JPH1072092A - Transfer container with brake mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lightweight and inexpensive container which can surely function. SOLUTION: A brake mechanism 6 is attached to castors 3 which are provided at the underside of a container body 1 and serve as front wheels (or rear wheels) with respect to the advancing direction of transfer and the mechanism 6 and a brake lever 7 provided at a handle 5 of the body 1 are interconnected by a wire W so that the operation force of the lever 7 is transmitted to the mechanism 6. By using the wire W to transmit the operation force, even if there are variations in the size of a resin container, such variations can be absorbed and parts for transmitting operation forces are not required and hence the number of parts can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large-sized transport container (300 L to 800 L) used for transporting garbage discharged from various places such as buildings, underground shopping malls and station premises, or for transporting heavy objects in factories and the like. More specifically, the present invention relates to a transport container provided with a braking mechanism.

[0002]

2. Description of the Related Art As a container for transporting garbage and heavy objects, a container-type container having a caster provided at the bottom of a box-shaped container body having an open top is generally widely used. .

There are two types of container-type containers of this type: resin molded products and metal containers. A transport container with a braking mechanism is generally a metal container, and a transmission for operating the braking is provided. The means is also composed of a combination of an iron wire or a metal cam part.

[0004]

By the way, conventionally, a resin-made transfer container has not been provided with a braking mechanism as seen in, for example, registered design number 772954. When trying to do so, the weight was placed on the worker and placed a heavy burden.

[0005] On the other hand, a metal transport container provided with a braking mechanism has a heavy own weight, and exerts a load on work even when traveling on flat ground. In consideration of such a point, if the braking mechanism attached to the metal transport container is to be mounted on the resin transport container, the number of components increases and much time is required for assembly. In addition, since the resin container has a large variation in shrinkage, a variation occurs when assembling the metal parts, which causes a problem that it is difficult to obtain a stable braking performance.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a lightweight, inexpensive, resin-made transfer container provided with a brake mechanism that functions reliably.

[0007]

In order to achieve the above object, the present invention is directed to a box-shaped resin having a rectangular opening on the upper surface as shown in FIGS. In a transport container provided with transport casters 3, 3 and 4, 4 at the bottom of the container body 1, among the casters, the casters 3, 3 which become front wheels (or rear wheels) with respect to the direction of transport. A brake mechanism 6 is provided, and a brake lever 7 having a fulcrum disposed on a handle 5 provided on one of the opposite short side walls 1c of the container main body 1 is provided. Are connected via a wire W, and the operating force of the brake lever 7 is transmitted to the braking mechanism 6 by the wire W.

Here, as the caster used for the transport container of the present invention, it is preferable to use a wheel made of rubber or resin in order to reduce the weight. Further, as a specific configuration of the braking mechanism, for example, as shown in FIGS. 3 and 4, a metal plate (a pressing plate 6) having a projection 6d on its surface is used.
a) is applied to the outer peripheral surface of the wheel 3a using the force of the spring 6c to obtain a braking force. In such a configuration, a plate to which a material having high frictional resistance is adhered may be used as a member that applies a braking force to the wheel 3a.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are a side view and a rear view, respectively, showing the structure of the embodiment of the present invention.

The container body 1 is a box-shaped resin molded product comprising long side walls 1a and 1b, short side walls 1c and 1d, and a bottom plate 1e, and only the upper surface thereof is opened. A cut-out recess (not shown) is provided on the upper portion of the long side wall 1a of the container body 1 to make it easy to take in and out the contents. The lid 2 attached to the container main body 1 is similarly processed by a resin molded product into a shape that covers the opening (including the notched concave portion) of the container main body 1.

[0011] Rubber or resin casters 3, 3, 4, 4 are mounted on the bottom surface of the container body 1 at four corners (front, rear, left and right). In this example, among the four casters, the casters 3, 3 located on the left side in FIG. 1 are front wheels, and the casters 4, 4 located on the right side are rear wheels.
Also, a braking mechanism 6 described later is attached to the casters 3 and 3 serving as front wheels to form a fixed caster, and the casters 4 serving as rear wheels are provided.
4 is a free caster.

The container body 1 has a short side wall 1 on the rear wheel side.
Above c (for example, at a position of 850 mm ± 200 mm from the ground), a handle 5 used for transporting the container is provided. As shown in FIGS. 3 and 4, the braking mechanism 6 includes a metal pressing plate 6a disposed above the wheels 3a of the caster 3, a rotating shaft 6b that rotatably supports the pressing plate 6a, and A tension coil spring 6c is provided.

The tension coil spring 6c has one end fixed to the end of the pressing plate 6a and the other end fixed to the side surface of the wheel bearing 3b of the caster, and is wound around the rotating shaft 6b of the pressing plate 6a in an extended state. And its tensile force (restoring force)
Thereby, the pressing plate 6a is pressed against the outer peripheral surface of the wheel 3a. A projection 6d is formed on the surface (pressing surface) of the pressing plate 6a by burring or the like in order to increase the braking force.

On the other hand, the handle 5 of the container body 1 is provided with a brake lever 7. The brake lever 7 is rotatably supported by a rotation shaft 7a provided on a support member 5a of the handle 5 (see FIG. 5), and one end of a wire W is connected to a tip (action point) thereof.

The other end of the wire W is connected to the tip of the pressing plate 6a of the braking mechanism 6. In addition, wire W
Are covered with an outer P except for both ends. Both ends of the outer P are provided with an adjusting bracket 8a provided near the side of the braking mechanism 6 and an adjusting bracket 8b provided near the lower side of the brake lever 7, respectively. Supported by

Here, in the above structure, the braking mechanism 6
Wire W from the pressing plate 6a to the brake lever 7
The length is such that the wire W has a certain amount of slack in a state where the brake lever 7 is not operated (the state of FIG. 1) and a tensile force acts on the pressing plate 6a when the brake lever 7 is operated. Has been adjusted.

Next, the operation of this embodiment will be described with reference to FIG. 5 and FIGS. 3 and 4. First, when the brake lever 7 is in the free state, as shown in FIG. 3, the pressing plate 6a of the braking mechanism 6 is pressed against the outer peripheral surface of the wheel 3a of the caster 3, and the wheel 3a is in a state of being braked.

In this state, when the brake lever 7 is grasped and moved downward, the wire W is pulled up as shown in FIG. 5, and its longitudinal movement is changed to lateral movement at the corner of the container body 1 and the braking mechanism 6 is moved. Is transmitted. Due to the transmission force of the wire W, the pressing plate 6a is pulled in the lateral direction, whereby the pressing plate 6a rotates upward about the rotation shaft 6b and separates from the outer peripheral surface of the wheel 3a as shown in FIG. 6a is in a free state (braking released). Even if the brake lever 7 is moved in this manner, the outer P
There is no problem because the wire W slides in the outer P without moving.

Thereafter, when the brake lever 7 is released to a free state, the pressing plate 6a is pressed against the outer peripheral surface of the wheel 3a by the elastic force of the extension coil spring 6c of the braking mechanism 6, and the braking is automatically applied. At the same time, the tensile force is transmitted to the end of the brake lever 7 via the wire W, and the brake lever 7 automatically returns to the original position (FIG. 1).

Here, in the above embodiment, since the brake lever 7 is located near and above the handle 5, the brake can be easily braked by gripping the brake lever 7 together with the handle 5 when transporting the transport container. Can be released, and after the transport container has been transported to the target location, the transport container can be fixed only by releasing the handle 5 and the brake lever 7, which is very convenient.

Further, even in a case where a heavy object is accommodated and transported on a downhill, the transport container is automatically braked only by releasing the brake lever 7, and no braking force is required. The burden of the force applied to the worker can be reduced, and a heavy object can be easily and safely transported.

In the above embodiment, a tension coil spring is used as a means for applying a force for pressing the pressing plate 6a against the wheel 3a. However, a compression coil spring or a leaf spring may be used instead. The present invention can be implemented.

In the above embodiment, the front wheels of the transport container are fixed casters. However, the rear wheels may be provided with a braking mechanism having a structure as shown in FIG. 3, and the rear wheels may be fixed casters.

Further, in the above embodiment, when the brake lever 7 is moved downward to apply a pulling force to the wire W, the braking by the braking mechanism 6 is released and the wheels 3a of the casters 3 are in a free state. It is configured as follows,
It is also possible to adopt a configuration opposite to this, that is, a configuration in which a braking force is applied to the wheels 3a when the brake lever 7 is moved downward.

[0025]

As described above, according to the present invention,
A brake mechanism is attached to the caster mounted on the bottom of the container body, and the brake mechanism and the brake lever that operates the brake mechanism are connected by wires to transmit the force, so the dimensions of the resin container vary. Even if there is, the variation can be absorbed by the slack of the wire, so that stable braking performance can be obtained.

Here, when the brake mechanism attached to the caster is operated by the brake lever provided on the short side wall of the container body, it is necessary to change the transmitting direction of the operating force from the vertical direction to the horizontal direction. In the past, metal cams etc. were used as a means to change the direction of the force transmission, but in the case of wires, such accessory parts are unnecessary, so the number of parts is reduced and the assembly work of parts is also Easy.

As described above, by adopting the structure of the present invention, it becomes possible to realize a lightweight and inexpensive resin-made transfer container provided with a braking mechanism that functions reliably.

[Brief description of the drawings]

FIG. 1 is a side view showing a structural configuration of an embodiment of the present invention.

FIG. 2 is a rear view showing the structure of the embodiment.

FIG. 3 is a diagram illustrating a caster 3 and a braking mechanism 6 used in the embodiment of the present invention.

FIG. 4 is a diagram showing a caster 3 and a braking mechanism 6 in an extracted manner.

FIG. 5 is a diagram illustrating the operation of the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 1c Short side wall 2 Cover 3 Caster (front wheel) 3a Wheel 4 Caster (rear wheel) 5 Handle 6 Braking mechanism 6a Pressing plate 6b Rotary shaft 6c Tension coil spring 6d Projection 7 Brake lever 7a Rotary shaft W Wire P Outer

Claims (2)

[Claims] 1. A transfer container provided with a transport caster at the bottom of a box-shaped resin container main body having a rectangular opening on the upper surface, wherein the caster has a front wheel or a rear wheel with respect to a traveling direction of the transport. A brake mechanism attached to a caster serving as a ring; and a brake lever having a fulcrum disposed on a handle provided on one of the opposite short side walls of the container main body. A transport container provided with a brake mechanism, wherein the transfer force is transmitted to the brake mechanism by a wire. 2. The transport container according to claim 1, wherein the wheels of the casters are made of rubber or resin, and the braking mechanism is a metal plate having a projection on its surface or a plate on which a material having high frictional resistance is adhered. Is pressed against the outer peripheral surface of the wheel using the force of a spring to obtain a braking force.