JP2024025154A - Furniture with top plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide furniture with a top plate capable of securing operational reliability of a top plate switching mechanism and a travelling part switching mechanism.

SOLUTION: Furniture with a top plate includes: a support structure having a travelling part travelling on a floor surface; a top plate unit supported by the support structure so as to be rotatable around a first axis line along a right-left direction between a use position and a non-use position; a top plate switching mechanism disposed on one side in the right-left direction with respect to a partition member so as to be movable between a locked state and an unlocked state; and a travelling part switching mechanism disposed on the other side in the right-left direction with respect to the partition member so as to be movable between a first holding state and a second holding state. The top plate unit includes a bracket for connecting the top plate and the support structure, and supporting the partition member. The bracket supports the partition member in a state of being adjacent to each other in the right-left direction with respect to the partition member, and includes a side wall part disposed separated in the right-left direction with respect to the top plate switching mechanism and the travelling part switching mechanism.

SELECTED DRAWING: Figure 5

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a fixture with a top plate.

As a fixture with a top plate, it is rotatably supported by a support structure with casters that can run on the floor and between a use position where the work surface faces upward and a non-use position where the work surface faces forward. A configuration with a top plate and a top plate is known. For example, Patent Document 1 below discloses that a single lever can switch between the locked and unlocked positions of casters (caster switching operation) and switch between the used position and non-used position of the top plate (flap operation). Possible configurations are disclosed. In the configuration of Patent Document 1 below, the top plate holder fixed to the lower surface of the top plate is rotatably provided with a lever for performing a flap operation on one side in the left-right direction, and casters are provided on the other side in the left-right direction. A lock for performing a switching operation is rotatably provided.

Patent No. 2989581

By the way, in the prior art, members having different functions (levers and locks) are directly supported by a top plate holder fixed to the lower surface of the top plate. In this case, the dimensional accuracy of the top plate holder, the top plate, warpage of the top plate, etc. may affect the relative position of the lever and lock, which may impair the mobility of the lever and lock.

The present invention provides a fixture with a top plate that can ensure the operational reliability of the top plate switching mechanism and the traveling section switching mechanism.

In order to solve the above problems, the present invention employs the following aspects.
(1) A fixture with a top plate according to one aspect of the present invention has a running part that runs on a floor surface, and a state in which the running part cannot run on the floor surface, and a state in which the running part cannot run on the floor surface. It is switchable between a runnable state in which it can run on a surface, and has a support structure installed on the floor surface and a top plate supported by the support structure, and the work surface of the top plate is a top plate unit supported by the support structure so as to be rotatable about a first axis along the left-right direction between a use position facing upward and a non-use position where the work surface faces one side in the front-rear direction; A locking state in which a partition member provided below the top plate unit engages with the support structure to restrict rotation of the top plate unit relative to the support structure about the first axis to the non-use position. , and in a left-right direction with respect to the partition member so as to be movable between an unlocked state in which engagement with the support structure is released and rotation of the top plate unit about the first axis relative to the support structure is allowed. a top plate switching mechanism disposed on one side of the top board; a traveling section switching mechanism disposed on the other side in the left-right direction with respect to the partition member; and the top plate unit includes a bracket that connects the top plate and the support structure and supports the partition member; The bracket supports the partition member in a state adjacent to the partition member in the left-right direction, and is spaced apart from the top plate switching mechanism and the traveling section switching mechanism in the left-right direction. It has a side wall.

According to this aspect, since the top plate switching mechanism and the running part switching mechanism are distributed and arranged on both sides in the left-right direction with respect to the partition member, when the top plate switching mechanism and the running part switching mechanism move, one The movement of one mechanism can be prevented from being obstructed by the other mechanism. Moreover, since the top plate switching mechanism and the traveling section switching mechanism are arranged apart from the bracket (side wall part) in the left and right direction, the top plate switching mechanism can be switched regardless of the dimensional accuracy of the bracket or the top plate or the warpage of the top plate. The relative positions of the mechanism and the traveling section switching mechanism can be stabilized. Thereby, operational reliability of the top plate switching mechanism and the traveling section switching mechanism can be ensured.

(2) In the fixture with a top plate according to the aspect (1) above, the side wall portion includes one side wall portion spaced apart from the top plate switching mechanism on one side in the left-right direction, and the running portion. It is preferable to include the other side wall portion spaced apart from the switching mechanism on the other side in the left-right direction.
According to this aspect, the top plate switching mechanism and the traveling section switching mechanism are surrounded from both sides in the left-right direction by the one side wall part and the other side wall part of the bracket. Therefore, the design quality can be improved. In addition, it becomes difficult for articles and the like to enter around the top plate switching mechanism and the traveling section switching mechanism. Therefore, it is possible to prevent the top plate switching mechanism and the running part switching mechanism from interfering with surrounding articles and preventing the operations of the top plate switching mechanism and the running part switching mechanism from being obstructed by the articles or the like.

(3) In the fixture with a top plate according to the aspect (1) or (2) above, the partition member is supported by the bracket so as to be movable in a first direction, and the partition member is arranged in a first direction in the first direction. a first engaging portion that faces the side and moves the top plate switching mechanism from the locked state to the unlocked state as the top plate switching mechanism moves toward the first side in the first direction; and a second side in the first direction. and a second engaging portion that moves the travel portion switching mechanism from the first holding state to the second holding state as the traveling portion switching mechanism moves toward the second side in the first direction. preferable.
According to this aspect, when the partition member is operated, it is easy to operate the top plate switching mechanism and the travel section switching mechanism separately.

(4) In the fixture with a top plate according to the aspect (3) above, it is preferable that the first engaging part and the second engaging part are integrally formed.
According to this aspect, the configuration can be simplified and the number of parts can be reduced compared to the case where the first engaging part and the second engaging part are provided in separate members.

(5) In the fixture with a top plate according to any one of the aspects (2) to (4) above, the top plate switching mechanism may be configured to move the partition member toward the first side in the first direction. The travel section switching mechanism includes a top plate switching lever that moves from the locked state to the unlocked state, and the traveling part switching mechanism moves from the second holding state to the second holding state as the partition member moves toward the second side in the first direction. The partition member, the top plate switching lever, and the running section switching lever include a running section switching lever that transitions to a first holding state, and the partition member, the top plate switching lever, and the running section switching lever are supported by the bracket so as to be rotatable relative to each other about a second axis along the left-right direction. It is preferable that the
According to this aspect, the operating force required to operate the top plate switching lever and the running part switching lever via the partition member is smaller than, for example, when sliding the partition member, the top plate switching lever, and the running part switching lever. can do. Thereby, it is possible to further improve the operability.

(6) In the fixture with a top plate according to any of the aspects (2) to (5) above, the partition member is located on a side opposite to the second engaging part with respect to the first engaging part. It is preferable that an operating section for operating the partition member is connected to the portion.
According to this aspect, the operating force can be efficiently transmitted to the partition member.

According to each of the above aspects, it is possible to improve the design and to suppress interference with surrounding articles and the like.

FIG. 2 is a perspective view of the fixture with a top plate showing a state in which the top plate is in a use position. FIG. 2 is a perspective view, partially in cross section, of the fixture with a top plate showing a state where the top plate is in an unused position. FIG. 2 is a cross-sectional view taken along line III-III in FIG. 1 showing a state in which the caster unit is in a non-travelable position. FIG. 4 is a sectional view corresponding to FIG. 3 showing a state in which the caster unit is in a travelable position. It is a perspective view of the fixture with a top plate in a state where the top plate is removed. FIG. 3 is a cross-sectional view of the connection plate and its surroundings viewed from the outside in the left-right direction. It is a perspective view of the fixture with a top plate in a state where the top plate is removed. 7 is a cross-sectional view corresponding to line VIII-VIII in FIG. 6. FIG. 7 is a cross-sectional view taken along line IX-IX in FIG. 6. FIG. FIG. 3 is a view taken along the X arrow in FIG. 2 showing a state in which the top plate unit is in a use position. It is an explanatory diagram of the operation of the fixture with a top plate for explaining the batch switching mode. It is an explanatory diagram of the operation of the fixture with a top plate for explaining the batch switching mode. It is an explanatory diagram of the operation of the fixture with a top plate for explaining the batch switching mode. It is an explanatory diagram of the operation of the fixture with a top plate for explaining the batch switching mode. It is an explanatory diagram of the operation of the fixture with a top plate for explaining the batch switching mode. FIG. 3 is an explanatory diagram of the operation of the fixture with a top plate for explaining the independent switching mode.

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.

<Fixture with top plate 1>
FIG. 1 is a perspective view of the fixture 1 with a top plate showing a state in which the top plate 3 is in a use position Q1. FIG. 2 is a partially cutaway perspective view of the fixture 1 with a top plate showing a state in which the top plate 3 is in an unused position Q2.
A fixture with a top plate 1 shown in FIGS. 1 and 2 is a desk device installed in various facilities (for example, offices, halls, public facilities, etc.). The fixture 1 with a top plate is movable on the floor F via casters 2, and is of a so-called flap type that allows the posture of the top plate 3 to be changed depending on whether it is in use or not. 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 fixture 1 with a top plate includes a support structure 10, a top unit 11, and an actuation mechanism 12.
<Support structure 10>
The support structure 10 is installed on the floor surface F. The support structure 10 includes a pair of leg units 15 that are spaced apart from each other in the left-right direction, and a connecting portion 16 that connects the pair of leg units 15 to each other. Each leg unit 15 has a symmetrical configuration. Therefore, in the following description, the configuration of the leg unit 15 will be explained using one leg unit 15 as an example.

<Leg unit 15>
FIG. 3 is a sectional view taken along the line III--III in FIG. 1 showing a state in which the caster unit 15c is in a non-travelable state P1. FIG. 4 is a sectional view corresponding to FIG. 3 showing a state in which the caster unit 15c is in a travelable state P2.
As shown in FIGS. 3 and 4, the leg unit 15 includes a leg body 15a, an adjuster 15b, and a caster unit (traveling section) 15c.

The leg body 15a is formed in an L-shape when viewed from the left and right directions (side view). Specifically, the leg body 15a includes a base leg 21 and a pedestal 22.
The base leg 21 is formed into a box shape that extends in the front-rear direction and opens downward. A through hole 21 a that vertically penetrates the top wall of the base leg 21 is formed at the rear end of the base leg 21 . A grounding portion 23 projects downward from the base leg 21 at the rear end portion of the base leg 21 .

The pedestal 22 is formed into a rectangular tube shape. The pedestal 22 extends upward from the rear end of the base leg 21. In the illustrated example, the pedestal 22 gradually extends forward as it goes upward. The inside of the pedestal 22 communicates with the inside of the base leg 21 through the through hole 21a. In this embodiment, a reinforcing member 24 is provided at the connection portion between the pedestal 22 and the base leg 21. The reinforcing member 24 is formed into a box shape that opens downward. The reinforcing member 24 penetrates the lower end of the pedestal 22 from the front, so that its rear end enters into the pedestal 22. Note that the reinforcing member 24 is not an essential component.

The adjuster 15b is attached to the front end of the base leg 21 via an adjuster stay 21b. The adjuster 15b is configured to be movable in the vertical direction relative to the base leg 21.

The caster unit 15c is housed within the base leg 21 so as to be vertically movable. The caster unit 15c includes caster stays 26 and casters 2. The caster stay 26 extends inside the base leg 21 in the front-rear direction. The casters 2 are provided at both ends of the caster stay 26 in the front-rear direction.

The caster unit 15c shifts between a non-travelable state P1 and a movable state P2 by the operation of the actuating mechanism 12. The unruntable state P1 is a state in which the casters 2 are separated from the floor surface F because the lower ends of the casters 2 are located above the ground contact portion 23 and the adjuster 15b. That is, when the caster unit 15c is in the non-travelable state P1, the fixture 1 with a top plate is grounded on the floor F via the grounding portion 23 and the adjuster 15b. On the other hand, the runnable state P2 is a state in which each caster 2 is in contact with the floor F by protruding below the grounding portion 23 and the adjuster 15b. That is, the fixture 1 with a top plate is movable on the floor surface F via the casters 2 when the caster unit 15c is in the movable state P2. The following description will be made based on a state in which the caster unit 15c is in the non-travelable state P1.

<Connection part 16>
FIG. 5 is a perspective view of the fixture 1 with a top plate with the top plate 3 removed.
As shown in FIG. 5, the connecting portion 16 includes a connecting plate 31, a connecting beam 32, and a positioning member 33.
The connection plate 31 is formed into a plate shape whose thickness direction is in the left-right direction. The connection plate 31 is provided corresponding to each pillar 22 . Specifically, the lower part of the connection plate 31 is fixed to the inner wall portion of each pillar 22 located on the inner side in the left-right direction from the inside in the left-right direction with bolts or the like. That is, the connection plate 31 is fixed to the pedestal 22 with its upper portion protruding upward from the pedestal 22. In the illustrated example, the upper part of the connecting plate 31 is larger than the dimension of the pillar 22 in the front-rear direction when viewed from the side.

FIG. 6 is a cross-sectional view of the vicinity of the connection plate 31 viewed from the outside in the left-right direction.
As shown in FIG. 6, a rotation restricting portion 31a and a return restricting portion 31b are formed in an upper portion of the connecting plate 31 located toward the front. The rotation regulating portion 31a protrudes outward from the connection plate 31 in the left-right direction. The rotation regulating portion 31a is formed into a rectangular shape when viewed from the side. The return regulating portion 31b protrudes outward in the left-right direction from a portion of the connecting plate 31 located above the rotation regulating portion 31a. The return regulating portion 31b is formed in a circular shape when viewed from the side.
A receiving portion 31c is formed in a portion of the connecting plate 31 located above the return regulating portion 31b. The receiving portion 31c is a recessed portion that opens on the upper edge of the connecting plate 31.

FIG. 7 is a perspective view of the fixture 1 with a top plate with the top plate 3 removed.
As shown in FIG. 7, the connecting beam 32 connects the upper parts of the connecting plates 31 provided on each pillar 22. The connecting beam 32 is fixed by welding or the like to a portion of the upper portion of the connecting plate 31 located rearward of the receiving portion 31c.
The positioning member 33 is fixed to a portion of the connecting beam 32 located inside the connecting plate 31 in the left-right direction with a gap between the positioning member 33 and the connecting plate 31 . The positioning member 33 includes a surrounding portion 33a that surrounds the connecting beam 32, and a protrusion portion 33b that projects upward from the surrounding portion 33a. The surrounding portion 33a extends around the connecting beam 32. A first hook portion 33c is formed on the inner peripheral edge of the surrounding portion 33a. The first hook portion 33c protrudes outward in the left-right direction from the surrounding portion 33a, and then extends in a direction away from the axis O1. In the present embodiment, a pair of first hook portions 33c are formed at positions facing each other with the axis O1 in between.

The protruding portion 33b protrudes higher than the connecting plate 31. The upper surface of the protrusion 33b approaches or abuts the top plate 3 from below. A second hook portion 33d is formed in a portion of the protruding portion 33b located on the inner side in the left-right direction. The second hook portion 33d protrudes from the protrusion portion 33b on both sides in the front-rear direction.

<Top plate unit 11>
As shown in FIGS. 1 and 2, the top plate unit 11 is supported by the support structure 10 from below. The top plate unit 11 includes a top plate 3 and a bracket 41.
The top plate 3 is formed into a rectangular shape whose longitudinal direction is the left and right direction when viewed from the top and bottom (in plan view). The horizontal dimension of the top plate 3 is larger than the horizontal dimension of the support structure 10. In the following description, the working surface 3a of the top plate 3 will be described with reference to the state in which it faces upward (usage position Q1).

The brackets 41 are fixed to both ends of the lower surface of the top plate 3 in the left and right direction. Each bracket 41 has a symmetrical configuration. Therefore, in the following description, the configuration of the bracket 41 will be explained using one bracket 41 as an example.

FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. FIG. 9 is a cross-sectional view taken along line IX-IX in FIG.
As shown in FIGS. 7 to 9, the bracket 41 is formed into a U-shape that opens downward when viewed from the front. Specifically, the bracket 41 includes a top wall portion 41a, an inner wall portion 41b, and an outer wall portion 41c.
The top wall portion 41a is fixed to the lower surface of the top plate 3 at a position overlapping the upper end portion of the pillar 22 in plan view. The top wall portion 41a extends in the front-rear direction with the vertical direction as the thickness direction.
The inner wall portion 41b extends downward from the inner end edge of the top wall portion 41a in the left-right direction. In side view, the inner wall portion 41b is formed into a trapezoidal shape whose dimension in the front-rear direction decreases as it goes downward.

As shown in FIGS. 7 and 9, the bracket 41 is formed with an accommodation opening 41d spanning between the top wall portion 41a and the inner wall portion 41b. The accommodation opening 41d is formed by an upper opening 41d1 penetrating the top wall portion 41a and a side opening 41d2 penetrating the inner wall portion 41b that communicate with each other. The dimension of the upper opening 41d1 in the front-rear direction is larger than the dimension of the connection plate 31 in the front-rear direction. The longitudinal dimension of the side opening 41d2 is larger than the outer diameter of the connecting beam 32.

The above-mentioned connecting portion 16 is assembled to the pedestal 22 with the bracket 41 interposed therebetween. Specifically, the connection plate 31 is fixed to the pillar 22 while being inserted into the bracket 41 through the upper opening 41d1. Thereby, the connection plate 31 is in contact with the inner wall portion 41b from the outside in the left-right direction with respect to the inner wall portion 41b. The positioning member 33 is fitted into the side opening 41d2. Specifically, the positioning member 33 restricts the rotation of the connecting portion 16 about the axis O1 with respect to the bracket 41 by bringing the outer circumferential surfaces of the surrounding portion 33a and the protruding portion 33b into contact with the inner circumferential surface of the side opening 41d2. There is. Further, in a state where the positioning member 33 is fitted into the side opening 41d2, the first hook portion 33c engages with the opening edge of the side opening 41d2 from the outside in the left-right direction. On the other hand, the second hook portion 33d engages with the opening edge of the side opening 41d2 from inside in the left-right direction. Thereby, the positioning member 33 restricts movement of the connecting portion 16 with respect to the bracket 41 in the left-right direction by engaging the hook portions 33c and 33d with the inner wall portion 41b from both sides in the left-right direction.

Note that after the support structure 10 and the bracket 41 are assembled, the top plate 3 is placed above the bracket 41. At this time, the lower surface of the top plate 3 approaches or contacts the upper end surface of the protrusion 33b from above. As a result, upward movement of the connecting portion 16 with respect to the bracket 41 is restricted by the top plate 3.

The outer wall portion 41c extends downward from the outer edge of the top wall portion 41a in the left-right direction. The outer wall portion 41c is formed into a trapezoidal shape in which the dimension in the front-rear direction decreases as it goes downward in a side view. The outer wall portion 41c is connected to the connection plate 31 via a connection shaft 45. The connecting shaft 45 is, for example, a bolt 45a and a nut 45b. The bolt 45a passes through the outer wall portion 41c and the connection plate 31 in the left-right direction, and is then fastened to a nut 45b fixed to the connection plate 31. The bolt 45a is rotatably supported by the outer wall portion 41c. Thereby, the top plate unit 11 is rotatably supported by the support structure 10 around the axis O1 of the bolt 45a along the left-right direction. Specifically, the top unit 11 has two positions: a working position Q1 (see FIG. 1) in which the work surface 3a of the top board 3 faces upward, and a non-use position Q1 (see FIG. 1) in which the work surface 3a of the top board 3 faces backward (one side in the front-rear direction). It rotates around the axis O1 between the use position Q2 (see FIG. 2). In addition, when defining the use position Q1 and the non-use position Q2, it is sufficient to specify that the component in the front-rear direction of the normal direction of the work surface 3a at the non-use position Q2 is larger than that at the use position Q1. . In this embodiment, the top plate 3 at the use position Q1 is arranged with the work surface 3a parallel to the floor surface F. On the other hand, the top plate 3 at the unused position Q2 is arranged with the work surface 3a intersecting the floor surface F at an acute angle.

<Operating mechanism 12>
As shown in FIG. 5, the actuation mechanism 12 performs an operation to change the posture of the top plate unit 11 (hereinafter referred to as a flap operation) and an up and down operation of the caster unit 15c (hereinafter referred to as a caster switching operation). The actuation mechanism 12 includes an interlocking shaft 51, a pair of actuation modules 52, and an operating section 54.

As shown in FIG. 1, the interlocking shaft 51 extends in the left-right direction in front of the connecting beam 32 (on the other side in the front-rear direction). The interlocking shaft 51 is supported between the pair of brackets 41 so as to be rotatable around an axis O2 parallel to the axis O1. As shown in FIG. 8, both end portions of the interlocking shaft 51 in the left-right direction pass through the bracket 41 in the left-right direction through the inner wall portion 41b and outer wall portion 41c of the corresponding bracket 41, respectively. A portion of the interlocking shaft 51 located inside the bracket 41 passes through the receiving portion 31c of the corresponding connection plate 31.

As shown in FIG. 5, the actuation module 52 is provided corresponding to each leg 15a. A pair of actuation modules 52 are provided corresponding to each leg 15a. In the following description, the configuration of the actuation module 52 will be explained using one of the actuation modules 52 as an example.

The actuation module 52 includes a linkage lever (linkage mechanism) 61, a top plate switching lever (top plate switching mechanism) 62, and a caster drive unit 63.
As shown in FIGS. 5 and 6, the linkage lever 61 is formed into a plate shape whose thickness direction is in the left-right direction. The linkage lever 61 is configured to be rotatable together with the linkage shaft 51 within the bracket 41 . That is, the link lever 61 is rotatably supported by the top plate unit 11 via the link shaft 51.

The linkage lever 61 includes a linkage base portion 61a, a first transmission portion 61b, and a second transmission portion 61c.
The linkage base portion 61a extends downward toward the front in a side view. An interlocking shaft 51 is fixed to the rear end (upper end) of the interlocking base portion 61a. On the other hand, a connected portion 61a1 is formed at the front end (lower end) of the linkage base portion 61a. The connected portion 61a1 is, for example, a through hole that penetrates the link base portion 61a in the left-right direction.

The first transmission portion (first engagement portion) 61b is formed at the center portion of the linkage base portion 61a in the front-rear direction. The first transmission portion 61b is, for example, a recess that passes through the linkage base portion 61a in the left-right direction and opens on the upper end surface of the linkage base portion 61a. The first transmission portion 61b opens along the tangential direction of a virtual circle passing through the axis O2 when viewed from the side. Therefore, the bottom surface of the first transmission section 61b faces the first side around the axis O2.
The second transmission portion 61c is formed in a portion of the linkage base portion 61a that is located rearward than the first transmission portion 61b. The second transmission portion 61c bulges outward and downward in the left-right direction with respect to the linkage base portion 61a. Of the second transmission portion 61c, the rearward facing surface constitutes a transition engagement surface (second engaging portion) 61c1, and the upward facing surface constitutes a return engagement surface 61c2. The transition engagement surface 61c1 is spaced apart from the bottom surface of the first transmission portion 61b in the circumferential direction around the axis O2, and faces the second side around the axis O2.

The link lever 61 rotates together with the link shaft 51 around the axis O2 by transmitting the operation of the operating part 54 to the connected part 61a1. In this embodiment, the linkage lever 61 is configured to be rotatable on both sides (both sides in the front and back direction) around the axis O2 with respect to the reference position R1, with the position in which no operating force is applied to it as a reference position R1. ing.

As shown in FIG. 6, the top plate switching lever 62 is arranged inside the link lever 61 in the left-right direction within the bracket 41. The top plate switching lever 62 is spaced apart from the inner wall portion 41b in the left-right direction. In a side view, a portion of the top plate switching lever 62 overlaps with the linking lever 61. The top plate switching lever 62 is formed in a C-shape that opens rearward when viewed from the side. The top plate switching lever 62 includes a lever main body 62a, an engaging claw 62b, and an engaging protrusion 62c.

The interlocking shaft 51 passes through the upper end of the lever body 62a. The top plate switching lever 62 is rotatably supported by the interlocking shaft 51 about the axis O2. That is, the top plate switching lever 62 and the linking lever 61 are configured to be relatively rotatable around the axis O2. Further, the top plate switching lever 62 is rotatably supported by the top plate unit 11 (bracket 41) and the link lever 61 via the link shaft 51.

The engaging claw 62b projects rearward from the lower end of the lever body 62a. The engagement claw 62b moves between the locked state S1 and the unlocked state S2 as the top plate switching lever 62 rotates about the axis O2. When the linking lever 61 is in the reference position R1 and the top plate switching lever 62 is in the locked state S1, the engaging claw 62b is engaged with the rotation restricting portion 31a from below. The engaging claw 62b restricts the rotation of the top plate unit 11 relative to the support structure 10 to the non-use position Q2 (see FIG. 2) by engaging with the rotation restricting portion 31a. On the other hand, as shown in FIG. 15, when the top plate unit 11 is in the non-use position Q2, the engaging claw 62b moves to the locked state S1 and engages (butts into) the return regulating portion 31b from above. . Thereby, the engaging claw 62b restricts the rotation of the top plate switching lever 62 from the non-use position Q2 to the use position Q1. Further, as shown in FIG. 14, when the engaging claw 62b is in the unlocked state S2, the engaging claw 62b is retracted to a position (forward) where it does not overlap the rotation regulating portion 31a in a plan view, thereby collapsing the rotation regulating portion 31a. is disengaged. This allows rotation of the top plate unit 11 relative to the support structure 10 to the non-use position Q2.

The engagement protrusion 62c is located at the center of the lever body 62a in the vertical direction, and protrudes outward in the left-right direction from the front portion. The engagement protrusion 62c can be engaged with the first transmission section 61b by being accommodated within the first transmission section 61b. When the top plate switching lever 62 is in the locked state S1, the engagement protrusion 62c is connected to the engagement protrusion 62c via the first transmission portion 61b in the process of the linkage lever 61 rotating from the reference position R1 to the first side (forward) around the axis O2. is pushed into the first side around the axis O2, thereby rotating together with the linking lever 61. Thereby, the top plate switching lever 62 moves from the locked state S1 to the unlocked state S2. On the other hand, when the top plate switching lever 62 is in the locked state S1, the first transmission portion 61b and the engagement protrusion 62c are connected to each other in the process in which the linkage lever 61 rotates from the reference position R1 to the second side (rearward) around the axis O2. The engagement is released and the stationary state is maintained in the locked state S1. Note that a lever biasing member (not shown) that biases the top plate switching lever 62 toward the locked state S1 is provided between the top plate switching lever 62 and the top plate unit 11 (for example, the top wall portion 41a). Intervening.

FIG. 10 is a view taken along the X arrow in FIG. 2, showing a state in which the top plate unit 11 is in the use position Q1.
As shown in FIGS. 5 and 10, the caster drive unit 63 connects the link lever 61 and the caster unit 15c. The caster drive unit 63 moves the caster unit 15c between the non-travelable state P1 and the movable state P2 as the linkage lever 61 rotates. Specifically, the caster drive unit 63 includes a caster switching lever (traveling section switching mechanism) 71 and a caster link 72 (see FIG. 3).

The caster switching lever 71 is disposed inside the bracket 41 on the outer side in the left-right direction with respect to the linking lever 61. The caster switching lever 71 is spaced apart from the outer wall portion 41c in the left-right direction. That is, the caster switching lever 71 and the top plate switching lever 62 are surrounded by the inner wall portion 41b and outer wall portion 41c of the bracket 41 from both sides in the left-right direction, and are arranged separately on both sides in the left-right direction with respect to the linkage lever 61. has been done.

The caster switching lever 71 is formed in an L-shape when viewed from the side. Specifically, the caster switching lever 71 includes a transition guide portion 71a, a return guide portion 71b, and a connecting pin 71c.

The transition guide portion 71a extends in the vertical direction with the left-right direction as the thickness direction. The interlocking shaft 51 passes through the upper end of the transition guide portion 71a. The caster switching lever 71 is rotatably supported by the interlocking shaft 51 about the axis O2. That is, the caster switching lever 71 and the linkage lever 61 are configured to be relatively rotatable around the axis O2. Further, the caster switching lever 71 is rotatably supported by the top plate unit 11 (bracket 41) and the link lever 61 via the link shaft 51. As described above, in the present embodiment, the caster switching lever 71 and the top plate switching lever 62 are connected to the bracket 41 and the linking lever via the linking shaft 51 while being spaced apart in the left-right direction with respect to the inner wall 41b and the outer wall 41c. It is supported by 61. Note that the transition guide portion 71a engages (contacts) the transition engagement surface 61c1 from the rear.

The return guiding portion 71b extends forward from the upper end of the transition guiding portion 71a. The return guide portion 71b approaches or contacts the return engagement surface 61c2 from above. In the batch switching mode described later, the return guiding portion 71b comes into contact with the return engagement surface 61c2 from above during the process in which the linkage lever 61 rotates from the reference position R1 to the first side (forward) about the axis O2. Rotation of the caster switching lever 71 to the second side (rearward) about the axis O2 with respect to the linkage lever 61 is restricted.
The connecting pin 71c protrudes outward in the left-right direction from the lower end of the transition guiding portion 71a.

In the caster switching lever 71, in the process of the linkage lever 61 rotating from the reference position R1 to the second side (rearward) around the axis O2, the transition guide portion 71a is activated via the second transmission portion 61c (transition engagement surface 61c1). By being pushed backward, it rotates together with the linking lever 61 (see FIG. 16). Thereby, the caster switching lever 71 rotates (rotates) to the second side about the axis O2 so that the connecting pin 71c is pushed upward. Specifically, the caster switching lever 71 has a first holding state T1 (see FIG. 10) in which the caster unit 15c is held in the non-travelable state P1, and a second holding state T2 (see FIG. 10) in which the caster unit 15c is held in the non-travelable state P2. (see FIG. 16). In the first holding state T1, the caster switching lever 71 is engaged with the linking lever 61 at the reference position R1 from the rear. In this state, the caster switching lever 71 restricts the lowering of the caster unit 15c with respect to the leg body 15a via the caster link 72. On the other hand, in the second holding state T2, the caster switching lever 71 is pushed up toward the second side around the axis O2 by the linkage lever 61. In this state, the caster switching lever 71 restricts the rise of the caster unit 15c relative to the leg 15a via the caster link 72. Note that the caster switching lever 71 and the top plate switching lever 62 are configured to be movable on the same circumference (in the same direction) around the axis O2 by rotational movement of the linkage lever 61.

On the other hand, the caster switching lever 71 is configured such that the connecting pin 71c is pulled upward as the axis O2 moves around the axis O1 while the top plate unit 11 moves from the use position Q1 to the non-use position Q2. , it revolves around the axis O1 (see FIG. 13).

As shown in FIGS. 2 to 4, the caster link (elevating mechanism) 72 connects the caster switching lever 71 and the caster unit 15c, and transfers the driving force accompanying the movement of the caster switching lever 71 to the caster unit 15c. It is for communicating. The caster link 72 includes a connection bar 80, a rear link bar 81, and a front link bar 82.
The connection bar 80 connects the caster switching lever 71 and the rear link bar 81. The connecting bar 80 passes through the inside of the pillar 22 in the vertical direction. Specifically, the connection bar 80 extends linearly upward from the lower end, and then curves backward as the upper end goes upward. As shown in FIG. 10, the upper end of the connecting bar 80 is rotatably connected to the connecting pin 71c around an axis along the left-right direction. That is, the connection bar 80 moves up and down as the caster switching lever 71 rotates and revolves.

As shown in FIGS. 3 and 4, the rear link bar 81 is formed in a V-shape when viewed from the side. Specifically, the rear link bar 81 includes a central connecting portion 81a, a first connecting portion 81b, and a second connecting portion 81c. The central connecting portion 81a is rotatably connected to the rear end portion of the reinforcing member 24 about an axis along the left-right direction. The first connecting portion 81b extends rearward from the central connecting portion 81a. The first connecting portion 81b is rotatably connected to the lower end of the connecting bar 80 within the pillar 22 around an axis along the left-right direction. The second connecting portion 81c extends forward from the central connecting portion 81a. The second connecting portion 81c is rotatably connected to the rear end portion of the caster stay 26 about an axis along the left-right direction. That is, as the connection bar 80 moves up and down, the rear link bar 81 rotates from the center connection part 81a as a starting point by applying an operating force in the vertical direction via the first connection part 81b. As a result, the rear link bar 81 rotates so that the second connecting portion 81c moves downward as the connecting bar 80 moves upward, and as the connecting bar 80 moves downward, the second connecting portion 81c moves upward. Rotate to move.

The front link bar 82 is rotatably connected to the base leg 21 and the caster stay 26 at a front end within the base leg 21 . The front link bar 82 extends linearly with the left-right direction as the thickness direction. A first end of the front link bar 82 is rotatably connected to a support portion 21c provided on the base leg 21 about an axis along the left-right direction. The second end of the front link bar 82 is rotatably connected to the caster stay 26 about an axis along the left-right direction. The front link bar 82 rotates with respect to the base leg 21 and the caster stay 26 as the caster stay 26 moves up and down with the rotation of the rear link bar 81, so that the front end of the caster stay 26 with respect to the base leg 21 is rotated. move the part up and down. Note that the caster unit 15c is biased to a non-travelable state P1 by a caster biasing member (not shown) provided between the caster stay 26 and the base leg 21.

As shown in FIG. 6, the operating portion 54 is connected to a connected portion 61a1 of a link lever 61 that constitutes the right-hand actuation module 52, for example. The operating section 54 is formed into a plate shape whose thickness direction is in the left-right direction. The operating portion 54 extends upward from the connected portion 61a1 toward the front, and then extends forward along the lower surface of the top plate 3. The front end portion of the operating portion 54 is located further back than the front end surface of the top plate 3. Note that the operation section 54 may be provided in each operation module 52. Further, the operating portion 54 may extend from the connected portion 61a1 to both sides in the front and back direction so that it can be operated from both the front and rear sides of the fixture with a top plate 1. Further, the operating portion 54 may be operated indirectly via an operating lever provided on the lower surface of the top plate 3 or the like.

<How to use fixture with top plate 1>
Next, how to use the fixture with a top plate 1 will be explained. The fixture 1 with a top plate of the present embodiment is capable of performing a caster switching operation regardless of the presence or absence of a flap operation. In the following description, there will be a batch switching mode in which the caster switching operation is performed when the top unit 11 is moved to the non-use position Q2, and an individual switching mode in which the caster switching operation is performed while the top unit 11 is in the usage position Q1. I will explain about it. Further, in the following description, a state in which the top plate unit 11 is in the use position Q1 and the caster unit 15c is in the non-travelable state P1 will be described as an initial state.

11 to 15 are explanatory diagrams of the operation of the fixture with a top plate 1 for explaining the batch switching mode, and FIGS. 11 to 13 are diagrams corresponding to FIG. 10, and FIGS. 14 and 15 are diagrams corresponding to FIG. 6 is a diagram corresponding to FIG.
First, the batch switching mode will be explained. When the top-equipped fixture 1 is in the initial position, as shown in FIGS. 10 and 11, when the operating part 54 is pulled forward (see arrow F1), the link lever 61 moves from the reference position R1 to the first position around the axis O2. Rotate to the side. Then, as shown in FIGS. 6 and 13, the engagement protrusion 62c is pushed to the first side around the axis O2 via the first transmission part 61b, so that the top plate switching lever 62 moves along the axis O2 together with the linking lever 61. Rotate to the first side of the rotation. At this time, the return engagement surface 61c2 of the linkage lever 61 is in contact with the return guiding portion 71b of the caster switching lever 71 from below. Note that as the linkage lever 61 in one of the actuation modules 52 rotates, the linkage shaft 51 also rotates in the first direction around the axis O2. As a result, the rotational movement of the link lever 61 in one of the actuation modules 52 is transmitted to the link lever 61 in the other actuation module 52 via the interlocking shaft 51, so that the pair of actuation modules 52 operate synchronously.

As shown in FIGS. 11 and 14, when the top plate switching lever 62 rotates in the first direction around the axis O2 against the biasing force of the lever biasing member, the top plate switching lever 62 is unlocked from the locked state S1. By shifting to state S2, the engagement between the engagement claw 62b and the rotation restriction portion 31a is released. This allows rotation of the top plate unit 11 about the axis O1 with respect to the support structure 10.

After the top board switching lever 62 shifts to the unlocked state S2, the top board unit 11 is moved toward the non-use position Q2. Specifically, as shown in FIG. 12, the front end of the top plate 3 is pushed up while pulling the operation part 54 (while keeping the linking lever 61 rotated to the first side about the axis O2). Then, the top plate unit 11 rotates around the axis O1. As a result, after the interlocking shaft 51 comes out of the receiving portion 31c, the top plate unit 11 moves to the non-use position Q2.

In the process of the top plate unit 11 shifting from the use position Q1 to the non-use position Q2, the axis O2 revolves upward around the axis O1. As a result, the link lever 61, the top plate switching lever 62, and the caster switching lever 71 revolve around the axis O1. As the caster switching lever 71 revolves around the axis O1, the caster switching lever 71 moves upward. Then, the connecting bar 80 is pulled up via the connecting pin 71c. At this time, the return guide portion 71b is in contact with the return engagement surface 61c2 from above, thereby restricting rotation of the caster switching lever 71 relative to the link lever 61 to the second side (rearward) about the axis O2. There is.

As shown in FIGS. 3 and 4, when the first connecting portion 81b is pulled up as the connecting bar 80 moves upward, the rear link bar 81 rotates with the central connecting portion 81a as a starting point. As a result, the second connecting portion 81c moves downward, and the rear end portion of the caster unit 15c is pushed down via the caster stay 26. Furthermore, as the caster stay 26 moves downward, the front link bar 82 rotates so that the second end of the front link bar 82 faces downward, thereby also pushing down the front end of the caster unit 15c. As a result, the caster unit 15c moves to the runnable state P2 against the biasing force of the caster biasing member. That is, in the fixture 1 with a top plate of this embodiment, as the top unit 11 moves from the use position Q1 to the non-use position Q2, the caster unit 15c moves from the non-travelable state P1 to the driveable state P2. It has become.

As shown in FIGS. 13 and 15, after the caster unit 15c transitions to the runnable state P2, the operating force applied to the operating portion 54 is released. For example, a biasing force of a lever biasing member acts on the linkage lever 61 via a top plate switching lever 62. Therefore, the linkage lever 61 and the top plate switching lever 62 rotate together to the second side about the axis O2. As a result, the linkage lever 61 returns to the reference position R1, and the top plate switching lever 62 returns to the locked state S1. When the top plate switching lever 62 returns to the locked state S1 with the top plate unit 11 in the non-use position Q2, the engaging claw 62b engages with the return regulating portion 31b from above. This restricts the rotation of the top plate unit 11 relative to the support structure 10 to the non-use position Q2.

By using the batch switching mode, the fixture 1 with a top plate can be moved on the floor F with the top unit 11 flipped up to the non-use position Q2. In this case, among the fixtures 1 with top plates that are adjacent to each other in the front-rear direction, the leg units 15 can be arranged in a nested manner, and the top-plate units 11 can be stored in a stacked state in the front-rear direction (so-called nesting storage). , storage space can be reduced.

In addition, when returning the fixture 1 with a top plate to the initial position, the operation is performed in the opposite manner to the case described above. That is, the link lever 61 is rotated to the first side about the axis O2 via the operation part 54, and the top plate unit 11 is rotated about the axis O1 with the top plate switching lever 62 shifted to the unlocked state S2. Rotate. Thereby, the top plate unit 11 returns to the use position Q1. In the process of the top plate unit 11 moving to the use position Q1, the linkage lever 61, the top plate switching lever 62, and the caster switching lever 71 revolve downward around the axis O1. As a result, the caster switching lever 71 moves downward, and the caster unit 15c is pulled up via the caster link 72 from the driveable state P2 to the driveable state P1. As a result, the fixture 1 with a top plate is grounded to the floor surface F via the grounding portion 23 and the adjuster 15b.

FIG. 16 is an operation explanatory diagram for explaining the independent switching mode, and corresponds to FIG. 10.
Next, the independent switching mode will be explained. As shown in FIGS. 10 and 16, when the operating portion 54 is pushed rearward (see arrow F2), the linkage lever 61 rotates from the reference position R1 to the second side around the axis O2. Then, the transition guide portion 71a is pushed in through the transition engagement surface 61c1, so that the caster switching lever 71 rotates (rotates) together with the link lever 61 to the second side about the axis O2. As a result, the caster switching lever 71 shifts from the first holding state T1 to the second holding state T2.

In the process of shifting the caster switching lever 71 to the second holding state T2, the connecting bar 80 is pulled up via the connecting pin 71c. Then, as shown in FIGS. 3 and 4, the caster link 72 lowers the caster unit 15c, and the caster unit 15c shifts from the non-travelable state P1 to the movable state P2. That is, in the independent switching mode, the caster unit 15c shifts from the non-travelable state P1 to the movable state P2 while the top plate unit 11 remains in the use position Q1.

In the independent switching mode, the top unit 11 can be moved on the floor F while being maintained at the use position Q1. Therefore, when it is desired to finely adjust the position of the fixture 1 with a top plate, this can be done without flipping up the top unit 11.

In the independent switching mode, in order to return the fixture with top plate 1 to the initial position (the caster unit 15c is in the non-travelable state P1 again), for example, the operating portion 54 is pulled in. Then, the linkage lever 61 rotates toward the first side around the axis O2, thereby returning the linkage lever 61 to the reference position R1. Further, as the linkage lever 61 rotates to the reference position R1, the transition engagement surface 61c1 separates from the transition guide portion 71a. Then, the caster unit 15c rises from the travelable state P2 to the non-travelable state P1 due to the biasing force of the caster biasing member. As a result, the connecting bar 80 is pulled down, and the caster switching lever 71 rotates to the first side about the axis O2 so as to follow the linking lever 61. Note that in order to return the caster unit 15c to the non-travelable state P1 again, the return engagement surface 61c2 pushes the return guide portion 71b toward the first side around the axis O2 as the linkage lever 61 rotates to the reference position R1. As a result, the caster switching lever 71 may be rotated to the first side about the axis O2 in conjunction with the linking lever 61, and the linking bar 80 may be pushed down via the linking pin 71c.

As described above, in this embodiment, the top plate switching lever 62 is arranged on one side in the left-right direction with respect to the linking member (partition member) 61, and the caster switching lever 71 is arranged on the other side in the left-right direction with respect to the linking member 61. The configuration was such that the
According to this configuration, since the top plate switching lever 62 and the caster switching lever 71 are distributed and arranged on both sides in the left-right direction with respect to the linking member 61, the top plate switching lever 62 and the caster switching lever 71 move. At this time, movement of one member can be prevented from being obstructed by the other member. Moreover, since the top plate switching lever 62 and the caster switching lever 71 are arranged apart from the bracket 41 (inner wall portion 41b and outer wall portion 41c) in the left and right direction, the dimensional accuracy of the bracket 41 and the top plate 3 is reduced. The relative positions of the top plate switching lever 62 and the caster switching lever 71 can be stabilized regardless of the warpage or the like. Thereby, operational reliability of the top plate switching lever 62 and the caster switching lever 71 can be ensured.

In particular, in this embodiment, the bracket 41 that connects the top plate 3 and the support structure 10 has an inner wall portion (one side wall portion) 41b disposed on one side in the left-right direction with respect to the top plate switching lever 62; The caster switching lever 71 is configured to include an outer wall portion (the other side wall portion) 41c disposed on the other side in the left-right direction.
According to this configuration, the top plate switching lever 62 and the caster switching lever 71 are surrounded by the inner wall portion 41b and the outer wall portion 41c of the bracket 41 from both sides in the left-right direction. Therefore, the design quality can be improved. Moreover, it becomes difficult for articles etc. to enter around the top plate switching lever 62 and the caster switching lever 71. Therefore, it is possible to prevent the top plate switching lever 62 and the caster switching lever 71 from interfering with surrounding articles and preventing the operations of the top plate switching lever 62 and the caster switching lever 71 from being obstructed by the articles.

In this embodiment, the linking member 61 is movably supported by the bracket 41 in the direction around the axis O2 (first direction), and the first transmitting portion 61b and the second transmitting portion 61c (transition engagement surface 61c1) are connected to each other. are spaced apart around the axis O2, and are configured to face oppositely to each other.
According to this configuration, when the linking member 61 is operated, the top plate switching lever 62 and the caster switching lever 71 can be easily operated separately.

In this embodiment, the first transmission portion 61b and the transition engagement surface 61c1 are integrally formed as the linking member 61.
According to this configuration, the configuration can be simplified and the number of parts can be reduced compared to the case where the first transmission portion and the transition engagement surface are provided as separate members.

In this embodiment, the linking member 61, the top plate switching lever 62, and the caster switching lever 71 are supported by the top unit 11 so as to be relatively rotatable around the axis O2.
According to this configuration, when operating the top plate switching lever 62 and the caster switching lever 71 via the linking member 61, compared to the case where the linking member 61, the top plate switching lever 62, and the caster switching lever 71 are slid, for example, The operating force can be reduced. Thereby, it is possible to further improve the operability.

In the present embodiment, an operating part 54 for operating the linking member 61 is connected to a portion of the linking member 61 located on the opposite side of the transition engagement surface 61c1 with respect to the first transmission part 61b. .
With this configuration, the operating force can be efficiently transmitted to the linking member 61.

In this embodiment, the caster switching lever 71 and the top plate switching lever 62 are supported by the bracket 41 and the linking lever 61 via the linking shaft 51.
According to this configuration, post-processing of the bracket 41 can be reduced compared to a configuration in which the caster switching lever 71 and the top plate switching lever 62 are supported separately by the bracket 41. This makes it possible to reduce manufacturing costs. Further, as compared to the case where support holes for the caster switching lever 71 and the top plate switching lever 62 are separately formed as post-processing on the bracket 41, a decrease in strength of the bracket 41 can be suppressed.

(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 caster unit 15c is moved up and down by the caster drive unit 63 to move between the non-travelable state P1 and the movable state P2, but the present invention is not limited to this configuration. The caster drive unit 63 may be configured to restrict or allow rotation of the caster 2 itself, for example, by using a brake, a gear lock, or the like. In this case, the fixture 1 with a top plate is always grounded to the floor F via the casters 2.

In the embodiment described above, a configuration has been described in which the caster unit 15c shifts between the non-travelable state P1 and the movable state P2 via the caster link 72 as the caster switching lever 71 rotates, but the present invention is not limited to this configuration. . The caster switching lever 71 may be configured to restrict or permit transition of the caster unit 15c between the non-travelable state P1 and the movable state P2. That is, when in the first holding state T1, the caster switching lever 71 holds the caster unit 15c in the travelable state P2, restricts the shift of the caster unit 15c to the non-travelable state P1, and switches the caster unit 15c to the non-travelable state P1. , the caster unit 15c may be held in the non-travelable state P1, and the transition of the caster unit 15c to the movable state P2 may be restricted. In this case, when the caster switching lever 71 moves from the first holding state T1 to the second holding state T2, the caster unit 15c may be manually operated to the non-travelable state P1, or the caster switching lever 71 moves to the second holding state T2. The configuration may also be such that when the vehicle shifts from the state to the first holding state T1, the caster unit 15c is manually operated to the travelable state P2.

In the above-described embodiment, a case has been described in which each of the linkage mechanism, the top plate switching mechanism, and the travel section switching mechanism is configured with a lever as an example, but the structure is not limited to this. The interlocking mechanism, the top plate switching mechanism, and the traveling section switching mechanism may each be composed of a plurality of members such as cams and links.
In the above-described embodiment, a case has been described in which a desk is used as an example of the fixture 1 with a top plate according to the present invention, but the structure is not limited to this. The fixture with a top plate according to the present invention can be employed in various fixtures having a top plate, such as shelves and cart devices.
In the above-described embodiment, the configuration in which the fixture with a top plate 1 includes the pair of leg units 15 has been described, but the configuration is not limited to this. The number of leg units 15 may be one.

In the embodiment described above, a configuration has been described in which the top plate switching lever 62 and the caster drive unit 63 are actuated by the rotational movement of the linkage lever 61 about the axis O2, but the present invention is not limited to this configuration. For example, a configuration may be adopted in which the top plate switching lever 62 and the caster drive unit 63 operate as the linkage lever 61 slides.
In the embodiment described above, a configuration has been described in which the top plate switching lever 62 or the caster drive unit 63 is activated by moving the linkage lever 61 on the same circumference of the reference position R1, but the present invention is not limited to this configuration. The direction in which the top plate switching lever 62 operates with respect to the reference position R1 and the direction in which the caster drive unit 63 operates with respect to the reference position R1 may be in directions that intersect with each other.

In the embodiment described above, a configuration has been described in which the caster unit 15c shifts to the runnable state P2 as the top plate unit 11 moves to the non-use position Q2, but the present invention is not limited to this configuration. In the fixture 1 with a top plate according to the present invention, when the link lever 61 moves from the reference position R1 to the first side, the top plate unit 11 moves to the non-use position Q2, and the link lever 61 moves from the reference position R1 to the second side. Any configuration is sufficient as long as the caster unit 15c shifts to the runnable state P2 when moving to.

In the embodiment described above, the linking member 61 is used as an example of the partitioning member that partitions the top plate switching lever 62 and the caster switching lever 71, but the structure is not limited to this. The partition member may be configured to be immovable with respect to the bracket 41.
In the embodiment described above, the configuration in which the top plate switching lever 62 and the caster switching lever 71 are operated by movement of one linking member 61 has been described, but the present invention is not limited to this configuration. The top plate switching lever 62 and the caster switching lever 71 may be configured to be operated by separate operating mechanisms.
In the embodiment described above, a configuration has been described in which the top plate switching lever 62 and the caster switching lever 71 operate separately as the linking member 61 moves to both sides around the axis O2, but the present invention is not limited to this configuration. The top plate switching lever 62 and the caster switching lever 71 may be configured to operate as the linking member moves in one direction.
In the embodiment described above, the first transmission portion 61b as the first engagement portion and the transition engagement surface 61c1 as the second engagement portion are integrally formed in the linking member 61. It is not limited to this configuration. The first engaging portion and the second engaging portion may be formed as separate members.

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: Fixtures with top plate 3: Top plate 3a: Work surface 10: Support structure 11: Top plate unit 15a: Legs 15c: Caster unit (traveling part)
41b: Inner wall part (side wall part)
41c: Outer wall (side wall)
54: Operation unit 61: Linking member (partition member)
61b: First transmission part (first engagement part)
61c1: Transition engagement surface (second engagement part)
62: Top plate switching lever (top plate switching mechanism)
71: Caster switching lever (traveling part switching mechanism, traveling part switching lever)
O1: Axis line (first axis line)
O2: Axis line (second axis line)
P1: Undriveable state P2: Drivenable state Q1: Used position Q2: Unused position R1: Reference position S1: Locked state S2: Unlocked state T1: First held state T2: Second held state

Claims (6)

It has a running part that runs on a floor surface, and is switchable between a disabled state in which the running part cannot run on the floor surface, and a runnable state in which the running part can run on the floor surface. a support structure installed on the floor;
a top plate supported by the support structure, and a second position along the left-right direction between a use position where the work surface of the top plate faces upward and a non-use position where the work surface faces one side in the front-rear direction; a top plate unit rotatably supported by the support structure about one axis;
a partition member provided below the top plate unit;
a locked state in which the top plate unit is engaged with the support structure to restrict rotation about the first axis to the non-use position of the top plate unit relative to the support structure; and a locked state in which the engagement with the support structure is released. a top plate switching mechanism disposed on one side in the left-right direction with respect to the partition member so as to be movable between unlocked states that allow rotation of the top plate unit about the first axis with respect to the support structure;
disposed on the other side in the left-right direction with respect to the partition member so as to be movable between a first holding state in which the traveling portion is held in the travelable state and a second holding state in which the traveling portion is held in the non-travelable state. a traveling section switching mechanism;
The top plate unit includes a bracket that connects the top plate and the support structure and supports the partition member,
The bracket supports the partition member while being adjacent to the partition member in the left-right direction, and is spaced apart from the top plate switching mechanism and the traveling section switching mechanism in the left-right direction. A fixture with a top plate and side walls. The side wall portion is
one side wall portion spaced apart from the top plate switching mechanism on one side in the left-right direction;
The fixture with a top plate according to claim 1, further comprising: a second side wall portion spaced apart from the traveling portion switching mechanism on the other side in the left-right direction. The partition member is supported by the bracket so as to be movable in a first direction,
The partition member is
a first engaging portion that faces a first side in the first direction and moves the top plate switching mechanism from the locked state to the unlocked state as the top plate switching mechanism moves toward the first side in the first direction;
a second engaging part that faces a second side in the first direction and moves the running part switching mechanism from the first holding state to the second holding state as the traveling part switching mechanism moves toward the second side in the first direction; The fixture with a top plate according to claim 1 or 2, comprising: and. The fixture with a top plate according to claim 3, wherein the first engaging portion and the second engaging portion are integrally formed. The top plate switching mechanism includes a top plate switching lever that moves from the locked state to the unlocked state as the partition member moves to the first side in the first direction,
The traveling section switching mechanism includes a traveling section switching lever that transitions from the second holding state to the first holding state as the partition member moves to the second side in the first direction,
The fixture with a top plate according to claim 3, wherein the partition member, the top plate switching lever, and the traveling part switching lever are supported by the bracket so as to be relatively rotatable with respect to each other around a second axis along the left-right direction. 4. An operating section for operating the partitioning member is connected to a portion of the partitioning member located on the opposite side of the first engaging section from the second engaging section. Fixtures with top plate.

Images