JP4057231B2 - furniture - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to furniture such as a chair or a bed that needs to change the size of a support surface that supports the body according to the physique of the user.
[0002]
[Prior art]
In furniture that receives the load of the user's body, such as a chair or bed, if the position of the effective support surface that can properly support the body does not match the user's physique, the user has a strong posture. It becomes an unnatural appearance such as being able to get a stable feeling of use. Therefore, for example, in a chair, the backrest part for supporting the user's back is configured to be movable up and down, and the entire position of the backrest part is moved up and down so that the height position of the backrest part becomes the user's physique. The one that is changed together is known.
[0003]
[Problems to be solved by the invention]
However, in such a chair, the backrest part can be moved up and down according to the user's physique, but the effective support area of the backrest part that can substantially support the back changes. is not. Therefore, for example, if the backrest part is moved to a too high position, there arises a problem that the user's waist cannot be supported by the backrest part. Moreover, since a correspondingly large mechanism component is required to move the entire backrest portion up and down, there is a possibility of increasing the size and weight of the chair.
[0004]
In view of the above problems, the present invention is not limited to the chair as described above, but in furniture that needs to support the load of the user, the size of the effective support area that can substantially support the body. By changing the height, the purpose is to construct furniture that provides a comfortable feeling of use.
[0005]
Therefore, the present invention provides a furniture main body, a tension fabric that is supported by receiving a user's load on at least the surface side of the furniture main body, and a support portion that is provided on the furniture main body and supports tension in the tension fabric. A fixed support portion provided with the upper end portion and lower end portion of the upholstery fixed to the furniture main body, and a movable support portion provided on the furniture main body so as to be movable with respect to the fixed support portion. The stretch fabric is supported in a state where tension is applied between the fixed support portion and the movable support portion, and the tension support position is changed by changing the support position of the stretch fabric by the movable support portion. The size of the effective support area that can substantially support the user's load on the ground can be changed.
[0006]
When the furniture having such a configuration is applied to a chair, a bed, or the like that preferably corresponds to the user's physique, the size of the effective support area in the upholstery that can substantially support the user can be adjusted according to the physique. Therefore, the user can obtain a comfortable feeling of use without taking an unnatural posture.
[0007]
In particular, in the present invention, as described above, in order to easily change the support position with respect to the upholstery, the support portion is provided with the upper end and the lower end of the upholstery fixed to the furniture body, It consists of a movable support part provided in the furniture body so as to be movable with respect to the fixed support part, and the stretch fabric is supported in a state where tension is applied between the fixed support part and the movable support part.
[0008]
Furthermore, an effective embodiment is one in which the movable support portion includes a holding portion that holds and supports a part of the stretched fabric in the thickness direction.
[0009]
In a specific embodiment, the sandwiching portion includes a pair of rollers that can rotate around a horizontal support shaft, and the pair of rollers sandwiches the tension in the thickness direction.
[0016]
When the chair is applied to the furniture having the above configuration, the furniture body is a chair body for seating the user, and the upholstery is configured to constitute the front side of the back portion of the chair body, and the movable support portion by providing the upper end of the fixed support set on the end portion side of the backrest portion, the effective support area of the size of the user useful chair is easily made to correspond to the height of the back of the backrest Can be configured.
[0017]
In addition, when a bed is used as furniture, if the furniture body is used as a bed body for the user to lie down and the upholstery constitutes the upper surface side of the bed body, it corresponds to the height of the user. It is possible to construct a useful bed that can change the size of the upper surface of the bed body.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0019]
( Comparative example )
FIG. 1 shows a chair A1 applied as furniture according to this comparative example . The chair A1 includes a chair body including a backrest A1a, a seat A1b, and a leg A1c that supports the chair A1 as a furniture body, and supports the load received from the back of the seated person on the backrest A1a. Upholstery 1 is provided. Note that any configuration may be applied to the seat portion A1b and the leg portion A1c, and the description will be omitted because the comparative example does not have any special characteristics.
[0020]
As shown in FIGS. 1 and 2, the backrest A1a in the present comparative example is configured so that the vertical size of the effective support region X1 that can substantially support the back of the seated person on the upholstery 1 can be changed. It is a thing. More specifically, the backrest portion A1a has a pipe-like fixed support portion 2 in which the lower end portion 2b is supported by a leg portion A1b and other appropriate portions, and a telescopic shape on the upper end portion 2a side of the fixed support portion 2. And a pipe-like movable support portion 3 fitted together, and the fixed support portion 2 and the movable support portion 3 constitute a support portion Z1 that supports the stretch fabric 1. The movable support portion 3 is supported by the fixed support portion 2 so as to be vertically slidable by being fitted to the fixed support portion 2 as described above, and the sliding state can be locked at an arbitrary position via a lock means (not shown). I am doing so. Further, a support member 23 is provided on the lower end portion 2 b side of the fixed support portion 2, which has a proximal end attached to the fixed support portion 2 and has a distal end protruding toward the front and upper side of the fixed support portion 2. On the other hand, a support member 33 curved in a bow shape is also provided at the upper end portion 3a bent in a “<” shape in a side view in the movable support portion 3, and the support members 23, 33 extend and contract on the front side. It is provided so as to hang over the upholstery 1 which is poor in nature.
[0021]
When attaching the upholstery 1, the fixed support portion 2 is formed with a long hole 21 that opens in the side surface and extends vertically, and the movable support portion 3 is provided with a pulley 32 positioned in the long hole 21. The pulley 32 is supported by a pin 32 a that passes through the long hole 21 and spans the movable support portion 3. In addition, a roller 31 that is rotatable about a horizontal axis is attached to the upper end portion 3 a of the movable support portion 3. Then, one end of the upholstery 1 (referred to as a use end 1a) on the surface side of the backrest A1a is fixed at an appropriate position such as the lower end 2b of the fixed support 2 and the upholstery 1 is supported by upper and lower support members. 23, 33, folded downward via the roller 31 of the movable support portion 3, and further hung around the pulley 32, and finally the other end portion (referred to as the counter-use end portion 1 b) is fixed support portion. 2 is fixed to a mounting portion 22 provided in the vicinity of the upper end portion 2a. A through hole 34 that opens upward is formed on the upper end 3 a side of the movable support portion 3, and the counter-use end 1 b side of the stretched fabric 1 folded back by the roller 31 is connected to the movable support portion from the through hole 34. 3 and the fixed support portion 2 are accommodated in the interior of the fixed support portion 2, so that all the places around the pulley 32 and the fixed portion to the attachment portion 22 are not visible from the outside to improve the appearance.
[0022]
By attaching the upholstery 1 in this way, for example, when the movable support portion 3 at the lowered position shown in FIG. 1 (solid line) and FIG. The upholstery 1 is fed out from the through-hole 34 at a speed, and is further fed out to the use position side which is the surface side of the backrest portion A1a via the roller 31. As a result, the vertical dimension of the effective support region X1 that can effectively support the back of the seated person on the use position side of the upholstery 1 is expanded upward at substantially the same speed as the upward movement speed of the movable support part 3. To do. On the other hand, when the movable support portion 3 located at the ascending position shown in FIG. 1 (imaginary line) and FIG. 2B is moved down, the pulley 32 entrains the upholstery 1 at approximately twice the speed and the roller 31. As a result, the upright dimension of the effective support region X1 is substantially the same as the lowering speed of the movable supporting part 3 as a result of the lifting of the upholstery 1 from the use position side at a substantially equal speed to the lowering speed of the movable supporting part 3. To reduce downward. That is, the chair A1 of this comparative example is partly extended to the use position side with the upward movement of the movable support 3 while being used with the downward movement of the movable support 3. Since it is pulled out from the position side, an appropriate amount of upholstery 1 can always be stretched between the upper and lower support members 23 and 33 regardless of the position of the movable support portion 3.
[0023]
As described above, when the chair A1 is applied as furniture, the vertical dimension of the upholstery 1 on which the seated person as the user leans against the backrest portion A1a, that is, the back of the seated person can be substantially supported. The vertical width dimension of the effective support region X1 can be adjusted according to the physique, and at that time, a gap is generated at a place where the seated person's waist should be supported as in the conventional case where the entire backrest portion is moved up and down. There will be no problem.
[0024]
In particular, the support portion Z1 that supports the upholstery 1 is composed of a fixed support portion 2 and a movable support portion 3 formed on the backrest portion A1a of the chair body that is the furniture body, and the fixed support portion 2 and the movable support portion 3 Since the upholstery 1 is stretched between them, it is possible to appropriately and easily change the size of the effective support region X1 of the upholstery 1 with the movement of the movable support 3 relative to the fixed support 2.
[0025]
At that time, a part of the upholstery 1 is fixed so that it is drawn out to the use position side or pulled out from the use position side as the movable support part 3 moves up and down with respect to the fixed support part 2. Therefore, even if the upholstery 1 of this comparative example is poorly stretchable, the necessary amount of upholstery is always maintained regardless of the position of the movable support 3 along the fixed support 2. It is possible to feed the seat 1 to the use position side in a tensioned state and support the seated person's back appropriately.
[0026]
As a specific structure for that purpose, the use end portion 1a side of the upholstery 1 is fixed to the fixed support portion 2, folded back once at the upper end portion 3a of the movable support portion 3, and then folded again at another portion of the movable support portion 3. Since the counter-use end portion 1b side is fixed to the fixed support portion 2, even with such a simple structure, it is possible to easily feed or pull out the tension fabric 1 at a speed corresponding to the operation of the movable support portion 3. . In particular, since the movable support portion 3 corresponding to the folding position of the upholstery 1 is provided with a pulley 32 and a roller 31, slipping when the upholstery 1 is extended and pulled out is improved, and the reliability of the operation is improved. Is possible.
[0027]
Furthermore, since the movable support portion 3 and the fixed support portion 2 are fitted in a telescope shape, the operation of the movable support portion 3 can be further stabilized and the appearance can be improved.
[0028]
In this comparative example , the same effect can be obtained not only with the above-described structure in which the upholstery 1 is directly wound around the pulley 32 but also with the structure described below. The same members as those in the above-described comparative example will be described with the same reference numerals.
[0029]
That is, as an example, what is shown in FIG. 3 is an enlargement of the backrest portion A2a of the same chair as the comparative example described above. When the difference from the above is specifically described, the dimension from the use end portion 210a of the upholstery 210 to the counter use end portion 210b is set shorter than the above, and a string shape is formed on the counter use end portion 210b. An end portion 240a of the traction tool 240 is attached. A wire, a thread, or the like is applied to the traction tool 240, and a belt-like one can also be applied. Then, the counter-use end portion 210b of the upholstery fabric 210 is hung around the roller 31 provided on the upper end portion 3a of the movable support portion 3 and folded, and then, the traction tool 240 is hung around the pulley 32 and the other end portion 240b is turned on. It is fixed to the attachment portion 22 of the fixed support portion 2. In addition, the attachment structure in the use end part 210a side of the tension fabric 210 is the same as that of the said 1st comparative example . By attaching the upholstery 210 in this way, when the movable support portion 3 located at the lowered position shown in FIG. 3A is moved up, the traction tool 240 can be moved as in the case of the upholstery 1 in the above-described comparative example . It is paid out from the pulley, and accordingly, the upholstery 210 is drawn out to the use position side. On the contrary, when the movable support portion 3 in the raised position shown in FIG. 3B is moved downward, the stretch fabric 210 is pulled up from the use position side as the pulley 32 entrains the traction tool 240. As a result, the vertical dimension of the effective support region X2 of the upholstery 210 is expanded or reduced. In addition, in this modified example, although the same effect as the first comparative example is achieved, the area of the upholstery 210 to be used can be minimized, so that the cost can be effectively reduced. it can.
[0030]
Furthermore, as another modified example, the one shown in FIG. 4 can be cited. This is also an enlarged view of the backrest portion A3a of the chair, and the mounting structure on the use end portion 310a side of the upholstery 310 is the same as described above. Then, the counter-use end 310b of the upholstery 310 is wound around the roller 31 of the movable support portion 3 and turned back, and then attached to the upper end 340a of a spring 340 which is a kind of elastic member. The lower end portion 340 b of the spring is fixed to the fixed support portion 2. Even when the upholstery 310 is attached in such a configuration, when the movable support portion 3 in the lowered position shown in FIG. 4A is moved up along the fixed support portion 2, the elastic force of the spring 340 is obtained. Against this, the upholstery 310 is lifted to the movable support portion 3 and is fed out to the use position side which is the surface side of the backrest portion A3a via the roller 31. Conversely, when the movable support portion 3 in the raised position shown in FIG. 4B is moved downward, the tension 310 is pulled up from the use position side via the roller 31 by the stored restoring force of the spring 340. As a result, the vertical dimension of the effective support region X3 of the upholstery 310 is expanded or reduced. Also in this modification, the area of the upholstery 310 to be used can be minimized and the cost can be reduced.
[0031]
(Embodiment)
FIG. 5 shows a chair A4 applied as furniture according to the present embodiment. This chair A4 is also provided with a backrest A4a, a seat A4b, and a leg A4c that supports them as a chair body that is a furniture body, and the backrest A4a supports the load received from the seated person's back. 410 is provided. In addition, description is abbreviate | omitted about seat part A4b and leg part A4c.
[0032]
The backrest portion A4a includes a fixed support portion 420 that stands up substantially in a straight line with the lower end portion 420b supported by a leg portion A4b and other appropriate portions, and a movable support portion 430 that is slidably mounted along the fixed support portion 420. The fixed support portion 420 and the movable support portion 430 constitute a support portion Z4 that supports the stretched fabric 410 in a stretched state, and the sliding state of the movable support portion 430 is arbitrarily set via a lock means (not shown). It can be locked at the position. The movable support portion 430 includes a pair of rollers 431 and 432 that can rotate around the horizontal support shaft. These rollers 431 and 432 constitute a sandwiching portion Y that sandwiches a tension fabric 410 to be described later in the thickness direction. Further, a support member 423 similar to that of the comparative example is provided at the lower end portion 420b of the fixed support portion 420.
[0033]
The stretch fabric 410 is poor in elasticity as in the first embodiment, and the lower end portion 410a is attached to the lower end portion 420b of the fixed support portion 420 and bridged to the front side of the support member 423. At the same time, the upper end portion 410 b is attached to the upper end portion 420 a of the fixed support portion 420. At that time, the tension fabric 410 is passed between the pair of rollers 431 and 432 of the movable support portion 430 between the upper end portion 410b and the lower end portion 410a. By doing so, the upholstery 410 is supported in a state where tension is applied between the support 423 member and a portion passing between the rollers 431 and 432, and the tensioned region is seated on the seated person. This is an effective support region X4 that can effectively support the back of the person.
[0034]
In the chair A4 having such a configuration, when the movable support portion 430 is slid up and down along the fixed support portion 420 according to the physique of the seated person, the heights of the rollers 431 and 432 provided on the movable support portion 430 are increased. The position also changes, and as a result, the distance from the support member 423 to which the tension of 410 is applied to the sandwiching portion Y sandwiched between the pair of rollers 431 and 432, that is, the solid line and the imaginary line in FIG. Thus, the vertical dimension of the effective support region X4 can be easily adjusted.
[0035]
The present invention is not limited to the above-described embodiments, and when applied to a chair as furniture, the upholstery that is a constituent element of the backrest portion is made of a stretchable material, and the upholstery is fixed. The upholstery stretches by moving the movable support up and down with respect to the support and movable support, and as a result, the effective support area of the upholstery corresponds to the physique of the seated person. It can also be changed. In addition, the relationship between the fixed support portion, the movable support portion, and the upholstery is applied to the seat portion of the chair, and the effective support area of the upholstery where the seated person can effectively sit on the upholstery is adjusted. Alternatively, even when a bed is applied as furniture, the effective support area on the bed upper surface that the user can lie down according to the physique may be changed.
[0036]
In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
[0037]
【The invention's effect】
The present invention is implemented in the form as described above, and has the following effects.
[0038]
That is, the furniture of the present invention is supported in a stretched state that directly receives the load of the user when constructing furniture in which the size of the effective support area for supporting the user needs to be adjusted according to the physique. The support position of the upholstery by the support part for doing is changed. Therefore, by adjusting the size of the effective support area on the upholstery according to the physique, there is a problem that a gap is generated in a part of the part that should support the user like a conventional chair in which the entire backrest moves up and down. It is possible to solve the problem, and it is possible to give the user a comfortable feeling without taking an unnatural posture.
[0039]
The support portion has a fixed support portion fixed to the furniture body and a movable support portion provided so as to be movable with respect to the fixed support portion, and a stretch is stretched between the fixed support portion and the movable support portion. In this case, it is possible to easily change the support position of the upholstery by the support portion and accurately support the user's body over the entire effective support area of the upholstery.
[0040]
If a part of the tension fabric is drawn out to the use position side with the movement of the movable support part, or conversely pulled out from the use position side, even if the tension fabric is particularly poor in elasticity, Regardless of the position of the movable support portion, it is possible to feed the stretched fabric to the use position as much as necessary with the tension always applied.
[0041]
As a specific configuration for this purpose, the use end side of the upholstery is attached to the fixed support part side, the non-use end part side is folded back at a part of the movable support part, and then folded back at another part of the movable support part. If it is attached to the fixed support portion, the above-described functions can be realized with a simple structure and a good appearance. Also, the use end side of the upholstery fabric has the same configuration, and when a string-like or belt-like traction tool is attached to the non-use end side, the anti-use end side is folded back by a part of the movable support part. Further, the same effect can be obtained by attaching the traction tool to the fixed support portion at a position where the traction tool is folded at another portion of the movable support portion. Alternatively, the above-mentioned function that is also effective can be realized by folding back the counter-use end portion at a part of the movable support portion and attaching the counter-use end portion to an elastic member provided on the fixed support portion. In particular, in such cases, a pulley is provided at the movable support portion corresponding to the folding position of the upholstery, and the pulley is turned up at a position where the upholstery is hung around the pulley, thereby accompanying the movement of the movable support portion. It is possible to apply an appropriate tension to the upholstery by making the upholstery good.
[0042]
Furthermore, even if the movable support part is provided with a holding part that holds a part of the tension fabric in the thickness direction and supports it, the necessary amount is used with the tension tension in the same manner as in each configuration described above. It can be extended to a position.
[0043]
In addition, if the upholstery is particularly stretchable, attach the use end of the upholstery to the fixed support and attach the non-use end to the movable support so that the upholstery is in tension. The size of the effective support area can be easily adjusted.
[0044]
In particular, if the movable support portion and the fixed support portion are fitted in a telescope shape, it is possible to realize a compact and good appearance and operation.
[0045]
When the furniture having the above-described configuration is a chair, the fixed support portion in which the movable support portion is set on the lower end portion side of the backrest portion as the backrest surface of the backrest portion of the chair main body that is the furniture body. By providing on the upper end side, the vertical size of the effective support area of the backrest surface can be easily matched to the physique of the user, so that the chair can be extremely useful.
[0046]
Further, when the furniture is a bed, if the upholstery is to constitute the upper surface side of the bed main body, which is the furniture main body, for example, a fixed support portion is provided at the portion of the bed main body corresponding to the user's head and the foot. By providing a movable support portion at a position corresponding to the above, a useful bed can be configured in which the dimensions of the upper surface of the bed main body can be easily changed according to the height of the user.
[Brief description of the drawings]
FIG. 1 is a side view showing a first embodiment in which furniture of the present invention is applied to a chair.
FIG. 2 is a side view illustrating the operation by enlarging the main part of the embodiment.
FIG. 3 is a side view showing another modification example of the embodiment corresponding to FIG. 2;
FIG. 4 is a side view showing still another modification example of the embodiment corresponding to FIG.
FIG. 5 is a side view showing a second embodiment in which the furniture of the present invention is applied to a chair.
[Explanation of symbols]
A1, A4 ... Furniture (chair)
X1, X2, X3, X4 ... effective support region Y ... clamping part Z1, Z4 ... support part 1 ... tension 1a ... use end 1b ... counter use end 2 ... fixed support part 3 ... movable support part 240 ... traction tool 340 ... Elastic member (spring)

Claims (5)

The furniture body, and a tension fabric that is supported by receiving a user's load on at least the surface side of the furniture body, and a support portion that is provided on the furniture body and supports tension in the tension fabric,
The support part is composed of a fixed support part provided by fixing the upper end and lower end part of the upholstery to the furniture body, and a movable support part provided on the furniture body so as to be movable relative to the fixed support part. The stretched fabric is supported in a state where tension is applied between the fixed support portion and the movable support portion,
By changing the support position of the upholstery by the movable support portion, the size of the effective support area that can substantially support the user's load on the upholstery can be changed. Furniture. The furniture according to claim 1, wherein the movable support portion includes a holding portion that holds and supports a part of the stretched fabric in the thickness direction . The furniture according to claim 2, wherein the sandwiching portion includes a pair of rollers that can rotate around a horizontal support shaft, and the pair of rollers sandwiches the tension in the thickness direction . The furniture body is a chair body for seating the user, the upholstery constitutes the front side of the back part of the chair body, and the movable support part is set on the upper end side of the back part The furniture according to claim 2 or 3 . The furniture according to claim 1, 2, 3, or 4, wherein the furniture main body is a bed main body for lying down on the user, and the upholstery constitutes the upper surface side of the bed main body .

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