JP2018167600A - Vehicle seat - Google Patents

Abstract

To stabilize a position of a temperature detector, and inhibit a positional deviation of the temperature detector.SOLUTION: A vehicle seat includes: a cushion pad 20; a bottom plate 10; an electrothermal heater 30 that is attached to the cushion pad 20; a thermistor 40 that detects temperature between the cushion pad 20 and the bottom plate 10 during operation of the electrothermal heater 30; a dent-like storage concave part 21 that is formed in the bottom of the cushion pad 20; and a retention pad 50 that retains the thermistor 40 in the storage concave part 21 when being fitted into the storage concave part 21 with the thermistor 40 attached thereto. The thermistor 40 is retained by the retention pad 50 while being located between the cushion pad 20 and the retention pad 50 within the storage concave part 21.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a vehicle seat, and in particular, a temperature control unit is attached to a cushion pad placed on the bottom wall, and the temperature detection unit controls the temperature between the cushion pad and the bottom wall during operation of the temperature control unit. The present invention relates to a vehicle seat configured to detect.

  Among vehicle seats, there is a seat in which a temperature control unit such as an electric heater is attached to a cushion pad placed on a bottom wall. In addition, in a seat having a temperature control section, the temperature in the seat is detected during operation of the temperature control section in order to control the operating state of the temperature control section, and the temperature control section The operating state may be controlled. In said structure, the means (temperature detection part) which detects the temperature in a sheet | seat is arrange | positioned between a bottom wall and a cushion pad (for example, refer patent document 1).

  In Patent Document 1, in a two-wheeled vehicle seat provided with a seat heater, a thermistor as a temperature detector is disposed between a bottom plate as a bottom wall and a cushion pad. More specifically, a concave recess is formed in a portion of the cushion pad that faces the bottom plate, and the thermistor is accommodated in the recess. The thermistor detects the temperature in the sheet (strictly, the temperature in the recess) while being accommodated in the recess.

JP 2011-131856 A

  However, in the configuration described in Patent Document 1, there is a possibility that the thermistor housed in the recess moves (displaces) in the recess, and is detected when the position of the thermistor varies. There is a risk of variations in temperature.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle seat that can stabilize the position of the temperature detection unit in the seat.

  According to the vehicle seat of the present invention, the object is to provide a cushion pad, a bottom wall on which the cushion pad is placed, a temperature control unit attached to the cushion pad, and the cushion pad during operation of the temperature control unit. A temperature detection unit that detects a temperature between the bottom wall and the bottom wall, a hollow housing formed in a portion facing one of the cushion pad and the bottom wall, and the temperature detection unit A holding part that holds the temperature detection part in the storage part by being housed in the storage part in an attached state, and the temperature detection part is held in the storage part with the cushion pad. This is solved by being held by the holding portion in a state of being located between the two portions.

  In the vehicle seat of the present invention configured as described above, a recessed housing portion is formed in a portion facing one of the cushion pad and the bottom wall. Moreover, the holding | maintenance part of the state to which the temperature detection part was attached is engage | inserted by the accommodating part. Thereby, a temperature detection part is hold | maintained in the state located between the cushion pad and the holding | maintenance part in the accommodating part. As a result, it is possible to stabilize the position of the temperature detection unit in the housing unit and suppress the displacement of the temperature detection unit.

In the above configuration, the bottom wall may be provided with a protruding portion protruding at a position aligned with the holding portion, and the protruding portion may be in contact with the bottom surface of the cushion pad.
In said structure, the protrusion part provided in the bottom wall exists in the position along with a holding | maintenance part. Moreover, the protrusion part is contacting the bottom face of a cushion pad. With such a configuration, when a load is applied to the cushion pad, it is possible to suppress deformation and displacement of the cushion pad by the presence of the protruding portion at the tip in the direction in which the load acts. As a result, it is possible to suppress displacement of the holding unit and the temperature detection unit due to the deformation and displacement of the cushion pad.

In the above configuration, the protrusion is a protrusion protruding toward the side where the cushion pad is positioned in the thickness direction of the vehicle seat, and the protrusion amount of the protrusion is the protrusion in the thickness direction. It may be longer than the length of the holding part.
In said structure, the protrusion part (convex part) longer than a holding | maintenance part protrudes toward the side in which a cushion pad is located in the thickness direction of a vehicle seat. Thereby, for example, when the cushion pad is pressed from above, the convex portion receives the pressing load. With such a configuration, when the load is applied to the cushion pad in the thickness direction of the vehicle seat, it is possible to suppress the displacement of the holding unit and the temperature detection unit.

Further, in the above configuration, the protruding portion is a front side wall provided in front of the holding portion in the front-rear direction of the vehicle seat, and the front side wall is the front side wall in the thickness direction of the vehicle seat. It is good to protrude toward the side where a cushion pad is located.
In said structure, the protrusion part (front side wall) which protruded toward the side located in a cushion pad in the thickness direction of a vehicle seat is provided in the front side rather than the holding | maintenance part. Thereby, for example, when the cushion pad is pressed from the front, the front side wall receives the pressing load. With such a configuration, when a load is applied to the cushion pad from the front of the vehicle seat, it is possible to suppress displacement of the holding unit and the temperature detection unit.

Further, in the above configuration, the protruding portion is a side wall provided outside the holding portion in the width direction of the vehicle seat, and the side wall is a thickness direction of the vehicle seat. It is good to protrude toward the side where the cushion pad is located.
In said structure, the protrusion part (side wall) which protruded toward the side located in a cushion pad in the thickness direction of a vehicle seat is provided outside the holding | maintenance part in the width direction of the vehicle seat. Thereby, for example, when the cushion pad is pressed from the side, the side wall receives the pressing load. With such a configuration, when a load is applied to the cushion pad from the side of the vehicle seat, it is possible to suppress displacement of the holding unit and the temperature detection unit.

Further, in the above configuration, the temperature detection unit outputs a signal corresponding to the detected temperature, and the temperature detection unit is connected to a cable that forms a transmission path of the signal, A portion of the cable that is formed at the bottom of the cushion pad and adjacent to the housing portion at the bottom of the cushion pad is a portion of the cable that protrudes from the end of the housing portion to the outside of the housing portion. It is preferable that a recess for entering is formed.
In the above configuration, the cable forming the transmission path of the signal output from the temperature detection unit (strictly, the part that has gone out of the storage unit) is in the recess adjacent to the storage unit in the bottom of the cushion pad. It has entered. Thereby, it is possible to suppress the cable from being crushed by a load applied to the cushion pad when the seat is seated.

Further, in the above configuration, the temperature detection unit is attached to the holding unit in a state of being wrapped in a buffer material, and in the storage unit, the buffer material that wraps the temperature detection unit is connected to the holding unit. It is good to be sandwiched between the cushion pads.
In said structure, the shock absorbing material is arrange | positioned between the temperature detection part and the cushion pad and the holding | maintenance part. With such a configuration, the load applied to the temperature detection unit can be reduced by the buffer material, and the temperature detection unit can be protected.

Moreover, said structure WHEREIN: The said vehicle seat is mounted in the state exposed outside in the vehicle, and the said holding | maintenance part is good to consist of a cushioning material which has heat insulation.
In said structure, the internal space of an accommodating part is thermally insulated by a holding | maintenance part and a cushion pad. Thereby, even if the vehicle seat itself is exposed to the outside air, the temperature detection unit in the housing unit can accurately detect the seat temperature. As a result, the temperature control unit based on the detected temperature is accurately controlled.

According to the vehicle seat of the present invention, it is possible to stabilize the position of the temperature detection unit in the housing unit and suppress the displacement of the temperature detection unit.
In addition, according to the vehicle seat of the present invention, it is possible to suppress displacement of the holding portion and the temperature detection portion when a load is applied to the cushion pad.
Further, according to the vehicle seat of the present invention, it is possible to suppress the displacement of the holding portion and the temperature detection portion when a load is applied to the cushion pad in the thickness direction of the vehicle seat.
Moreover, according to the vehicle seat of the present invention, when a load is applied to the cushion pad from the front of the vehicle seat, it is possible to suppress displacement of the holding portion and the temperature detection portion.
In addition, according to the vehicle seat of the present invention, when a load is applied to the cushion pad from the side of the vehicle seat, it is possible to suppress displacement of the holding unit and the temperature detection unit.
Moreover, according to the vehicle seat of the present invention, it is possible to prevent the cable forming the transmission path of the signal output from the temperature detection unit from being crushed when seated.
Moreover, according to the vehicle seat of the present invention, it is possible to reduce the load applied to the temperature detection unit by the buffer material and protect the temperature detection unit.
Further, according to the vehicle seat of the present invention, even if the vehicle seat itself is exposed to the outside air, it becomes possible for the temperature detection unit in the housing unit to detect the seat temperature with high accuracy, and to detect the detected temperature. The temperature control unit based on the control is accurately performed.

It is a figure which shows the vehicle carrying the vehicle seat which concerns on one Embodiment of this invention. It is a vehicle seat which concerns on one Embodiment of this invention, Comprising: It is a figure which shows the state in which the backrest was attached. It is a vehicle seat which concerns on one Embodiment of this invention, Comprising: It is a figure which shows the state from which the backrest was removed. 1 is a structural equipment diagram of a vehicle seat according to an embodiment of the present invention. It is a perspective view of a bottom wall. It is the figure which looked at the cushion pad from the upper part. It is the figure which looked at the cushion pad from the lower part. It is an enlarged view which shows an accommodation recessed part periphery among the bottom surfaces of a cushion pad. It is a figure which shows a holding | maintenance part. It is a figure which shows the arrangement position of a holding | maintenance part. It is a figure which shows the XX cross section of FIG. 2B. It is a figure which shows the YY cross section of FIG. 2B. It is a figure which shows the structure at the time of providing a positioning rib in a bottom wall. It is a figure which shows the structure of the vehicle seat which concerns on a modification.

  Hereinafter, a vehicle seat according to an embodiment (this embodiment) of the present invention will be described. The embodiment described below is an example for facilitating understanding of the present invention, and does not limit the present invention. That is, the present invention can be changed and improved without departing from the gist thereof, and the present invention includes its equivalents.

  Hereinafter, a motorcycle V will be cited as an example of a vehicle, and a configuration of the motorcycle seat S will be described using a seat mounted on the motorcycle V (hereinafter referred to as a motorcycle seat S) as an example of a vehicle seat of the present invention. And However, the present invention is also applicable to vehicles other than motorcycles, for example, automobile tricycles, four-wheeled vehicles such as passenger cars, or vehicle seats mounted on ships, aircrafts, and the like.

  In the following description, the “front-rear direction” corresponds to the front-rear direction of the motorcycle seat S and coincides with the traveling direction of the motorcycle V. The “width direction” corresponds to the width direction (lateral width direction) of the motorcycle seat S, and coincides with the left-right direction when the motorcycle V is viewed from the front. The “thickness direction” corresponds to the thickness direction of the motorcycle seat S, and is a direction orthogonal to both the front-rear direction and the width direction. The thickness direction coincides with the vertical direction when the motorcycle V stands upright on a horizontal plane. In each figure (FIGS. 1 to 13) to be referred to later, directions that can be illustrated among the front-rear direction, the width direction, and the thickness direction are indicated by arrows.

  In the following description, when describing the positions and states of the parts constituting the motorcycle seat S, the motorcycle V is in an upright state (not tilted to the left and right) unless otherwise specified. The contents at a certain time will be explained.

<< Basic configuration of motorcycle seat according to this embodiment >>
A basic configuration of a motorcycle seat S according to the present embodiment (hereinafter simply referred to as a motorcycle seat S) will be described with reference to FIGS. 1 to 3. FIG. 1 is a side view of a motorcycle V on which a motorcycle seat S is mounted. FIG. 2A is a perspective view showing the motorcycle seat S with a backrest Sb, which will be described later, attached thereto. FIG. 2B is a perspective view showing the motorcycle seat S with the backrest Sb removed. FIG. 3 is a structural diagram of the motorcycle seat S, in which the motorcycle seat S is disassembled into its constituent parts.

  The motorcycle seat S is a straddle-type seat on which an occupant of the motorcycle V sits and is mounted on the motorcycle V so as to be exposed to the outside as shown in FIG. That is, the motorcycle seat S is used in a state exposed to the outside air. In the present embodiment, the two-wheeled vehicle seat S is a two-seater seat in which an occupant can be seated in a front portion and a rear portion, respectively, as shown in FIGS. 2A and 2B. That is, the front part of the motorcycle seat S constitutes the front seat Sf, and the rear part constitutes the rear seat Sr.

  In the motorcycle seat S, as shown in FIG. 2B, the rear seat Sr is positioned one step higher than the rear end of the front seat Sf. More specifically, in the motorcycle seat S, a stepped portion St is provided between the front seat Sf and the rear seat Sr. The stepped portion St is inclined with respect to the front-rear direction and the thickness direction, and specifically, is inclined so as to be located on the rear side as it goes upward.

  As shown in FIG. 2A, in the motorcycle seat S, a backrest Sb is provided at the front end of the rear seat Sr. The backrest Sb supports the back of the occupant (that is, the occupant seated on the front seat Sf) when only one occupant is seated on the front seat Sf of the motorcycle seat S. The backrest Sb is arranged so that the front surface of the backrest Sb is continuous with the front surface of the stepped portion St.

  The backrest Sb can be attached to and detached from the seat body (a part of the motorcycle seat S other than the backrest Sb). More specifically, the backrest Sb is attached to the seat body by inserting a lower portion (strictly, a pillar (not shown)) of the backrest Sb into an insertion hole provided in the front end portion of the rear seat Sr. Yes. On the contrary, the backrest Sb is removed from the seat body by pulling out the pillar of the backrest Sb from the insertion hole.

  When the backrest Sb is removed, the insertion hole is closed by the resin cover Sc at the front end of the rear seat Sr, as shown in FIG. 2B.

  As shown in FIG. 3, the motorcycle seat S is configured by placing the cushion pad 20 on the upper surface of the bottom plate 10 that forms the bottom wall and covering the cushion pad 20 with the skin R. In the present embodiment, the cushion pad 20 constituting the front seat Sf and the cushion pad 20 constituting the rear seat Sr are provided separately. Each cushion pad 20 is configured by molding a cushion material such as urethane into a predetermined shape. Moreover, the thickness (length in the thickness direction) of the cushion pad 20 is substantially the same as the thickness of the cushion pad used for a normal motorcycle seat.

  As shown in FIG. 3, the two-wheeled vehicle seat S is provided with an electric heater 30 as a temperature control unit in addition to the above-described devices (the bottom plate 10, the cushion pad 20, and the skin R). The electric heater 30 is used to heat the seat surface (specifically, the surface that comes into contact with the occupant's buttocks), and is disposed between the cushion pad 20 and the skin R. More specifically, the electric heater 30 is attached to the upper end surface of the cushion pad 20.

  In the seat configuration shown in FIG. 3, one electric heater 30 is provided for each of the front seat Sf and the rear seat Sr. That is, one electric heater 30 is attached to each of the upper end surface of the cushion pad 20 constituting the front seat Sf and the upper end surface of the cushion pad 20 constituting the rear seat Sr.

  The electric heater 30 operates by being supplied with power from a power source (not shown). The on / off of the electric heater 30 is controlled by a controller (not shown) (specifically, an ECU (Electronic Control Unit)). This controller controls the operating time (time to turn on) of each electric heater 30 according to the sheet temperature. More specifically, a thermistor 40 as a temperature detection unit is disposed in the motorcycle seat S. The thermistor 40 is disposed between the cushion pad 20 and the bottom plate 10 in the thickness direction. While the electric heater 30 is in operation, the thermistor 40 has an ambient temperature at the arrangement position (the temperature of the space where the thermistor 40 is arranged, strictly speaking, the temperature in the housing recess 21 described later). ) Is detected. The controller controls on / off of the electric heater 30 according to the temperature detected by the thermistor 40.

  The thermistor 40 outputs a signal corresponding to the detected temperature when detecting the temperature. Further, as shown in FIG. 3, the thermistor 40 is connected with a cable C that forms the transmission path. The cable C wraps around the back side of the bottom plate 10 through a through hole provided in the bottom plate 10 and is connected to the connection terminal (not shown) of the controller on the back side of the bottom plate 10. The controller receives an output signal from the thermistor 40 via the cable C.

<< About the structure of the bottom plate >>
The configuration of the bottom plate 10 will be described with reference to FIG. FIG. 4 is a perspective view of the bottom plate 10. The bottom plate 10 is a resin molded product formed in a substantially boat shape, and includes a front portion 11 that constitutes the front seat Sf and a rear portion 12 that constitutes the rear seat Sr. The rear part 12 is located somewhat above the front part 11. That is, a step is formed between the front portion 11 and the rear portion 12.

  Specifically, as shown in FIG. 4, an inclined wall 13 constituting a stepped portion St is provided between the front side portion 11 and the rear side portion 12. The inclined wall 13 is inclined with respect to the front-rear direction and the thickness direction. Specifically, the inclined wall 13 is inclined so as to be located on the rear side as it goes upward. Here, the inclined wall 13 is an example of a protruding portion, and is slightly raised from the periphery (the periphery of the inclined wall 13, more specifically, the portion at the front side of the inclined wall 13 in the front side portion 11). doing. Further, when the cushion pad 20 (strictly speaking, the cushion pad 20 constituting the rear seat Sr) is placed on the bottom plate 10, the inclined wall 13 has the cushion pad 20 positioned in the thickness direction. It protrudes toward the side to be touched, and is in contact with the bottom surface (back surface) of the cushion pad 20.

  Further, as shown in FIG. 4, a backrest mounting convex portion 14 that protrudes upward is formed in a portion adjacent to the rear end of the inclined wall 13 in the central portion in the width direction of the rear portion 12. ing. Here, the backrest mounting convex portion 14 is an example of a protruding portion, and is more than the periphery (the portion around the backrest mounting convex portion 14, for example, at the side of the backrest mounting convex portion 14). Somewhat raised. Further, when the cushion pad 20 (strictly speaking, the cushion pad 20 constituting the rear seat Sr) is placed on the bottom plate 10, the backrest mounting convex portion 14 is cushioned in the thickness direction. It protrudes toward the side where the pad 20 is located, and is in contact with the bottom surface (back surface) of the cushion pad 20.

  The backrest mounting convex part 14 is raised so as to expand somewhat in the width direction, and includes a hole (hereinafter referred to as an insertion hole 14 a) extending downward from the top surface of the backrest mounting convex part 14. Yes. The insertion hole 14a is a portion into which a lower portion (specifically, a pillar portion) of the backrest Sb is inserted when the backrest Sb is attached. When the backrest Sb is removed, the upper end opening of the insertion hole 14a is closed by the resin cover Sc.

  Further, as shown in FIG. 4, side standing walls 15 projecting upward are provided at both end portions (both end portions in the width direction) of the rear portion 12. Here, the side standing wall 15 is an example of a protruding portion, and protrudes from the periphery (a portion around the side standing wall 15, specifically, a portion located inward in the width direction from the side standing wall 15). Yes. Further, when the cushion pad 20 (strictly speaking, the cushion pad 20 constituting the rear seat Sr) is placed on the bottom plate 10, the side standing wall 15 has the cushion pad 20 in the thickness direction. It protrudes toward the side where it is located, and is in contact with the bottom surface (back surface) of the cushion pad 20.

  Further, as shown in FIG. 4, in the portion adjacent to the rear end of the inclined wall 13 in the rear portion 12 (that is, the front end portion in the rear portion 12), it is located slightly outside the central portion in the width direction. A mounting portion 16 is provided in the portion. The mounting portion 16 is a portion provided for mounting (fixing) the holding pad 50 on a holding pad 50 described later. That is, the portion of the rear portion 12 where the mounting portion 16 is provided constitutes a mounting space for the holding pad 50. In addition, in order to install the holding pad 50 appropriately, the upper surface of the attachment portion 16 is a flat surface.

  Further, as shown in FIG. 4, the protrusions described above (that is, the inclined wall 13, the backrest attaching convex part 14, and the side standing wall 15) are arranged around the attaching part 16. More specifically, an inclined wall 13 is provided at a position immediately in front of the mounting portion 16. Further, a backrest mounting convex portion 14 is provided at a position adjacent to the mounting portion 16 on the inner side in the width direction than the mounting portion 16. Further, a side upright wall 15 is provided at a position adjacent to the mounting portion 16 outside the mounting portion 16 in the width direction.

<< Composition of cushion pad >>
Next, the configuration of the cushion pad 20, particularly the cushion pad 20 constituting the rear seat Sr, will be described with reference to FIGS. 5 to 7. FIG. 5 is a view of the cushion pad 20 as viewed from above. FIG. 6 is a view of the cushion pad 20 as viewed from below. FIG. 7 is an enlarged view showing the vicinity of the accommodating recess 21 described later in the bottom surface of the cushion pad 20. In FIG. 7, the holding pad 50 and the cable C are illustrated by broken lines in order to show the positional relationship between the housing recess 21 and the holding pad 50 or the cable C.

  In the following description, unless otherwise specified, the cushion pad 20 constituting the rear seat Sr is simply referred to as “cushion pad 20”.

  The cushion pad 20 according to the present embodiment is made of a relatively high-density urethane pad and has the outer shape shown in FIGS. 5 and 6. An electric heater 30 is attached to the upper surface of the cushion pad 20 (the surface on the side that supports the occupant in the thickness direction). More specifically, the electric heater 30 includes a base material 31 made of a rubber mat (specifically, ethylene / propylene / diene rubber) and a heater wire (not shown) bonded to the lower surface of the base material 31. And having. And the electric heater 30 is attached to the upper surface of the cushion pad 20 with the heater wire facing the upper surface of the cushion pad 20 (bonded).

  In addition, in this embodiment, although the mat | matte which comprises the base material 31 is comprised with the independent foam material, it is not limited to this, You may be comprised with a continuous foam material.

  Further, as shown in FIG. 6, a recessed accommodation recess 21 is formed on the bottom surface of the bottom of the cushion pad 20 (that is, the portion facing the bottom plate 10 in the thickness direction). The housing recess 21 corresponds to a housing portion, and is a rectangular recess in plan view formed by being somewhat recessed in the thickness direction from the periphery (around the housing recess 21).

  As shown in FIG. 6, the housing recess 21 is provided slightly outside the center in the width direction on the bottom surface of the bottom of the cushion pad 20. More specifically, the housing recess 21 is positioned immediately above the mounting portion 16 in a state where the cushion pad 20 is placed on the rear portion 12 of the bottom plate 10.

  As shown in FIG. 7, a cable receiving recess 22 that is continuous with the receiving recess 21 is formed in a portion adjacent to the receiving recess 21 at the bottom of the cushion pad 20. The cable housing recess 22 is a hollow recess, and a part of the cable C forming the transmission path of the output signal from the thermistor 40 enters inside the recess. By allowing a part of the cable C to enter the cable housing recess 22, the cable C can be appropriately disposed on the lower surface of the bottom portion of the cushion pad 20. In this embodiment, since the size (cross-sectional size) of the cable housing recess 22 is somewhat larger than the cross section of the cable C, the cable C can smoothly enter the cable housing recess 22. It is.

<< Thermistor placement position >>
The arrangement position of the thermistor 40 in the present embodiment will be described with reference to FIGS. FIG. 8 is a perspective view showing a holding pad 50 described later. FIG. 9 is an explanatory diagram of the arrangement position of the holding pad 50 and is a view showing the rear portion 12 of the bottom plate 10 on which the holding pad 50 is placed. FIG. 10 is a schematic diagram showing the XX cross section of FIG. 2B. FIG. 11 is a schematic diagram showing a YY cross section of FIG. 2B.

  In the present embodiment, the thermistor 40 is disposed in the accommodating recess 21 formed at the bottom of the cushion pad 20. In the present embodiment, a structure for suppressing the positional deviation of the thermistor 40 in the housing recess 21 is employed. More specifically, the holding pad 50 shown in FIG. 8 is used to hold the thermistor 40 in the housing recess 21.

  The holding pad 50 is a holding portion that holds the thermistor 40 in the housing recess 21 and is made of a substantially rectangular parallelepiped cushion material. As the cushion material constituting the holding pad 50, a material that is softer and more flexible than the material of the bottom plate 10 and that has heat insulation properties, such as urethane foam, can be used.

  The holding pad 50 has a slight thickness. Specifically, the holding pad 50 has substantially the same thickness as the depth of the housing recess 21. More specifically, the height when the nonwoven fabric 41 described later is overlapped on the holding pad 50 substantially matches the depth (height) of the housing recess 21. Further, the outer shape of the holding pad 50 is a shape that can be fitted into the housing recess 21.

  Further, as shown in FIG. 8, the thermistor 40 is attached to the upper surface of the holding pad 50. In the present embodiment, the thermistor 40 is attached to the holding pad 50 in a state of being wrapped in a nonwoven fabric 41 as a cushioning material. More specifically, the sheets of the nonwoven fabric 41 are arranged above and below the thermistor 40, and the thermistor 40 is sandwiched between the nonwoven fabrics 41. Of the nonwoven fabric 41, the portion located above the thermistor 40 and the portion located below the thermistor 40 are each cut into the same shape as the upper surface of the holding pad 50. Then, the portion of the nonwoven fabric 41 positioned above the thermistor 40 and the portion positioned below the thermistor 40 are bonded together, and the nonwoven fabric 41 positioned below the thermistor 40 is bonded to the upper surface of the holding pad 50. Has been.

  As shown in FIG. 9, the holding pad 50 to which the thermistor 40 is attached is fixed on the attachment portion 16 provided on the upper surface of the bottom plate 10. When the cushion pad 20 is placed on the rear portion 12 of the bottom plate 10, the holding pad 50 enters the receiving recess 21 formed at the bottom of the cushion pad 20 and fits into the receiving recess 21. become. As a result, the holding pad 50 holds the thermistor 40 in the receiving recess 21.

  As described above, the holding pad 50 holds the thermistor 40 in the receiving recess 21 by fitting in the receiving recess 21 with the thermistor 40 attached. In other words, as shown in FIG. 10, the thermistor 40 is held by the holding pad 50 while being positioned between the cushion pad 20 and the holding pad 50 in the housing recess 21. Strictly speaking, in the housing recess 21, the nonwoven fabric 41 that encloses the thermistor 40 is sandwiched between the holding pad 50 and the cushion pad 20 in the thickness direction.

  With the above configuration, in the present embodiment, the position of the thermistor 40 in the housing recess 21 can be stabilized. Further, since the thermistor 40 is sandwiched between the cushion pad 20 and the holding pad 50, when the occupant is seated on the motorcycle seat S, a load (seat load) is applied to the thermistor 40 and the thermistor 40 is damaged. Can be effectively suppressed. Furthermore, since the thermistor 40 is wrapped with the nonwoven fabric 41, the thermistor 40 can be better protected.

  In addition, the inner wall of the accommodation recessed part 21 is comprised with the material (specifically urethane pad) with comparatively high density. The holding pad 50 is made of a cushioning material (specifically, urethane foam) having heat insulation properties. Therefore, the space in the accommodation recess 21 is not easily crushed and is effectively thermally insulated. Thus, the thermistor 40 can accurately detect the temperature in the housing recess 21.

  Further, as shown in FIG. 7, a cable housing recess 22 is formed in a portion adjacent to the housing recess 21 at the bottom of the cushion pad 20. Of the cable C forming the transmission path of the output signal from the thermistor 40, a portion protruding from the end of the housing recess 21 to the outside of the housing recess 21 enters the cable housing recess 22.

  In the present embodiment, means for preventing the holding pad 50 from being deformed or displaced due to a load applied to the cushion pad 20 when the seat is seated is provided around the holding pad 50. More specifically, as shown in FIG. 10 and FIG. 11, the bottom plate 10 has a protruding portion at a position aligned with the mounting portion 16 on which the holding pad 50 is placed (in other words, a position aligned with the holding pad 50). The inclined wall 13, the backrest mounting convex portion 14, and the side standing wall 15 are provided.

  As shown in FIG. 11, the inclined wall 13 protrudes upward from the rear end of the front portion 11 of the bottom plate 10 (that is, the side where the cushion pad 20 is positioned in the thickness direction), and in the front-rear direction. It is provided in front of the holding pad 50. That is, the inclined wall 13 corresponds to the front side wall. By providing the inclined wall 13, even if a load (hereinafter referred to as a load from the front) is applied when the back of the occupant seated on the motorcycle seat S leans on the stepped portion St, the holding pad 50. It becomes possible to receive the load from the front by the inclined wall 13 at a position closer to the front. As a result, it is possible to suppress the holding pad 50 from being deformed or moved by a load from the front, and thereby to stabilize the position of the thermistor 40.

  The backrest mounting convex portion 14 is an example of a convex portion, and as shown in FIG. 10, the cushion pad 20 is positioned above the center portion in the width direction of the rear portion 12 of the bottom plate 10 (that is, in the thickness direction). Projecting toward the side). The backrest mounting convex portion 14 is provided at a position adjacent to the holding pad 50 in the width direction. Further, the height of the backrest mounting convex portion 14 (in other words, the protruding amount of the backrest mounting convex portion 14) is the height of the holding pad 50 (strictly speaking, from the mounting portion 16 to the thermistor 40 in the thickness direction). The distance is longer than By providing such a backrest mounting convex portion 14, even if a load (hereinafter referred to as a load from above) is applied when an occupant is seated on the rear seat Sr of the motorcycle seat S, it is retained. It is possible to receive a load from above at a position above the pad 50 by the backrest mounting convex portion 14. As a result, it is possible to suppress the holding pad 50 from being deformed or moved by a load from above, and thereby to stabilize the position of the thermistor 40.

  As shown in FIG. 10, the side wall 15 protrudes upward (that is, the side where the cushion pad 20 is located in the thickness direction) at the side end portion of the rear portion 12 of the bottom plate 10. The side wall 15 is positioned outside the holding pad 50 in the width direction. That is, the side wall 15 corresponds to a side wall. Moreover, the side standing wall 15 is provided in a pair of left and right sides, and the side standing wall 15 located on the side opposite to the backrest mounting convex portion 14 when viewed from the holding pad 50 is, as shown in FIG. It is arranged at a position adjacent to the holding pad 50 in the width direction. Since such a side wall 15 is provided, a load (hereinafter referred to as a load from the side) is applied to the occupant seated on the rear seat Sr of the two-wheeled vehicle seat S by tilting left and right. However, the side wall 15 located at the outer end in the width direction receives a load from the side. As a result, it is possible to suppress the holding pad 50 from being deformed or moved by a load from the side, and thereby to stabilize the position of the thermistor 40.

  To supplement the configuration around the holding pad 50 in the bottom plate 10, for example, as shown in FIG. 11, a convex positioning rib 17 is provided at a position immediately before a position where the holding pad 50 is attached in the attachment portion 16. Also good. FIG. 12 is a diagram showing a configuration when the positioning ribs 17 are provided on the bottom plate 10, and is a modification of the configuration shown in FIG. If the positioning rib 17 is provided, the holding pad 50 can be positioned and fixed appropriately when the holding pad 50 is mounted on the mounting portion 16 and fixed.

<< Other Embodiments >>
The configuration of the vehicle seat of the present invention has been described above with an example, but is not limited to the above embodiment, and other embodiments are also conceivable. For example, in the above embodiment, the housing recess 21 as the housing portion is formed at the bottom of the cushion pad 20 (the portion facing the bottom plate 10 in the thickness direction). However, the present invention is not limited to this, and as shown in FIG. 13, a part of the upper end portion of the bottom plate 10 (that is, the portion facing the cushion pad 20 in the thickness direction) is depressed downward to accommodate the bottom plate 10. A housing recess 18 as a part may be provided in the bottom plate 10. FIG. 13 is a diagram illustrating a configuration of a motorcycle seat Sx according to a modification, and is a diagram illustrating a cross-section corresponding to the XX cross-section of FIG. 2B.

  In the motorcycle seat Sx according to the modified example, as shown in FIG. 13, the attachment portion 16 is provided on the surface located at the deepest portion of the accommodation recess 18. As shown in FIG. 13, the holding pad 50 to which the thermistor 40 is attached enters the receiving recess 18 from the upper end opening of the receiving recess 18, and the holding pad 50 fits into the receiving recess 18. As a result, the thermistor 40 is held in the accommodating recess 18.

  When the cushion pad 20 is placed on the rear portion 12 of the bottom plate 10 in the above state, the thermistor 40 is held in a state of being positioned between the cushion pad 20 and the holding pad 50 in the housing recess 18. Will come to be. If it is the above structure, it will become possible to stabilize the position of the thermistor 40 in the accommodation recessed part 18 similarly to the seat S for two-wheeled vehicles demonstrated by said embodiment.

10 Bottom plate 11 Front part 12 Rear part 13 Inclined wall (protruding part, front side wall)
14 Backrest mounting projections (protrusions, projections)
14a Insertion hole 15 Side wall (protrusion, side wall)
16 Mounting portion 17 Positioning rib 18 Housing recess (housing portion)
20 Cushion pad 21 Housing recess (housing portion)
22 Cable housing recess (recess)
30 Electric heater (temperature control unit)
31 Substrate 40 Thermistor (Temperature detector)
41 Nonwoven fabric 50 Holding pad (holding part)
C Cable R Skin S Motorcycle seat (vehicle seat)
Sb Backrest Sc Resin cover Sf Front seat Sr Rear seat St Stepped portion Sx Motorcycle seat V according to a modified example V motorcycle (vehicle)

Claims (8)

Cushion pad,
A bottom wall on which the cushion pad is placed;
A temperature control unit attached to the cushion pad;
A temperature detection unit that detects a temperature between the cushion pad and the bottom wall during operation of the temperature control unit;
A hollow-shaped accommodation portion formed in a portion facing one of the cushion pad and the bottom wall;
A holding part for holding the temperature detection part in the accommodation part by being fitted into the accommodation part in a state in which the temperature detection part is attached;
The vehicle seat, wherein the temperature detection unit is held by the holding unit in a state of being positioned between the cushion pad and the holding unit in the housing unit. The bottom wall is provided with a protruding portion protruding at a position aligned with the holding portion,
The vehicle seat according to claim 1, wherein the protrusion is in contact with a bottom surface of the cushion pad. The protruding portion is a protruding portion protruding toward the side where the cushion pad is located in the thickness direction of the vehicle seat,
The vehicle seat according to claim 2, wherein a protruding amount of the convex portion is longer than a length of the holding portion in the thickness direction. The protruding portion is a front side wall provided on the front side of the holding portion in the front-rear direction of the vehicle seat,
The vehicle seat according to claim 2, wherein the front side wall protrudes toward a side where the cushion pad is located in a thickness direction of the vehicle seat. The protruding portion is a side wall provided outside the holding portion in the width direction of the vehicle seat,
The vehicle seat according to claim 2, wherein the side wall protrudes toward a side where the cushion pad is located in a thickness direction of the vehicle seat. The temperature detection unit outputs a signal corresponding to the detected temperature,
The temperature detection unit is connected to a cable forming the signal transmission path,
The accommodating portion is formed at the bottom of the cushion pad,
In the bottom part of the cushion pad, a portion adjacent to the housing portion is formed with a recess for entering a portion of the cable that protrudes from the end of the housing portion to the outside of the housing portion. The vehicle seat according to any one of claims 1 to 5, wherein: The temperature detection unit is attached to the holding unit in a state of being wrapped in a buffer material,
7. The vehicle according to claim 1, wherein the cushioning material that surrounds the temperature detection unit is sandwiched between the holding unit and the cushion pad in the housing unit. 8. Sheet. The vehicle seat is mounted in a state exposed outside in the vehicle,
The vehicle seat according to any one of claims 1 to 7, wherein the holding portion is made of a cushioning material having heat insulation properties.

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