JPH0584248U - Sitting chair - Google Patents

Abstract

(57) [Summary] [Structure] The support 2 is attached to the seat 1 by the hinges 3 with the upper end of the rectangular support 2 being in contact with the center of the lower surface of the rectangular seat 1. A hook 6 provided at the other end of a rod 5 having one end attached to the support body 2 is fitted to a ring 4 attached to the seat plate 1 so that the support body 2 is vertically fixed to the seat plate 1 and used as a seat chair. .. When carrying or storing, the hook 6 is removed from the ring 4 and the support 2 is folded. [Effect] Since the left and right sides of the support body 2 are wide spaces during use, neither foot touches the support body 2 and no discomfort or pain is given. In addition, it is possible to easily assemble and release the assembly.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sitting chair that is laid under a rail when sitting.

[0002]

[Prior Art]

 As the sitting chair, for example, the following one is already on the market. That is, the seat plate and the bottom plate are arranged in parallel, and the two are connected by the two support legs that intersect in an X shape. Both support legs are rotatably connected to each other at a crossing portion by a rod. The upper end of one of the support legs is rotatably attached to the lower surface of the seat plate near the right end, and the lower end of the support leg is a free end. The lower end of the other support leg is rotatably attached to the upper surface of the bottom plate near the right end, and the upper end is a free end. Then, a U-shaped recess that fits both free ends is provided in two steps on the left and right sides near the left end of the bottom surface of the seat plate and the top surface of the bottom plate. If the free ends of both support legs are fitted into the outer dents, respectively, the seat plate can be supported at a lower position, and if fitted into the inner dents, it can be supported at a higher position. When not in use, remove the free end from the recess and squeeze both support legs to create a compact state where the seat plate and bottom plate overlap.

[0003]

[Problems to be solved by the device]

 The conventional sitting chair described above has the following drawbacks. This sitting chair is assembled by fitting the upper and lower free ends on the same side of the X-shaped crossed support legs into the U-shaped recesses. Then, between the seat plate and the bottom plate, put both feet on the left and right sides of the X-shaped support legs, and sit on the seat plate with the picks on it. However, at this time, both supporting legs spread out in the X-shape to the left and right, so both feet touch both supporting legs. This is a state of continuing discomfort. Moreover, sitting down for a long time even causes pain. It is often the case that a person wearing a kimono uses a sitting chair. In this case, there is no choice but to sit straight while widening the hem of the kimono by the amount that both supporting legs expand to the left and right. The work of widening the skirt is not only troublesome, but also takes time. In addition, the height of this product can be adjusted only in the upper and lower two steps, and only a small amount can be adjusted. Not all people can reach the optimum height, and some cannot even use it.

Furthermore, at the time of assembly, the upper and lower free ends of both supporting legs must be fitted into the corresponding upper and lower U-shaped recesses at the same time. At this time, it is not possible to fit them one by one. It is very difficult to fit the upper and lower recesses at the same time. Often, even if one of them enters, the other does not, and sometimes it is necessary to try again and again. For this reason, it becomes a troublesome work and takes time. During assembly, one of the two free ends of the two support legs should fit into the inner recess and the other should fit into the outer recess, or one of the free ends should not fit into the upper and lower recesses. I sometimes misunderstand that it is completely assembled and sit down without properly fitting both free ends. If you do so, you may even destroy the sitting chair. The problem to be solved by the present invention is to provide a sitting chair that does not touch both feet during use, can be adjusted in height continuously, is easy to assemble, and is free from assembly errors.

[0005]

[Means for Solving the Problems]

 The sitting chair according to the present invention solves such a problem and is as follows. That is, it is composed of a seat plate 1 and a support body 2, and the support body 2 is held or held by the seat plate 1 with the upper end of the support body 2 being in contact with the center of the lower surface of the seat plate 1 and the support body 2 being vertical. This is a seat chair provided between the seat plate 1 and the support body 2 for releasing the seat. It is desirable that the seat plate 1 has a rectangular plate shape. The support 2 may have a rectangular plate shape, a cylindrical shape, or any other shape / structure. As a means for holding or releasing the support 2 with respect to the seat plate 1 with the upper end of the support 2 being in contact with the center of the lower surface of the seat plate 1 and making the support 2 vertical, It is also possible to provide concaves and convexes that fit into each other between the central portion of the lower surface and the upper end portion of the support body 2. For example, as in Examples 3 and 4 to be introduced later, a protrusion 17 is provided at the upper end of the support body 2 and a hole 24 or a recess into which the protrusion 17 just fits is formed in the center of the lower surface of the seat plate 1. The support 2 may be held vertically with respect to the seat plate 1 by providing the protrusion 17 in the hole 24 or the recess. Instead of providing the support 2 with a protrusion, the entire upper end of the support 2 may be fitted into the recess of the seat plate 1. Conversely, a protrusion may be provided in the center of the lower surface of the seat plate 1 and the protrusion may be fitted in a hole or a recess provided in the upper end of the support 2. Further, as the means, as in Examples 1 and 2 to be introduced later, one using the hinge 3 and the rod 5 and one using the screw hole 7 and the screw rod 8 can be used. .. As in the third embodiment, the sliding lock bar 23 may be provided on the seat plate 1 side, and the lock bar 23 may be held by being inserted into the hole 16 formed on the support body 2 side. Alternatively, one end of the support rod 13 may be rotatably attached to one end of the seat plate 1 and the middle portion of the support 2 may be rotatably attached to the other end of the support rod 13. An unevenness is formed between the center of the lower surface of the seat plate 1 and the upper end of the support body 2, and one end of the support rod 13 is rotatably attached to one end of the seat plate 1 and is attached to the other end of the support rod 13. The center of the support 2 may be rotatably attached. In such a case, the support rod 13 may be urged by the spring 26 toward the seat plate 1 in the direction of lying. The support rods 13 may be separately attached to the left and right sides of the support body 2, or may be one U-shaped piece so that the left and right sides of the support body 2 are similarly sandwiched by both legs. The support rod 13 may be one, and may be attached to the center of the support 2 or to the left or right. The spring 26 may be a coil spring, a leaf spring, or the like. The means may be a combination of the various methods introduced above in other ways. Further, any other one can be adopted. Further, an adjustment piece 19 that slides up and down may be provided on the support body 2 so that the height of the seat plate 1 can be adjusted. The adjusting piece 19 may have any shape and structure, and the mechanism for moving it up and down with respect to the support 2 may be arbitrary. It is convenient to add a scale to the support 2 or the adjustment piece 19. At the first use, try several times to find the height that suits you best and remember the scale. From the next time, use it according to the scale. Also, the standard height position based on height, foot size, weight, etc. may be displayed. You may display the scale which makes the height of the seat plate 1 an actual height.

[0006]

[Action]

 The seat chair according to the present invention is stored and carried while releasing the holding of the seat 2 with the upper end of the support body 2 in contact with the center of the lower surface of the seat plate 1. In the case of use, the upper end of the supporting body 2 is applied to the center of the lower surface of the seat plate 1 to make the supporting body 2 vertical, and the supporting body 2 is supported by means for holding the supporting body 2 against the seat plate 1. Hold vertical. In this state, the seat plate 1 is made horizontal and the support 2 is made vertical, and both feet are placed below the seat plate 1 and on the left and right sides of the support 2, and the hips are placed on the seat plate 1 to sit straight. Although the support body 2 is in a state of one leg, both legs are located on the left and right sides of the support body 2 to prevent wobbling from side to side. As a means for holding or releasing the support 2 with respect to the seat plate 1 in a state where the upper end of the support 2 is placed against the center of the lower surface of the seat plate 1 and the support 2 is vertical, In the case of adopting the one in which unevenness that fits between the center part of the surface and the upper end of the support 2 is adopted, the support 2 is held by fitting the unevenness, and the fitting of the unevenness is released. By doing so, the holding of the support 2 is released. In the case where one end of the support rod 13 is rotatably attached to one end of the seat plate 1 and the middle of the support body 2 is rotatably attached to the other end of the support rod 13, The support bar 13 also serves to hold the state when the support 2 is made vertical. When the support body 2 is folded, the support body 2 can be rotated smoothly with the mounting end of the support rod 13 as a fulcrum. An uneven surface is provided between the center of the lower surface of the seat plate 1 and the upper end of the support body 2, and one end of the support rod 13 is rotatably attached to one end of the seat plate 1 and is attached to the other end of the support rod 13. Since the operation of the rotatably mounted middle part of the support body 2 is clear from the above, the description is omitted. In addition, in such a structure, when the support rod 13 is further urged by the spring 26 toward the seat plate 1 side, in addition to the unevenness and the action of the support rod 13, the spring 26 causes the support rod 13 to move. Since the force pressing the support body 2 toward the seat plate 1 acts via the support body 2, the force for keeping the support body 2 in the vertical state becomes large. Further, when the support 2 is laid down on the seat plate 1 side when not in use, the spring 26 acts to press the support 2 against the seat plate 1. In the case where the support piece 2 is provided with an adjusting piece 19 that slides up and down in a state where the support body 2 is vertical, the height of the seat plate 1 is adjusted by moving the adjusting piece 19 up and down.

[0007]

EXAMPLES Example 1 FIG. 1 is a perspective view showing Example 1. In FIG. 1, reference numeral 1 denotes a rectangular base plate. The upper end of a rectangular plate-shaped support body 2 is applied to the center of the lower surface of the seat plate 1 so that the support body 2 can be erected vertically with respect to the seat plate 1 with a hinge 3 or can be folded to lie down. Is attached to. A ring 4 is attached to a position near the outer side of the lower surface of the seat plate 1 on the side opposite to the side where the hinge 3 is attached. Then, one end of the rod 5 is attached to the middle of one side surface of the support body 2, and a hook 6 is provided at the other end of the rod 5. The rod 5 has such a length that the hook 6 can be just fitted to the ring 4 in a state where the support 2 is perpendicular to the seat plate 1. The thing shown in FIG. 1 is used in the state shown in FIG. That is, the support 2 is made perpendicular to the seat plate 1, and the hook 6 of the rod 5 is fitted to the ring 4 of the seat plate 1 to fix the support 2. Then, the support body 2 is made vertical, and both legs are fitted to the left and right sides of the support body 2 at the lower position of the seat board 1 and the seat is seated on the seat board 1 with a shoulder. The support 2 is on one leg, but one leg is sufficient because both legs are located on the left and right of the support 2 and prevent wobbling from side to side. When not in use, remove the hook 6 from the ring 4 and fold the support 2. Store or carry in this state. Example 2 Figure 2 is an exploded perspective view showing a second embodiment. In the second embodiment, the seat plate 1 is provided with the screw hole 7 in the center of the lower surface thereof, the other side is provided with the screw rod 8 above the support body 2, and the screw rod 8 is screwed into the screw hole 7 to support the seat plate 1. The body 2 is attached. The support 2 has a cylindrical shape, and a screw hole 9 is provided at the lower end. A screw rod 10 is screwed into the screw hole 9, and a disc-shaped support piece 11 is attached to the lower end of the screw rod 10. In the structure shown in FIG. 2, the seat plate 1 and the support 2 are separated when not in use. When using, the screw rod 8 of the support 2 is first screwed into the screw hole 7 of the seat plate 1. In other words, if the seat plate 1 is too high or too low when seated upright, the support plate 11 is turned to move the support plate 11 up and down to adjust the height of the seat plate 1.

Third Embodiment FIGS. 3 and 4 are perspective views showing a third embodiment. In the third embodiment, two mounting brackets 12 are mounted near one end of the seat plate 1, and two supporting rods 13 are mounted by the mounting bracket 12 so as to be rotatable. The support 2 is attached to the tips of the two support rods 13 so that they can be rotated. The support 2 is of a U-shape and has legs 14 formed on the left and right, and ribs 15 are provided on the inside of both legs 14. A hole 16 is formed in the vicinity of the upper end of the support body 2 from the side, a protrusion 17 is formed at the upper end of the portion where the hole 16 is formed, and a hole 18 is also formed in the protrusion 17 from above. Then, an adjustment piece 19 having grooves on both sides of which the ribs 15 of the legs 14 fit so as to fit exactly between the legs 14 of the support body 2 is prepared. An adjusting piece 19 is fitted between them. A screw rod 20 is attached between the upper end portion of the support 2 and the adjustment piece 19, and a nut 21 attached to the screw rod 20 is rotated so that the protruding length of the adjustment piece 19 from the support 2 can be adjusted. ing. A separate mounting bracket 22 is mounted on the seat plate 1 at a position between the mounting brackets 12, and the lock bar 23 is mounted by the mounting bracket 22 so as to be movable left and right. In addition, a hole 24 is formed in the center of the seat plate 1 in such a size that the projecting portion 17 of the support body 2 fits into it. FIG. 3 shows a state when not in use. The support 2 is placed on the seat plate 1, and the tip of the lock bar 23 is inserted into the hole 18 of the protrusion 17 to fix the support 2 to the seat plate 1 so as not to move. When using, the lock rod 23 is pulled out from the hole 18, the supporting body 2 is erected, the projecting portion 17 is fitted into the hole 24 of the seat plate 1, and then the tip of the lock rod 23 is inserted into the hole 16 of the support body 2. The support 2 is firmly held in the vertical direction with respect to the seat plate 1, and the state shown in FIG. 4 is obtained. The height of the seat plate 1 is adjusted by turning the nut 21 and adjusting the protruding length of the adjusting piece 19.

Fourth Embodiment FIG. 5 is a perspective view showing a fourth embodiment. The fourth embodiment is an improved type in which the third embodiment is slightly simplified and the lock rod 23 is not used. That is, the support member 13 allows the support member 2 to lie parallel to the seat plate 1 or to stand vertically, and the adjustment piece 19 can be moved in and out of the support member 2. Same as in Example 3. However, the following points are different from those of the third embodiment. First, inside the portion rotatably mounted by both mounting brackets 12, the inner portions of both support rods 13 are folded back in a U-shape outwardly to form a folded piece 25, and the folded piece 25 is provided. Springs 26 are laid between the seat plate 1 and the seat plate 1, and the springs 26 urge the support rods 13 toward the seat plate 1 side. Further, the seat plate 1 is provided with recesses 27 into which the folding pieces 25 respectively fit when the support bars 13 lie down. The projecting portion 17 of the support body 2 has a columnar shape, and the hole 24 formed in the seat plate 1 has a circular shape having a size into which the cylindrical projecting portion 17 fits. Further, a through hole 28 is opened in the left-right direction from the vicinity of the upper end to the vicinity of the lower end of the adjustment piece 19, and a bolt 29 penetrating the through hole 28 is mounted by being attached between both legs 14 of the support body 2. A nut 30 is screwed into each of these. Then, the lower end of the adjusting piece 19 is formed in an arc shape, and a cushion material 31 is attached to the lower end thereof. The thing of Example 4 is used as follows. First, as shown in FIG. 5, the support 2 is erected vertically with respect to the seat plate 1, and the protrusion 17 of the support 2 is fitted into the hole 24 of the seat plate 1. Then, loosen the nut 30 to free the adjustment piece 19, turn the nut 21 fitted to the screw rod 20 to adjust the height of the adjustment piece 19, and then tighten the nut 30 to fix the adjustment piece 19 so that it does not move. .. Although it is used in this state, the cushioning material 31 hits the floor surface or the like during use, so there is no risk of damaging the floor surface or making frictional noise, and it is comfortable to sit on. Further, since the bottom surface of the adjusting piece 19 has an arcuate shape, it is possible to cope with the posture of a sitting person who leans forward and backward. Since the spring 26 presses the support body 2 toward the seat plate 1 via the support rod 13, the support body 2 does not come off the seat plate 1 and fall. Then, when not in use, the protruding portion 17 of the support body 2 may be pulled out from the hole 24 of the seat plate 1, and the support body 2 may be laid down and placed on the seat plate 1. When stacked, a force of the spring 26 presses the support body 2 against the seat plate 1 via the support rod 13, so that the seat plate 1 and the support body 2 are integrated. Therefore, it is convenient in terms of storage and carrying.

[0010]

[Effect of the device]

 When the support 2 is held vertically with the upper end of the support 2 placed against the center of the lower surface of the seat 1 and the support 2 is held vertically, the space between the left and right sides of the support 2 is wide. Therefore, both feet do not touch the support 2. Even if a person in a kimono uses it, it is enough to widen the skirt of the kimono by a small amount of the small support 2. In addition, it is possible to easily and easily hold the support body 2 to the seat plate 1 with the upper end of the support body 2 in contact with the center of the lower surface of the seat plate 1 in a state where the support body 2 is vertical and to release the holding. It can be assembled and disassembled in a short time. As a means for adopting the means, which has concave and convex portions that fit into each other between the central portion of the lower surface of the seat plate 1 and the upper end portion of the support body 2, it is easy to support the supporting body by fitting the concave and convex portions. 2 can be held, and the holding of the support 2 can be easily released by releasing the fitting of the unevenness. In the case where one end of the support rod 13 is rotatably attached to one end of the seat plate 1 and the middle part of the support body 2 is rotatably attached to the other end of the support rod 13, the support plate 1 and the support Since the support rod 13 is connected to the body 2, it is convenient in terms of storage and carrying. An uneven surface is provided between the center of the lower surface of the seat plate 1 and the upper end of the support body 2, and one end of the support rod 13 is rotatably attached to one end of the seat plate 1 and is attached to the other end of the support rod 13. The effect of the rotatably mounted middle part of the support body 2 is obvious from the above description, and therefore its explanation is omitted. When the support bar 13 is further urged by the spring 26 toward the seat plate 1 side, the force of the spring 26 keeps the support 2 perpendicular to the seat plate 1 during use. Is large, and when not in use, the seat plate 1 and the support body 2 overlap and become an integral body, which is convenient in terms of storage and carrying. In the case where the slide 2 is provided on the support 2, the height can be adjusted steplessly.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment.

FIG. 2 is an exploded perspective view showing a second embodiment.

FIG. 3 is a perspective view showing a third embodiment.

FIG. 4 is a perspective view showing a third embodiment.

FIG. 5 is a perspective view showing a fourth embodiment.

[Explanation of symbols]

 1 seat plate 2 support 13 support rod 19 adjusting piece 26 spring

Claims (6)

[Scope of utility model registration request] 1. A seat plate (1) and a support (2),
The support (2) is held or released from the seat plate (1) in a state where the upper end of the support (2) is applied to the center of the lower surface of the seat plate (1) and the support (2) is vertical. A seat which is provided between the seat plate (1) and the support body (2) with a means for moving the seat. 2. The seat plate (1) with the upper end of the support (2) being in contact with the center of the lower surface of the seat plate (1) and the support (2) being vertical.
On the other hand, the means for holding the support body (2) or releasing the support is formed by the concave and convex portions provided between the central portion of the lower surface of the seat plate (1) and the upper end portion of the support body (2) which are fitted to each other. The sitting chair according to claim 1. 3. The seat plate (1) with the upper end of the support (2) being in contact with the center of the lower surface of the seat plate (1) so that the support (2) is vertical.
On the other hand, a means for holding the support body (2) or releasing the holding means has one end of the support rod (13) rotatably attached to one end of the seat plate (1) and the other of the support rod (13). The center of the support (2) is rotatably attached to the end,
The sitting chair according to claim 1. 4. A seat plate (1) and a support (2),
A concave and convex portion is provided between the center of the lower surface of the seat plate (1) and the upper end of the support body (2), and one end of the support rod (13) is rotatably attached to one end of the seat plate (1). A seat chair having a middle portion of the support body (2) rotatably attached to the other end of the support rod (13). 5. The seat chair according to claim 4, wherein the support rod (13) is urged by the spring (26) toward the seat plate (1) in the direction of lying down. 6. The support body (2) according to claim 1, wherein the support body (2) is provided with an adjusting piece (19) which slides up and down in a state where the support body (2) is vertical. This is the sitting chair.