JP2018057637A - desk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a desk that can reliably regulate and release movement of a wheel, such as a caster that is set to a plurality of positions.SOLUTION: A desk 1 (1A) includes: a top board 2 (2A); leg parts 3 (3A) for supporting the top board 2 (2A); a plurality of wheels 4 movably supporting the leg parts 3 (3A); an operation mechanism 5 for regulating circling movement of each wheel 4 and rotating movement of each wheel 4, by a single operation; and operating wires W1 to W4 for transmitting operation of the operation mechanism 5 to each wheel 4.SELECTED DRAWING: Figure 1

Description

  The present embodiment relates to a desk having wheels that can be fixed so as not to move.

  Patent Document 1 proposes a table having four casters provided at the four corner tips of the leg frame and operation handles for locking / unlocking the rotation of the four casters. When the table is moved, the operation handle is rotated and one cable is pulled to unlock the four casters so that the casters can be rotated. When it is desired to fix the position of the table, the operation handle is rotated in the reverse direction to return one cable so that the rotation of the four casters is locked and the table cannot be moved.

JP 2014-195517 A

  In the conventional table described above, it is necessary to perform unlocking and locking operations of the four casters by rotating or rotating the operation lever to pull or return one cable. In addition, the operation lever has a structure that pulls four casters arranged at the four corner tips of the leg frame from the top plate side. For this reason, every time the locks of the four casters are unlocked and the lock operation is performed, a large force is applied to one cable, and the unlocking of the casters and the lock operation are hindered. May not be possible.

  The present invention has been made in view of the above, and an object of the present invention is to provide a desk capable of reliably regulating and releasing the operation of wheels such as casters set at a plurality of locations. It is in.

  In order to achieve the above object, the desk according to claim 1 includes a deck, legs that support the deck, a plurality of wheels that movably support the legs, and a single operation, And an operation mechanism that restricts the turning motion of the wheel and the rotation motion of each wheel, and an operation wire that transmits the operation of the operation mechanism to each wheel.

  In the desk according to claim 1, since the turning motion of each wheel and the rotation motion of each wheel can be regulated by performing a single operation, the turning motion of each wheel such as a caster and each wheel Since there is no hindrance in restricting the movement of rotation, it is possible to reliably restrict and cancel the operation of the wheels set at a plurality of locations.

  In the desk according to claim 2, the operation mechanism is disposed on a back surface of the deck and includes an operation lever for performing the single operation, and each of the operation wire rods is arranged on the back surface of the deck. The lengths of the operation wire rods connected to the operation lever from the wheels to the operation lever are the same.

  In the desk according to claim 2, since the length of the operation wire is the same, the inventory management of the operation wire is easier than preparing a plurality of operation wires having different lengths, Costs can be reduced because there is no mounting error during assembly.

  In the desk of Claim 3, the said leg part is comprised with a hollow member, and each said operation wire is provided through the said leg part.

  In the desk according to claim 3, since the operation wire is passed through the leg portion which is a hollow member for protection, the operation wire can be protected by the leg portion so as not to be damaged when the desks are stacked. The operation wire does not damage the deck of the desk.

  In the desk according to claim 4, the deck has a quadrangular shape, the leg portion includes a plurality of first leg members and a plurality of second leg members, and the plurality of first leg members include The plurality of second leg members are disposed at positions within the region of the back surface of the deck, and the plurality of desks can be stacked.

  In the desk according to claim 4, since the plurality of first leg members are positioned outside the area of the back surface of the deck, when the plurality of desks are stacked, the plurality of first leg members are arranged on the lower side. Can be located outside the area of the deck of the desk located at. For this reason, a plurality of desks can be easily stacked without the plurality of first leg members interfering with each other.

  According to the present embodiment, it is possible to provide a desk that can reliably regulate and release the operation of wheels such as casters set at a plurality of locations.

1 is an exploded perspective view showing a desk according to a first embodiment of the present invention. 2 (a) is a plan view of the desk shown in FIG. 1, FIG. 2 (b) is a front view of the desk, and FIG. 2 (c) is a side view of the desk. It is a figure which shows the state in which the operation lever of the operation mechanism is located in the 1st position P1. It is a figure which shows the state in which the operation lever of the operation mechanism is located in the 2nd position P2. It is a side view which shows the example which piled up the several desk. It is a disassembled perspective view which shows the desk of 2nd Embodiment. FIG. 7A is a plan view of the desk shown in FIG. 6, FIG. 7B is a front view of the desk, and FIG. 7C is a side view of the desk. FIG. 8 is a diagram illustrating a state in which a plurality of desks illustrated in FIG. 7 are stacked. FIG. 8 is a diagram illustrating an example in which a plurality of desks illustrated in FIGS. 6 and 7 are laid out.

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

(First embodiment)
<Overall configuration of desk 1>
FIG. 1 is an exploded perspective view showing a desk according to a first embodiment of the present invention. 2 (a) is a plan view of the desk 1 shown in FIG. 1, FIG. 2 (b) is a front view of the desk 1, and FIG. 2 (c) is a side view of the desk 1. FIG.

  The desk 1 shown in FIGS. 1 and 2 can also be called a table with casters, and can be used, for example, in a conference room or classroom. The desk 1 has a deck 2, legs 3, four casters 4 as wheels, and an operation mechanism 5.

<Deck 2>
The deck 2 can also be referred to as a top board, and is a rectangular plate-like member made of, for example, metal, wood or plastic, for example, a rectangular shape. The deck 2 has a front surface (upper surface) 2B and a back surface (lower surface) 2C, and has two long side portions 6 and 7 and two short side portions 8 and 9. The two long side portions 6 and 7 have the same length, and the short side portions 8 and 9 have the same length.

<Leg 3>
The leg portion 3 shown in FIGS. 1 and 2 has two first leg members 11, 12 and two second leg members 21, 22. The first leg members 11 and 12 and the second leg members 21 and 22 are formed, for example, by bending a pipe or tube having a metal hollow having a circular cross section. The lengths of the first leg members 11 and 12 and the second leg members 21 and 22 are preferably set to be the same. The two first leg members 11 and 12 and the two second leg members 21 and 22 are fixed by welding, for example.

  As shown in FIGS. 1 and 2A, the first leg member 11 has an inner end portion 11B, an intermediate portion 11C, and a vertical portion 11D. The first leg member 12 and the first leg member 11 are symmetric. The first leg member 12 has an inner end portion 12B, an intermediate portion 12C, and a vertical portion 12D. Casters 4 are provided at the lower ends of the vertical portions 11D and 12D, respectively.

  2A, the inner end portion 11B and the intermediate portion 11C of the first leg member 11 and the inner end portion 12B and the intermediate portion 12C of the first leg member 12 are in contact with the back surface 2C of the deck 2. As shown in FIG. And fixed to the back surface 2C of the deck 2.

  The inner end portion 11B and the intermediate portion 11C of the first leg member 11 and the inner end portion 12B and the intermediate portion 12C of the first leg member 12 are formed by using the stacking packing 29 and the screw 31 shown in FIG. It is fixed to the back surface 2C.

  The stacking packing 29 is disposed between the leg 3 of the upper desk 1 and the surface 2B of the deck 2 of the lower desk 1 when a plurality of desks 1 are stacked. Thereby, the packing 29 can prevent relative movement of the upper and lower desks 1 and 1 and generation of scratches by acting as a cushioning material.

  As shown in FIGS. 1 and 2A, the inner end portion 11B of the first leg member 11 has an attachment portion 11F and is formed in an L shape. As shown in FIG. 2A, the intermediate portion 11C is disposed from the inner end portion 11B toward the corner portion 6P. The portion from the outer end portion of the intermediate portion 11C to the upper end portion of the vertical portion 11D is located outside the corner portion 6P of the long side portion 6 and the short side portion 8 of the deck 2. 2 (a) and 2 (b), the vertical portion 11D is located outside the short side portion 8 of the deck 2, and the casters 4 of the vertical portion 11D are located outside the deck 2. ing.

  Similarly, as shown in FIGS. 1 and 2 (a), the inner end portion 12B of the first leg member 12 has an attachment portion 12F and is formed in an L shape. As shown in FIG. 2A, the intermediate portion 12C is disposed from the inner end portion 12B toward the corner portion 6Q. The portion from the outer end portion of the intermediate portion 12C to the upper end portion of the vertical portion 12D is located outside the corner portion 6Q of the long side portion 6 and the short side portion 9 of the deck 2. As shown in FIGS. 2A and 2B, the vertical portion 12D is positioned outside the short side portion 9 of the deck 2, and the casters 4 of the vertical portion 12D are positioned outside the deck 2. Yes.

  On the other hand, as shown in FIGS. 1 and 2A, the second leg member 21 has an inner end portion 21B, an intermediate portion 21C, and a vertical portion 21D. Similarly, the second leg member 22 has an inner end portion 22B, an intermediate portion 22C, and a vertical portion 22D. Casters 4 are provided at the lower ends of the vertical portions 21D and 22D, respectively.

  As shown in FIGS. 1 and 2A, the inner end portion 21B of the second leg member 21 has a mounting portion 21F and is formed in an L shape. The intermediate portion 21C extends toward the long side portion 7 of the deck 2, and the portion from the outer end portion of the intermediate portion 21C to the upper end portion of the vertical portion 21D is located inside the long side portion 7 of the deck 2. And does not protrude outside the long side portion 7.

  As shown in FIGS. 1 and 2A, the second leg member 22 has a bilaterally symmetric shape with the second leg member 21. The inner end portion 22B of the second leg member 22 has a mounting portion 22F and is formed in an L shape. The intermediate portion 22C extends toward the long side portion 7 of the deck 2, and the portion from the outer end portion of the intermediate portion 22C to the upper end portion of the vertical portion 22D is located inside the long side portion 7 of the deck 2. And does not protrude outside the long side portion 7.

  The inner end portion 21B and the intermediate portion 21C of the second leg member 21 and the inner end portion 22B and the intermediate portion 22C of the second leg member 22 are fixed so as to be in contact with the back surface 2C of the deck 2, and are used for stacking. It is fixed to the back surface 2 </ b> C of the deck 2 using packing 29 and screws 31.

  The attachment part 21F of the second leg member 21, the attachment part 11F of the first leg member 11, the attachment part 12F of the first leg member 12, and the attachment part 22F of the second leg member 22 are aligned and fixed by welding.

  As each caster 4, for example, a plastic or metal, preferably a twin wheel caster can be used. Each caster 4 can be rotated around the rotation axis of the caster 4 in order to move the desk 1 forward and backward, and can be swung to change the direction of the desk 1 around the support axis of the caster 4. It is. That is, each caster 4 is capable of rotating operation for moving the desk 1 forward and backward, and turning operation for changing left and right directions. Although not shown, each caster 4 has a rotation restricting portion that restricts the operation of rotating about the rotation axis, and a direction change restricting portion that changes the direction around the support shaft of the caster 4. The rotation restricting portion stops the rotation of the caster 4 by pressing a member against the inner peripheral portion of the caster 4, for example. The rotation restriction and the direction change restriction of the four casters 4 can be simultaneously performed using the first wire W1 to the fourth wire W4 described later.

<Operation mechanism 5>
Next, the operation mechanism 5 will be described with reference to FIGS. 1 and 2A, and FIGS.

  FIG. 3 shows a state where the operation lever 40 of the operation mechanism 5 is located at the first position P1, and FIG. 4 shows a second position P2 where the operation lever 40 of the operation mechanism 5 is opposite to the first position P1. The state located at is shown.

  The first position P1 of the operation lever 40 shown in FIG. 3 is a release state in which each caster 4 shown in FIG. 1 is capable of rotating and turning, and the second position P2 of the operation lever 40 shown in FIG. FIG. 1 shows a fixed state in which each caster 4 shown in FIG. 1 regulates the rotation operation and the turning operation.

  As shown in FIGS. 1 and 3, the operation mechanism 5 includes an operation lever 40, a fixing member 41, a cover member 42, and one tension spring 43. The fixing member 41 is a plate-like metal member, and is fixed to the back surface 2 </ b> C of the deck 2 with a plurality of screws 44. The cover member 42 is formed by bending a plate-like metal member and covers the fixing member 41 from below. As shown in FIG. 1, the cover member 42 is fixed to the back surface 2 </ b> C of the deck 2 with a plurality of screws 45.

  As shown in FIGS. 1 and 2 (a), the operation lever 40 is on the back surface 2C side of the deck 2, and the tip portion of the operation lever 40 does not protrude outward from the long side portion 7 of the deck 2, It is hidden in the back surface 2C of the deck 2. Thereby, the operation lever 40 does not hit the person who uses the desk 1.

  As shown in FIG. 3, the base 46 of the operation lever 40 is attached to the fixing member 41 so as to be rotatable about the rotation shaft 47. One end of the tension spring 43 is attached to a spring attachment pin 48 of the base 46, and the other end of the tension spring 43 is attached to a spring attachment pin 49 fixed to the fixing member 41. Accordingly, in the state shown in FIG. 3, the operation lever 40 is positioned at the first position P1 against the pulling force of the tension spring 43, and the operation lever 40 is rotated about the rotation shaft portion 47 in the R direction. Then, the operation lever 40 is held at the second position P <b> 2 shown in FIG. 4 using the force of the tension spring 43.

  As shown in FIG. 3, the operation mechanism 5 has the 1st wire W1 to the 4th wire W4 as an operation wire. The operation lever 40 has one wire mounting pin 50. One end portion of the first wire W1, one end portion of the second wire W2, one end portion of the third wire W3, and one end portion of the fourth wire W4 are commonly fixed to the wire mounting pin 50 together. Yes. The first wire W1 to the fourth wire W4 are operation wires led from the respective wheels 4, and the first wire W1 to the fourth wire W4 are wire materials such as a steel wire with small expansion and contraction.

  As shown in FIGS. 1 and 3, the first wire W <b> 1 passes through the first leg member 11, and the other end portion of the first wire W <b> 1 is a rotation restriction in the caster 4 of the first leg member 11. Connected to the department and the direction change regulation department. The second wire W2 passes through the first leg member 12, and the other end of the second wire W2 is connected to the rotation restricting portion and the direction change restricting portion in the caster 4 of the first leg member 12. Yes.

  The third wire W3 passes through the second leg member 21, and the other end of the third wire W3 is connected to the rotation restricting portion and the direction change restricting portion in the caster 4 of the second leg member 21. Yes. The fourth wire W4 passes through the second leg member 22, and the other end of the fourth wire W4 is connected to the rotation restricting portion and the direction change restricting portion in the caster 4 of the second leg member 22. Yes.

  The lengths of the first wire W1 to the fourth wire W4 are set to be the same. That is, the path length from the operation lever 40 to each caster 4 is set to be the same. As a result, the lengths of the first wire W1 to the fourth wire W4 are the same, so that it is easier to manage the stock of the wire than to prepare a plurality of wires with different lengths, and there is also a mounting error during assembly. Since there is no cost reduction can be achieved.

  Further, as shown in FIG. 2, the first leg members 11 and 12 are symmetrical, and the second leg members 21 and 22 are also symmetrical. In addition, by making the lengths of the first leg members 11 and 12 and the second leg members 21 and 22 the same, the first leg members 11 and 12 and the second leg members 21 and 22 Since it can be manufactured by bending the hollow metal member having the same length, the cost can be reduced. In order to make the lengths of the first wire W1 to the fourth wire W4 the same, the first leg members 11 and 12 and the second leg members 21 and 22 are bent in an arbitrary shape.

  The first wire W1 to the fourth wire W4 are respectively passed through the first leg members 11 and 12 and the second leg members 21 and 22, so that the first wire W1 to the fourth wire W4 are connected to the first leg. It is protected by the members 11 and 12 and the second leg members 21 and 22, and is not exposed on the back surface 2C of the deck 2.

  Accordingly, as will be described later, when the plurality of desks 1 are stacked (stacked), the first wire W1 to the fourth wire W4 are connected to the first leg as compared with the case where the wire is exposed. Since it is protected by the members 11 and 12 and the second leg members 21 and 22, it is possible to reliably prevent the fourth wire W4 from being damaged, soiled or tampered with from the first wire W1.

  Conversely, it is possible to prevent the first wire W1 to the fourth wire W4 of the desk 1 positioned on the upper side from damaging the surface 2B of the deck 2 of the desk 1 positioned on the lower side.

  As shown in FIG. 3, a guide projection 72 and two positioning recesses 71 and 73 are provided at the end of the base 46 of the operation lever 40. The two positioning concave portions 71 and 73 are positioned on both sides of the guide convex portion 72.

  As shown in FIG. 3, when the operation lever 40 is in the first position P <b> 1, the spring mounting pin 49 fits into the positioning recess 71, so that the operation lever 40 rotates against the force of the tension spring 43. In such a manner, it is positioned at the first position P1.

  When the operation lever 40 is rotated in the R direction in FIG. 3, the guide convex portion 72 is guided along the spring mounting pin 49, and the operation lever 40 reaches the second position P2 shown in FIG. . In this case, the operating lever 40 is positioned at the second position P <b> 2 by the spring mounting pin 49 being fitted in the positioning recess 72. Thereby, when the operator of the desk 1 rotates the operation lever 40, a click feeling can be obtained at the first position P1 and the second position P2, respectively, and the operability of the fixing operation and the releasing operation of the caster 4 can be obtained. Can be raised.

  As shown in FIG. 3, when the operating lever 40 is in the first position P1, the operating lever 40 does not pull the fourth wire W4 from the first wire W1, and each caster 4 shown in FIG. This is the release state that enables the turning operation. As shown in FIG. 4, when the operation lever 40 is operated to the second position P2, the operation lever 40 is in a fixed state in which the casters 4 shown in FIG. And the casters 4 cannot rotate.

<Example of use of desk 1>
Next, the usage example of the desk 1 mentioned above is demonstrated.

  As shown in FIGS. 2B and 2C, the desk 1 is placed on the floor surface F. As shown in FIG. 3, the operation lever 40 is in the first position P1, and is in a released state in which each caster 4 shown in FIG. 1 is capable of rotating and turning. For this reason, each caster 4 can rotate around the rotation axis of the caster 4 in order to move the desk 1 forward and backward on the floor surface F, and the desk 1 around the support axis of the caster 4. Can be turned to change direction. Accordingly, when the operator moves the desk 1, the operator can turn and turn the desk 1 while moving the desk 1 on the floor F, and can position it reliably and easily at a desired set position. it can.

  When the desk 1 is moved and the set position of the desk 1 is determined, the operator holds the operation lever 40 of FIG. 3 and rotates it from the first position P1 in the R direction. As shown in FIG. Positioned at the second position P2. As shown in FIGS. 3 to 4, the operation lever 40 rotates in the R direction around the rotation shaft portion 47, whereby the first wire W <b> 1 to the fourth wire W <b> 4 are simultaneously pulled in the G direction shown in FIG. 4.

  Thus, by pulling the fourth wire W4 from the first wire W1 in the G direction, each caster 4 becomes a fixed state in which both rotation and turning are regulated from the rotatable and turnable open state. Thereby, since the desk 1 has controlled rotation and turning of each caster 4, it can install reliably so that it may not move to a predetermined position.

  When the operator wants to move the desk 1 again, the operator reversely operates the operation lever 40 shown in FIG. 4 in the R1 direction from the second position P2 to the first position P1 shown in FIG. As a result, each caster 4 changes from a fixed state in which both rotation and turning are restricted to an open state in which the casters 4 can rotate and turn. Thereby, the operator can turn and change the direction while moving the desk 1 on the floor surface F, and can be positioned at a desired setting position.

  A single operation of the operation lever 40 in the R direction or a single operation in the R1 direction allows simultaneous operation of the first wire W1 to the fourth wire W4 as a plurality of operation wires guided from each wheel 4. Thus, the turning movement of each wheel 4 and the rotation movement of each wheel 4 can be regulated. Therefore, compared with the case of using one conventionally used cable, the burden on each first wire W1 to the fourth wire W4 can be distributed, and a large force is applied to each first wire W1 to the fourth wire W4. It does not take. For this reason, in this desk 1, since there is no trouble in restricting the turning movement and the rotation movement of each caster 4, it is possible to reliably restrict and release the operation of the casters 4 set at a plurality of places. it can.

<Example of stacking desks 1>
FIG. 5 is a side view showing an example in which a plurality of desks 1 are stacked.

  As shown in FIG. 5, when a plurality of desks 1 are stacked, as described above, the shape of the two first leg members 11 and 12 and the shape of the two second leg members 21 and 22 Thus, the desks 1 can be stacked such that the position of the deck 2 is slightly shifted in the front-rear direction S.

  That is, as shown in FIGS. 2A and 2B, the vertical portion 11D is located outside the short side portion 8 of the deck 2, and the casters 4 are located outside the deck 2. The vertical portion 12 </ b> D is located outside the short side portion 9 of the deck 2, and the casters 4 are located outside the deck 2. Thus, as shown in FIG. 5, the vertical portions 11D and 12D of the desk 1 positioned on the upper side when stacked are more than the short side portions 8 and 9 of the deck 2 of the desk 1 positioned on the lower side. Since the vertical portions 21D and 22D of the desk 1 positioned on the upper side can be extended to the outside, the vertical portions 21D and 22D of the desk 1 positioned on the upper side can be extended outside the long side portion 7 of the deck of the desk 1 positioned on the lower side. 1 can be stored in a stacked state without shifting each other.

  In this stacked state, a stacking packing 29 is placed between the first leg members 11 and 12 and the second leg members 21 and 22 of the upper desk 1 and the surface of the deck 2 of the lower desk 1. By interposing, it is possible to prevent the first leg members 11 and 12 and the second leg members 21 and 22 of the leg 3 of the upper desk 1 from damaging the surface 2B of the lower deck 2.

(Second Embodiment)
A desk 1A according to a second embodiment of the present invention will be described with reference to FIGS.

  FIG. 6 is an exploded perspective view showing a desk 1A of the second embodiment. 7 (a) is a plan view of the desk 1A shown in FIG. 6, FIG. 7 (b) is a front view of the desk 1A, and FIG. 7 (c) is a side view of the desk 1A. However, if the components of the desk 1A shown in FIG. 6 and FIG. 7 are substantially the same as the components of the desk 1 shown in FIG. 1 and FIG. Description is omitted.

  The desk 1A shown in FIGS. 6 and 7 is different from the desk 1 shown in FIGS. 1 and 2 in that the deck 2A has a trapezoidal shape as an example of a deformed shape different from the quadrangular shape. Thus, the reason why the deck 2A is formed in a trapezoidal shape is that a different layout can be performed as compared with a square-shaped deck, for example, a rectangular deck.

  The desk 1A can also be referred to as a table with casters, and can be used by being placed in a conference room or classroom, for example. The desk 1A includes a deck 2A, legs 3A, four casters 4 as wheels, and an operation mechanism 5.

  The deck 2A has long side portions 6 and 7 and inclined short side portions 8A and 9A. Since the deck 2A has a trapezoidal shape, the shape of the leg 3A matches the shape of the deck 2A. Therefore, the shape of the leg 3 shown in FIGS. 1 and 2 is slightly different, but the structure is the same. is there.

  The leg portion 3A includes two first leg members 11A and 12A and two second leg members 21A and 22A. The first leg members 11A and 12A and the second leg members 21A and 22A are formed by bending, for example, a pipe member or a tube member having a metal hollow having a circular cross section. The lengths of the first leg members 11A and 12A and the second leg members 21A and 22A are preferably set to be the same.

  Casters 4 are provided at the lower end of the vertical portion 11D of the first leg member 11A and the lower end of 12D of the first leg member 12A, respectively. Similarly, casters 4 are provided at the lower end of the vertical portion 21D of the second leg member 21A and the lower end of 22D of the second leg member 22A, respectively. The vertical portions 11D and 12D and the vertical portions 21D and 22D are arranged in the region of the back surface 2C of the deck 2A and do not protrude outside the short side portions 8A and 9A of the deck 2A.

  FIG. 8 shows a state in which a plurality of desks 1A shown in FIG. 7 are stacked. As shown in FIG. 8, each desk 1A can be stacked such that the position of the deck 2A is slightly shifted in the front-rear direction S. The number of stacked stages of the desk 1A is preferably about three.

  FIG. 9 shows an example in which a plurality of desks 1A shown in FIGS. 6 and 7 are laid out. As shown in FIG. 9, the deck 2 </ b> A of the desk 1 </ b> A can take advantage of the trapezoidal shape and freely arrange a plurality of desks 1 </ b> A according to the content of the meeting, the class content in the classroom, and the like. The layout can be different from the rectangular deck 2.

  The desk 1 having the rectangular deck 2 shown in FIGS. 1 and 2 and the desk 1A having the trapezoidal deck 2A shown in FIGS. 6 and 7 may be combined and laid out.

  As described above, the desk 1 (1A) of the present embodiment supports the deck 2 (2A), the leg 3 (3A) that supports the deck 2 (2A), and the leg 3 (3A) movably. A plurality of casters 44 serving as wheels, and a plurality of operation wires (wires W1 to W4) respectively led from the respective casters 4 by a single operation are simultaneously operated to turn the casters 4 And an operation mechanism 5 for restricting the rotational movement of each wheel.

  Thus, by performing a single operation, a plurality of operation wires (wires W1 to W4) guided from each caster 4 are simultaneously operated, and the turning movement of each caster 4 and the rotation of each caster 4 are controlled. Can regulate movement. Therefore, compared to using a conventionally used single cable, the load on each operation wire (wires W1 to W4) can be distributed, and the single operation wire (wires W1 to W4) is large. Power is not applied. For this reason, in this desk 1 (1A), since there is no trouble in restricting the turning movement of the wheel like the caster 4 and the rotation movement of each wheel, the restriction of the movement of the wheels set at a plurality of places is not required. And release can be done reliably.

  The operation mechanism 5 includes an operation lever 40 for performing a single operation arranged on the back surface 2C of the deck 2, and each operation wire (wires W1 to W4) is connected to each caster 4 on the back surface 2C of the deck 2. The operation wires 40 are guided to the operation lever 40, and the lengths of the operation wires (the wires W1 to W4) from the casters 4 to the operation lever 40 are the same. Thereby, since the lengths of the operation wires (wires W1 to W4) are the same, the operation wires (wires W1 to W4) are compared with the case where a plurality of operation wires having different lengths are prepared. Stock management is easy, and there is no mounting error during assembly, so costs can be reduced.

  The leg 3 (3A) is configured by a protective hollow member that protects each operation wire (wires W1 to W4) through the back surface 2C of the deck 2 (2A). Thereby, since the operation wire (wires W1 to W4) is passed through the leg 3 (3A) which is a hollow member for protection, the operation wire (wires W1 to W4) is stacked with the desk 1 (1A). Sometimes, it can be protected by the leg 3 (3A) so as not to be damaged, and the operation wire (wires W1 to W4) can be prevented from damaging the deck 2 (2A) of the desk 1 (1A).

  The deck 2 shown in FIGS. 1 and 2 has a quadrangular shape, and the leg portion 3 includes a plurality of first leg members 11 and 12 and a plurality of second leg members 21 and 22, and a plurality of first legs. The leg members 11 and 12 are disposed at positions outside the area of the back surface of the deck 2, and the plurality of second leg members 21 and 22 are disposed at positions within the area of the back surface 2 </ b> C of the deck 2. Can be stacked. Thereby, since the plurality of first leg members 11 and 12 are positioned outside the region of the back surface 2C of the deck 2, when the plurality of desks 1 are stacked, the plurality of first leg members 11 and 12 are It can be located outside the area of the deck 2 of the desk 1 located on the lower side. For this reason, the plurality of desks 1 can be easily stacked without the respective first leg members 11 and 12 being in the way.

  The present invention has been described with reference to the embodiments. However, each embodiment is an example, and the scope of the invention described in the claims can be variously modified without departing from the scope of the invention. . Each embodiment of the present invention can be arbitrarily combined.

  The desk of the embodiment includes a so-called table or the like, and can be applied to various uses such as a meeting, a school, a hospital, an office, and a welfare.

  The illustrated deck 2 (2A) has a rectangular shape or a trapezoidal shape, but may have other shapes such as a regular square, an elliptical shape, a rhombus shape, or the like.

  The leg portion 3 (3A) is composed of a total of four leg members including two first leg members 11, 12 (11A, 12A) and two second leg members 21, 22 (21A, 22A). However, the present invention is not limited to this, and the leg portion can be constituted by three leg members or five or more leg members.

1 Desk 1A Desk 2 Deck 2A Deck 2B Deck surface 2C Deck back 3 Leg 3A Leg 4 Caster (Example of wheel)
5 Operation Mechanism 11 First Leg Member 12 First Leg Member 21 Second Leg Member 22 Second Leg Member 40 Operation Lever W1 First Wire (Operation Wire)
W2 2nd wire (wire for operation)
W3 3rd wire (wire for operation)
W4 4th wire (wire for operation)

Claims (4)

The deck,
Legs that support the deck;
A plurality of wheels movably supporting the legs,
An operation mechanism that regulates the turning movement of each wheel and the rotation movement of each wheel by a single operation,
Operation wires that transmit the operation of the operation mechanism to the wheels;
A desk characterized by comprising.   The operation mechanism is provided on the back surface of the deck and includes an operation lever for performing the single operation, and each operation wire is connected to the operation lever on the back surface of the deck, and each wheel The desk according to claim 1, wherein the lengths of the operation wire members from the operation lever to the operation lever are the same.   The desk according to claim 1, wherein the leg portion is formed of a hollow member, and each of the operation wire rods is provided through the leg portion.   The deck has a quadrangular shape, and the leg portion has a plurality of first leg members and a plurality of second leg members, and the plurality of first leg members are outside an area of a back surface of the deck. The plurality of second leg members are arranged at positions in a region on the back surface of the deck, and the plurality of desks can be stacked. The desk described in.

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