JPH11334306A - Caster device and structure of moving and fixing storage body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify changes between movement and fixation to enable positive fixation and to carry out fixation positively to a ceiling in a structure mounted with storage body. SOLUTION: A vertically movable part 11 is provided with an elevating plate 111, a pantagraph jack mechanism 112, and casters 113. A fixing part 12 has caster plate 121. The pantagraph jack mechanism has a horizontally rotating shaft 112A, a pair of link arms 112B and cams 112D at both the ends of each link arm, and a revolving shaft 112C connected to each link arm. The sill plate is provided with groove parts 122 abutted to the cams 3 to receive its turning force. The groove parts of the sill plate in the fixed part receive the turning force of the cams evolved by the rotation of the cams due to the movement of the link arms caused by the rotary operation of the horizontally rotating shaft 112A in the pantagraph jack mechanism. The result allows adjustment in floor movement by means of the casters, floor fixing by grounding the sill in the fixed part, and the elevation of the elevating plate in the vertically movable part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable and fixed structure for a wheel device and a housing. More specifically, the invention of this application relates to the movement and predetermined position of furniture such as chests, cabinets, shelves and various storage bodies therefor in living spaces such as houses and offices, as well as pianos and arts and crafts. The present invention relates to a new wheeling device that can easily and reliably perform the fixing by the above-mentioned method, and a movable fixing structure of a storage body using the same.

[0002]

2. Description of the Related Art Conventionally, in a living space such as a house or an office, various storage units such as a chest, a cabinet, a shelf, and a wagon, or a base plate of a piano or arts and crafts have a stopper on a lower surface thereof. The casters are movable and fixed freely. As these storage bodies play a role to divide living space,
Consideration is given to the fact that it can be moved as appropriate and can be fixed so as not to move at a predetermined position.

In recent years, there has been provided a mechanism in which an adjuster bolt or the like is disposed between the storage body and a ceiling surface to prevent the storage body from being destroyed due to collapse or shaking during an earthquake. It has been considered.

[0004]

However, there are several problems with the conventional means and structure for moving and fixing the storage body and the like. First of all, in the case of various storage bodies and pianos, casters are often directly attached to the lower surface and legs, so if the weight is heavy or the storage is in the state, When the object is moved by the caster and fixed by the caster, there is a problem that the lower surface member such as the storage body has to be thicker to increase the strength. Increasing the thickness of the lower surface member rather causes an increase in weight, which has a great effect on the design and cost of the configuration of the storage body itself.

Further, since the position is fixed by receiving the weight by the casters, there is a problem that a local compressive stress is applied to the floor surface by the casters and the floor surface is easily damaged. Second, when the position is fixed by the casters, it is easy to forget the stop operation by the stopper, and even if the stop operation is performed, the stop operation may be canceled due to an earthquake or the like.
There is a problem that the danger that the storage body or the like suddenly moves cannot be avoided.

For this reason, it is not necessary to increase the thickness of the lower surface member of the storage body in place of the conventional means for moving and fixing by the casters with stoppers, and at the time of fixing, the floor surface is damaged by the local compressive stress by the casters. There has been a need for a new movable and fixed means for a storage body or the like, which has no drawbacks and does not have to worry about sudden movement even if the stop operation is forgotten.

[0007] In addition, with respect to the fixing of the storage body to the ceiling surface, the method using a conventional adjuster bolt or the like is as follows.
Fixing operation on the ceiling surface is not easy, especially when the ceiling surface is not horizontal, it is troublesome, and it is difficult to fix it with sufficient force with sufficient power, so it is more convenient In addition, there was a need for a new method for firm and secure fixing.

Therefore, the invention of this application also provides new means for moving and fixing and means for securely fixing the storage body to the ceiling surface, which can solve the above-mentioned problems. It is intended to be.

[0009]

Means for Solving the Problems The present invention is based on the object of solving the above-mentioned problems. First, there is provided a wheeled device having a vertically movable section and a fixed section. Is provided with a lifting plate and a pantograph jack mechanism and a caster fixed to the back surface thereof, and the fixed portion has a base plate arranged around the lifting and lowering movable portion, and the pantograph jack mechanism includes: A horizontal rotating shaft, a pair of link arms which approach or separate in a direction orthogonal to the rotation with this rotation, and a rotating shaft having cams at both ends thereof and connected to the link arm are provided. In addition, the base plate of the fixed part is provided with a groove part which comes into contact with the cam and receives its rotational force, and is connected to this by the movement of the link arm accompanying the rotation operation of the horizontal rotation shaft of the pantograph jack. When the cam rotates through the rotating shaft, the groove of the fixed base plate receives the rotational force of the cam, and the fixed base mount plate separates from the floor surface and the caster of the movable part moves up and down. The grounding of the fixed part base plate and the rising and falling state of the movable part of the caster moving away from the floor surface are variable, and the floor surface is moved by the casters and the floor surface is fixed by the grounding of the fixed part base plate. Further, the present invention provides a wheeled vehicle device characterized in that a vertically movable plate can be freely raised.

Secondly, the invention of this application is characterized in that a storage body is mounted on an elevating plate of the above-mentioned base wheel apparatus, and the storage body is movable and fixed by the wheel base apparatus. The movable fixed structure of the storage body, and thirdly, in this movable fixed structure, a spring and an elastic body are provided on a portion of the storage body opposed to the ceiling surface when the elevating plate is raised in a fixed state of the pedestal device. Alternatively, the present invention also provides a movable fixing structure of a storage body, wherein a ceiling surface fixing mechanism for pressing and fixing a plate-like member to a ceiling surface via an adjuster bolt is provided.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention of this application is to provide a base wheel device having the above-mentioned features and a movable fixing structure of a storage body using the same.
An embodiment of the present invention will be described in more detail.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 of the accompanying drawings is a plan view <A> and a front view <B> of an essential part of an example of the undercarriage device of the present invention. First, an example will be described with reference to FIG. 1. In the wheeling apparatus (1) having a movable part (11) and a fixed part (12) according to the present invention, the movable part (11) includes a movable plate. (111), a pantograph jack mechanism (112) fixed to the back surface thereof, and a caster (113) are provided, and the fixed portion (12) is provided with a base plate (121) arranged around the vertically movable portion (11). )have. The pantograph jack mechanism (112) has a pair of link arms (112) that move toward or away from each other in a direction orthogonal to the horizontal rotation axis (112A) with this rotation.
B) and a rotating shaft (112) having cams (112D) at both ends thereof and connected to a link arm (112B).
C). Further, the fixing part (12)
The base plate (121) is provided with a groove (122) which comes into contact with the cam (112D) and receives its rotational force. In this undercarriage device (1), as exemplified in FIGS. 1, 2 and 3, the pantograph jack mechanism (1)
The horizontal rotation axis (112A) of the 12) is mounted on the undercarriage plate (121).
When rotated by a tool such as a wrench inserted through an opening (123) provided in the pantograph, the pantograph-shaped quadrilateral arm expands or contracts in a diagonal line, and accordingly, a pair of link arms (112B) are displaced. As described above, it moves toward or away from the horizontal rotation axis (112A) in the direction orthogonal to the horizontal rotation axis (112A). Such movement of the link arm (112B) causes the cam (112D) to rotate via the rotating shaft (112C) connected to the link arm (112B), and the fixed part base plate (12
The groove (122) of 1) receives the rotational force of the cam (112D).

The rotation of the cam (112D) and this cam (1D)
12D) to which the groove portion (122) receives the rotational force.
21), the pantograph jack mechanism (11)
The relative movement and positional relationship between the vertically movable unit (11) having the cam (112D) as a part of 2) and the fixed unit (12) having the undercarriage plate (121) are determined. That is, as illustrated in FIGS. 2 and 3, the stationary part base plate (12
1) The state of contact and detachment from the floor surface (2) and the grounding of the caster (113) of the movable part (11), and the grounding of the base plate (121) and the caster (11) of the movable part (11). The state of ascending and descending from the floor surface (2) of 113) is variable.
Movement of the floor due to the
The floor is fixed by the grounding of 1) and the elevating plate (1
11) is free.

Referring to FIGS. 2 and 3 further, FIGS. 2 and 3 show the following state. The lower end of the base plate (121) of the fixed part (12) is separated from the floor surface (2), and the caster (1) of the movable part (11) moves up and down.
13) is in contact with the floor (2), and the wheel set (1) can move on the floor (2) by the casters (113) that are grounded.

In this state, the cam (112D) is set at 0
° Rotational state can be considered. The lower end of the trolley plate (121) of the fixed part (12) is grounded to the floor (2), and the caster (113) of the vertically movable part (11) is also grounded to the floor (2). Thus, the movement of the wheel device (1) on the floor (2) by the casters (113) has just been stopped.

In this state, the horizontal rotation axis (112) of the pantograph jack mechanism (112)
A) is rotated to bring the link arm (112B) closer to the horizontal rotation axis (112A) as shown by the arrows in FIGS. 2 and 3, and accordingly, the cam (112D) is rotated by, for example, 60 °. It is formed by this.

With the lower end of the pedestal plate (121) of the fixed part (12) being in contact with the floor (2), the vertically movable part (1)
The caster (113) of 1) is separated from the floor surface (2), and the wheel carrier device (1) cannot move on the floor surface (2) and is fixed at a specific position. This state is formed by rotating the cam (112D) further than the above state, for example, by rotating it to 120 °.

The change in the state depends on the distance (W) between the fulcrums of the pair of opposing link arms (112B) shown in FIG.
1) As (W2) and (W3) satisfy W1>W2> W3, the cam (112D) rotates as shown in FIG. 3, and the cam (1D) in the groove (122) of the underplate (121).
12D) is formed when the position of the rotation center: E shifts as H1 <H2 <H3.

In accordance with such a change, in the state, the lift plate (111) of the lift movable part (11) rises above the upper end of the undercarriage plate (121) by the height (H) shown in FIG. Will do. On the other hand, when the pantograph jack mechanism (112) is operated to rotate the cam (112D) to change the state, the caster (113) allows the wheel device (1) to move freely on the floor (2). Can be.

The elevation of the height (H) of the lifting plate (111) shown in FIG. 2 depends on the height width (H _A ) of the undercarriage plate (121) and the lifting movable part. (11) the height (H _B), as well as the cam rotation center axis by the rotation of the cam (112D) shown in Figure 3: can be determined by a trade-off movement distance of E (H3). In some cases, the height (H) may be set to zero.

For example, in the wheeling apparatus of the present invention exemplified above, the lifting plate (111) of the lifting movable part (11) is provided.
In this case, the weight of the container and other articles placed on it is affected by the weight of the load, even if a heavy object is placed, as compared with the conventional case where the casters are directly attached to the lower surface of the container or the article. It can be dispersedly supported, and it is not necessary to make the lower surface member such as the storage body thick. Since the fixing at the predetermined position is performed not by the casters (113) but by the grounding of the pedestal plate (121) surrounding the four circumferences, the local compressive stress of the floor surface as in the case of the conventional casters is reduced. The problem of damage to the floor surface due to the load hardly occurs.

Further, since the fixing is performed by the base plate (121), the position can be stably and surely fixed without a problem of unexpected movement due to vibration such as an earthquake. The switching between the movable state on the floor (2) by the casters (113) and the fixing of the position to the floor (2) by the wheel plate (121) is performed by the pantograph jack mechanism (112) of the present invention. Easy, slow and secure,
And it can be performed reliably.

The wheel bearing device (1) of the present invention having such excellent characteristics can be used for various purposes and applications. For example, storage objects such as chests, cabinets, shelves, etc., other furniture and fixtures, and arts and crafts, even those having relatively large weights, are placed on the elevating plate (111) and can be freely moved and fixed. can do. In the case of a storage body in a room such as a house, the movable body and the fixed body can be appropriately moved even when the stored goods are contained.

Further, in the trolley apparatus of the present invention, taking advantage of the feature of the trolley apparatus (1) forming the rising height (H) in FIG. 2, the upper end of the placed storage body is fixed to the ceiling surface. It can be combined with the structure. For example, as illustrated in FIG. 4, the storage body (3) is placed on the trolley device (1) of the present invention, and the storage body (3) can be freely moved or fixed with respect to the floor surface (2). At the time of fixing, the elevating plate (111) is raised to raise the storage body (3) placed thereon, and the ceiling fixing part (31) provided at the upper end of the storage body (3)
Is firmly pressed against the ceiling surface (4).

The ceiling fixing portion (31) may have a shape along the periphery of the storage body (3) similar to the undercarriage plate (121), a flat shape, an adjuster bolt, or the like. Is also good. These ceiling fixing parts (31)
Is firmly pressed and fixed to the ceiling surface (4) as the storage body (3) rises during fixing. Especially,
As shown in FIG. 5, the ceiling fixing portion (31), when the elevating plate is lifted in the fixed state of the wheel assembly (1),
It is also effective to adopt a ceiling surface fixing mechanism for pressing and fixing the plate-like member (31B) to the ceiling surface via a spring, an elastic body (31A), or an adjuster bolt to form a movable fixed structure of the storage body.

Here, various types of springs such as coil springs, leaf springs and disc springs, and various types of elastic bodies such as resin, metal and rubber are considered. Its shape is also a plate-like member (3
1B) depending on the relationship. In this structure, the ceiling surface is firmly stuck, sufficient fixation is secured, and even if the ceiling surface is not horizontal as shown in FIG. 5, it is evenly pressed and fixed via a spring or an elastic body (31A). be able to.

Thus, it is possible to prevent the storage body (3) from falling down and large swinging even if there is a vibration such as an earthquake. The effect of this prevention is more synergistically enhanced by the fixation by the trolley plate (121), unlike the conventional casters, in which the fixation by the trolley device (1) is performed. Further, the switching of the storage body (3) to the movable state is easy, and stable and reliable operation can be performed.

Of course, the invention of this application is not limited to the above examples, and it goes without saying that various details can be made.

[0029]

As described in detail above, the invention of this application has the following excellent effects.
That is, in the wheeling apparatus of the present invention, since the caster can be supported by the entire lifting plate as compared with the conventional case where the casters are directly attached to the lower surface of the storage body or the like, the lower surface member of the storage body or the like is thickened. It is not necessary to increase the strength
At the time of fixing, since the floor surface is fixed by the trolley plate, there is no problem that the floor surface is damaged by the load of the local compressive stress on the floor surface as in the case of the conventional caster.

At the time of fixing, there is no fear of forgetting the operation of the stopper as in the prior art, and there is no concern that the stopper suddenly starts to move due to vibration such as an earthquake. In addition, even a heavy storage body can be moved safely and easily, and switching between a movable state and a fixed state can be easily and reliably performed. In the structure in which the storage body is placed on the trolley device of the present invention, in addition, when fixed, the ceiling surface is firmly stuck, sufficient fixing can be secured, and even if the ceiling surface is not horizontal, the spring elastic body is used. To press and fix evenly. The danger and inconvenience caused by rocking or falling down during an earthquake will be prevented. Furthermore, the floor side and the ceiling can be fixed at the same time, and the release and movable operations can be performed at the same time, so that the operability is improved.

[Brief description of the drawings]

FIG. 1 is a plan view <A> and an essential part front view <B> illustrating an example of a wheel device of the present invention.

FIG. 2 is a cross-sectional view illustrating the movable, fixed and raised state changes of the undercarriage device as movements of a pantograph jack mechanism.

FIGS. 3A and 3B are a main part sectional view and a main part front view showing a state change of FIG. 2 as rotation of a cam.

FIG. 4 is a front view exemplifying a change in the state of movable, fixed, and elevating the storage body.

FIG. 5 is a schematic view illustrating a structure for fixing a storage body to a ceiling surface.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 wheel device 11 elevating movable portion 111 elevating plate 112 pantograph jack mechanism 112A horizontal rotation shaft 112B link arm 112C rotation shaft 112D cam E cam rotation center 113 caster 12 fixing portion 121 base plate 122 groove portion 123 opening 2 floor surface 3 storage Body 31 Ceiling fixing part 31A Spring, elastic body 31B Plate member 4 Ceiling surface

Claims (3)

[Claims] 1. A pedestal device having an elevating movable part and a fixed part, wherein the elevating movable part includes an elevating plate and a pantograph jack mechanism and a caster fixed to the back surface thereof, and the fixed part comprises The pantograph jack mechanism includes a pair of link arms that approach or move away from each other in a direction orthogonal to the horizontal rotation axis with this rotation. A cam is provided at both ends of the fixed arm, a rotating shaft connected to the link arm is provided, and a base plate of the fixed portion is provided with a groove portion which comes into contact with the cam and receives the rotational force. Due to the movement of the link arm following the rotation of the horizontal rotation shaft of the pantograph jack mechanism, the rotation of the cam via the rotation shaft connected to it causes the groove of the fixed base plate to receive the cam rotation force. , The state of the fixed part baseplate being separated from the floor surface and the grounding of the movable part of the lifting and lowering part, and the state of the grounding of the base part baseplate and the rising state of the moving part of the movable part being separated from the floor surface. Is variable, and the floor surface can be moved by casters, the floor surface can be fixed by grounding the base plate of the fixed portion, and the movable plate of the movable portion can be raised. 2. The movable fixing of a storage body, wherein a storage body is mounted on the elevating plate of the base wheel apparatus according to claim 1, and the storage body is movably fixed by the base wheel apparatus. Construction. 3. The movable fixed structure according to claim 2, wherein the plate-shaped member is provided on a portion of the storage body facing the ceiling surface via a spring, an elastic body, or an adjuster bolt when the elevating plate is raised in a fixed state of the wheel assembly device. A movable fixing structure for the storage body, comprising a ceiling surface fixing mechanism for pressing and fixing the container to the ceiling surface.