JP2020178772A - Top plate elevating/lowering type furniture - Google Patents

Abstract

To provide top plate elevating/lowering type furniture which suppresses the activation of an operation switch by unintentional contact with the operation switch and has improved user-friendliness.SOLUTION: Top plate elevating/lowering type furniture includes: a top plate; a leg body which includes an elevating/lowering mechanism unit for moving the top plate in a vertical direction for supporting the top plate; an operation switch 4 having an operation part 42 for performing an input operation to drive the elevating/lowering mechanism unit; and a cover member 5 which can move relative to the operation switch 4 between a non-use position P4 for covering the operation part 42 from the front and a use position for exposing the operation part 42 to the front. In the non-use position P4, the cover member 5 covers the entire operation switch 4 when being seen from the front of the top plate elevating/lowering type furniture. In addition, the cover member 5 has a locking part 52 for anchoring the cover member 5 in the non-use position.SELECTED DRAWING: Figure 3

Description

The present invention relates to a top plate elevating fixture.

In office spaces such as offices and public facilities, desks are generally provided to provide work areas for workers. In such a desk, the height of the top plate, which is easy to work with, varies greatly depending on the physique, gender, preference, etc. of the worker. However, a general desk having a constant top plate height cannot flexibly cope with the above situation. Therefore, a top plate elevating desk that can change the height of the top plate up and down is provided.

For example, Patent Document 1 includes a top plate, a leg body that has an elevating mechanism unit that moves the top plate in the vertical direction, and an operation unit (operation switch) that drives the elevating mechanism unit. The configuration of the top plate elevating desk provided is disclosed. According to the technique described in Patent Document 1, the top plate can be moved upward and downward by moving the end of the operating lever provided on the operating portion upward and downward with a finger or the like. ing.

JP-A-2017-86431

However, if the structure is such that anyone can access the operation switch, there is a risk that the operation switch will move up and down by unintentionally touching the operation switch. In particular, when a top plate elevating desk is installed in a space where an unspecified number of people enter and exit, such as a school, the elevating mechanism unit is driven by a person other than the user accessing the operation switch, which is desired by the user. May be changed from the setting of.

Therefore, an object of the present invention is to provide a top plate elevating fixture that suppresses the operation of the operation switch due to unintended contact with the operation switch and improves the usability of the user.

As a means for solving the above problems, the top plate elevating type fixture according to the aspect of the present invention includes a top plate, a leg body that has an elevating mechanism unit for moving the top plate in the vertical direction, and supports the top plate. With respect to the operation switch between an operation switch having an operation unit that performs an input operation for driving the elevating mechanism unit, an unused position that covers the operation unit from the front, and a use position that exposes the operation unit to the front. A cover member that can be moved relative to each other.

According to this configuration, the top plate moves in the vertical direction by operating the operation unit. Since the cover member is movable relative to the operation switch, the operation unit can be exposed forward by arranging the cover member at the use position when the operation unit is used. As a result, the operation unit can be easily accessed.
On the other hand, by arranging the cover member in the unused position when the operation unit is not used, the operation unit can be closed from the front. As a result, it is possible to prevent the operation switch from operating due to unintended contact with the operation switch. Further, by closing the operation unit with the cover member, it is possible to suppress access to the operation switch by a person other than the user. As a result, the height of the top plate can be maintained at the optimum height for the user. Therefore, the usability of the user can be improved.
Therefore, it is possible to provide a top plate elevating fixture that suppresses the operation of the operation switch due to unintended contact with the operation switch and improves the usability of the user.

In the above aspect, one of the operation switch and the cover member may have a locking portion that moored the relative position between the operation portion and the cover member to the unused position.

According to this configuration, since one of the operation switch and the cover member has a locking portion, the relative position between the operating portion and the cover member can be moored to an unused position by locking with the locking portion. In addition, access to the operation switch by a person other than the user who owns the key of the locking unit can be restricted. Therefore, it is possible to suppress the operation of the operation switch due to unintended contact with the operation switch and improve the usability of the user.

In the above aspect, the operation switch and the cover member may be provided on the lower surface of the top plate.

According to this configuration, it is not necessary to arrange the operation switch and the cover member on the upper surface of the top plate which is the work surface, so that the work surface can be widely secured. Therefore, the work efficiency of the user can be improved. Further, since the operation switch and the cover member are provided on the lower surface of the top plate, the user's lower limbs come into contact with each other as compared with the case where the operation switch and the cover member are provided on the side or lower part of the fixture, for example. Unintended operation of the operation switch can be suppressed. Therefore, the usability of the top plate elevating fixture can be improved.

In the above aspect, in the unused position, the cover member may be configured to cover the entire operation switch when viewed from the front of the top plate elevating fixture.

According to this configuration, by covering the entire operation switch with the cover member, unintended contact with the operation switch can be further suppressed. Moreover, since the entire operation switch is covered when viewed from the front, it is difficult for a person other than the user to find the operation switch. Therefore, access to the operation switch by a person other than the user can be further suppressed, and usability for the user can be improved.

In the above aspect, the cover member may be configured to be movable between the used position and the non-used position.

According to this configuration, since the cover member is movable, the operation switch can be fixed to the top plate elevating fixture. As a result, the wiring of the operation switch can be fixed to the top plate elevating fixture. Therefore, the configuration of the cover member and the operation switch can be simplified as compared with the case where the operation switch is configured to be movable.

In the above aspect, the cover member may be configured to be slidable in the left-right direction between the used position and the non-used position.

According to this configuration, the cover member can be arranged at the used position and the unused position by sliding the cover member in the left-right direction. Since the cover member moves in the left-right direction in this way, a wide space in the front-rear direction can be secured. Therefore, the dimensions of the operation switch and the cover member in the front-rear direction can be reduced. Further, the operation switch can be arranged on the front side of the lower surface of the top plate. Therefore, the operability of the operation switch can be improved.

In the above aspect, the cover member is located in front of the operation switch, and is left and right with respect to the operation switch among the closing portion that covers the operating portion from the front in the unused position and the upper end portion of the closing portion. It has a mounting portion extending rearward along the lower surface of the top plate from a portion located on one side in the direction, and the cover member is said to have an elongated hole extending in the left-right direction formed in the mounting portion. It may be configured so as to be slidably attached to the top plate.

According to this configuration, since the cover member has the closing portion, the closing portion covers the front of the operating portion at the unused position, so that access to the operating portion can be suppressed. Since the cover member has a mounting portion and the cover member is mounted on the top plate through an elongated hole formed in the mounting portion, the cover member can be slid and moved in the left-right direction with a simple configuration, and the position and position of use cannot be determined. Can be placed at the position of use. Further, since the elongated holes are provided at positions shifted in the left-right direction with respect to the operation switch, the dimensions of the operation switch and the cover member in the front-rear direction can be reduced. Therefore, it is possible to obtain a top plate elevating type fixture with improved usability for the user.

According to the aspect of the present invention, it is possible to provide a top plate elevating fixture that suppresses the operation of the operation switch due to unintended contact with the operation switch and improves the usability of the user.

It is an external perspective view of the top plate elevating type fixture in 1st Embodiment of this invention. It is sectional drawing of the operation switch in 1st Embodiment of this invention. It is a top view at the non-use position of the operation switch and the cover member in the 1st Embodiment of this invention. It is a front view in the unused position of the said operation switch and a cover member. It is a side view at a position where the operation switch and a cover member are not used. It is a top view at the use position of the said operation switch and a cover member. It is a front view at the use position of the said operation switch and a cover member. It is a front view of the lock body in 1st Embodiment of this invention. It is a side view of the lock body in 1st Embodiment of this invention. It is an exploded view of the locking part in 1st Embodiment of this invention. It is a top view of the said locking part. It is a top view at the non-use position of the operation switch and the cover member in the 2nd Embodiment of this invention. It is a top view at the use position of the said operation switch and a cover member. It is a side view of the operation switch and the cover member in 3rd Embodiment of this invention. It is a side view of the operation switch and the cover member in 4th Embodiment of this invention. It is a top view of the operation switch and the cover member in 5th Embodiment of this invention.

(First Embodiment)
(Top plate elevating fixture)
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an external perspective view of the top plate elevating fixture 1 according to the first embodiment of the present invention.
The top plate elevating fixture 1 is arranged in an office space such as an office or a public facility, and is a desk or the like for the user to perform office work. The top plate elevating fixture 1 includes a top plate 2, a leg body 3 arranged on the floor surface F, an operation switch 4, and a cover member 5 (see FIG. 3).
In the following description, the direction orthogonal to the floor surface F is the vertical direction (arrow UP is upward), and the two directions orthogonal to the vertical direction are the front-rear direction (arrow FR is forward) and the horizontal direction (arrow LH left), respectively. explain. The left-right direction coincides with the left-right direction seen by the user when the user faces the top plate elevating fixture 1.

(Top board)
The top plate 2 is formed in a rectangular shape having long sides in the horizontal direction when viewed from the vertical direction. The top surface 2a of the top plate 2 is a working surface. Of the top plate 2, the front side 2f located in front is the side mainly used by the worker (user).

(Legs)
The leg body 3 stands up from the floor surface F upward. The leg body 3 supports the top plate 2. A pair of legs 3 are provided so as to be separated from each other in the left-right direction. Since each of the pair of leg bodies 3 has the same configuration, one leg body 3 will be described as an example in the following description. The leg body 3 includes a lower support body 31, an upper support body 32, and an elevating mechanism unit 33. The number of legs 3 is not limited to a pair, and may be a single number or three or more.

The lower support 31 is arranged on the floor surface F. The lower support 31 includes a grounding frame 34 extending in the front-rear direction, and adjusters 35 provided on the lower surfaces of the front end portion and the rear end portion of the grounding frame 34 and in contact with the floor surface F, respectively. The grounding frame 34 is formed by, for example, bending a steel plate to form a square cylinder. Each adjuster 35 has a known configuration. By moving the adjuster 35 in the vertical direction with respect to the grounding frame 34, it is possible to adjust the non-landing of the top plate elevating fixture 1.

The upper support 32 is arranged above the lower support 31. The upper end of the upper support 32 supports the top plate 2. The upper support 32 is configured in the same manner as the ground frame 34. The upper support 32 is fixed to the lower surface 2b of the top plate 2 by a screw member or the like (not shown).

The elevating mechanism unit 33 is stretchably connected between the lower support 31 and the upper support 32. The elevating mechanism unit 33 is an electric type having a conventionally known configuration. The elevating mechanism unit 33 includes a plurality of square cylinders 33a, 33b, 33c having different outer diameter dimensions, and a drive mechanism 37 housed inside the square cylinders 33a, 33b, 33c. The square cylinders 33a, 33b, and 33c are fitted so as to be relatively movable in the vertical direction. By driving the drive mechanism 37, the elevating mechanism unit 33 connects the lower support 31 and the upper support 32 in an expandable manner, and moves the top plate 2 in the vertical direction.

(Operation switch)
The operation switch 4 is provided on the lower surface 2b of the top plate 2. The operation switch 4 is provided at a corner where the front side 2f and the right side 2r of the top plate 2 intersect. The operation switch 4 is for driving the elevating mechanism unit 33.
FIG. 2 is a cross-sectional view of the operation switch 4 according to the first embodiment of the present invention.
The operation switch 4 includes a housing 41, an operation unit 42, an operation board 43, and an elevating control unit 44 (see FIG. 1).

The housing 41 is attached to the lower surface 2b of the top plate 2. The housing 41 is formed in a box shape with front ends opened in the front and on both the upper and lower sides. The upper wall of the housing 41 is fixed to the lower surface 2b of the top plate 2. The housing 41 is provided with a support groove 12.
The support groove 12 is provided on each of the left and right side walls of the housing 41 facing the inside of the housing 41. The support groove 12 is recessed from the left and right side walls toward the outside of the housing 41 in the left-right direction.

The operation unit 42 is housed inside the housing 41. The operation unit 42 is a member for performing an input operation for driving the elevating mechanism unit 33. The operation unit 42 is configured to be movable inside the housing 41. The operation unit 42 includes a shaft unit 45, a first connection unit 46, an operation input unit 47, and a second connection unit 48.

The shaft portion 45 is formed in a columnar shape having an axis C along the left-right direction. The left and right ends of the shaft portion 45 are supported by the support grooves 12 of the housing 41. The shaft portion 45 is rotatable about the axis C as the center of rotation in the support groove 12.
The first connecting portion 46 extends downward from the shaft portion 45. The first connecting portion 46 is integrally formed with the shaft portion 45.

The operation input unit 47 is connected to the lower end of the first connecting unit 46. The operation input unit 47 is integrally formed with the first connecting unit 46. The operation input unit 47 is formed in a plate shape. The operation input unit 47 extends in the front-rear direction from the lower end portion of the first connecting portion 46 along the lower surface 2b of the top plate 2. In the front-rear direction, the front end portion 47a of the operation input portion 47 extends to substantially the same position as the front end portion of the housing 41. The operation input unit 47 is configured such that the front end portion 47a can be rotationally moved upward and downward from the neutral position P1 by rotating the shaft portion 45. That is, in the operation input unit 47, for example, when a load is input by the user's finger M, the neutral position P1, the upper position P2 in which the front end portion 47a is located above the neutral position P1, and the front end portion 47a It is rotatable between the lower position P3 located below the neutral position P1 and the lower position P3. The operation input unit 47 is set to be located at the neutral position P1 in a no-load state in which no load is input.

The second connecting portion 48 extends rearward from the shaft portion 45. The second connecting portion 48 is integrally formed with the shaft portion 45. A recess 48a is formed at the rear end of the second connecting portion 48. The recess 48a is recessed forward from the rear end of the second connecting portion 48.

The operation board 43 is housed inside the housing 41. The operation board 43 is arranged behind the operation unit 42. The operation board 43 includes a board 16 and a toggle switch 17.
The substrate 16 is formed in a plate shape. The substrate 16 is fixed to the housing 41.
The toggle switch 17 is attached to the substrate 16. The toggle switch 17 is arranged so that the lever 18 faces forward. The lever 18 is engaged with the recess 48a of the second connecting portion 48. As the operation input unit 47 moves upward and downward, the lever 18 moves up and down with respect to the toggle switch 17. Specifically, when the operation input unit 47 moves to the upper position P2, the tip portion of the lever 18 is located downward. When the operation input unit 47 moves to the lower position P3, the tip end portion of the lever 18 is located upward. Wiring (not shown) is connected to the toggle switch 17, and the lever 18 moves up and down to transmit a signal from the toggle switch 17 to the elevating control unit 44 (see FIG. 1).

Returning to FIG. 1, the elevating control unit 44 is built in the top plate 2. The elevating control unit 44 is electrically connected to the toggle switch 17 by wiring or the like (not shown). The elevating control unit 44 transmits a signal for operating the elevating mechanism unit 33 to the drive mechanism 37 of the leg body 3 based on the signal received from the toggle switch 17.

(Cover member)
FIG. 3 is a top view of the operation switch 4 and the cover member 5 in the first embodiment of the present invention at the unused position P4. FIG. 4 is a front view of the operation switch 4 and the cover member 5 at the unused position P4. FIG. 5 is a side view of the operation switch 4 and the cover member 5 at the unused position P4. FIG. 6 is a top view of the operation switch 4 and the cover member 5 at the usage position P5. FIG. 7 is a front view of the operation switch 4 and the cover member 5 at the usage position P5.
As shown in FIGS. 3 to 5, the cover member 5 is provided on the lower surface of the top plate 2. The cover member 5 has an unused position P4 (see FIGS. 3 and 4) in which the cover member 5 covers the operation switch 4 from at least the front, and a used position P5 (FIG. 3) in which the cover member 5 is located to the left of the operation switch 4. 6 and FIG. 7) and the operation switch 4 are attached so as to be relatively movable in the left-right direction. As shown in FIG. 4, at the unused position P4, the cover member 5 covers almost the entire operation switch 4 when viewed from the front. As shown in FIG. 7, at the use position P5, the cover member 5 exposes the operation portion 42 to the front.

As shown in FIGS. 3 to 5, the cover member 5 includes a cover main body 51 and a locking portion 52.

(Cover body)
The cover body 51 is, for example, a sheet metal part. The cover body 51 is formed in a box shape having an opening in a part by bending the sheet metal. Specifically, the cover main body 51 has a closing portion 51a, a mounting portion 51b, a rear wall 51c, a side wall 51d, a bottom wall 51e, and an upright portion 51f.

As shown in FIG. 4, the closing portion 51a is arranged in front of the operation switch 4. The closing portion 51a is formed in a flat plate shape with the front-rear direction as the thickness direction. The closing portion 51a is formed in a rectangular shape having long sides in the left-right direction. At the unused position P4, the closing portion 51a covers at least the operating portion 42 of the operating switch 4 from the front in the right half portion. In the present embodiment, the closing portion 51a covers the entire operation switch 4 except for the left end portion of the housing 41. However, the entire operation switch 4 may be covered. A through hole 53 is formed in the middle portion of the closing portion 51a in the left-right direction. The through hole 53 penetrates the closing portion 51a in the front-rear direction. The through hole 53 is formed in a circular shape, for example.

As shown in FIG. 3, the mounting portion 51b extends rearward from the upper end portion of the closing portion 51a along the lower surface 2b of the top plate 2. The mounting portion 51b has an upper wall 61, a rear extension portion 62, and an elongated hole 63.
The upper wall 61 is connected to a portion of the upper end portion of the closing portion 51a located on the left side including the central portion in the left-right direction. When viewed from the vertical direction, the upper wall 61 is provided on the left side of the left end of the operation switch 4 at the unused position P4. The upper wall 61 is in contact with or close to the lower surface 2b of the top plate 2.
The rear extension portion 62 is connected to the right end portion of the upper wall 61. The rear extension portion 62 extends from the rear right end portion of the upper wall 61 toward the right. When viewed from the vertical direction, the rear extension portion 62 is provided behind the rear end of the operation switch 4 at the unused position P4. The rear extension portion 62 is formed on the same plane as the upper wall 61.

The elongated hole 63 penetrates the mounting portion 51b in the vertical direction. The elongated hole 63 has a longitudinal direction along the left-right direction. The elongated hole 63 has a first elongated hole 64 and a second elongated hole 65. The first elongated hole 64 is formed in the upper wall 61. Specifically, the first elongated hole 64 is formed in the front portion of the upper wall 61. The second elongated hole 65 is formed in the rear extension portion 62. The length of the second elongated hole 65 in the longitudinal direction is formed to be equal to the length of the first elongated hole 64 in the longitudinal direction.
By inserting a fastener such as a screw 11 into the elongated hole 63, the cover member is slidably attached to the lower surface 2b of the top plate 2 via the elongated hole 63.
The number and location of the elongated holes 63 are not limited to the above-described embodiment.

Here, at the unused position P4, the screw 11 is located at the end (left end) of the elongated hole 63 in the longitudinal direction on the side separated from the operation switch 4. On the other hand, as shown in FIG. 6, at the use position P5, the screw 11 is located at the end (right end) of the elongated hole 63 in the longitudinal direction on the side close to the operation switch 4.

As shown in FIG. 5, the rear wall 51c extends downward from the rear end of the mounting portion 51b. The vertical height dimension of the rear wall 51c is smaller than the vertical height dimension of the closing portion 51a.

The side wall 51d extends downward from the left end of the mounting portion 51b. In the vertical direction, the position of the lower end portion of the side wall 51d is formed so as to be the same height as the lower end portion of the closing portion 51a.
The rear wall 51c and the side wall 51d of the cover body 51 may not be provided.

The bottom wall 51e extends rearward from the lower end of the closing portion 51a. The length dimension of the bottom wall 51e in the front-rear direction is smaller than the length dimension of the mounting portion 51b in the front-rear direction. Specifically, the rear end portion of the bottom wall 51e is located at the same level as the first elongated hole 64 or in front of the first elongated hole 64 in the front-rear direction. As a result, when fastening a screw or the like to the first elongated hole 64, the tool can be arranged substantially perpendicular to the first elongated hole 64. Therefore, it is easy to perform the fastening work. The bottom wall 51e covers substantially the first half of the operation switch 4 from below.

The upright portion 51f extends upward from the rear end portion of the bottom wall 51e. The vertical height dimension of the upright portion 51f is smaller than the vertical height dimension of the closed portion 51a. The upper end of the upright portion 51f is located below the lower end of the rear wall 51c.

As described above, in the present embodiment, the bottom wall 51e covers the front half of the operation switch 4 from below. As a result, it is difficult to operate the operation unit 42 by, for example, turning a finger from below the operation switch 4. Further, the standing portion 51f extends in a direction close to the operation switch 4. As a result, the gap between the cover body 51 and the operation switch 4 can be reduced. Therefore, it is possible to suppress access to the operation switch 4 by a person other than the user while the cover member 5 is in the unused position P4.

(Locking part)
As shown in FIGS. 3 and 4, the locking portion 52 is attached to the cover main body 51. Specifically, the locking portion 52 is fixed to the central portion in the left-right direction of the surface facing the rear of the closing portion 51a. The locking portion 52 is a member for mooring the cover member 5 at the unused position P4.
The locking portion 52 includes a lock main body 57, a lock supporting portion 58, and a pressing member 59 (see FIG. 10).

FIG. 8 is a front view of the lock body 57 according to the first embodiment of the present invention. FIG. 9 is a side view of the lock body 57 according to the first embodiment of the present invention.
The lock body 57 is a lock that can be locked and unlocked by inserting a key (not shown) and rotating the lock body 57. The lock body 57 has a key insertion portion 67 and a protruding piece 68.
The key insertion portion 67 is formed in a columnar shape along the axial direction in the front-rear direction. As shown in FIG. 8, the key insertion portion 67 is provided with a keyhole 67a when viewed from the front. A key (not shown) can be inserted into the keyhole 67a. As shown in FIG. 9, a fixing groove 69 extending in the left-right direction is formed on the outer peripheral portion of the key insertion portion 67. The fixing groove 69 is formed in the upper portion and the lower portion of the key insertion portion 67, respectively.

The protruding piece 68 is attached to the rear end portion of the key insertion portion 67. The projecting piece 68 is configured to be movable up and down. Specifically, by rotating the key counterclockwise (see arrow L) when viewed from the front with the key inserted in the keyhole 67a, the protruding piece 68 is in an unlocking position where the protruding piece 68 is located below. The protruding piece 68 moves from P6 to the locking position P7 located above the unlocking position P6. Further, by rotating the key clockwise (in the direction opposite to the arrow L) when viewed from the front while the protruding piece 68 is located at the locking position P7, the protruding piece 68 is moved from the locking position P7 to the unlocking position. Move to P6.

As shown in FIGS. 4 and 5, in the state where the locking portion 52 is attached to the cover member 5, the protruding piece 68 has the protruding piece 68 movable above and below the lower surface 2b of the top plate 2. There is. Specifically, at the unlocking position P6, the protruding piece 68 is located below the lower surface 2b of the top plate 2. At the locking position P7, the protruding piece 68 is located above the lower surface 2b of the top plate 2. The lower surface 2b of the top plate 2 is provided with an engaging recess 20 capable of accommodating the protruding piece 68 at the locking position P7. At the locking position P7, the protrusion 68 engages with the engaging recess 20 to limit the movement of the cover member 5. In other words, the cover member 5 is locked to the unused position P4 by moving the projecting piece 68 to the locking position P7.

FIG. 10 is an exploded view of the locking portion 52 according to the first embodiment of the present invention. FIG. 11 is a top view of the locking portion 52.
As shown in FIG. 10, the lock support portion 58 is, for example, a sheet metal part. The lock support portion 58 includes a joint portion 71, a first connection portion 72, an intermediate stage portion 73, a second connection portion 74, an upper stage portion 75, an end side wall 76, an insertion hole 77, and a lock mounting hole. 78 and.

The joint portion 71 is formed in a rectangular plate shape with the front-rear direction as the thickness direction. A pair of joints 71 are provided so as to be separated from each other in the left-right direction. The joint portion 71 is fixed to a portion of the surface of the cover body 51 facing the rear of the closed portion 51a, which is located on both the left and right sides with the through hole 53 in between (see also FIG. 3).
The first connection portion 72 extends rearward from the inner end portion in the left-right direction of each joint portion 71.
The intermediate stage portion 73 extends inward in the left-right direction from the rear end portion of each first connecting portion 72. The intermediate step portion 73 is formed in a rectangular plate shape parallel to the joint portion 71.
As shown in FIG. 3, at the unused position P4, the right half of the lock support portion 58 (the portion from the joint portion 71 on the right side to the intermediate stage portion 73) is the left end portion of the operation switch 4 when viewed from the front-rear direction. Overlaps on. That is, the front end portion of the operation switch 4 and the rear surface of the intermediate stage portion 73 are close to each other in the front-rear direction.

The second connecting portion 74 extends rearward from the inner end portion in the left-right direction of each intermediate step portion 73. The second connecting portion 74 is connected to the central portion of the intermediate stage portion 73 in the vertical direction. The vertical height dimension of the second connecting portion 74 is smaller than the vertical height dimension of the intermediate step portion 73.
The upper portion 75 connects the rear ends of the pair of left and right second connecting portions 74 to each other. The upper portion 75 is formed in a rectangular plate shape parallel to the intermediate portion 73. The upper portion 75 is arranged at a position where it overlaps with the through hole 53 when viewed from the front-rear direction.
The end side wall 76 extends forward from the upper and lower ends of the intermediate step 73.

The insertion hole 77 is provided on the right side of the lock support portion 58. The insertion hole 77 is formed over three sides of the joint portion 71, the first connection portion 72, and the intermediate step portion 73. The insertion holes 77 are provided in the vertical intermediate portion of the joint portion 71, the first connection portion 72, and the intermediate step portion 73.
The lock mounting hole 78 is provided in the upper portion 75. The lock mounting hole 78 penetrates in the front-rear direction at a position of the upper portion 75 that overlaps with the through hole 53 when viewed from the front-rear direction. The outer shape of the lock mounting hole 78 when viewed from the front-rear direction is larger than that of the through hole 53. The lock mounting hole 78 is formed in a circular shape when viewed from the front-rear direction. The lock body 57 is inserted into the lock mounting hole 78 from the rear (see also FIG. 11).

As shown in FIG. 10, the pressing member 59 is formed in a Y shape when viewed from the front-rear direction by a base portion 81 and an arm portion 82 extending bifurcated from the base portion 81. The pressing member 59 is a member for fixing the lock body 57 to the lock supporting portion 58. The pressing member 59 is made of a metal material such as spring steel.
The base 81 is formed in a flat plate shape with the front-rear direction as the thickness direction. A grip portion 83 is provided at the right end portion of the base portion 81. The grip portion 83 extends forward from the right end of the base 81.
The arm 82 is connected to the left end of the base 81. A pair of arm portions 82 are provided apart from each other in the vertical direction at the left end of the base portion 81. Each arm 82 extends to the left from the left end of the base 81. As shown in FIG. 11, the arm portion 82 is curved so as to be convex forward when viewed from the vertical direction. A pressing portion 84 is provided at the left end portion of the arm portion 82.

A method of fixing the lock body 57 to the lock support portion 58 by using the pressing member 59 formed in this way will be described in detail.
As shown in FIG. 11, first, the key insertion portion 67 is inserted into the lock mounting hole 78 of the lock support portion 58. At this time, the outer peripheral portion of the front surface of the key insertion portion 67 abuts on the closing portion 51a from the rear. On the other hand, the central portion of the front surface of the key insertion portion 67 is exposed forward by the through hole 53 provided in the closing portion 51a. Next, as shown in FIG. 10, the pressing member 59 is inserted into the insertion hole 77 from the arm portion 82 side. In a state where the pressing member 59 is inserted into the insertion hole 77, the arm portion 82 is engaged with the fixing groove 69 of the lock body 57 and is in contact with the inner surface of the fixing groove 69 as shown in FIG. Further, the base portion 81 and the pressing portion 84 are in contact with the intermediate step portion 73 of the lock support portion 58, respectively. As a result, the lock body 57 is prevented from coming off from the lock mounting hole 78, and the lock body 57 is fixed to the lock support portion 58. Further, the pressing member 59 urges the lock body 57 forward between the inner surface of the fixing groove 69 and the intermediate step portion 73. Therefore, the lock body 57 is pressed forward by the pressing member 59, and the rattling of the lock body 57 is suppressed.

Returning to FIG. 3, the lock body 57 thus formed is arranged to the left of the operation switch 4 at the unused position P4. Specifically, when viewed from the left-right direction, the rear portion of the lock body 57 (the portion protruding rearward from the lock support portion 58) is arranged so as to overlap the operation switch 4.

Next, a method of using the top plate elevating fixture 1 will be described.
In the state before use, the cover member 5 is arranged at the unused position P4 that covers the front of the operation switch 4, and is locked to the unused position P4 by the locking portion 52. When raising and lowering the top plate 2, first, as shown in FIG. 4, the key is inserted into the keyhole 67a of the locking portion 52 exposed on the front surface and rotated counterclockwise to unlock the locking portion 52. ..
Next, the user slides the cover member 5 to the left and arranges the cover member 5 at the use position P5. As a result, the operation unit 42 of the operation switch 4 is exposed forward (state in FIG. 7).

Next, as shown in FIG. 2, a finger M is placed on the operation input unit 47 in the operation unit 42, and the operation input unit 47 is rotated to the upper position P2. When the operation input unit 47 is arranged at the upper position P2, the top plate 2 starts the ascending operation via the toggle switch 17, the elevating control unit 44, and the drive mechanism 37 (all of which see FIG. 1). While the operation input unit 47 is located at the upper position P2, the top plate 2 continues to rise. When the top plate 2 reaches a desired height, the user releases the finger M from the operation input unit 47 and stops the ascending operation.
When it is desired to lower the top plate 2, the operation input unit 47 is rotated to the lower position P3, and when the top plate 2 reaches a desired height, the finger M is released from the operation input unit 47 to stop the lowering operation. To do.

After the height adjustment of the top plate 2 is completed, the user slides the cover member 5 to the right and arranges the cover member 5 at the unused position P4. As a result, the operation unit 42 of the operation switch 4 is covered with the cover member 5. Therefore, it is possible to prevent the top plate 2 from moving up and down due to unintended contact by the user.

Further, when the user leaves the top plate elevating fixture 1, the cover member 5 is locked to the unused position P4 by the locking portion 52. Specifically, in a state where the cover member 5 is arranged at the unused position P4, the user inserts the key into the keyhole 67a of the locking portion 52 and rotates it clockwise to lock the locking portion 52. Lock it. As a result, it is possible to prevent the operation switch 4 from being operated by a person other than the user.

(Action, effect)
Next, the operation and effect of the above-mentioned top plate elevating fixture 1 will be described.
According to the top plate elevating fixture 1 according to the aspect of the present invention, the top plate 2 moves in the vertical direction by operating the operation unit 42. Since the cover member 5 is movable relative to the operation switch 4, the operation unit 42 can be exposed forward by arranging the cover member 5 at the use position P5 when the operation unit 42 is used. As a result, the operation unit 42 can be easily accessed.
On the other hand, by arranging the cover member 5 at the unused position P4 when the operation unit 42 is not used, the operation unit 42 can be closed from the front. As a result, it is possible to prevent the operation switch 4 from operating due to unintended contact with the operation switch 4. Further, by closing the operation unit 42 by the cover member 5, it is possible to suppress access to the operation switch by a person other than the user. As a result, the height of the top plate 2 can be maintained at an optimum height for the user. Therefore, the usability of the user can be improved.
Therefore, it is possible to provide the top plate elevating fixture 1 that suppresses the operation of the operation switch 4 due to unintended contact with the operation switch 4 and improves the usability of the user.

Since at least one of the operation switch 4 and the cover member 5 has a locking portion 52, the relative position between the operating portion 42 and the cover member 5 can be moored at the unused position P4 by locking with the locking portion 52. In addition, access to the operation switch 4 by a person other than the user who owns the key of the locking unit 52 can be restricted. Therefore, it is possible to suppress the operation of the operation switch 4 due to unintended contact with the operation switch 4 and improve the usability of the user.

The lock body 57 is arranged to the left of the operation switch 4 at the unused position P4. As a result, interference between the lock body 57 and the operation switch 4 can be suppressed even when the lock body 57 and the operation switch 4 are arranged at the same positions in the front-rear direction (positions where they overlap when viewed from the left-right direction). Therefore, the lock body 57 and the operation unit 42 can be arranged in front of the lower surface 2b of the top plate 2 to improve the usability of the user. Further, the size of the cover member 5 in the front-rear direction can be reduced.

Since the locking portion 52 is provided at the central portion of the cover main body 51 in the left-right direction, the appearance of the cover member seen from the front can be symmetrical. Thereby, the appearance of the appearance of the cover member seen from the front can be improved.

The operation switch 4 and the cover member 5 are provided on the lower surface of the top plate 2. According to this configuration, since it is not necessary to arrange the operation switch 4 and the cover member 5 on the upper surface 2a of the top plate 2 which is the work surface, a wide work surface can be secured. Therefore, the work efficiency of the user can be improved. Further, since the operation switch 4 and the cover member 5 are provided on the lower surface 2b of the top plate 2, the user can compare with the case where the operation switch 4 and the cover member 5 are provided on, for example, the side portion or the lower portion of the fixture. It is possible to suppress the unintended operation of the operation switch 4 due to the contact of the lower limbs. Therefore, the usability of the top plate elevating fixture 1 can be improved.

By covering the entire operation switch 4 with the cover member 5, unintended contact with the operation switch 4 can be further suppressed. Further, since the entire operation switch 4 is covered when viewed from the front, it is difficult for a person other than the user to find the operation switch 4. Therefore, access to the operation switch 4 by a person other than the user can be further suppressed, and usability for the user can be improved.

Since the cover member 5 is configured to be movable, the operation switch 4 can be fixed to the top plate elevating fixture 1. As a result, the wiring of the operation switch 4 can be fixed to the top plate elevating fixture 1. Therefore, the configurations of the cover member 5 and the operation switch 4 can be simplified as compared with the case where the operation switch 4 is configured to be movable.

By sliding the cover member 5 in the left-right direction, the cover member 5 can be arranged at the used position P5 and the unused position P4. Since the cover member 5 moves in the left-right direction in this way, a wide space in the front-rear direction can be secured. Therefore, the dimensions of the operation switch 4 and the cover member 5 in the front-rear direction can be reduced. Further, the operation switch 4 can be arranged on the front side of the lower surface 2b of the top plate 2. Therefore, the operability of the operation switch 4 can be improved.

Since the cover member 5 has the closing portion 51a, access to the operating portion 42 can be suppressed by covering the front of the operating portion 42 with the closing portion 51a at the unused position P4. Since the cover member 5 has a mounting portion 51b and the cover member 5 is mounted on the top plate 2 via an elongated hole 63 formed in the mounting portion 51b, the cover member 5 can be slid in the left-right direction with a simple configuration. It can be moved and placed at the used position P5 and the unused position P4. Further, since the elongated hole 63 is provided at a position shifted in the left-right direction with respect to the operation switch 4, the dimensions of the operation switch 4 and the cover member 5 in the front-rear direction can be reduced. Therefore, it is possible to provide the top plate elevating type fixture 1 with improved usability for the user.

(Second Embodiment)
Next, a second embodiment according to the present invention will be described. The present embodiment is different from the above-described embodiment in that the locking portion 52 and the operation switch 4 overlap each other when viewed from the front-rear direction.
FIG. 12 is a top view of the operation switch 4 and the cover member 5 in the second embodiment of the present invention at the unused position P4. FIG. 13 is a top view of the operation switch 4 and the cover member 5 at the usage position P5. In the following description, the same components as those in the first embodiment described above will be designated by the same reference numerals, and the description thereof will be omitted as appropriate. Further, for reference numerals relating to configurations other than those shown in FIGS. 12 and 13, refer to FIGS. 1 to 11 as appropriate.

As shown in FIG. 12, in the present embodiment, the locking portion 52 is arranged in front of the operation switch 4 at the unused position P4. Further, the mounting portion 51b of the cover main body 51 has a front extension portion 66. The front extension portion 66 extends from the front of the upper wall 61 of the mounting portion 51b to the right. The front extension portion 66 is formed on the same plane as the upper wall 61. The front end of the front extension 66 is connected to the upper end of the closure 51a. The front extension portion 66 is formed in a rectangular shape having a longitudinal direction on the left and right when viewed from the vertical direction. The mounting portion 51b is formed in a U shape when viewed from the vertical direction by the upper wall 61, the rear extension portion 62, and the front extension portion 66. A first elongated hole 64 is formed in the front extension portion 66. The first elongated hole 64 is provided at the same position as the second elongated hole 65 in the left-right direction.

According to this embodiment, the locking portion 52 is arranged in front of the operation switch 4 at the unused position P4. Further, the first elongated hole 64 and the second elongated hole 65 are provided at the same positions in the left-right direction. As a result, as shown in FIGS. 12 and 13, the dimensions of the cover body 51 in the left-right direction can be reduced.

(Third Embodiment)
Next, a third embodiment according to the present invention will be described. This embodiment is different from the above-described embodiment in that the operation switch 4 is configured to be movable.
FIG. 14 is a side view of the operation switch 4 and the cover member 5 according to the third embodiment of the present invention.

In the present embodiment, the lower surface 2b of the top plate 2 is formed with an accommodating recess 22 capable of accommodating the operation switch 4. In the present embodiment, the cover member 5 is a portion of the front end portion of the top plate 2 that constitutes the front wall of the accommodating recess 22. That is, the cover member 5 of the present embodiment is integrally formed with the top plate 2. A switch support member 49 is rotatably attached to the wall surface behind the accommodating recess 22 with the axis O as the center of rotation. The switch support member 49 supports the operation switch 4. Specifically, the switch support member 49 has an unused position P4 in which the operation switch 4 is housed in the housing recess 22 and the operation switch 4 is exposed downward from the housing recess 22 with the axis O along the left-right direction as the center of rotation. It is rotatable between the used position P5 and the used position.

According to the present embodiment, by rotating the operation switch 4, the operation switch 4 and the cover member 5 can be relatively moved between the unused position P4 and the used position P5. Since the operation switch 4 is housed in the housing recess 22 of the top plate 2 at the unused position P4, the lower surface 2b can be flattened and the entire operation switch 4 can be covered when viewed from the front. As a result, it is difficult to find the operation switch 4 from a person other than the user. Therefore, access to the operation switch 4 by a person other than the user can be further suppressed, and usability for the user can be improved.

(Fourth Embodiment)
Next, a fourth embodiment according to the present invention will be described. This embodiment differs from the above-described embodiment in that the cover member 5 is configured to be rotatable.
FIG. 15 is a side view of the operation switch 4 and the cover member 5 according to the fourth embodiment of the present invention.

In the present embodiment, the cover member 5 is formed in a box shape with an upper opening. The rear end portion of the cover member 5 is rotatably attached to the lower surface 2b of the top plate 2 with the axis O as the center of rotation. Specifically, the cover member 5 has an unused position P4 that covers the operation switch 4 fixed to the lower surface 2b from below with the axis O whose axial direction is the left-right direction as the center of rotation, and the operation switch 4 on the top plate 2. It is rotatable between the use position P5 exposed downward.

According to this embodiment, the operation switch 4 and the cover member 5 can be relatively moved between the unused position P4 and the used position P5 by rotating the cover member 5. At the unused position P4, the cover member 5 can cover the entire operation switch 4 from below. Therefore, access to the operation switch 4 by a person other than the user can be suppressed, and usability for the user can be improved.

(Fifth Embodiment)
Next, a fifth embodiment according to the present invention will be described. This embodiment is different from the above-described embodiment in that the cover member 5 is rotatable about the vertical direction as an axial direction.
FIG. 16 is a top view of the operation switch 4 and the cover member 5 according to the fifth embodiment of the present invention.

In the present embodiment, the cover member 5 is attached to the lower surface 2b of the top plate 2 by, for example, a bolt 99 or the like. The bolt 99 is attached to the right side of the operation switch 4. The cover member 5 is rotatably attached with the axial direction (vertical direction) of the bolt 99 as a rotation axis. A fitted portion 94 is provided on the left side of the operation switch 4. The fitted portion 94 is attached to the lower surface 2b of the top plate 2. A fitting portion 93 is provided at an end portion of the cover member 5 opposite to the rotation shaft. As the cover member 5 rotates and the fitting portion 93 fits into the fitted portion 94, the cover member 5 covers the operation switch 4 from the front.

According to the present embodiment, by rotating the cover member 5, between the unused position P4 in which the cover member 5 covers the operation switch 4 from the front and the used position P5 in which the operation switch 4 is exposed to the front. The operation switch 4 and the cover member 5 can be relatively moved. Therefore, it is possible to suppress the operation of the operation switch 4 due to unintended contact with the operation switch 4.
In this embodiment, the locking portion 52 may be provided separately.

The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the present embodiment, the lock body 57 has been described for locking and unlocking by sliding the protruding piece 68 up and down, but the present invention is not limited to this. The protruding piece 68 may be rotated to unlock and lock. Further, as the lock body 57, for example, a known lock for unlocking and locking by turning the key may be used, or a locking means other than the key may be used. Further, the locking portion 52 may not be provided.

The cover member 5 has been described so as to be slidable in the left-right direction by the elongated hole 63 and the screw 11, but the present invention is not limited to this. For example, a rail-shaped member extending in the left-right direction may be provided on the lower surface 2b of the top plate 2, and a cover member may be attached to the rail-shaped member so that the top plate 2 can be slidably moved.
The cover member 5 may be configured to be slidable in the front-rear direction, for example.

The operation unit 42 may be configured to move in parallel in the vertical direction in the housing 41, for example, by separately providing a link mechanism. Further, the operation unit 42 may be a button, a pull rod, or the like.

The size of the top plate 2 and the shape seen from the vertical direction can be changed as appropriate. For example, the top plate 2 may be formed in a circular shape, an elliptical shape, a polygonal shape, or the like when viewed from the vertical direction.
Further, the number of legs 3 is not limited to the above-described embodiment.
The top plate elevating type fixture 1 may be a fixture having a top plate other than the desk, such as a shelf.
The operation switch 4 may be configured to be movable, or both the operation switch 4 and the cover member 5 may be configured to be movable.
The operation switch 4 and the cover member 5 may be provided at a place other than the lower surface 2b of the top plate 2, such as the upper surface or the side surface of the top plate 2.

In addition, it is possible to replace the constituent elements in the above-described embodiment with well-known constituent elements as appropriate without departing from the spirit of the present invention, and the above-described embodiments and modifications may be appropriately combined.

1 Top plate elevating fixture 2 Top plate 2b (of the top plate) Bottom surface 3 Leg body 4 Operation switch 5 Cover member 33 Elevating mechanism unit 42 Operation part 51a Closure part 51b Mounting part 52 Locking part 63 Long hole P4 Unused position P5 Use position

Claims (7)

Top plate and
A leg body that has an elevating mechanism unit that moves the top plate in the vertical direction and supports the top plate, and
An operation switch having an operation unit that performs an input operation for driving the elevating mechanism unit, and
A cover member that can move relative to the operation switch between an unused position that covers the operation unit from the front and a use position that exposes the operation unit to the front.
Top plate elevating type furniture characterized by being equipped with. The top plate elevating and lowering according to claim 1, wherein one of the operation switch and the cover member has a locking portion for mooring a relative position between the operation portion and the cover member to the unused position. Ceremony fixtures. The top plate elevating fixture according to claim 1 or 2, wherein the operation switch and the cover member are provided on the lower surface of the top plate. According to any one of claims 1 to 3, the cover member covers the entire operation switch when viewed from the front of the top plate elevating fixture in the unused position. The above-mentioned top plate elevating fixture. The top plate elevating fixture according to any one of claims 1 to 4, wherein the cover member is configured to be movable between the used position and the non-used position. The top plate elevating fixture according to claim 5, wherein the cover member is configured to be slidable in the left-right direction between the used position and the non-used position. The cover member is
A closing portion located in front of the operation switch and covering the operation portion from the front in the unused position.
A mounting portion extending rearward along the lower surface of the top plate from a portion of the upper end portion of the closing portion located on one side in the left-right direction with respect to the operation switch.
Have,
The top plate elevating fixture according to claim 6, wherein the cover member is attached to the top plate so as to be slidably movable through an elongated hole extending in the left-right direction formed in the mounting portion.

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