JPH0352721Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention is a method for moving a heavy object that has a hollow space at the lower end that is open toward the installation surface and has a structure that allows human hands to reach the hollow space from above. The present invention relates to a mobile device for carrying out transportation. Examples of such heavy items include storage furniture, and the portion surrounded by the architrave with its lower surface open and the bottom plate that can be opened and closed corresponds to the lower end space here. Here, storage furniture broadly includes chests of drawers, cupboards, bookshelves, cabinets, lockers, etc. In addition, the above-mentioned heavy objects include a vertical piano, an upright vending machine, a decorative installation, and the like.

BACKGROUND ART AND PROBLEMS THEREOF For example, storage furniture is often large and heavy, and once installed, it is often difficult to move it. Some storage furniture is equipped with casters at the bottom end, but this makes the installation unstable, and if the installation surface is a tatami mat or rug, heavy loads will be placed on the casters, making it difficult to install for a long period of time. This is not suitable as it deforms the installation surface. In addition, ease of movement is required for other heavy objects, but in many cases it is not desirable to use moving parts such as casters all the time from the standpoint of stability and aesthetics during installation. .

In order to meet such demands, the present invention provides a heavy object moving device that allows stable installation of the heavy object by the lower end of the object at all times, and that protrudes from the lower surface of the heavy object as needed to facilitate movement. The purpose is to

Means for Solving the Problems The object of the present invention is to move a heavy object having a structure that has a space at the lower end that is open toward the installation surface and that allows a human hand to reach the space from above. a frame with an open upper and lower surface that can be stored and installed in the lower end space;
The arm device includes an arm device and a lever device mounted in the frame, and the arm device has its base end pivotally supported by one end and the other end inside the frame, respectively, and is rotatable in the vertical direction. The lever device includes two arms whose distal ends extend in directions facing each other, and a moving member attached to the lower surface of each arm on the proximal side of the distal end. a lever that is pivoted on the inside of the frame substantially above the tip of the other arm and rotatable in a direction along the arm; and a lever that is pivoted on the inside of the frame substantially above the tip of the other arm a rotor that is pivotably supported and is rotatable in a direction along the arm and in contact with the other arm; and a connection that connects the lever and the rotor so as to transmit rotation of the lever. The lever includes an elongated operating portion extending from the pivot support and capable of rotating from a substantially horizontal tilted position to the upright side and vice versa; and a short operating portion that rotates while abutting the one arm, and the lever includes:
When the operating section is rotated from the tilted position to the upright side, the operating section pushes down the one arm and the rotor pushes the other arm based on the transmission by the connecting member. The lever is lowered and held in the depressed state by a suitable detent mechanism, while the lever engages the actuating part and the rotor when the detent mechanism is released and the operating part is returned to the tilted position. The moving member is configured to release the arm from being pressed down by the
When the arm is pushed down based on the rotation of the lever, it is made to protrude downward from the frame, and when the push-down is released by returning the lever, the arm can be lifted inward of the frame. This is achieved by an internal heavy object moving device featuring the following features.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a longitudinal cross-sectional view of a wardrobe in which the moving device according to the present invention is housed and attached to the architrave;
The figure is a cross-sectional view thereof. The moving device 1 is normally attached to both the left and right sides of storage furniture, but the figure shows only one of them. This moving device 1 includes an arm mounting 2 mounted within a frame 4 and a lever 3. The frame 4 has a rectangular box shape in plan view with open upper and lower sides, and is fixed to the inner surface of the architrave D with screws. The arm device 2 includes a first arm 2 whose base end is supported by shafts 200 and 210 at the front and rear ends of the frame and is rotatable in the vertical direction.
0 and a second arm 21, and moving members 22 and 23 attached to these arms.
The first arm 20 and the second arm 21 have support portions 201 and 211 that are approximately horizontal when the moving members 22 and 23 are in a state of protruding downward from the frame 4, as shown in FIG. and pressure receiving portions 202, 2 that bend and extend downward from the support portion toward the tip side.
12 each. In this embodiment, the shafts 200 and 210 are further provided with spiral springs 203 and 213.
is applied, and both ends thereof abut against the inner wall of the frame 4 and the arms 20, 21, thereby acting to lift the arms 20, 21. The moving members 22 and 23 are attached to the lower surfaces of the arm supports 201 and 211, respectively. The moving members 22 and 23 are made of swivel casters in this embodiment, but other materials may be used as appropriate, such as sliding plates whose bottom surfaces are coated with fluororesin or have a smooth metal surface. The lever device 3 includes a lever 30 supported by a shaft 300 substantially above the tip of the first arm 20, a rotor 31 supported by a shaft 310 substantially above the tip of the second arm 21, and a lever. 30 and a connecting member 32 that connects the rotor 31. The lever 30 includes a pair of plates 301, 30
1 are connected by rods 302 and 303, and a shaft 300 is provided between each plate 301 and the frame. The lever 3 has a long operation part 30 from the shaft support by the shaft 300 to the rod 302.
4, and a short operating section 305 extends from the shaft support to the rod 303, and the operating section 304 and the operating section 305 form an obtuse angle with each other as shown. When the lever 30 is tilted toward the second arm 21 so that the operating section 304 becomes approximately horizontal, the operating section 3
05 is arranged so as to extend upward (see FIG. 3), and a stopper pin 306 for maintaining this posture is attached to the frame 4.
The lever 30 is rotatable from the tilted position to the side where the operating section 304 stands up, and as the operating section 304 rotates, the operating section 305 is moved to the first position by the rod 303.
The pressure receiving portion 202 of the arm is pressed down. As is clear from FIG. 3, the pressure receiving part 202 is
In the stored state of the moving member 22, the shape is determined so that the distance from the lever shaft 300 becomes shorter toward the tip, and based on this, the first arm 20 is pushed down as the actuating part 305 rotates. It's becoming like that. In this embodiment, the pressure receiving part 202
The rod 303 is locked when the actuating portion 305 reaches a position slightly past the point (dotted chain line A in FIG. 1) corresponding to the reaction force from the first rod.
A locking portion 204 is provided by bending the tip of the arm 20, and this structure forms a detent mechanism. The rotor 31 includes a pair of plates 31
1,311 are connected by a rod 312, and a shaft 310 is provided between each plate 311 and the frame 4. The connecting member 32 is a rod 32 provided on the lever 30 and the rotor 31.
Lever 3
0 rotation is transmitted to the rotor 31. When the rotor 31 is rotated in this manner, the rod 312 is brought into contact with the pressure receiving portion 212 of the second arm, thereby pushing down the second arm 21. The shape and consideration of the second arm 21 for this purpose (Fig. 1B) The locking part 21 at the passing position
The shape of the detent mechanism according to 4 is the first arm 20.
This is the same as explained above. in this way,
Both the first arm 20 and the second arm 21 are activated by rotating the lever 30 from the tilted position (FIG. 3) to the upright side (FIG. 1).
04 and the rotor rod 214, and is held in the depressed position by the aforementioned detent mechanism. When lever 30 is reversely rotated from the upright side,
Once the above-mentioned consideration point is crossed again, the detent is released, and when the lever 30 is returned to its original tilted position, the depression on the arms 20, 21 is released. The moving members 22 and 23 are configured to protrude downward from the frame 1 against the weight of the chest of drawers when the arm is pressed down, and can be lifted inward to the frame 1 when the arm is released. There is. Therefore, by attaching the frame 4 at an appropriate height within the architrave, the moving members 22 and 23 can be made to protrude from the lower surface of the architrave D and to be accommodated within the architrave. Note that in this embodiment, the torsion spring 20
3, 213 urges the arms 20, 21 to fit inward in the frame, so that the moving members 22, 23 do not descend under their own weight even when the chest of drawers is lifted, and the architrave It is designed to be kept inside. Also, a portion of the bottom plate of the chest of drawers is removable so that the lever 30 can be rotated manually.

4 and 5 each show the main parts of an embodiment different from the above, and similar parts or parts in the figures are given the same numbers.

In the example shown in FIG. 4, the pressure receiving portions 202, 212 of the first arm 20 and the second arm 21 are formed in an arc shape, and when the movable member is stored, the axis of the pressure receiving portion is The distance to 300 and 310 is shortened. When the lever 30 is rotated to the upright side, the rod 303 of the actuating part and the rod 312 of the rotor press and slide on the concave curved surface formed as described above, and the time required from the beginning to the end of the lever rotation is Force becomes more even. Fourth
In the illustrated example, the connecting member 32 transmits the rotation to the rotor 31 while receiving compressive force when the lever 30 rotates from the illustrated position.

In the example shown in FIG. 5, the operating portion 30 of the lever 30
5 and the rotor 31 are provided with arcuate plates 303 and 312, respectively, which constitute cam surfaces in place of rods. As the lever and rotor rotate from the illustrated position, the arcuate plates 303, 312 contact the pressure receiving parts 202, 212 and the shafts 300, 3.
10, so that the lever 30 can be rotated with a substantially uniform force. As in the first example, the detent mechanism at the arm push-down position is activated by the stopper pin 30 at a position slightly beyond the point corresponding to the reaction force from the pressure receiving part.
The lever 30 and the rotor 31 are configured to abut against the levers 7 and 308, respectively. In addition, as the detent mechanism, a mechanism using a hook or a pin for locking the lever device or arm device to the frame can be adopted as appropriate, and the same applies to other embodiments.

The moving device according to the present invention can be attached to other storage furniture and other heavy items in the same way as the wardrobe example.

Effects of the Invention As is clear from the above explanation, according to the present invention, it is possible to provide an internal heavy object moving device that has the following effects. That is, the frame of the moving device can be stored and installed in the empty space at the lower end of a heavy object, and the frame has two positions: a storage position toward the inside of the frame, and a position where it protrudes downward from the frame. By installing the frame at an appropriate height within the space at the bottom end of the heavy object, the moving member is usually accommodated and the heavy object can be stabilized on any installation surface. By protruding the moving member downward when necessary, heavy items can be easily moved based on the moving member.

The operation for bringing the moving member to both positions is extremely easy as it only involves rotating the lever in the front and rear directions, and the lever action is achieved by the lever action of both the lever and the arm for supporting the moving member. The amount of manual effort required is greatly reduced and operation is simplified.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention; Fig. 1 is a longitudinal cross-sectional side view of the lower part of a wardrobe to which the device of the present invention is attached, Fig. 2 is a cross-sectional view thereof, and Fig. 3 is a state in which moving parts are stored. 1, FIG. 4 is a vertical side view showing the main parts of another example, and FIG. 5 is a vertical side view showing the main parts of still another example. DESCRIPTION OF SYMBOLS 1...Movement device, 2...Arm device, 3...Lever device, 4...Frame, 20...First arm
arm, 21... second arm, 22, 23... moving member, 30... lever, 31... rotor, 32
...Connection member, 200, 210, 300, 310
... shaft, 304 ... operation section, 305 ... operation section.

Claims (1)

[Scope of utility model registration request] A moving device for moving a heavy object, which has a lower end space open toward the installation surface and has a structure that allows human hands to reach the space from above, and is stored in the lower end space. The arm device includes a frame that can be attached and has an open top and bottom surface, and an arm device and a lever device installed in the frame.
The arm device includes two arms whose proximal ends are pivotally supported by one end and the other end inside the frame, respectively, so that they can be rotated in the vertical direction, and whose distal ends extend in opposite directions.
and a moving member attached to the lower surface of the proximal end of each arm, and the lever device is mounted on the inside of the frame substantially above the distal end of one of the arms. a lever that is pivotally supported and rotatable in the direction along the arm; and a lever that is pivotally supported inside the frame substantially above the tip of the other arm and pivotable in the direction along the arm The lever includes a rotor that can rotate while contacting the arm, and a connecting member that connects the lever and the rotor so as to transmit the rotation of the lever, and the lever extends from the pivot support and approximately A long operation part that can be rotated from a horizontal tilted position to the upright side and vice versa, and a short operation part that rotates while abutting the one arm as the operation part rotates. and an actuating part, and the lever is configured such that when the operating part is rotated from the tilted position to the upright side, the actuating part pushes down the one arm based on the transmission by the connecting member. The rotor pushes down the other arm and maintains the depressed state by means of an appropriate detent mechanism, while the lever is configured such that upon release of the detent mechanism, the operating portion moves to the tilted position. When the moving member is returned to the position, the pushing down of the arm by the actuating portion and the rotor is released, and the moving member is moved away from the frame by pushing down the arm based on the rotation of the lever. An internal type heavy object moving device, characterized in that the device projects downward and can be lifted inward of the frame by releasing the depression by returning the lever.