JPS60193731A - Side support of automobile seat - Google Patents

Abstract

PURPOSE:To ease operation of side supports, increase holding force thereof, and facilitage getting on and off an automobile by elevating the side supports with the operation of a cam and making it lockable at elevating and lowering positions by means of a lock means. CONSTITUTION:Side supports 21 are provided on both sides of a cushion frame 6. The frontal end of the support frame 22 of the left side support 21 on the door side is pivoted on the cushion frame 6, and the rear end is made elevatable. A cam member 30 is also pivoted on the cushion frame 6, and the pin of the support frame 22 is slidingly fitted in a guide groove 34 by means of the cam member 30, and a seat is operated by an operating lever 31. The operating lever 31 is locked with the locking plate 38 of the cushion frame 6, whereby the side supports 21 are fixed at elevating and lowering positions. The cam member 30 may be operated with a drive motor.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a side support provided on a seat cushion of an automobile seat to maintain the seating posture of an occupant from the side. Regarding.

(Prior art) The side support provided on the car seat is
2. This is provided for the purpose of holding the thighs of the seated occupant from the side to stabilize the sitting posture when the vehicle is running, especially when cornering. It is also provided so as to protrude upward.

If the amount of protrusion of the side support is increased, its holding power will be improved, but if the amount of protrusion is increased, the presence of the side support will become an obstacle, impairing the ease of getting on and off the vehicle.

Therefore, in the past, the side supports were made to be able to be raised and lowered.When the vehicle was running at the waist, the sitting posture was maintained in the "Y1" state of the side supports, and when getting on and off, the side supports were lowered, so that the presence of the side supports was an obstacle to getting on and off. There are some things that I have tried to prevent from happening.

In this case, the conventional structure is such that one end of the support frame 70 is pivotally connected to the rear part of the cushion frame 71 by a pin 72, as shown in FIG.
11u end side is formed so as to be retractable, and a spring 73 is provided between the support frame 70 and the cushion frame 71, and the support frame 70 is always urged upward by the spring 73. There is.

Therefore, in the conventional structure described above, the spring 73 forces the support frame 7() upward and the side support is fixed in the raised state only by this biasing force, so that a pressing force is applied to the side support. In addition, when the vehicle is running, the side support may unexpectedly lower and its holding function may be impaired, and when getting in or out of the vehicle, the side support must be held against the spring 73 while simultaneously opening and closing the door. However, there were problems in terms of the holding power of the side support and the ease of getting on and off, such as requiring complicated steps to get on and off the vehicle.

(Object of the Invention) The present invention has been made to solve these conventional problems, and its purpose is to make it possible to easily raise and lower the side supports by performing the raising and lowering operation of the side supports by cam operation. It is an object of the present invention to provide a side support that can reliably exert a holding force in a raised state and eliminates the need for the troublesome effort of holding down the side support by hand when getting on and off.

(Structure of the Invention) That is, in order to achieve this object, in the first invention, in an automatic 4-seat 11 seat in which side supports are provided on both left and right sides of the seat cushion, at least a support frame built into the side support on the door side is provided. One end is pivotally connected to the cushion frame, and the other end of the support frame is formed to be movable up and down, and a cam member is provided between the support frame and the cushion frame to raise and lower the support frame between a lowered position and a raised position. and a manual operation lever is connected to the cam member, and a fixing member for fixing the manual operation lever in the lowered position and the raised position of the support frame is attached to the cushion frame, and In a second invention, in an automobile seat in which side supports are provided on both left and right sides of a seat cushion, at least one end of a support frame built into the side support on the door side is pivotally connected to the cushion 7 frame, and the other end side of the support frame is pivoted to the cushion 7 frame. A cam member is provided between the support frame and the cushion frame to raise and lower the support frame between a lowered position and a raised position. A drive motor is connected to the drive motor via a fixing means that fixes the drive motor at the "1" and "1" raised positions.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

In describing the embodiment, an automobile passenger seat having a left side support that can be raised and lowered will be used as an example of the automobile seat. In each embodiment, the same constituent parts are given the same reference numerals in the drawings for convenience.

First, an embodiment of the first invention will be described with reference to FIGS. 1 to 3.

In the figure, reference numeral 1 denotes a passenger seat (hereinafter referred to as "seat") of an automobile, and a seat back 4 is provided at the rear of a seat cushion 2 via a reclining device 3.

Reference numeral 5 denotes a seat slider, which slides freely between upper rails 7 extending in the front-rear direction on the lower surfaces of both sides of the cushion frame 6, and lower rails 9 extending in the front-rear direction via mounting brackets 8 on the floor of the IT body. By intersecting with each other and moving the upper rail 7 along the lower rail 9, the seat 1 is moved back and forth.

In addition, 1 ( ) is a frame line of the seat cushion, 11 is a cushion spring, 12 is a pad, and 13 is an outer skin.

Next, 2 (1 and 21 are side supports, which are provided on both the left and right sides of the cushion frame 6. In this case, in this embodiment, the right side support 20 is formed by making the right side part of the seat cushion 2 bank high, Further, the left side support 21 on the door side is formed separately from the seat cushion 2 and is attached to the left side 111 of the seat cushion 2.
11 in the front-back direction.

The left side support 21 (hereinafter referred to as side support) has a substantially trapezoidal support frame 2 at its core.
2 is provided, and a pad 23 is provided on the outer periphery of the support frame 22 except for the bottom side.
A skin 24 is stretched over the skin 2 and covers the skin 2.
4 is formed into an internal structure whose lower edge is cut out along a frame line 25.

Further, the side support 21 is supported such that the front side is the center and the rear side is movable. In this case, the support structure is such that the front end of the support frame 22 is connected to the cushion frame 6
The support frame 22 is pivotally connected to a bracket 26 provided in the support frame 26 by a pin 27, so that the rear side of the support frame 22 can be lowered by 91 degrees.

The side support 21 is raised and lowered between a raised position and a lowered position by a cam member 3 ( ) and a manual operation lever 31 connected to the cam member 30 . A cam member 30 is pivotally attached to a bracket 32 protruding from the frame 6 by a cam shaft 33, and a guide groove 34 whose distance from the cam shaft 33 is gradually changed is formed in the cam member 30.
The frame 221 is provided with a pin 35 protruding outward, the pin 35 is slidably fitted into the guide groove 34, and the support frame 221 is provided between the support frame 22 and the cushion frame 6. A tension spring 36 is provided to assist the lowering of the cam member 30, and the cam member 30 is provided with a manually operated lever 31 having an elastic small diameter portion 37 in the middle.
It has an integrated structure. In this embodiment, the manual operation lever 31 is connected to the cushion 7 frame 6.
The rotation of the cam member 30 is fixed by locking the locking plate 38, which is an 11-digit fixed member, and the support frame 22 is moved to the raised position (Fig. 2) and the lowered position (Fig. 3). In this case, the locking plate 3;
(The side support 21 is fixed in the raised position via the cam member 30 and pin 35 with the manual operation lever 31 locked in the upper locking part 39 formed in the locking plate 38. A manual operation lever 3 is attached to the locking part 40.
1 is locked, the side support 21 is fixed in the lowered position.

Therefore, in this embodiment, the cam member 30 is rotated by the rotation operation of the manual operation lever 31, and the support frame 22 is moved up and down in accordance with the rotation of the cam member 3(). The side support 21 can be raised and lowered only by operating the manual operation lever 31, and the side support 21 can be fixed in the raised position and the lowered position by locking the manual operation lever 31 to the locking plate 38. This eliminates the need to hold down the side supports with your hands when getting on and off.

Next, a reference example of the present invention will be explained with reference to FIGS. 6 and 7.

In this reference example, the cam member 3 ( ) itself has a fixing force (resistance) for fixing the side support 21 in the raised position (Fig. 4) and the lowered position (Fig. 5). Accordingly, the cam member 30 is formed with a two-way surface 45 that comes into contact with the cushion frame 6 when the support frame 22 is raised to the lowered position, and when the support frame 22 is lowered to the lowered position. In this reference example, the cam member 30 is connected to the support frame 2.
2, a downwardly extending portion 47 is provided on the free end side of the support frame 22, and the downwardly extending portion 47 is inserted into the cushion frame 61 (; It is slidably fitted into the metal fitting 48 to prevent the support frame 22 from swinging laterally.

Therefore, in this reference example, by simply rotating the manual operation lever 31, the side bow) 21 can be raised and lowered via the cam member 30, and at the same time, the side bow) 21 can be removed from the cam member 3. can be fixed in a raised position and a lowered position.

Next, an embodiment of the second invention will be described with reference to FIGS. 4 and 5.

In this embodiment, a drive motor 50 is connected to the cam member 30 via a side support fixing means, and the drive motor 50 is
The feature is that the side support 21 is raised and lowered while the cam member 30 is rotated by 0.

In this case, a drive motor 50 is mounted on the cushion frame 6, and an ohmic reduction gear mechanism 51 serving as a fixing means is interposed between the drive motor 50 and the camshaft 33. An upper limit switch 52 contacts the support frame 22 to stop the drive motor 50 when the side support 21 is in the raised position, and an upper limit switch 52 contacts the support frame 22 to stop the drive motor 50 when the side support 21 is in the lowered position. A lower limit switch 53 for stopping the engine is mounted upright on the cushion frame 6 and is fixed to a plate 54, and a start switch (not shown) is provided at an appropriate position, such as an instrument panel or a door. .

Therefore, in this embodiment, the side support 21 can be raised and lowered by the rotation of the cam member 30 caused by the operation of the drive motor 50, and at the same time, the cam member 30 is fixed by the worm reduction gear mechanism 51 when the drive motor 50 is stopped. Therefore, the side support 21 can be fixed in the raised position and the lowered position.

Although the embodiments of the first invention and the second invention have been described above with reference to the drawings, the specific configuration of the invention is not limited to the above-described embodiments.

For example, in the embodiment, a passenger seat is used in which the left side support has an elevating structure, but both the left and right side supports may have an elevating structure, and the same can be done for driving seats, etc.

Further, in the embodiment, the side support is constructed separately from the seat cushion, but it may be constructed integrally with the seat cushion. In this case, the pad and the skin would extend from the seat cushion to the support frame. In the case of an integral structure, there is a risk that the outer skin may sag when the support frame is lowered, but in this case, it is preferable to tension the back surface of the outer skin with a spring or the like.

In addition, in the embodiment, the side support is centered on the front side and ζ
Although the case where the rear side is supported by a retractable mechanism 1 is shown, it is also possible to use a support structure in which the front side is raised and lowered using the rear side as a fulcrum.

It is also possible to bring the cam member into contact with the upper surface of the support frame, and in this case, a compression spring or the like is interposed between the support frame and the cushion frame to urge the support frame upward. It turns out. Note that it is possible to attach the cam member to the support frame side.

Further, in the second invention, in the embodiment, a ohm reduction gear mechanism is interposed between the camshaft and the drive motor as a fixing means, but if a brake motor or the like is used as the drive motor, the drive motor can be directly connected to the camshaft. You can also.

Regarding the drive motor, either a unidirectional rotation motor or a forward/reverse rotation motor can be used depending on the cam shape, but when using a unidirectional rotation motor, the cam member must be rotated in order to prevent interference between the cam member and the cushion frame. It is preferable that the support frame be in contact with the upper surface side of the support frame.

(Effects of the Invention) As explained below, according to the present invention, the side support Y
The cam member can be raised and lowered automatically without having to directly lift or push it down. Also, the side supports can be fixed at the upper Y1 position and the lowered position, so the side supports can be moved up and down when getting on or off. This eliminates the need for the troublesome effort of holding it down, making it easier to get on and off, and also reliably performs the holding function in different positions.

[Brief explanation of the drawing]

Figures 1 to 3 show embodiments of the first invention.
The figure is a cutaway perspective view of the passenger seat, and FIGS. 2 and 3 are side views showing the raising and lowering movement of the side supports. Also, I
64 and 5 show an embodiment of the second invention,
FIG. 6 is a side view showing the raising and lowering operations of the side supports. Further, FIGS. 6 and 7 show reference examples of the present invention, and are side views showing the raising and lowering operation of the side supports, respectively. Moreover, FIG. 8 is a perspective view showing a conventional structure. 1: Passenger seat 2: Seat cushion 6: Kun/9n frame 20: Side support 21: Side support 22: Support frame 3 (): Cam member 31: Manual operation lever 38: Locking plate (fixing member) 45: Stopper surface 46: Stopper surface 50: Drive motor 51: Worm reduction gear mechanism (fixing means) Patent applicant
Nissan Shatai Co., Ltd. Agent Aya 1) Masamichi Figure 2 2I 26 3630 32 6 Figure 3 2 Figure 4 I Figure 5 I 50 Figure 6 1 82!1

Claims (1)

[Scope of Claims] l) In an automobile seat in which side supports are provided on both left and right sides of a seat cushion, at least one end of a support frame built into the side support on the door side is pivotally connected to the cushion frame, and the support frame is mounted on the cushion frame. The other end side is formed to be able to be raised and lowered, and a cam member is provided between the support frame and the cushion frame to raise and lower the support frame between the lowered position and the upper y1 position. 1. A side support for an automobile seat, characterized in that a counterfeit lever is arranged in series, and a fixing member for fixing the manual operation lever in a lowered position and a raised position of the support frame is attached to a cushion frame. 2) In an automobile seat in which side sabots Y are provided on both the left and right sides of the seat cushion, at least one end of the support frame built into the side support F on the door side is pivoted to the cushion frame, and the other end of the support frame is raised and lowered. A cam member is provided between the support frame and the shoecon frame for raising and lowering the support frame between a lowered position and a raised position, and the cam member is provided with a cam member for raising and lowering the side support between a lowered position and a raised position. A side support for a car seat, characterized in that a drive motor is connected to it via a fixing means that fixes it in a raised position.