JPH092009A - Furniture - Google Patents

Abstract

(57) [Abstract] [Purpose] A caster having various functions is arranged so that even one person can easily perform a moving operation. [Structure] Casters 11a to 11d at four corners of the trolley unit 10
Of the casters 11a, which are in a diagonal positional relationship,
11c is provided with a lock mechanism for restraining the turning of the wheel with respect to the shaft and rotation of the wheel, and the caster 11b is a straight fixed caster. Instead of the straight-moving fixed casters, it is also possible to apply a turning fixed type caster having a mechanism for turning the wheels or turning and fixing the wheels to a support shaft of the wheels. Remaining casters 11d
In addition, the one that can always rotate and rotate the wheel with respect to the spindle is applied. [Effect] With a simple structure, the furniture can be easily handled, the manufacturing cost can be suppressed, and the furniture can be applied to all kinds of furniture.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention makes it possible for one person to easily perform a moving operation by arranging casters having various functions or by operating casters having various functions individually. In particular, the present invention relates to furniture such as a bed.

[0002]

2. Description of the Related Art Recently, various accessories such as a bed, a bed, a transfer bed (stretcher), an ICU bed, and other movable fixtures, such as a nursing care device, a ME device, and a medical device, have recently been developed. Equipped with a complicated structure and increased weight. Therefore, it is indispensable to provide casters in order to handle and carry these fixtures alone. Some of such casters are provided with a mechanism for locking the wheels and a mechanism for turning / fixing / releasing the wheels around a spindle. For example, in the bed 1 shown in FIG. 3, the casters 2 with stoppers having a mechanism for locking wheels are arranged diagonally,
A so-called turning fixed type caster 3, which has a mechanism for turning and fixing / releasing the wheel around the support shaft, is applied to the remaining casters. Further, as the bed, there has been proposed a mechanism having a mechanism in which all casters of the cart can be locked / unlocked by a depressing operation means or the like.

[0003]

However, in the case where a caster having a mechanism for locking the wheels so as to form a diagonal line as described above is arranged and the turning fixed type caster 3 is applied to the remaining casters, one person is required. When carrying operation, the direction is not stable, and there is a problem in straightness. On the other hand, in the case where all the casters can be operated by the step-in type operation means or the like, the mechanism is likely to be complicated and it is difficult to suppress the manufacturing cost. The present invention has been proposed in order to improve such a problem, and provides a fixture having a simple configuration, good maneuverability, and having no problem with straightness, particularly including a bed. The purpose is to:

[0004]

In order to solve the above-mentioned problems, the present invention has a carriage portion for supporting a main body, and casters are arranged at four corners of the carriage portion.
The present invention is characterized in that it is provided with a lock mechanism for restraining the turning of the wheel with respect to the spindle and the rotation of the wheel, and one caster restrains the turning with respect to the spindle of the wheel when the main body is moved. Further, the present invention has a trolley part for supporting the main body, and casters are arranged at four corners of the trolley part, and among these casters, a pair of casters having a lock mechanism is arranged so as to have a diagonal positional relationship. In addition, one of the remaining casters was a straight fixed caster that does not have a swivel function for the wheel spindle, and the remaining caster was a caster that was always free to swivel and rotate the wheel. It is characterized by Further, the present invention has a trolley part for supporting the main body, and casters are arranged at four corners of the trolley part, and among these casters, a pair of casters having a lock mechanism is arranged so as to have a diagonal positional relationship. In addition, one of the remaining casters uses a fixed swing type caster equipped with a mechanism that allows the wheel to turn or is fixed to the spindle of the wheel. It is characterized by applying casters that can always turn and rotate wheels with respect to. Further, the present invention has a trolley portion for supporting the main body, casters are arranged at four corners of the trolley portion, and among these casters, a pair of casters having a lock mechanism is arranged so as to have a diagonal positional relationship. At the same time, we applied a fixed rotation type caster equipped with a mechanism that makes it possible to rotate the wheels to the remaining casters and fixed the rotation, and one of these fixed rotation type casters was used to rotate the wheel with respect to the spindle It is characterized in that the rotation of the wheels is free.

[0005]

[Function] When the main body is moved, one caster is restrained from swinging with respect to the spindle of the wheel, all the remaining casters are set in the free state, and the main body is pushed in from the side where the caster side in the free state is arranged. The caster with the lock mechanism is in a state where the wheels rotate freely, and the casters that restrain the turning of the wheel with respect to the spindle can suppress the lateral swing by simply rotating the wheel and moving the main body. , The body does not wobble in any direction other than the moving direction. Instead of the casters that restrain the turning of the wheel support shaft, a straight-moving fixed caster without a turning function for the wheel support shaft, and a caster that can always turn the wheel support shaft and rotate the wheel may be used. For example, from the beginning, operations such as the fixed straight caster and the lock of the caster that is always free are unnecessary. In addition, in the case where the fixed rotation caster is arranged diagonally, the fixed rotation caster arranged on the side into which the main body is pushed in is moved together with the free rotation, and the other fixed rotation caster is rotated with respect to the support shaft of the wheel. Is restrained.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a fixture according to the present invention. FIG. 1 shows a carriage unit 10 in a bed. This cart part 1
Numeral 0 supports a main body (not shown), and casters 11 a to 11 d are arranged at four corners of the bogie unit 10.
Among the casters 11a to 11d, the casters 11a and 11c which are in a diagonal positional relationship are provided with a lock mechanism for restraining the turning of the wheel with respect to the support shaft and the rotation of the wheel. Further, the casters 11a, 11c
Of the casters 11b and 11d,
For b, a straight traveling fixed caster in which the wheel does not turn with respect to the support shaft of the wheel is applied. Note that, instead of the straight-moving fixed caster, a turning fixed caster having a mechanism that enables the wheel to turn or turns and fixes the support shaft of the wheel can also be applied. And the remaining casters 11d
, A caster is used in which turning of the wheel with respect to the support shaft and rotation of the wheel are always free. The casters 11a and 11c provided with the lock mechanism for restraining the turning of the wheel with respect to the spindle and the rotation of the wheel may have a well-known structure, and the illustration and description thereof are omitted here.

In the bed provided with the cart unit 10 having the above-described structure, the casters 11a, 1
When the lock mechanism of 1c is released to allow the wheels to freely rotate, and the main body is pushed in from the side where the casters 11d that can always rotate the wheels and rotate the wheels are arranged, the lock mechanism is released. A caster 11a equipped with
The wheels 11c are in a state in which the wheels freely rotate, and the casters 11b, which are straight-moving fixed casters, rotate without the wheels pivoting on a support shaft, so lateral swing can be suppressed, and the main body moves in the moving direction. It does not wander in directions other than. Therefore, the bed can be easily moved by one person, the configuration is simpler than that provided with a mechanism for interlocking all casters, and there is no problem in terms of cost. There is a great advantage that it can be applied to furniture.

The furniture according to the present invention has been described with reference to one embodiment. However, the present invention can also be implemented by the following configuration. That is, in the furniture such as a bed in this case, as shown in FIG.
Among the casters a to 11d, casters 11a and 11c that are in a diagonal relative position are provided with lock mechanisms that restrain the turning of the wheels and the rotation of the wheels, and are in the other diagonal positional relationship. Casters 11b, 11
For d, a caster provided with a swing-free / turn-fixed mechanism is applied.

In the furniture having such a bogie section 20, the wheels of the casters 11b or casters 11d arranged on the side into which the main body is pushed in are pushed in as free turning. Then, as in the above-described embodiment, the main body does not wobble in directions other than the moving direction. Therefore, even a single person can easily handle and move, and the configuration is simple, so that there is no problem in terms of cost.

Although the furniture according to the present invention has been described with reference to the embodiments, the casters 11a to 11d arranged on the carriage 10 lock all the wheels about the pivot and the rotation of the wheels. When a moving operation is performed, one caster is restrained from swinging with respect to the wheel spindle, all the remaining casters are set to the free state, and the main body is placed from the side where the caster side is in the free state. You may push in.

[0011]

As described above, according to the present invention, a furniture having a simple structure and easy to handle can be provided, the manufacturing cost can be suppressed, and a bed or any other type of furniture can be provided. It can be applied to furniture,
There is a big advantage.

[0012]

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a carriage portion of a bed, which is an example of a furniture according to the present invention.

FIG. 2 is a schematic plan view showing another example of a truck unit of a bed, which is an example of furniture according to the present invention.

FIG. 3 is an explanatory schematic plan view of a carriage unit of a bed at present.

[Explanation of symbols]

 10 cart unit 11a-11d caster 20 cart unit

Claims (4)

[Claims] Claims: 1. A trolley unit for supporting a main body, wherein casters are arranged at four corners of the trolley unit. These casters are provided with a lock mechanism for restraining turning of a wheel with respect to a spindle and rotation of the wheel. A fixture in which one caster restrains the turning of the wheel with respect to the support shaft during the movement operation of the. 2. A trolley part for supporting a main body, casters are arranged at four corners of the trolley part, and among these casters, a pair of casters having a lock mechanism is arranged so as to have a diagonal positional relationship. At the same time, a straight fixed caster that does not have a swivel function for the wheel spindle is applied to one of the remaining casters, and a caster that can always swivel around the wheel spindle and rotate the wheel is applied to the remaining caster. Furniture characterized by. 3. A dolly part for supporting a main body, casters are arranged at four corners of the dolly part, and among these casters, a pair of casters provided with a lock mechanism is arranged in a diagonal positional relationship. At the same time, a turning fixed type caster having a mechanism for turning the wheel or turning and fixing the wheel is applied to one of the remaining casters with respect to the wheel spindle, and the remaining casters are applied to the wheel spindle. The furniture is characterized by applying casters that can rotate and rotate wheels at all times. 4. A trolley part for supporting a main body, casters are arranged at four corners of the trolley part, and among these casters, a pair of casters having a lock mechanism is arranged so as to have a diagonal positional relationship. At the same time, we applied a fixed rotation type caster equipped with a mechanism that makes it possible to rotate the wheels to the remaining casters and fixed the rotation, and one of these fixed rotation type casters was used to rotate the wheel with respect to the spindle The furniture is characterized by free rotation of the wheels.