JPS61222414A - Seat apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a seating device, and more specifically, it is equipped with a seating portion and a knee rest, and is configured to correct posture and prevent fatigue even during long hours of work. This invention relates to a seating device.

BACKGROUND ART As shown in FIG. 1O, a seating device IG such as a variety of chairs generally has a seat part and a backrest part, and the user places his back on the R-rest part and bends his knees from the seat part. The structure allows the toes to touch the floor.

When such a seating device is used, the user's back curves along the backrest, causing the user's upper body to curve unnaturally, putting pressure on the spinal cord and internal organs, leading to a feeling of fatigue.

To overcome this inconvenience, the seating device uses a cushioning material that allows the body to sink into it, or conversely, a flat material such as a plate, but the overall structure of the seating device is different when viewed from the side. The fundamental point of being L-shaped remains unchanged, and the fundamental disadvantages mentioned above cannot be eliminated.

Therefore, as shown in Fig. 5 (5), the structure of the seating device was fundamentally changed, and it was made up of a seating section 2 on which the upper body sits, and a knee rest section 3 placed opposite to this. Approximately 15 to 4
A seating device 1111A has been proposed that allows the user to sit in a stable state by supporting the user's knee with the knee rest 3 and keeping the seat straight.

This sitting part [IA] straightens the spinal cord, corrects the posture, and removes pressure on the spinal cord and internal organs, and can significantly reduce the feeling of fatigue even when sitting for a long time.

Problems to be Solved by the Invention However, the conventional oak seat [IA] has a fixed seating part and knee rest, and is constructed based on a general physique. There was a problem in that the trough dimensions did not form knots depending on the weight level or the level of fullness, making it impossible to fully demonstrate its excellent functions. In particular, the physique of young people in recent years has become slimmer, and the length of the femur of the leg has increased significantly, and its size is approximately 40 cm or more in general.
There are large individual differences in the range of fiOcm. Therefore,
With only one section in the 111Iflk direction of the seating part provided in the conventional seating device, the limit was about 1Oz at most, so there was a problem that it could not be adjusted to suit the physique of each person.

In addition, in the conventional seating part ff1lA of this type, it is not possible to stabilize the heel of the foot, which causes the foot to move here and there, making it very unstable physically and mentally, making it difficult to calm down. There is.

Means for Solving the Problems In order to solve these conventional problems, the specific invention is as follows:
In a seating device consisting of a seating part inclined forward at a predetermined angle, a knee rest disposed below the front of the seating part to face the seating part, and legs supporting these parts, the legs The part includes a bottom member and a pair of support members that support a seat part and a knee rest formed near both ends of the bottom member, and the length t of the bottom member can be freely adjusted. It is.

In addition, in order to solve the conventional problems in the same way as the specific invention, another invention includes a seating part that is inclined forward at a predetermined angle, and a knee pad that is disposed at the front lower part of the seating part and facing the seating part. In the seating device, the legs include a bottom member and a pair of support members formed near both ends of the bottom member to support the seating portion and the knee rest. The length of the bottom member is adjustable, and the front bottom member is provided with an adjustable sole rest for locking the heel.

Function: The specific invention having such a configuration allows the approximate length adjustment of the seat portion and the knee rest to match the length of the thigh (Figs. 1 to 3, Fig. 5(a)). ) Also, there is an effect that it is possible to finely adjust the height of the g-force of the seat and knee rests and the length of the armpits in the front and back direction (Fig. 4).

(9) In addition to the above-mentioned effect, another invention has the effect that the sole rest that locks the heel of the foot can be positioned at the t-a node.

Example Hereinafter, one embodiment of the specific invention flif: FIGS. 1 and 2.

This will be explained based on FIG. 1M3 and FIG.

A seating device 1tIB according to the present invention includes a seating portion 2 that is inclined forward at a predetermined angle, and a seating portion 2 that is located below the front of this seating portion 2.
It consists of a knee rest m3 arranged opposite to the knee rest m3, and a leg part 4 that supports these. The leg portion 4 is made of tubular steel or the like, and supports a bottom member 5 and the seat portion 2 and knee rest portion 3 formed near both ends of the bottom member 5. It consists of a support member 6 and a front support member 7. This bottom member 5 is provided with a length adjustment mechanism 8. That is, the bottom member 5 includes a rear bottom member 9 formed horizontally by bending the rear support member 6, and a front bottom member 10 formed horizontally by bending the front support member 7. . The rear bottom S member 9 has a stepped portion 9a and a diameter of m, and is slidably fitted into the front bottom member IO. The end of this front bottom member 10 has multiple threads) 10a
... is formed, and one side has an opening 11 on the outer periphery of this end.
a l, te, both ends of this opening 11 a have a grinding length of 11
A metal fitting 11 is fitted into the tubular fastener. A male screw 12 is inserted through the pair of extensions jlb and llb with a rotation stopper 12a, and a cap nut 13 is screwed into the threaded portion of the male screw 12.

The tip of the L-shaped handle 14 is inserted into the upper end of this cap nut 13, and the vertical through hole 1 for rotating the cap nut 13't-
3a is formed. This tightening is performed from the outer periphery of the metal fitting 11 to the stepped portion 9at formed on the rear bottom member 9 to the overlapping position rJIK to form the full-length resin front cover 30. An indication indicating the length is printed on the enlarged diameter portion 9b of the rear bottom member 9.

Further, on the outer periphery of the enlarged diameter portion 9b, a sole rest 15 for resting the heel of the foot is slidably fitted via a cylinder 16◇This sole rest 15 is formed in a tubular shape,
It is fixed to the cylinder 16 at right angles. A plurality of threads (16a) are formed on this cylinder 16. The cylindrical body 16 in which this sulin) 16a is formed
A fastening fitting 11 similar to that described above is fitted onto the outer periphery of the holder, and a synthetic resin cutter blade is also provided.

Further, as shown in FIG. 1, the rear support member 6 and the front support member 7 are two tubular members 6a and 6 that are slidably fitted together.
b, 7a From fist 7b, elevation adjustment mechanisms 17 and 18 for the seat portion 2 and knee rest portion 3 are attached to this connecting portion. This elevation adjustment mechanism has a structure similar to that of the length adjustment mechanism 8. Furthermore, as shown in FIGS. A fixed plate 20 is placed on the fixed support plate 19, and a cushion 2 is placed on the fixed support plate 19.
1 is fixed.

Long holes n... are formed in the front and back direction of this support plate 190,
The cushion 21, which is fixed to the fixed tentative head by means of a guide screw 23, can be slidably adjusted in the front and rear directions with respect to the support plate 19.

Note that this bottom member 5 is attached to the front and rear ends of the bottom member 50.
A horizontal rod is fixed to stabilize the seating device in a state perpendicular to the
...is provided.

The specific invention having such a mechanism allows the length 'f of the bottom member to be adjusted according to the size of the body, particularly the length of the thigh.

According to another invention, the sole rest is placed on the heel of the foot, and the position of this sole rest can also be adjusted.

Next, other embodiments of the present invention will be described based on FIGS. 6 to 9.

6 to 9 differ from the previous embodiment only in the structure of the leg portion, and the common parts will be given the same reference numerals and the explanation thereof will be omitted.

FIG. 6 shows a second embodiment, in which a pivot station perpendicular to the lower surface of the knee rest part 3 of the seating device IC9 is fixed to the intermediate part of the front support member 7 in a state inclined at a predetermined angle, This support shaft is raised and lowered (by means of a double tubular member) in the same manner as in the previous embodiment.

FIG. 7 shows the seventh embodiment of the third implementation, in which a support shaft d is fixed vertically to the lower surface of the knee rest of the seating device ID, a caster is provided at the end of the support shaft, and a caster is provided at the end of the support shaft. It is fixed to the end of the member 5.

FIG. 8 shows a fourth embodiment, in which, in the previous third embodiment, a row of support shafts is fixed also to the lower surface of the seat of the seating device 11 in the vertical direction, and the lower end thereof is attached to the bottom member 5. The bottom member 56 has a structure in which the rear end portion of the bottom member 56 is extended in a semicircular shape and its tip is fixed to the intermediate portion of the support shaft row.

FIG. 9 shows the fifth embodiment, in which only the support shaft row supporting the knee rest 3 of the seating device IF has a structure similar to that of the fourth embodiment.

Effects As is clear from the above explanation, according to this specific invention, the length of the bottom member of the leg can be adjusted freely, so it is easy to adjust to the body physique, especially the length of the thigh, which varies between individuals in about 20 countries. In addition, since the relative position of the seating part and the knee rest and the position of the feet can be adjusted, it is possible to provide a seating device that reliably fits each person's physique.

In addition, according to another invention, since the sole rest is provided in a freely adjustable manner, the heel of the foot can be rested, which also has the effect of providing mental stability.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view of the seating device according to the present invention, FIG. 2 is an exploded perspective view of the main parts, FIG. 3 is a sectional view of the main parts, and FIG. 4 is a perspective view of the seating part as seen from the back side. FIGS. 5(1) and 5(B) are action explanatory diagrams, and FIGS. 6 to 9 are perspective views showing other embodiments. FIG. 1θ is an explanatory diagram of the function of a conventional chair. 1B...'M seat device, 2... Seat part, 3... Knee rest, 4... Leg part, 5... Bottom member, 6... Rear support member, 7... Front support member, 8... Length adjustment mechanism, 9... Rear bottom member, 0... Front bottom member, 1
5... Sole rest, 17/18... Lifting adjustment mechanism.

Claims (5)

[Claims] (1) a seating part inclined forward at a predetermined angle; a knee rest disposed below the front of the seating part and facing the seating part;
A seating device comprising legs that support these, the legs comprising a bottom member and a pair of support members that support the seating portion and knee rests, each formed near both ends of the bottom member, A seating device characterized in that the bottom member is provided with a bottom member length adjustment mechanism. (2) The seating device according to claim 1, wherein the pair of support members supporting the seating portion are inclined or curved in a direction in which the knee rest and the seating portion approach each other. (3) Claim 1 or 2, characterized in that one or both of the seating part and the knee rest each attached to the support member is configured to be adjustable up and down.
Seating device as described in section. (4) The seating device according to claim 1, 2, or 3, wherein one or both of the seating portion and the knee rest are arranged so as to be slidably adjustable in the front-rear direction. . (5) a seating portion inclined forward at a predetermined angle; a knee rest disposed below the front of the seating portion and facing the seating portion;
A seating device comprising legs that support these, the legs consisting of a bottom member and a pair of support members that support the seating portion and knee rests, each formed near both ends of the bottom member, A seating device characterized in that the length of the bottom member is adjustable, and the bottom member is provided with a slidably adjustable sole rest for locking a heel.