JP6350994B2 - Furniture control device for vertical movement of furniture - Google Patents

Description

  The present invention relates to a jack operating device for vertically moving room partition furniture.

  Recent condominiums have been increasing in number of rooms with a small number of rooms. The reason is that a person living there can freely partition a large room according to his / her preference. For example, when a child grows up, a separate room is needed, or when two families live together and a room where each family lives is needed, a large room can be divided into a desired size. it can. In order to partition this room, if a renovation work is requested by a specialized construction contractor, not only a great construction cost is required, but also the installation of columns and walls becomes a full-scale work. After that, even if it is thought that redesigning or re-partitioning will be performed again, amateurs will not be able to do that easily, and if the partition part is removed, construction marks will remain.

  Therefore, there is a partition that allows an amateur to easily partition a room. Many general partitions have a low height, but some have a high height for residential use. This high-partition is a stretch partition in which a column extends to the ceiling, and a building material such as aluminum, resin, or glass is stuck between them. However, the tension partition has a problem that the sound and light in the adjacent room leak when used as a room partition because the building material stuck between the columns is thin or allows light to pass through. Is not suitable.

  In view of these problems, recently, furniture with a high height has been used as a room divider. Since the partition furniture can be used as storage, it is very convenient for the person using the room, and furthermore, the furniture itself is thick so that the sound and light in the adjacent room are not easily leaked.

  By the way, recent apartments often have a ceiling height of 2400 mm from the floor to the ceiling of each room. If an attempt is made to bring furniture having a height of just 2400 mm into such a condominium room, it becomes difficult to move in the room, so furniture that is slightly lower than the ceiling height is used. Therefore, the furniture for the partition is about 50 to 60 mm lower than the ceiling height. If this height of furniture is used as a partition as it is, not only will the sound and light in the adjacent room leak from the gap between the top and the ceiling of the furniture, but also when an earthquake occurs, the furniture will fall down and close to the furniture. There is a risk of injuring someone who was injured, and if it was a large piece of furniture, it could lead to death.

  Therefore, conventionally, a jack and casters are installed at the bottom of the furniture, and when moving the furniture, the casters are lowered, the furniture is moved with the casters, and after moving, the furniture is raised to the ceiling surface with the jack, and the furniture top plate and ceiling Furniture that eliminates the gaps has been proposed.

  In this furniture, a pedestal is formed at the lower part of the furniture, and a moving frame that fits loosely with the pedestal is installed inside or outside the pedestal. A mounting plate is installed on the opposite part of the moving frame, and a plurality of jacks are mounted between the mounting plate and the bottom plate of the furniture. These jacks are linked to the power transmission part of the jack operating device installed on the bottom plate of the furniture. The jack is activated by rotating the power transmission part with the handle, and the moving frame moves up and down to move the furniture. Move up and down.

  Casters are attached to a plurality of locations on the bottom plate of the furniture. The lower end of the caster protrudes below the wheel, but when the moving frame is lowered with a jack, the moving frame contacts the floor surface as the furniture rises, and the caster moves away from the floor surface. This state means that the furniture is stably placed at a predetermined position. When the moving frame is raised with a jack, the furniture is lowered downward so that the lower part of the caster is exposed. Then, when the side of the furniture is pushed, the furniture can be easily moved to the next predetermined position by the smooth running of the casters.

  As described above, the partition furniture is configured such that the casters are exposed and the moving frame is grounded to the floor surface by the vertical movement of the jack. However, since the jack can produce a large force with a small force, there is no response to the person operating the jack even if the jack is operated after the moving frame is raised and the caster is exposed. Therefore, the jack may be operated to raise the moving frame more than necessary. Then, the screw part which comprises a jack, the jack operation apparatus, the interlocking body which interlocks a plurality of jacks, etc. may be destroyed.

  Thus, in view of the inconvenience due to the operation of the jack more than necessary, a device that cuts off the transmission of force from the jack operating device to the jack so that the moving frame is raised to a predetermined position and stops when the caster is slightly exposed. Has been proposed. (Patent Documents 1 and 2)

Japanese Patent No. 3337457 Japanese Patent No. 4244138

  Since the device of Document 1 employs a stopper mechanism, when the rotating shaft is prevented from rotating, there is a risk that a large impact is applied to the hand operating the operating shaft and the hand is damaged. Moreover, since an impact is applied to the stopper mechanism every time the rotating shaft is prevented from rotating, there is an inconvenience that the stopper mechanism is easily damaged.

  Since the device of Document 2 employs a clutch that can transmit and block rotation from the operation shaft to the drive wheel, it has a feature that is not found in Patent Document 1 that allows smooth operation. However, since the device of Patent Document 2 has a large number of components and the shape of each component is complicated, not only the manufacturing price is expensive, but also a large number of precise components are used in the jack operating device. There was a problem that it was easy to break down. The present invention provides a jack operating device for moving up and down furniture (hereinafter referred to as a jack operating device) that is inexpensive and has few failures because there is no significant impact during use, and because it is configured with simple shaped parts. is there.

Means for Solving the Invention

  When the present inventors try to transmit and block the force to the jack in the jack operation device, the structure of the jack operation device becomes complicated, so that it is not related to the internal structure of the jack operation device, that is, the jack operation. The present invention has been completed by paying attention to the fact that the structure can be simplified and the failure can be reduced if the force can be transmitted to and disconnected from the jack outside the apparatus.

  In the present invention, a pedestal is formed at the lower part of the furniture, and a moving frame loosely fitted with the pedestal is installed inside or outside the pedestal. A jack is attached, and the plurality of jacks are interlocked with the power transmission unit of the jack operation device, and the top and bottom of the furniture that can move the plurality of jacks up and down in the same direction by rotating the power transmission unit. In a moving jack operating device, a push-up bar installed upward on a moving frame of furniture; a lower part is bent by a cylindrical bar-like material, and two engagements are made at positions opposite to each other in the lateral direction. A handle with a pin protruding and attached; the upper part is a handle insertion part, and the handle insertion part has a handle insertion hole through which the lower part of the handle can be easily inserted, and at the upper end of the insertion hole. Is relative Notches for engaging the engaging pins of the handle are formed vertically at two locations, and one side of these two notches is inclined upward in the same rotational direction, and The lower part is a power transmission unit that is interlocked with a plurality of jacks and interlocking bodies, and a handle operating part that has a push-up bar insertion hole that allows easy insertion of a push-up bar at the center. It is a jack operating device for furniture vertical movement characterized by comprising: a holding body that can be freely held and attached to the bottom surface of the furniture.

  Examples of the power transmission unit in the present invention include a bevel gear, a sprocket, and a pulley.

  When a bevel gear is used as the power transmission unit, the interlocking body interlocked with the bevel gear is a rod-shaped body such as a round bar or a hexagonal bar. In order to link the rod-shaped body to the bevel gear of the power transmission unit, the rotational force from the power transmission unit is linked by meshing the bevel gear attached to one end of the rod-shaped body with the bevel gear of the power transmission unit. The jack is attached with a bevel gear on the rotation shaft of the jack, and meshes with the bevel gear and the bevel gear attached to the other end of the interlocking body to transmit the rotational force of the power transmission unit to the jack. The jack adjacent to the power transmission unit directly interlocks with the power transmission unit, but the jack separated from the power transmission unit indirectly receives the rotational force of the power transmission unit in conjunction with the jack adjacent to the power transmission unit.

  When a sprocket is used as a power transmission part, the interlocking body is an endless chain, and the same sprocket as the power transmission part is also attached to the rotating shafts of all jacks attached to the bottom of the furniture. By connecting the sprockets of the power transmission part and the sprockets of all jacks with an endless chain, the rotational force of the power transmission part is transmitted to all the jacks.

  When a pulley is used as the power transmission part, the interlocking body is an endless wire, and the same pulley as the power transmission part is also attached to the rotating shafts of all jacks attached to the bottom surface of the furniture. And the pulley of a power transmission part and the pulley of all the jacks are connected with an endless wire, and the rotational force of a power transmission part is transmitted to all the jacks.

Effect of the invention

  According to the present invention, the jack operating device itself has a reliable structure that has been used without problems, and the parts are robust, so that not only can the assembly be performed very easily, but also it has sufficient strength. In addition, there is an unprecedented excellent effect that the force can be smoothly interrupted and transmitted only by the natural entry and exit of the handle to the jack operating device even during use.

The front view of the furniture which installed the jack apparatus of the present invention in the state where the top plate does not contact the ceiling The front view of the state which the top plate contacted the ceiling in the furniture which installed the jack apparatus of the present invention The lower part exploded perspective view of the furniture which installed the jack apparatus of this invention (1) The furniture which installed the jack apparatus of this invention WHEREIN: The figure explaining the state which raised the moving frame and grounded the caster to the floor. (2) In the furniture which installed the jack apparatus of this invention, lowering a moving frame. The figure explaining the state which separated the caster from the floor Bottom view of furniture with jack device of the present invention (jack mounting plate removed to show jack mounting state) The exploded perspective view of the jack operation device of the present invention Central sectional view of the jack operating device of the present invention (a) Side view of the handle (1) Plan view of the handle insertion portion in the jack operation device of the present invention (2) Front sectional view of the handle insertion portion in the jack operation device of the present invention The figure explaining the state from which the handle removed from the handle insertion part in the jack operation apparatus of this invention.

  The furniture provided with the jack operating device of the present invention will be briefly described. In the embodiment, a bevel gear is used as a power transmission part of the jack operating device, and a hexagonal bar is used as an interlocking body that transmits a rotational force from the power transmission part to the jack.

  A rectangular base wheel 2 having an outer shape slightly smaller than the bottom plate 1 is fixed to the lower surface of the bottom plate 1 of the furniture K. Further, a moving frame 3 that is loosely fitted to the pedestal with a slight gap is installed outside the pedestal.

  Casters 4... Are attached to the bottom plate 1 at four corners. A plurality of jacks 5 a, 5 b, 5 c, 5 d and a jack operating device X are attached to the bottom plate 1. As shown in FIG. 4, the jack operating device X has a hole in the bottom plate 1 of the furniture K, and is attached to the bottom plate through the upper portion of the jack operating device. Therefore, the jack operating device is operated on the bottom plate of the furniture, that is, from the inside of the furniture.

  As shown in FIG. 7, two interlocking bevel gears 6 and 6 are installed in the power transmission portion (bevel gear) 35 of the jack operating device X, and the shafts 7 and 7 of the bevel gears are connected to each other. Interlocking bodies (hexagonal bars) 8 and 8 are attached. As shown in FIG. 3, the jacks 5a and 5b adjacent to the jack operating device X are connected by hexagonal bars 8 and 8 and linked by a bevel gear, the other jack 5c is the jack 5a, and the jack 5d is the jack 5b and the hexagon. They are connected by rods 8 and 8 and are similarly linked by bevel gears. Mounting plates 9 and 9 are installed on the movable frame 3 between the opposing frames, and the lower portions of the jacks 5a, 5b, 5c and 5d are fixed to the mounting plates 9 and 9.

  As shown in FIG. 6, the jack operating device X of the present invention includes a push-up bar 10, a handle 20, a handle operating unit 30, and a holding body 40.

  The push-up bar 10 has a flange 11 formed at the top. The diameter of the push-up bar 10 is such that it can easily pass through a slide hole 47 formed in the center of the lower lid 42 of the holding body 40 described later, and the diameter of the flange 11 is larger than the slide hole. ing. Therefore, when assembling the jack operating device of the present invention, the push-up rod is inserted into the slide hole 47 from above, and the flange portion of the push-up rod is locked by the slide hole.

  As shown in FIG. 9, the push-up bar 10 is placed on the upper part of the bar support 12. The rod support is fixed by a bracket (not shown) attached to the moving frame 3. Accordingly, as the moving frame 3 moves up and down, the bar holder 12 also moves up and down, and the push-up bar 10 placed on the bar holder 12 moves up and down. The height of the bar holder 12 is adjusted by adjusting the fixing position of the bracket.

  As shown in FIG. 4 (2), the handle 20 has a crank shape with a bent lower portion, and as shown in FIGS. The engaging pins 21, 21 are attached in a protruding manner. The attachment positions of the engagement pins 21 and 21 are the positions where the bottoms of the notches 33 formed in the handle insertion portion 31 coincide with the lower portion of the handle insertion portion 32 when the handle insertion hole 32 of the handle operation portion 30 is inserted. The length connecting both ends of the engagement pins 21, 21 is slightly shorter than the outer diameter of the handle insertion portion 31. Therefore, when the engagement pins 21 and 21 are inserted into the notches 33 and 33 and the handle is rotated, the engagement pin does not come out of the handle insertion portion 31, so that the rotation of the handle operation portion 30 is not hindered. .

  As shown in FIG. 8 (2), the handle operating portion 30 has a handle insertion portion 31 at the top, and the handle insertion portion 32 has a handle insertion hole 32 through which the lower portion of the handle 20 is inserted. It is installed. The handle insertion hole is sized so that the flange 11 of the push-up bar 10 can be easily inserted. Further, at the upper end of the handle insertion portion 31, vertical cutouts 33, 33 are formed at two opposite positions. Both sides of the notch are vertical side walls, and as shown in FIG. 8, an upward slope 34 is added to the upper side wall in the same direction of rotation, for example, the counterclockwise side, as shown in FIG.

  A lower part of the handle operating unit 30 is a power transmission unit 35. The power transmission unit shown in the embodiment is a bevel gear installed vertically, and interlocked bevel gears 6 and 6 are engaged with the bevel gear from both sides as shown in FIG. The interlocking bevel gears 6 and 6 have shafts 7 and 7 in the lateral direction, and a hexagonal hole is formed in the shaft in the lateral direction. Hexagonal bars 8 and 8 which are interlocking bodies are fitted into the hexagonal holes.

  The holding body 40 holds the handle operating unit 30 in a rotatable manner and is attached to the bottom plate 1 of the furniture K. As shown in FIG. 6, the holding body of the embodiment includes an upper lid 41 and a lower lid 42. A bearing 43 that can pivotally support the handle insertion portion 31 of the handle operating portion 30 is formed on the upper portion of the upper lid 41, and upper bearings 44 having upper portions that are semicircular are formed on both sides. Further, screw insertion holes 45... Are formed at a plurality of locations on the upper lid 41. On both sides of the lower lid 42, halved lower bearings 46 and 46 are formed at positions corresponding to the upper bearing 44 of the upper lid 41. These upper bearing and lower bearing support the shafts 7 and 7 of the interlocking bevel gears 6 and 6. A sliding hole 47 is formed in the center of the lower lid 42 for sliding the push-up rod 10 in the vertical direction. The sliding hole allows the push-up rod 10 to pass easily, but prevents the push-up rod flange 11 from passing therethrough. A plurality of screw insertion holes 48 are formed in the lower lid 42 at positions away from the screw insertion holes 45 of the upper lid 41, and the upper lid 41 is not shown at a position coincident with the screw insertion holes. Screw holes are drilled. When a sprocket or pulley is used as the power transmission unit, the holding body may be of any shape and structure as long as the handle operating unit can be rotatably held and can be attached to the bottom plate of the furniture. .

  Here, the assembly of the jack operating device of the present invention will be described. First, the push-up rod 10 is inserted into the sliding hole 47 formed in the lower lid 42 of the holding body 40 with the flange 11 up from above, and the flange 11 is locked at the upper part of the sliding hole 47. Then, the handle insertion part 31 of the handle operating part 30 is inserted into the bearing 43 of the upper lid 41 of the holding body 40 from below. Thereafter, the shafts 7 and 7 of the two interlocking bevel gears 6 and 6 are placed on the bearings 46 and 46 of the lower lid 42 of the holding body 40, and then the upper lid 41 is overlaid on the lower lid 42, and the screws of the lower lid 42 are placed. A screw is screwed into the screw hole (not shown) of the upper lid 41 from the insertion hole 48 to fix the upper lid and the lower lid.

  As shown in FIG. 3, the jack operating device assembled in this way is connected to each jack 5 a, 5 b, 5 c, 5 d by the interlocking body 8. Then, in the bottom plate 1 of the furniture K, the positions of the respective jacks and the jack operation device are determined, a hole through which the bearing 43 of the holding body 40 can be inserted is formed at the installation position of the jack operation device, and the bearing 43 is inserted through the hole. A wood screw is passed through the screw insertion hole 45 of the upper lid 41 and fixed to the bottom plate 1 of the furniture K. Then, while attaching the upper part of each jack 5a, 5b, 5c, 5d to the bottom plate of furniture, the lower part of jack 5a, 5b, 5c, 5d is fixed to the attachment board 9 constructed by the moving frame 3. FIG.

  Next, the movement of the partition furniture to which the jack operation device is attached will be described. First, as shown in FIG. 2, the moving frame 3 is lowered downward before the furniture is moved, and the casters 4 are separated from the floor surface Y, that is, the furniture top plate is in contact with the ceiling T of the room. It has become. In order to move the furniture for changing the room, the door of the furniture K is opened, and the lower portion of the handle 20 is inserted into the handle insertion hole 32 of the jack operating device X from the hole formed in the bottom plate 1 of the furniture. . At this time, the engaging pins 21 and 21 attached to the handle 20 enter the bottoms of the notches 33 and 33 of the handle insertion portion 31. Then, when the handle 20 is rotated in the direction in which the moving frame 3 is raised (counterclockwise), the engagement pins 21 and 21 push the vertical side wall of the notch 33 to easily rotate the handle operating unit 30.

  Then, the two interlocking bevel gears 6, 6 meshed with the bevel gear 35, which is the power transmission portion of the handle operating portion 30, are also rotated, and the jacks are connected by the hexagonal bars 8, 8 fixed to the bevel gear. 5a and 5b also rotate in the same manner as the bevel gear 35. Similarly, the jacks 5c and 5d connected to the jacks 5a and 5b by the hexagonal bars 8 and 8 rotate in the same manner as the power transmission unit 35.

  By this rotation, the moving frame 3 to which these jacks 5a, 5b, 5c, 5d are attached is lifted upward so that the casters 4 ... are exposed below the moving frame 3 as shown in FIG. Become. At this time, since the rod holder 12 attached to the moving frame 3 also rises as the moving frame 3 rises, the push-up rod 10 placed on the rod holder 12 rises, and the upper portion of the flange 11 of the push-up rod 10 is the handle insertion portion. The handle 20 that has been inserted into the handle insertion hole 32 of 31 is pushed upward.

  Then, the engaging pins 21 and 21 that have been engaged at the lower end of the notch 33 and have pushed the side wall of the notch 33 enter the slope 34, and the engagement pins 21 and 21 are lifted further along the slope 34. As shown in FIG. 9, the handle is finally removed from the handle insertion hole 32, and the handle insertion portion 30 cannot be rotated any further. Therefore, thereafter, no force is applied to the jack operating device, the coupling body, other jacks, and the like, so that the device and parts are not destroyed.

  When the moving frame 3 is raised to a certain height by the operation of the jack in this way, and the caster 4 is exposed from the moving frame and is grounded to the floor surface Y as shown in FIG. Move to location. After the furniture is moved to a predetermined partition location, the handle is rotated in a direction to lower the moving frame 3. At this time, even if the handle is rotated in the direction of raising the moving frame by mistake, the handle is idle because the engaging pin is located at the notch slope. When the handle is rotated in the direction of lowering the moving frame, the engaging pin is in contact with the vertical side wall without the notch and the handle actuating part easily rotates, and the moving frame is lowered. To ground the floor Y. Thereafter, the handle is further rotated to raise the upper part of the furniture to the ceiling T, thereby completing the partitioning operation with the furniture.

  As described above, the jack operating device according to the present invention allows the handle to be easily detached from the handle operating portion when the moving frame is raised to a predetermined position when raising the moving frame. As a result, it becomes idle, and the force of the handle is not applied to the other components, so that the components are not destroyed and the hand is not shocked.

DESCRIPTION OF SYMBOLS 1 Furniture bottom board 2 Wheel 3 Moving frame 4 Caster 5a, 5b, 5c, 5d Jack 6 Linking bevel gear 7 Linking bevel gear shaft 8 Linking body (hexagonal bar)
9 Mounting plate 10 Push-up rod 11 Flange 12 Rod receiver 20 Handle 21 Engaging pin 30 Handle operating portion 31 Handle insertion portion 32 Handle insertion hole 33 Notch 34 Inclination 35 Power transmission portion (bevel gear)
40 Holding body 47 Sliding hole X Jack operation device K Furniture T Ceiling Y Floor surface

Claims (4)

A pedestal is formed at the lower part of the furniture, a moving frame loosely fitted with the pedestal is installed inside or outside the pedestal, and a plurality of jacks are attached between the moving frame and the lower surface of the furniture. The plurality of jacks are interlocked with the power transmission portion of the jack operation device, and the jack operation device for moving up and down the furniture can be moved up and down in the same direction by rotating the power transmission portion. In
A push-up bar installed upward on the moving frame of furniture;
A handle having a cylindrical bar-like member bent at the lower part and having two engaging pins projectingly attached to the lower part at opposite positions;
The upper part is a handle insertion part, and the handle insertion part is provided with a handle insertion hole through which the lower part of the handle can be easily inserted, and the upper end of the insertion hole has two handles opposite to each other. Notches that engage the mating pins are formed vertically, one side of these two notches is inclined upward in the same direction of rotation, and the lower part is linked to multiple jacks A handle operating portion that is a power transmission portion that is interlocked with the body, and has a push-up rod insertion hole that can be easily inserted through the push-up rod in the center;
A holding body that rotatably holds the handle operating part and can be attached to the bottom of the furniture;
A jack operating device for up and down movement of furniture, characterized by comprising:   The jack operating device for vertical movement of furniture according to claim 1, wherein the power transmission unit is a bevel gear, and the interlocking body interlocking with the bevel gear is a rod-like body having a bevel gear attached to one end.   The furniture operating jack operating device according to claim 1, wherein the power transmission unit is a sprocket, and the interlocking body interlocking with the sprocket is an endless chain.   The jack operating device for vertical movement of furniture according to claim 1, wherein the power transmission unit is a pulley, and the interlocking body interlocking with the pulley is an endless wire.

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