JP2543426Y2 - Travel trunk caster structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a caster structure for a traveling trunk.

[0002]

2. Description of the Related Art In a conventional connection system for fixing a caster to a trunk, a positioning bracket (or pedestal) is fixed to a trunk body in advance, and then a pedestal holding the caster is fixed to the positioning bracket (or azimuth pedestal). The format is general.

[0003]

However, the above-described mounting method requires two steps of mounting the positioning bracket (or azimuth pedestal) and mounting the casters to the positioning bracket (or azimuth pedestal). .

Further, since two casters are mounted on the left and right, it is necessary that the two casters be mounted completely in parallel. For this reason, there is a problem that skill is required for the mounting operation, and further, labor is wasted.

[0005] The present invention solves the above-mentioned problems, and
An object of the present invention is to provide a caster structure that can be securely mounted.

[0006]

In order to solve the above-mentioned problems, in a caster structure in which a U-shaped pedestal 2 provided with casters is provided on the lower surface of a trunk 3 for travel, the U-shaped pedestal 2 has two opposite sides. The caster 1 is rotatably held by the center shaft 22 at the tip of the center shaft 22, and the outer surface is formed between the center shaft 22 and a bent side between the two opposite sides of the U-shaped base 2 and the other side continuously provided. A lateral fitting groove 231 formed by a fitting 23 protruding perpendicular to the longitudinal direction and parallel to the side surface, and a longitudinal direction provided between the lateral fitting groove 231 and the bent side. Directional positioning rail 21.

The caster mounting portion of the trunk 3 forms a caster housing recessed groove 4.
A positioning rail groove 41 provided at a position corresponding to the positioning rail 21 of the U-shaped pedestal 2, a fitting wall 42 protruding laterally so as to fit with the horizontal fitting groove 231, and a U-shaped pedestal 2. Is provided with a through-hole 43 for fitting to the positioning rail groove 41 and the fitting wall 42 and then fixing the fitting with the fastening screw component 5.

[0008]

As described above, by fitting the U-shaped pedestal 2 to the caster mounting portion of the trunk 3, the predetermined position and the mounting direction are restricted, and the trunk is completely fixed by fixing with the fastening screw parts 5. Fixed to 3.

[0009]

FIG. 1 is an exploded perspective view of a caster structure of a travel trunk of the present invention, FIG. 2 is an assembled sectional view, and FIG.
FIG. 4 is a perspective view of a travel trunk, and FIG.

As shown in FIG. 1, the caster structure of the present invention comprises a caster housing concave groove 4 which is a caster mounting portion of the trunk 3, and a caster assembly housed in the caster housing concave groove 4.

The caster assembly comprises a U-shaped base 2 and casters 1. The U-shaped pedestal 2 rotatably holds the caster 1 at the tip of two opposing sides with a central shaft 22, and the other side connected to the opposite two sides of the U-shaped pedestal 2 at right angles to the outer surface. A horizontal fitting groove 231 formed by a fitting 23 provided perpendicularly to the longitudinal direction and in parallel with the side surface, at a position between the bent side of the central axis 22 and the central axis 22.
And one or more positioning rails 21 are provided in parallel in the longitudinal direction between the lateral fitting groove 231 and the bent side.

The concave groove 4 for accommodating the caster has a positioning rail groove 41 provided at a position corresponding to the positioning rail 21 of the U-shaped pedestal 2 inserted therein, and a laterally extending groove 231 to be fitted therein. And a through hole 43 for fixing the U-shaped pedestal 2 to the positioning rail groove 41 and the fitting wall 42 and then fixing the U-shaped pedestal 2 with the fastening screw component 5. is there.

Next, the above-mentioned caster structure is connected to the trunk 3
The method of attaching to the device will be described. The positioning rail 21 of the U-shaped pedestal 2 of the caster assembly in which the caster 1 is already mounted on the U-shaped pedestal 2 with the center shaft 22 is fitted into the positioning rail groove 41, and the fitting wall 42 is laterally fitted. It is inserted so as to fit into the mating groove 231, and is finally tightened and fixed from the inside of the trunk 3 with the tightening screw part 5.

[0014]

As described above, the caster assembly is assembled separately from the trunk 3, and the assembled caster assembly is inserted into the caster accommodating concave groove 4 of the trunk 3, so that accurate positioning (the mounting direction is also determined).
And the contact surface between the caster assembly and the trunk 3 is large,
And because they are intricately engaged, there is no wobble.

Further, the fixing method is as follows.
The work is extremely simple, and the number of assembling steps can be reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a caster structure of a travel trunk of the present invention and a side view of a caster portion.

FIG. 2 is an assembled sectional view of the caster structure of the travel trunk of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2 (casters are not sectioned).

FIG. 4 is a perspective view of a travel trunk.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 caster 2 U-shaped pedestal 21 positioning rail 22 center axis 23 fitting fitting 231 lateral fitting groove 3 trunk 4 caster housing concave groove 41 positioning rail groove 42 fitting wall 43 through hole

Claims (1)

(57) [Scope of request for utility model registration] In a caster structure in which a U-shaped pedestal provided with casters is provided on a lower surface of a travel trunk, the U-shaped pedestal rotatably holds a caster at a front end portion of two opposing sides with a central axis and has an outer shape. A fitting is provided on a side surface of the U-shaped pedestal so as to project perpendicularly to the longitudinal direction and in parallel with the side surface between the bent side of the opposite two sides of the U-shaped pedestal and another side continuously provided and the center axis. A horizontal fitting groove formed by an alloy tool; and a longitudinal positioning rail provided between the horizontal fitting groove and the bent side. The caster mounting portion of the travel trunk has a caster receiving concave shape. Forming a groove,
A positioning rail groove provided in the caster housing concave groove at a position corresponding to the positioning rail of the U-shaped pedestal; a fitting wall protruding laterally so as to fit with the lateral fitting groove; A caster structure for a travel trunk, comprising: a through hole for fixing a letter-shaped pedestal to the positioning rail groove and the fitting wall, and then fixing the pedestal with a fastening screw component.