JPH10226202A - Caster equipped with auxiliary frame for step - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily pass on a small step by providing an auxiliary frame in the lower part of a wheel receiving frame, the bottom parts of both ends of the auxiliary frame being formed in slope shapes. SOLUTION: A wheel receiving frame is integrally formed with a semi- cylindrical cover 2, and a bearing 3 is vertically provided toward one end of this wheel receiving frame. In the upper part of this bearing 3, an attaching shaft 4 for attaching to a desk, chair, carrier vehicle or large bag is provided, and the cover 2 covers the upper halves of two wheels 5 and 5a. An auxiliary frame 6 is attached to the bottom part of the wheel receiving frame, and the temporary surfaces of both ends are formed in sloped-shapes by a long square timber having a width equal to that of the wheel receiving frame. Since the auxiliary frame 6 is fixed in such a way, if contact is made with a step during the movement of a desk, chair, carrier vehicle or large bag attached with this auxiliary frame, since the sloped surfaces of the auxiliary frame 6 are abutted with the corners of the step, stepping on the step is facilitated even if there is slight resistance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a caster of a two-wheel mechanism mounted on a chair, a desk, a transport vehicle, a large bag, and the like. The present invention relates to a caster with an auxiliary frame for a step, which is provided with an auxiliary frame formed in an inclined shape so that even small steps can be passed with little resistance.

[0002]

2. Description of the Related Art Conventionally, casters mounted on chairs, desks, carts, large bags, and the like are provided in various types with various mechanisms, and there are one type having one wheel and two types. Further, there is one having a braking function for fixing.

[0003]

However, these casters can easily move heavy chairs, desks, carts, large bags, and the like, and are excellent in function. Had to be lifted and moved each time. SUMMARY OF THE INVENTION An object of the present invention is to provide a caster with an auxiliary frame for a step having a mechanism capable of slightly passing a step (about the radius of a wheel of the caster).

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a method of mounting a bearing 3 having a mounting shaft 4 at a tip thereof on a wheel receiving frame 1.
Of the caster in which the two wheels 5, 5a are rotatably mounted on the wheel receiving frame 1 at the lower end of the wheel receiving frame 1, the bottoms of both ends are inclined a, b. Is provided with an auxiliary frame 6 formed in the above-mentioned manner.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The actual use of the present invention constructed as described above is as follows. When moving desks, chairs, transport vehicles, large bags, etc. with casters on a flat floor, there is no change from the past, but if there is a step during the movement, the step is less than the radius of the wheels of the caster. In this case, as shown in FIG.
b allows passage with almost no resistance.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view of the present invention, FIG. 2 is a front view of the present invention, FIG. 3 is a side view of the present invention, FIG. 4 is a diagram showing a use state of the present invention, and FIG. 5 is a perspective view of an auxiliary frame of the present invention. In the drawing, reference symbol A in the figure indicates a desk, and B indicates a floor. Reference numeral 1 denotes a wheel receiving frame 1 formed integrally with a semi-cylindrical cover 2. A bearing 3 is provided vertically near one end of the wheel receiving frame 1, and a desk, a chair, a transport vehicle, A mounting shaft 4 for mounting to a large bag or the like is provided, and the cover 2 includes two wheels 5, 5a.
So that it covers the upper half. Bearing 3 is mounting shaft 4
Desks, chairs, transport vehicles, large bags, etc. are fixed so that they can rotate freely through the device, so desks, chairs, transport vehicles, large bags, etc. with casters can be freely moved in any direction. be able to. The wheels 5, 5a are rotatably mounted at the center of the wheel receiving frame 1 with a shaft interposed therebetween. In the present invention, the auxiliary frame 6 is attached to the bottom of the wheel receiving frame 1 of the caster having such a configuration. As shown in each of the drawings, the auxiliary frame 6 is a long rectangular member having the same width as the wheel receiving frame 1 and the masks at both ends are formed in an inclined shape. Since the auxiliary frame 6 having the above-mentioned shape is fixed to the bottom surface of the wheel receiving shaft 1, it hits a step portion while moving a desk, a chair, a cart, a large bag, or the like on which the casters with the auxiliary frame are attached. In this case, as shown in FIG. 4, the inclined surface of the auxiliary frame comes into contact with the corner of the step, so that the step can be easily moved up with a small resistance.

[0007]

Since the present invention is constructed as described above, when moving a desk, a chair, a carrier, a large bag, etc. in a building, the height of an electric cord, a hose, a sill, or a step with an adjacent room. Even if there is, you can move easily. Also, as shown in FIG. 6, when both end portions of the auxiliary frame are further curved upward,
A step with a considerable height can also be cleared. Therefore, even if there is a step, it is not necessary to lift each time, so that there is a feature that even a slightly heavy article can be moved alone.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a front view of the present invention.

FIG. 3 is a side view of the present invention.

FIG. 4 is a diagram showing a use state of the present invention.

FIG. 5 is a perspective view of an auxiliary frame according to the present invention.

FIG. 6 is a diagram showing an application example of the auxiliary frame of the present invention.

[Explanation of symbols]

 Reference Signs List 1 wheel receiving frame 2 cover 3 bearing 4 mounting shaft 5 wheel 5a wheel 6 auxiliary frame A desk B floor

Claims (1)

[Claims] 1. A caster in which a bearing provided with a mounting shaft at its tip is provided integrally with a cover vertically near one end of a wheel receiving frame, and two wheels are rotatably mounted on the wheel receiving frame. , Inclined bottoms at both ends a. A caster with an auxiliary frame for a step, wherein an auxiliary frame formed in a b-shape is provided.