JP2008195312A - Grip member with electric heater - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a grip member with an electric heater that can obtain good temperature rise. <P>SOLUTION: A heat-generating layer 2, an insulation layer 3 made of a high insulation material, and a heat conductive layer 4 made of a high heat-conductive material such as copper are stacked on a core body one after another. The heat-generating layer 2 is formed by processing belt-like foil conductors made of SUS (stainless steel) into a narrow stripe state, and has a high-density portion 2b wherein the conductors are partially clustered together. When a current is applied to the heat-generating layer 2, the temperature of the high-density portion 2b rises quickly. Then, the heat generated in the high-density portion 2b is diffused and conducted to the grip entirely by the heat-conductive layer 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a grip member with an electric heater used by being mounted on a handle pipe of a motorcycle, a snowmobile or the like.

  A synthetic rubber grip of a handle of a motorcycle, a snowmobile, or the like used in a cold region may have a built-in heating wire that warms the grip as shown in Patent Document 1, for example. As this grip member with an electric heater, one in which a heating wire is spirally wound as a heating element in a groove provided in a synthetic resin core and then the periphery is molded and covered with synthetic rubber is known. .

  However, in the grip of Patent Document 1, since the heating element is spirally wound around the entire grip, the entire grip can be warmed, but it takes time to warm up to a desired temperature. Also, when gripping the handle, it is preferable to warm the fingertips because it is the fingertip that feels colder than the palm, and actively heating a part that is relatively dull with respect to the temperature, such as the palm It also wastes power.

  In general, the electric heater, which is a heating element of the grip, has an electric capacity that is determined by specifications, so it is difficult to change the temperature rise characteristics by changing the total resistance of the heating element.

  Patent Document 2 also discloses a grip that improves the temperature rise characteristics in this range by concentrating heating elements in a certain range of the grip.

US Pat. No. 4,990,753 Japanese Patent Laid-Open No. 10-81282

  However, when the heating elements are concentrated in a certain range as in Patent Document 2, the temperature rise characteristic in this range is improved, but there is a problem that it is difficult to warm outside the range.

  An object of the present invention is to provide a grip member with an electric heater that solves the above-mentioned problems, increases the heat generation amount in a predetermined region, and diffuses the heat generation amount on the grip surface, thereby improving the temperature rise characteristics of the entire grip. Is to provide.

  The technical feature of the grip member with an electric heater according to the present invention for achieving the above object is a grip member with an electric heater in which a heat generating layer and an insulating layer are laminated on a synthetic resin core body made of a cylindrical body. The heating layer has a structure in which a strip-shaped foil conductor is stretched around, and a region in which the strip-shaped foil conductor is densely arranged is provided, and heat generated from the densely arranged region is diffused to the surface of the core body. The heat diffusion part is provided.

  According to the grip member with an electric heater according to the present invention, since the heat generating layer is provided with the region where the heat generation amount is large and the heat diffusion portion is provided, the region to be heated can be preferentially warmed, and the temperature of the grip surface can be increased. Can increase the rise.

  Specifically, when the grip member is gripped within the range of electric power that can be supplied to warm the grip member, it is possible to preferentially warm the portion where the index finger and middle fingertip that are sensitive to cold and cold are touched. And while making a driver | operator recognize that it is warm sensuously, the whole hand can be warmed substantially by a thermal diffusion part.

  The present invention will be described in detail based on the embodiments shown in the drawings.

  FIG. 1 shows a perspective view of a core body of a grip member with an electric heater in the first embodiment. The core body 1 serving as a skeleton member of the grip is formed into a cylindrical shape from a synthetic resin material having electrical insulation.

  FIG. 2 is an exploded perspective view of the heat generating layer 2, the insulating layer 3, and the heat conducting layer 4 attached on the core body 1 formed of the cylindrical body shown in FIG. 1, and FIG. 3 is a plan view of the heat generating layer. The heat generating layer 2 has a dense portion 2b in which a belt-like foil conductor made of, for example, SUS (stainless steel) having a thickness of about 30 μm is punched into a belt-like conductor 2a having a predetermined width and partially densely packed. And it can heat the strip | belt-shaped conductor 2a by flowing an electric current between the edge parts 2c and 2d.

  In the dense portion 2b, the amount of heat generated is increased by folding the strip-shaped conductor 2a in a strip shape so as to be tightly stretched. In the dense portion 2 b, the strip-shaped conductor 2 a has many parallel portions along the longitudinal direction of the core body 1, and the gap between the parallel portions is made small, and when it is attached to the core body 1, it is bent in the circumferential direction. It becomes easy.

  On the heat generating layer 2, an insulating layer 3 made of a material having high electrical insulation properties such as PET having substantially the same size as the heat generating layer 2 and a heat conductive layer 4 made of a material having good heat conductivity such as copper foil are sequentially provided. Are stacked. Actually, for example, the heat generating layer 2 can be obtained by punching out a metal foil layer attached on the insulating layer 3 and peeling off unnecessary portions, and the insulating layer 3 can be used as it is.

  FIG. 4 is a perspective view showing a state in which the heat generating layer 2 is attached to the surface of the core body 1. A power supply line (not shown) is connected to the end portions 2 c and 2 d of the strip-shaped conductor 2 a and illustrated on the heat generating layer 2. A non-insulating layer 3 and a heat conductive layer 4 are laminated. A grip member with an electric heater is completed by molding synthetic rubber on the inner and outer surfaces of the core body 1 including the heat generating layer 2, the insulating layer 3, and the heat conducting layer 4.

  The grip member manufactured in this way is used by being attached to a handle pipe of a motorcycle or the like, and when a current is passed through the heat generating layer 2 via a power supply line, the heat generating layer 2 generates heat and warms the user's hand. it can.

  Since the heat generating layer 2 is partially provided with the dense portion 2b, the temperature of the dense portion 2b rises rapidly, and the portion to be heated first can be locally warmed. Furthermore, by providing a thermal diffusion part composed of the thermal conductive layer 4 having a high thermal conductivity through the insulating layer 3, the heat generated in the dense part 2b is reflected by the thermal diffusion of the strip-shaped conductor 2a as indicated by arrows. It can be diffused in a region where the arrangement is rough or there is no belt-like conductor 2a and the amount of heat generated is small, and a good temperature distribution can be obtained in the entire grip.

  In order to efficiently convert electric power into heat, the dense portion 2b may be installed at a half length from the side connected to the power supply line of the grip member, and further at a position between 1/3. Moreover, although it does not specifically limit in the circumferential direction, What is necessary is just the range of a full circumference to a half circumference, and it is preferable that the dense part 2b exists in the position where a fingertip touches.

  Note that a temperature sensor may be attached to the dense portion 2b of the heat generating layer 2 or an arbitrary portion of the heat conducting layer 4 to control the temperature of the grip.

  FIG. 5 is a perspective view showing a state in which the heat generating layer 2 ′ is attached to the surface of the core body 1 in the second embodiment.

  In Example 2, the dense portion 2b ′ of the heat generating layer 2 ′ is attached only to a predetermined region of the core body 1, and the insulating layer 3 ′ and the heat conductive layer 4 ′ are laminated on the heat generating layer 2 ′. ing. The heat conductive layer 4 'is also attached to the surface of the core body 1 where the heat generating layer 2' is not provided.

  Thereby, for example, the region where the fingertip or the like abuts can be preferentially warmed by the heat generating layer 2 ′, and heat can be diffused throughout the grip by the heat conductive layer 4 ′.

  FIG. 6 shows a plan view of the heat generating layer 12 in the third embodiment. In Example 3, the heat conductive layer 4 used in Example 1 can be omitted.

  In the third embodiment, as in the first embodiment, a dense portion 12b in which the belt-like conductors 12a are partially densely provided is provided, and a heat transfer portion 12c as a heat diffusion portion made of a large-band belt-like foil conductor is provided. For example at two locations. Since the heat transfer section 12c has a small electric resistance, the heat transfer section 12c hardly generates heat, but has a high heat conductivity and can transfer heat well.

  Therefore, when a current is passed from the end portions 12d and 12e via the feeder, the heat generated by the dense portion 12b is diffused to the heat transfer portion 12c via the strip conductor 12a, and a good temperature distribution is obtained throughout the grip. Obtainable.

3 is a perspective view of a core main body according to Embodiment 1. FIG. It is a disassembled perspective view of a heat generating layer, an insulating layer, and a heat conductive layer. It is a top view of a heat generating layer. It is a perspective view of the state where the exothermic layer was stuck on the core body of Example 1. It is a perspective view of the state where the exothermic layer was stuck on a part of core body of Example 2. 6 is a plan view of a heat generating layer of Example 3. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Core main body 2, 2 ', 12 Heat generating layer 2a, 12a Strip | belt-shaped conductor 2b, 2b', 12b Dense part 3, 3 'Insulating layer 4, 4' Heat conduction layer 12c Heat heat transfer part

Claims (5)

  A grip member with an electric heater in which a heat generating layer and an insulating layer are laminated on a synthetic resin core body made of a cylindrical body, wherein the heat generating layer has a structure in which a strip-shaped foil conductor is stretched, and the strip-shaped foil conductor is closely packed A grip member with an electric heater, characterized in that an arranged region is provided, and a heat diffusion part is provided for diffusing heat generated from the densely arranged region to the surface of the core body.   2. The electric heater according to claim 1, wherein the heat generating layer diffuses heat through the heat diffusion portion from a region where the strip-shaped foil conductors are densely arranged to a region where the belt-like foil conductors are densely arranged on the core body. Grip member.   3. The grip member with an electric heater according to claim 2, wherein in the heat generating layer, in the region where the strip-shaped foil conductors are densely arranged, the length of the strip-shaped foil conductor having a predetermined width is increased and the gap is decreased.   The grip member with an electric heater according to claim 1, wherein a heat conductive layer is provided as the heat diffusion portion on the insulating layer.   The grip member with an electric heater according to claim 1 or 3, wherein the heat generating layer is provided with a portion having low electrical resistance and good heat conduction as the heat diffusion portion.

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