JP2016214611A - Furniture with top board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a topped furniture item with suppressed increase in cost and weight that exerts a big braking force so as to be prevented from moving in use, while easily releasing restriction of movement when moved.SOLUTION: A furniture item with a top board comprises: casters 26 and 27 that are provided at front and rear ends of a base part 21 of a supporting leg 20; a front stopper member 51 that is fixed to the front end of the base part 21 in contact with a floor surface F; a rear stopper member 52 that is provided at the rear end of the base part 21 and can come in contact with the floor surface F; and a driving mechanism that advances and retracts the rear stopper member 52 to come in and out of contact with the floor surface F. By allowing the rear stopper 52 to retract above the caster 27 so as to come out of contact with the floor surface F, the base part 21 is inclined such that the rear end is lower than the front end, the casters 26 and 27 come in contact with the floor surface F, and the front stopper member 51 comes upward out of contact with the floor surface F.SELECTED DRAWING: Figure 11

Description

  The present invention relates to a tabletop fixture.

  In various facilities such as offices, public facilities, educational facilities, commercial facilities, hospitals and the like, so-called table-top fixtures such as table devices are widely used for various purposes including meetings and meetings. Some types of such fixtures with a top plate have casters so that the arrangement can be easily changed according to the user's request.

  As such a fixture with a top plate, there is provided a movement restraining mechanism that restricts the movement of the fixture in the state of use, and releases the constraint and allows the movement by a caster to change the arrangement of the fixture. Is desirable.

  In Patent Document 1, as a movement restraining mechanism, a lifting rod that moves up and down in conjunction with the rotation of the top plate and a movement of the table device by a caster by restraining (braking) by grounding to the floor, The structure provided with the grounding body provided in the both ends of the leg member and the link arm which moves a grounding body up and down by raising / lowering of a raising / lowering rod, and extends along a leg member is disclosed.

  Patent Document 2 discloses a configuration in which casters are provided before and after the legs of the table device, and one of the casters is provided with a stopper that protrudes downward.

Japanese Patent No. 2721588 Japanese Patent No. 2856351

In the configuration disclosed in Patent Document 1, the link arm for moving the grounding body provided at both ends of the leg member up and down is configured by assembling a plurality of link members. Therefore, there is a problem that the structure is complicated, the number of parts increases, and the number of assembly steps increases accordingly.
Also, in order to constrain the movement of the table device by grounding the grounding body, it is necessary to lift the entire table device after the grounding body is grounded, so that the casters are separated upward from the floor surface. It requires a lot of power.

Further, in the configuration disclosed in Patent Document 2, when the one caster is separated upward from the floor surface after the grounding body is grounded, the other caster remains grounded on the floor surface. Less force is required for operation.
However, the grounding body is provided only on one caster, and the other caster is grounded on the floor surface, so that no braking force can be obtained.

  The purpose of the present invention made there is to easily release the restraint of movement when moving, while exhibiting a large braking force with a small operating force so that the fixture with the top plate does not move in use, and the number of parts It is to provide a fixture with a top plate that can suppress the above.

The present invention employs the following means in order to solve the above problems.
A tabletop fixture according to the present invention includes a top plate having an upper surface on which an article can be placed, a first grounding portion that supports the top plate, and is provided at intervals in a direction along the floor surface. A support leg having two grounding portions, a first caster member provided in the first grounding portion, a second caster member provided in the second grounding portion, and fixed to the first grounding portion, A fixed ground member that is grounded to the floor surface, a movable ground member that is provided on the second ground portion and can be grounded to the floor surface, and a state in which the movable ground member is grounded to the floor surface and a separated state A drive mechanism for moving the movable grounding member back and forth, and retracting the movable grounding member above the second caster member so as to be separated from the floor surface, thereby causing the second grounding unit to be retracted relative to the first grounding unit. Tilted so that the first caster member and Together with the second caster member is grounded to the floor surface, the fixed ground member, characterized in that the spaced upwardly from the floor surface.

According to such a configuration, in a use state in which a user or a fixture with a top plate is used, the movable ground member protrudes downward from the second caster member and is grounded to the floor surface. Thereby, the fixed grounding member and the movable grounding member are grounded to the floor surface, and the first caster member and the second caster member are separated upward from the floor surface. Thereby, a big braking force can be obtained.
From this state, when the drive mechanism is operated and the movable grounding member is retracted above the second caster member, the second caster member is grounded to the floor surface, and the second grounding part is in contact with the first grounding part. By tilting so as to be lowered, the fixed grounding member is separated upward from the floor surface, and the first caster member is grounded to the floor surface. Thereby, a 1st caster member and a 2nd caster member are earth | grounded on a floor surface, and a fixture with a top plate can run and move on a floor surface.
When operating the movable grounding member, the fixed grounding member remains grounded, and the movable grounding member may be retracted upward while supporting the load of the fixture with the top plate on the fixed grounding member. Less is enough.
Furthermore, according to such a configuration, the number of parts can be reduced as compared with the case where the drive mechanism is configured by a large number of link members. Moreover, since it has a big braking force as mentioned above, what is necessary is just to set it as the structure which can move one grounding member among two grounding members. Therefore, since only one drive mechanism needs to be provided, the number of parts can be further reduced.

Further, the tabletop fixture according to the present invention is the above-mentioned tabletop fixture with a gap between the second caster member and the floor surface in a state where the fixed ground member and the movable ground member are grounded to the floor surface. However, it may be larger than the gap between the first caster member and the floor surface.
According to such a configuration, when the movable grounding member is retracted above the second caster member and the second caster member is grounded to the floor surface, the fixed grounding member is reliably separated upward from the floor surface. Thus, the first caster member can be grounded to the floor surface.

Further, the tabletop fixture according to the present invention is the appliance with the topplate, wherein the movable grounding member is provided on a swing member having one end supported around a horizontal axis, and the fixed grounding member and the movable grounding member are connected to each other. The grounding surface of the fixed grounding member and the grounding surface of the movable grounding member may be formed so as to be parallel to the floor surface while being grounded to the floor surface.
According to such a configuration, the ground plane of the fixed ground member and the ground plane of the movable ground member are in contact with the floor surface in the use state of the fixture with the top plate in which the fixed ground member and the movable ground member are grounded to the floor surface. Can be brought into surface contact with each other to obtain a large braking force.

Moreover, the fixture with a top plate according to the present invention is the fixture with a top plate, wherein the fixed grounding member and the movable grounding member are connected to the first grounding portion and the second caster member with respect to the first caster member and the second caster member. You may make it arrange | position outside in the direction which two grounding parts space apart.
According to such a configuration, the stability in a state where the fixed grounding member and the movable grounding member are grounded can be increased.

Further, the top plate-equipped fixture according to the present invention further includes a base portion provided to extend along the floor surface in the top plate-equipped fixture, wherein the first grounding portion is provided on one end side of the base portion, A second grounding portion may be provided on the other end side of the base portion.
According to such a configuration, since the first grounding portion and the second grounding portion are provided on the common base portion, errors in the installation angle and the like are unlikely to occur.

Moreover, the fixture with a top plate which concerns on this invention WHEREIN: In the said fixture with a top plate, the upper surface of the said base part may be formed so that said 1st grounding part may become low with respect to said 2nd grounding part. .
According to such a structure, it becomes difficult for the user's leg | foot of the fixture with a top plate to interfere with a base part.

  According to the fixture with a top plate according to the present invention, in the state of use, while exhibiting a large braking force with a small operating force so that the fixture with the top plate does not move, when moving it, the movement restriction is easily released, It is possible to reduce the number of parts.

It is a perspective view which shows the whole structure of the tabletop fixture (desk apparatus) which concerns on one Embodiment of this invention. It is a sectional side view of the desk device. It is a sectional side view which shows the structure of the upper part of the said desk apparatus. It is side sectional drawing which shows the structure of the rear-end part of the support leg of the said desk apparatus. It is a perspective view which shows the structure of the drive mechanism of the rear part stopper member provided in the rear-end part of the said support leg. It is a figure which shows the positional relationship of the guide shaft formed in the said drive mechanism, and the slide shaft provided in the connection member. It is a perspective view of the cable guide provided in the upper part of a support leg. It is the figure which looked at the cable support member provided above the support leg from diagonally downward. It is a top view which shows the structure of a 1st cable operation member. It is a schematic diagram which shows the state which the front part stopper member and the rear part stopper member grounded in the use condition. It is a schematic diagram which shows the state which spaced apart the rear part stopper member from the floor surface and the front and back casters grounded.

  Hereinafter, with reference to an accompanying drawing, an embodiment of a fixture with a top board concerning the present invention is described. However, the present invention is not limited only to this embodiment.

FIG. 1 is a perspective view showing an overall configuration of a tabletop fixture (desk device) according to an embodiment of the present invention. FIG. 2 is a sectional side view of the desk device. FIG. 3 is a side sectional view showing a configuration of an upper portion of the desk device. FIG. 4 is a side sectional view showing the configuration of the rear end portion of the support leg of the desk device. FIG. 5 is a perspective view showing a configuration of a drive mechanism for a rear stopper member provided at the rear end of the support leg.
In the following description, the floor F side on which the table device 10 is installed is “downward”, the opposite direction is “upward”, the side facing the table device 10 is “front”, and the opposite side is “ The direction that is orthogonal to the direction connecting the front and the rear in the horizontal plane is referred to as the “width direction” as appropriate.

  As shown in FIG. 1, the table device (top plate-mounted fixture) 10 has a pair of support legs 20 installed on the floor surface F and extending in the vertical direction, and an upper surface 30f on which an article can be placed. The top plate 30 having a rectangular shape in plan view, for example, supported on the upper end of the support leg 20, and the curtain plate 15 positioned below the top plate 30 on the back side of the table apparatus 10 and closing the space between the support legs 20. And.

The support legs 20 are provided at both ends of the top plate 30 in the width direction.
In the present invention, the support legs 20 are not limited to two pairs. Depending on the size and shape of the top plate 30, only one or three or more support legs 20 may be provided. it can.

Each support leg 20 includes a base portion 21 installed on the floor surface F, and a hollow columnar column portion 23 that extends upward from the base portion 21 and can stably support the top plate 30 from below. . In this embodiment, the support | pillar part 23 is standingly arranged so that it may extend diagonally forward from the rear-end part 21r of the base part 21. FIG.
Further, the support pillars 23, 23 of the pair of support legs 20, 20 are integrally connected by a connecting rod 23 j extending in the width direction of the top plate 30.

As shown in FIGS. 2 and 3, a plate-like support plate 31 is provided at the upper end of the support column 23 of each support leg 20. Both ends of a shaft 32 extending in the width direction of the top plate 30 are supported by the support plate 31 so as to be rotatable with respect to the shaft 32.
Support brackets 33 extending in the front-rear direction are fixed to the lower surface of the top plate 30 on both sides in the width direction. A support plate 31 is attached to the support bracket 33. Thereby, the top plate 30 can be rotated around the shaft 32 together with the support bracket 33.

As shown in FIG. 1, a lock lever 34 is provided on a side surface 33 a of the support bracket 33 that faces outward in the width direction of the top plate 30. The lock lever 34 is provided to be rotatable about a rotation shaft 34 s (see FIG. 3) that is rotatably supported by the support bracket 33. As shown in FIG. 3, a plate-like lock plate 34t is integrally provided on the rotating shaft 34s. The lock plate 34t is formed with an engagement recess 34u at a predetermined position on the outer periphery thereof.
The support plate 31 is provided with lock pins 33p and 33q at two locations spaced in the circumferential direction on a concentric circle with the shaft 32 as the center.
The lock plate 34t of the lock lever 34 is engaged with the lock recess 33u by the lock pin 33p or 33q so that the top plate 30 is in a use state where the upper surface 30f is located in a horizontal plane (in FIG. 2 and FIG. And a non-use state in which the front end 30a side is flipped upward (a state indicated by a two-dot chain line in FIGS. 2 and 3).

As shown in FIG. 2, a support arm 35 that extends obliquely rearward from the lower surface of the top plate 30 downward is provided at the rear end portion 30 b of the top plate 30. The support arm 35 is connected to the joint member 16 provided at the upper end of the curtain plate 15 so as to be rotatable within a vertical plane including the front-rear direction.
A link plate 18 is connected to the lower end portion of the curtain plate 15 via a joint member 17 so as to be rotatable in a vertical plane including the front-rear direction. The support column 23 is formed with a slit (not shown) continuous in the direction in which the support column 23 extends. The lower end of the link plate 18 is slidably locked along a slit (not shown).
The curtain plate 15 is disposed so as to extend substantially vertically downward from the lower side of the rear end portion 30b of the top plate 30 when the top plate 30 is in use (state indicated by a solid line in FIG. 2). When the front end 30a side of the top plate 30 is flipped upward from this use state, the top plate 30 is interlocked with the support arm 35 that rotates integrally with the top plate 30 as the top plate 30 rotates about the shaft 32, The curtain plate 15 moves downward and forward. Accordingly, the link plate 18 slides downward along a slit (not shown). As a result, the curtain plate 15 moves to a position along the rear of the column portion 23 (a state indicated by a two-dot chain line in FIG. 2).

  The base portion 21 includes a base frame 24 that is provided integrally with the lower end of the column portion 23 and extends in the front-rear direction along the floor surface F, and a cover 25 that covers the base frame 24. The upper surface 21u of the base portion 21 (the upper surface of the cover 25) is formed to be inclined so that the front end portion (first grounding portion) 21f side gradually becomes lower than the rear end portion (second grounding portion) 21r.

  A caster (first caster member) 26 and a caster (second caster member) 27 that are rotatable on the floor surface F are provided at the front end 24 f and the rear end 24 r of the base frame 24. Further, the casters 26 and 27 are provided so as to be rotatable around the vertical axis with respect to the base frame 24. By these casters 26 and 27, the table apparatus 10 can be easily traveled in any direction on the floor surface F.

  A stopper mechanism 50 is provided at the front end portion 24f and the rear end portion 24r of the base frame 24 so that the movement of the table device 10 by the casters 26 and 27 can be restricted and the restriction can be released.

  The stopper mechanism 50 includes a front stopper member (fixed grounding member) 51, a rear stopper member (movable grounding member) 52, a biasing member 53, and a drive mechanism 60.

  The front stopper member 51 is provided forward (outward) from the caster 26 at the front end 24 f of the base frame 24. The front stopper member 51 has a flat bottom surface 51s as a lower surface. The ground contact surface 51 s is provided so as to protrude below the caster 26.

  As shown in FIGS. 4 and 5, the rear stopper member 52 is provided on the lower surface of the swing member 55 disposed at the rear end 24 r of the base frame 24. The swing member 55 includes a pair of side plates 55a and 55a that are opposed to each other with a gap in the width direction of the top plate 30, and a bottom plate 55b that connects the lower ends of the side plates 55a and 55a at the rear end portion 55r of the swing member 55. And have. In the swing member 55, the side plates 55 a and 55 a extend rearward from the caster 27, and the bottom plate 55 b is disposed behind the caster 27. A front end portion (one end portion) 55f of the swing member 55 is rotatable about a first support shaft 56 whose both end portions are fixed to the cover 25 of the support leg 20 or the like. The first support shaft 56 extends along the horizontal direction (the width direction of the top plate 30) and is provided in front of the casters 27. As a result, the side plate 55 a is swingable in the vertical plane around the first support shaft 56.

  Further, in the rear end portion 55r of the swing member 55, guide grooves 57 that are continuous in the front-rear direction of the top plate 30 are formed in the pair of side plates 55a and 55a, respectively.

  The rear stopper member 52 is integrally provided on the lower surface of the bottom plate 55 b of the swing member 55. The rear stopper member 52 is disposed rearward (outward) of the caster 27 at the rear end 24 r of the base frame 24.

  The urging member 53 is formed of a coil spring or the like, and moves the swing member 55 downward between a bottom plate 55b of the swing member 55 and a holder member 58 provided integrally with the rear end 24r of the base frame 24. It is provided to be energized.

A linking member 61 is disposed at the center in the width direction of the top plate 30 of the side plates 55a and 55a of the swing member 55. The linking member 61 is rotatable about a second support shaft 61 s whose both ends are fixed to the cover 25 of the support leg 20 and the like. The second support shaft 61 s extends along the horizontal direction (the width direction of the top plate 30), and is provided at the upper end of the linkage member 61 behind the casters 27. The second support shaft 61s is disposed above the first support shaft 56. Thereby, the linking member 61 is swingable in the vertical plane around the second support shaft 61s. The linking member 61 is urged in a direction to rotate the swing member 55 downward by a torsion coil spring (not shown). A slide shaft 61t that protrudes on both sides in the width direction of the top plate 30 is integrally formed at the lower end portion of the linkage member 61. Each slide shaft 61t slides along a guide groove 57 formed in the swing member 55 when the linkage member 61 swings around the second support shaft 61s.
In the present embodiment, the swing member 55, the guide groove 57, and the linkage member 61 constitute a drive mechanism 60.

FIG. 6 is a view showing the positional relationship between the guide groove formed in the drive mechanism and the slide shaft provided in the linking member.
As shown in FIG. 6, the guide groove 57 is formed in a region including a position P <b> 1 that is vertically below the second support shaft 61 s of the linkage member 61. That is, the guide groove 57 is formed such that a position P1 that is vertically below the second support shaft 61s of the linkage member 61 is located between the front end portion 57a and the rear end portion 57b of the guide groove 57. Yes. Here, the position P1 that is vertically below the second support shaft 61s is offset backward with respect to the center of the front end portion 57a and the rear end portion 57b of the guide groove 57. Thus, the rear end 57b of the guide groove 57 is formed to be slightly behind the position P1 that is vertically below the second support shaft 61s.

  As shown in FIG. 4, when such a linkage member 61 swings and the slide shaft 61t moves forward, the swing member 55 resists the urging force of the urging member 53, and the rear end portion 55r is moved upward. Swing to face. As a result, the urging member 53 is contracted, and the rear stopper member 52 is pulled upward (a state indicated by a two-dot chain line in FIG. 4). In a state where the slide shaft 61 t abuts against the front end portion 57 a of the guide groove 57, the rear stopper member 52 is positioned above the lower end of the caster 27. That is, when the swing member 55 is swung by the swing of the linkage member 61 and the rear stopper member 52 is pulled up, the caster 27 is grounded to the floor surface F instead of the rear stopper member 52.

  Further, when the slide shaft 61t moves rearward from the position P1 and hits the rear end 57b of the guide groove 57, the rear stopper member 52 protrudes downward from the caster 27. In this state, the rear end 57b of the guide groove 57 is located behind the position P1 that is vertically below the second support shaft 61s of the linkage member 61, so that the slide shaft that has come into contact with the end 57b. 61t is located offset from the lowermost position (position P1) of the turning trajectory of the slide shaft 61t around the second support shaft 61s. In other words, the linking member 61 is inclined so as to gradually move backward as it goes from the upper end to the lower end. Therefore, the slide shaft 61t is pressed to the rear end 57b side of the guide groove 57 by the horizontal component force Mh of the force M generated in the linkage member 61 due to its own weight.

  As shown in FIG. 2, a cable 62, a first cable operation member 63, and a second cable operation unit 64 are provided as operation units for operating the linkage member 61 of the drive mechanism 60 as described above.

  The cable 62 is inserted through a cylindrical guide sleeve 65 provided inside the support column 23 of the support leg 20. As shown in FIG. 4, the lower end portion 65 a of the guide sleeve 65 is held in a state in which downward movement is restricted by abutting against a sleeve holding portion 24 s formed on the base frame 24. The sleeve holding portion 24s is formed with an insertion hole 24h through which the cable 62 led downward from the lower end portion 65a of the guide sleeve 65 is inserted. The cable 62 inserted through the insertion hole 24 h is curved along a curved surface 58 f formed on the holder member 58. A cylindrical lower end Tyco 62P provided at the lower end 62a of the cable 62 is engaged with a cable engaging portion 61c provided at the linkage member 61.

A cable guide 66 (see FIG. 2) is inserted into the support column 23 from above.
FIG. 7 is a perspective view of the cable guide provided on the upper portion of the support leg.
As shown in FIG. 7, the cable guide 66 is formed with a guide groove 66m that is continuous in the vertical direction on the front side surface 66a and into which the guide sleeve 65 (see FIG. 2) is inserted. In the lower part of the guide groove 66m, a bulging portion 66b bulging toward the front side surface 66a is formed. Thereby, the guide sleeve 65 inserted and arranged in the guide groove 66m is curved so that a portion along the bulging portion 66b is convex toward the front side surface 66a.

  As shown in FIG. 3, the upper end portion 65b of the guide sleeve 65 is held in a state in which the upward movement thereof is restricted by striking an upper sleeve holding portion 66s formed at the upper end portion of the cable guide 66. Yes.

  An insertion hole 66h through which the cable 62 led upward from the upper end portion 65b of the guide sleeve 65 is inserted is formed in the upper sleeve holding portion 66s. The cable 62 inserted through the insertion hole 66 h is guided forward along the lower surface of the top plate 30 through the cable support member 38 fixed to the lower surface of the top plate 30.

FIG. 8 is a view of the cable support member provided above the support legs as viewed obliquely from below.
As shown in FIG. 8, the cable support member 38 is formed continuously from the base portion 38 a fixed to the lower surface of the top plate 30 (see FIG. 2), and recessed downward with respect to the base portion 38 a, in the front-rear direction. A guide groove 38b and a bulging portion 38c bulging downward from the base portion 38a. The bulge portion 38c is formed with a cable insertion slit 38f formed continuously from the rear of the guide groove 38b and into which the cable 62 extending upward from the insertion hole 66h is inserted from the rear.
As shown in FIGS. 3 and 8, the lower end portion of the cable insertion slit 38f has a slit width that is larger than that of the intermediate tie 62R provided at a predetermined position in the intermediate portion between the lower end portion 62a and the upper end portion 62b of the cable 62. The intermediate cable locking portion 38g is formed narrow. When the intermediate tie 62R abuts against the intermediate cable locking portion 38g, the relative downward displacement of the cable 62 with respect to the intermediate cable locking portion 38g is restrained.

The first cable operation member 63 is provided on the lower surface of the front end portion 30 a of the top plate 30.
FIG. 9 is a plan view showing the configuration of the first cable operation member.
As shown in FIGS. 3 and 9, the first cable operation member 63 includes a base portion 63 a that is rotatably supported about an axis orthogonal to the lower surface of the top plate 30, and a lever that extends from the base portion 63 a to the outer peripheral side. Part 63b. An upper end Tyco 62Q provided on the upper end 62b of the cable 62 is locked to the base 63a.

FIG. 10 is a schematic diagram showing a state in which the front stopper member and the rear stopper member are grounded in use. FIG. 11 is a schematic diagram showing a state where the rear stopper member is separated from the floor surface and the front and rear casters are grounded.
According to the stopper mechanism 50 as described above, when the upper surface 30f of the top plate 30 is in a horizontal plane, the front stopper member 51 and the rear stopper member 52 are connected to the floor surface F as shown in FIG. The front and rear casters 26 and 27 float above the floor surface F. As a result, the total weight of the table device 10 acts on the front stopper member 51 and the rear stopper member 52 provided on the pair of support legs 20, respectively, and restrains the movement of the table device 10 on the floor surface F. To do.

In this state, the gap Sr between the rear caster 27 and the floor surface F is larger than the gap Sf between the front caster 26 and the floor surface F.
When the front stopper member 51 and the rear stopper member 52 are grounded to the floor surface F, the ground surface 51s of the front stopper member 51 and the ground surface 52s of the rear stopper member 52 are parallel to the floor surface F, respectively. It is formed to become. Thus, in a state where the front stopper member 51 and the rear stopper member 52 are grounded to the floor surface F, the grounding surface 51s of the front stopper member 51 and the grounding surface 52s of the rear stopper member 52 are in contact with the floor surface F. Touch the surface.

  As shown in FIG. 4, in this use state, the cable 62 is not subjected to an upward tensile force, the swing member 55 is urged downward by the urging force of the urging member 53, and the linkage member 61 is The slide shaft 61t is in contact with the rear end 57b of the guide groove 57. In this state, the slide shaft 61t is offset backward from the lowermost position (position P1) of the turning locus of the slide shaft 61t with the second support shaft 61s as the center. As a result, the slide shaft 61t is pressed toward the rear end 57b of the guide groove 57, the linkage member 61 is not easily rotated forward, and the rear stopper member 52 is firmly maintained in contact with the floor F. To do.

To release the restraint by the front stopper member 51 and the rear stopper member 52 in order to move the table device 10, the lock lever 34 is first unlocked, and the front end 30a of the top plate 30 is pulled upward. Then, the top plate 30 rotates around the shaft 32. As a result, the cable support member 38 provided on the lower surface of the top plate 30 moves upward together with the top plate 30, and the intermediate cable locking portion 38 g of the second cable operation portion 64 hits the intermediate tie 62 </ b> R of the cable 62. 62 is pulled upward. When the cable 62 is pulled upward, the lower end Tyco 62P of the cable 62 displaces the linkage member 61 forward against the urging force of a torsion coil spring (not shown). Then, the slide shaft 61t moves along the guide groove 57 of the swing member 55 toward the front end portion 57a, and the swing member 55 swings so that the rear end portion 55r faces upward. As a result, the rear stopper member 52 is pulled upward. When the slide shaft 61t hits the front end portion 57a of the guide groove 57, the rear stopper member 52 is positioned above the lower end of the caster 27 as shown in FIG. 11, and the caster 27 is replaced by the rear stopper member 52. Ground the floor F.
When the caster 27 is in contact with the ground, as shown in FIG. 3, when the lock pin 33q is engaged with the engagement recess 34u of the lock lever 34, the top plate 30 is flipped upward on the front end 30a side. Since it is locked in the unused state (the state indicated by the two-dot chain line in FIGS. 2 and 3), the cable 62 does not return to the initial position unless this lock is released.

As shown in FIG. 11, when the rear caster 27 contacts the support leg 20 in this way, the base frame 24 tilts so that the rear end 24r is displaced downward with respect to the front end 24f. Then, the front caster 26 contacts the floor surface F, and the front stopper member 51 is lifted upward from the floor surface F. As a result, in the pair of support legs 20, only the front and rear casters 26 and 27 are brought into contact with the floor surface F, and the table device 10 is released from the restraint and can be moved and moved on the floor surface F.
Here, when the base portion 21 is tilted so that the lower end portion 22r of the rear end portion 21r is lower than the lower end portion 22f of the front end portion 21f as described above, the front caster 26 contacts the floor surface F. Until this point, only the end portion 51t of the front stopper member 51 on the side close to the rear end portion 21r of the base portion 21 is in contact with the floor surface F.

Further, in order to release the restraint by the front stopper member 51 and the rear stopper member 52, the lever portion 63b of the first cable operation member 63 is operated while the upper surface 30f of the top plate 30 is kept horizontal, and the first cable operation is performed. The member 63 can also be rotated. Then, the upper end Tyco 62Q of the cable 62 locked to the base portion 63a of the first cable operation member 63 is pulled forward, and the cable 62 in the column portion 23 is pulled upward. As a result, the lower end Tyco 62P of the cable 62 displaces the lower end portion of the linkage member 61 forward, the swing member 55 swings so that the rear end portion 55r faces upward, and the rear stopper member 52 is pulled upward. .
Also by such a lever operation of the first cable operation member 63, as shown in FIG. 11, in the pair of support legs 20, only the front and rear casters 26 and 27 are grounded to the floor surface F, and the table apparatus 10 Is released from the restraint and can travel and move on the floor surface F.

  As described above, the table device 10 includes the top plate 30 having an upper surface 30f on which an article can be placed, and the support legs 20 having the base portion 21 that supports the top plate 30 and extends along the floor surface F. The caster 26 provided at the front end portion 21f of the base portion 21, the caster 27 provided at the rear end portion 21r of the base portion 21, and the front end portion 21f of the base portion 21 are fixed and protrude downward from the caster 26. The front stopper member 51 that contacts the floor F and the rear end portion 21r of the base portion 21 are provided so as to be able to protrude and retract downward with respect to the caster 27, and protrude downward from the caster 27. A rear stopper member 52 that can be grounded to the floor surface F, and a drive mechanism 60 that advances and retracts the rear stopper member 52 to a state in which the rear stopper member 52 is grounded to the floor surface F and a state in which the rear stopper member 52 is separated from the floor surface F. Further, the table apparatus 10 retracts the rear stopper member 52 above the caster 27 so as to separate the rear stopper member 52 from the floor surface F, so that the rear end portion 21r of the base portion 21 becomes lower than the front end portion 21f. The casters 26 and 27 are grounded to the floor surface F, and the front stopper member 51 is separated upward from the floor surface F.

According to such a configuration, when the table apparatus 10 is in use, the rear stopper member 52 protrudes downward from the casters 27 and is grounded to the floor surface F. Accordingly, the front stopper member 51 and the rear stopper member 52 are grounded to the floor surface F, and the casters 26 and the casters 27 are separated upward from the floor surface F. Thereby, a big braking force can be obtained.
From this state, when the rear stopper member 52 is retracted above the caster 27, the caster 27 is grounded to the floor surface F, and the rear end portion 21r of the base portion 21 material is lower than the front end portion 21f. By tilting, the front stopper member 51 is spaced upward from the floor surface F, and the caster 26 contacts the floor surface F. As a result, the caster 26 and the caster 27 are grounded to the floor surface F, and the table device 10 can travel and move on the floor surface F.
When the rear stopper member 52 is operated, the front stopper member 51 remains in contact with the ground, and the rear stopper member 52 may be retracted upward while the front stopper member 51 supports the load of the table device 10. Less power is required for operation.
Furthermore, according to such a configuration, the number of parts can be reduced as compared with the case where the drive mechanism 60 is configured by a large number of link members. Further, since it has a large braking force as described above, one of the two grounding members (the rear stopper member 52) may be configured to be movable. Therefore, since only one drive mechanism 60 needs to be provided, the number of parts can be further reduced.

  Therefore, according to the table device 10, while exerting a large braking force so that the table device 10 does not move in the used state, the movement restraint is easily released when the table device 10 is moved, and an increase in cost and weight are reduced. It becomes possible to suppress.

Further, in a state where the front stopper member 51 and the rear stopper member 52 are grounded to the floor surface F, the gap Sr between the caster 27 and the floor surface F is larger than the gap Sf between the caster 26 and the floor surface F.
According to such a configuration, when the rear stopper member 52 is retracted above the caster 27 and the caster 27 is grounded to the floor surface F, the front stopper member 51 is reliably moved upward from the floor surface F. The casters 26 can be grounded to the floor surface F by being separated from each other.

The rear stopper member 52 is attached to the swing member 55, and the grounding surface 51s of the front stopper member 51 and the rear stopper member 52 are in a state where the front stopper member 51 and the rear stopper member 52 are grounded to the floor surface F. The ground contact surface 52s is formed to be parallel to the floor surface F.
According to such a configuration, in the usage state in which the front stopper member 51 and the rear stopper member 52 are grounded to the floor surface F in the usage state of the table apparatus 10, the grounding surface 51 s and the rear portion of the front stopper member 51 are used. The ground contact surface 52s of the stopper member 52 is in surface contact with the floor surface F, and a large braking force can be obtained.
On the other hand, when the base portion 21 is tilted so that the rear end portion 21r is lowered with respect to the front end portion 21f by retracting the rear stopper member 52 above the casters 27, the ground contact surface 51s of the front stopper member 51 is Only the end portion 51t on the side close to the rear end portion 21r of the base portion 21 is grounded to the floor surface F. Thereby, since the contact area with respect to the floor surface F of the front stopper member 51 becomes small, the frictional force generated between the front stopper member 51 and the floor surface F, that is, the resistance force generated until the caster 26 is grounded. Is smaller, and less force is required for operation.

Further, the front stopper member 51 and the rear stopper member 52 are disposed outside the base portion 21 with respect to the casters 26 and the casters 27.
According to such a configuration, the stability in a state where the front stopper member 51 and the rear stopper member 52 are grounded can be increased.

Further, the front stopper member 51 and the caster 26 are provided on one end side of the base portion 21, and the rear stopper member 52 and the caster 27 are provided on the other end side of the base portion 21.
According to such a configuration, since the front stopper member 51, the rear stopper member 52, the caster 26, and the caster 27 are provided on the common base portion 21, an error is unlikely to occur in the installation angle, the installation interval, and the like of each member. It can be easily assembled with high accuracy.

  Further, the upper surface 21u of the base portion 21 is formed so that the front end portion 21f is lower than the rear end portion 21r. According to such a configuration, the user's foot of the table device 10 is less likely to interfere with the base portion 21.

(Other embodiments)
In addition, the fixture with a top plate of this invention is not limited to each above-mentioned embodiment demonstrated with reference to drawings, Various modifications can be considered in the technical scope.
For example, in the said embodiment, although the table apparatus 10 was mentioned as an example, if it is a fixture with a top plate provided with a top plate, any other fixtures may be sufficient.
Further, in the above embodiment, the rear stopper member 52 that can swing only at the rear of the base portion 21 is provided. However, the present invention is not limited to this, and a grounding member that can swing only at the front may be provided. .
Further, the drive mechanism 60 that operates the rear stopper member 52 is not limited to the configuration described above, and may have any other configuration.

  Furthermore, in the above-described embodiment, the front stopper member 51, the rear stopper member 52, the casters 26, and the casters 27 are provided on one end side and the other end side of the base portion 21. It can also be set as the structure which is not provided. In this case, the front stopper member 51 and the caster 26 as the first grounding portion are provided on one of the support legs that are separated from each other in the direction along the floor surface, and the rear stopper member 52 and the second grounding portion as the second grounding portion. A caster 27 may be provided. In this case, the one and the other support legs may be orthogonal to the floor surface, respectively. Even if the other support leg is inclined with respect to the one support leg, both the support legs are, for example, in a side view. It may be inclined in a “person” shape.

  In addition to this, the configuration described in the above embodiment can be selected or changed to another configuration as appropriate without departing from the gist of the present invention.

10 Table device (fixture with top plate)
20 support leg 21 base part 21f front end part (first grounding part)
21r Rear end (second grounding part)
21u Upper surface 26 Caster (first caster member)
27 Caster (second caster member)
30 Top plate 30f Upper surface 51 Front stopper member (fixed grounding member)
51s Grounding surface 52 Rear stopper member (movable grounding member)
52s Grounding surface 55 Swing member 56 First support shaft 60 Drive mechanism F Floor surface

Claims (6)

A top plate having an upper surface on which an article can be placed;
Supporting the top plate, a support leg having a first grounding portion and a second grounding portion provided at intervals in a direction along the floor surface;
A first caster member provided in the first grounding portion;
A second caster member provided in the second grounding portion;
A fixed grounding member fixed to the first grounding part and grounded to the floor surface;
A movable grounding member provided on the second grounding portion and capable of grounding to the floor surface;
A drive mechanism for moving the movable ground member back and forth between a state in which the movable ground member is grounded to the floor surface and a state in which the movable ground member is separated from the floor surface;
By retracting the movable grounding member above the second caster member so as to be separated from the floor surface, the second grounding part is tilted so as to be lower than the first grounding part, and the first An apparatus with a top plate, wherein one caster member and the second caster member are grounded to the floor surface, and the fixed grounding member is spaced upward from the floor surface.   In a state where the fixed ground member and the movable ground member are grounded to the floor surface, a gap between the second caster member and the floor surface is larger than a gap between the first caster member and the floor surface. The fixture with a top plate according to claim 1. The movable ground member is provided on a swing member whose one end is supported around a horizontal axis,
In a state where the fixed grounding member and the movable grounding member are grounded to the floor surface, the grounding surface of the fixed grounding member and the grounding surface of the movable grounding member are respectively formed to be parallel to the floor surface. The table-top fixture according to claim 1 or 2, wherein   The fixed grounding member and the movable grounding member are disposed outward with respect to the first caster member and the second caster member in a direction in which the first grounding portion and the second grounding portion are separated from each other. The fixture with a top plate as described in any one of Claim 1 to 3 characterized by the above-mentioned. A base portion provided to extend along the floor surface;
The first ground portion is provided on one end side of the base portion, and the second ground portion is provided on the other end side of the base portion. The fixture with a top plate as described.   6. The tabletop fixture according to claim 5, wherein the upper surface of the base portion is formed so that the first grounding portion is lower than the second grounding portion.

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