JP2012110668A - Chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair, which can be nested fore and aft, has an efficient and stable support configuration resulting from a high designability and a configuration of few members, and can be easily recognized at a glance that the chair can be nested, and in which the way of separating chairs can be easily recognized when separating the chairs.SOLUTION: The chair includes: a back rest; a seat; and a leg part; wherein the seat is made freely rotatable from a horizontal state to a vertical state and a plurality of chairs can be nested fore and aft, with the seats vertically raised. The chair has a horizontal bar with which the seat is supported in a horizontal state by the contact of the bottom face of the seat. The chair is characterized in that: in a leg part, a right and left pair of front legs and a right and left pair of rear legs extend at an incline in the right and left direction from the horizontal bar; and when seen from the front, the right and left pair of front legs is positioned more outward or more inward than the right and left pair of rear legs.

Description

  The present invention relates to a chair having a back and a seat, which can be overlapped (nested) in the front-rear direction with the seat flipped upward.

  2. Description of the Related Art Conventionally, a chair having a back and a seat, which can be nested in the front-rear direction in a state where the seat is flipped up, is known. For example, the chair described in Patent Document 1 is a leg portion having a gate-shaped front and rear legs on the left and right sides in a side view, and a horizontal horizontal ridge constructed between the left and right legs. Further, it is configured to extend upward and attach a back, and to pivotally support the rear end of the seat so as to be rotatable. When the seat is used, the seat is horizontally rotated and the lower surface of the seat is received by the horizontal rod.

In such a chair, in order to form the leg member into a gate shape, a process of bending the leg pipe largely in a substantially right angle direction is required, so that the molding process is complicated and expensive. In particular, there is a drawback that the pipe length used for the gate-shaped leg member is long and a large amount of pipe material is used. Furthermore, when the seat is pivoted in the vertical direction and nesting is performed, the entire leg portion is exposed in a state of protruding greatly forward, so that there is a disadvantage that it does not look good.

  On the other hand, the configuration of the chair that can be stacked in the front-rear direction described in Patent Document 2 is tilted so that the front legs and the rear legs cross each other in a side view, and the front legs are further extended upward, and the backrest is placed above the front legs. Is attached, the rear leg is extended upward, and an armrest is formed above the rear leg. In this case, a horizontal rod is provided at the intersection of the left and right front legs and the rear leg and the seat is pivotally supported, and the support of the seat and the pivot portion are performed by one horizontal rod. And a stopper mechanism for the rotating mechanism to stop the seat horizontally.

  In addition, each of the above-described configurations has a problem that the leg portion of the chair hangs down from the left and right side surfaces of the seat, so that the exposure of the leg portion is large, and an object is easily hit by a leg rod and is easily damaged. In addition, since the difference in appearance from a normal pipe chair is small, it is difficult to feel the novelty of the design, and in particular, it is difficult for the user to recognize that the seat is pivotable and can be nested. was there.

  On the other hand, a chair capable of nesting is disclosed, which is composed of legs provided radially from the lower end of a vertical column. For example, in the chair shown in Patent Document 3, five legs are evenly provided at equal angles radially from the lower end of a support column that is erected vertically from below the seat, and between the two rear legs, It is the structure which inserts the center front leg among the three front legs in the chair. In this case, an odd number of legs are provided at an equal angle, the positions of the legs are made different between the front and back of the chair, and one leg is inserted between a plurality of legs, and the legs are overlapped in the front-rear direction. . For this reason, this configuration has the disadvantage that the legs collide with each other and it is difficult to superimpose them.

In addition, it is difficult to recognize that the chair can be nested, and even if the chairs are stacked in the front-rear direction, the legs are intertwined in a complex manner, so the chair can be pulled out sideways even a little. If they are displaced, there is a problem that the legs collide with each other and cannot be separated well.

  Furthermore, the configuration of Patent Document 4 includes a chair in the rear by having horizontal legs radially from the lower end of a vertical support column standing below the seat and changing the height of the front and rear legs. The front leg is stored below the rear leg of the front chair. In this case, the leg structure is provided horizontally and radially from the lower end of the support column. Furthermore, since the support column part is rotatable, it is necessary to return the leg to the normal position in order to overlap the front and rear chairs.

  In any case, in the above document, the legs are provided radially from the outer periphery of the support column provided perpendicularly to the lower surface of the seat, and the legs are grounded via the support column, so the stability at the time of sitting is low, It is necessary to support the column with a wide leg. Moreover, since the leg of the other chair is inserted into the gaps in the plurality of legs extending radially from the support column, there is a drawback that nesting is difficult. In addition, it is difficult to recognize that the chair can be nested by the appearance of the legs, especially when the chair legs are slightly displaced laterally with the front and back chairs overlapped, The legs collided and the front legs of the back chair got stuck under the back legs of the front chair, so it was necessary to lift the back chair to pull the chair apart. .

Japanese Patent Laid-Open No. 2001-128776 Japanese Patent Laid-Open No. 2005-073788 Japanese Patent No. 3482901 Japanese Patent No. 3730119

The present invention provides a chair that can be nested in the front-rear direction, has a high design, and has an efficient and stable support structure with a small number of member configurations. It is an object of the present invention to provide a chair that can be recognized and can easily recognize a separation method even when the chair is pulled apart.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present invention is a chair having a back, a seat, and legs, the seat being rotatable from a horizontal state to a vertical state, and the seat being vertical. In a chair capable of stacking a plurality of the chairs in the front-rear direction in a state of being flipped up to a state, the chair has a horizontal rod that abuts the lower surface of the seat and holds the seat in a horizontal state. The pair of left and right front legs and rear legs in the leg portion are inclined and extended in the left-right direction, and the pair of left and right front legs are positioned outside or inside the pair of left and right rear legs in front view. It is a chair.

According to this configuration, the pair of left and right front legs and rear legs in the leg portion are inclined and extended in the left-right direction from a horizontal rod, and the pair of left and right front legs is a pair of left and right front views when viewed from the front. It is possible to provide a nestable chair with a simple configuration located outside or inside the rear legs. In particular, since the leg portion extends radially from a horizontal rod that holds the seat, it is possible to provide a chair having both high stability and design. In addition, when the seat is flipped up in a vertical state, the leg portion does not protrude greatly forward, and thus it is possible to achieve high designability and safety. In particular, even when a plurality of chairs are overlapped in the front-rear direction, the front legs and the rear legs are neatly aligned, so the appearance is good, and the user can easily recognize the direction in which the chairs overlap closely in the front-rear direction. effective.

The invention according to claim 2 is characterized in that, in the chair according to claim 1, a pair of left and right front legs or rear legs in the leg portion are extended from substantially the center of the horizontal rod. According to the said structure, since a front leg and a rear leg are provided radially from right under a seat and center vicinity, it is possible to provide the chair which has still higher designability and stability.

The invention according to claim 3 is the chair according to claim 1 or 2, wherein the inclination angle of the front leg in the left-right direction and the inclination angle of the rear leg in the left-right direction are determined by the rear leg. The tilt angle is large. According to the said structure, it is possible to provide the chair which can superimpose a some chair by the simple structure which makes the inclination angle of a front leg and a rear leg differ.

  According to a fourth aspect of the present invention, in the chair according to the first or second aspect, the inclination angle of the front leg in the left-right direction and the inclination angle of the rear leg in the left-right direction are determined by the rear leg. The tilt angle is large. According to the said structure, since the opening of a front leg is larger than the opening of a rear leg, there exists an effect which can take the space of a leg of a seated person wide. Therefore, even if the seated person bends his / her leg and the foot enters the lower part of the seat, the person does not hit the leg of the chair.

According to a fifth aspect of the present invention, in the chair according to any one of the first to fourth aspects, a left and right heel extends from the left and right of the horizontal heel, the back is attached to the left and right heel, and the seat is It is characterized in that it can be pivoted. According to the said structure, it is possible to support a backrest and a chair on the right and left of the horizontal heel in a leg part, and it is possible to support and arrange each member efficiently with few members.

The invention according to claim 6 is the chair according to any one of claims 1 to 5, characterized in that a contact member is provided on the rear leg or the front leg so that a leg of another chair that is overlapped comes into contact. To do. According to this configuration, it is possible to easily adjust the distance between the front and rear chairs with a simple configuration in which the contact member is formed on the rear leg or the front leg. Furthermore, it is possible to prevent the leg rods of a plurality of chairs from coming into direct contact with each other and prevent the legs from being damaged. In particular, the rear legs in the front chair and the front legs in the rear chair are intertwined. It is possible to easily and reliably pull the chairs apart.

  As an example in which the chair 1 of the present invention is suitably used, as shown in FIG. 1, the chair 1 having a back 10, a seat 30 and an armrest 40, a pair of left and right front legs 21 and a pair of left and right rear legs 22 This is a chair 1 having a total of four legs. In particular, the chair 1 is a chair 1 that can be overlapped (nested) in the front-rear direction in a state where a seat 30 is flipped upward, which will be described later. In particular, since the front legs 21 and the rear legs 22 are provided radially from directly below the seat 30, even when the seat is flipped up in a vertical state during nesting, the legs do not protrude greatly forward, and the design is high. It is possible to have sex.

Below, the structure of the chair 1 of this invention is explained in full detail.
As shown in FIG. 2, the chair 1 of the present invention includes a front leg 21 that is inclined forward and left and right from the approximate center of the horizontal rod 23 in the leg portion 20 that supports the seat 30 and the back 10, The caster 28 is attached to the lower end of each leg 21, 22 via a leg end tool 26. In particular, a contact member 29 that protrudes inward is attached to the inside of the rear leg 22, and when a plurality of chairs, which will be described later, are stacked in the front-rear direction, the front leg 21 of the rear chair is connected to the rear leg. Since it abuts against the abutting member 29 provided at 22, it is possible to easily position the front and rear chairs.

On the left and right sides of the horizontal rod 23 in the leg portion 20, there are left and right rods 24 extending rearward, and plate-like attachment members 25 are formed at the ends of the left and right rods 24. The back 10 and the armrest 40 are integrally attached to the outside of the attachment member 25, and the seat 30 is pivotally supported in the vertical direction to the inside of the attachment member 25.

  That is, a plate-like attachment portion 12 extends downward from the left and right sides of the spine 10, and concave portions 13 are respectively formed on the inner surface and the outer surface of the attachment portion 12. On the other hand, below the armrest 40, a convex portion 42 is formed on the inner surface and a concave portion 43 is formed on the outer surface. And the said convex part 42 of the armrest 40 is attached to the said recessed part 13 in the outer surface of the said attaching part 12 in the back | dorsal 10, and also the said recessed part 13 in the inner surface of the said attaching part 12 in the said back | dorsal 10 is attached to the left and right side hooks in the leg part. It attaches to the attachment member 25 formed in this, and is the structure which fixes these to the attachment member 25 integrally with a bis | screw etc. Further, the cover member 45 is attached to the concave portion 43 formed on the outer surface of the armrest 40 to cover the parts such as screws.

  The seat 30 includes a seat surface 31 and a seat plate 32 on which the seat surface 31 is placed, and has a bearing 34 projecting upward on the left and right rear sides of the seat plate 32. Then, the bearing 34 of the seat plate 32 in the seat 30 is pivotally supported in the shaft hole formed in the mounting plate 25 of the left and right rods 24, and as shown in FIG. It is possible to rotate between a state and a vertical state.

That is, the seat 30 is rotated upward from the horizontal state, and the seat 30 is in the vertical state at the position where the seat 30 and the back 10 face each other, and on the other hand, the seat 30 is rotated downward from the vertical state. The seat 30 is in a horizontal state at a position where the recess 33 of the seat plate 32 on the lower surface of the seat 30 is placed on the horizontal rod 23 of the leg portion 20. And the chair 1 of this invention is the structure which piles up the some chair 1 in the front-back direction, as shown in FIG. 4, in the state which raised the seat 30 to the perpendicular state.

Next, nesting in the front-rear direction in the chair 1 of the present invention will be described in detail.
The chair 1 of the present invention has a configuration in which the front leg 21 is positioned inside the rear leg 22 as shown in FIG. That is, as shown in FIG. 5 (b), a pair of left and right front legs 21 in the leg portion 20 are extended from the vicinity of the center of the horizontal rod 23 to the front and left and right, while the pair of left and right rear legs 22 are The front leg 21 is configured to extend from the left and right outer sides to the rear and the left and right directions. In particular, the inclination angle α of the front leg 21 in the left-right direction and the inclination angle β of the rear leg 22 in the left-right direction are such that the inclination angle α of the front leg 21 with respect to the horizontal heel is large. And when the inclination | tilt angle (alpha) of the front leg 21 is larger than the inclination | tilt angle (beta) of the rear leg 22, the opening of the rear leg 22 becomes a structure large.

Thereby, as shown in FIG. 6, the front leg 21 in the leg part 20 enters between the rear legs in the front chair, and the plurality of chairs 1 can be nested in the front-rear direction.
In addition, the pair of left and right rear legs 22 has an abutting member 29 protruding inward at the upper side and the inner side, and when a plurality of chairs are stacked, the front legs 21 of the chairs are rearwardly moved forward. In order to contact the contact member 29 of the rear leg 22 in this chair, the distance between the front and rear chairs can be adjusted.

  That is, as shown in FIG. 7, when the plurality of chairs 1 are overlapped in the front-rear direction, the contact member 29 comes into contact with the upper portion of the front leg 21 in the rear chair, and the plurality of chairs 1 in the front-rear direction. It is possible to determine the interval between the chairs when the chairs are overlapped. As shown in FIG. 8, when the plurality of chairs 1 are nested, the contact member 29 of the rear leg 22 of the foremost chair 1 is used. In addition, the front legs 21 of the central chair 1 come into contact with each other, the distance between the chairs is fixed, and the front legs 21 of the rearmost chair 1 come into contact with the contact members 29 of the rear legs 22 of the central chair 1. Thus, these intervals are determined.

Thereby, it is possible to easily adjust the distance between the front and rear chairs, and further, there is an effect of preventing the leg rods from coming into direct contact with each other and preventing the legs from being damaged. Furthermore, it is possible to prevent the rear legs 22 of the front chair 1 and the front legs 21 of the rear chair 1 from being entangled, and the front and rear chairs 1 can be easily and reliably separated. is there. Furthermore, because the front and back chairs are arranged in a regular manner at a fixed interval, there is an effect that the appearance when nesting is beautiful.

  In particular, the chair 1 of the present invention is configured such that the lower surface of the seat 30 is received by the horizontal rod 23 of the leg portion 20 and the front and rear legs 21 and 22 are linearly provided with an angle β of approximately 45 °. It is possible to distribute the load applied to the ridges 23 in a well-balanced manner in the front-rear direction and the left-right direction. Furthermore, by using the straight legs 21 and 22, it is possible to mold the leg portion 20 at low cost without requiring a complicated bending process.

  As shown in FIG. 9, the chair 1 of the present invention also has a good appearance because the front legs 21, 21 and the rear legs 22, 22 are neatly aligned even when a plurality of chairs are overlapped in the front-rear direction. Furthermore, there is an effect that the user can easily recognize the pulling direction of the chair that overlaps closely in the front-rear direction.

In the above example, the example in which the front leg 21 is positioned inside the rear leg 22 has been shown. However, the present invention is not limited to this, and the rear leg 22 is positioned inside the front leg 21 as shown in FIG. In other words, the opening of the front leg 21 may be large. In any case, any leg configuration may be adopted as long as it is a leg configuration capable of continuously superimposing a plurality of chairs in the front-rear direction.

  In this case, the inclination angle α in the left-right direction of the front legs 21, 22 and the inclination angle β in the left-right direction of the rear legs 23, 24 are large, and the inclination angle α of the front legs 21, 22 is large. Since the width X of 21 and 22 is wider than the width Y of the rear legs 23 and 24 (X> Y), there is an effect that a space for the feet of the seated person can be widened.

  Therefore, even if the seated person bends his / her foot and the foot enters the lower side of the seat 30, the seated person's foot does not easily hit the chair leg 20. Also in this case, as shown in FIG. 11, the rear legs 23 and 24 of the chair 1 to be overlapped enter between the front legs 21 and 22 of the chair 1 so that a plurality of chairs can be closely stacked. is there.

Furthermore, although the rear leg 22 extended from the horizontal rod 23 of the leg part 20 showed the example extended from right and left (outside) of the front leg 21, not only this but the rear leg 22 immediately after the front leg 21 is shown. The tilt angle of the front leg 21 in the left-right direction may be different from the tilt angle of the rear leg 22 in the left-right direction, so that the tilt angle of either the rear leg 22 or the front leg 21 is different. By increasing the size of the rear leg, the rear leg or the front leg may be located outside the leg part in the front view.

  As described above, the chair 1 of the present invention is a chair 1 that can be stacked in the front-rear direction, and can provide the chair 1 that has an efficient and stable support configuration with a high design and a small number of member configurations. It is. In particular, the front leg 21 and the rear leg 22 in the leg portion 20 extend radially from the substantially center of the horizontal rod 23 to the lower side, so that the seat 30 can be effectively supported with a small number of members. The members such as the armrests 40 as well as the back 10 and the seat 30 can be efficiently supported on the left and right of the horizontal rod 23. In addition, since the leg members 20 extend radially from the most heavily loaded horizontal rod 23, the stability at the time of sitting is high, and the chair 1 can be moved smoothly in the sitting state.

It is a perspective view which shows the chair of this invention. It is an exploded view which shows a chair. It is a perspective view which shows an example of the usage type of a chair. It is a perspective view which shows an example of the usage type of a chair. It is (a) front view (b) front view which shows the chair of this invention. It is a substantially bottom view which shows an example of the usage type of a chair. It is a front view which shows an example of the usage type of a chair. It is a side view which shows an example of the usage type of a chair. It is a schematic front view which shows an example of the usage type of a chair. It is a perspective view which shows another example of the chair of this invention. It is a perspective view which shows an example of the usage type of a chair.

1 Chair 10 Back (back)
11 Back plate 12 Mounting portion 13 Recess 20 Leg portion 21 Front leg 22 Rear leg 23 Horizontal rod 24 Left and right rod 25 Mounting member 26 Leg end tool 28 Caster 29 Contact member 30 Seat 31 Seat surface 32 Seat plate 34 Shaft hole 40 Armrest 45 Cover

Claims (6)

A chair having a back, a seat and legs, wherein the seat is rotatable from a horizontal state to a vertical state, and the plurality of chairs are overlapped in the front-rear direction in a state where the seat is flipped up to a vertical state In a chair that can
A horizontal rod that holds the seat in a horizontal state by abutting the lower surface of the seat, extending from the horizontal rod a pair of left and right front legs and rear legs inclined in the left-right direction; and A chair, wherein the pair of left and right front legs are located outside or inside the pair of left and right rear legs in a front view. The chair according to claim 1, wherein a pair of left and right front legs or rear legs in the leg portion are extended from a substantially center of the horizontal rod. The chair according to claim 1 or 2, wherein an inclination angle of the front leg in the left-right direction and an inclination angle of the rear leg in the left-right direction are large. The chair according to claim 1 or 2, wherein the inclination angle of the front leg in the left-right direction and the inclination angle of the rear leg in the left-right direction are large. The chair according to any one of claims 1 to 4, wherein left and right saddles are extended from the left and right sides of the horizontal saddle, the back is attached to the left and right saddles, and the seat is rotatably attached. The chair according to any one of claims 1 to 5, wherein the rear leg or the front leg is provided with an abutting member against which a leg of another superimposed chair abuts.

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