JP4917636B2 - Grip member for handle with electric heater - Google Patents

Description

  The present invention relates to a handle grip member with an electric heater used for grips of motorcycles, snowmobiles, and the like.

  Synthetic rubber grips for handles of motorcycles, snowmobiles, and the like may have a built-in electric heater that warms the hand grip, as shown in Patent Document 1, for example. The electric heater is electrically connected to the feeder line by soldering or welding, and a sheet-like electric heating element is attached to the surface of the cylindrical synthetic resin core, and the periphery is made of synthetic rubber together with the core. Molded and covered.

JP-A-10-67366

  When adjusting the speed of a motorcycle or the like, in order to rotate the grip about its axis, it is preferable that the power supply line to the electric heater in the grip is arranged in an arc shape about the axis.

  However, during the molding process, misalignment, repulsion, deformation, thermal expansion, cooling shrinkage, etc. occur between the electric heating element in the mold and the end of the power supply line due to the injection of the heat-melting synthetic rubber, or the mold When a tensile force is applied to the power supply line from the outside during or after molding, there is a problem in that a large stress is applied to a connection portion such as soldering or welding at the end of the power supply line and disconnection or the like is likely to occur.

  In particular, when a sheet-like heating element formed by arranging a heat source on a flexible electrical insulating sheet is bonded to the surface of a cylindrical synthetic resin core with an adhesive, the above-mentioned problem in molding is caused. Appears prominently.

  An object of the present invention is to provide a grip member for a handle with an electric heater capable of solving the above-described problems and avoiding the generation of stress applied to a power supply line during and after molding of synthetic rubber.

In order to achieve the above object, a handle grip member with an electric heater according to the present invention has a sheet-like electric heating element bonded to the surface of a core body made of a cylindrical body or a semi-cylindrical body, and a feed line to the electric heating element. In the grip member connected to each other, a ring-shaped portion is integrally formed along the arc-shaped end edge of the core body, an arc-shaped base member is attached along the ring-shaped portion, and is drawn onto the base member. Covering the power supply line and a connection portion of the power supply line to the electric heating element with an arc-shaped cover member having a wire groove for accommodating the power supply line, the power supply line drawn out from the cover member, held by a pair of clamping locking pieces provided on the ring-shaped portion, the inner and outer surfaces of said core body being adhered to said electrical heating element, the outer surface of the ring-shaped portion, the outer surface of the base member, the outer surface of the cover member Characterized by being molded by synthetic rubber.
Further, the handle grip member with an electric heater according to the present invention is a grip member in which a sheet-like electric heating element is bonded to the surface of a core body made of a cylindrical body or a semi-cylindrical body, and a power supply line is connected to the electric heating element. And forming the ring-shaped part integrally along the arc-shaped edge of the core body, attaching the arc-shaped base member along the ring-shaped part, and drawing the power supply line drawn on the base member and The connecting portion of the power supply line to the electric heating element is covered by an arc-shaped cover member having a wire groove for accommodating the power supply line, and a plurality of long and short long grooves are formed on the inner surface of the core body, and these long grooves Are arranged alternately, and the inner and outer surfaces of the core body, the outer surface of the ring-shaped portion, the outer surface of the base member, and the outer surface of the cover member are molded with synthetic rubber .

  According to the grip member for a handle with an electric heater according to the present invention, the power supply line and the connection portion at the grip end are covered with the arc-shaped base member and the cover member. Even if a slight misalignment, repulsion, deformation, thermal expansion, cooling shrinkage, etc. occur, or even if a tensile force is applied to the power supply line from the outside during or after molding, a large stress is not applied to the power supply line. There is little risk of disconnection.

It is a perspective view of the grip member for handles with an electric heater. It is a perspective view in the state where a core and an electric heater were separated. It is a perspective view of the state which decomposed | disassembled the electric heater. It is a perspective view of the inner surface of a core main body. It is sectional drawing of the state which overlapped and fixed the edge of the electric heating element.

The present invention will be described in detail based on the embodiments shown in the drawings.
FIG. 1 is a perspective view of the embodiment, FIG. 2 is a perspective view of a state where the core body and the electric heater are separated, and FIG. 3 is an exploded perspective view of the electric heater. The core body 1 that is a skeleton member of the grip is formed into a semi-cylindrical shape by a synthetic resin material, and a ring-shaped portion 2 is provided at the base end of the core body 1 and a ring-shaped portion 3 is provided at the terminal. The electric heater 4 is bonded.

  The electric heater 4 includes a sheet-like electric heating element 5, an electric wire cover 6 and an electric wire 7. In the vicinity of both ends of the outer surface of the core body 1, heater fixing protrusions 8 are integrally projected outwardly, and both edges of the sheet-like electric heating element 5 are inserted at both longitudinal outer edges of the core body 1. A pair of support grooves 9 are formed inward of each other. In addition, a pair of clamping pieces 10 provided with locking claws 10a for supporting the electric wires 7 serving as power supply lines are arranged to face each other as holding parts at appropriate positions on the outer surface of the ring-shaped part 2 at the base end of the core body 1. ing.

  In the sheet-like electric heating element 5, a heating wire 12 is provided on one side of an electric insulating plate 11 made of a synthetic resin, which has an appropriate size and shape suitable for the outer surface of the core body 1 and is bent in a circular arc shape. Is pasted. This heating wire 12 is attached to the electrical insulating plate 11 with, for example, one SUS (stainless steel) foil with an adhesive, and then the entire SUS foil is appropriately punched out by half cutting to remove unnecessary portions, Heating wires 12 made of long and thin electric resistance wires are formed so as to be distributed over almost the entire surface of the electric insulating plate 11 in a series of meandering or zigzag shapes, and are arranged on the side in contact with the outer surface of the core body 1. The thickness of the electrical insulating plate 11 is about 200 μm, and the thickness of the heating wire 12 is about 30 μm.

  Both end portions 12a and 12b of the heating wire 12 are arranged at the base end portion 11a of the electric insulating plate 11, and near the base end portion 11a and the end portion 11b on the opposite side, the heater fixing protrusions of the core body 1 are respectively provided. A fixing through hole 11c into which the child 8 is fitted is formed.

  Furthermore, an electric wire 7 is connected to both end portions 12 a and 12 b of the heating wire 12. The electric wire 7 is provided with a common insulating sheath on the outside of the two power supply wires 7a and 7b that are coated with an insulation coating. The end of the insulating sheath is peeled off, and each of the feeder wires 7a and 7b is further peeled off. The electrical coating is made by peeling off the insulating coating at the tip of the wire and soldering or welding the exposed core wire to both ends 12a and 12b of the heating wire 12, respectively.

  A rectangular tube-shaped wire cover 6 that fits the ring-shaped portion 2 at the base end of the core body 1 is attached to the base end portion 11 a of the electrical insulating plate 11 in an arc shape. The electric wire cover 6 is in contact with the inner surface side of the base end portion 11a of the electric insulating plate 11, covers a connecting portion between the electric wire 7 and both end portions 12a and 12b of the heating wire 12, and the outer surface side thereof. It consists of a connection with a narrow cover member 14 having a U-shaped groove covering and covering the electric wire 7.

  At one end of the base member 13, an electric wire cradle 13 a that enters into one end of the cover member 14 is integrally formed. On the corresponding surface in the cover member 14 that faces the distal end surface of the electric wire pedestal 13 a and the distal end surface. Are formed with a plurality of protrusions for holding and fixing the insulation jacket of the electric wire 7, respectively. A pair of engaging recesses 13c are formed on both side surfaces of the wire cradle 13a, and a pair of corresponding engagements are formed on the inner surfaces of both side walls of one end of the cover member 14 corresponding to the pair of engaging recesses 13c. Protrusions 14b are formed and are fitted and locked together.

  An anchor protrusion insertion hole 11d is perforated at the central portion of the base end portion 11a of the electrical insulating plate 11, and a notch portion 11e corresponding to the wire receiving base 13a is provided at the corner of the base end portion 11a. The base member 13 is formed with an anchor protrusion 13d that is inserted into the anchor protrusion insertion hole 11d.

  Further, a positioning through hole 13e into which the heater fixing protrusion 8 of the core body 1 is inserted is formed at a position adjacent to the anchor protrusion 13d of the base member 13.

  When assembling the electric heater 4, the base member 13 is brought into contact with the inner surface of the base end portion 11 a of the electrical insulating plate 11 so as to cover the connection portion of the power supply wires 7 a and 7 b, and the anchor protrusion 13 d protruding from the base member 13. Is inserted into the anchor protrusion insertion hole 11d of the electric insulating plate 11, the electric wire 7 is positioned on the base member 13, and the cover member 14 is attached thereon. Further, one end portion of the cover member 14 is fitted into the electric wire cradle 13a of the base member 13, and the engagement concave portion 13c and the engagement convex portion 14b are engaged.

  Thereby, the connection part of the electric wire 7 is covered with the base member 13, and the insulation jacket of the electric wire 7 is held and fixed to each other by the electric wire holding portions 13 b and 14 a, and the electric wire 7 is held in the electric wire cover 6. In this case, the connecting portion of the electric wire 7 may be sandwiched between the electric insulating plate 11 and the core body 1 so that only the electric wire 7 is held in the electric wire cover 6.

  Next, the electric heater 4 configured as described above is attached to the outer surface of the core body 1 using an adhesive. At this time, the two fixing through holes 11c of the electric insulating plate 11 and the positioning through holes 13e of the base member 13 are fitted into the two heater fixing protrusions 8 of the core body 1, respectively. Both edges are inserted into the support grooves 9 of the core body 1 and positioned. Further, a part of the exposed electric wire 7 is inserted between the locking claws of the pair of clip pieces 10 of the core body 1 and placed in a fixed position. Thereafter, the tip of the heater fixing protrusion 8 of the core body 1 protruding on the electric heater 4 is melted so that the electric heater 4 does not come out.

  If necessary, an epoxy adhesive or the like is filled between the electric insulating plate 11 and the wire cover 6, between the base member 13 and the cover member 14, and between the electric wire 7 and the pinching pieces 10 of the core body 1. Firmly fix to. Further, synthetic rubber is molded by injection molding on the inner and outer surfaces of the core body 1 with the electric heater 4 assembled by attaching the same half-cylindrical core half part to the cutout part of the semi-cylindrical core body 1. .

  As described above, in the electric wire cover 6, since the engagement concave portion 13 c on the base member 13 side and the engagement convex portion 14 b on the cover member 14 side are engaged, the cover member 14 can be stably and firmly fixed to the base member 13. At the same time, the electric wire 7 can be clamped and fixed by the electric wire holding portions 13b and 14a, and the holding piece 10 with a pair of locking claws 10a is provided on the ring-like portion 2 at the base end of the core body 1, so that the electric wire cover 6 The electric wire 7 drawn out can be stably supported.

  When the synthetic rubber mold is applied to the core body 1 with the electric heater 4 configured as described above, the sheet-like electric heating element 5 and the feed lines 7a and 7b in the mold accompanying the injection of the heated and melted synthetic rubber Misalignment, repulsion, deformation, etc. can be avoided, even if some thermal expansion, cooling shrinkage, etc. occur in each part, or there is a case where tensile force is applied to the electric wire 7 during or after molding However, the presence of the wire cover 6 does not apply a large stress to the connection ends and the soldered portions of the feeder lines 7a and 7b, and no disconnection occurs. Further, since the electric wire 7 is held by the electric wire holding portions 13 b and 14 a of the electric wire cover 6, the synthetic resin material does not enter the electric wire cover 6.

  At the time of molding, a large number of long and short long grooves 15 are alternately arranged on the inner surface of the core body 1 as shown in FIG. The fixing force of the mold synthetic rubber to the core can be increased, and the deviation between the core body 1 and the synthetic rubber can be suppressed.

  In addition, in the above-mentioned Example, although the core main body 1 and the sheet-like electric heating element 5 of the electric heater 4 are formed in a semicylindrical shape, these may be formed in a cylindrical shape.

  In this case, as shown in FIG. 5, without using the support groove 9, the sheet-like electric heating element 5 ′ is formed in a cylinder in a state of being overlapped at both edges, and 2 common to both ends of the overlapped edges. A pair of fixing through holes 11c ′ are formed, and these fixing through holes 11c ′ are respectively inserted into the heater fixing protrusions 8 integrally protruding from the vicinity of the end of the cylindrical core body 1 ′. Can be positioned.

  In this case as well, it is needless to say that both edges of the electric heating element 5 ′ may be fixed using the support groove 9.

DESCRIPTION OF SYMBOLS 1 Core main body 4 Electric heater 5 Sheet-like electric heating element 6 Electric wire cover 7 Electric wire 7a, 7b Feeding wire 11 Electrical insulation board 12 Heating wire 13 Base member 14 Cover member

Claims (3)

In a grip member in which a sheet-like electric heating element is bonded to the surface of a core body made of a cylindrical body or a semi-cylindrical body, and a power supply line is connected to the electric heating element, a ring is formed along the arc-shaped edge of the core body. And the arcuate base member is attached along the ring-shaped portion, and the power supply line drawn on the base member and the connection portion of the power supply line to the electric heating element are connected to the power supply. The electric heating element is covered with an arc-shaped cover member having an electric wire groove for accommodating an electric wire, and the power supply line drawn out from the cover member is held by a pair of clamping pieces provided in the ring-shaped portion, and the electric heating element A handle grip with an electric heater, wherein the inner and outer surfaces of the core body, the outer surface of the ring-shaped portion, the outer surface of the base member, and the outer surface of the cover member are molded with synthetic rubber. Wood. In a grip member in which a sheet-like electric heating element is bonded to the surface of a core body made of a cylindrical body or a semi-cylindrical body, and a power supply line is connected to the electric heating element, a ring is formed along the arc-shaped edge of the core body. And the arcuate base member is attached along the ring-shaped portion, and the power supply line drawn on the base member and the connection portion of the power supply line to the electric heating element are connected to the power supply. Covered by an arc-shaped cover member having an electric wire groove for accommodating an electric wire, and formed a plurality of long and short long grooves on the inner surface of the core body, and alternately arranging these long grooves, the inner and outer surfaces of the core body, A handle grip member with an electric heater , wherein an outer surface of a ring-shaped portion, an outer surface of the base member, and an outer surface of the cover member are molded with synthetic rubber . The grip member for a handle with an electric heater according to claim 1 or 2 , wherein the power supply line accommodated in the wire groove of the cover member is sandwiched and held by a sandwiching portion of the base member.

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