JP6519367B2 - Vehicle seat blower - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a blower for a passenger seat mounted on a vehicle such as an automobile, an airplane, a ship, and a train.

  Air may be forced to flow on the seating surface of a seat cushion or seat back in a vehicle seat to perform ventilation or air conditioning of the environment surrounding the occupant (see Patent Document 1 below). In the blowing device for a vehicle seat according to the present invention, in order to secure a wide blowing range on the occupant seating surface side, the blowing passage extends in a direction along the seating surface within a pad material that is a cushioning material of the seat. Has been formed. Further, a second air passage for feeding air into the first air passage via the air blower and discharging air from the first air passage via the air blower is along the seating surface in the same manner as the first air passage. Some are formed.

JP, 2008-307182, A

  In the case of the pad material in which the first and second air passages are formed along the seating surface as described above, the volume of the entire air passage disposed in the pad material increases, and the pad material supports the load from the occupant There is a problem that the seating comfort of the seat is deteriorated due to lack of supporting strength of the seat.

  10 and 11 show a conventional example of a blower installed on a seat cushion. In this conventional example, the blower B is installed in the cushion pad A, and a plurality of the blowers B are made to suck air from the opening E opened on the sheet surface on the surface side of the cushion pad A from the blower B An intake passage (corresponding to the first air passage) C is formed. Further, on the back surface side of the cushion pad A from the fan B, an exhaust path (corresponding to the second air path) D for exhausting the air discharged from the fan B to the rear portion of the seat is formed. The intake passage C and the exhaust passage D can not be disposed so as to overlap the intake passage C and the exhaust passage D in plan view due to the thickness of the cushion pad A, and a large number of intake passages are provided around the blower B. C and exhaust path D will be arranged. Therefore, the strength of the cushion pad A around the blower B will be insufficient.

  In view of such problems, the object of the present invention is to provide a first air flow passage on one side and a second air flow passage on the other side by air flow of the air blower, with both air flow passages on the seating surface In the vehicle seat air blower provided along the seat, the layers forming the first and second air passages in the seat cushion or seat back are divided into two layers along the seating surface and compared to the seating surface side layer By forming the non-seating surface side layer to be high in strength, the strength of the layers forming the first and second air passages can be enhanced without sacrificing the cushioning property of the seat cushion or the seat back, and the first and second An object of the present invention is to suppress the insufficient strength of the layers forming the first and second air passages even if the air passages have a large volume, and to improve the problem of deterioration in seat comfort.

According to a first aspect of the present invention, a fan is provided with a first air flow path on one side and a second air flow path on the other side by air flow of the air fan, and both air paths are a seat cushion or seatback in a vehicle seat. A blower for a vehicle seat which is provided along a seating surface and generates a flow of air on the seating surface by the blower to ventilate or air-condition the environment surrounding the occupant, wherein the air conditioner is a seat cushion or seat back The layer forming the first and second air passages is divided into two layers along the seating surface, and the non-seating surface side layer has a higher strength than the seating surface side layer and is formed on the seating surface side layer The first air flow path and the second air flow path formed in the non-seating surface side layer are formed with the opposing side of each layer open , and the first air flow path formed in the seating surface side layer, and the non-seating side Each layer of the second air passage formed in the surface side layer In the region facing in overlapping direction, flow of air between the first and second air passage is blocked.

  According to the first aspect of the present invention, the non-seating surface side layer is configured to have higher strength than the seating surface side layer. Therefore, the cushioning property of the seat cushion or the seat back is secured by the seating surface side layer, and the shape holding function of the first air blowing passage or the second air blowing passage formed in the non-seating surface side layer is enhanced. As a result, the volume of the first air passage or the second air passage formed in the seating surface side layer is reduced by the amount that the first air passage or the second air passage is formed in the non-seating surface side layer. The insufficient strength of the layer forming the second air passage can be suppressed, and the problem of deterioration of the seat comfort can be improved.

  Moreover, since the opposing side of each layer is open | released and the 1st and 2nd ventilation path is formed, the 1st and 2nd ventilation path can be easily formed integrally to each layer. That is, in the case where each air duct is embedded in each layer, it is necessary to divide and form each layer at a position passing through each air duct and then integrally connect them, but in the case of the first invention Such an effort can be eliminated. Moreover, even if the first and second air passages are formed open on the opposite side of each layer, the flow of air between the first and second air passages is blocked, so the first and second air passages can be prevented. The paths can be made to function independently of one another.

  According to a second aspect of the present invention, in the first aspect, the seating surface side layer is a pad material provided with a cushioning property for enhancing a seating feeling, and the non-seating surface side layer has a strength for supporting an occupant. Metal plate.

  According to the second aspect of the invention, since the seating surface-side layer is a pad material having a cushioning property, the cushioning property of the seat cushion or the seat back is secured. Moreover, since the non-seating surface side layer is a metal plate, the strength of the layers forming the first and second air passages can be enhanced. Moreover, the non-seating surface side layer can be functioned as a frame member in a seat cushion or a seat back.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, air is forcibly forced between the second air passage and the second air passage at a position connected to the first air passage on the opposite seating surface side of the seating surface side layer. A blower is provided for feeding, the blower being supported on a support plate and adapted to send air between each side of the support plate, and the support plate being opposite the end of the first air passage. An annular passage is formed on the opposite side of the seating surface to cover the seat from the seating surface side, and an annular space is formed around the blower by an annular space, and the non-seating surface side layer is connected to the annular passage. A second air passage is formed.

  According to the third aspect of the invention, the first air passage and the second air passage are separated by the support plate of the blower. Therefore, even if the first air passage and the second air passage are not formed independently of each other at the installation site of the blower, they can function independently of each other by the support plate. As a result, at the fan installation site, the number of the first and second air ducts distributed and arranged is suppressed to suppress the insufficient strength of the layers forming the first and second air ducts, and the seating comfort of the sheet is deteriorated. Can improve the problem.

  Further, since the annular passage of the support plate is in communication with the second air passage, it functions as a second air passage. Therefore, the second air passage formed in the layer forming the first and second air passages can be reduced by the amount of the annular passage, and the strength of the layer forming the first and second air passages at the fan installation site is It is possible to improve the problems that are lacking.

  In a fourth invention according to any one of the first to third inventions, first and second air passages are formed in the seating surface side layer, and a second air passage is formed in the non-seating surface side layer. The second air flow passage of the seating surface side layer and the second air flow passage of the non-seating surface side layer are disposed to face each other.

  According to the fourth aspect of the present invention, since the second air passage is formed in both the seating surface side layer and the non-seating surface side layer and they are disposed to face each other, the passage area of the second air passage is increased. And the flow resistance of the second air passage can be reduced. In other words, it is not necessary to increase the passage area of the second air flow passage of the seating surface side layer in order to increase the passage area, and the strength of the seating surface side layer is secured and the strength of the seating surface side layer decreases. It is possible to suppress the deterioration of the ride quality of the seat.

BRIEF DESCRIPTION OF THE DRAWINGS It is a partially broken side view of the passenger car carrying the sheet | seat for motor vehicles which is one Embodiment of this invention. It is a side view of the principal part in the above-mentioned embodiment. It is a top view of the principal part in the above-mentioned embodiment. It is the IV-IV line cross section arrow line view of FIG. FIG. 5 is a sectional view taken along the line V-V in FIG. 3; It is the VI-VI line cross section arrow line view of FIG. It is an exploded perspective view of a cushion pad in the above-mentioned embodiment, and a support plate of a fan. It is an assembly perspective view of a cushion pad and a support plate of a fan in the above-mentioned embodiment. It is a perspective view of the cushion panel in the said embodiment. It is a side view corresponding to FIG. 2 which shows the prior art example of this invention. It is a top view corresponding to Drawing 3 of the above-mentioned conventional example.

  FIG. 1 shows a passenger car equipped with a rear seat for an automobile (hereinafter, also simply referred to as a seat) 2 to which an embodiment of the present invention is applied. In this case, a front seat 1 and a rear seat 2 are mounted on the front and rear sides of the passenger car, and the rear seat 2 is mounted on the front side of a trunk room 3 disposed on the rear of the passenger car. In FIG. 1 and other drawings, arrows indicate the directions of the respective seats 1 and 2 mounted on a passenger car. In the following description, the description of the direction will be made based on this direction.

  The rear seat 2 includes a seat cushion 21 constituting a seat and a seat back 22 constituting a backrest. The seat cushion 21 is mounted on a cushion panel 42 constituted by a part of the floor panel 4 of a passenger car. Therefore, the cushion panel 42 is made of steel plate and functions as a frame member of the seat cushion 21.

  The front of the cushion panel 42 is raised by the vertical wall 41 to secure an appropriate height from the floor surface of the passenger car, and the space behind the cushion panel 42 is in the trunk room 3 through the gap on the back side of the seatback 22. It is in communication.

  In the seat cushion 21, the surface layer pad 212 is placed on a cushion pad (corresponding to the “layer that forms the first and second air passages” and the “seating surface side layer” in the present invention) 211. However, the seat cover is covered. The seat cushion 21 is provided with the air blower of the present invention, and the cushion pad 211 is formed of a pad material having a cushioning property made of urethane foam to improve the feeling of seating, as described later. A first air passage and a second air passage for blowing air are formed. The air blower in this case is configured to suck the air on the surface side of the seat cushion 21 and exhaust the air from the rear of the seat cushion 21 to the trunk room 3.

  The surface layer pad 212 is provided with a diffusion passage (not shown) for widely diffusing the air drawn into the first and second air passages of the cushion pad 211 on the surface of the seat cushion 21. By providing the surface pad 212, the air drawn on the surface of the seat cushion 21 is not concentrated locally and spread widely.

  Here, although the air blower of the present invention is provided only for the seat cushion 21 of the rear seat 2, the same air blower may be provided for the seat back 22 of the rear seat 2, the seat cushion 11 of the front seat 1, and the seat back 12. Good. Further, the air flow of the blower may be such that the air is blown to the surface side of the seat cushion 21. Furthermore, in the case where the blower is of a type that blows air to the surface side of the seat cushion 21, the air in the passenger compartment is not circulated as it is, and appropriate in the first or second air passage of the cushion pad 211. A heat exchanger may be installed to allow the blower to have an air conditioning function.

  FIGS. 2-9 show details of the first air passage 211a and the second air passages 211c, 42a formed on the surface of the cushion pad 211 and the cushion panel 42. FIG.

  A plurality (10 in the first embodiment) of through holes 211 b are formed through the cushion pad 211 in the up-down direction in the occupant seating portion at the front center portion of the cushion pad 211. The respective through holes 211 b are disposed substantially uniformly and distributed in the occupant seating portion at the front central portion of the cushion pad 211, and the plurality of first through holes 211 b communicate with one another in the direction along the surface of the cushion pad 211. The air flow path 211a is formed. The first air passages 211a are collected such that one end thereof communicates with the communication passage 211d at the front center of the cushion pad 211, and the other end is communicated with the through holes 211b.

  In other words, each first air flow passage 211a is branched into four (four directions) in the communication passage 211d, and the front two of them are further branched into two in the communication portion with the respective through holes 211b. ing. Further, of the first air passages 211a branched into four in the communication passage 211d, two on the rear side are communicated so as to connect two through holes 211b.

  The lower surface side of the cushion pad 211 is open, and each 1st ventilation path 211a and the communication path 211d are formed. Further, among the through holes 211b communicated with the first air flow paths 211a, the first air flow paths 211a and the communication paths 211d on the communication path 211d side with respect to the through holes 211b closer to the communication path 211d It is formed in 211e. The depressed portion 211e is formed by cutting the cushion pad 211 from the lower surface side to the upper surface side by about a third and having a substantially rectangular shape in a plan view.

  The support plate 24 of the blower 23 is fitted into the recess 211e. The support plate 24 is made of hard foam polystyrene and has a shape and a size which are fitted into the recessed portion 211e. A communication port (not shown) is formed in the support plate 24 corresponding to the communication path 211d, and the blower 23 is attached so that the air of the communication path 211d can be sucked into the lower surface side of the cushion pad 211 through the communication port. . A dam portion 24c is formed around the lower surface side of the support plate 24. As a result, an annular passage 24a is formed inside the dam portion 24c and outside the blower 23.

  As shown in FIGS. 3 and 8, in each of the first air passages 211a, a sealing material 25 made of felt for suppressing air leakage is adhered and adhered to the area excluding the area covered with the support plate 24. . The sealing material 25 may be put on all the first air passages 211 a including the first air passages 211 a in the area covered by the support plate 24.

  On the other hand, as shown in FIGS. 2, 3 and 9, two second air passages 42a are formed on the surface of the cushion panel 42 with the upper surface (surface) side being open. Each second air flow passage 42 a is press-formed by a press die when forming the cushion panel 42. When the cushion pad 211 is placed on the surface of the cushion panel 42, the front end portions 42b of the second air passages 42a are formed adjacent to each other at positions corresponding to the depressions 211e. The rear end 42c of each of the second air passages 42a is at a position along the left and right ends of the cushion pad 211 when the cushion pad 211 is placed on the surface of the cushion panel 42, and It is formed to be opened rearward at a position corresponding to the rear end. Accordingly, the respective second air flow paths 42a are formed close to each other at the front end 42b and separated from each other at the rear end 42c. In addition, on the rear side of the middle position 42 d of the front and rear end portions, it is formed along the left and right side end portions of the cushion pad 211 placed on the surface of the cushion panel 42. Further, on the front side of the middle position 42d of the front and rear end portions, the front end portion 42b is formed so as to be substantially linearly connected.

  Also, as shown in FIGS. 2, 3, 7, 8, when the cushion pad 211 is placed on the surface of the cushion panel 42 on the lower surface side of the cushion pad 211, from the middle position 42d of each second air passage 42a. Two second air passages 211c are formed at positions corresponding to the rear side. The lower surface side of each of the second air flow paths 211c is also open as in the case of the first air flow path 211a. Therefore, as shown in FIG. 6, in the range in which the second air passages 211 c are formed, the second air passages 42 a and the second air passages 211 c overlap each other to form one passage.

  As a result of being configured as described above, when the blower 23 is operated, environmental air surrounding the occupant is sucked through the communication passage 211 d, the first air passages 211 a and the through holes 211 b, and the annular passage 24 a of the support plate 24 And, the air is exhausted through the second air passages 42a. FIG. 2 shows the flow of the air by an arrow.

  Since the second air passages 211c on the cushion pad 211 side partially overlap each other to form one passage in each second air passage 42a, the passage area in the exhaust passage is increased, and the flow resistance is reduced. Be done. Therefore, the passage area of the cushion panel 42 combined with the second air passage 42a of the cushion panel 42 is enlarged to surround the occupant without increasing the passage area of the second air passage 211c of the cushion pad 211 which affects the ride comfort of the seat cushion 21. Can ventilate the environment. Exhaust air from the second air passages 42 a and 211 c is sent to the trunk room 3 from the rear end of the cushion pad 211.

  According to the above embodiment, the cushion panel 42 which is the non-seating surface side layer is configured to have high strength as compared with the cushion pad 211 which is the seating surface side layer. Therefore, the cushioning property of the seat cushion or the seat back is secured by the cushion pad 211, and the shape holding function of the second air passage 42a formed in the cushion panel 42 is enhanced. As a result, the volume of the second air passage 211c formed in the cushion pad 211 is reduced by the amount of the second air passage 42a formed in the cushion panel 42, and the strength of the cushion pad 211 is suppressed to suppress the seating of the seat. It can improve the problem of deteriorating comfort.

  Further, since the first air passage 211a and the second air passages 42a and 211c are formed open on the surfaces of the cushion pad 211 and the cushion panel 42, the first air passage 211a and the second air passages 42a and 211c are formed. Can be easily formed integrally on the cushion pad 211 and the cushion panel 42. That is, when the first air passage 211a and the second air passages 42a and 211c are embedded in the cushion pad 211 and the cushion panel 42, they pass through the first air passage 211a and the second air passages 42a and 211c. Although it is necessary to divide and form the cushion pad 211 and the cushion panel 42 at the position and then integrally connect them, in the case of the above embodiment, such an effort can be made unnecessary. Moreover, even if the first air passage 211a and the second air passages 42a and 211c are formed open on the opposite side of the cushion pad 211 and the cushion panel 42, the air between the first air passage 211a and the second air passage 42a The first air flow passage 211 a and the second air flow passage 42 a can function independently of each other because the flow of air is blocked by the seal material 25.

  Moreover, according to the said embodiment, the 1st ventilation path 211a and the 2nd ventilation path 42a are isolate | separated by the support plate 24 of the air blower 23. As shown in FIG. Therefore, even if the first air passage 211a and the second air passage 42a are not formed independently of each other at the installation site of the blower 23, they can be functioned independently of each other by the support plate 24. As a result, at the installation site of the blower 23, the number of air flow paths corresponding to the first air flow path 211a and the second air flow path 42a distributed and disposed is reduced to correspond to the first air flow path 211a and the second air flow path 42a. Insufficient strength of the cushion pad 211 that forms the air flow path can be suppressed, and the problem of deterioration in seat comfort can be improved.

  Further, since the annular passage 24a of the support plate 24 is in communication with the second air passage 42a, the annular passage 24a functions as a second air passage 42a. Therefore, the air passage corresponding to the second air passage 42a formed in the cushion pad 211 can be reduced by the annular passage 24a, and the problem of insufficient strength of the cushion pad 211 at the installation site of the blower 23 can be improved. .

  As mentioned above, although specific embodiment was described, the present invention is not limited to those appearances and composition, and various change, addition, and deletion are possible in the range which does not change the gist of the present invention. For example, although the present invention is applied to a seat of a car in the above embodiment, it may be applied to a seat mounted on an airplane, a ship, a train or the like.

DESCRIPTION OF SYMBOLS 1 front seat 2 rear seat 21 seat cushion 211 cushion pad (layer which forms the 1st and 2nd ventilation path, seating surface side layer)
211a first air flow path 211b through hole 211c second air flow path 211d communication path 211e hollow portion 212 surface layer pad 22 seat back 23 air blower 24 support plate 24a annular path 24c bank portion 25 seal material 3 trunk room 4 floor panel 41 vertical wall 42 cushion panel (Layer forming the first and second air passages, non-seating surface side layer)
42a second air passage

Claims (4)

The air flow of the blower sandwiches the blower and is provided with a first air passage on one side and a second air passage on the other side, both air passages being along the seating surface of the seat cushion or seat back in the vehicle seat A vehicle seat blower comprising: a seating surface provided with the air flow generated by the blower on the seating surface to ventilate or air-condition the environment surrounding the occupant;
In the seat cushion or the seat back, the layers forming the first and second air passages are divided into two layers along the seating surface, and the non-seating surface side layer has a higher strength than the seating surface side layer,
The first air flow path formed in the seating surface side layer and the second air flow path formed in the non-seating surface side layer are formed with the opposing sides of the layers open.
In the area where the layers of the first air passage formed in the seating surface side layer and the layers of the second air passage formed in the non-seating surface side layer are opposed in the overlapping direction, the air between the first and second air passages Vehicle seat blower for which the flow of electricity is blocked. In claim 1,
The seating surface side layer is a pad material provided with a cushioning property for improving seating feeling,
The air bearing device for a vehicle seat, wherein the non-seating surface side layer is a metal plate having a strength for supporting an occupant. In claim 1 or 2,
On the side opposite to the seating surface side of the seating surface side layer, there is provided a blower forcibly sending air between the second ventilation passage and a position connected to the first ventilation passage,
The blower is supported on a support plate and is adapted to send air between each side of the support plate,
The support plate covers the end of the first air passage from the opposite seating surface side, and on the opposite seating surface side is formed an annular passage surrounding the blower with an annular space.
An air blower for a vehicle seat, wherein the second air passage is formed in the non-seating surface side layer so as to be in communication with the annular passage. In any one of claims 1 to 3,
First and second air passages are formed in the seating surface side layer,
A second air passage is formed in the non-seating surface side layer,
An air blower for a vehicle seat, wherein the second air flow passage of the seating surface side layer and the second air flow passage of the non-seating surface side layer are disposed to face each other.

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