JPH11123218A - Seat provided with massage function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically decide height of a seat back to correspond to a shoulder position of a seated person. SOLUTION: By a shoulder position detection means composed of an operation means 28, a slide mechanism control means 34, and a switch means 35, a vertically moving seat back 2 is automatically stopped at a corresponding position to shoulders of a seated person. Work of selecting height of the seat back 2 to correspond to the shoulders of the seated person is thus easy, and a constant height position can be constantly selected to the seated person.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat with a massage function for massaging a shoulder, a waist and the like of a seated person.

[0002]

2. Description of the Related Art Conventionally, a seat with a massage function has been proposed in which a seat back is provided with a massage function so as to give an appropriate vibration to a shoulder, a waist and the like of a seated person. For example, a treatment element that moves in the vertical direction is provided on the seat back, and the treatment element has a structure in which a desired part can be massaged.
No. 35926).

[0003] Also, in order to be able to perform optimal massage on shoulders having different heights depending on the physique (seat height) of the seated person,
The seat back provided with the above-described treatment element may be supported on a seat cushion via a slide mechanism, and the entire seat back may be moved up and down in accordance with the physique of the occupant. That is, it is possible to select the height of the seat back that matches the user's shoulder while moving the seat back up and down.

[0004]

However, even if the user selects the seat back height that matches his / her shoulder while moving the seat back up and down, the same seat back height is always selected each time the seat back is used. It is not always the case, and if the height of the seat back is different, the massage feeling will also change slightly.

The present invention has been made by paying attention to such a conventional technique, and provides a seat with a massage function that can automatically determine the height of a seat back that matches a shoulder position of a occupant. To provide.

[0006]

According to the first aspect of the present invention,
A seat back is supported movably up and down along a mounting angle of the slide mechanism with respect to a slide mechanism mounted on a frame of the seat cushion. And a shoulder position detecting means for stopping the seat back moving up and down at a position where the shoulder corresponding part matches the shoulder of the occupant.

According to the first aspect of the present invention, the seat back which moves up and down can be automatically stopped at a position matching the shoulder of the occupant by the shoulder position detecting means. Therefore,
The work of selecting the height of the seat back that matches the shoulder of the occupant is easy, and a constant height position can always be selected for the occupant.

According to the second aspect of the present invention, a rail for vertically supporting the treatment element is provided inside the seat back, and a slope corresponding to the shoulder of the rail is provided at a portion corresponding to the shoulder. A headrest having an inclined portion as a lower surface is formed on the upper portion of the seatback so as to protrude toward the occupant, and the lower surface of the headrest comes into contact with the occupant's shoulder when the seatback is lowered.

According to the second aspect of the present invention, since the slope corresponding to the shoulder is provided at the shoulder corresponding portion of the rail, the treatment element located on the slope corresponds to the shoulder of the seater. Massage can be applied from the diagonally upper side, and a sufficient massage effect can be obtained. In addition, since the position where the lower surface of the headrest abuts on the shoulder of the occupant is the optimal position, automatic control of the seat back can be easily performed.

According to a third aspect of the present invention, the shoulder position detecting means outputs to the slide mechanism an operating means for starting automatic adjustment of the seat back height and a signal for raising and lowering the seat back to the uppermost position. And a switch unit that is mounted near the lower surface of the headrest and that is pushed by contact with the shoulder of the occupant to output a stop signal of the slide mechanism to the slide control unit.

According to the third aspect of the present invention, since the seat back is raised to the uppermost position by the slide control means and then lowered, it is possible to cope with a person of any physique. Then, the seat back is stopped by the switch means being pressed by the shoulder of the occupant, so that the seat back can be set to an optimum height matching the shoulder.

According to a fourth aspect of the present invention, the shoulder position detecting means outputs to the slide mechanism an operating means for starting automatic adjustment of the seat back height and a signal for raising and lowering the seat back to the uppermost position. A slide control means for detecting a rise in the control current and outputting a stop signal of the slide mechanism to the slide control means, which is prevented from lowering due to contact between the lower surface of the headrest and the shoulder of the occupant. Stopper means.

According to the fourth aspect of the invention, the lowering of the seat back is prevented by the contact between the lower surface of the headrest and the shoulder of the occupant during the lowering of the seat back, so that an increase in the control current at that time is detected. Since the stopper means stops the seat back, the seat back can be set to an optimum height matching the shoulder.

According to a fifth aspect of the present invention, the slide mechanism supporting the seat back so as to be vertically movable is rotatably mounted together with the seat back via a reclining mechanism fixed to a frame of the seat cushion. I have.

According to the fifth aspect of the present invention, the seat back can be rotated by the reclining mechanism, so that the occupant can freely adjust the reclining angle of the seat back. If a relative displacement occurs between the occupant and the treatment element due to the rotation of the seat back, the above-described shoulder position detection may be performed again.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 to FIG. 5 are views showing a first embodiment of the present invention. First, a mechanical description of a seat with a massage function according to this embodiment will be described based on FIGS.

The seat with a massage function according to this embodiment mainly includes a seat cushion 1, a seat back 2,
And a seat side 3. The seat cushion 1 includes a pipe-shaped frame 4 and a cushion body 5. The frame 4 has high rigidity, and a front portion is provided with a footrest 7 that can be raised horizontally by rotating a lever 6 of the seat side 3.
A large vibrating body 8 is provided at the center of the footrest 7 so as to apply an appropriate vibration to the leg of the seated person who is extended straight.

A reclining mechanism 9 is provided at a rear portion of the frame 4, and a pair of left and right sliding mechanisms 10 are attached to both left and right ends of the reclining mechanism 9 so as to be rotatable forward and backward.

The structure of the slide mechanism 10 will be described. Reference numeral 11 denotes a base having a U-shaped cross section, and a lower end portion is directly attached to a pivot S of the reclining mechanism 9. Base 11
On the rear side, a motor 12 is provided at a lower portion, and the upper end of a screw rod 13 extending upward from the motor 12 is supported by a bearing bracket 14 attached to an upper portion of the base 11. On the front side of the base 11, a fixed rail 1
The fixed rail 15 is provided with a movable rail 16.
Are slidably engaged. An arm 17 is formed from the movable arm 16 to the screw rod 13 through both the left and right sides of the base 11, and a nut 18 attached to the tip of the arm 17 is screwed to the screw rod 13. Accordingly, by rotating the screw rod 13 by the motor 12, the arm 17 moves up and down together with the movable rail 16.

On the other hand, a rail 19 is provided inside the seat back 2. The general part 20 corresponding to the back part P2 and the waist part P3 of the occupant (dummy in this embodiment) M on the rail 19 is formed in a straight line, but the position corresponding to the upper shoulder part P1 is An inclined portion 21 inclined toward the person M is formed. The rail 19 is provided with a movable treatment unit 22,
The motor and the chain mechanism (not shown) can move up and down along the rail 19 from the to the inclined portion 21.

The treatment unit 22 includes two slide bars 23 along the width direction W of the seat back 2 (see FIG. 3).
The slide bar 23 has a pair of left and right hydraulic cylinders 2 each having a treatment element 24 at the front end.
5 is attached movably in the width direction W along the slide bar 23. Therefore, the treatment element 24 not only moves up and down along the rail 19, but also at the shoulder P1 and the waist P3.
It also moves along the width direction W. By doing so, the massage effect at the shoulder P1 and the waist P3 is further enhanced. High-pressure oil from a pump (not shown) is sent to a hydraulic cylinder 25 that moves the treatment element 24 via an oil feed pipe 26.

The rail 19 of the seat back 2
Is fixed to the movable rail 16 of the slide mechanism 10 via a bracket 27 (see FIG. 3). Therefore, the reclining mechanism 9 allows the sliding mechanism 10
Is changed, the entire seat back 2 rotates back and forth about the rotation fulcrum S, and a desired reclining angle θ is obtained. Further, if the screw rod 13 is rotated by driving the motor 12, the movable rail 16 moves up and down via the arm 17, and accordingly, the entire seat back 2 also moves in the up and down direction along the reclining angle θ. It can be moved. The front and rear rotation and the vertical movement of the seat back 2 can be performed by operating the remote controller 28 (see FIG. 1).

The uppermost position of the treatment element 24 on the rail 19 of the treatment unit 22 is an inclined portion 21 as a "shoulder corresponding portion".
And the treatment element 2 of the treatment unit 22 in the inclined portion 21
In step 4, an optimal massage effect can be obtained by massaging the occupant's shoulder P1. That is, in this embodiment, by forming the inclined portion 21 toward the occupant M,
The shoulder pressing angle by the treatment element 24 is the optimal angle (specifically, the seating person (dummy) M) with the back on the seat back 2 (specifically,
The angle is set to about 30 degrees with respect to the torso line which is the central axis of the torso of the occupant M). This shoulder pressing angle of about 30 degrees is the angle at which most people felt comfortable as a result of performing a massage test on a plurality of persons by variously changing the angle at which massage was applied from the treatment element 24. is there.

Therefore, by moving the seat back 2 up and down, a person of any physique can adjust the treatment element 24 of the treatment unit 22 on the inclined portion 21 to the shoulder P1, and the optimum position for the shoulder P1 can be obtained. Massage can be performed. The vertical movement of the seat back 2, the vertical movement of the treatment element 24, the rotation of the reclining mechanism 9, and the like can be performed by operating the remote controller 28 as the "operation means" of the present invention.

Next, the structure of the seat back 2 will be described with reference to FIGS. The overall shape of the seat back 2 is formed by a resin base panel 29, and a rail 19 is provided inside the base panel 29.
On the upper part of the base panel 29, the inclined portion 21 of the rail 19 is provided.
Is formed in a state protruding toward the occupant M side. In addition, a central opening 30 is formed in the left and right center positions of the base panel 29 along the vertical direction. The central opening 30 is formed as a space for vertically moving the treatment element 24. The treatment element 24 also moves within the width of the central opening 30 in the width direction.

Back support panels 31 made of a resin panel having a thickness capable of being elastically deformed are attached to the left and right surfaces of the base panel 29 across the central opening 30 respectively. The side end 31a of the back receiving panel 31 is attached so as to protrude toward the center opening 30 by d. A cushion material 32 made of urethane is provided on the base panel 29 and the back panel 31, and the entire base panel 29 is wrapped by a skin cover (not shown).

On the surface of the base panel 29, a concave portion 33 (a cut-out portion is also possible) is formed in a region corresponding to the raised portion R from the lower part of the shoulder to the upper part of the flank of the occupant M. Therefore, in this portion, a gap corresponding to the depth of the concave portion 33 is formed between the back receiving panel 31 and the base panel 29. Accordingly, the back panel 31 is bent by being pushed by the raised portion R of the seat M, and the raised portion R of the seat M is deeply supported by the seat back 2, so that the seat M
Will be stabilized in the vertical direction.

When the raised portion R of the occupant M is deeply supported in this way, the central portion of the back of the occupant M enters the central opening 30 more deeply than in the past, and Stability is also improved. In addition, the side end 3 of the back panel 31
1a protrudes toward the central opening 30, the side end 31
a can flexibly support the body of the occupant M.

As described above, since the body of the occupant M is stable in the vertical and horizontal directions, the massage effect of the treatment element 24 is improved.

Then, the seat back 2 of this embodiment
Are the treatment elements 24 on the inclined portion 21 that is the “shoulder corresponding portion”.
Can be automatically aligned with the shoulder of any physique M.

That is, the seat back 2 is provided with "shoulder position detecting means". The shoulder position detection means outputs to the slide mechanism 10 the remote controller (operation means) 28 for starting the automatic adjustment of the height of the seat back 2 and a signal for raising the seat back 2 to the uppermost position and then lowering the same. A pressure sensor (switching means) 35 which is attached near the lower surface of the headrest H and is pushed by contact with the shoulder of the occupant M and outputs a stop signal of the sliding mechanism 10 to the slide controlling means 34.
It is composed of

Therefore, the seat back 2 which once descends after descending automatically stops at a position corresponding to the shoulder of the occupant M. As described above, the operation of selecting the height of the seat back 2 that matches the shoulder of the occupant M is easy, and a constant height position can always be selected for the occupant M. Further, the slide control means 34 can cope with a person of any physique in which the seat back 2 once rises to the uppermost position and then descends.

When the reclining angle θ of the seat back 2 is increased by the reclining mechanism 9 and a relative displacement occurs between the shoulder of the occupant M and the treatment element 24,
What is necessary is just to perform the above-mentioned shoulder position detection again.

FIG. 6 is a diagram showing a second embodiment of the present invention. The "shoulder position detecting means" according to this embodiment includes, in addition to the remote controller 28 and the slide control means 34, the sliding of the seat back 2 which is prevented from descending due to the contact between the lower surface of the headrest H and the shoulder of the occupant M. The mechanism 10 is provided with stopper means 36 for detecting an increase in the control current and outputting a stop signal of the slide mechanism 10 to the slide control means 34. Therefore, the seatback 2 can be automatically stopped at a position matching the shoulder of the occupant M without providing various sensors and the like on the seatback 2.

[0036]

According to the first aspect of the present invention, the seat back which moves up and down can be automatically stopped by the shoulder position detecting means at a position corresponding to the shoulder of the occupant. Therefore, the work of selecting the height of the seat back that matches the shoulder of the occupant is easy, and a constant height position can always be selected for the occupant.

According to the second aspect of the present invention, the slope corresponding to the shoulder of the rail is provided with a slope toward the occupant. Massage can be applied from the diagonally upper side, and a sufficient massage effect can be obtained. In addition, since the position where the lower surface of the headrest abuts on the shoulder of the occupant is the optimal position, automatic control of the seat back can be easily performed.

According to the third aspect of the invention, since the seat back is raised to the uppermost position and then lowered by the slide control means, it is possible to cope with a person of any physique. Then, the seat back is stopped by the switch means being pressed by the shoulder of the occupant, so that the seat back can be set to an optimum height matching the shoulder.

According to the fourth aspect of the present invention, the lowering of the seat back is prevented by the contact between the lower surface of the headrest and the shoulder of the occupant during the lowering of the seat back, so that an increase in the control current at that time is detected. Since the stopper means stops the seat back, the seat back can be set to an optimum height matching the shoulder.

According to the fifth aspect of the present invention, since the seat back can be rotated by the reclining mechanism, the occupant can freely adjust the reclining angle of the seat back. If a relative displacement occurs between the occupant and the treatment element due to the rotation of the seat back, the above-described shoulder position detection may be performed again.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a sheet with a massage function according to a first embodiment of the present invention.

FIG. 2 is a side view showing the internal structure of the massage function-equipped sheet.

FIG. 3 is a sectional view taken along the line SA-SA shown in FIG. 2;

FIG. 4 is a front view showing a seat back.

FIG. 5 is a sectional view with a block diagram along the line SB-SB shown in FIG. 4;

FIG. 6 is a sectional view showing a second embodiment of the present invention with a block diagram corresponding to FIG. 5;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 seat cushion 2 seat back 4 frame 9 reclining mechanism 10 slide mechanism 19 rail 21 inclined part (shoulder corresponding part) 24 treatment element 28 remote control (operation means) 34 slide control means (shoulder position detection means) 35 pressure sensor (switch means) 36 Stopper means H Headrest M Seat

Claims (5)

[Claims] 1. A seat back is supported by a slide mechanism attached to a frame of a seat cushion so as to be vertically movable along an attachment angle of the slide mechanism.
A massager-equipped seat for massaging the occupant's shoulder with a treatment element positioned at the shoulder-corresponding portion of the seatback, wherein the up-and-down moving seatback is stopped at a position where the shoulder-corresponding portion matches the occupant's shoulder. A seat with a massage function, wherein a shoulder position detecting means is provided. 2. The seat with a massage function according to claim 1, wherein a rail is provided inside the seat back so as to be capable of vertically moving the treatment element, and a seat corresponding to a shoulder of the rail is provided toward the occupant. A headrest having an inclined surface as a lower surface is formed at the upper part of the seat back so as to protrude toward the occupant, and the lower surface of the headrest is brought into contact with the occupant's shoulder when the seat back is lowered. A sheet with a massage function characterized by contact. 3. The seat with a massage function according to claim 1, wherein the shoulder position detecting means starts an automatic adjustment of the seat back height, and lowers after raising the seat back to the uppermost position. A slide control means for outputting a signal to the slide mechanism to the slide mechanism; and a switch means attached near the lower surface of the headrest and output to the slide control means by being pressed by contact with the shoulder of the occupant to output a stop signal for the slide mechanism. A seat with a massage function, characterized in that: 4. The seat with a massage function according to claim 1, wherein the shoulder position detecting means starts the automatic adjustment of the height of the seat back, and lowers after raising the seat back to the uppermost position. The slide control means for outputting a signal to the slide mechanism to the slide mechanism, and the slide control means for detecting the rise of the control current in the slide mechanism of the seat back which is prevented from lowering due to the contact between the lower surface of the headrest and the shoulder of the seat occupant. A seat with a massage function, comprising: stopper means for outputting a stop signal for the slide mechanism. 5. The seat with a massage function according to claim 1, wherein the sliding mechanism supporting the seat back so as to be vertically movable is fixed to a frame of the seat cushion. A seat with a massage function, which is rotatably mounted together with the seat back via a mechanism.