JP2015092905A - Stack table and lever - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique related to a stack table to be more easily made into a use state or a folding state compared with a conventional manner.SOLUTION: A stack table to be changeable into a use state and a folding state includes: a top board to be horizontal in the use state and to be erected in the folding state; legs arranged on both sides of the rear sides of the top board so as to support the top board; lock mechanisms that are fixed to the rear side of the top board, are turnably connected to the upper parts of the legs to allow the top board to be horizontal or erected, and keep the top board horizontal or erected; and levers that are connected to the lock mechanisms so as to change the stack table into the use state or the folding state. Each lever whose proximal end of the body part is turnably connected to the lock mechanism includes a flat part at the distal end of the body part, that indicates a lever operation method by displaying and points upward when the stack table is in the folding state.

Description

  The present invention relates to a stack table and lever technology.

  There is a stack table in which the top plate can be changed between a horizontal state and a vertical state, and a plurality of tables can be arranged in a horizontal direction by placing the top plate in a vertical state. For example, Patent Document 1 discloses a parallel stack table in which the top plate can be vertically stacked and stored in parallel.

Registered Utility Model No. 3056788

  The table, called a stack table, can be changed between a use state (for example, the top plate is in a horizontal state or a state close thereto) and a folded state (for example, the top plate is in a vertical state or a state close thereto), There is a table in which a plurality of stack tables can be arranged in the horizontal direction by being folded. The stack table includes a so-called parallel stack table and a side stack table. The so-called parallel stack table can be arranged by stacking a plurality of stack tables in a straight line in the depth direction when the top plate is folded and the stack tables are stacked. The so-called side stack table is arranged by stacking adjacent stack tables in the depth direction of the stack table while shifting the stack tables in the table width direction by at least the width of the legs when the stack is stacked with the top plate folded. be able to.

  The stack table can be freely changed between the use state and the folded state as described above, but this change must be made by the user. The stack table is provided with an operation unit such as a lever for releasing the use state or the folded state, and the user operates the operation unit to set the stack table to the use state or the folded state. . Here, since the operation unit is often provided on the back side of the top plate, there is a concern that it is difficult for the user to find the operation unit in the conventional stack table. Further, even though the conventional stack table can find the operation unit, there is a concern that the operation method is difficult to understand, such as in which direction it is pulled or pushed. In addition, it has been desired to develop a stack table that can be used or folded by a simpler operation.

  In view of the above problems, an object of the present invention is to provide a technique related to a stack table that can be used or folded more easily than in the past.

  In order to solve the above-described problem, the present invention is a flat portion in which a display indicating a lever operating method is disposed at the tip of a main body portion of a lever (operating portion), and the stack table is positioned upward in a folded state. The flat part to point was decided to be provided.

Specifically, the present invention is a stack table that can be changed between a use state and a folded state, and is a horizontal state in the use state and a standing state in the folded state, and a back side of the top plate. Provided on both sides, a leg that supports the top plate, fixed to the back side of the top plate, and pivotally connected to the upper part of the leg so that the top plate is in a horizontal state or a standing state. A locking mechanism that maintains the top plate in a horizontal state or a standing state, and a lever that is connected to the locking mechanism and changes the stack table to the use state or the folded state. A flat portion that is pivotally connected to the lock mechanism and has a display indicating an operation method of the lever at the distal end of the main body, and the stack table is in a folded state. Flat part A.

  The stack table according to the present invention is provided with a flat portion at the tip of a lever that changes the stack table to a use state or a folded state. The flat portion is provided with an indication indicating the lever operation method, and points upward when the stack table is in the folded state. Therefore, especially when the stack table is in the folded state, the flat portion of the lever is easily noticeable by the user, and the user can immediately confirm the presence of the lever and also understand the operation method of the lever. “Upward” means that the surface of the flat portion is in a horizontal state or a state close thereto, and the surface of the flat portion faces upward. Further, the flat portion of the lever can prevent the gripped hand from being detached from the main body when the user grips the main body of the lever. As described above, according to the stack table of the present invention, it is possible to make it in a use state or a folded state more easily than in the past.

  In the use state, the top plate is in a horizontal state. The horizontal state does not require the top plate to be strictly horizontal. For example, the horizontal state may be a state in which a writing instrument or the like can be placed on the top plate, and includes a tilted state. In the folded state, the top plate stands up. In the standing state, the top plate does not need to be strictly vertical, and the top plate stands up compared to the horizontal state, so that the depth of the top plate is shortened, and the stack tables are stacked in the horizontal direction. Including possible states. Although the depth of the top plate is the shortest when the top plate is vertical, the top plate may be inclined. The stack table can be a so-called parallel stack table in which a plurality of stack tables can be accommodated in a straight line in the depth direction when the plurality of stack tables are stacked and arranged with the top plate in a folded state. In addition, when stacking a plurality of stack tables with the top plate in a folded state, the stack tables are stacked in the stack table depth direction while shifting adjacent stack tables by at least the width of the legs in the stack table width direction. A so-called side stack table can be arranged.

  For example, the lever can be configured to release the lock state of the lock mechanism by rotating the base end around the shaft and bringing the distal end side provided with the flat portion closer to the top plate side. The display indicating the operation method of the lever of the flat portion can be configured by, for example, an arrow, a picture, a character, a symbol, or the like indicating that the tip end side of the lever is close to the top plate side. Moreover, the user can understand the position of a lever and the operation method of a lever more easily by making a lever into a color different from the back surface of a top plate.

  Here, as an example, the lever may have a plate shape, and the flat portion may be formed by bending the tip of the main body. The plate shape increases the surface area of the lever compared to, for example, a rod shape, makes the lever more noticeable, and the user can more easily understand the position of the lever and how to operate the lever. it can. Further, since the surface area of the lever is increased, it becomes easier to grip and the operability is improved.

Further, as an example, the lever is connected to the lock mechanism on the back side of the top plate so as to face the back surface of the top plate, and at least the side of the main body portion opposite to the surface facing the top plate. It is good also as a structure by which the several recessed part or convex part was provided in this surface. The lever may be provided on both sides of the top plate or may be provided on one side. The concave portion or the convex portion functions as an anti-slip, makes it easier for the lever to grip, and improves operability. The concave portion or the convex portion can be a circle, a polygon, a line shape, or the like. The lever may bend the main body. For example,
By bending the main body portion so as to swell in a direction away from the top plate, the gap between the lever and the top plate can be increased compared to the case where the lever is a flat surface. As a result, for example, it is difficult to place a hand between the lever and the top plate.

  In addition, the stack table according to the present invention may further include a curtain plate provided on the back side of the top plate. Moreover, the structure which equips the lower part of a leg with a caster may be sufficient as the stack table which concerns on this invention. Moreover, the structure which equips the lower part of a leg with the adjuster which adjusts the height of a stack table may be sufficient as the stack table which concerns on this invention. Further, the stack table according to the present invention may be configured to include both a caster and an adjuster.

  Here, the present invention can also be specified as a lever of the stack table described above. For example, the present invention is a stack table lever that can be changed between a use state and a folded state, wherein the stack table is in a horizontal state in the use state and is in a standing state in the folded state; Provided on both sides of the top side of the top plate, and a leg that supports the top plate, and is fixed to the back side of the top plate, and is rotatable with the upper part of the leg so that the top plate is horizontal or standing. And a lock mechanism that maintains the top plate in a horizontal state or a standing state, and a lever that is connected to the lock mechanism and changes the stack table to the use state or the folded state. The lever is a flat portion in which a base end of a main body is rotatably connected to the lock mechanism, and a display indicating an operation method of the lever is attached to a front end of the main body, and the stack table is folded. A lever with a flattened portion that points upwards in the state.

  ADVANTAGE OF THE INVENTION According to this invention, the technique regarding the stack table which can be made into a use state or a folding state more easily than before can be provided.

FIG. 1: shows the perspective view which looked at the side stack table of the use condition which concerns on embodiment from the back side. FIG. 2 is a perspective view of the side stack table in use according to the embodiment as seen from the front side. FIG. 3: shows the perspective view which looked at the side stack table of the folding state which concerns on embodiment from the back side. FIG. 4 is a perspective view of the side stack table in the folded state according to the embodiment as viewed from the front side. FIG. 5 shows a side view of the side stack table in use according to the embodiment. FIG. 6 shows a side view of the folded side stack table according to the embodiment. FIG. 7: shows the perspective view of the state which accumulated the side stack table of the folding state which concerns on embodiment. FIG. 8: shows the side view of the state which accumulated the side stack table of the folding state which concerns on embodiment. FIG. 9 is a perspective view of the lever of the side stack table according to the embodiment as viewed from above. FIG. 10: shows the perspective view which looked at the lever of the side stack table which concerns on embodiment from the downward side. FIG. 11: shows the front view of the flat part of the lever of the side stack table which concerns on embodiment. FIG. 12 is a diagram illustrating an operation for changing the side stack table according to the embodiment from the use state to the folded state. FIG. 13: shows the perspective view which looked at the lift-up caster of the cancellation | release state which concerns on embodiment from the near side. FIG. 14: shows the perspective view which looked at the lift-up caster of the cancellation | release state which concerns on embodiment from the back side. FIG. 15: shows the perspective view which looked at the lift-up caster of the fixed state which concerns on embodiment from the near side. FIG. 16: shows the perspective view which looked at the lift-up caster of the fixed state which concerns on embodiment from the back side. FIG. 17: shows the longitudinal cross-sectional view which cut | disconnected the lift up caster of the cancellation | release state which concerns on embodiment in the width direction. FIG. 18: shows the longitudinal cross-sectional view which cut | disconnected the caster of the cancellation | release state which concerns on embodiment in the depth direction. FIG. 19 is a diagram illustrating an operation of changing the caster according to the embodiment from the released state to the fixed state. FIG. 20 is a perspective view of the lift-up caster in a fixed state according to Modification 1 as viewed from the front side. FIG. 21 is a perspective view of a lift-up caster in a fixed state according to Modification 2 as viewed from the near side. FIG. 22 is a perspective view of a lift-up caster in a fixed state according to Modification 3 as viewed from the near side. FIG. 23 is a perspective view of a lift-up caster in a fixed state according to Modification 4 as viewed from the front side. FIG. 24 is a perspective view of a lift-up caster in a fixed state according to Modification 5 as viewed from the front side. FIG. 25 is a perspective view of a lift-up caster in a fixed state according to Modification 6 as viewed from the front side.

  Next, embodiments of the present invention will be described with reference to the drawings. In addition, embodiment described below is the illustration for implementing this invention, and this invention is not limited to the aspect demonstrated below.

<Embodiment>
<Overview>
The side stack table 1 according to the embodiment can be changed between a use state as shown in FIGS. 1, 2, and 5 and a folded state as shown in FIGS. 3, 4, and 6. Further, as shown in FIGS. 7 and 8, the side stack table 1 according to the embodiment can be stacked in the horizontal direction in the folded state. By operating the lever 5 provided on the side surface of the side stack table 1 and the back side of the top plate 2, it is possible to change from the use state to the folded state, or from the folded state to the use state. Further, the side stack table 1 according to the embodiment includes a lift-up caster 7a, and by operating the lift-up lever 71, it is possible to change from the fixed state to the released state, or from the released state to the fixed state. . Hereinafter, unless otherwise specified, the curtain 6 side of the side stack table 1 is defined as the “back side”, the opposite side is defined as the “front side”, and from the back side to the front side. The direction orthogonal to the direction of is defined as “side”. Further, the top plate 2 side of the side stack table 1 is defined as “upward”, and the leg 3 side is defined as “downward”.

<Configuration>
The side stack table 1 according to the embodiment includes a top plate 2, legs 3, a lock mechanism 4, a lever 5, a curtain plate 6, and casters 7.

  The top plate 2 has a rectangular shape and is supported by legs 3 provided on both sides in the width direction (longitudinal direction). Specifically, the top plate 2 is connected to and supported by the legs 3 through a lock mechanism 4 fixed to the back surface of the top plate 2. The top plate 2 is in a horizontal state in the use state as shown in FIGS. 1, 2, and 5. The horizontal state does not require the top plate 2 to be strictly horizontal, and may be a state in which a writing instrument or the like can be placed on the top plate 2, for example. Therefore, for example, the top plate 2 may be inclined such that the front side (opposite side of the curtain plate 6) is lower than the back side. Moreover, the top plate 2 is in an upright state in the folded state as shown in FIGS. 3, 4, and 6. In the standing state, the top plate 2 does not have to be strictly vertical, and the depth of the top plate is shortened by raising the top plate 2 in comparison with the horizontal state, and the side stack table 1 is moved in the horizontal direction. Including the state that can be stacked. Although the depth of a top plate becomes the shortest when the top plate 2 becomes perpendicular | vertical, the top plate 2 may incline like this embodiment.

  The legs 3 support the top plate 2. The leg 3 is composed of two support columns 31 provided on both sides of the top plate 2 and a horizontal member 32 connected to the lower end of each support column 31 and extending in the depth direction. Casters 7 are connected to both ends of the horizontal member 32. A hinge 33 is provided in the vicinity of the upper end of the column 31, and the lock mechanism 4 to which the top 2 is fixed is rotatably connected via the hinge 33. The leg 3 according to the embodiment has a rectangular cross section for both the column 31 and the horizontal member 32, but may have other shapes such as a circle. Moreover, the leg 3 which concerns on embodiment is only an example, and can use well-known leg | foots suitably, such as a thing in which a support | pillar inclines, and a support | pillar branch and an inverted Y shape.

  The lock mechanism 4 is fixed to the back side of the top plate 2 and is rotatably connected to a hinge 33 provided in the vicinity of the upper end of the column 31 of the leg 3 so that the top plate 2 can be used or folded. In addition, the top plate 2 is maintained in a use state or a fixed state. As shown in FIG. 12, the lock mechanism 4 is covered with a cover 41, and a lock hook 43 having a groove 42, a first lock pin 44, a second lock pin 45, a coil spring 46, and a connection are formed therein. A member 47 and a shaft rod 48 are provided. The locking hook 43 is rotatable about the shaft bar 48 in conjunction with the operation of the lever 5. The locking hook 43 maintains the use state by engaging the groove 42 with the first locking pin 44. The locking hook 43 maintains the folded state by engaging the groove 42 with the second locking pin 45. The locking hook 43 is urged in the direction of the first locking pin 44 and the second locking pin 45 by a coil spring 46, and is configured so that the use state or the folded state can be maintained. The shaft bar 48 extends in the width direction of the side stack table, and the locking hooks 43 on both sides rotate in conjunction with each other.

As shown in FIGS. 5, 6, 9 to 11, etc., the lever 5 changes the side stack table 1 to a use state or a folded state. The lever 5 is a flat portion 55 in which a base end 52 of the main body 51 is rotatably connected to the lock mechanism 4, and a display 54 indicating an operation method of the lever 5 is attached to a distal end 53 of the main body 51. The side stack table 1 has a flat portion 55 that points upward in the folded state. “Upward” means that the surface of the flat portion 55 is in a horizontal state or a state close thereto, and the surface of the flat portion 55 faces upward. The lever 5 according to the embodiment has a plate shape, is curved so that the main body 51 swells away from the top plate 2, and a flat portion 55 is formed by bending the tip 53 of the main body 51. Yes. The flat portion 55 is printed with a pictogram that combines a triangle and a quadrangle as a display 54 and makes an image of an arrow as a whole. The apex of the triangle, in other words, the arrow points to the back surface of the top plate 2, and the operation method of the lever 5 is configured so that it can be immediately understood that the operation direction of the lever 5 is the direction toward the back surface side of the top plate 2. Has been. Further, the flat portion 55 has a surface pointing slightly above the horizontal direction in the use state, and a surface pointing upward in the folded state. “Upward” means that the surface of the flat portion 55 is in a horizontal state or a state close to this as described above, and “slightly upward” means that the surface of the flat portion 55 is slightly inclined relative to the vertical state. This means that the surface of the flat portion 55 is slightly above the horizontal direction. In addition, the lever 5 is configured in an orange color while the cover 41 of the lock mechanism 4 is gray, so that it can be easily distinguished from other members. The lever 5 is connected to the lock mechanism 4 on both sides of the back side of the top plate 2 so as to face the back surface of the top plate 2, and the surface of the main body 51 opposite to the surface facing the top plate 2. Are provided with a plurality of circular convex portions 56.

  As shown in FIGS. 1 to 6 and the like, the curtain plate 6 is rectangular and covers the back side of the side stack table 1. The curtain plate 6 according to the embodiment is configured to cover approximately the upper half of the floor to the top plate 2. Further, the curtain plate 6 is coupled to a curtain upper hinge 61 formed on the back side of the cover 41 of the lock mechanism 4 on both sides of the upper end. Further, the curtain plate 6 is rotatably connected to a curtain plate support rod 62 connected to the support column 31 at both sides at the lower end. One end of the curtain plate support rod 62 is pivotally connected to the column 31, and the other end is pivotally connected to the lower end of the curtain plate 6. Therefore, the curtain plate 6 is movable in conjunction with the top plate 2 and is substantially orthogonal to the top plate 2 in the use state, but in a folded state, the curtain plate 6 is adjacent to the top plate 2 and is parallel to the top plate 2. It becomes. Further, the curtain plate 6 according to the embodiment has a plurality of circular protrusions 63 that protrude to the depth side in accordance with the planar shape of the spherical recess 72 formed in the lift-up lever 71.

  The caster 7 according to the embodiment is connected to the front end of the horizontal member 32, and is connected to the lift-up caster 7a having a stopper function having a fixed state and a released state, and the rear end of the horizontal member 32. Two types of casters, ordinary casters 7b that do not have a stopper function, are used. Since the latter is a general-purpose caster, explanation is omitted. As shown in FIGS. 13 and 14, the lift-up caster 7a is in a release state in which the wheel can freely rotate, and fixed in which the caster is locked (rotation of the wheel is restricted) as shown in FIGS. State.

  As shown in FIGS. 13 to 19 and the like, the lift-up caster 7a includes a mounting bolt 72, an adjuster 73, wheels 74, a lift-up lever 71, and a stop pad 75. The mounting bolt 72 is connected to a bolt hole (not shown) provided on the lower surface of the horizontal member 32 of the leg 3. The adjuster 73 is fixed to the mounting bolt 72 and moved in the vertical direction, so that the height position of the top plate 2 can be finally adjusted. The adjuster 73 according to the embodiment has a disk shape, a through hole that is screwed to the mounting bolt 72 is provided at the center, and a plurality of vertical grooves that function as a slip stopper are formed on the peripheral surface. When the adjuster 73 is rotated clockwise, the adjuster 73 moves upward, and the top plate 2 can be made higher than before the movement. Further, when the adjuster 73 is rotated counterclockwise, the adjuster 73 moves downward, and the top plate 2 can be lowered as compared with before the movement.

  Two wheels 74 are provided on both sides of the lift-up lever 71 and the stop pad 75 and are rotatable about a rotation shaft 76.

The lift-up lever 71 is rotatable about the rotation shaft 76 independently of the wheels 74. The lift-up lever 71 has a non-exposed portion connected to the stop pad 75 via a link mechanism (not shown) inside the lift-up caster 7a. Therefore, the stop pad 75 can be moved up and down as the lift-up lever 71 rotates. The lift-up lever 71 (exposed portion) has a plate shape, and a spherical recess 77 is formed on the surface. The spherical depression 77 is intended to be operated with fingers, and the lift-up lever 71 can be easily pushed down when the fingertip of the hand is contained in the depression 77. Further, a protrusion 78 protruding downward is formed at the tip of the back surface of the lift-up lever 71. This projection 78 is also intended to be operated with fingers, and the lift-up lever can be easily pushed up by catching the projection 78 with the fingertip. The lift-up lever 71 points obliquely upward in the released state. The lift-up lever 71 points obliquely downward in a fixed state, but a space sufficient for inserting a finger is formed between the lift-up lever 71 and the floor surface. Therefore, the lift-up lever 71 can be easily pushed up. Further, the lift-up lever 71 is configured in orange with respect to the black lift-up caster 7a, so that it can be easily identified from the surroundings.

  The stop pad 75 can be raised and lowered as the lift-up lever 71 rotates. The stop pad 75 has the pad surface 79 positioned above the lowermost portion of the wheel 74 in the release state where the lift-up lever 71 is obliquely upward. On the other hand, the stop pad 75 is in a fixed state where the lift-up lever 71 points obliquely downward, and the pad surface 79 is positioned below the lowermost part of the wheel 74 and is in contact with the floor surface. That is, in the fixed state, the pad surface 79 of the stop pad 75 is in contact with the floor surface, and the wheel 74 is in a floating state in the air.

  In addition, an arrow display 80 indicating an operation method is attached to a region exposed when the lift-up lever 71 is fixed in the peripheral surface of the lift-up caster 7a. In addition, among the lift-up casters 7a described above, the configuration of the existing lift-up casters 7a can be adopted except for the lift-up lever 71 (exposed portion) and the arrow display. Therefore, the details of the internal structure of the lift-up caster 7a including the link mechanism that connects the lift-up lever 71 and the stop pad 75 are omitted.

<Operation>
Next, operation | movement of the side stack table 1 which concerns on embodiment is demonstrated with a usage method. The side stack table 1 according to the embodiment is used with the top plate 2 in a horizontal state as shown in FIGS. 1 and 2 when used as a table. On the other hand, when the side stack table 1 is accommodated, as shown in FIGS. 3 and 4, the side stack table 1 according to the embodiment can be in a folded state in which the top plate 2 stands. Since the top plate 2 stands up in the folded state, the side stack tables 1 can be arranged with the side stack tables 1 close to each other so that the top plates 2 overlap as shown in FIGS. . Unlike the so-called parallel stack table, the side stack table 1 cannot be arranged in a straight line in the depth direction, and the adjacent side stack table 1 is at least as wide as the horizontal member 32 of the leg 3. It can be arranged in the depth direction while shifting in the width direction.

  The change from the use state to the folded state and the change from the folded state to the use state are performed by operating the levers 5 provided on both sides of the side stack table 1. Hereinafter, based on FIG. 12, the change from the use state to the folded state will be described as an example. As shown in the upper left diagram of FIG. 12, the groove 42 of the locking hook 43 is engaged with the first locking pin 44 in the use state. The locking hook 43 is urged in the direction of the first locking pin 44 by the coil spring 46, and the use state is maintained. Here, when the lever 5 is operated so that the tip 53 of the lever 5 approaches the back side of the top plate 2, the locking hook 43 starts to rotate via the connecting member 47, and the groove 42 of the locking hook 43 The engagement of the first locking pin 44 is gradually released. When the engagement between the groove 42 of the locking hook 43 and the first locking pin 44 is completely released, the top plate 2 can be freely rotated. Therefore, the top plate 2 is provided in the vicinity of the upper end of the column 31 by moving the front side of the top plate 2 upward or by moving the back side (screen plate 6 side) of the top plate 2 downward. It turns around the hinge 33 and gradually stands up. The curtain plate 6 is pivotally connected to the lock mechanism 4 and the curtain plate support rod 62 connected to the support column 31 and moves in conjunction with the top plate 2. Adjacent to the plate 2 and parallel to the top plate 2.

As shown in the lower right diagram of FIG. 12, when the groove 42 of the locking hook 43 is engaged with the second locking pin 45, the side stack table 1 is in a folded state. In the folded state, the latching hook 43 is urged toward the second latching pin 45 by the coil spring 46, and the folded state is maintained. The change from the use state to the folded state may be performed in the reverse manner to the change from the use state to the folded state. That is, the lever 5 is operated so that the tip of the lever 5 approaches the back side of the top plate 2, and the engagement between the groove 42 of the locking hook 43 and the second locking pin 45 is released, so that the folded state It is possible to change from to the use state.

  The lift-up caster 7a is preferably in a fixed state in both the used state and the folded state. That is, it is preferable that the lift-up casters 7a be in a fixed state except for moving the side stack table 1, and in a released state when moved.

  The change from the released state to the fixed state and the change from the fixed state to the released state are performed by operating the lift-up lever 71 of the lift-up caster 7a. Hereinafter, based on FIG. 19, the change from the release state to the fixed state will be described as an example. As shown in the upper diagram of FIG. 19, in the released state, the lift-up lever 71 points obliquely upward, and the stop pad 75 has the pad surface 79 positioned above the lowermost portion of the wheel 74. Therefore, in the released state, the wheels 74 are freely rotatable, and the lift-up casters 7a can be freely moved. When the lift-up lever 71 is pushed down, the stop pad 75 is gradually raised and lowered in conjunction with this. Then, when the lift-up lever 71 is rotated and fixed to a fixed position that points obliquely downward, the stop pad 75 comes into contact with the floor surface, and the wheels 74 float in the air. On the other hand, when the lift-up lever 71 is pushed up, the stop pad 75 is gradually raised in conjunction with this. Then, when the lift-up lever 71 is rotated and fixed to a release state that points obliquely upward, the pad surface 79 is positioned above the lowermost portion of the wheel 74, and the wheel 74 can be rotated.

<Effect>
In the side stack table 1 according to the embodiment described above, a pictogram that makes an image of an arrow as a whole is printed on the flat portion 55 of the lever 5 as the display 54 indicating the operation direction of the lever 5, and the surface of the flat portion 55 is the side stack. The table 1 is pointing upward in the folded state. Therefore, especially when the side stack table is folded, the flat portion 55 of the lever 5 is easily noticeable by the user, and the user can immediately confirm the presence of the lever 5 and understand the operation direction of the lever 5 as well. Can do. Further, the flat portion 55 of the lever 5 can suppress the hand that is gripped when the user grips the main body 51 of the lever 5 from being detached from the main body 51. As described above, according to the stack table according to the embodiment, it is possible to make the state of use or the folded state easier than before. The lever 5 is formed in an orange color different from the colors of the other parts of the side stack table 1. Therefore, the user can more easily understand the position of the lever 5 and the operation method of the lever 5. Further, since the lever 5 has a plate shape, the surface area of the lever 5 is increased as compared with, for example, a lever 5 having a rod shape, and the lever 5 becomes more conspicuous. Therefore, the user can more easily understand the position of the lever 5 and the operation method of the lever 5. Moreover, since the surface area of the lever 5 increases, it becomes easy to hold and the operability is improved. In addition, a plurality of convex portions 56 are provided on the back surface of the main body 51 of the lever 5 (the surface opposite to the surface facing the top plate 2), and an anti-slip effect is exhibited. Further, the lever 5 has a curved main body 51 and can increase the gap between the lever 5 and the top plate 2 as compared with the case where the lever 5 is a flat surface. As a result, for example, it is difficult to place a hand between the lever 5 and the top plate 2.

  In the above embodiment, the side stack table has been described as an example. However, the lever 5 can also be applied to a parallel stack table.

  The preferred embodiments of the present invention have been described above. However, the side stack table and the lever according to the present invention are not limited to these, and combinations thereof can be included as much as possible.

  For example, the spherical recess 77 formed in the lift-up lever 71 according to the above-described embodiment can have a rectangular shape, a polygonal shape, or the like. FIG. 20 is a perspective view of the lift-up caster in a fixed state according to Modification 1 as viewed from the front side. In the first modification, the lift-up lever 71 is formed with a rectangular recess 77 as an example of a polygonal recess. FIG. 21 is a perspective view of a lift-up caster in a fixed state according to Modification 2 as viewed from the near side. In Modification 2, the lift-up lever 71 is formed with a hexagonal depression 77 as an example of a polygonal depression. FIG. 22 is a perspective view of a lift-up caster in a fixed state according to Modification 3 as viewed from the near side. In the third modification, the lift-up lever 71 is formed with a plurality of linear grooves 77 extending from the front to the back. FIG. 23 is a perspective view of a lift-up caster in a fixed state according to Modification 4 as viewed from the front side. In the fourth modification, the lift-up lever 71 is formed with a plurality of linear grooves 77 extending in the width direction. FIG. 24 is a perspective view of a lift-up caster in a fixed state according to Modification 5 as viewed from the front side. In Modification 5, the lift-up lever 71 is formed with a plurality of wavy grooves 77 extending from the front to the back. FIG. 25 is a perspective view of a lift-up caster in a fixed state according to Modification 6 as viewed from the front side. In the modification 6, the lift-up lever 71 is formed with a plurality of wavy grooves 77 extending in the width direction. The recess 77 may be a protrusion protruding from the surface of the lift-up lever 77 instead of the recess (depression).

DESCRIPTION OF SYMBOLS 1 ... Side stack table 2 ... Top plate 3 ... Leg 31 ... Post 32 ... Horizontal member 33 ... Hinge 4 ... Locking mechanism 41 ... Cover 42 ... Groove 43 ... Locking hook 44 ... First locking pin 45 ... Second locking pin 46 ... Coil spring 47 ... Connecting member 48 ... Rod shaft 5 ... Lever 51 ..Main body 52 ... Base 53 ... Tip 54 ... Display 55 ... Flat part 6 ... Curtain plate 61 ... Upper hinge for curtain plate 62 ... Support rod for curtain plate 7 ... Caster 7a ... Lift up caster 71 ... Lift up lever 72 ... Mounting bolt 73 ... Adjuster 74 ... Wheel 75 ... Stop pad 76 ... Rotating shaft 77 ...・ Dimple

Claims (4)

A stack table that can be changed between the use state and the folded state,
A top plate that is in a horizontal state in use and is in a standing state in a folded state;
A leg that is provided on both sides of the back of the top plate and supports the top;
A lock that is fixed to the back side of the top plate and is pivotally connected to the upper portion of the leg so that the top plate is in a horizontal state or a standing state, and maintains the top plate in a horizontal state or a standing state. Mechanism,
A lever that is connected to the locking mechanism and changes the stack table to the use state or the folded state;
The lever is a flat portion in which a base end of a main body is rotatably connected to the lock mechanism, and a display indicating an operation method of the lever is attached to a front end of the main body, and the stack table is folded. A stack table having a flat portion pointing upward in the tatami state.   The stack table according to claim 1, wherein the lever has a plate shape, and the flat portion is formed by bending a tip of the main body portion. The lever is connected to the locking mechanism on the back side of the top plate so as to face the back surface of the top plate, and a plurality of levers are provided on the surface of the main body opposite to the surface facing the top plate. The stack table according to claim 1, wherein a concave portion or a convex portion is provided. It is a lever of the stack table that can be changed between the use state and the folded state,
The stack table is
A top plate that is in a horizontal state in use and is in a standing state in a folded state;
A leg that is provided on both sides of the back of the top plate and supports the top;
A lock that is fixed to the back side of the top plate and is pivotally connected to the upper portion of the leg so that the top plate is in a horizontal state or a standing state, and maintains the top plate in a horizontal state or a standing state. Mechanism,
A lever that is connected to the locking mechanism and changes the stack table to the use state or the folded state;
The lever is a flat portion in which a base end of a main body is rotatably connected to the lock mechanism, and a display indicating an operation method of the lever is attached to a front end of the main body, and the stack table is folded. A lever having a flat portion pointing upward in the tatami state.

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