JPH0353985Y2 - - Google Patents

Description

[Detailed Description of the Invention] <<Industrial Application Field>> The present invention relates to a grip with a built-in heater for use in the handle of a motorcycle or the like used in a cold region.

<Prior Art> Fig. 10 shows an example of the structure of a conventional grip with a built-in heater of this type.
is wrapped around a heater fixing pipe 22, and then covered with a soft resin such as thermoplastic elastomer to provide a grip portion 23.

<<Problem to be solved by the invention>> However, the above-described grip with a built-in heater has a small heat generating capacity due to the use of the surface heater 21, and is of no practical use in the handle part of a motorcycle where the wind is directly cut. In addition, the mechanical strength is relatively weak, and it is easy to cause damage such as wire breakage if the wire comes into contact with the wire due to falling or the like.

<Means for Solving the Problems> The present invention is a concrete means for solving the above-mentioned problems of the conventional technology.The present invention provides a heater fixing device made of hard resin and attached to the handlebar for grips such as motorcycles that have a built-in heater. Heater fixing ribs are made to protrude radially from the pipe, and a plate-shaped heater that meanders back and forth and has a power connection part formed at the end is fitted into the heater fixing rib. By providing a grip with a built-in heater, which is characterized by being integrally covered with a thermoplastic resin, the above-mentioned conventional problems can be solved by providing a grip with strong mechanical strength and excellent heat capacity.

<<Example>> Next, the present invention will be described in detail based on an example shown in the drawings.

The reference numeral 1 in Fig. 1 is a grip with a built-in heater according to the present invention (hereinafter abbreviated as grip 1).
The grip 1 is assembled using a heater fixing pipe 2 made of hard resin such as nylon resin and formed into a shape suitable for attachment to the handlebar 10 of a motorcycle as a base, and includes a hook for opening and closing the throttle. The portion 2a, the plate-shaped heater 3, the grip portion 4, the power cord 5, etc. are integrally provided.

FIG. 2 shows the heater fixing pipe 2 and the plate-shaped heater 3 in detail. The heater fixing pipe 2 is provided with an appropriate number of heater fixing ribs 2b radially, as shown expanded in FIG. A plate-shaped heater 3 having a meandering shape is fitted therein. Here, the heater fixing pipe 2 is made of a hard resin such as nylon resin that has excellent heat resistance and mechanical strength, and the plate heater 3 is made of a nichrome or stainless steel plate with an appropriate thickness (for example, 0.1 mm). It is formed by punching or the like. It is preferable that the heater fixing pipe 2 is subjected to a foaming treatment to increase its heat insulation properties as far as its strength allows, so as not to transmit the heat generated from the plate-shaped heater 3 to the handle 10 side and cause loss.

FIG. 4 shows the hook part 2a of the throttle wire of the heater fixing pipe 2. When the grip 1 is for a right-hand user, a wire for opening and closing the throttle is attached, and for this reason, the hook part of the grip 1 has considerable strength. 2a, only the hook portion 2a is made of a material that is not subjected to the foaming treatment described above and is integrated by insert molding.By doing this, the heater fixing pipe 2 is It becomes possible to achieve both strength and heat insulation.

FIG. 5 shows the plate heater 3 and the power cord 5.
The approximately ring-shaped cord attachment fitting 6 shown in FIG. 6 is fixed to the heater fixing pipe 2 by press fitting, etc.
The power cord 5 connected to the power cord 5 is fixed by caulking.

By doing as described above, all the parts such as the hook part 2a, the plate-shaped heater 3, and the power cord 5 are attached to the heater fixing pipe 2 in one piece. The integrated grip 1 of the present invention is completed by molding with a soft resin such as elastomer.

By doing so, it becomes possible to use the plate-shaped heater 3 whose calorific value can be freely set by changing the plate thickness.

FIG. 7 shows another embodiment of the present invention. For example, when the heater fixing pipe 2 and the hook portion 2a are integrally formed of the same material, the plate-shaped heater 3 Before fitting, a heat insulating sheet 7 made of, for example, asbestos and having the shape shown in FIG. 8 may be attached so as to be clamped.

FIG. 9 shows yet another embodiment of the present invention, in which the previous embodiment has a heat insulating sheet 7 interposed between the plate heater 3 and the heater fixing pipe 2 to improve heat insulation. On the other hand, a concave portion 2c is formed on the side of the heater fixing pipe 2 that comes into contact with the handle 10 in an area that substantially corresponds to the area where the plate heater 3 is laid, and according to the inventor's experiment. According to this, by setting the depth of the recess 2c to 1 mm or more, it is possible to substantially eliminate the loss caused by conduction from the plate heater 3 to the handle 10.

<<Effects of the invention>> As explained above, the present invention provides a structure in which a heater fixing rib is provided on the heater fixing pipe and a plate-shaped heater is fitted therein, so that it is easy to change the thickness of the plate-shaped heater, for example. It is said that the amount of heat generated can be adjusted freely by various means, solving problems such as insufficient heat retention, and since it is made of metal, it improves mechanical durability and prevents unexpected accidents such as wire breakage. It has excellent effects.

Further, by fitting a heat insulating sheet between the plate-shaped heater and the heater fixed pipe, or by providing a recess in the contact surface of the heater fixed pipe with the handle, heat generated by the plate-shaped heater is prevented from being conducted to the handle. It also has the excellent effect of increasing the amount of heat that can be used for heating with the same power consumption, and further enhancing the heating effect.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of an embodiment of the grip with a built-in heater according to the present invention;
The figures are a perspective view showing the main parts of the same embodiment, Fig. 3 is a plan view showing the plate heater in an expanded state, Fig. 4 is a sectional view taken along the - line in Fig. FIG. 6 is a perspective view showing the cord mounting bracket, FIG. 7 is a sectional view showing the main part of another embodiment of the present invention, and FIG. 8 is a plan view showing the heat insulating sheet in an expanded state. Similarly, FIG. 9 is a sectional view of a main part showing still another embodiment of the present invention, and FIG. 10 is an exploded perspective view of the conventional example. DESCRIPTION OF SYMBOLS 1...Grip with built-in heater, 2...Heater fixing pipe, 2a...Hook part, 2b...Heater fixing rib, 2c...Recessed part, 3...Plate heater, 4...Grip part, 5...Power cord , 6... Cord mounting bracket, 7... Heat insulation sheet, 10... Handle.

Claims (1)

[Claims for Utility Model Registration] (1) In a motorcycle grip with a built-in heater, a heater fixing pipe made of hard resin and attached to the handle has heater fixing ribs protruding radially, and the heater is fixed. A grip with a built-in heater, characterized in that a power connection part is formed at the end of the rib, and a plate-shaped heater that meanders back and forth is fitted into the rib, and the plate-shaped heater is covered and integrated with a soft thermoplastic resin that serves as a grip part. . (2) The grip with a built-in heater according to claim 1, wherein the heater fixing pipe is made of a hard resin foam. (3) The grip with a built-in heater according to claim 1, wherein a heat insulating sheet such as asbestos is fitted between the heater fixing pipe and the plate-shaped heater. (4) A utility model according to claim 1, characterized in that a recess is formed on the side of the heater fixing pipe in contact with the handle, substantially corresponding to the mounting range of the plate heater. Grip with built-in heater. (5) Utility model registration claims 1, 2, and 3, characterized in that the heater fixing pipe has a hook part for opening and closing the throttle integrally formed by insert molding or the like. The grip with a built-in heater as described in item 4. (6) Utility model registration claim 1, characterized in that the heater fixing pipe is integrally provided with a cord fixing metal fitting, and a power cord for the plate-shaped heater is fixed to the cord fixing metal fitting. A grip with a built-in heater as described in Items 1, 2, 3, 4 and 5.