Display fixture with tabletop

Abstract

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

Description

Technical Field

[0001] The present invention relates to a furniture with a top plate.

Background Art

[0002] As a furniture with a top plate, a configuration is known that includes a support structure having casters capable of traveling on a floor surface, and a top plate rotatably supported by the support structure between a use position where the work surface faces upward and a non-use position where the work surface faces forward. For example, Patent Document 1 below discloses a configuration in which switching between a lock position and an unlock position of a caster (caster switching operation) and switching between a use position and a non-use position of a top plate (flap operation) can be performed with a single lever. In the configuration of Patent Document 1 below, a lever for performing a flap operation is rotatably provided on one side in the left-right direction on a top plate receiver fixed to the lower surface of the top plate, and a lock for performing a caster switching operation is rotatably provided on the other side in the left-right direction.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the prior art, members (levers and locks) having different functions are directly supported on a top plate receiver fixed to the lower surface of the top plate. In this case, dimensional accuracy of the top plate receiver and the top plate, warpage of the top plate, etc. affect the relative positions of the lever and the lock, and there is a possibility of impairing the mobility of the lever and the lock.

[0005] The present invention provides a furniture with a top plate capable of ensuring the operation reliability of a top plate switching mechanism and a traveling part switching mechanism.

Means for Solving the Problems

[0006] To solve the above problems, the present invention employs the following embodiments. (1) A fixture with a top plate according to one aspect of the present invention has a running part that runs on the floor surface, and the running part is switchable between a non-running state in which it cannot run on the floor surface and a running state in which it can run on the floor surface, and has a support structure installed on the floor surface, a top plate unit supported by the support structure that is rotatable around a first axis along the left-right direction between a working position in which the work surface of the top plate faces upward and a non-use position in which the work surface faces one side in the front-rear direction, a partition member provided below the top plate unit, and a lock state that engages with the support structure to restrict the rotation of the top plate unit around the first axis to the non-use position relative to the support structure, and when the engagement with the support structure is released, The present invention provides a top plate switching mechanism positioned on one side of the partition member in the left-right direction so as to be movable between unlocked states that allow the top plate unit to rotate about the first axis relative to the support structure, and a running section switching mechanism positioned on the other side of the partition member in the left-right direction so as to be movable between a first holding state that holds the running section in a drivable state and a second holding state that holds the running section in a non-drivable state, and the top plate unit comprises a bracket that connects the top plate and the support structure and supports the partition member, the bracket supporting the partition member in a state adjacent to the partition member in the left-right direction, and side wall portions positioned spaced apart in the left-right direction from the top plate switching mechanism and the running section switching mechanism.

[0007] According to this embodiment, since the top plate switching mechanism and the running section switching mechanism are distributed and arranged on both the left and right sides of the partition member, when the top plate switching mechanism and the running section switching mechanism move, it is possible to suppress the obstruction of the movement of one mechanism by the other mechanism. Moreover, since the top plate switching mechanism and the running section switching mechanism are arranged spaced apart from the bracket (side wall) in the left and right directions, the relative positions of the top plate switching mechanism and the running section switching mechanism can be stabilized regardless of the dimensional accuracy of the bracket and top plate, or the warping of the top plate. This ensures the operational reliability of the top plate switching mechanism and the running section switching mechanism.

[0008] (2) In the fixture with a top plate according to the embodiment of (1) above, it is preferable that the side wall portion comprises one side wall portion spaced apart on one side in the left-right direction with respect to the top plate switching mechanism, and the other side wall portion spaced apart on the other side in the left-right direction with respect to the travel unit switching mechanism. In this embodiment, the top plate switching mechanism and the running section switching mechanism are surrounded from both sides in the left-right direction by one side wall and the other side wall of the bracket. Therefore, the design can be improved. In addition, it becomes more difficult for objects to enter around the top plate switching mechanism and the running section switching mechanism. Therefore, interference between the top plate switching mechanism and the running section switching mechanism and surrounding objects can be prevented, and the operation of the top plate switching mechanism and the running section switching mechanism can be prevented from being hindered by objects.

[0009] (3) In a fixture with a top plate according to the embodiment of (1) or (2) above, it is preferable that the partition member is supported by the bracket so as to be movable in a first direction, and the partition member has a first engaging portion that faces the first side in the first direction and moves the top plate switching mechanism from the locked state to the unlocked state as it moves to the first side in the first direction, and a second engaging portion that faces the second side in the first direction and moves the running part switching mechanism from the first holding state to the second holding state as it moves to the second side in the first direction. According to this embodiment, when the partition member is operated, the top plate switching mechanism and the running section switching mechanism can be operated separately.

[0010] (4) In the fixture with a top plate according to the embodiment of (3) above, it is preferable that the first engaging portion and the second engaging portion are formed integrally. According to this embodiment, compared to the case where the first engaging portion and the second engaging portion are provided on separate members, the structure can be simplified and the number of parts can be reduced.

[0011] (5) In a fixture with a top plate according to any of the embodiments of (2) to (4) above, 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, and the running section switching mechanism includes a running section switching lever that moves from the second holding state to the first holding state as the partition member moves to the second side in the first direction, and it is preferable that the partition member, the top plate switching lever and the running section switching lever are supported by the bracket so as to be able to rotate relative to each other about a second axis along the left-right direction. According to this embodiment, for example, compared to the case where the partition member, the top plate switching lever, and the running unit switching lever are slid, the operating force required to operate the top plate switching lever and the running unit switching lever via the partition member can be reduced. This makes it possible to further improve operability.

[0012] (6) In a fixture with a top plate according to any of the embodiments of (2) to (5) above, it is preferable that an operating part for operating the partition member is connected to the part of the partition member that is located on the opposite side of the second engaging part from the first engaging part. According to this embodiment, the operating force can be efficiently transmitted to the partition member. [Effects of the Invention]

[0013] According to each of the above embodiments, it is possible to improve the design and suppress interference with surrounding articles and other objects. [Brief explanation of the drawing]

[0014] [Figure 1] This is a perspective view of a display unit with a tabletop, showing the tabletop in its usage position. [Figure 2] This is a perspective view showing a portion of a fixture with a tabletop in a non-use position. [Figure 3] This is a cross-sectional view corresponding to line III-III in Figure 1, showing the caster unit in a position where it cannot move. [Figure 4]It is a cross-sectional view corresponding to FIG. 3 showing the state where the caster unit is in the travelable position. [Figure 5] It is a perspective view of the top plate accessory in the state where the top plate is removed. [Figure 6] It is a cross-sectional view of the periphery of the connecting plate seen from the outside in the left-right direction. [Figure 7] It is a perspective view of the top plate accessory in the state where the top plate is removed. [Figure 8] It is a cross-sectional view corresponding to line VIII-VIII of FIG. 6. [Figure 9] It is a cross-sectional view corresponding to line IX-IX of FIG. 6. [Figure 10] It is a view in the direction of arrow X of FIG. 2 showing the state where the top plate unit is in the use position. [Figure 11] It is an operation explanatory diagram of the top plate accessory for explaining the batch switching mode. [Figure 12] It is an operation explanatory diagram of the top plate accessory for explaining the batch switching mode. [Figure 13] It is an operation explanatory diagram of the top plate accessory for explaining the batch switching mode. [Figure 14] It is an operation explanatory diagram of the top plate accessory for explaining the batch switching mode. [Figure 15] It is an operation explanatory diagram of the top plate accessory for explaining the batch switching mode. [Figure 16] It is an operation explanatory diagram of the top plate accessory for explaining the individual switching mode.

Mode for Carrying Out the Invention

[0015] Next, embodiments of the present invention will be described with reference to the drawings. In the embodiments and modifications described below, corresponding components may be denoted by the same reference numerals and their descriptions omitted. In the following description, expressions indicating relative or absolute arrangements such as "parallel," "orthogonal," "center," and "coaxial" will not only strictly represent such arrangements, but will also represent states in which the surfaces are relatively displaced by an angle or distance that allows for tolerances or the same function to be obtained. Furthermore, in this embodiment, "facing each other" is not limited to cases where the orthogonal directions (normal directions) of the two surfaces coincide with each other, but also includes cases where the orthogonal directions intersect.

[0016] <Display unit with tabletop 1> Figure 1 is a perspective view of the fixture with a tabletop 1, showing the tabletop 3 in the usage position Q1. Figure 2 is a partially cutaway perspective view of the fixture with a tabletop 1, showing the tabletop 3 in the non-usage position Q2. The furniture with a tabletop 1 shown in Figures 1 and 2 is a desk device installed in various facilities (e.g., offices, halls, public facilities, etc.). The furniture with a tabletop 1 can move on the floor surface F via casters 2, and the orientation of the tabletop 3 can be changed depending on whether it is in use or not (a so-called flap type). In the following description, the direction perpendicular to the floor surface F will be described as the up-down direction (arrow UP is upward), and the two directions perpendicular to the up-down direction will be described as the front-back direction (arrow FR is forward) and the left-right direction (arrow LH is left), respectively.

[0017] The fixture with a tabletop 1 comprises a support structure 10, a tabletop unit 11, and an operating mechanism 12. <Support structure 10> The support structure 10 is installed on the floor surface F. The support structure 10 comprises a pair of leg units 15 spaced apart in the left-right direction, and a connecting part 16 that connects the pair of leg units 15. Each leg unit 15 has a symmetrical configuration. Therefore, in the following description, the configuration of one leg unit 15 will be explained using that leg unit 15 as an example.

[0018] <Leg Unit 15> Figure 3 is a cross-sectional view corresponding to line III-III in Figure 1, showing the state in which the caster unit 15c is in a non-movable state P1. Figure 4 is a cross-sectional view corresponding to Figure 3, showing the state in which the caster unit 15c is in a movable state P2. As shown in Figures 3 and 4, the leg unit 15 comprises a leg body 15a, an adjuster 15b, and a caster unit (running part) 15c.

[0019] The leg body 15a is formed in an L-shape when viewed from the left or right (side view). Specifically, the leg body 15a comprises a base leg 21 and a leg column 22. The base leg 21 extends in the front-rear direction and is formed in a box shape that opens downwards. A through hole 21a is formed at the rear end of the base leg 21, penetrating the top wall of the base leg 21 in the vertical direction. A ground contact portion 23 protrudes downwards from the rear end of the base leg 21.

[0020] The leg column 22 is formed in a rectangular tubular shape. The leg column 22 extends upward from the rear end of the base leg 21. In the illustrated example, the leg column 22 gradually extends forward as it goes upward. The inside of the leg column 22 communicates with the inside of the base leg 21 through a through hole 21a. In this embodiment, a reinforcing member 24 is provided at the connection point between the leg column 22 and the base leg 21. The reinforcing member 24 is formed in a box shape that opens downward. The reinforcing member 24 penetrates the lower end of the leg column 22 from the front, so that its rear end enters the inside of the leg column 22. Note that the reinforcing member 24 is not an essential component.

[0021] 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 vertically relative to the base leg 21.

[0022] The caster unit 15c is housed within the base leg 21 so as to be vertically movable. The caster unit 15c comprises a caster stay 26 and a caster 2. The caster stay 26 extends in the front-rear direction within the base leg 21. The casters 2 are provided at both ends of the caster stay 26 in the front-rear direction.

[0023] The caster unit 15c transitions between a non-movable state P1 and a movable state P2 by the operation of the operating mechanism 12. In the non-movable state P1, the lower end of the caster 2 is positioned above the ground contact portion 23 and the adjuster 15b, causing the caster 2 to be separated from the floor surface F. That is, when the caster unit 15c is in the non-movable state P1, the fixture with a top plate makes contact with the floor surface F via the ground contact portion 23 and the adjuster 15b. On the other hand, in the movable state P2, each caster 2 protrudes below the ground contact portion 23 and the adjuster 15b, causing each caster 2 to make contact with the floor surface F. That is, when the caster unit 15c is in the movable state P2, the fixture with a top plate can move on the floor surface F via the casters 2. In the following description, the state in which the caster unit 15c is in the non-movable state P1 will be used as the reference point.

[0024] <Connection part 16> Figure 5 is a perspective view of the fixture with a tabletop 1 with the tabletop 3 removed. As shown in Figure 5, the connecting portion 16 comprises a connecting plate 31, a connecting beam 32, and a positioning member 33. The connecting plate 31 is formed in a plate shape with the left-right direction as the thickness direction. Each connecting plate 31 is provided corresponding to each leg column 22. Specifically, the lower part of the connecting plate 31 is fixed from the inside in the left-right direction to the inner wall portion located on the inside of each leg column 22 by bolts or the like. In other words, the connecting plate 31 is fixed to the leg column 22 with its upper part protruding upward from the leg column 22. In the illustrated example, the upper part of the connecting plate 31 is larger than the front-rear dimension of the leg column 22 when viewed from the side.

[0025] Figure 6 is a cross-sectional view of the area around the connecting plate 31, seen from the outside in the left-right direction. As shown in Figure 6, a rotation restricting portion 31a and a return restricting portion 31b are formed on the upper part of the connecting plate 31, in the portion located towards the front. The rotation restricting portion 31a protrudes outward from the connecting plate 31 in the left-right direction. The rotation restricting portion 31a is formed in a rectangular shape when viewed from the side. The return restricting portion 31b protrudes outward from the portion of the connecting plate 31 located above the rotation restricting portion 31a in the left-right direction. The return restricting portion 31b is formed in a circular shape when viewed from the side. A receiving portion 31c is formed in the portion of the connecting plate 31 that is located above the return restricting portion 31b. The receiving portion 31c is a recess that opens on the upper edge of the connecting plate 31.

[0026] Figure 7 is a perspective view of the fixture with a tabletop 1 with the tabletop 3 removed. As shown in Figure 7, the connecting beam 32 connects the upper parts of the connecting plates 31 provided on each leg column 22. The connecting beam 32 is fixed by welding or the like to the upper part of the connecting plate 31 that is located behind the receiving portion 31c. The positioning member 33 is fixed to the portion of the connecting beam 32 located inward in the left-right direction relative to the connecting plate 31, with a gap between it and the connecting plate 31. The positioning member 33 comprises a surrounding portion 33a that surrounds the periphery of the connecting beam 32 and a protruding portion 33b that protrudes upward from the surrounding portion 33a. The surrounding portion 33a extends outward around the periphery of the connecting beam 32. A first hook portion 33c is formed on the inner periphery 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 this embodiment, the first hook portions 33c are formed in pairs at positions facing each other across the axis O1.

[0027] The protruding portion 33b extends upward from the connecting plate 31. The upper surface of the protruding portion 33b is close to or in contact with the top plate 3 from below. A second hooking portion 33d is formed on the portion of the protruding portion 33b that is located closer to the inside in the left-right direction. The second hooking portion 33d protrudes from the protruding portion 33b on both sides in the front-rear direction.

[0028] <Top panel unit 11> As shown in Figures 1 and 2, the tabletop unit 11 is supported from below by the support structure 10. The tabletop unit 11 comprises a tabletop 3 and a bracket 41. The tabletop 3 is formed in a rectangular shape with its longest side running horizontally when viewed from above (in a plan view). The horizontal dimension of the tabletop 3 is larger than the horizontal dimension of the support structure 10. The following explanation will be based on the state in which the work surface 3a of the tabletop 3 is facing upwards (usage position Q1).

[0029] Brackets 41 are fixed to both ends of the underside of the top plate 3 in the left-right direction. Each bracket 41 has a symmetrical configuration. Therefore, in the following description, the configuration of one bracket 41 will be explained using that bracket 41 as an example.

[0030] Figure 8 is a cross-sectional view corresponding to line VIII-VIII in Figure 6. Figure 9 is a cross-sectional view corresponding to line IX-IX in Figure 6. As shown in Figures 7 to 9, the bracket 41 is formed in a U-shape that opens downward when viewed from the front. Specifically, the bracket 41 comprises 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 underside of the top plate 3 at a position that overlaps with the upper end of the leg column 22 in a plan view. The top wall portion 41a extends in the front-to-back direction, with the vertical direction being the thickness direction. The inner wall portion 41b extends downward from the inner edge in the left-right direction of the top wall portion 41a. In a side view, the inner wall portion 41b is formed in a trapezoidal shape, with its dimensions in the front-to-back direction decreasing as it extends downward.

[0031] As shown in Figures 7 and 9, the bracket 41 has a receiving opening 41d that spans between the top wall portion 41a and the inner wall portion 41b. The receiving opening 41d is formed by an upper opening 41d1 that penetrates the top wall portion 41a and a lateral opening 41d2 that penetrates the inner wall portion 41b, both communicating with each other. The front-rear dimension of the upper opening 41d1 is larger than the front-rear dimension of the connecting plate 31. The front-rear dimension of the lateral opening 41d2 is larger than the outer diameter of the connecting beam 32.

[0032] The aforementioned connecting portion 16 is assembled to the leg column 22 with a bracket 41 interposed between it and the leg column 22. Specifically, the connecting plate 31 is fixed to the leg column 22 with the plate inserted into the bracket 41 through the upper opening 41d1. As a result, the connecting plate 31 abuts against the inner wall portion 41b from the outside in the left-right direction. The positioning member 33 is fitted into the lateral opening 41d2. Specifically, the positioning member 33 restricts the rotation of the connecting portion 16 around the axis O1 relative to the bracket 41 by having the outer circumferential surfaces of the surrounding portion 33a and the protruding portion 33b abut against the inner circumferential surface of the lateral opening 41d2. Furthermore, when the positioning member 33 is fitted into the lateral opening 41d2, the first hook portion 33c engages with the opening edge of the lateral 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 lateral opening 41d2 from the inside in the left-right direction. As a result, the positioning member 33 restricts the left-right movement of the connecting portion 16 relative to the bracket 41 by having the hook portions 33c and 33d engage with the inner wall portion 41b from both sides in the left-right direction.

[0033] 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 abuts against the upper end surface of the protruding portion 33b from above. As a result, the upward movement of the connecting portion 16 relative to the bracket 41 is restricted by the top plate 3.

[0034] The outer wall portion 41c extends downward from the left-right outer edge of the top wall portion 41a. In a side view, the outer wall portion 41c is formed in a trapezoidal shape, with its dimensions in the front-rear direction decreasing as it extends downward. The outer wall portion 41c is connected to the connecting plate 31 via a connecting 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 connecting plate 31 in the left-right direction and is fastened to a nut 45b fixed to the connecting plate 31. The bolt 45a is rotatably supported relative to the outer wall portion 41c. As a result, the top plate unit 11 is supported by the support structure 10 so as to be rotatable around the axis O1 of the bolt 45a along the left-right direction. Specifically, the tabletop unit 11 rotates around axis O1 between a usage position Q1 (see Figure 1) where the work surface 3a of the tabletop 3 faces upward, and a non-use position Q2 (see Figure 2) where the work surface 3a of the tabletop 3 faces backward (to one side in the front-to-back direction). In defining the usage position Q1 and the non-use position Q2, it is sufficient to define the non-use position Q2 such that the front-to-back component of the normal direction of the work surface 3a is larger than that of the usage position Q1. In this embodiment, the tabletop 3 in the usage position Q1 is positioned with the work surface 3a parallel to the floor surface F. On the other hand, the tabletop 3 in the non-use position Q2 is positioned with the work surface 3a intersecting the floor surface F at an acute angle.

[0035] <Operating mechanism 12> As shown in Figure 5, the operating mechanism 12 performs the operation of changing the orientation of the top plate unit 11 (hereinafter referred to as the flap operation) and the up and down movement of the caster unit 15c (hereinafter referred to as the caster switching operation). The operating mechanism 12 comprises an interlocking shaft 51, a pair of operating modules 52, and an operating unit 54.

[0036] As shown in Figure 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 a pair of brackets 41 so as to be rotatable around an axis O2 parallel to axis O1. As shown in Figure 8, both ends of the interlocking shaft 51 in the left-right direction pass through the brackets 41 in the left-right direction through the inner wall portion 41b and the outer wall portion 41c of the corresponding brackets 41. The portion of the interlocking shaft 51 located inside the brackets 41 passes through the receiving portion 31c of the corresponding connecting plate 31.

[0037] As shown in Figure 5, the actuation modules 52 are 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 modules 52 will be explained using one of the actuation modules 52 as an example.

[0038] The operating 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 Figures 5 and 6, the linking lever 61 is formed in a plate shape with the left-right direction as the thickness direction. The linking lever 61 is configured to rotate integrally with the interlocking shaft 51 within the bracket 41. That is, the linking lever 61 is rotatably supported on the top plate unit 11 via the interlocking shaft 51.

[0039] The linkage lever 61 comprises a linkage base portion 61a, a first transmission portion 61b, and a second transmission portion 61c. In a side view, the linkage base portion 61a extends downward as it faces forward. The interlocking shaft 51 is fixed to the rear end (upper end) of the linkage base portion 61a. On the other hand, a connection portion 61a1 is formed at the front end (lower end) of the linkage base portion 61a. The connection portion 61a1 is, for example, a through hole that penetrates the linkage base portion 61a in the left-right direction.

[0040] The first transmission portion (first engagement portion) 61b is formed in the central part of the linkage base portion 61a in the front-rear direction. The first transmission portion 61b is a recess that penetrates the linkage base portion 61a in the left-right direction and opens on the upper end surface of the linkage base portion 61a. In a side view, the first transmission portion 61b opens along the tangential direction of a virtual circle passing through the axis O2. Therefore, the bottom surface of the first transmission portion 61b faces the first side around the axis O2. The second transmission section 61c is formed in the portion of the linkage base section 61a that is located behind the first transmission section 61b. The second transmission section 61c bulges outward and downward in the left-right direction relative to the linkage base section 61a. Of the second transmission section 61c, the rearward-facing surface constitutes a transition engagement surface (second engagement section) 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 section 61b in the circumferential direction around the axis O2, and faces the second side around the axis O2.

[0041] The linkage lever 61 rotates integrally with the interlocking shaft 51 around the axis O2 when the operation of the operating part 54 is transmitted to the connected part 61a1. In this embodiment, the linkage lever 61 is configured to be rotatable on both sides (both front and rear directions) around the axis O2 with respect to the reference position R1 when no operating force is applied.

[0042] As shown in Figure 6, the top plate switching lever 62 is positioned inside the bracket 41, in the left-right direction relative to the linking lever 61. The top plate switching lever 62 is positioned 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 to the rear in a side view. The top plate switching lever 62 comprises a lever body 62a, an engaging claw 62b, and an engaging projection 62c.

[0043] The interlocking shaft 51 passes through the upper end of the lever body 62a. The top plate switching lever 62 is supported by the interlocking shaft 51 so as to be rotatable around axis O2. In other words, the top plate switching lever 62 and the linking lever 61 are configured to be rotatable relative to each other around axis O2. Furthermore, the top plate switching lever 62 is rotatably supported by the top plate unit 11 (bracket 41) and the linking lever 61 via the interlocking shaft 51.

[0044] The engaging claw 62b protrudes rearward from the lower end of the lever body 62a. The engaging claw 62b moves between a locked state S1 and an unlocked state S2 as the top plate switching lever 62 rotates around 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 engages with the rotation restricting part 31a from below. By engaging with the rotation restricting part 31a, the engaging claw 62b restricts the rotation of the top plate unit 11 relative to the support structure 10 to the unused position Q2 (see Figure 2). On the other hand, as shown in Figure 15, when the top plate unit 11 is in the unused position Q2, the engaging claw 62b moves to the locked state S1 and engages (butts against) the return restricting part 31b from above. As a result, the engaging claw 62b restricts the rotation of the top plate switching lever 62 from the unused position Q2 to the usage position Q1. Furthermore, as shown in Figure 14, when the lock is released in state S2, the engaging claw 62b retracts to a position (forward) where it does not overlap with the rotation restricting part 31a in a plan view, thereby releasing its engagement with the rotation restricting part 31a. This allows the top plate unit 11 to rotate to the unused position Q2 relative to the support structure 10.

[0045] The engaging projection 62c protrudes outward in the left-right direction from the central part of the lever body 62a in the vertical direction, specifically from the part located forward. The engaging projection 62c is housed within the first transmission unit 61b, thereby enabling engagement with the first transmission unit 61b. When the top plate switching lever 62 is in the locked state S1, as the linking lever 61 rotates from the reference position R1 to the first side (forward) around the axis O2, the engaging projection 62c is pushed towards the first side around the axis O2 via the first transmission unit 61b, causing the top plate switching lever 62 to rotate together with the linking lever 61. As a result, 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, as the linking lever 61 rotates from the reference position R1 to the second side (rearward) around the axis O2, the engagement between the first transmission unit 61b and the engaging projection 62c is released, and the lever maintains a stationary state in the locked state S1. Furthermore, a lever biasing member (not shown) is interposed between the top plate switching lever 62 and the top plate unit 11 (for example, the top wall portion 41a) to bias the top plate switching lever 62 toward the locked state S1.

[0046] Figure 10 is a view taken along arrow X in Figure 2, showing the top panel unit 11 in the usage position Q1. As shown in Figures 5 and 10, the caster drive unit 63 connects the linkage lever 61 and the caster unit 15c. The caster drive unit 63 moves the caster unit 15c between a non-movable state P1 and a movable state P2 as the linkage lever 61 rotates. Specifically, the caster drive unit 63 includes a caster switching lever (travel section switching mechanism) 71 and a caster link 72 (see Figure 3).

[0047] The caster switching lever 71 is positioned outside the linking lever 61 in the left-right direction within the bracket 41. The caster switching lever 71 is positioned spaced apart from the outer wall portion 41c in the left-right direction. In other words, the caster switching lever 71 and the top plate switching lever 62 are surrounded on both sides in the left-right direction by the inner wall portion 41b and the outer wall portion 41c of the bracket 41, and are positioned separately on both sides in the left-right direction relative to the linking lever 61.

[0048] 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 section 71a, a return guide section 71b, and a connecting pin 71c.

[0049] The transition guide section 71a extends vertically with the left-right direction being the thickness direction. The interlocking shaft 51 passes through the upper end of the transition guide section 71a. The caster switching lever 71 is supported by the interlocking shaft 51 so as to be rotatable around axis O2. That is, the caster switching lever 71 and the linking lever 61 are configured to be rotatable relative to each other around axis O2. The caster switching lever 71 is also rotatably supported by the top plate unit 11 (bracket 41) and the linking lever 61 via the interlocking shaft 51. Thus, 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 interlocking shaft 51, spaced apart from the inner wall 41b and the outer wall 41c in the left-right direction. The transition guide section 71a engages (contacts) the transition engagement surface 61c1 from the rear.

[0050] The return guide section 71b extends forward from the upper end of the transition guide section 71a. The return guide section 71b approaches or abuts against the return engagement surface 61c2 from above. In the combined switching mode described later, the return guide section 71b abuts against 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) around the axis O2, thereby restricting the rotation of the caster switching lever 71 relative to the linkage lever 61 to the second side (rearward) around the axis O2. The connecting pin 71c protrudes outward in the left-right direction from the lower end of the transition guide portion 71a.

[0051] The caster switching lever 71 rotates together with the linking lever 61 (see Figure 16) as the transition guide part 71a is pushed backward via the second transmission part 61c (transition engagement surface 61c1) during the process in which the linking lever 61 rotates from the reference position R1 to the second side (rearward) around the axis O2. As a result, the caster switching lever 71 rotates (rotates on its own axis) to the second side around the axis O2, such that the connecting pin 71c is pushed upward. Specifically, the caster switching lever 71 rotates between a first holding state T1 (see Figure 10) that holds the caster unit 15c in a non-movable state P1 and a second holding state T2 (see Figure 16) that holds the caster unit 15c in a movable state P2. 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 downward movement of the caster unit 15c relative 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 to the second side around the axis O2 by the linking lever 61. In this state, the caster switching lever 71 restricts the upward movement of the caster unit 15c relative to the leg body 15a via the caster link 72. The caster switching lever 71 and the top plate switching lever 62 are configured to move on the same circumference (in the same direction) around the axis O2 by the rotational movement of the linking lever 61.

[0052] Meanwhile, the caster switching lever 71 revolves around axis O1 such that as the top plate unit 11 moves from the usage position Q1 to the non-use position Q2, axis O2 moves around axis O1, causing the connecting pin 71c to be pulled upward (see Figure 13).

[0053] As shown in Figures 2 to 4, the caster link (lifting mechanism) 72 connects the caster switching lever 71 and the caster unit 15c, and transmits the driving force associated with the movement of the caster switching lever 71 to the caster unit 15c. The caster link 72 comprises a connecting bar 80, a rear link bar 81, and a front link bar 82. The connecting bar 80 connects the caster switching lever 71 and the rear link bar 81. The connecting bar 80 passes through the leg column 22 in the vertical direction. Specifically, the connecting bar 80 extends linearly upward from its lower end, and then curves backward as its upper end extends upward. As shown in Figure 10, the upper end of the connecting bar 80 is connected to the connecting pin 71c so as to be rotatable around an axis along the left-right direction. That is, the connecting bar 80 moves up and down in accordance with the rotation and revolution of the caster switching lever 71.

[0054] As shown in Figures 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 comprises 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 of the reinforcing member 24 around 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 leg column 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 of the caster stay 26 around an axis along the left-right direction. In other words, the rear link bar 81 rotates around the central connecting portion 81a as an operating force is applied in the vertical direction via the first connecting portion 81b in accordance with the vertical movement of the connecting bar 80. 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 rotates so that the second connecting portion 81c moves upward as the connecting bar 80 moves downward.

[0055] The front link bar 82 is rotatably connected to the base leg 21 and the caster stay 26 at its front end within the base leg 21. The front link bar 82 extends linearly with its thickness in the left-right direction. The first end of the front link bar 82 is rotatably connected to a support portion 21c provided on the base leg 21 around an axis along the left-right direction. The second end of the front link bar 82 is rotatably connected to the caster stay 26 around an axis along the left-right direction. The front link bar 82 rotates relative to the base leg 21 and the caster stay 26 in conjunction with the vertical movement of the caster stay 26 caused by the rotation of the rear link bar 81, thereby causing the front end of the caster stay 26 to move up and down relative to the base leg 21. The caster unit 15c is biased into a non-movable state P1 by a caster biasing member (not shown) provided between the caster stay 26 and the base leg 21.

[0056] As shown in Figure 6, the operating unit 54 is connected to, for example, the connected portion 61a1 of the linkage lever 61 that constitutes the right-side operating module 52. The operating unit 54 is formed in a plate shape with the left-right direction as the thickness direction. The operating unit 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 of the operating unit 54 is located behind the front end surface of the top plate 3. Note that the operating unit 54 may be provided for each operating module 52. Also, the operating unit 54 may extend, for example, from the connected portion 61a1 toward both the front and rear sides so that it can be operated from both the front and rear sides of the top plate fixture 1. Alternatively, the operating unit 54 may be operated indirectly via an operating lever provided on the lower surface of the top plate 3 or the like.

[0057] <How to use the display unit with a tabletop 1> Next, the method of using the fixture with a top plate 1 will be described. The fixture with a top plate 1 in this embodiment is designed so that the caster switching operation can be performed regardless of whether the flap operation is performed or not. In the following description, a batch switching mode in which the caster switching operation is performed when the top plate unit 11 is moved to the unused position Q2, and a single switching mode in which the caster switching operation is performed while the top plate unit 11 is in use position Q1 will be described. Furthermore, in the following description, the initial state will be described as the state in which the top plate unit 11 is in use position Q1 and the caster unit 15c is in a non-movable state P1.

[0058] Figures 11 to 15 are diagrams illustrating the operation of the top-mounted fixture 1 to explain the batch switching mode. Figures 11 to 13 correspond to Figure 10, and Figures 14 and 15 correspond to Figure 6. First, let's explain the batch switching mode. With the top-mounted fixture 1 in its initial position, as shown in Figures 10 and 11, pulling the operating unit 54 forward (see arrow F1) causes the linkage lever 61 to rotate from the reference position R1 to the first side around axis O2. Then, as shown in Figures 6 and 13, the engaging projection 62c is pushed to the first side around axis O2 via the first transmission unit 61b, causing the top-mounted switching lever 62 to rotate to the first side around axis O2 together with the linkage lever 61. At this time, the return engaging surface 61c2 of the linkage lever 61 is in contact with the return guiding unit 71b of the caster switching lever 71 from below. As the linkage lever 61 in one of the operating modules 52 rotates, the interlocking shaft 51 also rotates to the first side around axis O2. As a result, the rotational movement of the linkage lever 61 in one operating module 52 is transmitted via the interlocking shaft 51 to the linkage lever 61 in the other operating module 52, causing the pair of operating modules 52 to operate synchronously.

[0059] As shown in Figures 11 and 14, when the top plate switching lever 62 rotates to the first side around axis O2 against the biasing force of the lever biasing member, the top plate switching lever 62 transitions from a locked state S1 to an unlocked state S2, thereby releasing the engagement between the engaging claw 62b and the rotation restricting part 31a. This allows the top plate unit 11 to rotate around axis O1 relative to the support structure 10.

[0060] After the top plate switching lever 62 moves to the unlocked state S2, the top plate unit 11 is moved toward the unused position Q2. Specifically, as shown in Figure 12, while pulling the operating part 54 (while rotating the linkage lever 61 toward the first side around axis O2), the front end of the top plate 3 is pushed up. This causes the top plate unit 11 to rotate around axis O1. As a result, the interlocking shaft 51 disengages from the receiving part 31c, and the top plate unit 11 moves to the unused position Q2.

[0061] As the top plate unit 11 moves from the usage position Q1 to the non-usage position Q2, the axis O2 revolves upward around the axis O1. As a result, the linkage 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, it moves upward. Then the connecting bar 80 is pulled up via the connecting pin 71c. At this time, the return guide part 71b is in contact with the return engagement surface 61c2 from above, restricting the rotation of the caster switching lever 71 relative to the linkage lever 61 in the second side (rearward) around the axis O2.

[0062] As shown in Figures 3 and 4, as the connecting bar 80 moves upward, the first connecting portion 81b is pulled up, causing the rear link bar 81 to rotate around the central connecting portion 81a. This causes the second connecting portion 81c to move downward, pushing down the rear end of the caster unit 15c via the caster stay 26. Also, as the caster stay 26 moves downward, the front link bar 82 rotates so that its second end faces downward, pushing down the front end of the caster unit 15c. As a result, the caster unit 15c moves to a drivable state P2 against the biasing force of the caster biasing member. In other words, in the fixture with a top plate 1 of this embodiment, as the top plate unit 11 moves from the usage position Q1 to the non-usage position Q2, the caster unit 15c moves from a non-drivable state P1 to a drivable state P2.

[0063] As shown in Figures 13 and 15, after the caster unit 15c transitions to the drivable state P2, the operating force on the operating section 54 is released. The linking lever 61 is subjected to a biasing force, for example, from a lever biasing member via the top plate switching lever 62. As a result, the linking lever 61 and the top plate switching lever 62 rotate together to the second side around the axis O2. Consequently, the linking 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 unit 11 is in the unused position Q2, the top plate switching lever 62 returns to the locked state S1, and the engaging claw 62b engages with the return restricting section 31b from above. This restricts the rotation of the top plate unit 11 to the unused position Q2 relative to the support structure 10.

[0064] By using the batch switching mode, the fixture with a tabletop 1 can be moved on the floor surface F with the tabletop unit 11 flipped up to the unused position Q2. In this case, the leg units 15 of adjacent fixtures with tabletops 1 in the front-to-back direction can be nested together, and the tabletop units 11 can be stored stacked in the front-to-back direction (so-called nesting storage), thereby reducing storage space.

[0065] To return the top-mounted fixture 1 to its initial position, the reverse operation described above is performed. Specifically, the linkage lever 61 is rotated to the first side around axis O2 via the operation unit 54, and with the top-mounted switching lever 62 in the unlocked state S2, the top-mounted unit 11 is rotated around axis O1. This returns the top-mounted unit 11 to the usable position Q1. During the process of the top-mounted unit 11 returning to the usable position Q1, the linkage lever 61, the top-mounted switching lever 62, and the caster switching lever 71 revolve downwards around axis O1. This causes the caster switching lever 71 to move downwards, and the caster unit 15c is pulled up from the movable state P2 to the immobile state P1 via the caster link 72. As a result, the top-mounted fixture 1 makes contact with the floor surface F via the ground contact part 23 and the adjuster 15b.

[0066] Figure 16 is an operational diagram illustrating the standalone switching mode, and corresponds to Figure 10. Next, the standalone switching mode will be explained. As shown in Figures 10 and 16, when the operating part 54 is pushed backward (see arrow F2), the linkage lever 61 rotates from the reference position R1 to the second side around axis O2. Then, the transition guide part 71a is pushed in via the transition engagement surface 61c1, causing the caster switching lever 71 to rotate (spin) together with the linkage lever 61 to the second side around axis O2. As a result, the caster switching lever 71 transitions from the first holding state T1 to the second holding state T2.

[0067] As the caster switching lever 71 transitions to the second holding state T2, the connecting bar 80 is pulled up via the connecting pin 71c. Then, as shown in Figures 3 and 4, the caster link 72 lowers the caster unit 15c, and the caster unit 15c transitions from a non-movable state P1 to a movable state P2. In other words, in the standalone switching mode, the top plate unit 11 remains in the operating position Q1, while the caster unit 15c transitions from a non-movable state P1 to a movable state P2.

[0068] In standalone switching mode, the top panel unit 11 can be moved along the floor surface F while remaining in the usage position Q1. Therefore, if you want to make fine adjustments to the position of the fixture with a top panel 1, you can do so without flipping up the top panel unit 11.

[0069] In standalone switching mode, to return the top-mounted fixture 1 to its initial position (caster unit 15c to the non-movable state P1), for example, the operating unit 54 is pulled in. This causes the linking lever 61 to rotate toward the first side around axis O2, returning the linking lever 61 to the reference position R1. As the linking lever 61 rotates toward the reference position R1, the transition engagement surface 61c1 separates from the transition guide unit 71a. Then, the biasing force of the caster biasing member causes the caster unit 15c to rise from the movable state P2 to the non-movable state P1. As a result, the connecting bar 80 is pulled down, causing the caster switching lever 71 to rotate toward the first side around axis O2, following the linking lever 61. In order to return the caster unit 15c to the non-movable state P1, the return engagement surface 61c2 may be pushed the return guide portion 71b toward the first side around axis O2 as the linkage lever 61 rotates toward the reference position R1, causing the caster switching lever 71 to rotate toward the first side around axis O2 in conjunction with the linkage lever 61, and the connecting bar 80 to be pushed down via the connecting pin 71c.

[0070] Thus, in this embodiment, the top plate switching lever 62 is positioned on one side in the left-right direction relative to the connecting member (partition member) 61, and the caster switching lever 71 is positioned on the other side in the left-right direction relative to the connecting member 61. With this configuration, the top plate switching lever 62 and the caster switching lever 71 are distributed and arranged on both the left and right sides of the connecting member 61. Therefore, when the top plate switching lever 62 and the caster switching lever 71 move, it is possible to prevent the movement of one member from being obstructed by the other member. Moreover, since the top plate switching lever 62 and the caster switching lever 71 are spaced apart in the left and right directions from the bracket 41 (inner wall portion 41b and outer wall portion 41c), the relative positions of the top plate switching lever 62 and the caster switching lever 71 can be stabilized regardless of the dimensional accuracy of the bracket 41 and the top plate 3, or the warping of the top plate 3. This ensures the operational reliability of the top plate switching lever 62 and the caster switching lever 71.

[0071] In particular, in this embodiment, the bracket 41 connecting the top plate 3 and the support structure 10 is configured to include an inner wall portion (one side wall portion) 41b located on one side in the left-right direction relative to the top plate switching lever 62, and an outer wall portion (other side wall portion) 41c located on the other side in the left-right direction relative to the caster switching lever 71. In this configuration, the tabletop switching lever 62 and the caster switching lever 71 are surrounded from both sides in the left-right direction by the inner wall portion 41b and the outer wall portion 41c of the bracket 41. Therefore, the aesthetic appearance can be improved. In addition, it becomes more difficult for objects to enter the area around the tabletop switching lever 62 and the caster switching lever 71. Therefore, interference between the tabletop switching lever 62 and the caster switching lever 71 and surrounding objects can be prevented, thus preventing the operation of the tabletop switching lever 62 and the caster switching lever 71 from being hindered by objects.

[0072] In this embodiment, the connecting member 61 is supported by the bracket 41 so as to be movable in the direction around the axis O2 (first direction), and the first transmission part 61b and the second transmission part 61c (transition engagement surface 61c1) are configured to face opposite sides at positions separated around the axis O2. With this configuration, when the linking member 61 is operated, the top plate switching lever 62 and the caster switching lever 71 can be operated separately.

[0073] In this embodiment, the first transmission portion 61b and the transition engagement surface 61c1 are integrally formed as a linking member 61. This configuration allows for a simpler structure and a reduction in the number of parts compared to a case where the first transmission section and the transition engagement surface are provided on separate components.

[0074] In this embodiment, the linking member 61, the top plate switching lever 62, and the caster switching lever 71 are supported on the top plate unit 11 so as to be able to rotate relative to each other around the axis O2. With this configuration, for example, compared to sliding the connecting member 61, the top plate switching lever 62, and the caster switching lever 71, the operating force required to operate the top plate switching lever 62 and the caster switching lever 71 via the connecting member 61 can be reduced. This further improves operability.

[0075] In this embodiment, an operating unit 54 for operating the linking member 61 is connected to the portion of the linking member 61 that is located on the opposite side of the transition engagement surface 61c1 to the first transmission unit 61b. With this configuration, the operating force can be efficiently transmitted to the linking member 61.

[0076] 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 interlocking shaft 51. This configuration reduces the amount of post-processing required on the bracket 41 compared to a configuration where the caster switching lever 71 and the tabletop switching lever 62 are separately supported by the bracket 41. This reduces manufacturing costs. Furthermore, it suppresses the reduction in strength of the bracket 41 compared to a configuration where support holes for the caster switching lever 71 and the tabletop switching lever 62 are formed separately as a post-processing step on the bracket 41.

[0077] (Other variations) While preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Additions, omissions, substitutions, and other modifications are possible without departing from the spirit of the present invention. The present invention is not limited by the above description, but only by the appended claims. In the embodiment described above, the caster unit 15c moves up and down by the caster drive unit 63, thereby moving between a non-movable state P1 and a movable state P2. However, the configuration is not limited to this. The caster drive unit 63 may be configured to switch between restricting and allowing the rotation of the caster 2 itself by means of, for example, a brake or a gear lock. In this case, the fixture with a top plate 1 always makes contact with the floor surface F via the casters 2.

[0078] In the embodiment described above, a configuration was described in which the caster unit 15c transitions between a non-movable state P1 and a movable state P2 via the caster link 72 as the caster switching lever 71 rotates, but the configuration is not limited to this. The caster switching lever 71 may be configured to restrict or allow the transition of the caster unit 15c between a non-movable state P1 and a movable state P2. That is, when the caster switching lever 71 is in a first holding state T1, it may hold the caster unit 15c in a movable state P2 and restrict the transition of the caster unit 15c to a non-movable state P1, and when it is in a second holding state T2, it may hold the caster unit 15c in a non-movable state P1 and restrict the transition of the caster unit 15c to a movable state P2. In this case, the caster unit 15c may be manually operated to a non-movable state P1 when the caster switching lever 71 transitions from a first holding state T1 to a second holding state T2, or the caster unit 15c may be manually operated to a movable state P2 when the caster switching lever 71 transitions from a second holding state T2 to a first holding state T1.

[0079] In the embodiments described above, examples of the linkage mechanism, top plate switching mechanism, and running section switching mechanism being composed of levers were explained, but the configuration is not limited to this. The linkage mechanism, top plate switching mechanism, and running section switching mechanism may each be composed of multiple members such as cams and links. In the embodiments described above, a desk was used as an example of the fixture with a tabletop 1 according to the present invention, but the invention is not limited to this configuration. The fixture with a tabletop according to the present invention can be used for various fixtures having a tabletop, such as shelves and cart devices. In the embodiment described above, the fixture with a tabletop 1 was described in which a pair of leg units 15 are provided, but the configuration is not limited to this. There may be only one leg unit 15.

[0080] In the above-described embodiment, a configuration was explained in which the top plate switching lever 62 and the caster drive unit 63 are operated by the rotational movement of the linkage lever 61 around the axis O2, but the configuration is not limited to this. For example, the top plate switching lever 62 and the caster drive unit 63 may be operated in conjunction with the sliding movement of the linkage lever 61. In the above-described embodiment, a configuration was explained in which the top plate switching lever 62 or the caster drive unit 63 is activated when the linkage lever 61 moves along the same circumference of the reference position R1, but the configuration is not limited to this. The direction of operation of the top plate switching lever 62 and the direction of operation of the caster drive unit 63 may intersect with respect to the reference position R1.

[0081] In the above-described embodiment, a configuration was explained in which the caster unit 15c transitions to a movable state P2 as the top plate unit 11 moves to an unused position Q2, but the configuration is not limited to this. The fixture with a top plate 1 according to the present invention is configured such that the top plate unit 11 moves to an unused position Q2 when the linkage lever 61 moves from the reference position R1 to the first side, and the caster unit 15c transitions to a movable state P2 when the linkage lever 61 moves from the reference position R1 to the second side.

[0082] In the embodiment described above, a connecting member 61 was used as an example of a partition member separating the top plate switching lever 62 and the caster switching lever 71, but the configuration is not limited to this. The partition member may be configured to be immovable relative to the bracket 41. In the embodiment described above, a configuration was described in which the top plate switching lever 62 and the caster switching lever 71 are operated by the movement of a single linking member 61, but the configuration is not limited to this. The top plate switching lever 62 and the caster switching lever 71 may be operated by separate operating mechanisms. In the embodiment described above, the top plate switching lever 62 and the caster switching lever 71 are operated separately in accordance with the movement of the connecting member 61 to both sides around the axis O2, but the configuration is not limited to this. The top plate switching lever 62 and the caster switching lever 71 may be configured to operate in accordance with the movement of the connecting member in one direction. In the embodiment described above, a configuration was described in which the first transmission portion 61b as the first engaging portion and the transition engaging surface 61c1 as the second engaging portion are integrally formed on the linking member 61, but the configuration is not limited to this. The first engaging portion and the second engaging portion may be formed on separate members.

[0083] Furthermore, without departing from the spirit of the present invention, the components in the embodiments described above can be replaced with well-known components as appropriate, and the modifications described above can be combined as appropriate. [Explanation of Symbols]

[0084] 1: Display unit with tabletop 3: Top plate 3a: Working surface 10: Support structure 11: Top panel unit 15a: Leg body 15c: Caster unit (running mechanism) 41b: Inner wall (side wall) 41c: Outer wall (side wall) 54:Operation section 61: Connecting member (partition member) 61b: First transmission section (first engagement section) 61c1: Transition engagement surface (second engagement portion) 62: Top panel switching lever (top panel switching mechanism) 71: Caster switching lever (running mechanism, running lever) O1: Axis (1st axis) O2: Axis (second axis) P1: Unable to drive P2: Ready to drive Q1: Usage position Q2: Unused position R1: Reference position S1: Locked state S2: Unlocked state T1: First holding state T2: Second holding state

Claims

1. It has a running part that travels on the floor surface, and the running part is switchable between a non-movable state in which it cannot travel on the floor surface and a movable state in which it can travel on the floor surface, and a support structure installed on the floor surface, A tabletop unit supported by the support structure, having a tabletop supported by the support structure, and rotatable around a first axis along the left-right direction between a working position where the work surface of the tabletop faces upward and a non-working position where the work surface faces one side in the front-rear direction, A partition member provided below the aforementioned top plate unit, A top plate switching mechanism is positioned on one side in the left-right direction relative to the partition member so as to be movable between a locked state in which it engages with the support structure and restricts the rotation of the top plate unit around the first axis to the unused position relative to the support structure, and an unlocked state in which it is released from engagement with the support structure and allows the rotation of the top plate unit around the first axis relative to the support structure. A running section switching mechanism is provided, which is positioned on the other side in the left-right direction relative to the partition member so as to be movable between a first holding state that holds the running section in the drivable state and a second holding state that holds the running section in the non-drivable state. 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 includes side wall portions arranged spaced apart in the left-right direction from the top plate switching mechanism and the running section switching mechanism. The partition member is supported by the bracket so as to be movable in the first direction, The aforementioned partition member is A first engaging portion that faces the first side in the first direction and moves the top plate switching mechanism from the locked state to the unlocked state as it moves toward the first side in the first direction, The device comprises a second engaging portion which faces the second side in the first direction and moves the travel portion switching mechanism from a first holding state to a second holding state as it moves to the second side in the first direction, The top panel switching mechanism includes a top panel switching lever that moves from the locked state to the unlocked state as the partition member moves toward the first side in the first direction, The travel section switching mechanism includes a travel section switching lever that transitions from a second holding state to a first 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 travel unit switching lever are supported by the bracket so as to be rotatable relative to each other around a second axis along the left-right direction in a fixture with a top plate.

2. A running unit that travels on a floor surface, the running unit being switchable between a non-running state in which it cannot travel on the floor surface and a running state in which it can travel on the floor surface, and a support structure installed on the floor surface, A tabletop unit supported by the support structure, having a tabletop supported by the support structure, and rotatable around a first axis along the left-right direction between a working position where the work surface of the tabletop faces upward and a non-working position where the work surface faces one side in the front-rear direction, A partition member provided below the aforementioned top plate unit, A top plate switching mechanism is positioned on one side in the left-right direction relative to the partition member so as to be movable between a locked state in which it engages with the support structure and restricts the rotation of the top plate unit around the first axis to the unused position relative to the support structure, and an unlocked state in which it is released from engagement with the support structure and allows the rotation of the top plate unit around the first axis relative to the support structure. A running section switching mechanism is provided, which is positioned on the other side in the left-right direction relative to the partition member so as to be movable between a first holding state that holds the running section in the drivable state and a second holding state that holds the running section in the non-drivable state. 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 includes side wall portions arranged spaced apart in the left-right direction from the top plate switching mechanism and the running section switching mechanism. The top plate switching mechanism and the running section switching mechanism are arranged on both sides in the left-right direction relative to the partition member, and are positioned so as not to come into contact with each other in the left-right direction.

3. The aforementioned side wall portion is A side wall portion is positioned spaced apart on one side in the left-right direction relative to the top plate switching mechanism, The fixture with a top plate according to claim 1 or claim 2, further comprising: another side wall portion arranged at a distance from the running section switching mechanism to the other side in the left-right direction.

4. The fixture with a top plate according to claim 1, wherein the first engaging portion and the second engaging portion are integrally formed.

5. The fixture with a top plate according to claim 1, wherein an operating part for operating the partition member is connected to the portion of the partition member located on the opposite side of the second engaging portion to the first engaging portion.

Images