JP2020124970A - Vehicular seat - Google Patents

Abstract

To provide a vehicular seat configured so that a site to be protected can be protected without covering the whole of a lower surface of a seat cushion.SOLUTION: A cushion frame 1 in a vehicular seat has: a first pan frame 50 which is positioned behind the cushion frame 1 and receives occupant weight; a second pan frame 60 which is positioned closer to a front side than the first pan frame 50 and receives occupant weight; and a front frame 5 which is positioned between the first pan frame 50 and the second pan frame 60 and on which a front end part 51b of the first pan frame 50 is mounted. On a lower surface of the second pan frame 60 is provided a control device 12 that controls motion of an electrical component mounted on the vehicular seat. A mounting site of the first pan frame 50 with respect to the front frame 5 is to be protected, so that the mounting site and the control device 12 are arranged adjacently in a longitudinal direction.SELECTED DRAWING: Figure 1

Description

The present invention relates to a vehicle seat.

A space is often formed between the seat cushion and the floor panel in the vehicle seat, and the hands and fingers of an occupant may be inserted into the space, or a tool may be inserted during maintenance, for example. On the other hand, on the lower surface of the seat cushion, there is a portion where the performance of the seat cushion should be maintained (for example, a pressure receiving member that receives the load of an occupant). Therefore, it is required to suppress the occurrence of a situation in which such a portion is abruptly removed from the cushion frame by a hand/finger or a tool placed in the gap.
Therefore, conventionally, a resin molded product cover is attached to the lower surface of the seat cushion, or a seat cushion entirely covered with a skin material is fixed to the floor panel of the vehicle, so that the entire lower surface of the seat cushion in the vehicle seat is fixed. There is known a technique for coating (see, for example, Patent Document 1).

JP, 2016-037272, A

By the way, an ECU (Electronic Control Unit) device for controlling electric components mounted on the vehicle seat is attached to the lower surface of the seat cushion of the vehicle seat, or the vehicle seat is moved forward and backward with respect to the floor panel. In some cases, a slide mechanism that slides in the direction may be provided. Therefore, if the entire lower surface of the seat cushion is covered with a cover as in the conventional case, maintenance work of the ECU device and operation of the slide mechanism may be hindered.
However, on the other hand, there is also a demand to protect the portion of the lower surface of the seat cushion where the performance of the seat cushion should be maintained.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle seat that can protect a portion to be protected without covering the entire lower surface of the seat cushion.

In order to solve the above-mentioned problems, the invention according to claim 1 is a vehicle seat provided with a cushion frame constituting a skeleton of a seat cushion,
The cushion frame is
A first pan frame that is located on the rear side of the cushion frame and receives the load of an occupant,
A second pan frame located on the front side of the first pan frame and receiving a load of an occupant,
Positioned between the first pan frame and the second pan frame, and has a front frame to which the front end of the first pan frame is attached,
On the lower surface of the second pan frame, a control device for controlling the operation of the electrical components mounted on the vehicle seat is provided,
A mounting portion of the first pan frame with respect to the front frame is a protection target, and the mounting portion and the control device are arranged adjacent to each other in the front-rear direction.

According to a second aspect of the present invention, in the vehicle seat according to the first aspect, the lower surface of the control device is located below the attachment portion.

According to a third aspect of the present invention, in the vehicle seat according to the first or second aspect, a side end portion of the front frame is formed to be curved,
The curved side end portion faces a side surface of the control device.

According to a fourth aspect of the present invention, in the vehicle seat according to the third aspect, the control device is arranged closer to the seat center side than the curved side end portion.

According to a fifth aspect of the present invention, in the vehicle seat according to any one of the first to fourth aspects, a front side surface of the attachment portion and a rear side surface of the control device face each other. To do.

The invention according to claim 6 is the vehicle seat according to any one of claims 1 to 5, wherein the lower surface of the second pan frame has a shape recessed upward from the second pan frame. The recess is formed,
The control device is arranged and fixed on the lower surface of the second pan frame across the recess.

The invention according to claim 7 is the vehicle seat according to any one of claims 1 to 6, wherein:
The seat cushion is
The cushion frame,
A cushion pad provided on the upper surfaces of the first pan frame and the second pan frame in the cushion frame,
A skin covering the cushion pad from the peripheral portions of the first pan frame and the second pan frame.

According to the invention described in claim 1, for example, even if a hand or a finger of an occupant is put in from the front in a gap formed between the seat cushion and the floor panel, or a tool is put in at the time of maintenance. The control device comes into contact with the control device before the attachment site to be protected. That is, the control device acts as a barrier against hands/fingers and objects that have entered through the gap and makes it difficult to access the attachment site that is the protection target. Makes it easier to protect. As a result, it is possible to suppress the occurrence of a situation in which the first pan frame comes off the front frame.

According to the invention described in claim 2, since the lower surface of the control device is located below the attachment portion, the control device is likely to be a barrier against a hand/finger or an object that has entered through the gap, and the object to be protected. It becomes more difficult to access the attachment site.

According to the third aspect of the invention, since the curved side end portion of the front frame faces the side surface of the control device, the curved side end portion can access the attachment site to be protected. Get more difficult.

According to the invention of claim 4, since the control device is arranged closer to the seat center side than the curved side end portion, for example, in the gap formed between the seat cushion and the floor panel, Even if an occupant's hands or fingers are put in by someone, or a tool is put in during maintenance, the curved side end makes it more difficult to access the attachment site to be protected.

According to the fifth aspect of the invention, since the front side surface of the mounting portion and the rear side surface of the control device face each other, it becomes difficult for the control device to access the front side surface of the mounting portion to be protected. ..

According to the invention described in claim 6, since the rigidity of the second pan frame can be improved by the concave portion, and the control device can be provided in the part where the rigidity is improved as described above, the control for the second pan frame is performed. The fixed state of the device can be made stable and strong.

According to the invention described in claim 7, since the outer skin covers the cushion pad from the peripheral portions of the first pan frame and the second pan frame, the entire lower surface of the seat cushion is not covered, and maintenance work of the control device is performed. Easy to do.

It is a perspective view showing a seat frame which constitutes a frame of a vehicle seat. It is a top view which shows a seat frame. It is a bottom view which shows a seat frame. It is a perspective view which shows the back surface side of a cushion frame. FIG. 7 is a perspective view showing the vicinity of the main part on the back surface side of the cushion frame with the cushion side frame and the like omitted. FIG. 7 is a cross-sectional view showing the vicinity of the main part on the back surface side of the cushion frame with the cushion side frame and the like omitted.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, various technically preferable limitations for carrying out the present invention are attached to the embodiments described below, but the technical scope of the present invention is not limited to the following embodiments and illustrated examples. Absent.

The vehicle seat according to the present embodiment includes at least a seat cushion that supports a person's thighs and buttocks, and a seat back whose lower end is supported by the seat cushion and serves as a backrest. If necessary, an auxiliary support portion such as a headrest that supports a person's head, an armrest that supports a person's arm, and an ottoman that supports a person's leg is provided.
Such a vehicle seat is supposed to be provided in an automobile that is a passenger car, but is not limited to this, and may be provided in another automobile such as a bus or a truck, or a railway, a ship, or an aircraft. It may be provided in vehicles other than automobiles such as.

1 to 3, reference numeral 1 indicates a cushion frame forming a skeleton of a seat cushion, and reference numeral 8 indicates a back frame forming a skeleton of a seat back.
The seat cushion includes a cushion frame 1, a cushion pad (not shown) provided on the cushion frame 1, and a skin (not shown) that covers the cushion frame 1 and the cushion pad to form a surface of the seat cushion. Mainly composed.
Similarly, the seat back includes a back frame 8, a cushion pad (not shown) provided in front of the back frame 8, and a skin (not shown) that covers the back frame 8 and the cushion pad to form the surface of the seat back. Mainly composed of,.
The back frame 8 is provided with a side airbag 8a that swells when the vehicle receives a shock equal to or more than a collision from the side of the vehicle at a certain speed or more. The side airbag 8a is arranged outside the vehicle. Further, the side airbag 8a is linked with a seating sensor 10 which will be described later, and is set so as not to operate when a person is not sitting on the vehicle seat.

The cushion frame 1 includes a pair of left and right cushion side frames 2 and 3, a back pipe frame 4 connecting the rear ends of the cushion side frames 2 and 3, and a front pipe connecting the front ends of the cushion side frames 2 and 3. It is mainly configured by a frame 5 (that is, a front frame) and a first pan frame 50 and a second pan frame 60 as pressure receiving members that receive a load of an occupant.
The pair of left and right cushion side frames 2 and 3 are connected to the back frame 8 at their rear ends, so that the rear ends are curved upward.
The back pipe frame 4 is a pipe material and connects the rear end portions of the pair of left and right cushion side frames 2 and 3 which are curved as described above, and therefore is located above the front pipe frame 5.
The front pipe frame 5 is a pipe material, and as shown in FIGS. 3 to 5, the right end portion 5a is formed to be curved in a crank shape (there are two bent portions).

Below the cushion frame 1, a pair of left and right slide rails 6 and 7 for sliding the cushion frame 1 to arbitrary front and rear positions with respect to the floor of the vehicle based on an operation of an occupant are provided. The left slide rail 6 is attached to the left cushion side frame 2, and the right slide rail 7 is attached to the right cushion side frame 3. It is assumed that the slide rails 6 and 7 are provided with a lock mechanism that locks and unlocks the operations of the slide rails 6 and 7.
Since the slide rails 6 and 7 are provided below the cushion frame 1 in this manner, the seat cushion is arranged above the floor panel with a gap. That is, a space is formed in which a person's hand/fingers, tools, etc. enter below the seat cushion.
Since the slide rails 6 and 7 are provided on the left and right of the seat cushion, when a hand, a finger, or a tool is put in the gap, it is put in mainly from the front or the rear.
Further, in front of the gap, an operation lever L that extends from the lock mechanism and operates the lock mechanism is located.

The cushion pad that constitutes the seat cushion together with the cushion frame 1 is provided on the first pan frame 50 and the second pan frame 60.
In addition, the above-mentioned skin covers the cushion pads from the peripheral portions of the first pan frame 50 and the second pan frame 60. In other words, the lower surface of the seat cushion is in a state in which the peripheral portion is covered with the skin and the center side of the peripheral portion is open without being covered, and the side surface and the upper surface of the seat cushion are covered with the skin.
In other words, since the vicinity of the center of the lower surface of the seat cushion is open without the outer skin being provided, maintenance work for the cushion frame 1, the device provided in the cushion frame 1, and the like can be performed from this opening. It is like this.

Hereinafter, detailed configurations of the first pan frame 50 and the second pan frame 60 will be described.
The first pan frame 50 and the second pan frame 60 are pressure receiving members made of a metal plate material that receives a load of an occupant, and the first pan frame 50 and the second pan frame 60 are used in combination. It is formed in a substantially box shape and can accommodate a cushion pad.
Further, the first pan frame 50 and the second pan frame 60 have mounting holes (through holes) into which clip members 20 and 30 for fastening various cables and devices to the first pan frame 50 and the second pan frame 60 are inserted. A plurality of holes are formed.

First, the first pan frame 50 is located on the rear side of the cushion frame 1, and is located below the buttocks of the occupant when seated in a normal driving position.
The first pan frame 50 has a rear end portion 51a attached to the back pipe frame 4 and a front end portion 51b attached to the front pipe frame 5, and is bridged between the back pipe frame 4 and the front pipe frame 5. It is in a state.

The first bread frame 50 has a bottom surface portion 51 that receives a cushion pad.
The bottom surface portion 51 gradually rises as the rear end portion 51a goes rearward, the front end portion 51b gradually rises as it goes forward, and both side end portions 51c located on both sides of the rear end portion 51a face sideways. It is formed so that it gradually rises as it goes. That is, the bottom surface portion 51 of the first pan frame 50 is formed in a shape that easily receives the cushion pad.

The first pan frame 50 has a first rear hook 52a, a second rear hook 52b, and a third rear hook 52c as mounting portions mounted on the back pipe frame 4, and is mounted on the front pipe frame 5. Has a first front hook 53a, a second front hook 53b, and a third front hook 53c.
Each of the hooks 52a to 52c and 53a to 53c is a hook-shaped portion having an inner diameter substantially equal to the diameter of each of the pipe frames 4 and 5.

The first rear hook 52a, the second rear hook 52b, and the third rear hook 52c are integrally formed with the rear end portion 51a of the bottom surface portion 51 and are arranged at equal intervals.
The first rear hook 52a and the third rear hook 52c provided on the left and right are formed in the same shape, and the second rear hook 52b provided at the center is the first and third rear hooks on the left and right. It is formed wider toward the left and right than 52a and 52c.
The first rear hook 52a, the second rear hook 52b, and the third rear hook 52c are attached to the back pipe frame 4 by being hooked on the back pipe frame 4 from above.

The first front hook 53a, the second front hook 53b, and the third front hook 53c are integrally formed with the front end portion 51b of the bottom surface portion 51 and are arranged at equal intervals.
The first front hook 53a and the third front hook 53c provided on the left and right are formed in the same shape, and the second front hook 53b provided at the center is more than the left and right first and third front hooks 53a, 53c. Is also formed wide toward the left and right.
The first front hook 53a, the second front hook 53b, and the third front hook 53c are attached to the front pipe frame 5 by being hooked on the front pipe frame 5 from above.

As described above, in the first pan frame 50, the hooks 52a to 52c and 53a to 53c are hooked from above on the pipe frames 4 and 5, and most of the cushion pad is received, and further, by the skin. It is covered.
Therefore, for example, when the hooks 52a to 52c and 53a to 53c come off from the pipe frames 4 and 5 at the time of maintenance work, the hooks 52a to 52c are peeled off after the skin is peeled off or the cushion pad is removed. , 53a to 53c must be hooked on the pipe frames 4 and 5 again, which is troublesome.
Therefore, the attachment parts (the positions of the hooks 52a to 52c and 53a to 53c) of the first pan frame 50 to the pipe frames 4 and 5 are protected.
In particular, the lower surface of the seat cushion is in an open state in which the central side is not covered by the skin, and therefore the locations of the front hooks 53a to 53c attached to the front pipe frame 5 exposed from the opening are important. It is protected.

As shown in FIGS. 1 and 2, a concave portion 50a that is one step lower than the upper surface of the first pan frame 50 is provided in the central region in the width direction of the upper surface of the first pan frame 50, and the concave portion 50a is provided. The sensor 10 is arranged in the. It should be noted that openings 50b that communicate the front side and the back side of the first pan frame 50 are formed on both left and right sides of the concave portion 50a.
The sensor 10 is, for example, a seating sensor (also referred to as a position sensor) capable of detecting whether or not an occupant is seated on the seat. That is, the seating sensor 10 is arranged above the first pan frame 50, which is a pressure receiving member, in the center region of the seat cushion in the width direction.

Although the seating sensor 10 may be directly attached to the recessed portion 50a, the seating sensor 10 in this embodiment is fixed to the mounting bracket 11, and the mounting bracket 11 to which the seating sensor 10 is fixed is arranged in the recessed portion 50a. It is like this.
When the occupant sits on the vehicle seat, the occupant's load is applied to the seating sensor 10 via the cushion pad. At that time, if the seating sensor 10 is attached to the recessed portion 50a via the mounting bracket 11, the mounting bracket 11 absorbs a part of the load of the occupant when the seating sensor 10 is applied to the recessed portion 50a. The influence of the load of the occupant on the seating sensor 10 is reduced as compared with the case where the occupant is directly attached to the concave portion 50a.

When a so-called S spring frame is adopted as the pressure receiving member instead of the first pan frame 50, although not shown, a bracket member that forms the concave portion 50a is bridged between the S spring frames, and the bracket is formed. The seating sensor 10 is fixed on the member.
Further, when the S spring frame is adopted as the pressure receiving member, this S spring frame is also provided with the above-mentioned hooks 52a to 52c and 53a to 53c at the rear end portion and the front end portion similarly to the first pan frame 50. It is assumed that

As shown in FIGS. 1 to 4, the seating sensor 10 is flat among harnesses 13 (also referred to as wire harnesses and cable harnesses) that electrically connect the seating sensor 10 and a control device 12 (described later). The flat cable 15a formed in is connected.
The flat cable 15a is a cable integrally connected to a first sub-cable 15 to be described later, and is passed through one of the openings 50b among the openings 50b formed on both sides of the concave portion 50a, The wiring is provided on the back side (lower side) of the first bread frame 50. In the present embodiment, the flat cable 15a is passed through the left opening 50b.

Subsequently, the second pan frame 60 is located on the front side of the first pan frame 50, and is located below the thighs of the occupant when sitting in the normal driving position.
The second pan frame 60 is in a state in which the left and right side ends are attached and bridged over the pair of left and right cushion side frames 2 and 3.
Most of the second pan frame 60 is located in front of the front pipe frame 5.

The second pan frame 60 is integrally formed as a whole, and has a bottom surface portion 61 that receives a cushion pad, a front end portion 62 that is located in front of the bottom surface portion 61 and forms a front edge of the cushion frame 1, and a bottom surface portion 61. And a pair of left and right cushion side frames 2 and 3, which are located on both left and right sides of the cushion frame 1, and left and right side end portions 63 and 64 that form left and right side edges of the cushion frame 1.

The bottom surface portion 61 is recessed downward with respect to the front end portion 62 and the left and right side end portions 63, 64, and behind the front end portion 62 and the front hooks hooked on the front pipe frame 5. 53a-53c are located.
Further, as shown in FIG. 6, the lower surface of the bottom surface portion 61 of the second bread frame 60 is formed with a recessed portion 61a that is recessed upward. As shown in FIG. 1, this concave portion 61a is recognized as a convex portion when viewed from above.
Further, the concave portion 61a (convex portion) is formed from the left end portion to the right end portion of the bottom surface portion 61. As shown in FIG. 4, the harness 13 described later is wired in the recess 61a.

The front end portion 62 and the left and right side end portions 63, 64 are integrally formed so as to be gently curved, and the rear end portions of the left and right side end portions 63, 64 are, as shown in FIG. It is located behind 5.
The left and right side end portions 63, 64 are placed so as to cover the front end portions of the pair of left and right cushion side frames 2, 3 from above and are integrally joined.

Then, on the lower surface of the second pan frame 60, the control device 12 that controls the operation of the electrical components mounted on the vehicle seat is provided.
The control device 12 is a so-called ECU (Electric Control Unit) device, and includes, for example, a power supply device, a signal processing device from a seating sensor 10 described later, and electrical components (motor, sensor, blower) installed in a vehicle seat. Etc.).
The control device 12 is provided on the back surface (lower surface) of the cushion frame 1 together with a harness 13 described later, and is also connected to a harness or a cable other than the harness 13.

The control device 12 is formed in a rectangular parallelepiped shape, and includes a main body portion 12a whose upper surface contacts the lower surface of the second pan frame 60, and a lid portion 12b which is attached to the main body portion 12a and shields the inside. The main body portion 12a of the control device 12 is arranged and fixed to the lower surface of the second pan frame 60 across the recess 61a.
Further, the rear side surface 12c of the control device 12 is arranged so as to be parallel to a straight portion of the front pipe frame 5 excluding the curved right end portion 5a.

The arrangement of the control device 12 will be described in more detail. The control device 12 is arranged on one side (right side) in the left-right direction on the back surface of the second pan frame 60 in the cushion frame 1.
Further, the control device 12 and the third front hook 53c of the first pan frame 50 are arranged adjacent to each other in the front-rear direction. The front side surface of the third front hook 53c and the rear side surface 12c of the control device 12 face each other. That is, the control device 12 is placed in front of the third front hook 53c of the first pan frame 50. The left and right width dimensions of the rear side surface 12c of the controller 12 are set to be longer than the left and right width dimensions of the third front hook 53c.
Furthermore, the lower surface of the control device 12 (that is, the surface of the lid portion 12b facing downward) is located below the third front hook 53c, as shown in FIG. The vertical dimension of the rear side surface 12c of the control device 12 is preferably set longer than the vertical dimension of the third front hook 53c.

The curved right end portion 5 a of the front pipe frame 5 is in a state of facing the right side surface of the control device 12. That is, as shown in FIGS. 3 to 5, the control device 12 is arranged closer to the seat center side than the curved right end portion 5a, and further, the front pipe frame 5 located rearward of the control device 12 is The right end 5a is bent once from the rear side to the front side, and is further bent rightward at the tip.

A harness 13 (main cable 14) is connected to the control device 12 as described above.
The harness 13 includes a main cable 14 and a first sub cable 15 and a second sub cable 16 branching from the main cable 14.
Such a harness 13 is arranged on the back side (lower side) of the first pan frame 50 and the second pan frame 60, except for the flat cable 15a.

As shown in FIG. 3, the main cable 14 is connected to the control device 12, and has a branch portion 14a on the side opposite to the side connected to the control device 12.
The branch portion 14a is arranged at a point separated laterally of the seating sensor 10. The point refers to a peripheral region of a portion of the back surface of the first bread frame 50, which is separated laterally (to the left in the present embodiment) of the concave portion 50a.
The main cable 14 is fixed by the clip member 20 at a point (hereinafter, point P) separated laterally from the seating sensor 10, and the branch portion 14a is also arranged at the point P.

The first sub-cable 15 is a cable that extends by branching from the second sub-cable 16 at the branching portion 14a, and the flat cable 15a connected to the seating sensor 10 is integrated at the end portion on the side close to the seating sensor 10. And a connector 15b for connecting the one round cable and the other round cable in the middle of the first sub-cable 15.

The second sub cable 16 is a cable that extends by branching from the first sub cable 15 at the branch portion 14a, is arranged along the width direction of the seat cushion, and is connected to another cable via a connector.

The clip members 20 and 30 are appropriately used to fix the main cable 14 and the first sub cable 15 of the harness 13 to the first pan frame 50 and the second pan frame 60. Therefore, the first pan frame 50 and the second pan frame 60 are provided with a plurality of mounting holes in which the clip members 20 and 30 are mounted and locked.

In addition, the first sub-cable 15 and the second sub-cable 16 that form the harness 13 and other cables are routed in the left-right direction of the second pan frame 60 as shown in FIG. It is arranged on the other side (left) in the left-right direction on the back surface of 50. The cables (various cables including the main cable 14) connected to one side (right side) in the left-right direction are routed so as to face the other side (left).
That is, on the back surface of the second pan frame 60 in the cushion frame 1, the control device 12 is arranged on one side in the left-right direction, and the harness 13 (14 to 16) and other cables (branch portion 14a, etc.) on the other side. (Including) are arranged collectively. Then, the seating sensor 10 is in a state of being provided between the control device 12 and the harnesses 13 and the like that are collectively arranged. This makes it possible to avoid interference between the control device 12 and the harness 13 or the like.

The seat cushion in the vehicle seat configured as described above is arranged above the floor panel with a gap therebetween, as described above. Further, since slide rails 6 and 7 for supporting the seat cushion are provided at the left and right ends of the seat cushion, tools used when performing human hands and fingers, maintenance work, etc., are seat cushions. It will be inserted toward the gap from the front or the rear.
Further, the back pipe frame 4 to which the rear end portion 51a of the first pan frame 50 is attached has a state in which the rear end portions of the pair of left and right cushion side frames 2 and 3 are curved upward as described above. And accordingly, it is located above the front pipe frame 5.
Therefore, rather than the attachment portion (rear end portion 51a: each rear hook 52a to 52c) of the first pan frame 50 to the back pipe frame 4, the attachment portion of the first pan frame 50 to the front pipe frame 5 (front end portion 51b: each). The front hooks 53a to 53c) are in a situation in which a person's hand/finger or tool is more likely to come into contact.

Based on such a state, at least one front hook (the third front hook 53c in the present embodiment is selected from the first front hook 53a, the second front hook 53b, and the third front hook 53c hooked on the front pipe frame 5. ) Is arranged in front of the control device 12. As a result, even if the occupant's hands or fingers are inserted from the front into the gap formed between the seat cushion and the floor panel, or a tool is inserted at the time of maintenance, the installation site (third part) to be protected is protected. It comes into contact with the control device 12 before the front hook 53c).
In the present embodiment, the control device 12 is arranged in front of the third front hook 53c on the right side in consideration of the arrangement of various cables connected to the seating sensor 10, but the first front hook on the left side is arranged. It may be arranged in front of 53a or the second front hook 53b in the middle.

According to the present embodiment, the attachment portion (third front side hook 53c) of the first pan frame 50 to the front pipe frame 5 is protected, and the attachment portion 53c and the control device 12 are arranged adjacent to each other in the front-rear direction. Since the control device 12 serves as a barrier against the hands/fingers and objects that have entered through the gap, and makes it difficult to access the attachment site (third front hook 53c) that is the object of protection, the lower surface of the seat cushion Even if the entire surface is not covered with the epidermis, it becomes easy to protect the part to be protected (the third front side hook 53c). As a result, it is possible to suppress the occurrence of a situation in which the first pan frame 50 comes off the front pipe frame 5.

Further, since the lower surface of the control device 12 is located below the third front hook 53c, which is the attachment site, the control device 12 easily becomes a barrier against the hand/fingers or objects that have entered through the gap, and is protected. It becomes more difficult to access the third front hook 53c, which is the attachment site of.
That is, the hands/fingers and tools that have entered through the gap cannot contact the third front hook 53c on the rear side unless the control device 12 protruding downward is passed.

Further, since the curved right end 5a of the front pipe frame 5 faces the side surface of the control device 12, the curved right end 5a allows access to the third front hook 53c, which is the attachment site of the protection target. Becomes more difficult.

Further, since the control device 12 is disposed closer to the seat center side than the curved right end portion, for example, the hands and fingers of the occupant are laterally placed in the gap formed between the seat cushion and the floor panel. Even if it is inserted or a tool is inserted at the time of maintenance, the curved right end portion makes it more difficult to access the third front hook 53c that is the attachment portion to be protected.

Further, since the front side surface of the third front side hook 53c that is the mounting portion and the rear side surface 12c of the control device 12 face each other, the control device 12 causes the front side surface of the third front side hook 53c that is the mounting portion to be protected. Access to it becomes difficult.

Further, since the control device 12 is arranged and fixed to the lower surface of the second pan frame 60 across the recess 61a, the rigidity of the second pan frame 60 can be improved by the recess 61a. Since the control device 12 can be provided in the portion where the height is improved, the fixed state of the control device 12 with respect to the second pan frame 60 can be made stable and strong.

The seat cushion includes a cushion frame 1, a cushion pad provided on the upper surfaces of the first pan frame 50 and the second pan frame 60 in the cushion frame 1, and peripheral portions of the first pan frame 50 and the second pan frame 60. And the outer skin covering the cushion pad, the outer skin covers the cushion pad from the peripheral portions of the first pan frame 50 and the second pan frame 60, and does not cover the entire lower surface of the seat cushion. Maintenance work of the control device 12 is easy to perform.

1 Cushion Frame 2 Cushion Side Frame 3 Cushion Side Frame 4 Back Pipe Frame 5 Front Pipe Frame 5a Right End 50 First Pan Frame 51 Bottom 51a Rear End 51b Front End 51c Side End 52a First Rear Hook 52b Second Rear hook 52c Third rear hook 53a First front hook 53b Second front hook 53c Third front hook 60 Second pan frame 61 Bottom surface 61a Recess 62 Front end 63 Left end 64 Right end 6 Slide rail 7 Slide Rail 8 Back frame 10 Seating sensor 12 Controller 12a Main body 12b Lid 12c Rear side 13 Harness L Operating lever

Claims (7)

A vehicle seat having a cushion frame that forms the skeleton of a seat cushion,
The cushion frame is
A first pan frame that is located on the rear side of the cushion frame and receives the load of an occupant,
A second pan frame located on the front side of the first pan frame and receiving a load of an occupant,
Positioned between the first pan frame and the second pan frame, and has a front frame to which the front end of the first pan frame is attached,
On the lower surface of the second pan frame, a control device for controlling the operation of the electrical components mounted on the vehicle seat is provided,
A vehicle seat characterized in that a mounting portion of the first pan frame with respect to the front frame is a protection target, and the mounting portion and the control device are arranged adjacent to each other in the front-rear direction. The vehicle seat according to claim 1, wherein a lower surface of the control device is located below the mounting portion. The side end portion of the front frame is formed to be curved,
The vehicle seat according to claim 1 or 2, wherein the curved side end portion faces a side surface of the control device. The vehicle seat according to claim 3, wherein the control device is disposed closer to a seat center side than the curved side end portion. The vehicle seat according to any one of claims 1 to 4, wherein a front side surface of the attachment portion and a rear side surface of the control device face each other. On the lower surface of the second bread frame, a concave portion that is recessed upward of the second bread frame is formed,
The vehicle seat according to any one of claims 1 to 5, wherein the control device is arranged and fixed on the lower surface of the second pan frame across the recess. The seat cushion is
The cushion frame,
A cushion pad provided on the upper surfaces of the first pan frame and the second pan frame in the cushion frame,
The vehicle seat according to any one of claims 1 to 6, further comprising: a skin that covers the cushion pad from a peripheral portion of the first pan frame and the second pan frame.

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