide block to slide in the slide groove, elastically supports a spring between the slide block and the slide groove, and both side grooves of the slide groove. Correspondingly on the wall, each passes through a long slot, passes through a shaft hole on the sliding block, passes through the axle into the shaft hole of the sliding block, and the axle is slidable in the long slot The wheel structure according to claim 1.

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