JP2006095025A - Braking arrangement of table - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To temporarily move a table without erecting a top plate in a braking arrangement for separating a braking member from a floor by the erection of the top plate and grounding the braking member to the floor and executing braking when the top plate is in a horizontal posture. <P>SOLUTION: In the table provided with wheels, there provided are a shelf plate 16 associated with the movement of the top plate 10 and erected and brought down following the erection and bringing-down of the top plate 10, the braking member 35 to be in contact with or separated from the floor, an association mechanism for bringing the braking member 35 into contact with the floor surface by the turning of the shelf plate 16 to the horizontal attitude and separating the braking member 35 from the floor surface by the turning of the shelf plate 16 in an erecting direction, and a canceling mechanism 17 for canceling the association between of the top plate 10 and the shelf plate 16. By the canceling operation of the canceling mechanism 17, only the shelf plate 16 can be turned in the erecting direction. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a braking device for a table.

  2. Description of the Related Art Conventionally, there has been known a table in which the top plate can be placed in a horizontal posture when the table is used, and the top plate can be in a standing posture when not in use, that is, when stored.

Further, in such a table, as shown in FIG. 29, an adjuster 203 (braking member) is fixed to a lateral leg 202 provided at the lower part of the table 201, and a caster 204 is provided so that it can be raised and lowered. The caster 204 is moved up and down in conjunction with the tilting operation. When the top plate 205 is in a horizontal state, the caster 204 is raised and the adjuster 203 contacts the floor to prevent the table from moving. It is known that 204 protrudes downward and is grounded, and the table 201 can be moved by the caster 204 (see Patent Document 1).
Japanese Patent No. 3181035

  In the prior art, when the table is moved, the top plate must be erected to release the braking member. For example, when a plurality of top plates are arranged horizontally, the tables are adjacent to each other. Even if it is desired to move the table by a small amount in order to align with the table, the top plate must be erected, which makes it difficult to adjust the amount of the table.

  Therefore, the present invention uses a shelf plate disposed below the top plate even when the top plate is in a horizontal state (use state), and the brake member is temporarily released by a simple mechanism by operating the shelf plate. It is an object of the present invention to provide a table braking device which can be performed.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a table provided with wheels. A brake member that contacts the floor surface by rotation of the shelf plate to a horizontal position, and an interlock mechanism that separates the brake member from the floor surface by rotation of the shelf plate in the standing direction, and the top plate and the shelf A release mechanism for releasing the interlock with the plate is provided, and only the shelf plate can be rotated in the standing direction by the release operation of the release mechanism.

  The invention according to claim 2 is provided on a support shaft provided with a top plate that can be turned up and down at the upper part of the support column, a shelf plate disposed below the top plate, and one end of the shelf plate provided rotatably on the support column part The other end of the shelf plate is connected to the top plate at the link portion, the support shaft is provided with a rod that moves up and down by the rotation of the support shaft, the lower portion of the rod is provided with a braking member, The braking member is raised and separated from the floor surface by turning in the standing direction, and the braking member is lowered and brought into contact with the floor surface by turning the shelf board in the horizontal direction. The shelf plate and the top plate mounting plate are integrally interlocked, or the interlock is released so that only the shelf plate can be rotated.

  The invention according to claim 3 is the invention according to claim 2, wherein the toggle mechanism is provided with a first link rotatably provided on the top plate side, and a second link provided rotatably on the shelf plate side, A pin that connects the two links, and a pin that is locked by moving the pin to one side beyond the dead point, and further provided with release means for rotating in the release direction.

  According to the present invention, by setting the top plate and the shelf plate in a connected state, the braking member can be brought into and out of contact with the floor surface by a tilting operation of the top plate, and the connected state is released. By rotating only the shelf board in the standing direction, the braking member can be separated from the floor surface while the top board is kept horizontal.

  Therefore, in the horizontal state of the top plate, the braking member can be separated from the floor surface by operating the shelf plate, and the braking state can be temporarily released, so that the top plate remains in the horizontal state (use state) by this temporary release. The table can be moved by a small amount, and the positioning of a plurality of tables can be easily performed.

  Further, since braking is applied by grounding the braking member without lifting the table, a large operating force is not required, and braking and release can be performed by slightly moving the shelf up and down.

  In addition, if the top plate and the shelf plate are connected and released by a toggle mechanism, the structure becomes simple.

  The best mode for carrying out the present invention will be described based on the embodiment shown in FIGS.

  FIG. 1 to FIG. 11 show Embodiment 1, in which the present invention is applied to a table, more specifically to a flap table. A pair of horizontal legs 2 and 2A are provided at the lower part of the table 1 on the left and right sides. The lateral legs 2 and 2A are arranged in the front-rear direction and in parallel. Further, support columns 5 and 5A are erected on both lateral legs 2 and 2A. In addition, the seating side A in the table 1 is the rear side, and the side opposite to the seating side, that is, the counter seating side B is the front side.

  Further, since the structure on the side of the one side leg 2 and the support column 5 and the side of the other side leg 2A and the support column 5A are the same, the description will be given on the side of the one side leg 2 and the support column 5 and the other side leg 2A. The components on the side of the support column 5A are given the same reference numerals as those of the side legs 2 and the support column 5 side, and the description thereof is omitted.

  Wheels 3a and 3b are provided on the lower surfaces of the front and rear ends of the horizontal legs 2 and 2A, and casters are used in the embodiment.

  On the upper surfaces of the horizontal legs 2 and 2A, support columns 5 and 5A are erected from the center in the front-rear direction and are erected, and the support columns 5 and 5A are formed of metal pipes and the lower ends thereof are lateral. The legs 2 and 2A are vertically passed through and fixed to the lateral legs 2 and 2A. Therefore, the lower ends of the support columns 5 and 5A are open to the lower side of the lateral legs 2.

  The support columns 5 and 5A are provided with a vertical portion 6 standing upright from the upper surface of the horizontal legs 2 and 2A by a predetermined length with respect to the floor surface, and from the upper end of the vertical portion 6 to the seating side which is the rear side. It is formed by a series of bends with an inclined portion 7 inclined upward. Further, the front surface 7a of the inclined portion 7 is formed in a straight surface. As shown in FIG. 2, the vertical portion 6 has a length L1 of 35 cm from the intersection of the center line of the vertical portion 6 and the center line of the inclined portion 7 to the floor surface FL as shown in FIG. It is set to be in a range of ˜55 cm. The length of L1 is preferably set to 48 cm. The length L2 from the intersection of the center line of the vertical part 6 and the center line of the inclined part 7 to the intersection of the center line of the inclined part and the back surface of the top plate 10 in the horizontal posture is set in the range of 14 cm to 38 cm. ing. The length of L2 is preferably set to 23 cm. Furthermore, the angle α1 of the inclined portion 7 with respect to the horizontal plane is set to a range of 45 degrees to 75 degrees, preferably 60 degrees. For example, when the thickness of the top plate 10 is about 25 mm and the total height L5 of the table 1 from the floor surface FL is about 700 mm, the L1 is set to 48 cm, L2 is set to 23 cm, and α1 is set to 60 degrees. A penetrating pipe 4 that connects and reinforces both struts 5, 5 </ b> A is installed between the upper portions of both struts 5, 5 </ b> A, that is, between the inclined portions 7, 7.

  As shown in FIG. 6, a hinge fitting 5a is fixed to the upper part of the support pillars 5 and 5A, that is, the inclined portions 7 and 7 so as to protrude upward. A first support shaft 8 disposed horizontally is provided, and a top plate mounting plate 9 is rotatably provided on the first support shaft 8 with the first support shaft 8 serving as a rotation axis. Further, a top plate 10 is fixed to the upper surface of the top plate attachment plate 9 so that the top plate 10 can be rotated in the front-rear direction together with the top plate attachment plate 9 about the first support shaft 8. Yes. Further, as shown in FIG. 5, the top plate mounting plate 9 is provided with a rotary shaft 11 rotatably, and an operation lever 12 and a stopper lever 13 are fixed to the rotary shaft 11. Further, the stopper lever 13 is provided with a pin 13a. When the operation lever 12 is moved downward with the top plate 10 in a horizontal state as shown in FIG. 5, the pin 13a is provided on the hinge fitting 5a side. The top plate 10 is held in the horizontal state by being engaged with the groove 14a, and the operation lever 12 is moved upward to remove the pin 13a from the engagement groove 14a. Then, the top plate 10 is raised, and then the operation lever 12 is moved downward. By doing so, as shown in FIG. 9, the pin 13a is locked in the locking groove 14b provided on the hinge metal fitting 5a side so that the standing state of the top plate 10 can be maintained. The stopper lever 13 is provided with a spring 13c which is a biasing means for constantly biasing the stopper lever 13 in the direction of the locking grooves 14a and 14b.

  Further, by erecting the top plate 10 as described above, as shown in FIG. 9, the top plate 10 stands so that the front lower surface thereof is inclined along the front surface 7 a of the inclined portion 7 in the support column 5. It has become.

  A second support shaft 15 is rotatably supported on and supported by the support columns 5 and 5A at the upper portion of the support column 5, that is, the inclined portion 7 and below the top plate mounting plate 9.

  A shelf plate 16 is disposed below the top plate 10, and the shelf plate 16 includes a shelf side plate 16a and a shelf bar 16b as shown in FIG. The front end of the shelf side plate 16 a is bent downward, and the tip thereof is fixed to the second support shaft 15. Therefore, by rotating the shelf plate 16 in the vertical direction about the second support shaft 15, the second support shaft 15 is also rotated in the same direction by the same amount in synchronization.

  The rear side end (seat side end) of the shelf side plate 16a and the top plate mounting plate 9 are connected by a link portion 17, and the link portion 17 is formed by a toggle mechanism. As shown in FIG. 7, the toggle mechanism includes a first link 19 provided on the top plate 10 side, that is, a third support shaft 18 provided horizontally on the top plate mounting plate 9, and a shelf side plate 16a. The second link 21 provided on the fourth support shaft 20 rotatably provided at the rear side end, and the other end of the first link 19 and the other end of the second link 21 are rotatably connected. A pin 22, a stopper portion 23 that holds the pin 22 on the front side from the line connecting the third support shaft 18 and the fourth support shaft 20 (state shown in FIG. 7), and the pin 22 on the front side And an urging means 24 comprising a coil spring for urging the spring.

  Therefore, as shown in FIG. 7, by positioning the pin 22 in front of the line (dead point) X connecting the third support shaft 18 and the fourth support shaft 20, the stopper portion 23 and the urging means 24 Thus, the substantially linear form of both links 19 and 21 is maintained, and the pin 22 is moved to the rear side beyond the straight line (dead point) connecting the third support shaft 18 and the fourth support shaft 20 from the state of FIG. As a result, both links 19 and 21 are bent in a U-shape so that the shelf side plate 16a, that is, the shelf plate 16, is rotated upward together with the second support shaft 15 about the second support shaft 15. It can be done.

  Further, a release lever 26 is formed integrally with the second link 21. By manually moving the release lever 26 upward, the second link 21 is moved past the dead point. It can be rotated to move to the rear side.

  Further, with the above-described configuration, the support 5 part, the top plate mounting plate 9, that is, the top plate 10 part, the shelf board 16, and the link part 17 constitute a parallel link.

  An interlocking lever 27 is integrally fixed to the second support shaft 15 toward the front side in the support column 5, and the interlocking lever 27 swings up and down in the support column 5 by the rotation of the second support shaft 15. It comes to move.

  A rod 28 is disposed in the column 5 so as to be movable up and down, and an upper end of the rod 28 is rotatably connected to a tip portion of the interlocking lever 27.

The lower end of the rod 28 protrudes below the horizontal leg 2.
A support plate 29 is fixed to the lower side of the horizontal leg 2, and a brake mechanism 30 is provided on the support plate 29. The braking arm 31 constituting the braking mechanism 30 is provided such that its central portion is rotatably attached to a rotating shaft 32 provided horizontally in the left-right direction on the support plate 29. Further, the rotating shaft 32 is disposed in front of the axis of the rod 28.

  A locking groove 33 that opens downward is formed at the lower end of the rod 28, and a sliding pin 34 provided at the upper end of the braking arm 31 is fitted in the locking groove 33 so as to be slidable in the vertical direction. ing. A braking member 35 having a large friction coefficient is fixed to the lower end of the braking arm 31. The brake member 35 is formed in an annular shape around the shaft 36 on a shaft 36 provided horizontally in the left-right direction, and is fixed to the brake arm 31 so as not to rotate.

  A pin 37 is fixed to the rod 28 so as to be positioned above the locking groove 33, and a spring 38 is an urging means that urges the rod 28 in the pulling direction between the pin 37 and the sliding pin 34. Is installed, and the braking arm 31 is urged so as to rotate counterclockwise in FIG. Further, the brake arm 31 has a sliding pin 34 on the upper surface of the locking groove 33 as shown in FIG. 5 when the rod 28 rises to the highest level when the wheels 3a and 3b are not in contact with the floor surface. The braking member 35 is in contact with the lower side of the wheels 3a and 3b so as to protrude downward by a predetermined amount L3. Therefore, when the wheels 3a and 3b contact the floor surface FL as shown in FIG. 8 in this state, the braking arm 31 extends the spring 38 and rotates clockwise from the state shown in FIG. The force is accumulated, and the braking member 35 is pressed against the floor surface FL as shown in FIG. 8 by this accumulated force, and the movement of the table 1 is prevented by the frictional resistance with the floor surface due to this pressing force. .

  Further, in the state where the control member 35 is in contact with the floor surface FL as described above, the braking arm 31 assumes a rearward tilting posture in which the lower side than the rotation shaft 32 is located in front of the table 1 as shown in FIG. When the moving force in the direction of arrow C in FIG. 8 is applied to the table 1, the braking member 35 is further pressed into contact with the floor surface FL.

  With the above structure, the rod 28, the brake arm 31 and the like constitute an interlocking mechanism, and the link portion 17 and the release lever 26 constitute a release means. The interlocking lever 27 constitutes a mechanism for converting the rotation of the second support shaft 15 into the raising and lowering of the rod 28.

Next, the curtain plate will be described.
A curtain plate 40 is provided on the front side of the table 1, and the curtain plate 40 is vertically divided into a lower curtain plate 41 and an upper curtain plate 42.

  The lower curtain plate 41 is laid across the front surfaces of the left and right columns 5, 5A, and is fixed to the columns 5, 5A in a vertical state by appropriate means such as screws. The upper end of the lower curtain plate 41 is located at the upper end of the vertical portion 6 of the support columns 5 and 5A.

  The upper curtain plate 42 is disposed between the front sides of the inclined portions 7 of the left and right support columns 5 and 5A, and the lower end thereof is horizontally disposed in the left-right direction at the upper end of the lower curtain plate 42. The upper curtain plate 42 is provided so as to be rotatable by a rotation shaft 43, and the upper part moves in the front-rear direction around the rotation shaft 43 at the lower end thereof to open and close. Further, the upper curtain plate 42 is closed along the front surface of the inclined portion 7 in the support columns 5 and 5A. The upper curtain plate 42 may be opened and closed by providing a rotating shaft 43 on the support columns 5 and 5A side. Further, the upper curtain plate 42 has a vertical length such that its upper end is close to the back surface of the top plate 10 in the horizontal position of the top plate 10 and does not interfere with the top plate 10 in the front-rear direction. It is set to be able to move. As shown in FIG. 11, a receiving curtain 42a made of a flexible material such as cloth is provided on the back side of the upper curtain plate 42, one end of which is fixed to the upper curtain plate 42, and the other end of the support plates 5 and 5A. It is erected between and fixed, and the middle part hangs down.

  A mounting plate 44 is fixed to the back surface of the upper curtain plate 42, one end of a wire 45 as an interlocking mechanism is connected to the mounting plate 44, and the other end of the wire 45 is connected to the pin 13 a of the stopper lever 13. It is connected.

  When the upper curtain plate 42 is manually opened and rotated forward as shown in FIG. 11 from the closed state of the upper curtain plate 42 shown in FIG. 5, only the wire 45 is removed from the state of FIG. Is pulled and the stopper lever 13 maintains the state shown in FIG. 5, and when the stopper lever 13 is rotated rearward in the opened state of the upper curtain plate 42 as shown in FIG. The wire 45 is pulled backward together with the stopper lever 13, and the upper curtain plate 42 in the open state is pulled backward to close. That is, when the stopper lever 13 is operated to stand the top plate 10, the upper curtain plate 42 is closed. The stopper lever 13 closes the upper curtain plate 42 in conjunction with the standing operation of the top plate 10. The interlocking mechanism is configured.

  The other end of the wire 45 is connected to the top plate 10 side, for example, the top plate mounting plate 9, so that when the top plate 10 stands, the wire 45 is pulled backward to close the open upper curtain plate 42. Thus, the interlocking mechanism may be configured.

  The rotating shaft 11 is installed between the left and right top plate mounting plates 9 and 9, and both stopper levers 13 and 13 provided on the both support columns 5 and 5 </ b> A are fixed to the rotating shaft 11, and the second support shaft. 15 is installed between the left and right support columns 5 and 5A, and both shelf side plates 16a and 16a and both interlocking levers 27 and 27 are fixed to the second support shaft 15, and the fourth support shaft 20 is connected to both shelf side plates. The second links 21 and 21 provided on the shelf side plates 16a and 16a side are fixed to the bridges 16a and 16a.

  Therefore, the top plate 10 can be tilted by operating one of the pair of operation levers 12, 12 provided on the left and right sides of the table 1, and the pair of release levers 26, 26 provided on the left and right sides of the table 1. Is operated to release the toggle mechanism of the left and right link parts 17 and 17 and rotate the shelf plate 16 upward to release the brakes of the brake mechanisms 30 and 30 on both pillars 5 and 5A side. Can be done.

Next, the operation of the embodiment will be described.
First, the support columns 5 and 5A will be described.

  Since the lower side of the support columns 5 and 5A is positioned in front of the lateral legs 2 and 2A and is erected in a vertical state, the penetrating pipe 4 installed between the support columns 5 and 5A is disposed in front and the lower limb space E Therefore, it is possible to prevent the seated person's feet from hitting the penetrating pipe 4. Further, since the depth of the lower limb space E is large as described above, the chair can be stored deeply in the lower part of the table 1, and a wide passage for the rear of the chair when the chair is not seated can be secured. In other words, the top plate surface can be widened by increasing the length of the top plate 10 in the front-rear direction. Furthermore, the space on the side of the lower side of the top plate on the seating side is widened, so that the seated person can easily enter and exit.

  Further, even if the support columns 5 and 5A are positioned forward in this way, the upper portions of the support columns 5 and 5A are inclined upward toward the seating side, and the rotation shaft 8 of the top plate 10 is provided on the upper portion. Therefore, even if the top plate 10 is raised to the front as shown in FIG. 9, the center of gravity of the standing top plate 10 can be placed closer to the center of the table 1 than the vertical portion 6 of the columns 5, 5A. Stability can be secured. Therefore, it is possible to prevent the table 1 from falling to the front side when the table 10 is moved upright. Further, since the rotary shaft 8 is positioned near the center of the top plate 10 in the front-rear direction, the top plate 10 is balanced in the front-rear direction, and the top plate 10 can be lightly tilted with a small force. Furthermore, since the standing state of the top plate 10 is inclined upward to the seating side, when the upper end portion of the top plate 10 is pushed forward by hand, the pushing force acts downward and the pushing movement is easy. In addition, the height of the top plate 10 is lower than that of the upright configuration, and even a small woman can easily push and move.

Next, braking by the braking member 35 and its release operation will be described.
As shown in FIGS. 5 and 6, when the top plate 10 is in the horizontal posture and the pin 13a is locked in the locking groove 14a, the horizontal posture of the top plate 10 is locked.

  Further, when the link portion 17 that connects the top plate mounting plate 9 and the shelf plate 16 is in the state of FIGS. 5 and 7, the pin 22 is located in front of the dead center X, and the second link 21 is Since the first link 19 is biased forward by the spring 24 in contact with the stopper portion 23, the top board 10 and the shelf board 16 are integrated, and the shelf board 16 is held in a horizontal state. Yes.

  When the shelf plate 16, that is, the shelf side plate 16 a is in a horizontal state, the rod 28 is raised as shown in FIG. 5 by the interlocking lever 27, and is installed between the pin 37 of the rod 28 and the pin 34 of the braking arm 31. The braking arm 31 is urged counterclockwise in FIG. At this time, when it is assumed that the wheel 3a is not in contact with the floor surface FL, the braking member 35 is set to protrude downward from the lower surface of the wheel 3a as shown in FIG. As shown, when the wheel 3a is actually placed in contact with the floor surface FL, the braking member 35 is pressed against the floor surface FL by the tensile force (biasing load) of the spring 38, and the braking member 35 and the floor surface are Friction resistance can be generated between FL.

  Therefore, the movement of the table 1 can be prevented by the braking member 35 by setting the tensile load of the spring 38 so that the frictional resistance is set to a value that does not cause the table 1 to move carelessly.

  Next, a description will be given of a case where the table is moved and stored while the table top 10 is erected from the use state of the table.

  From the state shown in FIG. 5, the operation lever 12 is manually moved upward to remove the pin 13a from the locking groove 14a, and the top plate 10 is manually moved around the first support shaft 8 so that the rear side of the top plate 10 is As shown in FIG. 9, it is erected and rotated forward so as to rise. After the standing, when the hand is released from the operation lever 12, the pin 13a is engaged with the locking groove 14b by the urging force of the spring 13c, and the standing state of the top plate 10 is locked.

  When the top plate 10 stands in this manner, the shelf plate 16 rotates together with the second support shaft 15 by the parallel link mechanism including the support column 5, the top plate attachment plate 9, the shelf plate 16, and the link portion 17, and the second support shaft 15 is rotated. 15, the interlocking lever 27 rotates downward about the second support shaft 15. The rod 28 is lowered as shown in FIG. 9 by the downward rotation of the interlocking lever 27, and the pin 34 of the braking arm 31 is pushed downward by the upper end of the locking groove 33 formed in the rod 28. As a result, the braking arm 31 rotates about the rotation shaft 32 as shown in FIG. 9, the braking member 35 is separated upward from the floor surface FL, and the braking is released, and the table 1 is easily moved by the wheels 3a and 3b. Can move.

  Next, from the standing state of the top plate 10 shown in FIG. 9, when the table 1 is arranged at a predetermined use place and the top plate 10 is brought down to the horizontal posture in the use state as shown in FIG. The plate 16 is also in a horizontal state, whereby the second support shaft 15 rotates clockwise from the state shown in FIG. 9, and the interlocking lever 27 rotates upward as shown in FIG. As the interlocking lever 27 rotates, the rod 28 rises as shown in FIG. 5, and the locking groove 33 and the pin 37 formed in the rod 28 also rise. As the pin 37 rises, the braking arm 31 rotates counterclockwise about the rotation shaft 32 via a spring 38 provided between the pin 37 and the pin 34 of the braking arm 31, and the braking member 35 moves to the floor surface. Touch the FL. Since the rod 28 is set to further rise from the state in which the braking member 35 is in contact with the floor surface FL, the pin 37 is further raised by the rise of the rod 28 and the spring 38 is stretched, as shown in FIG. As shown, a gap 33 a is generated between the pin 34 and the upper end surface of the locking groove 33.

  When the spring 38 is stretched as described above, a predetermined tensile force is applied to the pin 34 due to the spring load, and a predetermined pressure contact is applied between the braking member 35 and the floor surface FL corresponding to this tensile force. Force acts. Therefore, the movement of the table 1 is prevented by this pressure contact force, and the table 1 can be stopped and held at a fixed position.

  This braking operation is performed without raising the wheels 3a, 3b from the floor surface FL, that is, without lifting the table 1 from the floor surface FL. Can be easily done with light force.

  Further, in the above-described braking state, the braking arm 31 is in a backward tilted posture, so that when the moving force acts in the direction of arrow C in FIG. 8, the braking member 35 is further pressed so as to bite into the floor surface FL. An action occurs to further prevent the table 1 from moving.

Next, braking by the shelf board 16 and its release operation will be described.
In the horizontal position of the top plate 10 shown in FIG. And the second link 21 is rotated counterclockwise in FIGS. 5 and 7 about the fourth support shaft 20, and the pin 22 is moved to the right from the dead point X in FIG. In this state, the rear side (the release lever 26 side) of the shelf board 16 is pushed up by hand, and the shelf board 16 is rotated together with the second spindle 15 around the second spindle 15. As the second support shaft 15 rotates counterclockwise, the interlock lever 27 rotates counterclockwise about the second support shaft 15 and the rod 28 descends. The lowering of the rod 28 causes the braking arm 31 to rotate clockwise about the rotation shaft 32 as described above, and the braking member 35 is separated upward from the floor surface FL. Thereby, the table 1 can be moved by the wheels 3a and 3b while the top plate 10 is in the horizontal posture, and the table 1 can be finely moved to easily align with the adjacent table.

  Next, after the table is aligned, when the hand is released from the shelf plate 16, the shelf plate 16 returns to the horizontal posture due to the weight of the shelf plate 16 and the urging force of the spring 24, and the pin 22 is dead. The state returns to the state of FIG. 7 beyond the point X, and the horizontal posture of the shelf board 16 is locked. When the shelf plate 16 returns to the horizontal posture, the rod 28 rises, and the braking member 35 is pressed against the floor surface FL as described above to prevent the table 1 from moving.

  From the above, the shelf board 16 constitutes a temporary release means for temporarily releasing the braking state of the table 1.

  In addition, as described above, the braking member 35 is pressed against the floor surface FL by the urging force of the spring 38. Therefore, when the floor surface FL is uneven, for example, the floor surface on which the braking member 35 is located is another surface. If it is concave from the floor, the braking member 35 is lowered to the bottom surface of the concave by the urging force of the spring 38, and if it is convex, the spring 38 is extended to raise the braking member 35 to the convex top surface and press-contact. Even if the floor surface is uneven, the braking member 35 is surely pressed against the floor surface, and reliable braking can be performed.

Next, the operation of the curtain plate 40 will be described.
When the table 10 is used with the table 10 in the horizontal position, the presence of the lower curtain 41 and the upper curtain 42 in the curtain 40 prevents the seated person's feet from being seen by, for example, the person seated on the opposite side. Can be shielded.

  Further, in the state of using the table of the horizontal position of the top board 10, the personal computer 50 is installed on the top board 10 as shown in FIG. 11, and the wiring 51 and the parts 52 are utilized using the lower space of the top board 10. In the case of arrangement, the upper curtain plate 42 is manually opened as shown in FIG. 11, and the wiring 51 and the component 52 are housed and held on the receiving curtain 42a in the space on the back side of the upper curtain plate 42.

  Next, when the table 10 is stood up and the table is stowed from the state in which the upper curtain plate 42 is opened as described above, the personal computer 50 is first removed from the top plate 10 and the wiring 51 and components 52 are also removed. . Next, when the operation lever 12 is rotated upward as a pre-operation for raising the top plate 10, the stopper lever 13 provided integrally therewith is rotated backward about the rotation shaft 11 and connected thereto. The wire 45 is pulled rearward, the upper curtain plate 42 connected to the wire 45 is pulled in the closing direction, and the upper curtain plate 42 rotates around the rotation shaft 43 and is closed as shown in FIG. . Thereafter, the top plate 10 is raised.

  As described above, the upper curtain 42 is closed before the top plate 10 is raised by the operation lever 12 that is operated before the top plate 10 is raised, that is, in conjunction with the rising operation of the top plate 10. It is possible to prevent the upper curtain plate 42 from being damaged due to these interferences by raising the top plate 10 while the curtain plate 42 is forgotten to be closed and opened.

12 to 15 show a second embodiment.
The second embodiment shows another example of the braking mechanism 30 in the first embodiment.

  In FIG. 13, a pin hole 60 is formed at the lower end of the rod 28 similar to that of the first embodiment. The pin hole 60 and the pin hole 62 formed at one end of the operating lever 61 are made to coincide with each other. A horizontal pin 63 is inserted through 62, and the rod 28 and the operating lever 61 are rotatably connected by the pin 63. The actuating lever 61 descends from the pin hole 62 and bends forward from its descending portion to form a dogleg shape, and a pin hole 64 is formed at the descending portion (bending portion). A pin 65 is inserted into the pin hole 64, the pin 65 is fixed to the support plate 29, and an operation lever 61 is provided to be rotatable about the pin 65. Further, a locking piece 66 is integrally provided on the rear surface of the operating lever 61.

  A brake arm 67 is provided at the lower end of the rod 28 by rotatably fitting a pin hole 68 formed in the rod 28 to the pin 63. The braking arm 67 includes a first arm portion 69 that protrudes forward from the pin hole 68 portion, and a second arm portion 70 that protrudes forward and downward from the pin hole 68 portion, and the rear surface of the second arm portion 70. 70a engages with the front surface of the locking piece 66 formed on the operating lever 61. Further, a braking member 35 similar to the braking member 35 of the first embodiment is fixed to the lower end portion of the second arm portion 70.

  Further, the front piece 61 a of the operating lever 61 projects below the first arm portion 69 of the braking arm 67 and between both side plates forming the braking arm 67. A tension spring 74 as a biasing member is provided between a pin 72 inserted into a hole 71 formed in the front portion of the first arm portion 69 and a hole 73 formed in the front portion of the front piece 61a of the operating lever 61. The first arm portion 69 of the braking arm 67 is always pulled toward the front piece 61 a side of the operating lever 61 by this spring load.

  Since other structures are the same as those of the first embodiment, the same parts as those described above are denoted by the same reference numerals as those described above, and the description thereof is omitted.

Next, the operation of the second embodiment will be described.
As shown in FIG. 12, when the top plate 10 and the shelf plate 16 are in the horizontal position, the rod 28 is raised as in the first embodiment, and the braking member 35 is lowered as shown in FIGS. Is in a state.

  From this state, when the top plate 10 is erected as in the first embodiment or the shelf plate 16 is temporarily moved up, the rod 28 is lowered and the pin 63 is lowered as shown in FIG. As the pin 63 descends, the operating lever 61 rotates about the pin 65 in the clockwise direction in the figure, and the brake arm 67 is also pushed downward by the pin 63, and the timepiece shown in the figure around the contact point on the upper surface of the pin 65. And the braking member 35 is separated upward from the floor surface FL as shown in FIG. Therefore, the table 1 can be moved by the wheels 3a and 3b.

  Next, when the top plate 10 is laid down in the horizontal posture from the state of FIG. 15 or the shelf plate 16 that has been temporarily raised is returned to the horizontal posture, the rod 28 rises in the same manner as in the first embodiment. To do.

  When the rod 28 is raised, the pin 63 is also raised as shown in FIG. 14, the operating lever 61 is rotated counterclockwise about the pin 65, and the braking arm 67 is also centered on the contact point on the upper surface of the pin 65. As shown in FIG. 14, the brake member 35 is lowered. At this time, the braking arm 67 tries to rotate backward by the urging force of the spring 74, but the rear surface 70a of the braking arm 67 hits the locking piece 66 of the operating lever 61, and the state of FIG. In this state, the brake member 35 protrudes downward from the lower surface of the wheel 3a by a predetermined amount L3 in a state where the wheels 3a and 3b are not in contact with the floor surface FL.

  Accordingly, when the wheels 3a and 3b are brought into contact with the floor surface FL in this state, the braking arm 67 is rotated together with the braking member 35 in the clockwise direction in FIG. 14 around the pin 63, and the pin 72 of the braking arm 67 is Move upward from position 14. At this time, since the operating lever 61 is in a non-moving state, the spring 74 is extended by the upward movement of the pin 72, and a force for pulling the braking arm 67 downward is accumulated in the spring 74. Therefore, the braking member 35 is pressed against the floor surface FL by the accumulated force, and the movement of the table 1 is prevented by the frictional resistance with the floor surface due to the pressing force.

  Actually, since the braking member 35 is lowered while the wheels 3a and 3b are in contact with the floor surface FL, the braking member 35 comes into contact with the floor surface FL, and then the spring load is applied to perform braking. The member 35 is pressed against the floor surface FL.

  In the second embodiment, the same effect as in the first embodiment can be obtained.

16 and 17 show the third embodiment.
The third embodiment shows still another example of the braking mechanism 30 in the first embodiment. Compared with the first embodiment, the braking member 35 contacts the floor surface when the rod 28 is lowered, and the braking member 35 is raised when the rod 28 is raised. 35 is configured to be separated upward from the floor surface.

  In the third embodiment, for example, the rod 28 rises when the top plate 10 or the shelf plate 16 in the above-described embodiment is rotated in the standing direction. For example, the interlocking lever 27 in the embodiment is protruded from the second support shaft 15 to the right side of the figure, and the rod 28 is connected to the interlocking lever 27.

  As shown in FIGS. 16 and 17, the braking mechanism 30 is provided with an operating lever 78 and a braking arm 79 rotatably on a pin 77 provided on the support plate 29, and an arm 78 a is provided below the operating lever 78. The arm 79a protrudes in one direction above the braking arm 79, a spring 80 is installed between the arms 78a and 79a, and a locking piece 81 is provided on the rear side of the braking arm 79. The rear surface of the operating lever 78 is locked to the stop piece 81.

Other structures are the same as those of the first embodiment.
When the top plate 10 and the shelf plate 16 are in the standing posture, the rod 28 moves upward, and the operating lever 78 moves upward about the pin 77 as shown in FIG. 17, and the braking member 35 moves from the floor surface FL. The table 1 can be moved apart upward.

  When the top plate 10 or the shelf plate 16 is brought into a horizontal posture from the above state, the rod 28 is lowered as shown in FIG. 16, and the operating lever 78 is moved downward as shown in FIG. At this time, the operating lever 78 hits the locking piece 81, and the braking member 35 protrudes downward by a predetermined amount L3 from the lower surface of the wheel 3a when the wheel 3a is not in contact with the floor surface FL.

  Therefore, when the wheels 3a and 3b are brought into contact with the floor surface FL in this state, the braking arm 79 is rotated together with the braking member 35 about the pin 77 in the clockwise direction in FIG. 16, and the arm 79a of the braking arm 79 is shown in FIG. Rotate upward from position 16. At this time, since the arm 78a of the operating lever 78 is in a non-moving state, the spring 80 is extended by the upward movement of the arm 79a, and a force for pulling the arm 79a downward is accumulated in the spring 80. Therefore, the braking member 35 is pressed against the floor surface FL by the accumulated force, and the movement of the table 1 is prevented by the frictional resistance with the floor surface due to the pressing force.

  Actually, since the braking member 35 is lowered while the wheels 3a and 3b are in contact with the floor surface FL, the braking member 35 comes into contact with the floor surface FL, and then the spring load is applied to perform braking. The member is pressed against the floor surface FL.

In the third embodiment, the same effect as in the first embodiment can be obtained.
Furthermore, in the third embodiment, when the top plate 10 and the shelf plate 16 are erected, the rod 28 is pulled upward, so that the rod 28 can be formed of a flexible wire, and the rod 28 is made of a metal bar. It can be formed at a lower cost than what is formed.

18 to 22 show a fourth embodiment.
The fourth embodiment shows still another example of the braking mechanism 30 in the first embodiment. As in the first embodiment, the braking member 35 contacts the floor surface when the rod 28 is raised, and the braking member when the rod 28 is lowered. 35 is spaced apart from the floor surface, and the braking arm 31 of the first embodiment is provided in a pair of C-shapes in front and rear with respect to one rod 28.

  A support plate 83 as shown in FIG. 20 is fixed to the lower side of the horizontal leg 2 as in the above embodiment, and a window 83b is formed on the upper plate 83a. The lower portion of the rod 28 similar to that of the first embodiment is disposed in the window 83b, and the upper end of the connecting member 84 is fixed to the lower end of the rod 28. The lower portion of the connecting member 84 is bent as shown in the figure, and a shaft hole 85 is formed at the lower end thereof.

  A front operation lever 86 and a rear operation lever 87 are arranged inside the support plate 83, and a shaft hole 88 is formed on the base side of both the operation levers 86 and 87. A pin 89 is inserted into the shaft hole 85 and the shaft holes 88 and 88, and both operating levers 86 and 87 are rotatably provided on the pin 89. Further, a shaft hole 90 is formed in an intermediate portion of the front operating lever 86, and a pin 92 is inserted into the shaft hole 90 and a shaft hole 91 formed in front of the pin 89 in the support plate 83. The front operating lever 86 rotates about the pin 92.

  Further, a shaft hole 93 is formed in an intermediate portion of the rear side operation lever 87, and the shaft hole 93 and a long hole-shaped shaft hole 94 formed on the rear side of the pin 89 in the support plate 83 are formed. The pin 95 is inserted, and the rear operating lever 87 is rotated around the pin 95. The elongated hole-shaped shaft hole 94 is long in the front-rear direction and is inclined so that the rear side is slightly lowered.

  Therefore, when the rod 28 is raised, the front operating lever 86 is pivoted about the pin 92 as shown in FIGS. 18 and 19, and the rear operating lever 87 is centered on the pin 95. As shown in FIGS. 18 and 19, the actuator is turned upright and both the operating levers 86 and 87 are formed in a square shape having a small inner angle.

  When the rod 28 is lowered, the front operating lever 86 rotates around the pin 92 as shown in FIGS. 21 and 22, and the rear operating lever 87 has the pin 95 thereof. While moving backward along the elongated hole-shaped shaft hole 94, the pin 95 is rotated around the pin 95 to be in a lying state, and both the operating levers 86 and 87 are formed in an inverted C shape as shown in FIGS. It is supposed to be.

  A front braking arm 96 is disposed outside the front operating lever 86, and a rear braking arm 97 is disposed outside the rear operating lever 87.

  Shaft holes 98 and 99 are formed in the base portions of the front braking arm 96 and the rear braking arm 97, respectively. The shaft holes 98 and 99 are rotatably fitted to the pins 89, and both braking arms 96 are fitted. , 97 can rotate in the vertical direction around the pin 89.

  A brake member 35 similar to that of the above embodiment is fixed to the front portions of the front brake arm 96 and the rear brake arm 97.

  Further, the front braking arm 96 has a pin 100 fixedly positioned at the center thereof and at the top of the front operating lever 86.

  Further, the rear braking arm 97 has a pin 101 fixedly positioned at the center and on the upper portion of the rear operating lever 87.

  In addition, a pin 102 is provided at the front portion of the front operation lever 86, and a pin 103 is provided at the front portion of the rear operation lever 87.

  A spring 104 as an urging member for pulling the pins 100 and 102 is laid between the pins 100 and 102, and an urging means for pulling the pins 101 and 103 between them. A spring 105 is installed.

Other structures are the same as those in the first embodiment.
Next, the operation of the fourth embodiment will be described.

  When the top plate 10 and the shelf plate 16 are in the horizontal posture, the rod 28 is raised as in the first embodiment, and the braking member 35 is lowered as shown in FIGS.

  From this state, when the top plate 10 is erected as in the above embodiment or the shelf plate 16 is temporarily moved up, the rod 28 is lowered and the pin 89 is lowered as shown in FIGS. As the pin 89 descends, the front operating lever 86 rotates about the pin 92 in the clockwise direction in the drawing, and the front braking arm 96 has its lower surface in contact with the pin 92, so that the pin 92 portion is It turns clockwise as a center, and it will be in the state shown in FIG.21 and FIG.22.

  Further, as the pin 89 descends, the rear operating lever 87 rotates counterclockwise around the pin 95 while the pin 95 moves rearwardly in the elongated hole 94 and the rear braking arm 97. Since the lower surface thereof is in contact with the pin 93, it rotates counterclockwise around the pin 93, resulting in the state shown in FIGS. As a result, the two operating levers 86 and 87 and the two braking arms 96 and 97 have a reverse C shape, and the two braking members 35 and 35 are separated upward from the floor surface FL. Therefore, the table 1 can be moved by the wheels 3a and 3b.

  Next, when the top plate 10 is laid down in the horizontal posture from the state of FIGS. 21 and 22 or the shelf plate 16 that has been temporarily raised is returned to the horizontal posture, the rod 28 rises in the same manner as in the first embodiment. To do.

  When the rod 28 is lifted, the pin 89 is also lifted as shown in FIGS. 18 and 19, the front operating lever 86 is rotated counterclockwise about the pin 92, and the rear operating lever 87 has a long pin 95. It rotates clockwise around the pin 95 while moving forward in the hole-shaped shaft hole 94.

  The front actuating lever 86 pivots the front braking arm 96 counterclockwise about the pin 89 via the spring 104, and the rear actuating lever 87 pivots the spring 105 via the spring 105. Then, the rear braking arm 97 rotates clockwise around the pin 89, and the front and rear actuation levers 86 and 87 and the front and rear braking arms 96 and 97 are shaped like a letter C as shown in FIGS. Thus, both braking members 35 and 35 are moved down to the lowest.

  As shown in FIG. 19, when the wheels 3a and 3b are not in contact with the floor surface FL, the lowermost positions of the braking members 35 and 35 protrude by a predetermined amount L3 from the lower surfaces of the wheels 3a and 3b. Is set to

  Actually, since the top plate 10 is tilted to the horizontal posture while the wheels 3a and 3b are in contact with the floor surface FL, both the braking arms 96 and 97 are pushed upward by L3. When the lever L3 is pushed up, both the operating levers 86 and 87 are placed at the positions shown in FIGS. 18 and 19, so that the springs 104 and 105 are extended by L3 and the pulling force is accumulated. Both braking members 35, 35 are pressed against the floor surface FL, and the movement of the table 1 is prevented by the frictional force with the floor surface due to this pressing force.

Therefore, also in the present embodiment, the same effect as in the first embodiment can be exhibited.
Further, in the fourth embodiment, at the time of braking, the pair of braking arms 96 and 97 are arranged in a letter C shape, so that the front braking member 35 is moved to the floor surface with respect to the forward moving force of the table. It acts to bite in, and the rear braking member 35 acts to bite into the floor against the rearward movement force of the table, so that the table can be reliably prevented from moving forward and backward. .

23 to 25 show a fifth embodiment.
The fifth embodiment shows another example of an interlocking mechanism that closes the upper curtain plate 42 shown in the first embodiment in conjunction with the top plate 10.

  One interlocking link 110 is rotatably provided by a pin 111 on the top plate mounting plate 9 fixed to the top plate 10, and the other interlocking link 112 is rotatably provided by a pin 113 on the back surface of the upper curtain plate 42. In addition, both the interlocking links 110 and 112 are rotatably connected by a pin 114.

  When the upper curtain plate 42 is closed as shown in FIG. 23, the two interlocking links 110 and 112 are refracted in a dogleg shape, and when the upper curtain plate 42 is opened as shown in FIG. When the links 110 and 112 are linear to maintain the opened state of the upper curtain plate 42, and when the top plate 10 is raised from the opened state of the upper curtain plate 42 as shown in FIG. The linear interlocking links 110 and 112 are pulled rearward following the upright movement, and the upper curtain 42 is pulled rearward and closed.

Other structures are the same as those of the first embodiment.
Also in the fifth embodiment, as in the first embodiment, the upper curtain plate 42 is closed before the top plate 10 is raised in conjunction with the rising operation of the top plate 10, so that the upper curtain plate 42 is forgotten to be closed. It is possible to prevent the upper curtain plate 42 from being damaged by the interference by standing the top plate 10 in the open state.

  The interlocking mechanism of the fifth embodiment can be applied to the tables of the second to fourth embodiments.

FIG. 26 shows a sixth embodiment.
In the sixth embodiment, the inventions of the first to fifth embodiments are applied to a table capable of stacking a large number of tables in parallel.

  In the first to fifth embodiments, the column 5 is erected on the horizontal legs 2 and 2A. However, in the sixth embodiment, the horizontal side surface (inner surface) of the column 5 is used without using the horizontal legs 2 and 2A. Alternatively, a slanted leg 120 inclined downward toward the seating side is fixed to the outer side) in parallel with the column 5 so that the column 5 is supported.

  That is, as in the above-described embodiment, the inclined leg 120 is disposed outside the support column 5 having the vertical portion 6 and the inclined portion 7, and the upper portion 121 of the inclined leg 120 is fixed to the support column 5.

  Further, a wheel 3 a similar to that of the above embodiment is provided at the lower part of the support column 5, and a wheel 3 b is provided at the lower part of the oblique leg 120. A braking mechanism 30 similar to the above may be provided below the support column 5. In this case, a rod 28 similar to the above that operates the braking mechanism 30 is provided in the support column 5, and the rod 28 is moved up and down by the rotation of the top plate 10 and the shelf plate 16 in the same manner as in the above embodiment. Thus, the braking mechanism 30 is operated. These mechanisms are omitted in the figure.

  In the sixth embodiment, in addition to the same operations and effects as the previous embodiments, when storing a large number of tables stacked in the front-rear direction, the table on the front side in the state where the top plate 10 is raised, By stacking the rear table with the top plate 10 upright, the support columns 5 and 5 of the front and rear tables are stacked in parallel in the front and back, and the oblique legs 120 and 120 of the front and rear tables are stacked in parallel in the front and back. Thus, a so-called parallel stack is formed, and the stacked tables are stacked without shifting in the left-right direction, and the storage space is reduced.

FIG. 27 shows a seventh embodiment.
The seventh embodiment is a modification of the curtain shown in the first and fifth embodiments.

  The curtain plate of the seventh embodiment is divided into a lower curtain plate 41 and an upper curtain plate 42 in the same manner as in the first embodiment, and the upper curtain plate 42 is fixed to the inclined portion 7 of the support column 5 so that the lower curtain. The lower end of the plate 41 is rotatably connected to the vertical portion 6 of the support column 5 by a rotating shaft 43a disposed horizontally in the left-right direction, so that the lower curtain plate 41 can be opened and closed in the front-rear direction around the lower end. It is provided.

  Further, the lower curtain plate 41 may be connected by an interlocking mechanism that closes the top plate by the rotation of the top plate 10 in the upright direction, similar to the first or fifth embodiment. You may make it open and close manually, without providing.

Other structures are the same as those in the above embodiment.
In the seventh embodiment, the same effect as the curtain of the first embodiment is obtained, and the lower curtain 41 is opened, so that wiring and objects are accommodated in the lower curtain 41. At this time, the top plate 10 does not become a hindrance as compared with the case where it is stored in the upper curtain 42, and the storing work becomes easy.

FIG. 28 shows an eighth embodiment.
The eighth embodiment is a further modification of the curtain plate shown in the first and fifth embodiments.

  The curtain plate of the eighth embodiment is divided into a lower curtain plate 41 and an upper curtain plate 42 in the same manner as in the first embodiment, and the lower end of the lower curtain plate 41 is set to the vertical portion 6 of the column 5 in the left-right direction. The lower curtain plate 41 is connected to be rotatable by a rotating shaft 43a disposed horizontally on the lower shaft 41 so that the lower curtain plate 41 can be opened and closed in the front-rear direction around the lower end thereof. The upper curtain plate 42 is rotatably connected to the upper end portion of the vertical portion 6 by a rotating shaft 43 disposed horizontally in the left-right direction via a mounting arm 122 so that the upper curtain plate 42 can be opened and closed in the front-rear direction around the lower end. It is provided.

  Further, the lower curtain plate 41 and the upper curtain plate 42 may be manually opened and closed, respectively, and the top plate 10 is rotated in the standing direction by the interlocking mechanism with the top plate 10 as described above. Both curtain plates 41 and 42 may be closed.

Other structures are the same as those in the above embodiment.
In the eighth embodiment, the same effects as in the first embodiment can be obtained, and the upper and lower curtain plates 41 and 42 can be opened to widen the storage space for wiring and objects.

  In Examples 7 and 8, the lower support portion of the column 5 was omitted.

The front view of the table which shows Example 1 of this invention. The side view of FIG. The rear view of FIG. The bottom view of FIG. The sectional side view which shows the interlocking mechanism etc. in this invention. The rear view in FIG. The figure which shows the link part which is a temporary cancellation | release mechanism in FIG. The figure which made the braking member contact the floor surface from the state of FIG. FIG. 6 is a side sectional view of the state in which the top plate is raised from the state of FIG. 5. The perspective view which isolate | separated the components of the braking mechanism of FIG. The side view of the state which opened the upper curtain shown in FIG. The side sectional view which showed Example 2 of this invention and showed the principal part with the continuous line. The perspective view which isolate | separated the components of the braking mechanism in FIG. The figure which lowered | hung the braking member of the braking mechanism in FIG. The figure which raised the braking member from the state of FIG. The figure which shows Example 3 of this invention and which lowered | hung the braking member. The figure which raised the braking member from the state of FIG. The figure which shows Example 4 of this invention and which lowered | hung the braking member. The enlarged view of the braking mechanism of FIG. The perspective view which isolate | separated the components of the braking mechanism of FIG. The figure which raised the braking member from the state of FIG. FIG. 22 is an enlarged view of the braking mechanism of FIG. 21. The figure of the state which closed the upper curtain in Example 5 which shows the opening / closing mechanism of the upper curtain in this invention. The figure of the state which opened the upper curtain from the state of FIG. The figure which raised the top plate from the state of FIG. 24, and closed the upper curtain. The side view which shows Example 6 of this invention. The side view which shows Example 7 of this invention. The side view which shows Example 8 of this invention. The side view which shows the conventional table.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Table 2, 2A Horizontal leg 3a, 3b Caster 5, 5A Support | pillar 8 1st spindle 10 Top plate 15 2nd spindle 16 Shelf board 17 Release mechanism (link part)
19 First link 21 Second link 28 Interlocking mechanism (rod)
35 Braking member

Claims (3)

  In a table provided with wheels, a shelf plate that is interlocked with the top plate and that tilts up and down, a braking member that contacts and separates from the floor, and the braking member by rotating the shelf plate to a horizontal posture Is provided with an interlocking mechanism that contacts the floor surface and separates the braking member from the floor surface by rotating the shelf board in the standing direction, and a release mechanism that releases the interlocking between the top board and the shelf board. A braking device for a table, wherein only a shelf board can be rotated in a standing direction by a release operation.   A top plate is provided at the top of the column so that the top plate can be tilted up and down, a shelf plate is arranged on the lower side of the top plate, one end of the shelf plate is connected to a support shaft that is rotatably provided on the column, Are connected to the top plate by a link portion, and the support shaft is provided with a rod that moves up and down by the rotation of the support shaft, and a brake member is provided at a lower portion of the rod, and the shelf plate is rotated by rotating in the standing direction. Is raised and separated from the floor surface, and the braking member is lowered by the horizontal rotation of the shelf board so as to come into contact with the floor surface, and the link part is formed by a toggle mechanism to form the shelf board and the ceiling. A table braking device characterized in that the plate mounting plate is integrally interlocked, or the interlock is released so that only the shelf plate can be rotated.   The toggle mechanism includes a first link rotatably provided on the top plate side, a second link rotatably provided on the shelf plate side, a pin connecting the both links, and the pin exceeding the dead point. The table braking device according to claim 2, wherein the table brake device is configured to be locked by moving to one side, and further provided with release means for rotating in the release direction.

Images