JP2016214610A - Furniture with top board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a topped furniture item with a small number of components that exerts a big braking force with a small operational force so as to be prevented from moving in use, while easily releasing restriction of movement when moved.SOLUTION: A table device has a driving mechanism 60 for allowing a rear stopper member 52 to appear and disappear comprises: a swing member 55 that rotates around a first support shaft 56 so as to allow the rear stopper member 52 to come in and out of contact with a floor surface; and a linkage member 61 that is rotatably supported around a second support shaft 61s and has a lower end provided with a sliding shaft 61t capable of sliding along a guide groove 57 formed at the swing member 55. When the rear stopper member 52 is in contact with the floor surface, the linkage member 61 swings in a posture inclined beyond a vertical direction, the sliding shaft 61t bumps against a rear end 57b of the guide groove 57, and thereby sliding is restricted.SELECTED DRAWING: Figure 4

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.

  In Patent Document 2, as a movement restraining mechanism, a swinging body provided swingably on a leg of a table device, a swinging body provided integrally with the swinging body, projecting downward, and contacting the floor surface to move the table device. A grounding body (stopper) for restraining the rocking body, a caster provided on one side of the rocking body, and a release wire connected to the other side of the rocking body and rocking the rocking body around the shaft member Is disclosed.

Japanese Patent No. 2721588 Japanese Patent No. 5192801

  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.

Further, in the configuration disclosed in Patent Document 2, the structure is simple compared to Patent Document 1, but to release the restraint of the table by the grounding body, the other side of the rocking body is moved by the release wire. It is necessary to operate directly and pull it up vertically, which has a large force in operation.
Further, in the configuration disclosed in Patent Document 2, the end of the grounding body provided on the swinging body abuts against the floor surface by the swinging body rotating around the shaft member and restrains the movement of the table device. is there. In other words, since the movement of the table device is restrained by the frictional force generated between the end of the grounding body and the floor surface, the table device does not move by pressing the grounding body against the floor surface with a large force. Thus, it is difficult to increase the braking force to be restrained.

  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 is provided on a top plate having an upper surface on which an article can be placed, a support leg that is installed on a floor surface and supports the top plate, and a lower part of the support leg, A caster capable of traveling on the floor surface, a grounding member provided on the support leg, projecting downward from the caster and capable of being grounded to the floor surface, a drive mechanism for projecting and retracting the grounding member, and the drive mechanism An operating portion for operating the drive mechanism, wherein the drive mechanism is rotatable at one end around a first support shaft provided on the support leg, and the grounding member is provided at the other end. A swing member that rotates around the first support shaft to bring the grounding member into and out of contact with the floor surface, and is formed on the swing member, and is continuous in a direction connecting the one end to the other end. Guide groove and upper end of the first support shaft A slide shaft that is slidable along the guide groove is provided at the lower end of the second support shaft, and a slide shaft that is slidable along the guide groove is provided around the second support shaft. A link member that is operated to swing, and in a state in which the grounding member is in contact with the floor surface, the link member is swinged and tilted beyond a vertical direction, and the slide shaft is connected to the guide The slide is restrained by abutting against one end of the groove.

According to such a configuration, in the use state of the fixture with a top plate, the grounding member provided on the swing member projects downward from the caster to make contact with the floor surface, thereby exerting a braking force. Movement is restrained. From this state, when the linkage member of the drive mechanism is swung around the second support shaft by the operating portion, the slide shaft provided at the lower end of the linkage member has an arcuate locus centering on the second support shaft. Move along. In this way, the slide shaft that moves in the vertical direction along the arcuate locus slides along the guide groove formed in the swing member, so that the swing member can be The other end side is rotated in the vertical direction around the first support shaft. By this pivoting operation of the swing member, the grounding member provided at the other end of the swing member comes in contact with and separates from the floor surface, and the restraint and release of the movement of the tabletop fixture can be switched.
As described above, in order to swing the other end portion of the swing member up and down in order to install the grounding member, the operation unit laterally moves the link member of the drive mechanism so as to rotate around the second support shaft. It is only necessary to apply a force to the, and the required operating force is small.
As described above, in a state where the grounding member protrudes downward and contacts the floor surface, the linkage member swings and tilts beyond the vertical direction, and the slide shaft slides against one end of the guide groove. Is restrained. Therefore, the horizontal component of the force generated by the self-weight of the fixture with the top plate acting on the linkage member presses the lower end of the linkage member against one end of the guide groove, that is, the slide shaft provided on the linkage member. It acts in the direction of pressing against one end of the guide groove. As a result, the linking member is unlikely to move carelessly from the state where the grounding member protrudes downward and is grounded, and a large braking force is exhibited.
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 large braking force as described above, for example, if it is sufficient to provide only one grounding member, the number of components can be further reduced by providing one drive mechanism.

Moreover, the fixture with a top plate according to the present invention is the fixture with the top plate, wherein the operation portion is a cable having one end connected to the linkage member, and the slide shaft is opposite to the one end of the guide groove. And a cable pulling means for pulling the cable so that the linking member rotates in a direction to approach the other end.
According to such a configuration, when the cable is pulled by the cable pulling means, the linkage member connected to one end of the cable is swung. As the linkage member swings, the slide shaft provided on the linkage member slides in a direction approaching the other end portion of the guide groove. Along with the slide of the slide shaft, the swing member rotates around the first support shaft at one end. As a result, the grounding member provided at the other end of the swing member can be separated from the floor surface, and the restriction on the movement of the table-top fixture can be released.

Further, the tabletop fixture according to the present invention is such that the tabletop is pivotally connected to the support leg, and the cable pulling means is separated from the center of rotation of the tabletop. The cable locking tool provided on the top plate may be provided at the position.
By configuring in this way, the cable is pulled when the top plate is rotated and the cable locking tool as the cable pulling means is moved upward. Accordingly, the grounding member provided at the other end of the swing member can be separated from the floor surface in conjunction with the pivoting operation of the top plate, and the restriction on the movement of the top plate-equipped furniture can be released.

Moreover, the fixture with a top plate according to the present invention is the appliance with a top plate, wherein the cable has a locked portion that is locked to the cable locking tool when the top plate is rotated from a horizontal state. The other end of the cable may be connected to a lever that is rotatably provided on the top plate as another cable pulling means.
With this configuration, when the top plate is rotated and the cable locking device as the cable pulling means is moved upward, the cable locking device is locked to the locked portion provided on the cable. The cable is pulled. Further, when the lever is rotated while the top plate is in a use state, the other end of the cable can be pulled. In this way, by selectively performing both the rotation operation of the top plate itself and the rotation operation of the lever, the grounding member provided at the other end of the swing member is separated from the floor surface, The restraint of the movement of the plate-mounted fixture can be released.

Further, the tabletop fixture according to the present invention may further include a biasing member that biases the swing member in a direction in which the grounding member is pressed against the floor surface in the tabletop fixture. .
With this configuration, when the grounding member is grounded from the state where the grounding member is separated from the floor surface, the grounding member can be easily grounded by the biasing force of the biasing member. Further, when the grounding member is in contact with the floor, the braking force can be increased by the biasing force of the biasing member.

  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 21f side gradually becomes lower than the rear end portion 21r.

  Casters 26 and 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 51, a rear stopper member (grounding member) 52, a biasing member 53, and a drive mechanism 60.

  The front stopper member 51 is provided in front of 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. The front 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 behind the casters 27 at the rear end 24r 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 (vertical downward 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 has a position P1 vertically below the second support shaft 61s of the linking member 61 at a front end (other end) 57a and a rear end (one end) 57b of the guide groove 57. It is formed so that it may be located between. 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, as an operation unit for operating the linkage member 61 of the drive mechanism 60 as described above, a cable 62, a first cable operation member (operation unit, cable pulling means, lever) 63, and a second cable And an operation unit (operation unit, cable pulling means) 64.

  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 (one 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 is an intermediate lever (covered) provided at a predetermined position in the intermediate portion between the lower end portion 62a and the upper end portion (the other end) 62b of the cable 62. The intermediate cable locking part (cable locking tool) 38g is formed with a slit width narrower than that of the locking part 62R. 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 manner, 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 the upper surface 30f on which the article can be placed, the support leg 20 that is installed on the floor surface F and supports the top plate 30, and the lower surface of the support leg 20. A caster 27 that can travel on the floor surface F, a support leg 20, a rear stopper member 52 that protrudes downward from the caster 27 and can be grounded to the floor surface F, and a rear stopper member 52. A drive mechanism 60 that moves in and out, and a first cable operation member 63 and a second cable operation unit 64 that operate the drive mechanism 60 are provided. The drive mechanism 60 extends along the floor surface F, the front end portion 55f is rotatable about the first support shaft 56 provided on the support leg 20, and the rear stopper member 52 is mounted on the lower surface of the rear end portion 55r. The swing member 55 is formed on the swing member 55, and the front end portion 55f and the rear end portion 55r are connected to and separated from the floor surface F by rotating around the first support shaft 56. A guide groove 57 continuous in the connecting direction and an upper end portion are rotatably supported around a second support shaft 61 s provided above the first support shaft 56, and a lower end portion extends along the guide groove 57. A slidable slide shaft 61t is provided, and a first cable operation member 63 and a linkage member 61 that is swung around the second support shaft 61s by a second cable operation portion 64 are provided. In addition, with the rear stopper member 52 in contact with the floor F, the linkage member 61 is swung and tilted beyond the vertical direction, and the slide shaft 61t hits the rear end portion 57b of the guide groove 57. The slide is restrained.

  According to such a configuration, when the table device 10 is in use, the rear stopper member 52 provided on the swing member 55 projects downward from the caster 27 and comes into contact with the floor F to exert a braking force. The movement of the device 10 is restrained. From this state, when the linkage member 61 of the drive mechanism 60 is swung around the second support shaft 61 s by the first cable operation member 63 or the second cable operation portion 64, the slide shaft provided at the lower end portion of the linkage member 61. 61t moves along an arcuate locus centering on the second support shaft 61s. The slide shaft 61t that moves in the vertical direction along the arcuate locus in this way slides along the guide groove 57 formed in the swing member 55, so that the swing member 55 becomes the first support shaft of the front end portion 55f. The rear end 55r side is rotated in the vertical direction around 56. By the swinging operation of the swing member 55, the rear stopper member 52 provided at the rear end portion 55r of the swing member 55 is brought into contact with and separated from the floor surface F, so that the restriction and release of the movement of the table device 10 can be switched. .

  As described above, in order to swing the rear end portion 55r of the swing member 55 up and down in order to install the rear stopper member 52, the linkage member 61 of the drive mechanism 60 rotates around the second support shaft 61s. In addition, it is sufficient to apply a force in the lateral direction via the cable 62, and the required operating force can be reduced.

  Further, in a state where the rear stopper member 52 protrudes downward and is grounded, the linkage member 61 is swung so as to extend obliquely downward from the second support shaft 61s on the upper end side toward the lower end portion, exceeding the vertical direction. In addition, the slide shaft 61t abuts against the rear end 57b of the guide groove 57 and the slide is restrained. Therefore, the horizontal component force Mh of the force M generated when the weight of the table device 10 acts on the linkage member 61 presses the slide shaft 61t at the lower end portion of the linkage member 61 against the end portion 57b behind the guide groove 57. It acts in the direction, that is, the direction in which the slide shaft 61 t provided on the linkage member 61 is pressed against the rear end 57 b of the guide groove 57. As a result, the linkage member 61 is unlikely to move carelessly from the state in which the rear stopper member 52 protrudes downward and is grounded, and a large braking force is exhibited.

  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. In addition, since it has a large braking force as described above, when it is sufficient to provide only one rear stopper member 52 that moves in the vertical direction as in the embodiment described above, one drive mechanism 60 is provided. The number of components can be further suppressed if it is provided.

  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, the cable 62 having the lower end 62a connected to the linking member 61 and the linking member 61 rotate in a direction in which the slide shaft 61t approaches the front end 57a opposite to the rear end 57b of the guide groove 57. A first cable operation member 63 and a second cable operation unit 64 are provided as cable pulling means for pulling the cable 62 to move.
With this configuration, when the cable 62 is pulled by the first cable operation member 63 and the second cable operation unit 64, the linkage member 61 connected to the lower end portion 62a of the cable 62 is swung. As the linkage member 61 swings, the slide shaft 61t provided on the linkage member 61 slides in a direction approaching the front end 57a side of the guide groove 57. The swing member 55 rotates about the first support shaft 56 together with the slide of the slide shaft 61t. Accordingly, the rear stopper member 52 can be separated from the floor surface F, and the restriction on the movement of the table device 10 can be released.

Further, the top plate 30 is rotatably connected to the support leg 20, and the second cable operation unit 64 as a cable pulling means is attached to the top plate 30 at a position separated from the rotation center of the top plate 30. The intermediate cable locking portion 38g is provided.
With this configuration, when the top plate 30 is rotated and the intermediate cable locking portion 38g is moved upward, the cable 62 is pulled. Accordingly, the rear stopper member 52 can be separated from the floor surface F in conjunction with the pivoting operation of the top plate 30 and the restriction on the movement of the table device 10 can be released.

Further, the middle portion of the cable 62 is provided with an intermediate tie 62R that is locked to the intermediate cable locking portion 38g when the top plate 30 is rotated from the horizontal state. As a cable pulling means, it is connected to a first cable operating member 63 that is rotatably provided on the top plate 30.
With this configuration, when the top plate 30 is rotated to move the intermediate cable locking portion 38g upward, the intermediate cable locking portion 38g engages with the intermediate Tyco 62R provided at the intermediate portion of the cable 62. Stop and pull cable 62. Further, when the first cable operation member 63 is rotated while the top plate 30 is kept in use, the upper end portion 62b of the cable 62 can be pulled. In this way, the rear stopper member 52 is moved to the floor by selectively performing both the rotation operation of the top plate 30 itself and the rotation operation of the first cable operation member 63 with respect to one cable 62. The movement of the table device 10 can be released from the surface F.

Further, a biasing member 54 that biases the swing member 55 in a direction in which the rear stopper member 52 is pressed against the floor surface F is further provided.
With this configuration, when the rear stopper member 52 is grounded from the state where the rear stopper member 52 is separated from the floor surface F, the rear stopper member 52 is easily grounded by the biasing force of the biasing member 54. be able to. Further, when the rear stopper member 52 is in contact with the floor surface F, the braking force can be increased by the urging force of the urging member 54.

(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.
In the above embodiment, the rear stopper member 52 that can swing only behind the base portion 21 is provided. However, the present invention is not limited to this, and a grounding member that can swing only forward or both front and rear is provided. It may be.
Further, in the above embodiment, the linking member is formed in a straight line shape along the vertical plane, but is not limited to this, and is formed along the vertical plane and bent, for example, in a dogleg shape. Also good. In this case, with the grounding member in contact with the floor, the grounded portion of the linking member formed to be bent is in a posture in which the linking member is swung and tilted beyond the vertical direction. For example, the horizontal component of the force generated by the weight of the table device acting on the linkage member acts in the direction of pressing the slide shaft provided on the linkage member against one end of the guide groove.
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 23 support part 26, 27 caster 30 top plate 30f upper surface 38 cable support member 38g intermediate cable locking part (cable locking tool)
50 Stopper mechanism 51 Front stopper member 52 Rear stopper member (grounding member)
53 Biasing member 55 Swing member 55f Front end 55r Rear end 56 First support shaft 57 Guide groove 57a Front end (other end)
57b Rear end (one end)
60 Drive mechanism 61 Linking member 61s Second support shaft 61t Slide shaft 62 Cable 62a Lower end (one end)
62b Upper end (other end)
62P Lower end Tyco 62Q Upper end Tyco 62R Intermediate Tyco (locked part)
63 1st cable operation member (operation part, cable pulling means, lever)
64 Second cable operation part (operation part, cable pulling means)
F Floor P1 position (Vertical downward position)

Claims (5)

A top plate having an upper surface on which an article can be placed;
A support leg installed on the floor and supporting the top plate;
A caster provided at a lower portion of the support leg and configured to be movable on the floor surface;
A grounding member provided on the support leg, protruding downward from the caster and capable of being grounded to the floor surface;
A drive mechanism for moving the grounding member in and out;
An operation unit for operating the drive mechanism,
The drive mechanism is
One end portion is rotatable about a first support shaft provided on the support leg, the other end portion is provided with the grounding member, and the grounding member is rotated by rotating about the first support shaft. A swing member that contacts and separates from the floor surface;
A guide groove formed in the swing member and continuous in a direction connecting the one end to the other end;
An upper end portion is rotatably supported around a second support shaft provided above the first support shaft, and a slide shaft that is slidable along the guide groove is provided at the lower end portion. A linkage member that is swung around the second support shaft by a portion,
With the grounding member in contact with the floor surface, the linkage member is swung and tilted beyond the vertical direction, and the slide shaft abuts against one end of the guide groove to restrain the slide. A fixture with a top plate. The operation unit is
A cable having one end connected to the linkage member;
Cable pulling means for pulling the cable so that the linkage member rotates in a direction in which the slide shaft approaches the other end opposite to the one end of the guide groove;
The fixture with a top plate according to claim 1. The top plate is rotatably connected to the support leg,
The fixture with a top plate according to claim 2, wherein the cable pulling means is a cable locking tool provided on the top plate at a position separated from the rotation center of the top plate. The cable is provided with a locked portion that is locked to the cable locking tool when the top plate is rotated from a horizontal state,
The other end part of the said cable is connected with the lever rotatably provided in the said top plate as another said cable tension | pulling means, The fixture with a top plate of Claim 3 characterized by the above-mentioned.   The tabletop fixture according to any one of claims 1 to 4, further comprising a biasing member that biases the swing member in a direction in which the grounding member is pressed against the floor surface.

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