JP6475659B2 - Chair and assembly including the same - Google Patents

Description

  The present invention relates to a chair provided with a pedestal on a backrest and an assembly including the chair.

  Conventionally, a chair provided with an attachment member for attaching a cushion or the like to the backrest has been proposed. For example, in the chair of Patent Document 1 below, a mounting member is attached to the backrest portion. The attachment member is provided with a locking tool for attaching a cushion or the like. By attaching the cushion to the locking tool, the cushion is held at a predetermined height of the backrest portion.

JP 2003-169836 A

  However, in the said patent document 1, since the locking tool was being fixed to the predetermined position, there existed a problem that the position of the cushion with respect to a backrest part could not be adjusted freely.

  The present invention has been devised in view of the actual situation as described above, and has as its main object to provide a chair and an assembly including the chair to which a cushion or the like can be attached at an arbitrary height of the backrest portion. Yes.

  The present invention is a chair having a seat surface portion and a backrest portion that extends upward from the seat surface portion, and the backrest portion is provided with a pedestal that is movable in the vertical direction along the backrest portion. It is characterized by being.

  In the chair according to the present invention, it is preferable that the pedestal is detachably provided on the backrest portion.

  In the chair according to the present invention, it is desirable that the backrest portion has the same width from the seat surface portion to the upper end of the backrest portion.

  In the chair according to the present invention, it is desirable that the width of the pedestal is substantially equal to the width of the backrest portion.

  In the chair according to the present invention, the pedestal includes a support part that protrudes from the backrest part toward the front of the seated user, and a base part for fixing the height from the seating surface part at an arbitrary position. It is desirable to include.

  In the chair according to the present invention, it is preferable that a guide portion through which the backrest portion is inserted is formed in the base portion.

  Preferably, the assembly includes the chair described above and a cushion attached to the pedestal.

  In the assembly according to the present invention, it is preferable that the pedestal has a fixing mechanism in which a height from the seating surface portion is fixed at an arbitrary position by attaching the cushion to the pedestal.

  In the assembly according to the present invention, it is desirable that the cushion has a massage function.

  In the present invention, the backrest is provided with a pedestal that is movable in the vertical direction along the backrest. Such a pedestal can be attached to a desired article such as a cushion and can be freely moved to any position of the backrest. Therefore, the chair of the present invention can easily adjust the height from the seat surface portion such as a cushion supported by the pedestal.

It is a perspective view which shows one Embodiment of the chair of this invention. It is a side view of the chair of FIG. It is a front view of the chair of FIG. It is a perspective view of a base. It is a top view of a base. It is a side view of a base. It is a perspective view of the assembly containing a chair and a cushion. It is sectional drawing of a fixing mechanism. It is a side view of the assembly which moved the position of the base.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
The perspective view of the chair 1 of this embodiment is shown by FIG. As shown in FIG. 1, the chair 1 of the present embodiment includes a leg portion 2 installed on a floor surface F (not shown), a seat surface portion 3 that supports a user's buttocks, and a rear bb of the seat surface portion 3. And a backrest portion 4 extending upward from the side.

  In the present specification, as indicated by an arrow a, a direction perpendicular to the floor surface F is defined as a vertical direction a, and as indicated by an arrow b, the direction is perpendicular to the vertical direction a, and the user has a backrest portion. The front side and the back side of the user (hereinafter referred to as “sitting user”) when seated so that his / her back rests on 4 are referred to as the front-rear direction b. Here, in the front-rear direction b, the back portion 4 side of the seat surface portion 3, that is, the back side of the seated user is the rear bb, and the opposite side is the front side of the seated user. Further, as shown by an arrow c, the left and right sides of the seated user in the direction orthogonal to the up and down direction a and the front and back direction b are defined as the left and right direction c. Furthermore, let the length in the left-right direction c be a width.

  The leg part 2 of this embodiment has two front leg parts 2A on the front bf, and one rear leg part 2B extending continuously from the backrest part 4 on the rear bb. Two rear leg portions 2B may be provided.

  The seat surface portion 3 of the present embodiment has a substantially rectangular shape. For example, the width of the seat surface portion 3 is larger on the front bf side than on the rear bb side. In addition, the shape of the seat surface portion 3 is not limited to a rectangular shape, and may be, for example, a triangular shape or a circular shape.

  FIG. 2 shows a side view of the chair 1. As shown in FIG. 2, the seat surface portion 3 is preferably inclined such that the front bf side is positioned higher than the rear bb side. Such a seating surface part 3 can be seated stably by the user.

  FIG. 3 shows a front view of the chair 1. As shown in FIG. 3, the backrest portion 4 of the present embodiment has the same width W1 from the seat surface portion 3 to the upper end 4 a of the backrest portion 4. It is desirable that the backrest part 4 extends upward so that the upper end 4a thereof is positioned beyond the user's head. Such a backrest part 4 can move the base 5 from the vicinity of the user's waist to the vicinity of the head, as will be described later.

  As shown in FIGS. 1 and 2, the backrest portion 4 includes, for example, a first backrest portion 4A extending upward from the seat surface portion 3, and a second backrest portion 4B inclined from the first backrest portion 4A to the rear bb side. The third backrest portion 4C extends from the second backrest portion 4B to the upper end 4a. The first backrest portion 4A and the third backrest portion 4C are preferably configured substantially in parallel. Such a backrest part 4 can move the base 5 along the back of the user, as will be described later. In addition, the backrest part 4 may be formed in linear form from the seat surface part 3 to the upper end 4a.

  The chair 1 of this embodiment is provided with a pedestal 5 that is movable in the vertical direction a along the backrest portion 4 on the front bf side (that is, the seat surface portion 3 side) of the backrest portion 4. The base 5 is attached from the upper end 4a side of the backrest part 4, for example, and is provided in the backrest part 4 so that attachment or detachment is possible. Such a pedestal 5 can be attached to a desired article such as a cushion 10 (shown in FIG. 7) and can be freely moved to any position of the backrest 4.

  As shown in FIG. 3, the width W <b> 2 of the base 5 is preferably substantially equal to the width W <b> 1 of the backrest portion 4. Such a pedestal 5 can be configured compactly and can support a desired article such as a cushion 10 (shown in FIG. 7) in a stable state. The width W2 of the pedestal 5 may be different from the width W1 of the backrest portion 4.

  4 is a perspective view of the pedestal 5, and FIG. 5 is a plan view of the pedestal 5. As shown in FIGS. 4 and 5, the pedestal 5 of the present embodiment has a support portion 6 that supports a desired article and a backrest portion 4 inserted therethrough and fixes the pedestal 5 at an arbitrary position of the backrest portion 4. Base 7.

  The support portion 6 of the present embodiment protrudes from the backrest portion 4 toward the front bf, and a desired article can be placed on the upper surface thereof. The support part 6 includes, for example, a pair of first support parts 6A in the left-right direction c and a second support part 6B that couples both the first support parts 6A.

  FIG. 6 shows a side view of the base 5. As shown in FIG. 6, the first support portion 6A has, for example, a shape in which the upper surface is curved in an arc shape. It is desirable that the upper surface positions of the first support portion 6A on the front bf side and the rear bb side are higher than the upper surface position of the center portion of the first support portion 6A. Such a first support 6A can support a desired article in a stable state.

  As shown in FIG. 5, the second support portion 6 </ b> B has, for example, a shape curved in an arc shape so that the center portion is recessed rearward. Such a second support portion 6B rarely touches the user and does not cause the user to feel uncomfortable.

  The base portion 7 of the present embodiment includes, for example, a pair of first base portions 7A and a second base portion 7B connecting the first base portions 7A in the left-right direction c. Each first base portion 7A is formed in a substantially U shape in plan view. The width W3 of the first base portion 7A is preferably equal to the width W4 of the first support portion 6A. It is desirable that the first base portion 7A and the first support portion 6A are formed continuously.

  As shown in FIG. 4, for example, a groove-shaped guide portion 8 extending in the vertical direction “a” through which the backrest portion 4 is movably inserted is formed in the first base portion 7A. The guide portion 8 has an upper opening 8A on the upper side and a lower opening 8B on the lower side. Such a guide portion 8 can be easily attached to the backrest portion 4 and, as will be described later, the height from the seat surface portion 3 (shown in FIG. 1) of the pedestal 5 can be easily adjusted to an arbitrary position. can do.

  For example, the second base portion 7B is provided with a plurality of ribs 9 extending in the vertical direction a. Such a second base portion 7B can achieve both strength and weight reduction. Moreover, the rib 9 can reduce the contact area of the backrest part 4 and the 2nd base 7B. For this reason, as will be described later, the pedestal 5 can be easily moved with respect to the backrest portion 4. The pedestal 5 having the support portion 6 and the base portion 7 has a simple structure and is less likely to fail or break.

  FIG. 7 shows a perspective view of the assembly 11 including the chair 1 and the cushion 10. As shown in FIG. 7, the cushion 10 of this embodiment is attached on the support portion 6 of the base 5. The pedestal 5 has a fixing mechanism 12 in which the height from the seat surface portion 3 is fixed at an arbitrary position by attaching a cushion 10 to the pedestal 5, for example. Such a chair 1 can easily adjust the height from the seat surface portion 3 such as the cushion 10 supported by the base 5.

  FIG. 8 is a cross-sectional view of the fixing mechanism 12. As shown in FIGS. 4 and 8, the fixing mechanism 12 of the present embodiment is configured by a guide portion 8. The fixing mechanism 12 is preferably composed of an edge 8Ab on the rear bb side of the upper opening 8A and an edge 8Bf on the front bf side of the lower opening 8B. It is desirable that an edge 8Ab on the rear bb side of the upper opening 8A and an edge 8Bf on the front bf side of the lower opening 8B are respectively formed so as to protrude at an acute angle toward the backrest portion 4. In the present embodiment, the position of the pedestal 5 is fixed using the fixing mechanism 12 and the frictional force between the backrest portion 4.

  That is, a downward force f acts on the support portion 6 by attaching the cushion 10 to the pedestal 5. At this time, a moment that rotates around the base portion 7 acts on the base 5. Then, the guide part 8 of the base 5 is inclined with respect to the backrest part 4. For this reason, the pedestal 5 has a large frictional force between the edge 8Ab on the rear bb side of the upper opening 8A of the base 7 and the edge 8Bf on the front bf side of the lower opening 8B, and the backrest part 4, and the vertical direction a The position of can be fixed.

  On the other hand, when the guide portion 8 of the pedestal 5 and the backrest portion 4 are not in contact with each other, the pedestal 5 is movable in the vertical direction a. For this reason, by removing the cushion 10 from the pedestal 5, the position of the pedestal 5 in the vertical direction a is changed so that the cushion 10 becomes a predetermined height, and the height is fixed by attaching the cushion 10 to the pedestal 5. can do. Since the fixing mechanism 12 of the present embodiment has the above-described function, the height from the seat surface portion 3 of the base 5 can be easily adjusted steplessly to an arbitrary position.

  Note that the fixing mechanism 12 may fix the pedestal 5 in a stepped manner using, for example, an uneven structure. Such a fixing mechanism 12 can more reliably fix the position of the pedestal 5 in the vertical direction a.

  FIG. 9 shows a side view of the assembly 11 in which the position of the base 5 is moved. As shown in FIG. 9, the pedestal 5 can be lowered to a position in contact with the seat surface portion 3 of the chair 1. The chair 1 of this embodiment can make the cushion 10 contact | abut to a user's waist vicinity by lowering the base 5 to this position. Moreover, this chair 1 can be used as a normal chair, without removing the base 5, even if the cushion 10 is not attached, for example, by lowering the base 5 to this position. In addition, although illustration is abbreviate | omitted, this chair 1 can contact the cushion 10 to a user's head vicinity by moving the base 5 to upper end 4a vicinity of the backrest part 4. FIG.

  As shown in FIGS. 7 and 9, the cushion 10 preferably has a massage mechanism. Such a cushion 10 can massage any part of the user. In such an assembly 11, the height from the seat surface portion 3 of the base 5 can be easily adjusted, so that the part to be massaged can be easily adjusted.

  In addition, although the base 5 of the above-mentioned embodiment was used in order to attach the cushion 10, the support part 6 can also be attached to the backrest part 4 toward the back bb of the backrest part 4, for example. At this time, for example, a hanger, an umbrella, or the like is applied to the second support portion 6B, and the downward force f acts to fix the height of the second support portion 6B.

  As mentioned above, although especially preferable embodiment of this invention was explained in full detail, this invention is not limited to the above-mentioned embodiment, It can deform | transform and implement in a various aspect.

1 chair 3 seat surface 4 backrest 5 pedestal

Claims (7)

A chair having a seat surface portion and a backrest portion extending upward from the seat surface portion,
The backrest is provided with a pedestal that is movable in the vertical direction along the backrest,
The backrest part has the same width from the seat surface part to the upper end of the backrest part,
The width of the pedestal is approximately equal to the width of the backrest portion.   The chair according to claim 1, wherein the pedestal is detachably provided on the backrest portion.   The said base includes the support part which protrudes toward the front of the user who seated from the said backrest part, and the base part for fixing the height from the said seat surface part in arbitrary positions. The listed chair.   The chair according to claim 3, wherein a guide portion through which the backrest portion is inserted is formed in the base portion.   An assembly comprising the chair according to claim 1 and a cushion attached to the pedestal.   The assembly according to claim 5, wherein the pedestal has a fixing mechanism in which a height from the seating surface portion is fixed at an arbitrary position by attaching the cushion to the pedestal.   The assembly according to claim 5 or 6, wherein the cushion has a massage function.

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