JP4580672B2 - Vehicle seat and connection structure - Google Patents

Description

The present invention relates to a vehicle seat having an air conditioning function and a connection structure used therefor .

  2. Description of the Related Art In recent years, a vehicle seat having an air conditioning function in which a plurality of ejection holes are provided in a seat cushion of a vehicle seat and a skin of a seat back and air from a blower unit is ejected from the ejection holes is known (for example, Patent Document 1). reference.).

The vehicle seat disclosed in Patent Document 1 is provided with a plurality of air holes so as to penetrate the skin, cover pad, and pad constituting the seat cushion and the seat back, and a blower, an intermediate duct, and a seat cushion exhaust on the lower surface of the seat cushion. A duct is arranged, and a seat back exhaust duct is arranged on the back surface of the seat back so as to be schematically configured.
The seat cushion exhaust duct and the seat back exhaust duct are formed with a plurality of air exhaust holes that are slightly protruded from the surface so as to fit inside the vent hole, and the air from the blower is passed through the intermediate duct to the seat. The air is sent to the cushion exhaust duct and the seat back exhaust duct, and air is ejected to the seat surface from the vent hole connected to the air exhaust hole.
JP-A-10-297274

  However, the vehicle seat disclosed in Patent Document 1 has a structure in which the air discharge hole is fitted inside the vent hole by making the outer diameter of the air discharge hole substantially coincide with the inner diameter of the vent hole. For example, when the seat cushion and the seat back are deformed due to the weight of the occupant when seated, the air discharge hole slides in the ventilation hole. There was a possibility that the discharge hole might come off from the vent hole.

An object of the present invention is to provide a vehicle seat having an air-conditioning function and a connection structure used therefor, which allow for stable air ejection, in consideration of the above-described problems.

In order to solve the above problems, the invention according to claim 1 is directed to a seat cushion and a seat back configured by covering a surface of a seat pad with a skin material, and a surface of the seat pad from a back surface of the seat pad. A plurality of ventilation holes penetrating through the seat pad, a duct disposed on the back side of the seat pad, a cylindrical insert member fitted into the opening of the ventilation hole on the back side of the seat pad, Protruding portions that are provided in the insert member so as to protrude in the radial direction of the insert member from the protruding end portion of the surface of the seat pad of the insert member, and are embedded in the seat pad from the vent hole, Projects from the duct and is inserted into the insert member from the back side of the seat pad and fits into the insert member A plurality of air discharge ports, a locking portion provided in the air discharge port so as to protrude in a radial direction of the air discharge port from a protruding end of the air discharge port, the duct and the air discharge port And a blower that pressure-feeds the air in the passenger compartment to the vent hole.

According to the first aspect of the present invention, since the locking portion protruding in the radial direction of the air discharge port is provided at the protruding end of the air discharge port, for example, in a state where the air discharge port is inserted into the vent hole, The air discharge port is fixed to the seat cushion and the seat back by causing the engaging portion to bite into the inner peripheral surface of the vent hole.For example, even when the seat cushion and the seat back are deformed due to the weight of the occupant during sitting The air discharge port is not detached from the vent hole, and stable air ejection can be performed.
By using the insert member, the air discharge port can be more firmly fixed to the seat cushion and the seat back.

According to a second aspect of the present invention, in the vehicle seat according to the first aspect, the insert member is fixed inside the vent hole by molding the seat pad.

According to a third aspect of the present invention, in the vehicle seat according to the first or second aspect, the protruding end of the air discharge port protrudes from the insert member into the vent hole, and the locking portion is the insert member. The seat pad is locked to a protruding end portion on the surface side of the seat pad.

According to a fourth aspect of the present invention, there is provided an air hole formed in a seat pad of a vehicle seat and opened on a back surface side of the seat pad, and air projecting from a duct disposed on the back surface side of the seat pad. A connection structure with the discharge port, wherein a locking portion is provided in the air discharge port so as to protrude in a radial direction of the air discharge port from a protruding end of the air discharge port, and a cylindrical insert member is provided in the sheet The air exhaust port is fitted into the opening of the vent hole on the back surface side of the pad, the air discharge port is inserted into the insert member from the back surface side of the seat pad, and the protruding portion is inserted into the insert member. The insert member is provided in the insert member so as to protrude in a radial direction of the insert member from a protruding end portion of the seat pad on the front surface side, and the seat is inserted from the vent hole. Characterized in that it is embedded in the pad.

  ADVANTAGE OF THE INVENTION According to this invention, the vehicle seat which has an air-conditioning function which enabled stable air ejection can be obtained.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the vehicle seat 10 includes a seat cushion 20, a seat back 30, a headrest 40 provided on the upper portion of the seat back 30, and the like. As shown in FIG. The surface of the pad 31 that retains the sheet shape and functions as a cushioning material is covered with a cover pad 32 having air permeability, and the surface of the cover pad 32 is further covered with a skin material 33. FIG. 2 shows the seat back 30, but the seat cushion 20 is similarly configured to cover the surface of the pad 31 with the cover pad 32 and the skin material 33. In the following description, the pad 31 and the cover pad 32 are collectively referred to as “seat pad 34”.

As shown in FIG. 1, a plurality of vent holes 33a are formed on the surface of the skin material 33. As shown in FIG. 3, a cylindrical insert member 35 is embedded in the vent hole 33a. .
The insert member 35 is fixed inside the vent hole 33a by foam-molding the seat pad 34 in a state where the insert member 35 is previously disposed at a predetermined position in the seat pad molding die.

FIG. 4 is a perspective view showing a skeletal structure of the vehicle seat 10 on the seat cushion 20 side, and FIG. 5 is a perspective view of the skeleton structure seen from the lower surface side.
The skeletal structure on the seat cushion 20 side is roughly composed of a pair of left and right seat rails 21, a pair of left and right seat frames 22 attached to the seat rail 21, a seat spring 23, a pan frame 24 spanning the front portion of the seat frame 22, and the like. It is configured.

As shown in FIG. 5, one blowing device 50 for the seat cushion 20 is attached to the front and center of the lower surface of the pan frame 24.
As shown in FIG. 4, the duct 60 connected to the blower opening of the front blower device 50 reaches the upper surface of the pan frame 24 and branches into the left and right directions as shown in FIG. 4. 24 The upper surface extends backward.

Further, as shown in FIGS. 5 and 6, the duct 60 connected to the air outlet of the rear air blower 50 extends rearward on the lower surface side of the pan frame 24 and branches in two left and right directions.
As shown in FIG. 3, a plurality of cylindrical air discharge ports 61 are provided on the upper surface of each duct 60 at positions corresponding to the plurality of vent holes 33a so as to protrude upward. A claw-shaped locking portion 62 protruding in the radial direction is formed at the protruding end of 61.

  FIG. 6 is a rear view of the seat back 30, and the seat back 30 is roughly composed of a sub seat frame 31 having an opening 31 a in the center, a seat spring (not shown) attached to the sub seat frame 31, and the like. .

The air blower 50 for the seat pack is attached below either the left or right side of the back surface of the sub seat frame 31.
The duct 60 connected to the blower opening of the blower 50 extends upward from two left and right positions in the opening 31a of the sub seat frame 31, and has a bellows structure 70 at each right and left position.
Similar to the seat cushion 20 side, a plurality of cylindrical air discharge ports 61 protrude upward and are provided on the front surface of the duct 60 at positions corresponding to the plurality of vent holes 33a. A locking portion 62 protruding in the radial direction is formed at the protruding end of the outlet 61.

  As shown in FIG. 3, the air discharge ports 61 on the seat cushion 20 side and the seat back 30 side are both designed so that the axial length thereof is slightly longer than the axial length of the insert member 35. The locking portion 62 of the air discharge port 61 inserted into the insert member 35 is locked to the projecting end portion of the insert member 35, so that the air discharge port 61 is fixed to the insert member 35, and as a result, the seat cushion 20 and the seat It is fixed to the back 30.

As described above, according to the vehicle seat 10 according to the present embodiment, the air discharge port 61 protruding from the duct 60 is engaged with the insert member 35 embedded in the air hole 33a via the locking portion 62. For example, even when the seat cushion 20 and the seat back 30 are deformed due to the weight of the occupant when sitting, the air discharge port 61 does not come off from the vent hole 33a, and stable air ejection can be performed. It becomes.
Further, by providing the bellows structure 70 in the duct 60 on the seat pack side, the duct 60 can be flexibly adapted to the deformation of the seat back 30, so that the air discharge port 61 is less likely to be detached from the vent hole 33a. be able to.

  In the present embodiment, only one bellows structure 70 is provided between two air discharge ports 61 that are continuous in the vertical direction, but two bellows structures 70 are provided between the two air discharge ports 61. More preferably provided. When there are two or more bellows structures 70 between the two air discharge ports 61, even if an external force acts on the duct 60 as the seat back 30 is deformed and the relative position of the two air discharge ports 61 changes, Only the portion sandwiched between the two bellows structures of the duct 60 can be inclined to absorb this change in position, and the air discharge port 61 can be more difficult to be removed from the vent hole 33a.

  Further, in the present embodiment, the insert member 35 is embedded inside the vent hole 33a, and the locking portion 62 of the air discharge port 61 is locked to the insert member 35. By inserting the claw-shaped locking portion 62 into the inner peripheral surface of the vent hole 33a without inserting the insert member 35 inside the vent hole 33a and inserting the air discharge port 61 into the vent hole 33a, the air The discharge port 61 may be fixed to the seat cushion 20 and the seat back 30.

It is a perspective view which shows the external shape of the vehicle seat. It is a principal part longitudinal cross-sectional view which shows the structure of a seat back. It is a principal part cross-sectional view which shows the joining structure of a vent hole and an air discharge port. It is a perspective view which shows the frame | skeleton structure by the side of the seat cushion of a vehicle seat. It is a perspective view which shows the frame | skeleton structure by the side of the seat cushion of a vehicle seat. It is a perspective view which shows the frame structure by the side of the seat back of a vehicle seat.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle seat 20 Seat cushion 30 Seat back 32 Cover pad 33 Skin material 33a Ventilation hole 34 Seat pad 35 Insert member 40 Headrest 50 Blower 60 Duct 61 Air discharge port 62 Locking part 70 Bellows structure

Claims (4)

A seat cushion and a seat back configured by covering the surface of the seat pad with a skin material,
A plurality of air holes penetrating the seat pad from the back surface of the seat pad to the surface of the seat pad;
A duct disposed on the back side of the seat pad;
A cylindrical insert member fitted into the opening of the vent on the back side of the seat pad;
Protruding portions that are provided in the insert member so as to protrude in the radial direction of the insert member from the protruding end portion of the surface of the seat pad of the insert member, and are embedded in the seat pad from the vent hole,
A plurality of air outlets protruding from the duct and inserted into the insert member from the back side of the seat pad and fitted to the insert member;
A locking portion provided at the air discharge port so as to protrude in a radial direction of the air discharge port from a protruding end of the air discharge port;
A vehicle seat comprising: a blower that pumps air in a vehicle compartment to the vent through the duct and the air discharge port. The vehicle seat according to claim 1, wherein the insert member is fixed inside the vent hole by molding the seat pad. The protruding end of the air discharge port protrudes from the insert member into the vent hole,
The vehicle seat according to claim 1, wherein the locking portion is locked to a protruding end portion of the surface of the seat pad of the insert member . A connection structure between a vent hole formed in a seat pad of a vehicle seat and opened on the back side of the seat pad and an air discharge port protruding from a duct arranged on the back side of the seat pad. ,
A locking portion is provided in the air discharge port so as to protrude in a radial direction of the air discharge port from a protruding end of the air discharge port,
A cylindrical insert member is fitted into the opening of the vent hole on the back side of the seat pad,
The air discharge port is inserted into the insert member from the back side of the seat pad and is fitted to the insert member,
A projecting portion is provided on the insert member so as to project in a radial direction of the insert member from a projecting end portion on the surface side of the seat pad of the insert member, and is embedded in the seat pad from the vent hole. A connection structure characterized by that.

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