JP6806226B2 - Furniture with flap top plate - Google Patents

Description

The present invention relates to furniture with a flap top plate such as a flap table.

Conventionally, as this kind of furniture, a leg having casters that can be selectively switched to a wheel locked state or a wheel unlocked state, and a heaven that is supported by the leg and capable of flap operation from a used posture to a flip-up posture. Those provided with a plate are known (see, for example, Patent Document 1).

In this type of furniture, an operating lever for flapping the top plate and an operating body for switching the caster to the wheel locked state or the wheel unlocked state are separately provided.

However, if the operating lever for flap operation and the operating body for caster lock are provided separately, there is an advantage that the degree of freedom of usage is high, but the installation and removal are always the same. In the case of furniture and the like that are repeated in the above, the burden on the installation worker cannot be ignored, and some improvement is desired.

Specifically, for example, a flap table that has been stored in a storage cabinet or the like in a flip-up posture is moved to a place of use in that posture, and an operation lever is operated at a predetermined position. It is necessary to return the top plate to the working posture and to operate the operating body to switch the casters from the wheel unlocked position to the wheel locked state, and this is also applied when cleaning up those furniture. Work is essential. Therefore, the work man-hours for installation and removal increase, and the burden on the worker becomes heavy, especially when the number of furniture is large.

JP-A-2017-81474

Focusing on the above points, it is an object of the present invention to reduce the work man-hours for installation and removal in furniture in which installation and removal are always repeated in the same manner.

The furniture with a flap top plate according to the invention of claim 1 has a leg body having casters that can be selectively switched to a wheel locked state or a wheel unlocked state, and a leg body supported by the leg body from a use posture to a flip-up posture. A top plate capable of flapping between the top plates and an operation interlocking means for switching the caster to the wheel locked state or the wheel unlocked state by using the flap operation of the top plate are provided. A furniture with a flap top plate provided with a temporary release operation unit for temporarily releasing the wheel locked state to bring the wheel unlocked state, and the legs have casters at both front and rear ends, respectively. It is equipped with an attached base, and caster interlocking members for switching both casters to the wheel locked state or the wheel unlocked state by moving in the front-rear direction are arranged in the base, and both casters operate respectively. It is configured to switch to the wheel locked state or the wheel unlocked state by moving the portion in the front-rear direction, both of the operating portions are connected by the caster interlocking member, and the caster interlocking member is the both Both casters are configured to be in a wheel unlocked state when they are moved to the most advanced position together with the operating portion .

The furniture with a flap top plate according to the invention according to claim 2 has a structure according to claim 1, wherein the base has caster mounting portions at both front and rear ends, and the casters are mounted on the caster mounting portions. The caster interlocking member is configured to be housed in the base together with both the actuating portions in a state where the caster interlocking members are attached .

The furniture with a flap top plate according to the third aspect of the invention has a leg body having casters that can be selectively switched to a wheel locked state or a wheel unlocked state, and a leg body supported by the leg body from a use posture to a flip-up posture. A top plate capable of flapping between the top plates and an operation interlocking means for switching the casters to the wheel locked state or the wheel unlocked state by using the flap operation of the top plate are provided. A furniture with a flap top plate provided with a temporary release operation unit for temporarily releasing the wheel locked state to bring the wheel unlocked state, and the legs have casters on both front and rear ends, respectively. It is equipped with an attached base, and caster interlocking members for switching both casters to the wheel locked state or the wheel unlocked state by moving in the front-rear direction are arranged in the base, and the casters are in the wheel locked state. A tension spring that helps to automatically return is provided between the caster interlocking member and the base .

The furniture with a flap top plate according to the invention of claim 4 has the configuration according to claim 3 , wherein the caster interlocking member has moved to the most advanced position while resisting the urging force of the tension spring. The casters are set so that the wheels are unlocked .

The furniture with a flap top plate according to the invention of claim 5 has the configuration according to claim 3 or 4, wherein the operation interlocking means performs a flap operation of the top plate via a link mechanism on both actuating portions of both casters. It is mechanically transmitted to the caster interlocking member connecting the spaces .
Flap top plate furnished according to the invention請Motomeko 6 in that in those of the configuration of claim 1, 2, 3, 4 or 5, wherein the temporary release operation section is near the edge of the lower surface of the top plate It is provided in.
The furniture with a flap top plate according to the invention according to claim 7 has the configuration according to claim 1, 2 , 3, 4, 5 or 6 , and the temporary release operation unit is operated. When the caster is in the wheel unlocked state and the operation on the temporary release operation unit is stopped, the caster is configured to automatically return to the wheel locked state.
The furniture with a flap top plate according to the invention of claim 8 has the configuration according to claim 1, and is a caster interlocking member by operating the temporary release operation unit while the top plate is in the use posture. Is configured to move forward and the caster switches from the wheel locked state to the wheel unlocked state .

According to the present invention, it is possible to reduce the work man-hours for installation and removal in furniture in which installation and removal are always repeated in the same manner.

The perspective view which shows the furniture with a flap top plate which concerns on one Embodiment of this invention. The front view which shows the furniture with a flap top plate which concerns on the same embodiment. An enlarged side view showing furniture with a flap top plate according to the same embodiment. The perspective view which shows the furniture with a flap top plate which concerns on the same embodiment. The front view which shows the furniture with a flap top plate which concerns on the same embodiment. An enlarged side view showing furniture with a flap top plate according to the same embodiment. An enlarged cross-sectional view taken along the line AA in FIG. 5 with a part omitted. An exploded perspective view showing a caster according to the same embodiment. An exploded perspective view showing a leg body and a top plate support mechanism according to the same embodiment. The perspective view which shows the operation interlocking means and the temporary release operation part which concerns on the same embodiment. An exploded perspective view showing a temporary release operation unit according to the same embodiment. An operation explanatory view according to the same embodiment. An operation explanatory view according to the same embodiment. An operation explanatory view according to the same embodiment. An operation explanatory view according to the same embodiment. An operation explanatory view according to the same embodiment. An enlarged plan sectional view of a main part of furniture with a flap top plate according to the same embodiment. The perspective view which shows an example of the installation mode of the furniture with a flap top plate which concerns on the same embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In this embodiment, as shown in FIGS. 1 to 18, the present invention is applied to a furniture T with a flap top plate, which is a so-called flap table.

As shown in FIGS. 1 to 6, the furniture T with a flap top plate has left and right paired legs 1A having casters 4 and 5 that can be selectively switched to a wheel locked state (L) or a wheel unlocked state (N). Using the top plate 2 which is supported by the legs 1A and 1B and can flap from the use posture (U) to the flip-up posture (F), and the flap operation of the top plate 2. The casters 4 and 5 are provided with left and right paired operation interlocking means 3A and 3B for switching the wheel locked state (L) or the wheel unlocked state (N).

Here, FIG. 1 is a perspective view showing the usage posture (U), FIG. 2 is a front view thereof, and FIG. 3 is an enlarged side view showing the usage posture (U). FIG. 4 is a perspective view showing the flip-up posture (F), FIG. 5 is a front view of the same, and FIG. 6 is an enlarged side view showing the flip-up posture (F). FIG. 7 is an enlarged cross-sectional view taken along the line AA in FIG. 5 with a part omitted. FIG. 8 is a perspective view showing the casters 4 and 5 in an exploded manner. FIG. 9 is a perspective view showing the leg body 1A and the top plate support mechanism 6A described later in an exploded manner. FIG. 10 is a perspective view showing an operation interlocking means 3A, a temporary release operation unit 7A described later, and a temporary release operation conversion mechanism 8A described later.

The left leg body 1A includes a base 11 extending back and forth and a leg support 12 erected on the base 11, and a first caster is provided at an end of the base 11 on the use edge x side. 4 is provided, and a second caster 5 is provided at the end on the side of the anti-use edge y.

As shown in FIGS. 7 and 9, the base 11 is, for example, made of die-cast aluminum and has a downwardly open channel shape, and the first and second casters 4 and 5 are mounted on both front and rear ends. A caster mounting portion 111 for the purpose is provided. Further, a mounting pedestal 112 for mounting the leg support 12 is provided in the middle portion in the front-rear direction of the base 11. A positioning convex portion 113 in which the lower end portion of the leg support 12 is fitted and positioned, a screw insertion hole 114 into which a mounting screw is inserted, and a vertically interlocking shaft 33 described later are inserted into the mounting pedestal 112. An insertion window 115 for allowing the screw to be inserted and a fitting recess 116 for attaching the bearing 35, which will be described later, are provided.

The leg support 12 has a pipe shape, and a bottom plate nut 120 is fixedly installed inside a portion near the lower end thereof. More specifically, the leg support 12 has a substantially pentagonal cross section including a front wall 121, a rear wall 122, an inner side wall 123, an outer wall 124, and an outer inclined wall 125. As shown in FIGS. 2 and 5, the leg support 12 is biased outward so that the outer surface of the outer wall 124, that is, the outer surface 12a of the leg support 12 is substantially flush with the outer surface 11a of the base 11. It is erected on the base 11 in a transferred state. Specifically, as shown in FIG. 9, the lower end portion of the leg support 12 is fitted onto the mounting base 112 of the base 11, and then inserted into the screw insertion hole 114 from the lower surface side of the base 11. The leg support 12 is mounted on the base 11 by screwing a screw (not shown) into the female screw hole 126 of the bottom plate nut 120 and tightening the screw.

The first caster 4 has an operating unit that receives an operating force, and by operating the operating unit, the first caster 4 selectively switches to the wheel locked state (L) or the wheel unlocked state (N). It is composed. That is, as shown in FIGS. 7 and 8, the caster 4 is mounted on the used edge x side of the base 11, that is, the front end side, and is a support fitted to the caster mounting portion 111 of the base 11. The body 41, the turn base 42 arranged in the support 41 and held so as to be horizontally swivel via the thrust bearing 48, and the shaft at a position deviated from the swivel center of the turn base 42 via the horizontal shaft 43. The worn wheel 44, the lock body 45 for engaging with the wheel 44 to realize the wheel locked state (L) or the wheel unlocked state (N), and the support 41 are held so as to be movable back and forth. It includes an operating portion 46, which is an operating portion, and a cam mechanism 47 that converts the front-rear movement of the operating portion 46 into an elevating operation of the lock body 45. More specifically, on the inner circumference of the rim portion 441 of the wheel 44, a plurality of engaging recesses 44a released toward the hub side are formed adjacent to each other in the circumferential direction. The lock body 45 is provided so that the lock claw 451 provided at the tip thereof is positioned inside the rim portion 441 so as to be able to move up and down. At the upward movement position (J), the lock claw 451 is placed in the engaging recess 44a. The wheel 44 is brought into the wheel locked state (L) by engaging with any of the above, while the lock claw 451 is disengaged from the engaging recess 44a at the descending position (K) to bring the wheel into the unlocked state (N). It has become. In the caster 4, the swivel lock claw 452 is projected from the upper surface of the base end portion of the lock body 45, and when the lock body 45 rises to the upward movement position (J), the swivel lock claw 452 Is engaged with the engaging recess 41a for turning lock provided on the lower surface of the top wall of the support 41, and the turning of the turn base 42 is also prohibited. The cam mechanism 47 includes a cam follower 471 projecting from the upper surface of the base end portion of the lock body 45, and a cam 472 formed on the lower surface of the actuating portion 46 located above the cam follower 471. is there. The cam 472 includes a deep groove portion 473 that allows the lock body 45 having the cam follower 471 to move upward, and a shallow groove portion 474 that pushes down the cam follower 471 and holds the lock body 45 in the lowering position (K). I have. In the first caster 4 described above, when the deep groove portion 473 is located on the use edge x side of the shallow groove portion 474 and the operating portion 46 is located at the most advanced position (Z), the lock body 45 The cam follower 471 is pressed by the shallow groove portion 474 of the cam 472, the lock body 45 is pushed down to the lowering position (K), the lock claw 451 is disengaged from the engaging recess of the wheel 44, and the wheel 44 is in a free state. That is, the wheel is in the unlocked state (N). On the other hand, when the operating portion 46 is located at the rearmost retracted position (B), the cam follower 471 of the lock body 45 corresponds to the deep groove portion 473 of the cam, and the lock body 45 is moved upward by the urging force of the spring S1. Then, the lock claw 451 engages with any of the engaging recesses 44a of the wheel 44, and the rotation of the wheel 44 is prohibited. That is, the wheel is locked (L). Reference numeral 49 is a cover that covers the opening at the lower end of the turn base 42.

The second caster 5 has an operating unit that receives an operating force, and by operating the operating unit, the second caster 5 selectively switches to the wheel locked state (L) or the wheel unlocked state (N). It is composed. That is, as shown in FIG. 7, the caster 5 is mounted on the anti-use edge y side, that is, the rear side of the base 11, and the support 51 fitted to the caster mounting portion 111 of the base 11. The turn base 52 is arranged in the support 51 and held so as to be horizontally swivel via the thrust bearing 58, and is pivotally mounted via the horizontal shaft 53 at a position deviated from the swivel center of the turn base 52. The wheel 54, the lock body 55 for engaging with the wheel 54 to realize the wheel locked state (L) or the wheel unlocked state (N), and the operation held by the support 51 so as to be movable back and forth. It is provided with an operating portion 56, which is a portion, and a cam mechanism 57 that converts the front-rear movement of the operating portion 56 into an elevating operation of the lock body 55. More specifically, on the inner circumference of the rim portion 541 of the wheel 54, a plurality of engaging recesses 54a released toward the hub side are formed adjacent to each other in the circumferential direction. The lock body 55 is provided so that the lock claw 551 provided at the tip thereof is positioned inside the rim portion 541 and can be raised and lowered. At the upward movement position (J), the lock claw 551 is located in the engaging recess. The wheel 54 is brought into the wheel locked state (L) by engaging with any of them, while the lock claw 551 is disengaged from the engaging recess and put into the wheel unlocked state (N) at the descending position (K). ing. The cam mechanism 57 includes a cam follower 571 projecting from the upper surface of the base end portion of the lock body 55, and a cam 57 2 formed on the lower surface of the operating portion 56 located above the cam follower 571. is there. The cam 57 2 has a deep groove portion 573 that allows the lock body 55 having the cam follower 571 to move upward, and a shallow groove portion 574 that pushes the cam follower 571 downward to hold the lock body 55 in the lowering position (K). I have. Also in the second caster 5 described above, when the deep groove portion 573 is located on the use edge x side of the shallow groove portion 574 and the operating portion 56 is located at the most advanced position (Z), the lock body 55 The cam follower 571 is pressed against the shallow groove portion 574 of the cam 572, the lock body 55 is pushed down to the lowering position (K), the lock claw 551 is disengaged from the engaging recess 54a of the wheel 54, and the wheel 54 is in a free state. That is, the wheel is in the unlocked state (N). On the other hand, when the operating portion 56 is located at the rearmost retracted position (B), the cam follower 571 of the lock body 55 corresponds to the deep groove portion 573 of the cam 572, and the lock body 55 is raised by the urging force of the spring S1. The lock claw 551 moves to engage with any of the engaging recesses 54a of the wheel 54, and the rotation of the wheel 54 is prohibited. That is, the wheel is locked (L). Reference numeral 59 is a cover that covers the opening at the lower end of the turn base 52.

Here, the operating portion 46 of the first caster 4 and the operating portion 56 of the second caster 5 are formed by a caster interlocking member 13 housed in the base 11 as shown in FIGS. 7 and 10. The caster interlocking member 13 is connected, and the casters 4 and 5 are in the wheel locked state (L) in a state where the caster interlocking member 13 is moved to the last retracted position (B) together with the both operating portions 46 and 56, and the caster interlocking member 13 The casters 4 and 5 are configured to be in the wheel unlocked state (N) in a state where the wheels are moved to the most advanced position (Z) together with the operating portions 46 and 56. In this embodiment, as shown by imaginary lines in FIGS. 9 and 10, a tension spring S2 is provided between the caster interlocking member 13 and the protrusion 11x provided on the base 11, and the tension spring S2 is provided. The caster interlocking member 13 can self-return to the last retracted position (B) by the urging force of the spring S2. That is, in a state where no operating force acts on the caster interlocking member 13, the caster interlocking member 13 automatically retracts and the first and second casters 4 and 5 are maintained in the wheel locked state (L). Is set to.

The right leg body 1B and the left leg body 1A have a symmetrical shape. Then, the top plate 2 is supported on these both legs 1A and 1B via the top plate support mechanisms 6A and 6B so that the top plate 2 can be flapped.

The top plate support mechanism 6A on the left has a normal configuration as shown in FIG. 9, and is axially supported by the shaft plate 61 attached to the leg body 1A and the shaft plate 61 via a spindle 67. A top plate receiver 62 that receives the top plate 2 on the upper surface and a lock claw 63 for selectively locking the top plate receiver 62 to the usage posture (U) and the flip-up posture (F) are arranged. It will be.

As shown in FIG. 9, the shaft plate 61 has a mounting portion 65 attached to the inner side surface of the leg body 1A using screws, and a top plate receiver 62 extending upward from the mounting portion 65 as a main shaft 67. It is provided with a head portion 66 that supports the shaft via the above. The head portion 66 engages with the lock claw 63 to lock the top plate 2 to the working posture (U), and engages with the first locking portion 601 and the lock claw 63 to flip up the top plate 2. It is provided with a claw holder 60 having a second locking portion 602 that locks to the posture (F).

As shown in FIG. 9, the top plate receiver 62 is a pair of an upper plate 621 attached to the lower surface 2a of the top plate 2 and a pair extending from both side edges of the upper plate 621 and located on both sides of the head portion 66. It is provided with side plates 622 and 623 forming the above.

As shown in FIG. 9, the lock claw 63 is, for example, a sickle-shaped one having a bent portion 631 on the tip end side, and the drive shaft 633 is integrally rotatably fitted to the base end portion 632. The outer end 63a of the drive shaft 633 projects outward from one side plate 622, and the flap operation operation unit 630 is attached to the outer end 63a. The flap operation operation unit 630 is a lever type, unlike the temporary release operation unit 7, which will be described later. The lock claw 63 is rotationally urged in the direction of the claw receiver 60 of the shaft plate 61 by a torsion coil spring or the like (not shown), and in the use posture (U), the bent portion 631 of the lock claw 63 is the claw receiver. It is engaged with the first locking portion 601 of the 60, and in the flip-up posture (F), the tip of the bent portion 631 is engaged with the second locking portion 602 of the claw holder 60.

The top plate support mechanism 6B on the right has a symmetrical shape with the top plate support machine 6A on the left described above, and the same or corresponding parts are designated by the same reference numerals and the description thereof will be omitted.

The shaft plates 61 in the left and right top plate support mechanisms 6A and 6B are rigidly connected via a connecting beam 91. Further, the drive shafts 633 of the left and right top plate support mechanisms 6A and 6B are connected to each other so as to be interlocked with each other via the flap operation operation interlocking beam 92.

As shown in FIGS. 1 to 6, the top plate 2 has an elongated rectangular shape in the left-right direction, and has the same structure as a normal wooden top plate, for example. Embedded nuts (not shown) for mounting the top plate receiver 62 are provided on both left and right ends of the lower surface 2a of the top plate 2. A fixed type link stay 98, which is a support member of the curtain plate M described later, is attached to the anti-use edge y side of the lower surface 2a of the top plate 2.

As shown in FIGS. 3, 5 and 6, the fixed type link stay 98 has a base end portion 981 attached to the lower surface 2a of the top plate 2 by using a bolt (not shown), and the tip end portion 983 thereof. Is pivotally attached to the mounting pedestal 63 of the curtain plate 6, which will be described later.

In the motion interlocking means 3A provided on the left leg body 1A, when the top plate 2 is in the usage posture (U), the casters 4 and 5 are in the wheel locked state (L), and the top plate 2 is moved. The casters 4 and 5 are configured to switch to the wheel unlocked state (N) when the flip-up posture (F) is set. More specifically, the motion interlocking means 3 converts the flap motion of the top plate 2 into a front-rear motion of the caster interlocking member 13 to lock the first and second casters 4 and 5 into a wheel locked state (L). And the wheel unlocked state (N) are selectively switched. Specifically, as shown in FIG. 10, the operation interlocking means 3 has an interlocking drive shaft 31 rotatably mounted in the axial core hole of the spindle 67 and an outer side of the interlocking drive shaft 31. An interlocking cam 32 that is integrally rotatable at the end and rotates by a required angle according to the flap operation of the top plate 2 with respect to the leg bodies 1A and 1B, and the rotation of the interlocking cam 32 to the leg base 11 side. It includes a vertical interlocking shaft 33 that is transmitted as an elevating motion, and an motion conversion mechanism 34 that converts the elevating motion of the vertical interlocking shaft 33 into a front-rear motion of the caster interlocking member 13. Then, the casters 4 and 5 can be selectively switched between the wheel locked state (L) and the wheel unlocked state (N) by rotating the interlocking cam 32.

The interlocking cam 32, which is a component of the operation interlocking means 3A, is provided continuously on the arcuate cam surface 32a in contact with the lower surface 2a of the top plate 2 and the arcuate cam surface 32a, and is provided on the lower surface 2a of the top plate 2. It is provided with a flat cam surface 32b that rotates by a required angle together with the top plate 2 when it comes into contact with the top plate 2. The rotation center of the interlocking cam 32 coincides with the rotation center of the top plate 2 which is the axis of the main shaft 67, and the lower surface 2a of the top plate 2 abuts on the planar cam surface 32b of the interlocking cam 32. In this state, the interlocking cam 32 and the top plate 2 can rotate integrally around the axis. On the other hand, in a state where the lower surface 2a of the top plate 2 is in contact with the arcuate cam surface 32a, the flap operation of the top plate 2 and the rotation operation of the interlocking cam 32 are separated. A connecting hole 32x for pivotally attaching the upper end portion of the vertical interlocking shaft 33 is provided at a portion of the interlocking cam 32 displaced from the axial center. That is, the vertically interlocking shaft 33 is housed in the leg support 12 so as to be vertically movable, and the upper end portion 33a thereof is bent in the horizontal direction. By engaging the bent upper end portion 33a with the connecting hole 32x of the interlocking cam 32, the rotation of the interlocking cam 32 is converted into an elevating operation of the vertical interlocking shaft 33.

As shown in FIGS. 10, 12, and 13, the motion conversion mechanism 34 that converts the elevating motion of the vertically interlocking shaft 33 into the front-rear motion of the caster interlocking member 13 is the leg body 1A of the top plate 2. The relative motion with respect to 1B is mechanically transmitted to the actuating portions 46 and 56 of the casters 4 and 5, and the bearing 35 fixed to the legs 1A and 1B and the hinge support shaft 30 to the bearing 35 are interposed. A caster interlocking hinge 36 pivotally supported by the caster, a connecting pin 37 for pivotally attaching the lower end 33b of the vertical interlocking shaft 33 to the caster interlocking hinge 36, and a drive fixed to the rotating end of the caster interlocking hinge 36. It includes a pin 38 and a cam receiver 39 that transmits the movement of the drive pin 38 to the caster interlocking member 13. That is, when the vertically interlocking shaft 33 moves up and down, the caster interlocking hinge 36 connected to the vertically interlocking shaft 33 rotates around the hinge support shaft 30, and the drive pin 38 of the caster interlocking hinge 36 rotates in the front-rear direction. It moves, and the rotational power of the drive pin 38 is transmitted to the caster interlocking member 13 via the cam receiver 39, and the caster interlocking member 13 moves back and forth between the last retracted position (B) and the most advanced position (Z). It is possible to move forward and backward in the direction. Here, the bearing 35 is sandwiched between the joint portion between the leg support 12 and the base 11 and fixed to the leg body 1A. More specifically, it includes a pair of side walls 351 to which the upper ends are connected to hold the hinge support shaft 30, and a flange portion 352 extending outward from the upper ends of the side wall 351s thereof. The collar portion 352 is fitted into the fitting recess 116 provided in the mounting base 112 of the base 11, and then the base 11 and the leg support 12 are tightly coupled so as to be fixed to the leg body 1A. It has become.

The motion interlocking means 3B provided on the right leg body 1B has a symmetrical shape with the motion interlocking means 3A provided on the left leg body 1A described above, and is the same in the same or corresponding portions. The description will be omitted with reference to the reference. The interlocking drive shaft 31 of the motion interlocking means 3A provided on the left leg 1A and the interlocking drive shaft 31 of the motion interlocking means 3B provided on the right leg 1B are caster lock operation interlocking beams. It is connected so as to be synchronously rotatable by 93.

Further, on the top plate 2 of the furniture T with the flap top plate described above, the temporary release operation unit 7A for temporarily releasing the wheel locked state (L) to the wheel unlocked state (N), 7B is provided. The temporary release operation units 7A and 7B are of a button type unlike the flap operation operation unit 630.

The temporary release operation portion 7A provided on the left side is provided in the vicinity of the edge on the lower surface of the top plate 2, and more specifically, in the vicinity of the corner portion where the used edge x and the side edge z intersect.

More specifically, as shown in FIGS. 10 and 11, the temporary release operation unit 7A includes an operation button 71 that receives an operation force and a housing 72 that holds the operation button 71 so as to be able to move up and down. The housing 72 is fastened to the lower surface 2a of the top plate 2 using screws or the like (not shown).

Further, between the temporary release operation unit 7A and the operation interlocking means 3A, a temporary release operation conversion mechanism 8A that converts the raising / lowering operation of the operation button 71 into the rotational operation of the interlocking cam 32 is provided. ing. As shown in FIG. 11, the temporary release motion conversion mechanism 8A has a slider 81 slidably housed in the housing 72 in the front-rear direction, and front and rear intervening between the slider 81 and the interlocking cam 32. It is provided with an interlocking shaft 82. The slider 81 is provided with an inclined cam surface 81a on the use edge x side so that both left and right ends can move forward and backward in the front-rear direction in relation to the guide step portion 721 provided on the inner side wall 72a of the housing 72. ing. Then, when the operation button 71 is pressed and moved upward, the inclined cam surface 81a is urged by the upper edge of the operation button 71 so that the slider 81 slides toward the interlocking cam 32. It has become. As described above, the front-rear interlocking shaft 82 is interposed between the slider 81 and the interlocking shaft receiver 32c provided on the outer peripheral portion of the interlocking cam 32, and the slider 81 is directed toward the interlocking cam 32. When the cam 32 is slid, the interlocking cam 32 is urged by the front-rear interlocking shaft 82 to rotate. A protrusion 81b is formed on the used edge x side at the center of the slider 81 in the left-right direction, and a compression spring (not shown) for pressing the slider 81 in the interlocking cam 32 direction between the protrusion 81b and the housing 72. Is provided. A concave groove 71a for avoiding interference with the protrusion 81b and the compression spring is formed on the upper surface of the operation button 71. In the present embodiment, the temporary release operation unit 7A and the temporary release operation conversion mechanism 8A rotate the interlocking cam 32 by an operation different from the flap operation of the top plate 2 to rotate the casters 4 and 5 to the above. It is also possible to switch from the wheel locked state (N) to the wheel unlocked state (L).

The temporary release operation unit 7B and the temporary release operation conversion mechanism 8B provided on the right side have a symmetrical shape with the temporary release operation unit 7A and the temporary release operation conversion mechanism 8A provided on the left side described above. The same or corresponding parts are designated by the same reference numerals and the description thereof will be omitted.

Further, in the present embodiment, a curtain plate arranged under the top plate 2 and hanging from the top plate 2 in the usage posture (U) and in contact with or close to the leg support 12 in the flip-up posture (F). It is equipped with M. As shown in FIGS. 1 to 6, the curtain plate M is formed by attaching caps M2 made of a soft material such as resin to the left and right sides of a hollow curtain plate main body M1 made of sheet metal. A first mounting pedestal M3 is provided near the upper edge at both ends, and a second mounting pedestal M4 is provided near the lower edge at both left and right ends, and the first mounting pedestal is fixed to the top plate 2. The tip 913 of the link stay 98 is pivotally attached to the first mounting pedestal M3, and the tip 993 of the second link stay 99 pivotally attached to the legs 1A and 1B is the second. It is pivotally attached to the mounting base M4. Further, as shown in FIG. 17, in the flip-up posture (F), the cap M2 engages with the cap M2 in close proximity to or in contact with the anti-use end surface 12b and the outer surface 12a of the both leg columns 12, respectively. It has a matching engaging portion Ma.

Next, the operation of this embodiment will be described.

In this furniture T with a flap top plate, the use posture (U) in which the top plate 2 is substantially horizontal and the top plate 2 stand up by operating the lever-type flap operation operation unit 630, as in the conventional furniture T. The flip-up posture (F) can be selectively taken. When the top plate 2 is in the working posture (U), the caster interlocking member 13 is moved to the final retracted position (B) by the force of the spring S2 as shown in (a) of FIG. 14 and (a) of FIG. It is held, and the first and second casters 4 and 5 are in the wheel locked state (L). In other words, the left and right leg bodies 1A and 1B are maintained in a braking state, respectively. When the top plate 2 is flapped from this state, the lower surface 2a of the top plate 2 comes into contact with the flat cam surface 32b of the interlocking cam 32 during the flap operation, and then the top plate 2 and the interlocking cam 32 Are united and rotate around the axis to reach the flip-up posture (F) shown in FIG. At that time, the interlocking cam 32 rotates counterclockwise in the figure together with the top plate 2, and the vertically interlocking shaft 33 rises accordingly. As a result, the caster interlocking hinge 36 rotates around the hinge support shaft 30, and the drive pin 38 of the caster interlocking hinge 36 rotates forward. When the drive pin 38 rotates forward, the movement of the drive pin 38 is transmitted to the caster interlocking member 13 via the cam receiver 39, and the caster interlocking member 13 resists the urging force of the spring and is in the final retracted position ( It slides from B) to the most advanced position (Z). By this movement, the operating portions 46 and 56 of the first and second casters 4 and 5 move forward, and the lock bodies 45 and 55 of the casters 4 and 5 descend to switch to the wheel unlocked state (N). Therefore, the legs 1A and 1B, which were in the braking state, are automatically put into the non-braking state simply by flipping up the top plate 2, and can be freely moved. When the top plate 2 is returned from the flip-up posture (F) to the original usage posture (U), an operation opposite to the operation described above is performed, and both the legs 1A and 1B are in the braking state again.

In such a usage state, when it is desired to temporarily release the braking state of the legs 1A and 1B without flipping up the top plate 2, the operation buttons 71 of the temporary release operation units 7A and 7B provided on the top plate 2 are provided. May be pressed upward. Since this pressing operation can be performed at the same time by grasping the used edge x or the side edge z of the top plate 2, the unlocking operation and the operation of grasping the edge of the top plate 2 and moving the whole are continuously performed. It can be carried out. That is, when the operation button 71 is pressed upward, the upper end edge of the operation button 71 slides into contact with the inclined cam surface 81a of the slider 81, and the ascending operation of the operation button 71 causes the slider 81 to slide in the counter-use edge y direction. Will be converted. When the slider 81 slides in the counterclockwise edge y direction, this operation is transmitted to the outer circumference of the interlocking cam 32 via the front-rear interlocking shaft 82, and the interlocking cam 32 rotates counterclockwise in FIG. 14B. Move. As a result, even though the top plate 2 is in the use posture (U), the vertical interlocking shaft 33 moves upward due to the rotation of the interlocking cam 32, the caster interlocking member 13 advances, and the casters 4 and 5 move forward. The wheel locked state (L) is switched to the wheel unlocked state (N). Since this switched state is maintained while the operation button 71 is pressed, the entire furniture T with the flap top plate is temporarily held while pressing the operation button 71 while holding the top plate 2. It becomes possible to move to.

In this embodiment, since the temporary release operation portions 7A and 7B are provided near the corner portion where the used edge x and the side edge z of the top plate 2 intersect, the used edge x side is also provided. The above-mentioned operation can be performed reasonably from the side edge z side as well. Moreover, in this embodiment, such temporary release operation units 7A and 7B are provided on both the left and right sides of the top plate 2, and can be integrally rotated with the left and right interlocking cams 32 engaged with the front-rear interlocking shaft 82. Since the interlocking drive shaft 31 is connected by the caster lock operation interlocking beam 93 as described above, the wheel lock state (L) is temporarily set by applying an operation to either the left or right temporary release operation unit 7A or 7B. Can be released as a target.

As described above, in the present embodiment, the flap operation of the top plate 2 can be used to switch the wheels 44 and 54 of the casters 4 and 5 to the locked state (L) or the unlocked state (N), in other words. Then, the legs 1A and 1B can be automatically switched to the braking state or the non-braking state, so that a series of operations can be simplified. Therefore, the work man-hours for installing and removing the furniture T with the flap top plate can be reduced, and the burden on the operator can be reduced. Moreover, since the braking / non-braking 1A and 1B of the legs are performed by switching the wheels 44 and 54 of the casters 4 and 5 to the locked state (L) or the unlocked state (N), for example, the casters are placed on the floor. The switching operation can be performed with a relatively small force as compared with the case where braking or non-braking is switched by ascending or landing on a surface. Therefore, it is possible to link the flap operation and the braking / non-braking switching operation without adversely affecting the flap operation of the top plate 2.

In addition, in the present embodiment, as shown in FIG. 18, when a plurality of tables T are arranged adjacent to each other in the lateral direction to form a table system, the outer surfaces 12a of the adjacent leg columns 12 are in contact with each other. Since the two leg columns 12a are in contact with each other or are close to each other and the two leg columns 12a have an appearance as if they were one column, the appearance when a plurality of tables T are arranged adjacent to each other in the lateral direction is obtained. The complexity can be eliminated. Further, according to such a configuration, the internal dimension between the left and right leg columns 12 can be set as large as possible, which is useful for substantially expanding the lower limb space.

The present invention is not limited to the embodiments described above, and the flap operation of the top plate is mechanically transmitted to the caster via flood control or the like to switch the locked state, or the movement of the top plate is detected by a sensor or the like. It may be such that it is converted into an electric signal and an actuator or the like is operated based on the electric signal to switch the locked state of the caster. However, as described above, if the operation interlocking means mechanically transmits the flap operation of the top plate to the operation unit, which is the operation unit of the caster, via the link mechanism, the mechanism is simplified and the operation is performed. Reliability can be increased.

Further, according to the present invention, since the braking state of the leg body can be released without returning to the flip-up posture, the furniture can be moved even in the used state in which the article is placed on the top plate. There is, and convenience can be enhanced. Further, if the flap operation operation unit is a general lever type, while the temporary release operation unit is a button type as described above, the temporary release operation in the braking state and the flap operation are performed. It is more preferable in that it is difficult to confuse with the operation for performing the above.

Further, the present invention is not limited to the so-called flap table, and can be applied to all furniture having a top plate capable of flap operation from the use posture to the flip-up posture. When applied to a flap table, it is desirable to lock the wheels in the usage posture as in the above-described embodiment from the viewpoint of actual use.

In addition, any configuration of the operation interlocking means for switching the caster to the wheel locked state or the wheel unlocked state by utilizing the flap operation of the top plate may be adopted. However, according to the configuration according to the above-described embodiment, the temporary release operation unit different from the flap operation of the top plate is made easy to adjust the width of the operation stroke of the operation unit of the caster accompanying the flap operation of the top plate. By making the interlocking cam rotatable by the operation of, the caster can be in the wheel unlocked state even when the top plate is in the operating posture. Further, the interlocking cam comes into contact with the lower surface of the top plate to rotate the interlocking cam together with the top plate by the required angle, and the flap operation of the top plate and the interlocking cam. If the cam surface is provided with an arcuate cam surface for separating the rotation operation of the caster, the width of the operation stroke of the operation unit of the caster described above can be easily adjusted.

In addition, various changes may be made as long as the gist of the present invention is not impaired.

T ... Furniture with flap top plate 1A, 1B ... Leg body 2 ... Top plate 3A, 3B ... Movement interlocking means 4, 5 ... Caster (L) ... Wheel locked state (N) ... Wheel unlocked state (U) ... Usage posture (F) ... flip-up posture

Claims (8)

A leg body having casters that can be selectively switched to a wheel locked state or a wheel unlocked state, a top plate that is supported by the leg body and capable of flap operation from a use posture to a flip-up posture, and a flap of this top plate. The caster is provided with an operation interlocking means for switching the caster to the wheel locked state or the wheel unlocked state by utilizing the motion, and the top plate temporarily releases the wheel locked state to unlock the wheel. It is a furniture with a flap top plate that has an operation part for temporary release to make it in a state.
The leg body is provided with a base having casters attached to both front and rear ends, and a caster interlocking member for switching both casters to a wheel locked state or a wheel unlocked state by moving in the front-rear direction is provided in the base. It is arranged and
Both casters are configured to switch to a wheel locked state or a wheel unlocked state by moving the operating portion in the front-rear direction, and both operating portions are connected by the caster interlocking member. ,
Furniture with a flap top plate that is configured so that both casters are in a wheel unlocked state when the caster interlocking member is moved to the most advanced position together with the both actuating parts. The base has caster mounting portions at both front and rear ends, and the caster interlocking member is housed in the base together with both operating portions in a state where the casters are mounted on the caster mounting portions. The furniture with a flap top plate according to claim 1. A leg body having casters that can be selectively switched to a wheel locked state or a wheel unlocked state, a top plate that is supported by the leg body and capable of flap operation from a use posture to a flip-up posture, and a flap of this top plate. The caster is provided with an operation interlocking means for switching the caster to the wheel locked state or the wheel unlocked state by utilizing the motion, and the top plate temporarily releases the wheel locked state to unlock the wheel. It is a furniture with a flap top plate that has an operation part for temporary release to make it in a state.
The leg body is provided with a base having casters attached to both front and rear ends, and a caster interlocking member for switching both casters to a wheel locked state or a wheel unlocked state by moving in the front-rear direction is provided in the base. It is arranged and
Furniture with a flap top plate in which a tension spring that helps the casters automatically return to the wheel locked state is provided between the caster interlocking member and the base. The furniture with a flap top plate according to claim 3, wherein both casters are set to be in a wheel unlocked state in a state where the caster interlocking member is moved to the most advanced position while resisting the urging force of the tension spring. The flap top plate according to claim 3 or 4, wherein the operation interlocking means mechanically transmits the flap operation of the top plate to the caster interlocking member connecting both operating portions of both casters via a link mechanism. Furniture with furniture. The furniture with a flap top plate according to claim 1, 2, 3, 4 or 5, wherein the temporary release operation unit is provided near the edge on the lower surface of the top plate. When the temporary release operation unit is operated, the caster is in the wheel unlocked state, and when the operation on the temporary release operation unit is stopped, the caster is automatically returned to the wheel locked state. The furniture with a flap top plate according to claim 1, 2, 3, 4, 5 or 6 . Claim 1 is configured such that the caster interlocking member advances and the caster switches from the wheel locked state to the wheel unlocked state by operating the temporary release operation unit while the top plate is in the operating posture. Furniture with flap top plate as described .

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