JPH11123217A - Seat provided with massage function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To take measures to oil leak without increasing the number of parts. SOLUTION: An oil pan 29 is provided at a lower range of a seat back 2 in a seat cushion 1. When oil leaks from a hydraulic mechanism inside the seat back 2, the oil can be received by the single oil pan 29. Contamination of a floor by oil can thus be prevented without increasing the number of parts.

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 or the width direction is provided in the seat back, and the treatment element has a structure in which a desired part can be massaged (see Japanese Utility Model Laid-Open No. 1-135926 as a similar technique).

[0003]

However, in such a conventional technique, since the treatment element is driven by a motor, the movement of the treatment element is mechanical, and improvement thereof has been desired. . Therefore, a method of driving the treatment element by hydraulic pressure is considered. However, when the treatment element is driven by hydraulic pressure, there is oil leakage from the hydraulic mechanism. for that reason,
To prevent oil leaking from each hydraulic mechanism from falling to the floor,
It is necessary to cover each hydraulic mechanism with its own cover,
The number of parts may be increased.

The present invention has been made by paying attention to such conventional technology, and provides a seat with a massage function which can take measures against oil leakage without increasing the number of parts.

[0005]

According to the first aspect of the present invention,
A massage function-equipped seat provided with a treatment element driven by hydraulic pressure in a seat back provided behind a seat cushion, wherein an oil pan is provided in a lower region of the seat back in the seat cushion.

According to the first aspect of the present invention, since the oil pan is provided in the lower region of the seat back in the seat cushion, even if oil leaks from the hydraulic mechanism inside the seat back, the oil is received by one oil pan. be able to. Therefore, it is possible to prevent the floor from being stained with oil without increasing the number of parts.

According to a second aspect of the present invention, a rear leg which is in contact with a floor surface in a width direction is formed at a rear end of a frame provided inside a seat cushion. A cover is formed at the upper end of the wall and extends rearward to cover the upper part of the rear leg.

According to the second aspect of the present invention, since the rear leg of the frame of the seat cushion can be hidden by the cover of the oil pan, the appearance of the seat with the massage function when viewed from the rear side is good. .

According to a third aspect of the present invention, a downward bent portion for covering the rear of the rear leg is formed at the rear end of the cover portion.

According to the third aspect of the present invention, since the downward bent portion that covers the rear of the rear leg is formed at the rear end of the cover, the appearance when viewed from the rear is further improved. Since the rear leg is sandwiched between the rear wall and the bent portion of the oil pan in the front-back direction, when the massage function-equipped seat is moved back and forth, the oil pan also moves together. Therefore, the movement of the sheet with the massage function is easy.

[0011] In the invention according to claim 4, the side end of the oil pan is placed on an inward flange formed on the side end of the seat cushion.

According to the fourth aspect of the present invention, since the side end of the oil pan is placed on the inward flange formed at the side end of the seat cushion, when the seat with the massage function is lifted. And the oil pan is lifted together. Therefore, the movement of the sheet with the massage function is easy.

According to a fifth aspect of the present invention, an oil absorber is provided inside an oil pan.

According to the fifth aspect of the invention, the oil in the oil pan is absorbed by the oil absorber, so that even if the oil pan is moved, the oil does not spill. Further, generation of oil odor is also prevented.

[0015]

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

First, the structure of a seat with a massage function according to this embodiment will be described with reference to 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 is formed of a highly rigid pipe. At the front and rear ends of the frame 4, front legs 4a which are in contact with the floor surface along the width direction, respectively.
And a rear leg 4b are formed. Also, this frame 4
Is provided with a footrest 7 which can be raised horizontally by rotating a lever 6 of the seat side 3. A large vibrating body 8 is installed at the center of the footrest 7 so as to give an appropriate vibration to a straight leg.

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 end portions of the reclining mechanism 9 so as to be rotatable back and forth.

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 rail 16 to the screw rod 13 through 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, by changing the angle of the slide mechanism 10 by the reclining mechanism 9, the entire seat back 2 is rotated back and forth about the rotation fulcrum S, and a desired reclining angle θ is obtained. If the screw rod 13 is rotated by driving the motor 12, the arm 1
Since the movable rail 16 moves up and down through 7, the seat back 2 as a whole can move in the up and down direction along the reclining angle θ. 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.
The treatment element 24 of the treatment unit 22 in the
By massaging 1, an optimal massage effect is obtained. That is, in this embodiment, since the inclined portion 21 is formed on the side of the occupant M, the shoulder pressing angle by the treatment element 24 is set to the occupant (dummy) having the back on the seat back 2.
The angle is set to be an optimum angle with respect to M (specifically, about 30 degrees with respect to the torso line that is the central axis of the torso of the occupant M). This shoulder pressing angle of about 30 degrees is an angle that many people feel comfortable as a result of performing a massage test on a plurality of people by variously changing the angle at which massage is applied from the treatment element 24. .

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. After the seat back 2 is moved up and down to fit the physique, the treatment unit 22 is automatically raised to the uppermost inclined portion 21 by simply pressing the “shoulder” button of the remote controller 28, and the treatment element 24 Can be massaged.

The occupant M can use the remote controller 2 if desired.
By operating the reclining mechanism 9 at 8, the slide mechanism 10 is rotated together with the seatback 2, and the reclining angle θ of the seatback 2 can be freely adjusted. Set the reclining angle θ to the maximum 90 degrees,
The seat back 2 may be substantially horizontal. The reclining angle θ is increased so that the shoulder P1 of the seated person M and the treatment element 2
When a relative displacement occurs between the seat back 2 and the seat back 4, the relative displacement can be corrected by slightly lowering the seat back 2.

The seat with the massage function according to the present embodiment having the above-described structure includes the hydraulic cylinder 2 described above.
An oil pan 29 is provided to prevent oil leakage from the oil supply pipe 5 and the oil feed pipe 26. This oil pan 29
Is installed in a lower region of the seat back 2 in which a hydraulic mechanism is built. The oil pan 29 has a rectangular container shape, and has an oil absorber 30 provided therein. At the upper end of the rear wall 29a of the oil pan 29, a cover 31 extending horizontally horizontally and covering the rear leg 4b from above is formed. A downward bent portion 32 that covers the rear of the rear leg 4b is also integrally formed at the rear end of the cover 31. Further, the side end of the oil pan 29 is placed on an inward flange 33 formed at the side end of the seat side 3, as shown in FIG.

As described above, since the oil pan 29 is provided in the lower region of the seat back 2, the seat back 2
Even if oil leaks from the hydraulic mechanism inside, the oil can be received by one oil pan 29. Therefore, it is possible to prevent the floor from being stained with oil without increasing the number of parts.

The rear leg 4b of the frame 4 of the seat cushion 1 is connected to the cover 31 of the oil pan 29 and the bent portion 32.
Can be completely hidden, so that the sheet with the massage function looks good when viewed from the rear side.

Further, the rear leg 4b is connected to the rear wall 2 of the oil pan 29.
Since the sheet with the massage function is moved back and forth, the oil pan 29 moves together with the sheet with the massage function because it is sandwiched in the front-rear direction by the bent portion 32 and 9a. And seat side 3
Since the oil pan 29 is mounted on the inward flange 33 of the above, when the sheet with the massage function is lifted, the oil pan 29 is lifted together. Therefore, the movement of the sheet with the massage function is easy.

In addition, the oil in the oil pan 29 is absorbed by the oil absorber 30, so that the oil does not spill even when the oil pan 29 is moved. Further, generation of oil odor is also prevented.

[0031]

According to the first aspect of the present invention, since the oil pan is provided in the lower region of the seat back in the seat cushion, even if oil leaks from the hydraulic mechanism inside the seat back, the oil is supplied to one oil pan. You can catch it. Therefore, it is possible to prevent the floor from being stained with oil without increasing the number of parts.

According to the second aspect of the present invention, the rear legs of the frame of the seat cushion can be hidden by the cover of the oil pan, so that the appearance of the seat with the massage function when viewed from the rear side is good. .

According to the third aspect of the present invention, since the downward bent portion that covers the rear of the rear leg is formed at the rear end of the cover, the appearance when viewed from the rear is further improved. Since the rear leg is sandwiched between the rear wall and the bent portion of the oil pan in the front-back direction, when the massage function-equipped seat is moved back and forth, the oil pan also moves together. Therefore, the movement of the sheet with the massage function is easy.

According to the fourth aspect of the present invention, the side end of the oil pan is placed on the inward flange formed at the side end of the seat cushion. And the oil pan is lifted together. Therefore, the movement of the sheet with the massage function is easy.

According to the fifth aspect of the present invention, the oil in the oil pan is absorbed by the oil absorber, so that the oil does not spill even when the oil pan is moved. Further, generation of oil odor is also prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a massage function-equipped sheet according to an 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 perspective view showing an oil pan.

FIG. 5 is a sectional view taken along the line SB-SB shown in FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 seat cushion 2 seat back 4 frame 4 b rear leg 24 treatment element 29 oil pan 29 a rear wall 30 oil absorber 31 cover 32 bent portion 33 inward flange

Claims (5)

[Claims] Claims 1. A seat with a massage function in which a treatment element driven by hydraulic pressure is provided in a seat back provided behind a seat cushion, wherein an oil pan is provided in a lower region of the seat back in the seat cushion. A seat with a massage function, characterized in that: 2. The seat with a massage function according to claim 1, wherein a rear leg in contact with a floor surface in a width direction is formed at a rear end of a frame provided inside the seat cushion. A seat having a massage function, wherein a cover portion extending rearward at an upper end of a rear wall of the oil pan and covering an upper portion of a rear leg is formed. 3. The sheet with a massage function according to claim 2, wherein a downward bent portion that covers the rear of the rear leg is formed at a rear end of the cover portion. 4. The massage function seat according to claim 3, wherein a side end of the oil pan is placed on an inward flange formed on a side end of the seat cushion. With sheet. 5. The sheet with a massage function according to claim 1, wherein an oil absorber is provided inside the oil pan.