JPH0537139U - Liftable furniture - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide lifting furniture that has a lifting device that can be easily attached and detached in the lifting furniture that can adjust the top plate to a height suitable for work. A furniture including a top plate and a lifting device for adjusting the height of the top plate, wherein the lifting device includes a movable part and a fixed part, and the movable part is the roof. A movable frame having a support portion extending in the depth direction of the plate portion and supporting the top plate portion; and an elevator rack extending vertically downward from the support portion, the fixed portion having a pinion that meshes with the elevator rack, and Fixed with a drive unit having a motor for rotating the pinion forward and backward, a guide unit supporting the drive unit, contacting the installation surface of furniture at the lower end, and guiding the lifting rack in the vertical direction at the upper end And a frame.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to elevating furniture whose top plate can be adjusted to a height suitable for work.

[0002]

[Prior art and its problems]

 For example, when using kitchen furniture equipped with a sink and a cooking table, the user stands in front of the kitchen and performs other tasks, but the kitchen furniture is at a height that does not fit the height of the user. You will be left in an uncomfortable posture for a long time, which may cause fatigue and low back pain. As a measure against this, there has been proposed an elevating type furniture in which the top plate portion can be adjusted to a height suitable for the work so that the user can easily use it (Japanese Patent Application No. 3-19879).

A lifting device provided in the lifting furniture includes an upper frame and a lower frame that extend in a depth direction of a top plate portion and are fixed to a wall surface of a building, and a column that vertically extends between these frames. A rack extending between the frames in parallel with the column, a slider extending along the column, at least upper and lower ends of which are slidably engaged with the column, and a top plate portion fixed to the slider of the top plate portion. A support arm extending in the front direction to support the top plate portion, a pinion fixed to the slider and meshing with the rack, a motor fixed to the slider to rotate the pinion forward and backward, a cylinder, and A gas cylinder device in which one of the plungers is supported by the fixed portion and the other is supported by the slider.

In the furniture, a furniture top plate is fixed to a movable side portion (support arm) of the lifting device, and upper and lower frames which are fixed side portions of the lifting device are fixed to a wall surface and a floor surface of a building, respectively. Was there.

Therefore, when the furniture is installed such that the dimension in the frontal direction matches the space between the inner walls of the building, such as a systematic kitchen furniture, the repair work of the furniture must first be performed. As a result, the wall and floor must be unfixed and the entire furniture must be moved to the storage space forward to a position where work is possible or easy. In particular, in order to replace the lifting device, only the lifting device needs to be removed from the furniture. In this case, the top plate of the furniture and the movable side part (support arm) of the lifting device must be released. It had to be troublesome.

In particular, some systematic kitchen furniture and the like have an L-shaped or U-shaped arrangement so that the kitchen space of a building can be effectively used, and in such furniture, a lifting device is used. It is placed not only on both ends of the furniture but also on the middle part. However, in the case of a conventional lifting device in which the furniture top plate and the lifting device are integrally assembled, it is very difficult to install and repair them.

[0007]

[Means for solving the problem]

 SUMMARY OF THE INVENTION An object of the present invention is to solve the problems described above and to provide lifting furniture in which the lifting device can be easily attached and detached.

The object of the present invention is to provide furniture including a top plate and a lifting device for adjusting the height of the top plate, the lifting device including a movable part and a fixed part. The movable part includes a movable frame that has a support part that extends in the depth direction of the top plate part and that supports the top plate part, and an elevating rack that extends vertically downward from the support part, and the fixed part is the A drive unit having a pinion that meshes with the lifting rack and a motor that rotates the pinion forward and reverse, and a support unit for the driving unit, the lower end of which is in contact with the installation surface of furniture, and the upper end of which is the vertical rack. And a fixed frame having a guide portion for guiding to the up-and-down type furniture.

[0009] In the present specification, the top plate portion includes, for example, a main body portion having a sink, an operating table, a storage case, and the like in kitchen furniture, and a main body portion and a desk having a display shelf in display furniture. Tables, counters, etc. represent decks, and each has a table or shelf as a work surface.

[0010]

【Example】

 Hereinafter, the present invention will be described with reference to the accompanying drawings, taking kitchen furniture as an example. 6 and 7 are a plan view and a front view of the kitchen furniture (1) according to this example. The kitchen furniture (1) is provided with a vertically movable top plate part (2) and a base part (3) separate from the top plate part. The top plate portion (2) is a furniture body integrally provided with cooking facilities such as a sink, a drawer, and the like, in addition to the sink (4), and is supported by the base portion (3). Lifting devices (5) are arranged in the spaces on both sides (indicated by the chain double-dashed line in the figure) of the kitchen furniture (1). The lifting device (5) can be attached to or removed from the space of the kitchen utensil (1) in the state shown in Fig. 2, that is, in the state where the top plate (2) is supported by the base (3). It is possible.

FIG. 1 and FIG. 2 schematically show an elevating device (5) used in the kitchen furniture and provided with a movable part and a fixed part. FIG. 1 is a vertical cross-sectional side view of the kitchen furniture (1) when the lifting device (5) is elevated, and FIG. 2 is a vertical cross-sectional view taken along line I-I of FIG.

The movable part has a movable frame (10) having a support part (11) extending in the depth direction of the furniture top plate part and supporting the top plate part, and a column-shaped extending vertically downward from the support part. And a lifting rack (13). Both ends in the longitudinal direction of the column-shaped lifting rack (13) are fixed to the support portion (11) and the bottom portion (12) of the movable frame by bolts or the like.

The fixed portion includes a drive portion (20) having a pinion (21) that meshes with the lifting rack (13) and a motor with a brake that rotates the pinion forward and reverse, and a fixed frame (25). It has and. The fixed frame has a lower end in contact with an installation surface of furniture, and an upper end provided with a guide portion (23) extending in the front direction of the top plate portion and having a lifting rack (13). The drive part (20) is supported by the guide part (23).

As shown in FIG. 2, the support portion (11) engages with a guide (40) arranged on the bottom surface of the top plate portion (2) of the lifting furniture, and the support plate (11) extends in the depth direction of the top plate portion. It is slidable (perpendicular to the plane of the drawing). Thereby, the lifting device (5) can be housed in the space for the lifting device provided on both sides of the kitchen furniture (1) and integrated with the furniture.

When the lifting device (5) is housed, the movable frame of the lifting device may be pushed down into the space while being lowered. Also, when removing the lifting device (5), the movable frame of the lifting device may be pulled out in a lowered state.

At this time, in order to improve the sliding of the lifting device (5) with the floor surface, it is desirable to provide a sliding member such as a plastic material having lubricity on the bottom surface of the fixed frame (25).

When adjusting the height of the top plate part (2), a switch provided outside the drawing is turned on to drive the motor of the drive part (20). This driving force is transmitted to the pinion (21) via the speed reducer (22). The rotation of the pinion (21) raises or lowers the movable frame (10) via the lifting rack (13).

As described above, the support portion (11) supporting the top plate portion (2) is moved in the vertical direction by the motor with the brake of the lifting device (5), so that the user can work easily. Can be stopped and held. In addition to the motor with a brake, various stoppers such as those using locking claws can be used to maintain a predetermined level.

As for the adjustment limit of the height of the top plate portion (2), the limit switches (14) and (16) are attached to the lifting rack (13) or other movable portion side at positions where upper and lower limits are desired to be set. However, correspondingly, it is desirable to mount the operating locking claw (24) of the limit switch on the guide part (23) or other fixed part side.

In the present embodiment, the lifting rack (13) is provided so as to pass through the guide portion (23), but in this case, it is preferable to improve the slidability of the lifting rack (13). If the sliding member is provided in the penetrating portion of the guide portion (23), the movement of the lifting rack can be made smoother. Further, in order to make the sliding movement between the fixed frame (25) and the movable frame (10) smoother, it is preferable to provide sliding members facing each other between these two frames.

It is preferable to use a pulse motor as a drive motor in order to make the amount of movement by the left and right elevating devices (5) the same and strictly realize the height balance between the left and right tops. Alternatively, by using a photoelectric switch and a detection member having equally-spaced slits arranged between the light emitters and receivers of the photoelectric switch, one is fixed to a movable frame and the other is fixed to a fixed frame, With a counter that counts the number of slits that cross the emitter and receiver of the photoelectric switch, the amount of movement can be detected and the drive motor can be electrically controlled. In this case, it is possible to omit the limit switches for positioning the upper and lower limits of movement.

Next, another embodiment shown in FIGS. 3 to 5 will be described.

FIG. 3 shows a vertical side surface of the lifting device (5 ′) when it is lowered, and FIG. 4 shows a vertical side surface of the lifting device (5 ′) when it is raised. FIG. 5 is a sectional view taken along the line II-II of FIG. 4.

A cylinder device (27) is attached to the lifting device (5 ′). An upper end of a cylinder (28) of the cylinder device is fixed to a movable part, that is, a support part (11) by a pin (30), and a lower end part of a plunger (29) is fixed to a fixed part, that is, below the vertical frame (26). It is fixed by (31). The upper end of the vertical frame is fixed to the guide portion (23) and extends vertically downward from the guide portion. Further, the lower portion of the vertical frame (26) extends through the bottom portion (12) of the movable frame (10), and the sliding portion slides toward the vertical frame (26) side or the bottom portion (12) side. A member is preferably provided.

Similar to the above-described embodiment, when adjusting the height of the top plate portion, a switch provided outside the drawing is inserted and the motor of the drive portion (20) is driven. This driving force is transmitted to the pinion (21) via a speed reducer (not shown). The rotation of the pinion (21) raises or lowers the movable frame (10) via the ascending / descending rack (13). At this time, the cylinder (28) of the cylinder device (27) is extended or contracted according to the movement of the movable frame. The cylinder device (27) supports the top plate part (2) together with the motor while supporting the top plate part (2) while the lifting device (5) supports the top plate part (2).

The support portion (11) for supporting the top plate portion of the furniture is formed so as to be slidable in the top plate depth direction by being engaged with the guide (40) on the top plate portion side. For this reason, when mounting and removing the lifting device from the furniture space, the guides on the bottom of the top plate engage the supporting parts of the lifting device in the lowered state and push it inward, and for electrical wiring. Only the work of connecting the connector is required, and the work can be done very efficiently.

[0027]

[Effect of the device]

 In the lifting furniture according to the present invention, the lifting device includes the support portion that supports the top plate portion, and can be easily mounted or removed in the space of the furniture body. Therefore, it can be assembled without the need for special mounting tools or devices for installation and repair, and the work time and financial burden can be greatly reduced.

[Brief description of drawings]

FIG. 1 is a side view of a vertical cross section of a lifting device at the time of lifting.

FIG. 2 is a vertical cross-sectional view taken along the line II of FIG.

FIG. 3 is a vertical cross-sectional side view when the lifting device is descending.

FIG. 4 is a vertical cross-sectional side view when the lifting device is raised.

5 is a vertical cross-sectional view taken along the line II-II of FIG.

FIG. 6 is a plan view of kitchen furniture according to an embodiment of the present invention.

FIG. 7 is a front view of kitchen furniture according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Kitchen furniture 2 Top plate part 3 Base part 4 Sink 5 Lifting device 10 Movable frame 11 Support part 12 Bottom part 13 Lifting rack 14 Limit switch 16 Limit switch 20 Driving part 21 Pinion 23 Guide part 25 Fixed frame 27 Cylinder device 28 Cylinder 29 Plunger 40 guides

Claims (2)

[Scope of utility model registration request] 1. Furniture comprising a top plate part and a lifting device for adjusting the height of the top plate part, wherein the lifting device comprises a movable part and a fixed part, and the movable part comprises: A movable frame having a support portion that extends in the depth direction of the top plate portion and supports the top plate portion, and an elevator rack that extends vertically downward from the support portion, and the fixed portion is a pinion that meshes with the elevator rack. , And a drive unit having a motor for rotating the pinion forward and reverse, and a guide unit that supports the drive unit, contacts the installation surface of furniture at the lower end, and guides the lifting rack in the vertical direction at the upper end. Lifting-type furniture, which is equipped with a fixed frame. 2. The cylinder device according to claim 1, further comprising a cylinder device in which one of the cylinder and the plunger is fixed to a support portion of the movable frame and the other is fixed to the fixed frame. Lifting type furniture.