JP2024007307A - Top plate lift type furniture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide top plate lift type furniture which can improve an appearance thereof, and can suppress interference between wiring and a user, in a lower space of the top plate.

SOLUTION: Top plate lift type furniture of one embodiment comprises: a lower structure arranged on a floor surface; an upper structure having a top plate which is arranged above the lower structure; and a lifting leg which can vertically move the upper structure with respect to the lower structure. The upper structure has an upper shield part in which an upper wiring space opened downward is formed and which extends downward from the top plate. The lower structure has a lower shield part in which a lower wiring space opened upward is formed and which extends upward from the floor surface. The upper structure is movable vertically to the lower structure in a state in which a part of the other shield part out of the upper and lower shield parts is stored in the upper wiring space or the lower wiring space which is a wiring space formed in one of the upper shield part and the lower shield part.

SELECTED DRAWING: Figure 6

COPYRIGHT: (C)2024,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to a fixture with a top that can be raised and lowered.

Fixtures with tops (e.g. desk devices, table devices, counter devices, etc.) are equipped with a lifting unit that allows the height of the top to be adjusted up or down according to the user's height, preference, purpose of use, etc. (hereinafter referred to as fixtures with an adjustable top) are known.

As an example of a tabletop lifting type fixture, Patent Document 1 listed below discloses a structure in which curtain plates are provided at positions corresponding to the rear end and both left and right ends of the top plate.
According to this configuration, the space below the top plate is surrounded by the curtain plate from the rear and both left and right sides, making it difficult for the user's lower limbs to be exposed on the side opposite to the user.

Patent No. 6967426

Incidentally, in the space below the top plate, there are cases where wiring for the lifting unit, wiring for electronic equipment used on the top plate, etc. are routed. In this case, in the prior art, there was a possibility that various types of wiring would be exposed in the space below the top plate to the front (user side) of the top liftable fixture. If various types of wiring are exposed in the space below the top, the appearance of the fixture with a liftable top may deteriorate, and the lower limbs of the user may interfere with the wiring.

The present invention provides an elevating tabletop fixture that can improve the appearance and suppress interference between the user and wiring in the space below the top.

In order to solve the above problems, the present invention employs the following aspects.
(1) An elevating top fixture according to one aspect of the present invention includes a lower structure disposed on a floor surface, an upper structure having a top plate disposed above the lower structure, and the lower structure. Lifting legs that connect the structure and the upper structure and allow the upper structure to move vertically with respect to the lower structure, the upper structure opening downward. The lower structure includes an upper shielding part in which an upper wiring space is formed and extends downward from the top plate, and the lower structure includes a lower shielding part in which a lower wiring space opening upward is formed and extends upward from the floor surface. The upper structure includes the upper shielding part and the lower wiring space inside the upper wiring space or the lower wiring space, which is a wiring space formed in one of the upper shielding part and the lower shielding part. The shielding member is configured to be movable up and down with respect to the lower structure in a state where a part of the other shielding member is accommodated.

According to this aspect, the wiring of the lifting legs and the like can be routed from the upper side to the lower side through the upper wiring space and the lower wiring space. That is, since the wiring is surrounded by the curtain plate, it is possible to suppress the wiring from being exposed to the outside of the ceiling liftable fixture. As a result, the appearance can be improved, and interference between the user and the wiring in the space below the top plate can be suppressed.

(2) In the elevating top fixture according to the aspect (1) above, the lower structure is arranged along the floor surface, and the base portion supports the lower shielding portion and the elevating legs from below. Preferably, the elevating leg is provided in a portion of the base portion that is located forward of the lower shielding portion.
According to this aspect, it is easier to secure an effective space in the wiring space, compared to a configuration in which the elevating legs are accommodated in the wiring space together with the wiring. Therefore, wiring can be easily routed within the wiring space.

(3) In the top-liftable fixture according to the aspect (1) or (2) above, the upper shielding portion includes an upper rear plate extending downward from a rear end of the top plate, and an upper front plate extending downward from a portion located forward of the upper rear plate and forming the upper wiring space between the upper rear plate; and an upper front plate extending downward from both ends of the top plate in the left and right direction; , a pair of upper side plates that close the upper wiring space from both sides in the left and right direction, and the lower shielding portion includes a lower rear plate located forward of the upper rear plate, and a lower rear plate located forward of the lower rear plate. and a lower front plate that forms the lower wiring space between it and the lower rear plate, and a pair of upper side plates that is located on the inside of the lower wiring space in the left-right direction. a pair of lower side plates closed from the upper shielding part, and a housing opening downward and accommodating the pair of lower side plates in a position of the upper shielding part overlapping the pair of lower side plates when viewed from the vertical direction. It is preferable that a portion be formed.
According to this aspect, the upper wiring space is formed between the upper front plate and the upper rear plate in the upper shielding part, and the lower wiring space is formed between the lower front plate and the lower rear board in the lower shielding part, so that the lower side board The lower side plate and the upper side plate can be made thinner than in the case where the wiring space is formed in the upper side plate or the upper side plate. This makes it possible to improve the appearance of the fixture with an adjustable top.
Moreover, since the housing part is formed in the upper shielding part at a position overlapping the pair of lower side plates when viewed from the vertical direction, interference between the upper shielding part and the lower shielding part occurs when the top plate moves up and down. can be suppressed. Therefore, it is easy to ensure the stroke of the top plate.

(4) In the top plate lifting type fixture according to the aspect (3) above, the upper front plate includes a first fixing portion fixed to the top plate, and a portion of the lifting leg below the first fixing portion. or a second fixing part fixed to the pair of upper side plates.
According to this aspect, since the upper front plate is fixed at two places, upper and lower, it is easy to ensure the support strength of the upper front plate.

(5) In the liftable top fixture according to the aspect (3) or (4) above, the member located on one side in the front-rear direction of the lower rear plate and the lower front plate covers the lower wiring space. It is preferable that it is movable between an open state in which it opens to one side in the front-rear direction and a shielded state in which the lower wiring space is shielded from one side in the front-rear direction.
According to this aspect, by opening the member located on one side, it becomes easier to access the lower wiring space from one side in the front-rear direction. Therefore, it becomes easier to install and maintain the wiring accommodated in the lower wiring space without performing work such as removing the upper structure from the lower structure, for example.

(6) In the tabletop lifting fixture according to the aspect (5) above, the member located on the one side is the lower front plate, and the lower front plate is configured to move between the open state and the shielded state. Preferably, it is supported by the pair of lower side plates so as to be movable up and down.
According to this aspect, the lower front plate is vertically movably supported by the lower side plate, so that the elevating mechanism (for example, the guide groove, etc.) of the lower front plate can be seen from the rear of the top elevating fixture. It can be suppressed. Further, in the open state, the lower part of the lower wiring space is opened, so wiring construction and maintenance are easier to perform than when accessing the lower wiring space from above.

According to each of the above aspects, it is possible to improve the appearance and to suppress interference between the user and the wiring in the space below the top plate.

FIG. 2 is a perspective view of the top-elevating fixture according to the first embodiment, viewed from the front. FIG. 2 is a front view of the top plate elevating fixture according to the first embodiment, viewed from the front. FIG. 2 is a rear view of the top plate elevating fixture according to the first embodiment, as seen from the rear. FIG. 2 is a side view of the top plate elevating fixture according to the first embodiment. FIG. 2 is a plan view of the top plate elevating fixture according to the first embodiment. 6 is a sectional view corresponding to the line VI-VI in FIG. 5. FIG. 4 is a cross-sectional view corresponding to the line VII-VII in FIG. 3. FIG. FIG. 3 is a perspective view showing a space below the top plate according to the first embodiment. FIG. 7 is a plan view of a top plate elevating fixture according to a second embodiment. FIG. 12 is a perspective view of the top lift type fixture according to the third embodiment, showing when the lower wiring space is in a shielded state. FIG. 12 is a perspective view of the top lift type fixture according to the third embodiment, showing when the lower wiring space is in an open state. FIG. 8 is a cross-sectional view corresponding to FIG. 7 according to a third embodiment. It is a perspective view of the top plate elevating fixture according to a modification.

Next, embodiments of the present invention will be described based on the drawings. In the embodiments and modified examples described below, corresponding components may be given the same reference numerals and explanations may be omitted. In the following explanation, expressions indicating relative or absolute arrangement, such as "parallel", "perpendicular", "centered", and "coaxial", do not only strictly refer to such arrangement, but also refer to tolerances. It also represents a state in which the objects are relatively displaced at an angle or distance that allows the same function to be obtained. Furthermore, in the present embodiment, "facing" is not limited to the case where the orthogonal directions (normal directions) of the two surfaces are the same, but also includes the case where the orthogonal directions intersect with each other.

(First embodiment)
[Tabletop lifting fixture 1]
FIG. 1 is a perspective view of the tabletop elevating fixture 1 seen from the front. FIG. 2 is a front view of the top elevating fixture 1 seen from the front. FIG. 3 is a rear view of the tabletop elevating fixture 1 seen from the rear. FIG. 4 is a side view of the tabletop elevating fixture 1.
The lifting-top fixture 1 shown in FIGS. 1 to 4 is installed in various facilities (for example, offices, halls, public facilities, etc.). In the following explanation, the direction perpendicular to the floor surface F is referred to as the up-down direction (arrow UP is on the upper side), and the two directions perpendicular to the up-down direction are referred to as the front-rear direction (arrow FR is on the front side) and the left-right direction (arrow LH is on the left side), respectively. explain.

The top-lifting fixture 1 is, for example, an electric-lifting fixture with a top. The top elevating fixture 1 includes a lower structure 10, an upper structure 11 having a top plate 13, and an elevating unit 12. In the top elevating fixture 1, the vertical height of the top 13 can be adjusted by moving the upper structure 11 up and down relative to the lower structure 10 by driving the elevating unit 12.

<Lower structure 10>
The lower structure 10 includes a base portion 21 and a lower shielding portion 22.
The base portion 21 is formed into a plate shape extending along the floor surface F, with the thickness direction being in the up-down direction. The base portion 21 is formed in a C-shape that opens forward in plan view (when viewed from the top and bottom). Specifically, the base portion 21 includes a left-right extending portion 21a extending in the left-right direction, and a pair of front-rear extending portions 21b extending forward from both ends of the left-right extending portion 21a in the left-right direction. The base portion 21 is in contact with the floor F via casters 25 provided at both ends of the left-right extending portion 21a and at the front end of the front-back extending portion 21b.

The lower shielding part 22 surrounds the lower half of the space below the top plate 13 from both sides in the rear and left and right directions. The lower shielding part 22 extends upward from the base part 21. The lower shielding part 22 has a C-shape that extends in a plan view following the shape of the base part 21 in a plan view. Specifically, the lower shielding portion 22 includes a lower front and rear curtain plate 31 and a pair of lower side plates 32.

The lower front and rear curtain plates 31 shield the space below the top plate 13 in the front and rear direction. The lower front and rear curtain plates 31 include a lower front plate 35 and a lower rear plate 36.
The lower front plate 35 is arranged with the front-rear direction as the thickness direction. The lower front plate 35 extends upward from the left-right extending portion 21a. The lower front plate 35 extends over the entire length of the left-right extending portion 21a in the left-right direction.

The lower rear plate 36 has its thickness direction in the front-rear direction, and is provided at a distance behind the lower front plate 35. As shown in FIGS. 3 and 4, the lower rear plate 36 is fixed to the rear end surface of the left-right extending portion 21a, with its lower end protruding further downward than the base portion 21. As shown in FIGS. However, the lower rear plate 36 may be fixed to the upper surface of the base portion 21. In the illustrated example, the lower end surface of the lower rear plate 36 is close to the floor surface F. Both ends of the left-right extending portion 21 a in the left-right direction protrude outward in the left-right direction with respect to the base portion 21 . Note that the upper end surfaces of the lower front plate 35 and the lower rear plate 36 are located at the same height.

The lower side plates 32 are provided on both sides of the lower front and rear curtain plates 31 in the left-right direction. Specifically, the lower side plate 32 is arranged with the left-right direction as the thickness direction. The lower side plates 32 are fixed to the outer end surfaces of the base portion 21 (the left-right extending portion 21a and the front-rear extending portion 21b) in the left-right direction, with the lower end portions protruding below the base portion 21. In the illustrated example, the lower end surface of the lower side plate 32 is located at the same height as the lower end surface of the lower rear plate 36. On the other hand, the upper end surface of the lower side plate 32 is located at the same height as the upper end surface of the lower front plate 35 and the upper end surface of the lower rear plate 36. The front end surface of the lower side plate 32 is arranged at the same position as the front end surface of the longitudinally extending portion 21b. However, the front end surface of the lower side plate 32 may be disposed further forward than the front end surface of the longitudinally extending portion 21b. The rear end surface of the lower side plate 32 is fixed to both ends of the front surface of the lower rear plate 36 in the left and right direction. Note that an adjuster 37 that can adjust the height is provided on the lower surface of the lower shielding part 22.

A portion of the lower shielding portion 22 located between the lower front plate 35 and the lower rear plate 36 and surrounded by the lower side plates 32 constitutes a lower wiring space 38 . The lower wiring space 38 is a rectangular parallelepiped-shaped space above the left-right extending portion 21a, with the left-right direction as the longitudinal direction (the front-rear direction as the short-side direction), and extending in the up-down direction. The lower end opening of the lower wiring space 38 is closed by the left and right extending portions 21a. On the other hand, the upper end opening of the lower wiring space 38 is open upward.

<Upper structure 11>
FIG. 5 is a plan view of the tabletop elevating fixture 1. As shown in FIG. FIG. 6 is a cross-sectional view corresponding to the line VI-VI in FIG.
As shown in FIGS. 2, 5, and 6, the upper structure 11 is connected to the lower structure 10 via a lifting unit 12. The upper structure 11 includes an upper shielding part 51, a support beam 52, a top plate 13, a tilting mechanism 53, and a shelf board 54.
The upper shielding part 51 surrounds the upper half of the space below the top plate 13 from both sides in the rear and left and right directions. The upper shielding part 51 is formed in a C-shape that is one size larger than the lower shielding part 22 in plan view. Specifically, the upper shielding portion 51 includes an upper front and rear curtain plate 61 and a pair of upper side plates 62.

The upper front and rear curtain plates 61 shield the space below the top plate 13 in the front and rear direction. The upper front and rear curtain plates 61 include an upper front plate 65 and an upper rear plate 66.
The upper front plate 65 is arranged in front of the lower front plate 35 with the thickness direction being in the front-rear direction. The lower end of the upper front plate 65 overlaps the upper end of the lower front plate 35 in a front view (as viewed from the front and back direction) when the top plate 13 is at the uppermost position. Therefore, in the entire stroke of the top plate 13 (between the uppermost end position and the lowermost end position), the upper front plate 65 and the lower front plate 35 at least partially overlap each other in a front view. Note that the lower end surface of the upper front plate 65 is located between the upper end surface of the lower front plate 35 and the floor surface F and above the lower end surface of the lower front plate 35 when the top plate 13 is at the lowest position. (see Figure 6).

FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. FIG. 8 is a perspective view showing the space below the top plate 13.
As shown in FIGS. 7 and 8, a housing portion 65a is formed in a portion of the upper front plate 65 that overlaps each lower side plate 32 in plan view. In this embodiment, the housing portion 65a is a lateral space of the upper front plate 65, which is formed by the length of the upper front plate 65 in the left-right direction being shorter than the distance between the lower side plates 32. . When the top plate 13 is at the uppermost position, the upper end of each lower side plate 32 is housed in the corresponding housing part 65a. Therefore, each lower side plate 32 moves up and down within the corresponding accommodation portion 65a during the entire stroke of the top plate 13 (between the uppermost end position and the lowermost end position). Note that the housing portion 65a may be provided only in a portion of the upper front plate 65 that interferes with the lower side plate 32 when the top plate 13 strokes.

As shown in FIGS. 6 and 7, the upper rear plate 66 has its thickness direction in the front-rear direction, and is spaced rearward from the upper front plate 65. The upper rear plate 66 extends in the left-right direction and the up-down direction behind the lower rear plate 36. Both ends of the upper rear plate 66 in the vertical direction are located on the outer side of the upper front plate 65 in the vertical direction. Further, both end portions of the upper rear plate 66 in the left-right direction are located on the outer side in the left-right direction than both end portions of the lower rear plate 36 in the left-right direction. The lower end of the upper rear plate 66 overlaps the upper end of the lower rear plate 36 when viewed from the front and back direction when the top plate 13 is at the uppermost position. Therefore, during the entire stroke of the top plate 13 (between the uppermost end position and the lowermost end position), the upper rear plate 66 and the lower rear plate 36 at least partially overlap each other in a front view. Note that the lower end surface of the upper rear plate 66 is located between the lower end surface of the lower front plate 35 and the floor surface F when the top plate 13 is at the lowest position (see FIG. 6).

As shown in FIGS. 4 and 5, the upper side plates 62 are provided on both sides of the upper front and rear curtain plates 61 in the left-right direction. Specifically, the upper side plate 62 is arranged with the left-right direction as the thickness direction. The upper side plates 62 are fixed to both ends of the front surface of the upper rear plate 66 in the left and right direction. However, the upper side plates 62 may be fixed to both end surfaces of the upper rear plate 66 in the left and right direction. The upper end surface of the upper side plate 62 is located at the same height as the upper end surface of the upper rear plate 66. The lower end surface of the upper side plate 62 is located at the same height as the lower end surface of the upper rear plate 66. The front end surface of the upper side plate 62 is located further forward than the front end surface of the lower side plate 32. The lower end portion of the upper side plate 62 overlaps the upper end portion of the lower side plate 32 in a side view (as seen from the left and right direction) when the top plate 13 is at the uppermost position. Therefore, in the entire stroke of the top plate 13 (between the uppermost end position and the lowermost end position), at least a portion of the upper side plate 62 and the lower side plate 32 overlap in side view. Note that the lower end surface of the upper side plate 62 is located between the lower end surface of the lower side plate 32 and the floor surface F when the top plate 13 is at the lowest position (see FIG. 6).

As shown in FIGS. 5 to 7, in the upper shielding portion 51, a portion located between the upper front plate 65 and the upper rear plate 66 and surrounded by the upper side plates 62 constitutes an upper wiring space 68. do.
The upper wiring space 68 is formed into a rectangular shape that is one size larger than the lower wiring space 38 in plan view. The lower end opening of the upper wiring space 68 is open downward. The upper wiring space 68 communicates with the lower wiring space 38 through the lower end opening. The upper end portion of the lower front and rear curtain plate 31 is accommodated in the upper wiring space 68 through the lower end opening of the upper wiring space 68 when the top plate 13 is at the uppermost position. Therefore, during the entire stroke of the top plate 13, at least a portion of the lower front and rear curtain plates 31 is accommodated within the upper wiring space 68.

As shown in FIGS. 5 and 6, a wiring tray 69 is provided in the upper wiring space 68.
The wiring tray 69 is located at the upper part of the upper rear plate 66 (a portion located above the lower front and rear curtain plates 31 and below the top plate 13 when the top plate 13 is at the lowest position). is attached to. The wiring tray 69 is formed in an L-shape when viewed from the side. The wiring tray 69 projects forward from the upper rear plate 66. The wiring tray 69 extends in the upper wiring space 68 in the left-right direction. A through hole 69a is formed at one end of the wiring tray 69 in the left-right direction (the right end in the illustrated example). The through hole 69a passes through the wiring tray 69 in the vertical direction. The wiring tray 69 is located at the upper part of the upper front plate 65 (a portion located above the lower front and rear curtain plates 31 when the top plate 13 is at the lowest position, and is located below the top plate 13). It may be attached to the upper front plate 65 and protrude rearward from the upper front plate 65, or it may be attached to the upper part of the upper side plate 62 and protrude inward from the upper side plate 62 in the left-right direction.

The support beam 52 is a rod member that extends in the left-right direction in a portion surrounded by the upper shielding portion 51 . The support beam 52 spans between the intermediate portions of the upper end portions of the upper side plates 62 in the front-rear direction.

The top plate 13 is provided in a portion surrounded by the upper shielding part 51. The top plate 13 is formed into a rectangular shape as a whole in plan view by combining a fixed top plate 13a and a tilting top plate 13b.
The fixed top plate 13a is a top plate that cannot be tilted. The fixed top plate 13a constitutes the rear part of the top plate 13. The fixed top plate 13a has a rear end surface fixed to the upper rear plate 66, and both end surfaces in the left and right direction fixed to the corresponding upper side plates 62. The upper end portions of the upper rear plate 66 and the upper side plate 62 protrude above the fixed top plate 13a. The upper end of the upper front plate 65 is fixed to the lower surface of the front end of the fixed top plate 13a. That is, the upper end portion of the upper front plate 65 constitutes a first fixing portion 65c (see FIG. 6). Note that the front end surface of the fixed top plate 13a has an arcuate shape that protrudes rearward in plan view.

As shown in FIG. 5, an electrical function section 13c is provided at the rear end of the fixed top plate 13a. The electrical function part 13c is embedded in the fixed top plate 13a, with the connecting part 13d exposed on the upper surface of the fixed top plate 13a. The connection part 13d is, for example, a socket, a USB (Universal Serial Bus) connector receiver, a LAN (Local Area
Network) connector receiver, etc.

As shown in FIG. 6, a wiring 13e is drawn out from the lower end of the electrical function section 13c toward an upper wiring space 68. The wiring 13e is arranged on a wiring tray 69 provided in the upper wiring space 68. The wiring 13e is guided in the horizontal direction on the wiring tray 69, and then routed downward through the through hole 69a (see FIG. 5). The wiring 13e that has passed through the through hole 69a is routed downward through the upper wiring space 68 and the lower wiring space 38, and then is drawn out below the base part 21 through the extraction hole 21c formed in the base part 21. The pull-out hole 21c is formed in the left-right extending portion 21a. The wiring 13e passing through the extraction hole 21c is routed on the floor F through between the lower shielding part 22 and the floor F, and then connected to an external power source. Note that the pull-out hole 21c may be formed at any position of the left-right extending portion 21a, or may be formed in the front-rear extending portion 21b. Further, instead of the electrical function section 13c, a wire insertion opening may be provided for routing wires extending from electronic devices used on the top plate 13 into the upper wiring space 68.

A wiring guide 70 is provided within each wiring space 38, 68. The wiring guide 70 is configured to allow the various wirings routed in each of the wiring spaces 38 and 68 to be inserted therethrough, and to be deformable in the vertical direction as the top plate 13 moves up and down, so that it can follow the deformation of the various wirings. It is configured as follows. The wiring guide 70 has a configuration in which, for example, a plurality of pieces are connected in a chain shape by pins, so that adjacent pieces rotate around the pins. However, the wiring guide 70 may be formed into a hollow cylindrical shape and made of a softer material such as nonwoven fabric. A first end of the wiring guide 70 is connected to the wiring tray 69. Various types of wiring that have passed through the through hole 69a are inserted into the wiring guide 70 through the opening on the first end side. A second end portion of the wiring guide 70 is connected to the left-right extending portion 21a. The various wirings inserted into the wiring guide 70 are pulled out through the opening at the second end, and then inserted into the extraction hole 21c.

As shown in FIGS. 5 and 6, the tilting top plate 13b is a top plate provided so as to be tiltable relative to the fixed top plate 13a. The tilting top plate 13b constitutes the front part of the top plate 13. The tilting top plate 13b is supported by a support beam 52 via a tilting mechanism 53. In this embodiment, the tilting top plate 13b has two positions: a flat position P1 in which the top surface of the tilting top plate 13b is disposed on the same plane (horizontally) as the top surface of the fixed top plate 13a, and a flat position P1 where the top surface of the tilting top plate 13b faces forward. Accordingly, it tilts (rotates) around an axis along the left-right direction between an inclined position P2 extending downward.

The rear end surface of the tilting top plate 13b is formed into an arc shape having the same radius of curvature as the front end surface of the fixed top plate 13a in plan view. In the flat position P1, the rear end surface of the tilting top plate 13b faces the front end surface of the fixed top plate 13a with a slight gap therebetween. In the illustrated example, the maximum length of the tilting top plate 13b in the front-rear direction is longer than the maximum length of the fixed top plate 13a in the front-rear direction. However, the ratio of the lengths of the fixed top plate 13a and the tilting top plate 13b in the longitudinal direction to the total length of the top plate 13 can be changed as appropriate. Further, the front end surface of the fixed top plate 13a and the rear end surface of the tilting top plate 13b may be formed into a straight line in plan view.

The tilt mechanism 53 includes a pair of front support parts 71, a rear support part 72, and a tilt operation part 73.
The pair of front support parts 71 are provided at intervals in the left-right direction on the support beam 52. Each front support portion 71 projects forward from the support beam 52. The front support portion 71 includes an arm main body 71a and a rotating piece 71b. The rear end portion of the arm body 71a is fixed to the support beam 52. The rotating piece 71b is rotatably connected to the front end of the arm body 71a about an axis O (see FIG. 6) that extends in the left-right direction. The rotating piece 71b is fixed to the lower surface of the tilting top plate 13b.

The rear support portion 72 is provided between the pair of front support portions 71 in the left-right direction. The rear support portion 72 includes a first fixed base 72a, a second fixed base 72b, a gas spring 72c, and a tension spring 72d.
The first fixed base 72a is fixed to the support beam 52 in a rearwardly protruding state. The second fixed base 72b is fixed to a portion of the lower surface of the tilting top plate 13b located behind the support beam 52, facing the first fixed base 72a in the front-rear direction.

The gas spring 72c has a first end connected to the first fixed base 72a so as to be rotatable around an axis along the left-right direction, and a second end connected to the first fixed base 72a so as to be rotatable around the axis along the left-right direction. It is connected to a fixed base 72b. The tilting mechanism 53 rotates the tilting top plate 13b around the axis O by pushing up the rear end of the tilting top plate 13b as the gas spring 72c expands.
The tension spring 72d is provided side by side in the left-right direction with respect to the gas spring 72c.
The tension spring 72d has a first end connected to the first fixed base 72a so as to be rotatable around an axis along the left-right direction, and a second end connected to the first fixed base 72a so as to be rotatable around the axis along the left-right direction. It is connected to a fixed base 72b. The tension spring 72d urges the rear end of the tilting top plate 13b toward the flat position P1.

The tilting operation section 73 is provided at an intermediate portion in the left-right direction on the lower surface of the front end portion of the tilting top plate 13b. The tilting operation section 73 switches between permission and restriction of the expansion operation of the gas spring 72c.

<Elevating unit 12>
The lifting unit 12 raises and lowers the top plate 13 (fixed top plate 13a and tilting top plate 13b).
The elevating unit 12 includes a pair of elevating legs 81, an elevating operation section 82, and a control unit 83 (see FIG. 6).
The elevating legs 81 connect the lower structure 10 and the upper structure 11 so that they can move relative to each other in the vertical direction. The elevating legs 81 are provided at intermediate portions in the front-back direction of each of the front-back extending portions 21b, and at portions located inside the lower side plates 32 in the left-right direction. Therefore, the elevating legs 81 are arranged in front of the lower front plate 35 at a position surrounded by the lower shielding part 22. In addition, the elevating legs 81 are arranged so as to straddle the fixed top plate 13a and the tilting top plate 13b in the front-rear direction in a plan view.

Each elevating leg 81 is a combination of a plurality of cylindrical bodies having different external shapes in a nested manner. Each elevating leg 81 is configured to be extendable and retractable in the vertical direction by operating a drive mechanism (for example, a motor, etc.) provided inside each elevating leg 81. In this embodiment, in each lifting leg 81, a cylinder having the largest external shape among the plurality of cylinders (hereinafter referred to as large cylinder 81a) is fixed to the corresponding longitudinally extending portion 21b. On the other hand, in each elevating leg 81, a cylinder having the smallest external shape among the plurality of cylinders (hereinafter referred to as a small cylinder 81b) is fixed to the upper structure 11 via a stay 81c.

As shown in FIG. 8, the stay 81c is formed in an L-shape when viewed from the front. Specifically, the stay 81c includes a projecting portion 81c1, a first hanging portion 81c2, and a second hanging portion 81c3. The projecting portion 81c1 projects like a flange from the upper end edge of the small cylinder 81b.
A rear end portion of the projecting portion 81c1 is fixed to the lower surface of the fixed top plate 13a. The front end of the projecting portion 81c1 faces the lower surface of the tilting top plate 13b. Note that the front end portion of the projecting portion 81c1 may be in contact with the lower surface of the tilting top plate 13b when the tilting top plate 13b is in the flat position. The first hanging portion 81c2 extends downward from the outer edge of the projecting portion 81c1 in the left-right direction. The first hanging portion 81c2 is fixed to the upper end portion of the upper side plate 62. The second hanging portion 81c3 extends downward from the front edge of the projecting portion 81c1. The second hanging portion 81c3 is fixed to the support beam 52. Note that the stay 81c may be fixed to at least one of the fixed top plate 13a, the upper side plate 62, and the support beam 52.

A first wiring 81e connecting the drive mechanism and the control unit 83 is drawn out from each lifting leg 81. The first wiring 81e is routed backward from the upper end of each lifting leg 81, and then drawn into the upper wiring space 68 through a lead-in hole 65b formed in the upper front plate 65. As shown in FIG. 2, a pair of left and right lead-in holes 65b are formed at the upper end of the upper front plate 65. As shown in FIG. In the illustrated example, the lead-in holes 65b are in communication with the respective accommodating portions 65a at both ends of the upper front plate 65 in the left-right direction. Note that the position, size, etc. of the lead-in hole 65b can be changed as appropriate.

The lift operation unit 82 is provided on the other side in the left-right direction (on the left side in the illustrated example) on the lower surface of the front end portion of the tilting top plate 13b. Note that the lift operation section 82 and the tilt operation section 73 may be provided integrally. As shown in FIG. 8 , a second wiring 82 a is drawn out from the lift operation unit 82 and connects the lift operation unit 82 and the control unit 83 . The second wiring 82a is routed backward along the lower surface of the top plate 13, and then drawn into the upper wiring space 68 through one of the lead-in holes 65b.

As shown in FIG. 6, the control unit 83 controls the operation of each elevating leg 81 (drive mechanism) based on the operation of the elevating operation section 82. The control unit 83 is arranged on a wiring tray 69 provided in the upper wiring space 68. A first wiring 81e extending from each lifting leg 81 and a second wiring 82a extending from the lifting operation section 82 are connected to the control unit 83. A connection wiring 83a connecting the control unit 83 and an external power source is pulled out from the control unit 83. The connection wiring 83a is guided in the horizontal direction on the wiring tray 69, and then routed downward through the through hole 69a. The connection wiring 83a that has passed through the through hole 69a is routed downward through the wiring guide 70 in the upper wiring space 68 and the lower wiring space 38, and then pulled out below the base portion 21 through the extraction hole 21c. The connection wiring 83a that has passed through the extraction hole 21c is routed on the floor F through between the lower shielding part 22 and the floor F, and then connected to an external power source.

As shown in FIG. 8, the shelf board 54 is provided in front of the upper front and rear curtain board 61 in the space below the top board 13. The shelf boards 54 are arranged below the top plate 13 with an interval therebetween, with the vertical direction being the thickness direction. A relief portion 54a is formed in a portion of the shelf board 54 that overlaps with the elevating leg 81 in plan view. The elevating leg 81 passes through the shelf board 54 in the vertical direction through the relief portion 54a.

Both ends of the shelf board 54 in the left and right direction are fixed to corresponding upper side plates 62, respectively. A rear end portion of the shelf board 54 is fixed to an upper front board 65. Therefore, the upper front plate 65 is connected to the upper side plate 62 via the shelf board 54. That is, the shelf board 54 also has a function as a reinforcing member that supports the upper front board 65 below the top board 13. Further, the front end surface of the shelf board 54 is located in front of the fixed top plate 13a and behind the front end surface of the tilting top board 13b. In the illustrated example, the front end surface of the shelf board 54 is located at an intermediate portion of the tilting top plate 13b in the front-rear direction. That is, the shelf board 54 is arranged across the gap between the fixed top plate 13a and the tilting top plate 13b in the front-rear direction when viewed from above. Therefore, when an article such as a writing instrument falls downward from the gap between the front edge of the fixed top plate 13a and the rear edge of the tilting top plate 13b, the article can be caught on the upper surface of the shelf board 54. Note that, as shown in FIG. 6, a portion of the upper front plate 65 to which the shelf board 54 is fixed constitutes a second fixing portion 65d.

In this way, in the liftable top fixture 1 of this embodiment, the upper wiring space 68 is formed inside the upper shielding part 51 that constitutes the upper structure 11, while the lower shielding part that constitutes the lower structure 10 The configuration is such that a lower wiring space 38 is formed inside the wire 22. Furthermore, in this embodiment, the upper structure 11 is configured to be movable up and down with respect to the lower structure 10 with the upper shielding part 51 housed in the lower wiring space 38 .
According to this configuration, the wiring 13e of the electrical function section 13c and the connection wiring 83a of the control unit 83 can be routed from above to below through the upper wiring space 68 and the lower wiring space 38. That is, since the wirings 13e and 83a are surrounded by the shielding parts 22 and 51, it is possible to suppress the wirings 13e and 83a from being exposed to the outside of the ceiling liftable fixture 1. As a result, the appearance can be improved, and interference between the user and the wiring in the space below the top plate 13 can be suppressed.

In the top elevating fixture 1 of this embodiment, the elevating legs 81 are provided in a portion of the base portion 21 that is located in front of the lower shielding portion 22.
According to this configuration, it is easier to secure an effective space in the wiring spaces 38, 68 compared to a configuration in which the elevating leg 81 is accommodated in the wiring spaces 38, 68 together with the wirings 13e, 83a. Therefore, it is easy to route the wirings 13e and 83a within the wiring spaces 38 and 68.

In the top lift type fixture 1 of this embodiment, the upper shielding part 51 includes an upper rear plate 66 and an upper front plate 65 which forms an upper wiring space 68 between the upper rear plate 66 and an upper wiring space 68. The lower shielding part 22 includes a pair of upper side plates 62 that are closed from both sides in the left and right direction, and the lower shielding part 22 includes a lower rear plate 36 and a lower front plate 35 that forms a lower wiring space 38 between the lower rear plate 36. The configuration includes a pair of lower side plates 32 that close the lower wiring space 38 from both sides in the left and right direction.
According to this configuration, an upper wiring space 68 is formed between the upper front plate 65 and the upper rear plate 66 in the upper shielding part 51, and a lower wiring space 38 is formed between the lower front plate 35 and the lower rear plate 36 in the lower shielding part 22. By forming the wiring space, the lower side plate 32 and the upper side plate 62 can be made thinner than when a wiring space is formed in the lower side plate 32 and the upper side plate 62. Thereby, the appearance of the tabletop lifting type fixture 1 can be improved.

Moreover, in the top plate lifting type fixture 1 of this embodiment, the upper shielding part 51 is opened downward and accommodates the pair of lower side plates 32 at a position overlapping the pair of lower side plates 32 when viewed from the vertical direction. The configuration is such that a housing portion 65a is formed.
According to this configuration, interference between the upper shielding part 51 and the lower shielding part 22 can be suppressed when the top plate 13 moves up and down. Therefore, it is easy to ensure the stroke of the top plate 13.

In the top plate elevating fixture 1 of this embodiment, the upper front plate 65 includes a first fixing part 65c fixed to the top plate 13, and a first fixing part 65c fixed to the upper side plate 62 below the first fixing part 65c. 2 fixing portion 65d.
According to this configuration, since the upper front plate 65 is fixed at two places, upper and lower, it is easy to ensure the support strength of the upper front plate 65.

(Second embodiment)
In the embodiment described above, a configuration has been described in which each of the fixed top plate 13a and the tilting top plate 13b is formed over the entire left and right direction of the top plate 13, but the present invention is not limited to this configuration.
In the top elevating fixture 1 shown in FIG. 9, the fixed top plate 13a is formed into a C-shape in plan view. Specifically, the fixed top plate 13a includes a rear mounting section 13a1 and a pair of side mounting sections 13a2.

The rear mounting portion 13a1 constitutes the entire length of the rear portion of the top plate 13 in the left-right direction. The rear mounting portion 13a1 has a rear end surface fixed to the upper rear plate 66, and both end surfaces in the left and right direction fixed to the corresponding upper side plates 62.
Each side mounting portion 13a2 extends forward from both ends of the rear mounting portion 13a1 in the left and right direction. The outer end surface of each side mounting portion 13a2 in the left and right direction is fixed to the upper side plate 62. Elevating legs 81 are fixed to the lower surface of each side mounting portion 13a2 via stays 81c. A support beam 52 is fixed to a portion of the lower surface of each side mounting portion 13a2 located forward of the stay 81c.

The tilting top plate 13b is disposed inside the fixed top plate 13a (a portion surrounded by the rear placement part 13a1 and the side placement part 13a2) in plan view. The tilting top plate 13b is supported by a support beam 52 via a tilting mechanism 53. That is, the tilting top plate 13b is connected to the elevating leg 81 via the support beam 52 and the fixed top plate 13a.

In this embodiment, in particular, the fixed top plate 13a (lateral placement portions 13a2) is arranged on both sides of the tilting top plate 13b in the left-right direction, so that articles (writing implements, food and drinks, etc.) that do not want to be tilted can be placed on the sides. It can be placed on the placing portion 13a2. Therefore, usability can be improved.

(Third embodiment)
FIG. 10 is a perspective view of the top lift type fixture 1 according to the third embodiment, showing when the lower wiring space 38 is in a shielded state. FIG. 11 is a perspective view of the top lift type fixture 1 according to the third embodiment, showing when the lower wiring space 38 is in an open state. FIG. 12 is a sectional view corresponding to FIG. 7 according to the third embodiment. This embodiment differs from the first embodiment described above in that the lower wiring space 38 can be opened.

In the top elevating fixture 1 shown in FIGS. 10 to 12, a lower front plate (a member located on one side) 35 is supported by a lower side plate 32 so as to be movable up and down. Specifically, guide grooves 32a are formed at positions facing each other in the left-right direction among the lower side plates 32, respectively. The guide groove 32a opens on the inner surface of the lower side plate 32 and extends in the vertical direction. The guide groove 32a extends over the entire length of the lower side plate 32 in the vertical direction. Further, the dimension of the guide groove 32a in the front-rear direction is larger than the dimension (thickness) of the lower front plate 35 in the front-rear direction. Both ends of the lower front plate 35 in the left-right direction are inserted into the guide grooves 32a through the upper end openings of the corresponding guide grooves 32a. Thereby, the lower front plate 35 is supported so as to be movable up and down with respect to the lower side plate 32 along the guide groove 32a.

As shown in FIG. 10, when the lower front plate 35 is located at the lower end of the guide groove 32a due to its own weight, it shields the lower wiring space 38 from the front (shielding state). As shown in FIG. 11, when the lower front plate 35 is moved upward from the shielded state along the guide groove 32a, it opens the lower wiring space 38 forward (open state). In this embodiment, the lower front plate 35 approaches or contacts the upper surface of the base portion 21 from above when in the shielding state. The lower end edge of the lower front plate 35 may be provided with a cushioning material or the like that contacts the base portion 21 in the shielded state.

However, for example, if the lower end edge of the guide groove 32a is arranged above the upper surface of the base part 21, and when the lower front plate 35 is supported by the lower end edge of the guide groove 32a, the lower end edge of the lower front plate 35 and the base part 21 There may be a gap between the top surface and the top surface. In other words, in the present embodiment, the shielded state is defined as the shielding area of the lower wiring space 38 by the lower front plate 35 being larger than that in the open state. Further, the lower front plate 35 may be provided with a notch or the like as a finger rest when moving up and down. Further, a stopper or the like may be provided to restrict the downward movement of the lower front plate 35 when the lower wiring space 38 is in the open state.

According to the present embodiment, during maintenance of the lower wiring space 38 or the like, by pulling the lower front plate 35 upward with respect to the lower side plate 32, the gap between the upper surface of the base portion 21 and the lower edge of the lower front plate 35 is The lower wiring space 38 is opened forward. Thereby, the lower wiring space 38 can be accessed from the front. Therefore, it is easy to install and maintain the wiring (for example, the wiring 13e, etc.) accommodated in the lower wiring space 38 without performing work such as removing the upper structure 11 from the lower structure 10, for example.
Moreover, in the present embodiment, the lower front plate 35 is supported by the lower side plate 32 so as to be movable up and down, so that the lower front plate 35 can be moved up and down from the rear of the top elevating fixture 1 (for example, the guide groove 32a, etc.). can be suppressed from being visually recognized. Further, in the open state, the lower part of the lower wiring space 38 is opened, so wiring construction and maintenance are easier to perform than when accessing the lower wiring space 38 from above.

In addition, in the embodiment described above, a configuration has been described in which the open state and the shielded state of the lower wiring space 38 are switched by moving the lower front plate 35, but the present invention is not limited to this configuration. For example, the lower rear plate 36 may be moved to switch the lower wiring space 38 between an open state and a shielded state.
In the embodiment described above, a configuration in which the lower front plate 35 moves up and down has been described, but the configuration is not limited to this. For example, a configuration may be used in which the lower front plate 35 and the lower rear plate 36 are rotatably supported by the lower side plates 32 or the like, so that the lower wiring space 38 is opened.
In the embodiment described above, a configuration in which the entire lower front plate 35 moves has been described, but the configuration is not limited to this. The lower wiring space 38 may be opened by moving a portion of the lower front plate 35.
Although the above-described embodiment has been described using the top plate elevating fixture 1 of the first embodiment as an example, the structure is not limited to this. The configuration of this embodiment may be adopted as the top elevating fixture 1 of the second embodiment.

(Other variations)
Although preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Additions, omissions, substitutions, and other changes to the configuration are possible without departing from the spirit of the present invention. The invention is not limited by the above description, but only by the scope of the claims appended hereto.
In the embodiment described above, the configuration in which the top plate 13 includes the fixed top plate 13a and the tilting top plate 13b has been described, but the present invention is not limited to this configuration. For example, the top plate 13 may be composed of only a fixed top plate, or the top plate 13 may be composed of only a tilting top plate, as in a fixture 1 with a liftable top plate shown in FIG. 13.
In the above-described embodiment, a configuration has been described in which the lower shielding section 22 is accommodated in the upper wiring space 68 of the upper shielding section 51, but the present invention is not limited to this configuration. The upper shielding part 51 may be accommodated in the lower wiring space 38 of the lower shielding part 22.

In the embodiment described above, a configuration has been described in which the lower wiring space 38 is formed in the lower front and rear curtain plate 31 and the upper wiring space 68 is formed in the upper front and rear curtain plate 61, but the present invention is not limited to this configuration. For example, a lower wiring space may be formed in the lower side plate 32 and an upper wiring space may be formed in the upper side plate 62. Alternatively, the lower wiring space 38 may be formed across the lower front and rear curtain plates 31 and the lower side plates 32, and the upper wiring space 68 may be formed across the upper front and rear curtain plates 61 and the upper side plates 62.
In the embodiment described above, a case has been described in which the wiring spaces 38 and 68 are each formed by combining a plurality of plate materials, but the present invention is not limited to this configuration. The wiring space may be a hole formed in the plate material.

In the embodiment described above, the lower shielding part 22 and the upper shielding part 51 each include front and rear curtain plates and side plates, but the present invention is not limited to this configuration. The lower shielding part 22 and the upper shielding part 51 may include at least one of a front and rear curtain plate and a side plate.
In the embodiment described above, a configuration has been described in which the upper front plate 65 is fixed to the upper side plate 62 via the shelf board 54 as the second fixing part, but the present invention is not limited to this configuration. The upper front plate 65 may be directly fixed to the upper front plate 65, or may be fixed to the elevating leg 81 (small cylinder body 81b).
In the embodiment described above, the configuration in which the elevating legs 81 are provided outside the wiring spaces 38 and 68 has been described, but the configuration is not limited to this. The elevating legs 81 may be provided inside the wiring spaces 38 and 68.
In the above-described embodiment, a desk device was used as an example of the tabletop elevating fixture, but the present invention is not limited to this configuration. Embodiments of the present invention can be applied to various fixtures with a top plate that can be raised and lowered, such as shelves, cabinets, cart devices, and the like.

In addition, the components in the embodiments described above can be replaced with known components as appropriate without departing from the spirit of the present invention, and the modifications described above may be combined as appropriate.

1: Top plate elevating fixture 10: Lower structure 11: Upper structure 13: Top plate 21: Base part 22: Lower shielding part (the other shielding part, one shielding part)
32: Lower side plate 35: Lower front plate (member located on one side)
36: Lower rear plate 38: Lower wiring space 51: Upper shielding part (one shielding part, the other shielding part)
62: Upper side plate 65: Upper front plate 65a: Accommodating part 65c: First fixing part 65d: Second fixing part 66: Upper rear plate 68: Upper wiring space 81: Lifting leg F: Floor surface

Claims (6)

a lower structure placed on the floor;
an upper structure having a top plate disposed above the lower structure;
Elevating legs that connect the lower structure and the upper structure and allow the upper structure to move in the vertical direction with respect to the lower structure,
The upper structure includes an upper shielding part that has an upper wiring space that opens downward and extends downward from the top plate,
The lower structure includes a lower shielding part that has a lower wiring space that opens upward and extends upward from the floor surface,
The upper structure includes the upper shielding part and the lower shielding part inside the upper wiring space or the lower wiring space, which is a wiring space formed in one of the upper shielding part and the lower shielding part. A top plate elevating fixture configured to be movable up and down with respect to the lower structure in a state where a part of the other shielding part is accommodated. The lower structure includes a base part that is arranged along the floor surface and supports the lower shielding part and the elevating leg from below,
The top elevating fixture according to claim 1, wherein the elevating legs are provided in a portion of the base portion located in front of the lower shielding portion. The upper shielding part is
an upper rear plate extending downward from the rear end of the top plate;
an upper front plate that extends downward from a portion of the top plate that is located forward of the upper rear plate and forms the upper wiring space between the upper rear plate;
a pair of upper side plates extending downward from both ends of the top plate in the left and right direction and closing the upper wiring space from both sides in the left and right direction;
The lower shielding part is
a lower rear plate located forward of the upper rear plate;
a lower front plate located forward of the lower rear plate and forming the lower wiring space between the lower rear plate;
a pair of lower side plates arranged inside the pair of upper side plates in the left-right direction and closing the lower wiring space from both sides in the left-right direction;
1 or 2 , wherein the upper shielding portion is formed with a housing portion opening downward and accommodating the pair of lower side plates at a position overlapping the pair of lower side plates when viewed from the vertical direction. The tabletop lifting fixture described in 2. The upper front plate is
a first fixing part fixed to the top plate;
The top elevating fixture according to claim 3, further comprising a second fixing part fixed to the elevating legs or the pair of upper side plates below the first fixing part. Of the lower rear plate and the lower front plate, the member located on one side in the front-rear direction is in an open state in which the lower wiring space is opened to one side in the front-rear direction, and the lower wiring space is opened to one side in the front-rear direction. 4. The fixture according to claim 3, wherein the fixture is movable between a shielding state and a shielding state. The member located on the one side is the lower front plate,
The top elevating fixture according to claim 5, wherein the lower front plate is supported by the pair of lower side plates to be movable up and down between the open state and the shielded state.

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