JP3679754B2 - Furniture moving device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a furniture moving apparatus that can move furniture lightly, and in particular, the operation can be performed lightly and easily even in women and girls, and the furniture is moved up and down in a horizontal state by simultaneously moving up and down a plurality of moving wheels. The present invention relates to an apparatus for moving furniture.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as means for easily moving furniture, there is a device for moving furniture by inserting a material having a low sliding resistance, for example, a plate-shaped sliding tool made of synthetic resin, into the lower portion of the furniture pedestal.
Further, as another furniture moving device, there has been proposed a device in which a plurality of movable wheels that can be moved up and down are incorporated in the lower part of the pedestal of the furniture, the moving wheels are operated one by one, and the furniture is lifted and moved.
[0003]
[Problems to be solved by the invention]
By the way, in the method of using the sliding plate in the conventional furniture moving device, the heavy furniture must be lifted once when the furniture is moved, and the sliding plate is inserted into the lower part of the pedestal. It is not possible to lift furniture by weak women and girls, and if a sliding plate is always inserted in the lower part of the furniture, the furniture will move unexpectedly and become dangerous when an earthquake occurs. There was a problem that there was.
In addition, in an apparatus that incorporates a plurality of moving wheels in the lower part of the pedestal of furniture, it is necessary to individually operate the plurality of moving wheels. There was a problem of inviting dangerous situations.
[0004]
In view of the problems of the above-described conventional furniture moving device, the present invention can be easily and easily operated by women and girls, and the furniture can be raised and lowered in a horizontal state by simultaneously raising and lowering a plurality of moving wheels. It is an object to provide a furniture moving device.
[0005]
[Means for Solving the Problems]
To achieve the above object, the furniture moving apparatus according to the first aspect of the present invention is provided with a plurality of moving wheels that support furniture so that it can be moved up and down by a screw rod and a nut, and a worm wheel is attached to one of the screw rod and the nut. and, furniture arranged a worm which meshes with the worm wheel, and interlocking the plurality of connecting rods to rotate with extended between adjacent worm, and so as to rotate the worm by the connecting rod A moving device, wherein each of the plurality of moving wheels is fixed to an individual lifting platform, and the lifting platform is fixed to furniture by a screw rod and a nut along guide rods arranged at four corners. The movable wheel, the lifting platform, the base, the guide rod, the screw rod, and the nut are used as a unit. Characterized in that so as to dispose four or more furniture.
[0006]
In this furniture moving device, a worm wheel is attached to one of a screw rod and a nut for raising and lowering a moving wheel, a worm meshing with the worm wheel is arranged, and a plurality of connecting rods rotating in conjunction with each other are provided. Since it is installed between adjacent worms and the worm is rotated by this connecting rod, it is possible to raise and lower all the moving wheels that support the furniture at the same time. Since the worm and the worm wheel are used to transmit power for raising and lowering the moving wheel, furniture can be raised and lowered smoothly and lightly even by women and girls with weak power.
[0007]
In order to achieve the same object, the furniture moving apparatus according to the second aspect of the present invention is configured such that a plurality of moving wheels that support furniture are installed on a mounting base disposed between the furniture and the mounting base is attached to a plurality of mounting bases. A plurality of connecting rods that can be moved up and down by a screw rod and a nut, a worm wheel is attached to one of the screw rod and the nut, a worm that meshes with the worm wheel is arranged, and the worm wheel rotates in conjunction with the worm wheel Is constructed between adjacent worms, and the worm is rotated by the connecting rod.
[0008]
This furniture moving device has a worm wheel attached to one of a screw rod and a nut that lifts and lowers a mounting base on which a moving wheel is installed, and a worm that meshes with the worm wheel is arranged and rotated in conjunction with the worm wheel. Since a plurality of connecting rods are installed between adjacent worms and the worm is rotated by the connecting rods, all the moving wheels can be lifted and lowered simultaneously via the mounting base, which makes it heavy. The furniture can be moved up and down while maintaining the horizontal state at all times, and the power to raise and lower the moving wheels is transmitted using the worm and the worm wheel, so that even a weak girl can lift the furniture smoothly and lightly. Can be made.
And by moving the moving wheel up and down via the mounting base, the furniture can be supported by increasing the number of moving wheels without increasing the number of screw rods and nuts, worm wheels and worms, and connecting rods. By supporting the furniture with the moving wheels, the large and heavy furniture can be moved up and down more stably at a low cost.
[0009]
In this case, the connecting rod can be interlocked via a bevel gear.
[0010]
Thereby, a connection rod can be interlocked and rotated with a simple structure.
[0011]
Further, at least one worm can be configured to be operated from the outside.
[0012]
Thereby, furniture can be raised / lowered easily by operation from the exterior of furniture.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the furniture moving device of the present invention will be described below with reference to the drawings.
[0014]
1 to 8 show a first embodiment of the furniture moving device of the present invention.
This furniture moving device is provided with a plurality of moving wheels 4 that support furniture so as to be lifted and lowered by screw rods 7 and nuts 1.
And this furniture moving apparatus fixes the worm wheel 6 to the screw rod 7, arrange | positions the worm | warm 5 which meshes | engages with this worm wheel 6, and adjoins the three connecting rods L which rotate interlockingly. It is constructed between the worms 5 so that each worm 5 is rotated by an equal amount by the connecting rod L.
When the positions of the screw rod 7 and the nut 1 are reversed and the screw rod 7 is fixed to the moving wheel 4 side, the worm wheel 6 can be fixed to the nut 1.
[0015]
As shown in FIG. 3, the moving wheel 4 is usually provided as a load support portion of a base B disposed in the lower part of the furniture F, for example, as casters at four corners of the base B, and is adjacent to the left and right and front and rear directions. By connecting the connecting rods L between the worms 5 and operating the worm 5 of one moving wheel 4 from the outside of the pedestal B, all the moving wheels 4 can simultaneously move up and down via the connecting rods L. Is configured to do.
In this case, the direction of the screw of the worm 5 of the moving wheel 4 arranged at the four corners of the base B is made different between adjacent ones as shown in FIGS.
[0016]
In this embodiment, the unitized moving wheels 4 are arranged at the four corners of the base B. However, when the furniture F is long or heavy, for example, if necessary, The moving wheel 4 can be arranged at a total of six or more places in the four corners of the pedestal B and two places in the central portion, and the place where the moving wheel 4 is arranged is limited to that of the present embodiment. is not.
[0017]
As shown in FIGS. 1 and 4 to 7, the moving wheel 4 is fixed to a lifting platform 3 that is integrally provided with a nut 1, and the lifting platform 3 is fixed to a base B of furniture F. The base 2 is provided so as to be movable in the separating direction along the guide rod 8.
A screw rod 7 is screwed onto the nut 1, and a worm wheel 6 is fixed to the upper portion of the screw rod 7 so as to rotate integrally. The worm wheel has an upper shaft 61. The shaft 2 of the base 2 is rotatably fitted.
As a result, the worm wheel 6 is rotated via the worm 5, so that the lift 3 and the moving wheel 4 are guided to the guide rod 8 and accurately determined by the action of the screw rod 7 and the nut 1. It will go up and down in position.
The screw rod 7 is integrated with the worm wheel 6 by fitting a base end portion of the screw rod 7 to a screw portion formed on the boss portion 62 of the worm wheel 6 and fixing the screw rod 7 with a fixing screw 63.
[0018]
As shown in FIGS. 6 and 7, the worm 5 has shaft holes 23, 24 in which shafts 51, 52 projecting from both ends are formed on the opposite side walls 22 of the base 2 so as to have the same axial center. And is supported so as to be rotatable.
In the worm 5 disposed at the corner of the base B and corresponding to the first and final positions of the power transmission path, only one connecting rod L is disposed as shown in FIG. In the moving wheel 4 disposed in the middle of the power transmission path, as shown in FIG. 6, the two connecting rods L are disposed so as to be substantially orthogonal.
[0019]
Bevel gears 91 and 92 are provided at the end portions of the two connecting rods L that are substantially orthogonal to each other. By engaging the bevel gears 91 and 92, the two connecting rods L rotate together. can do.
The connecting rod L includes shafts 52 and 93 having bevel gears 91 and 92 fixed to one end thereof, and polygonal rods such as hexagonal rods connected to the other ends of the shafts 52 and 93 via a connector J. It is comprised by.
In the illustrated embodiment, the number of teeth of the two bevel gears 91 and 92 is the same. However, the number of teeth is not limited and is connected so that power is transmitted through the connecting rod L. As long as all the moving wheels 4 are moved up and down by an equal amount, the gear ratio is not limited.
[0020]
Although the moving wheel 4 is not specifically limited, as shown in FIG. 8, it is desirable to use a vehicle whose traveling direction can be freely changed according to the application of the furniture moving device.
The moving wheel 4 has a plurality of screw holes 41H formed at positions corresponding to the moving wheel mounting screw holes (not shown) drilled in the lower surface of the lifting / lowering table 3 so that the moving wheel 4 can be fixed to the lifting / lowering table 3 with screws. A moving wheel frame 42 is attached to a shaft (not shown) that can be turned via a bearing (not shown), and a wheel 43 is attached to the moving wheel frame 42 via a shaft 44. Like to do.
[0021]
Further, one of the worms 5 of the moving wheel 4 is formed with an operation hole (not shown) into which an operation tool (not shown) such as a turning operation handle can be inserted so that the turning operation can be performed from the outside of the base B. Has been.
The operation hole is formed in the shaft 23 of the worm, and the operation tool insertion hole H is also formed in the side plate of the base facing the operation hole.
[0022]
On the other hand, the guide rod 8 is formed in a cylindrical shape, and a plurality of the guide rods 8 are used and fixed in the guide rod fitting insertion holes 26 drilled at the four corners of the base 2 so that the guide rod 8 is directed downward. The tip 3 of the guide rod 8 is slidably inserted into the guide holes 32 drilled at the four corners of the lift 3 so that the lift 3 is moved in the longitudinal direction of the guide rod 8. It is possible to move accurately along the direction.
As shown in FIG. 1 (A), the allowable moving distance is the distance from the state where the pedestal B of the furniture F is installed on the floor, as shown in FIG. It is determined so as to be able to travel on the moving wheel 4 after being levitated about 10 mm.
Note that the flying distance is not limited.
[0023]
Next, operation | movement of this furniture moving apparatus is demonstrated.
First, an arbitrary operation tool (not shown) is inserted from the operation tool insertion hole H formed in the base B, and is inserted into an operation hole (not shown) formed in the shaft 23 of the worm, and the worm 5 is rotated from the outside. Operate.
[0024]
Thus, when the worm 5 of one moving wheel 4 is rotated in the forward direction by the operating tool, first, the worm wheel 6 meshing with the worm 5 is rotated, and the screw rod 7 to which the worm wheel 6 is fixed is rotated. By rotating with respect to the nut 1, the lifting platform 3 moves in the downward direction.
At the same time, the rotation of the worm 5 operated by the operating tool is transmitted to all the moving wheels 4 through the connecting rod L, and the entire lifting platform 3 moves in the downward direction by an equal amount.
As a result, all the moving wheels 4 are brought into contact with the floor surface, and the moving wheels 4 are further lowered, whereby the pedestal B can be lifted from the floor surface and the furniture can be moved.
[0025]
In addition, when furniture is fixedly installed after moving to a predetermined position, by rotating the worm 5 of the moving wheel 4 in the opposite direction, all the elevators 3 are similarly raised by an equal amount, and the moving wheel 4 By floating, the base B is directly supported on the floor surface and the furniture is installed in a stable state.
Thus, in the furniture moving apparatus of the present embodiment, all the moving wheels 4 are simultaneously lifted or lowered by rotating the worms of all the moving wheels 4 and the worm wheels by an equal amount via the connecting rod L. The furniture F can be moved up and down safely while maintaining the horizontal state.
[0026]
9 to 10 show a second embodiment of the furniture moving device of the present invention.
In this furniture moving apparatus, a plurality of moving wheels 4 and 4 ′ supporting the furniture F are installed on a mounting base 10 disposed between the furniture F and the mounting base 10 is connected to a plurality of screw rods 7 and nuts. 1 can be moved up and down.
And this furniture moving apparatus arrange | positions the worm wheel 6 in the nut 1, arrange | positions the worm | warm 5 which meshes | engages with this worm wheel 6, and several linking rods L which rotate together are adjacent to the worm. The worm 5 is rotated by the connecting rod L.
When the positions of the screw rod 7 and the nut 1 are reversed and the screw rod 7 is fixed to the mounting base 10 side, the worm wheel 6 can be fixed to the nut 1.
In the present embodiment, the base 2 is not necessarily fixed to the furniture F as long as the furniture 2 can stably support the furniture F, and the furniture F is placed on the base 2. Furniture F can be installed.
[0027]
The mounting base 10 is made of a rigid plate formed slightly smaller than the bottom surface of the furniture, and the moving wheels 4 and 4 ′ are totaled at the four corners of the mounting base 10 and two places in the middle of the two sides in the width direction. Eight are installed.
Further, as shown in FIG. 10, the configurations of the screw rod 7 and nut 1, the worm wheel 6 and worm 5, and the connecting rod L are the same as those in the first embodiment, and therefore detailed description thereof is omitted. Then, in addition to such a configuration, the moving wheels 4 at the four corners are fixed so that the mounting base 10 is sandwiched between the lifting platform 3 and the moving wheels 4.
In this case, it is sufficient that the four moving wheels 4 ′ installed at the intermediate portion in the width direction of the mounting base 10 only have a caster function, and the lifting mechanism composed of the screw rod, nut, etc. can be omitted. .
[0028]
Thus, in the furniture moving apparatus of the present embodiment, the worm wheel 6 is fixed to the nut 1 that moves up and down the mounting base 10 provided with the moving wheels 4 and 4 ′, and the worm 5 that meshes with the worm wheel 6 is disposed. In addition, since a plurality of connecting rods L that rotate in conjunction with each other are installed between adjacent worms 5 and the worms 5 are rotated by the connecting rods L, all the moving wheels 4, 4 'are mounted on the mounting base. 10 can be moved up and down at the same time, so that even heavy furniture can be moved up and down while always maintaining a horizontal state, and transmission of power for moving up and down the moving wheels 4 and 4 ′ is transmitted to the worm 5 and the worm wheel 6. Therefore, the furniture can be raised and lowered smoothly and lightly even by women and girls with weak power.
Then, by moving the moving wheels 4 and 4 ′ up and down via the mounting base 10, without increasing the screw rod 7 and nut 1, the worm wheel 6 and worm 5, and the connecting rod L, the moving wheels 4 and 4 ′ The furniture F can be supported by increasing the quantity.
Thereby, by supporting the furniture F with more moving wheels 4, 4 ′, the large and heavy furniture F can be moved up and down more stably at a low cost.
[0029]
As mentioned above, although the Example of the furniture movement apparatus of this invention was described, the furniture movement apparatus of this invention is not limited to description of this Example, In the range which does not deviate from the meaning, it can change suitably. Is possible.
[0030]
【The invention's effect】
According to the furniture moving apparatus of the first invention, the worm wheel is attached to one of the screw rod and the nut for moving the moving wheel up and down, the worm meshing with the worm wheel is disposed, and the worm wheel rotates in conjunction with the worm wheel. Since a plurality of connecting rods are installed between adjacent worms and the worm is rotated by the connecting rods, it is possible to raise and lower all the moving wheels that support the furniture at the same time. It can be moved up and down while maintaining the horizontal state at all times, and the power to raise and lower the moving wheel is transmitted using the worm and worm wheel, so that women with weak power can raise and lower furniture smoothly and lightly. Can do.
Furthermore, the furniture moving device fixes a plurality of moving wheels to individual lifting platforms, and screw rods and nuts along guide rods arranged at four corners with respect to a base fixed to the furniture. And the moving wheel, the lifting platform, the base, the guide rod, the screw rod and the nut as a unit, and four or more units are arranged on the furniture. If it is long or heavy, for example, moving wheels can be arranged at a total of six or more locations, for example, the four corners of the pedestal and two central portions.
[0031]
Moreover, according to the furniture moving apparatus of the second invention, a worm wheel is attached to one of a screw rod and a nut for moving up and down a mounting base on which a moving wheel is installed, and a worm that meshes with the worm wheel is disposed. In addition, a plurality of connecting rods that rotate in conjunction with each other are installed between adjacent worms, and the worms are rotated by the connecting rods. As a result, even heavy furniture can be moved up and down while maintaining a horizontal state at all times, and the power to raise and lower the moving wheels is transmitted using the worm and worm wheel, so even women with weak power can do it. Furniture can be raised and lowered smoothly and lightly.
And by moving the moving wheel up and down via the mount, furniture can be supported by increasing the number of moving wheels without increasing the number of screw rods and nuts, worm wheels and worms, and connecting rods. By supporting the furniture with the moving wheels, the large and heavy furniture can be moved up and down more stably at a low cost.
[0032]
Further, by linking the connecting rod via the bevel gear, the connecting rod can be rotated in conjunction with a simple structure.
[0033]
Furthermore, by configuring the at least one worm so that it can be operated from the outside, the furniture can be easily raised and lowered by an operation from outside the furniture.
[Brief description of the drawings]
FIG. 1 shows an embodiment of a furniture moving device according to the present invention, where (A) is a cross-sectional view showing a state when the furniture is installed, and (B) is a cross-sectional view showing a state where the furniture is raised for movement. .
2A and 2B are external views of a moving wheel, in which FIG. 2A is a front view, FIG. 2B is a bottom view, FIG. 2C is a side view, and FIG.
FIGS. 3A and 3B show a state in which the furniture moving device of the present invention is attached to furniture, FIG. 3A is a front view, FIG. 3B is a bottom view, and FIG. 3C is a front view during operation.
4A is a bottom view, FIG. 4B is a front view, FIG. 4C is a left side view, and FIG. 4D is a right side view.
5A is a plan view, FIG. 5B is a front view, and FIG. 5C is a side view.
6A is a plan view showing a base on the right rear side of the furniture, and FIG. 6B is a plan view showing the base on the right front side of the furniture.
7A is a plan view showing a base on the left rear of the furniture, and FIG. 7B is a plan view showing a base on the left front of the furniture.
8A is a front view, FIG. 8B is a side view, FIG. 8C is a bottom view, and FIG. 8D is a plan view.
FIG. 9 is a front view showing a second embodiment of the furniture moving apparatus of the present invention.
10A and 10B show the furniture moving device of the embodiment, wherein FIG. 10A is a cross-sectional view showing a state when the furniture is installed, and FIG. 10B is a cross-sectional view showing a state where the furniture is raised for movement.
[Explanation of symbols]
B Base F Furniture L Connecting rod 1 Nut 2 Base 3 Lifting table 4 Moving wheel 4 'Moving wheel 5 Worm 6 Worm wheel 7 Screw rod 8 Guide rod 91, 92 Bevel gear 10 Mounting base

Claims (4)

A plurality of moving wheels that support furniture are provided so as to be movable up and down by a screw rod and a nut, a worm wheel is attached to one of the screw rod and the nut, and a worm that meshes with the worm wheel is disposed; and A furniture moving device in which a plurality of connecting rods that rotate together are installed between adjacent worms, and the worms are rotated by the connecting rods , wherein the plurality of moving wheels are mounted on individual lifting platforms. The base is fixed to the furniture, and the base is fixed to the furniture so that the base can be moved up and down by screw rods and nuts along the guide rods arranged at the four corners. platform, the guide rod, and a unit of the screw rod and a nut, is characterized in that so as to dispose four or more said unit furniture house The mobile device.   A plurality of moving wheels that support the furniture are installed on a mounting base disposed between the furniture and the mounting base is provided so that it can be moved up and down by a plurality of screw rods and nuts. A worm wheel is attached, a worm that meshes with the worm wheel is disposed, and a plurality of connecting rods that rotate in conjunction with each other are installed between adjacent worms, and the worm is rotated by the connecting rod. A furniture moving device characterized by the above.   3. The furniture moving apparatus according to claim 1, wherein the connecting rod is interlocked via a bevel gear.   The furniture moving device according to claim 1, 2 or 3, wherein at least one worm is configured to be operable from the outside.

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