JP2008119047A - Folding table - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a folding table with a plurality of folding operation parts, allowing a user to smartly rotate a top board and to fold the table even if an obstacle is present near an unoperated operation part. <P>SOLUTION: The folding table 1 comprises the top board 4 rotatable from the horizontal state to the erected state; at least one locking pawl 28 to be detachably locked with a locking part of the top board 4 in the horizontal state for fixing the top board 4 by the locking; and left and right levers 34 disposed left and right for moving all projecting parts 32 integrated with the locking pawl 28 in the direction of separation. The left (or right) lever 34 and its outer frame are shaped in such a way as not to intervene in the range of interlocking of the left (or right) projecting part 32 related to the left (or right) lever 34 if the projecting part interlocks as the right (or left) lever 34 moves the right projecting part 32. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a folding table used in an office meeting room or the like.

  As a conventional folding table, one disclosed in Patent Document 1 below is known. The folding table includes slide members having locking pins on the lower left and right sides of the top plate that is rotatably attached to the legs, and the locking pins can be locked on upper portions of the left and right legs. Latch plate members are provided. In this folding table, when the top plate is in a horizontal state and a standing state, the locking pin is locked to the latch plate member and the top plate is fixed. On the other hand, when rotating the top plate, pull one slide member toward you to release each locking pin from the corresponding latch plate member, and release the locking by each locking pin. move. At this time, since both the locking pins or the latch plate members are operated, the other slide member is also pulled forward in conjunction with the operated slide member.

Japanese Patent No. 2868755

  In such a folding table, when the top plate is rotated, the slide member that is not operated is entangled and pulled out. Therefore, an extra operation occurs, and it is not smart. For example, when a slide member that is not operated is not pulled out well, the folding operation may not be performed smoothly.

  Therefore, the invention described in claim 1 is in a folding table having a plurality of folding operation units, and the top plate can be smartly rotated, and it can be folded even if there is an obstacle near the non-operated operation unit. An object of the present invention is to provide a folding table capable of performing an operation.

  In order to achieve the above object, the invention described in claim 1 is capable of being engaged with and disengaged from a top plate that can be rotated from a horizontal state to a standing state, and a locking portion of the top plate in the horizontal state. One or more locking members that fix the top plate by stopping, and left and right levers for moving all the locking members or interlocking members that interlock with the locking members that are arranged on the left and right in a direction to release them. The peripheral member is characterized in that the other lever moves the lock member or the interlocking member so that it does not interfere with the interlocking range when the lock member or interlocking member related to itself is interlocked. .

  In addition to the above-mentioned object, the invention according to claim 2 has a structure in which a lever that is not operated is not pulled out and prevented from being pulled out while preventing a situation in which a user accidentally pushes the lever when the table is used and the folding operation becomes possible. In order to achieve the object of the simple configuration, in the above invention, the lever can be pulled forward, and when it is pulled, the lock member or the interlocking member is pushed forward, which is a direction in which the lever is released. It is what.

  In addition to the above object, the invention described in claim 3 is to achieve the object of further simplifying the structure in which the lever that is not operated is pulled and pulled out. In the above invention, the lever is an outer member as a peripheral member. It is accommodated in the frame, and a hole is formed in the outer frame to avoid the movement range of the lock member or the interlocking member.

  In addition to the above object, the invention according to claim 4 further has a structure in which only the lock member or the interlocking member related to the operated lever is pushed, and the lock member or the interlocking member related to the other lever does not cooperate with the lever. In order to achieve the object of the simple configuration, in the above invention, the lever has a hole that avoids the movement range of the lock member or the interlocking member, and the lock member or the interlocking member is formed by the peripheral portion of the hole. It is characterized by pressing.

  According to a fifth aspect of the present invention, in addition to the above object, the lock member or the interlocking member related to the other lever does not engage the lever even when the lock member or the interlocking member related to the operated lever is pressed. In order to achieve the object of further simple configuration, in the above invention, the lever is provided with a protrusion for pushing a portion opposite to the moving direction of the lock member or the interlocking member. is there.

  According to the present invention, the top plate can be rotated by operating one of the left and right levers, and the other lever that is not operated at this time does not move. This can be done easily without doing so.

  Hereinafter, embodiments of the present invention will be described. However, embodiments of the present invention are not limited to the following embodiments.

[First Embodiment]
FIG. 1 is a perspective view of the right half part when the folding table 1 according to the first embodiment is used, and FIG. 2 is a cross-sectional view including the left top receiving part 2 when the folding table 1 is used. Since the folding table 1 is substantially bilaterally symmetric, description will be made centering on the right half or the left half.

  The folding table 1 is provided on a top plate 4 including a pair of top and bottom receiving parts 2 that are long in the front and rear, a pair of leg parts 6 that pivotally support the corresponding top receiving part 2, and the lower front and back sides of each leg part 6. A caster 8 and a curtain plate 10 that can be moved up and down after each leg 6 are provided.

  The leg part 6 is L-shaped, and casters 8 are provided on the front and rear end edges of the lower part in the front-rear direction. Each caster 8 is installed so as to be rotatable about a vertical axis, and can change direction. The curtain plate 10 is fixed to the rear side (front side) of each leg 6. Further, a through hole 14 is provided between the leg portions 6 and on the front side (back side) of the curtain plate 10.

  3 has a box-shaped outer frame 18 and includes a plate 20 with a shaft on the rear surface of the lower surface of the outer frame 18. The front portion of the plate 20 with a shaft passes through the top. 14 is attached to the bearing plate 22 integral with the end edge. In addition, the shaft-equipped plate 20 includes a protrusion 24 as an engaging portion directed inward. Between each leg 6, a common left and right interlocking rod 26 is provided so as to be rotatable around its own axis, and a lock claw 28 as a lock member is provided near each end of the interlocking rod 26 with the interlocking rod 26. Provided integrally. When the table is used, the lock claw 28 is hooked on the projection 24 to hold the top plate 4 in a horizontal state. At the start of folding, the lock claw 28 is separated from the projection 24 by the rotation of the interlocking rod 26. Allow the plate 4 to rotate to an upright position. The interlocking rod 26 is urged by a spring 30 in a direction in which the lock claw 28 is hooked on the protrusion 24.

  The upper portion of the lock claw 28 is a protruding portion 32, and the protruding portion 32 is received by the top receiving portion 2 when the table is used. Inside the outer frame 18 of the top receiving portion 2, a lever 34 exposed at the front edge is provided so as to be movable back and forth, and the protruding portion 32 is formed in a long moving long hole 35 opened at the rear of the lever 34. Acceptable. At the position corresponding to the moving elongated hole 35 on the lower surface of the outer frame 18, a long elongated hole 36 is opened in the front and rear, and the protruding portion 32 is also received by the elongated hole 36.

  The outer frame 18 is provided with a long restriction long hole 37 at the front and rear, and the lever 34 is provided with a fixing hole 39 for fixing the pin 38. The pin 38 is provided with the restriction long hole 37 and the fixing hole 39. The movement range of the lever 34 in the front-rear direction is restricted. A spring 40 is interposed between the pin 38 of the lever 34 and the outer frame 18. The spring 40 is locked to the pin 38.

  When the table is used, the lever 34 is in a position (accommodating position) to be received in the moving long hole 35 without pulling the protrusion 32. On the other hand, at the start of folding, as shown in FIG. 4, when the exposed portion of one lever 34 is pulled forward against the spring 44 and the lever 34 is in the pulled-out position, the rear end of the moving long hole 35 of the lever 34 Comes into contact with the rear side of the projecting portion 32 and pulls the head of the projecting portion 32 to rotate both the left and right lock claws 28 away from the projecting portion 26 via the connecting rod 26.

  Here, the long hole 36 of the outer frame 18 has a length longer than the moving range of the projecting portion 32 that rotates and does not block the rotation of the projecting portion 32. Further, as shown in FIG. 5, even if the other protrusion 32 rotates through the interlocking rod 26, the moving long hole 35 of the lever 34 is longer than the moving range of the protrusion 32, like the long hole 36. Therefore, the protrusion 32 moves in the moving long hole 35 and the long hole 36, and thus does not hinder the operation of the interlocking rod 26 or both lock claws 28, and the other lever 34 is moved by one lever 34. It will not be pulled forward.

  When the pulled lever 34 is released, the lever 34 returns to the accommodation position by the biasing force of the spring 40. When the lever 34 is in the storage position, the pin 38 is positioned at the rear end of the restriction slot 37, and the lever 34 is pulled out to completely separate the lock claw 28 from the protrusion 26 via the protrusion 32 and the interlocking rod 26. When in position, the pin 38 is located at the front end of the restriction slot 37.

  If the front side of the top plate 4 is slightly lowered while pulling one or both of the levers 34, the lock claw 28 does not engage the protrusion 24 as shown in FIG. it can.

  In the folding table 1 according to the first embodiment, the top plate 4 that can be rotated from a horizontal state to a standing state and the protrusion 24 of the top plate 4 in the horizontal state can be engaged and disengaged. One or more lock claws 28 for fixing the right and left and left and right levers 34 for moving all the protrusions 32 that are integral with the lock claws 28 in the direction of detachment. ) Lever 34 or its outer frame 18 when the right (left) lever 34 moves the right protrusion 32 and the left (right) protrusion 32 associated with the left (right) lever 34 is interlocked. Therefore, even if there are levers 34 on the left and right, the top plate 4 can be unlocked for folding by pulling out one of the levers 34. Moreover, at that time, the other lever 34 Even if there is a chair elbow or the like in front of the other lever 34, the operation of one lever 34 will not be hindered, and the appearance of the folding operation will be improved by eliminating the extra operation during folding. It can be good.

  Moreover, in the folding table 1, the lever 34 can be pulled out forward, and by being pulled out, the projection 32 is pushed forward in the direction in which all the lock claws 28 are detached, so that the user can use the table when using the table. However, it is possible to more simply construct a structure in which the lever 34 that is not operated is pulled out and pulled out while preventing the situation in which the lever 34 is accidentally pushed and the folding operation becomes possible.

  Further, the lever 34 is accommodated in the outer frame 18, and a long hole 36 that avoids the movement range of the protruding portion 32 is opened in the outer frame 18, so that the lever 34 that is not operated can be pulled out in an interlocking manner. The structure which is not present can be configured more simply.

  In addition, the lever 34 is provided with a moving long hole 35 that avoids the movement range of the protruding portion 32, and the protruding portion 32 is pushed by the peripheral rear portion of the moving long hole 35. A structure in which only the portion 32 is pushed and the protruding portion 32 related to the other lever 34 idles can be configured more simply.

[Second Embodiment]
This embodiment is different from the first embodiment only in the configuration of the lever and the presence or absence of the protruding portion. In this embodiment, the same code | symbol is attached | subjected to the member similar to 1st Embodiment. FIG. 7 is an exploded perspective view around the lever 54 in the folding table 51 of the second embodiment, and FIG. 8 is a cross-sectional view including the left top receiving portion 2 when the folding table 51 is used.

  In the folding table 51, no protrusion is provided, and only the left and right lock claws 28 are fixed to the interlocking rod 26.

  On the other hand, a protrusion 56 protruding downward is provided at a position corresponding to the long hole 36 of the outer frame 18 in the rear portion of the lever 54. The protrusion 56 has a rearwardly inclined surface 58, and as shown in FIG. 9, when the lever 54 is in the storage position, it does not contact the lock claw 28.

  On the other hand, as shown in FIGS. 9 to 10, when the lever 54 is pulled out, the protrusion 56 that moves forward together with the lever 54 pushes the lock claw 28 forward by the inclined surface 58. Then, the lock claw 28 pushed forward rotates around the interlocking rod 26, and the interlocking rod 26 rotates and moves the other lock claw 28, but the other lock claw 28 rotating forward is the rear protrusion. 56 does not interfere, and the corresponding lever 54 does not operate with the movement of the other lock claw 28.

  Then, when the lever 54 is pulled out and the front side of the top plate 4 is slightly lowered in a state where both the locking claws 28 are separated from the projection 24, the lever 54 is not operated thereafter as shown in FIG. In both cases, the folding operation can be continued.

  In the folding table 51 of the second embodiment, the top plate 4 that can be rotated from a horizontal state to a standing state and the protrusion 24 of the top plate 4 in the horizontal state can be engaged and disengaged, and the top plate 4 can be engaged by the locking. One or more lock claws 28 for fixing the left and right levers 54 for moving all the lock claws 28 arranged on the left and right and connected by the interlocking rods 26 in the direction to release them. The lever 54 or its outer frame 18 is linked when the right (left) lever 54 moves the right lock claw 28 and the left (right) lock claw 28 related to the left (right) lever 54 is linked. Since the shape does not interfere with the range, even if there are levers 54 on the left and right, the top plate 4 can be unlocked for folding by pulling out one of the levers 54, and that When the other lever 54 Conjunction with not Shimawa jump out, to not interfere with the operation of one lever 54, the appearance of to folding operation eliminates extra operations during the folding can be made good. In addition, since the lever 54 moves the lock claw 28 directly, a protrusion part becomes unnecessary and the structure can be further simplified by suppressing the number of parts.

  Further, since the lever 54 is provided with a projection 56 for pushing the rear portion of the lock claw 28 which is opposite to the moving direction of the lock claw 28, only the lock claw 28 related to the operated lever 54 is pushed, and the other lever The lock pawl 28 according to 54 can make the structure of idling more simply.

[Example of change]
In addition, other embodiment of this invention which mainly changes the said embodiment and illustrates is illustrated. In the first embodiment, a lock claw is provided only at the center of the interlocking rod, a locking portion for the lock claw is provided on the top plate, and a protrusion (interlocking member) separate from the lock claw is provided on the left and right, By connecting the claw and each projecting portion with an interlocking rod, the lock pawl is detached from the engaging portion via the interlocking rod based on the movement of the projecting portion by pulling out one of the left and right levers. In the second embodiment, a protrusion similar to that of the first embodiment is provided on the interlocking rod, and the protrusion at the rear part of the lever is moved along this protrusion. In any of the embodiments, a protrusion (interlocking member) separate from the left and right lock claws is provided integrally with the interlock rod (adjacent to the lock claws).

It is right half explanatory drawing at the time of use of the folding table which concerns on 1st Embodiment of this invention. It is sectional drawing containing the left top receiving part at the time of use of the folding table which concerns on 1st Embodiment. It is a disassembled perspective view of the left top receiving part of the folding table of FIG. 2, and its periphery. FIG. 3 is a cross-sectional view including a left top receiving portion at the start of folding of the folding table of FIG. 2. It is sectional drawing containing the right top receiving part at the time of the folding start of the folding table which concerns on 1st Embodiment. It is explanatory drawing of the folding operation | movement in the folding table of FIG. It is a disassembled perspective view of the lever and its peripheral member in the folding table which concerns on 2nd Embodiment of this invention. It is sectional drawing containing the left top receiving part at the time of use of the folding table which concerns on 2nd Embodiment. It is sectional drawing containing the left top receiving part at the time of the folding start of the folding table which concerns on 2nd Embodiment. It is sectional drawing containing the right top receiving part at the time of the folding start of the folding table which concerns on 2nd Embodiment. It is explanatory drawing of the folding operation | movement in the folding table of FIG.

Explanation of symbols

1,51 Folding table 4 Top plate 18 Outer frame (peripheral members)
26 Interlocking rod 28 Lock claw (lock member)
32 Projection 34, 54 Lever

Claims (5)

A top plate that can rotate from a horizontal state to a standing state;
One or more locking members that are detachable with respect to the locking portion of the top plate in the horizontal state, and fix the top plate by the locking;
Left and right levers for moving the lock member or the interlocking member that interlocks this, which are arranged on the left and right, in the direction to release all,
Folding characterized in that the lever or its peripheral member has a shape that does not interfere with the interlocking range when the other lever moves the locking member or the interlocking member and the locking member or interlocking member associated with itself is interlocked table. The folding table according to claim 1, wherein the lever can be pulled forward, and when the lever is pulled, the lock member or the interlocking member is pushed forward in a direction in which the lever is detached. The lever is housed in the outer frame as a peripheral member,
The folding table according to claim 1 or 2, wherein a hole that avoids a movement range of the lock member or the interlocking member is formed in the outer frame. 4. The lever according to claim 1, wherein the lever is formed with a hole that avoids a movement range of the lock member or the interlocking member, and the lock member or the interlocking member is pushed by a peripheral portion of the hole. Folding table as described in The folding table according to any one of claims 1 to 3, wherein the lever includes a protrusion for pushing a portion on the opposite side to the moving direction of the lock member or the interlocking member.

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