JPH041017Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a transport caster attached to a box-shaped container, and particularly relates to a transport caster that can be housed in a part of the box-shaped container.

[Conventional technology]

Traditionally, transport casters attached to box-shaped containers are: (1) Fixed type, usually with multiple units attached to the bottom of the container, and (2) Fork-shaped support frame that supports wheels at the tip. to support the wheels,
There is a type that has a bearing interposed between the rear end portion and the lower surface of the container to make the direction variable, but in (1), there is also a type that uses a flat disc-shaped ordinary wheel, Some use spherical wheels that allow them to change direction.

In addition, in (1) and (2) above, one end is hinged to the container surface, and the other end is fixed to a small plate that can be locked to the container surface, and a part of the container is recessed. Some models also have casters that can be stored away when they are not needed.

[Problem that the invention attempts to solve]

However, in the prior art as described above, the casters of the type (1) above cannot change direction and are therefore advantageous only for conveyance in straight sections, while the casters of the type (2) above cannot control the direction. It can be difficult and even dangerous when the load is heavy and the transport speed is high.

Furthermore, among the types (1), spherical wheels are expensive to manufacture, are unsuitable for heavy objects, and are prone to failure.

In addition, if each of the above types (1) and (2) is retractable using a small plate attached with a hinge, the container must be turned over each time the caster is stored or taken out, and the front and back directions of the small plate must be checked. It's a hassle because you have to change it and re-lock the small plate.

This idea was developed against the background of the above-mentioned circumstances, and in conjunction with the extension and contraction of the handle of the traction means, it is possible to easily project the transport caster from a part of the box-shaped container or move the transport caster with a single action. It is an object of the present invention to provide a storage type transport caster that can be stored in a part of a container.

[Means for solving problems]

This invention is intended to solve the above-mentioned problems, and in a transport caster consisting of a traction means, an actuating means, a caster means, and a storage means, each of which is fitted into a box-shaped container, the traction means: A handle formed by molding a bar material having a hollow tubular shape at least at both ends into an inverted U shape, and having upper sockets each having a polygonal opening provided at both mutually parallel ends of the handle, and the working means includes: Two parallel to each other, each
The upper end cross-sectional shape fits into the opening shape of the upper socket, and at least a part of the upper socket is provided with a twisted part twisted at an angle of about 90° around the axis,
The caster means consists of a sliding rod slidably inserted into the handle through a hollow tube in the handle from the upper socket, and the caster means has a pair of wheels, usually in the shape of a fork, and supports each wheel at the tip thereof. It consists of two support frames and two lower sockets that fit and hold the respective lower ends of the sliding rods on the rear end side of each support frame. A clamping part for rotatably holding the caster means is provided in each of the two recessed parts, and the handle is slidably clamped to a part for storing the handle in an upper part of the one surface of the box-shaped container. When the handle of the traction means is slid vertically relative to the clamping portion, the handle expands and contracts outwardly or inwardly with respect to the container, and Due to the mating sliding action between the socket and the twisted portion provided at the upper end portion of the sliding rod, a pair of wheels in the caster means can be rotated in a box-like manner through the lower socket and the support frame around the axis of the lower socket. To provide a retractable conveyor caster that can be turned in two directions, perpendicular or parallel to one surface of a container.

[Effect]

By pulling the handle of the traction means upward, it has an approximately 90° twisted portion with a polygonal cross section corresponding to both ends of the handle's polygonal opening, and is slidably inserted into the handle. By sliding the two sliding rods against the handle, they are rotated by about 90 degrees in opposite directions, so that they are parallel to one side of the container, and the container is The caster means housed in the recessed part of the box-shaped container is projected at right angles to one surface of the box-shaped container and can be used for the purpose of conveyance. , when the horizontal part of the handle is accommodated in the handle-accommodating part recessed in the upper part of the container, and at the same time the sliding rods are inserted into each end of the handle, they are fixed to the lower socket by the action of the twisting part. The supporting frame of the wheel is rotated horizontally with respect to a surface on which the storage means of the container is provided, so that the caster means are stored in the recesses in the storage means.

〔Example〕

A preferred embodiment of this invention will be described based on the accompanying drawings.

FIG. 1 shows an embodiment of the "retractable transport caster" according to this invention, which includes a handle 10 as a traction means, and sliding rods 20, 20 as an operating means.
, caster means 30, 30, and storage section 40. In addition, what is illustrated with a dashed line is a box-shaped container into which this embodiment is fitted.

The handle 10 of the traction means is a rod-shaped body formed into an inverted U-shape and having at least both lower end portions formed in the shape of a hollow tube. Upper sockets 11 and 1 each have a prismatic opening.
1 is fitted.

The sliding rods 20, 20 of the actuating means are composed of two rod-shaped bodies arranged parallel to each other, and the cross-sectional shape of the upper end of each sliding rod 20 is similar to that of the upper socket 1.
It is adapted to fit with the opening shape of No. 1, and
Near the upper end of the sliding rod, the sliding rod 20
Twisted portions 21, 21 each having a twist angle of approximately 90° are provided around the axis of the shaft. In this embodiment, the sliding rod 20 has a rectangular prism shape, but if the upper end of the sliding rod 20 is formed in a shape that matches the opening shape of the upper socket 11 by a certain length, the sliding rod 20 The cross-sectional shape may be any cross-sectional shape as long as the twist can be effectively formed.

The caster means 30, 30 each have a wheel 3.
1 and 31, a support frame 32 which is usually fork-shaped and rotatably supports the wheel 31 at its tip, and a lower end 22 of the sliding rods 20 and 20 on the rear end side of each support frame 32. It consists of lower sockets 33, 33 which are fitted into each other.

The storage means 40 has approximately semi-elliptical recesses 41, 41 recessed below one side of a box-shaped container 50 (for example, a travel trunk) so as to face each other, and the recesses 41, 41 A clamping portion (not shown) for rotatably clamping the lower sockets 33, 33 in the caster means 30 is provided therein. Moreover, this storage means 40 has a longitudinal groove 42 recessed above the one side of the box-shaped container 50 as a part for storing the horizontal portion of the handle 10, and at the same time, a longitudinal groove 42 is provided at both ends of the groove 42 to accommodate the handle 10. As a part to sandwich each part so that it can slide,
An upper clamping portion 43 is formed.

Hereinafter, the operation of this invention will be explained based on FIGS. 2 and 3.

FIG. 2 shows the handle 10 of the traction means, the sliding rods 20, 20 of the actuating means, and the caster means 3.
0 and 30 are stored in the storage means 40. As shown in this figure, the storage means 4
0 is formed by recessing or perforating one surface of the box-like container 50, so that the handle 10, sliding rods 20, 20, and caster means 30, 30 are all fitted into the box-like container 50. It is set as. Note that 411 is a lower clamping part in which the lower sockets 33, 33 are rotatably clamped in the recessed parts 41, 41, and 43 is an upper clamping part in which the handle 10 is slidably clamped. Department.

On the lower surface of the box-shaped container 50, there are fixed casters 51, 51, 5, usually consisting of four pieces, which also serve as a foot.
1, 51 are fixed and, for example, in a travel trunk, if the trunk is lightweight and can be carried by the handle on the top of the trunk, it can be carried by the handle, and if the trunk is heavy, it can be carried over a short distance in a straight line. These fixed casters 51 can transport only the following items.

FIG. 3 shows the retractable transport caster according to this embodiment in a usable state, and when the handle 10 of the traction means is pulled upward as far as possible, the handle 10 becomes hollow and tubular in FIG. Each sliding rod 20 is inserted into the handle 10 by fitting and sliding between the approximately 90° twisted portion 21 provided near the upper end of the sliding rod 20 and the upper sockets 11 provided at both ends of the handle 10. Since the lower sockets 33, 33, which fit and fix the respective lower ends of the slide rods 20, 20, are also rotated in opposite directions by about 90 degrees, the lower The support frames 32, 32 formed integrally with the sockets 33, 33 are raised, and the wheels 31, 31 rotatably supported at the tips of the support frames 32, 32 are moved against one surface of the box-shaped container 50. Protrude vertically. Therefore, when you pull the handle toward you, the 2-foot 5
The box-shaped container 50 is tilted using fulcrums 1 and 51,
The floor surface (not shown) and the wheels 31, 31 in the caster means 30 come into contact, allowing the handle 10 to pull and change the direction of the box-shaped container 50.

[Effect of idea]

The retractable transport caster according to this invention is an inverted U
Since it has an extremely simple structure consisting of a letter-shaped handle, two sliding rods, and a pair of caster means, it is easy to manufacture and at a low cost. Since it is fitted into a small space near one surface, it is excellent in terms of practicality and aesthetics.

In addition, the handle makes it easier to change direction and control speed, which is advantageous in terms of safety and efficiency.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a preferred embodiment of this invention, Fig. 2 is a side view showing its storage state, and Fig. 3 is a perspective view of a preferred embodiment of the invention.
The figure is a side view showing the usable state. Main symbols in the drawing, 10...handle, 11...
... Upper socket, 20 ... Sliding rod, 21 ... Twisted portion, 22 ... Lower end, 30 ... Caster means, 31 ... Wheel, 32 ... Support frame, 33
...Lower socket, 40...Storage means.

Claims (1)

[Scope of Claim for Utility Model Registration] In a transport caster consisting of a traction means, an actuating means, a caster means, and a storage means, each of which is fitted into a box-like container, the traction means has at least both ends in the shape of a hollow tube. It is a handle made of a bar formed into an inverted U shape, and upper sockets each having a polygonal opening are provided at both mutually parallel ends of the handle.The operating means are two mutually parallel upper sockets. ,
The cross-sectional shape of the upper end fits into the opening shape of the upper socket, and at least a part of the upper socket is provided with a twisted part twisted about 90 degrees around the axis, and at the same time, the hollow tube of the handle is passed from the upper socket to the handle. The caster means includes a pair of wheels, two support frames which are usually fork-shaped and support each wheel at their tips, and a rear end of each support frame. The storage means is comprised of two lower sockets adapted to fit and hold the respective lower ends of the sliding rods on the sides, and the storage means is arranged in two recesses recessed in the lower part of one side of the box-like container, respectively. A clamping part for rotatably holding the caster means is provided, and a part for storing the handle and a part for slidably clamping the handle are formed in an upper part of the one surface of the box-shaped container, and When the handle of the traction means is slid in the vertical direction with respect to the clamping portion, the handle is expanded and contracted outwardly or inwardly with respect to the container, and at the same time Due to the sliding action of the fitting with the torsion, the pair of wheels in the caster means can be rotated through the lower socket and the support frame at right angles or relative to one surface of the box-like container, about the axis of the lower socket. A retractable transport caster characterized by being able to change direction in two parallel directions.