JP2008153042A - Grip member with electric heater - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low-cost grip member with an electric heater, in which heat generated by a heating element is hard to be absorbed by a handle. <P>SOLUTION: A number of hole parts 5 is formed on the surface of a core main body 1 made of synthetic resin, a heating element 11 with an SUS plate with a thickness of around 30 μm processed into a strip state is stuck on the hole parts 5, and synthetic rubber is molded around it. With this, the hole parts 5 on the underside of the heating element 11 serve as an air heat-insulating layer, which, even if it is fitted to a metal handle pipe, heat generated by the heating element 11 is hard to be deprived of. <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. In this case, it is known that 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.

  However, in the grip of Patent Document 1, when the grip is mounted on a metal handle and used, the temperature is lowered due to so-called heat pulling in which heat is taken away by the handle.

  In order to solve this problem, a grip member in which a heat insulating sheet, a film, or the like is mounted between the heating element and the core body is also known.

US Pat. No. 4,990,753

  However, when a heat insulating sheet, a film, or the like is mounted between the heating element and the core, there arises a problem that the diameter increases, the number of assembly steps and the number of parts increase, and the cost increases.

  An object of the present invention is to solve the above-described problems, and to provide an inexpensive grip member with an electric heater in which heat generated by a heating element is hardly absorbed by a handle pipe.

  In order to achieve the above-mentioned object, the technical feature of the grip member with an electric heater according to the present invention is that a grip member with an electric heater mounted on a handle pipe has a concave portion on the surface of a synthetic resin core body made of a cylindrical body. Is formed, a metal conductive plate is attached on the surface of the core body, and a current is applied to the metal conductive plate to generate heat.

  Further, the technical feature of the grip member with an electric heater according to the present invention is that the grip member with an electric heater mounted on the handle pipe forms a large number of bubbles in a core body made of a synthetic resin made of a cylindrical body, A metal conductive plate is affixed on the core body, and a current is applied to the metal conductive plate to generate heat.

  According to the grip member with an electric heater according to the present invention, an effective heat insulation effect can be obtained by providing an air heat insulating layer on the surface or inside of the core body.

  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, for example, in a cylindrical shape from a synthetic resin material in order to be attached to the handle pipe. A ring-shaped portion 2 is provided at the base end of the core body 1, and the ring-shaped portion 2 is formed with an electric wire guide portion 4 that has a support column 3 and supports a power supply line. A large number of small dimple-shaped holes 5 are formed on the surface of the core body 1 during injection molding.

  The shape of the hole 5 is not particularly limited, but is preferably hemispherical, inverted triangular, or inverted trapezoidal as shown in the enlarged sectional views of FIGS. Moreover, although the arrangement position of the hole part 5 does not need to be specifically limited, in order to diffuse heat | fever uniformly, arranging regularly is preferable.

  FIG. 3 is a perspective view showing a state in which a heating element 11 made of a metal conductive plate is stretched and pasted on the core body 1 shown in FIG. The heating element 11 is formed by punching a SUS (stainless steel) plate having a thickness of, for example, about 30 μm into a strip, and is attached to the core body 1 via an adhesive.

  A cable 13 covering the two power supply lines 12 a and 12 b is drawn from the outside into the electric wire guide part 4, circulates around the support column 3, and one power supply line 12 a drawn from the cable 13 is connected to the ring-shaped part 2. It is connected to the start end portion 11a of the heating element 11 in the vicinity by soldering or the like. The other power supply line 12 b is soldered to the end portion 11 b of the heating element 11.

  Since the cable 13 having the power supply lines 12a and 12b is pulled back about 180 degrees in the original direction around the support post 3, even if a pulling force or the like acts on the cable 13 from the outside, the power supply lines 12a and 12b The connection part to the heating element 11 is difficult to separate.

  And after sticking the heat generating body 11 on the surface of the core main body 1, the surface is coat | covered by molding synthetic rubber to the whole. FIG. 4 shows a cross-sectional view of a state in which a synthetic rubber 21 is molded by injection molding to cover the inner and outer surfaces of the core body 1 on which the heating element 11 is disposed. The synthetic rubber 21 has an electrical insulation property, an anti-slip against the gripping hand, and a frictional force against the handle pipe.

  The grip member manufactured in this way is used by being attached to a handle pipe of a motorcycle or the like. When a current is passed through the heating element 11 via the power supply lines 12a and 12b, the heating element 11 generates heat, and the user's hand grip Warm up.

  At this time, even if the heating element 11 is pasted on the core body 1 having a large number of holes 5 and the synthetic rubber 21 is molded, at least the holes 5 on the lower surface of the heating element 11 become a sealed space. The air trapped inside becomes a heat insulating layer, and a good heat insulating effect is obtained.

  Therefore, even if the grip member with an electric heater of this embodiment is attached to a metal handle pipe, the heat generated by the heating element 11 is difficult to be transferred to the handle. In this embodiment, the hole 5 is formed on the entire surface of the core body 1, but the hole 5 may be formed on the surface of the core body 1 where the heating element 11 is attached.

  In the second embodiment, as shown in the cross-sectional view of FIG. 5, grooves 31 facing various directions are formed on the surface of the core body 1 where the heating elements 11 are attached, and the grooves 31 are covered with the heating elements 11. In this way, the air is trapped.

  Further, in Example 3, as shown in FIG. 6, the same effect can be obtained even when the core body 1 is made of a foamable resin having bubbles without providing the holes 5 and the grooves 31 on the surface of the core body 1. can get.

  In Examples 1 to 3, the heating element 11 was simply attached to the surface of the core body 1 using an adhesive. However, in order to facilitate fixing the heating element 11, A guide groove having substantially the same width as the width of the heating element 11 may be formed at a place where the heating element 11 is disposed.

  Moreover, this invention can also combine the structure of Examples 1-3 suitably.

3 is a perspective view of a core main body according to Embodiment 1. FIG. It is an expanded sectional view of a hole. It is a perspective view in the state where a heating element was stuck on a core body. It is a cross-sectional view of a state in which synthetic rubber is molded on the core body. It is a cross-sectional view of a state in which synthetic rubber is molded on the core body of Example 2. It is a transverse cross section of the state where the core main part of Example 3 was manufactured with foaming resin.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Core main body 2 Ring-shaped part 3 Support | pillar 4 Electric wire guide part 5 Hole part 11 Heating element 11a Start end part 11b End part 12a, 12b Feed line 13 Cable 21 Synthetic rubber 31 Groove part

Claims (5)

  In a grip member with an electric heater mounted on a handle pipe, a concave portion is formed on the surface of a synthetic resin core body made of a cylindrical body, a metal conductive plate is attached on the surface of the core main body, and a current is applied to the metal conductive plate. A grip member with an electric heater, characterized by energizing and generating heat.   The grip member with an electric heater according to claim 1, wherein the recess has a plurality of holes.   The grip member with an electric heater according to claim 1, wherein the recess is a groove.   In a grip member with an electric heater to be mounted on a handle pipe, a large number of bubbles are formed in a synthetic resin core body made of a cylindrical body, and a metal conductive plate is attached on the core main body. A grip member with an electric heater, wherein an electric current is applied to generate heat.   The grip member with an electric heater according to any one of claims 1 to 3, wherein the core body and the metal conductive plate are covered with a synthetic rubber.

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