JPS6019602Y2 - Towable suitcase - Google Patents

Description

[Detailed explanation of the idea] Industrial applications.

This invention relates to an improvement of a suitcase that can be towed.

Conventional technology and its problems.

Conventionally, this type of suitcase has casters with brackets integrated at the top that are fixed directly to the bottom of the suitcase, but because the casters protrude from the bottom, it is difficult to carry people or objects when going up or down stairs. There is a risk of the suitcase getting caught on the steps, and the center of gravity of the suitcase becomes high, making it less stable when being towed.Also, when the suitcase is checked in as baggage, it is handled roughly and the casters receive a large impact, and sometimes the caster mounting part The disadvantage is that the bottom of the machine may cave in, or the casters may come off and leave holes in the bottom.

Composition of ideas.

Therefore, in order to eliminate such drawbacks, the present invention has a mounting system in which large-diameter, wide wheels are rotatably mounted on bearings in the concave wheel recesses provided at four appropriate locations on both ends of the bottom of the main body. A fitting is arranged so that the road half of the wheel is sunk into the wheel recessed part, and the mounting part and a frame-shaped reinforcing plate arranged inside the periphery of the wheel recessed part are fixed together by sandwiching the bottom part. Its purpose is to reduce the amount of protrusion of the wheels so that they do not get caught on objects, lower the center of gravity of the suitcase to increase stability and load capacity when towing, and to improve the installation of the wheels. It also strengthens the parts.

Example.

Next, embodiments of the present invention will be described based on the drawings.

In the figure, S is the main body of the suitcase, and the main body S has a frame on the edge and a lid that can be opened and closed using a hinge, similar to a general suitcase.

Although not shown, a handle, a lock, etc. are provided on the upper part of the main body.

On one side of the main body S, that is, at appropriate positions on both ends of the bottom portion (hereinafter simply referred to as the bottom portion) 1 during towing, four recessed wheel recess portions 2 are provided.

The size, shape, and depth of the recess of the wheel recessed portion 2 are appropriately determined depending on the type of wheel 3 to be attached, such as its zero-diameter width.

Next, the mounting tool 4 is formed by forming a wheel mounting hole by drilling a hole in the approximate center of a metal plate of a required thickness in the same shape as the hole shape of the wheel recessed portion 2, and at the same time, a bearing is formed on the opposite edge of the wheel mounting hole. The wheel 3 is rotatably mounted by a shaft 6 mounted between the bearing parts 5, 5.

The wheels 3 are larger in diameter and wider than conventional casters.

Incidentally, the above-mentioned fixture 4 may be a belt-shaped metal plate bent into a substantially rectangular shape.

Then, the mounting fixture 4 on which the wheel 3 is pivoted is brought into contact with the bottom part 1 from outside the main body so that the road half of the wheel 3 is sunk into the wheel recessed part 2, and the wheel recessed part on the inner surface of the bottom part 1 of the main body A reinforcing plate 8 is brought into contact with the inside of the periphery of the bottom part 1, and the mounting tool 4 and the reinforcing plate 8 are fixed together with rivets or the like.

The reinforcing plate 8 is a plate-shaped member made of metal or synthetic resin having a required strength and is shaped like a frame to cover the inside of the periphery of the wheel recessed portion 2.

By the way, the wheel recessed part 2 is made into a hole instead of a concave shape, and a cover 7 is provided from inside the main body S instead of the reinforcing plate 8 to completely cover the wheel 3 and the hole of the wheel recessed part, and the bottom part is sandwiched. Therefore, it is also possible to fix the fixture 4 and cover 7 together with rivets or the like to prevent moisture from entering the main residence (
Figure 2).

Effect of invention.

Therefore, according to the present invention, the mounting device with the wheel is mounted from the outside of the main body so that the road half of the large-diameter, wide wheel is sunk into the wheel recessed part, and the substantially lower half is exposed outside the bottom. Since the bottom is fixed together with the reinforcing plate (or cover) that is in contact with the inner surface of the bottom of the main body, it is extremely easy to install, lowering the center of gravity of the suitcase and increasing stability and load capacity when towing it. At the same time, the strength of the bottom wheel attachment part can also be increased.

Furthermore, by changing the thickness of the mounting portion of the fixture, there are many practical advantages such as the ability to freely change the amount of protrusion of the wheels depending on the size of the suitcase.

[Brief explanation of drawings]

As for the drawings, Fig. 1 shows an embodiment of the present invention, a is a partially enlarged perspective view showing the mounting part of the wheel, b is a partially sectional view of a, and Fig. 2 is a partially enlarged perspective view showing the mounting part of the wheel.
The figure is an enlarged sectional view showing another embodiment. S is the main body, 1 is the bottom, 2 is the wheel recess, 3 is the wheel, 4 is the fixture, 5 is the bearing, 6 is the shaft, 7 is the cover, and 8 is the reinforcing plate.

Claims (1)

[Scope of utility model registration request] A mount with a large-diameter, wide wheel rotatably attached to the bearing is placed in four concave wheel recesses provided at appropriate positions at both ends of the bottom of the main body, and the road half of the wheel is inside the wheel recess. A suitcase that can be towed, characterized in that the mounting tool and a frame-shaped reinforcing plate arranged inside the periphery of the wheel recessed part are fixed together by sandwiching the bottom part.