JPS6317015A - Manufacture of non-skid member for vehicle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing an anti-slip member molded from rubber or synthetic resin, which is attached to a vehicle tire as an anti-slip member on a snowy day. It is something.

(Prior Art) Conventionally, in the manufacturing method of this type of anti-slip member, the entire core material is molded from rubber or synthetic resin, and a plurality of core members are arranged in parallel at required intervals inside, and both ends of the anti-slip member. For example, a core member consisting of a locking member located at a portion of the core member and integrally orthogonally connected to both ends of the core member is integrally molded.
It is publicly known as in the publication No. 3-64271.

(Problems to be Solved by the Invention) However, in the conventional manufacturing method described above, the core material of the core member is made of a material having considerable self-elasticity such as wire, and when molding the cleaned member, the upper mold When engaging the support member provided in the cavity for molding the non-slip member formed by the core and the lower mold, the self-elastic force makes it difficult to engage the support member, and Not only was there a problem that the locking state was unstable as it easily came off even after locking, and workability was extremely poor, such as requiring time and effort to lock the core material, but as a result of the above, the core material The core material is not integrally molded in an accurate and stable position, and when the core material is mounted on a tire and used, the latent acting force causes the core material to restore its straight shape due to self-elastic force; Problems include the fact that a separation phenomenon occurs between the core member and the elastic body due to outward tensile force or twisting force applied to both ends of the anti-slip member, and the anti-slip member is easily damaged. was there.

The present invention solves the above-mentioned problems, and allows the core member having self-elastic force to be easily, reliably, and stably locked to the support member provided in the cavity for molding the anti-slip member, thereby allowing the work to be carried out quickly and smoothly. When the core material is bent and molded into the same shape as the elastic body and is firmly bonded to the elastic body with adhesive, the anti-slip material is To provide a method for manufacturing a non-slip member for a vehicle, which does not cause separation between the core member and the elastic body even when outward tensile force, twisting force, etc. are applied to both ends, and is not easily damaged. The purpose is to

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention uses an elastic body such as rubber or synthetic resin to have an inner shape and a required width that can fit the outer peripheral surface and both side surfaces of the tire. Inside the formed anti-slip member, a plurality of core materials arranged in parallel at required intervals and located at both ends of the anti-slip member,
In the method for manufacturing a non-slip member for a vehicle, in which a core member consisting of a locking member integrally orthogonally connected to both ends of the core member is integrally molded, the core member of the core member is preliminarily attached to the non-slip member. The core material and the locking member are bent and molded into approximately the same shape as the above-mentioned core material and the locking member are coated with adhesive, and the core material to be hidden is formed by the upper mold, the core, and the lower mold when molding the anti-slip member. The locking members of the core member are locked to the supporting members provided in the cavity for molding the anti-slip member while maintaining the parallel spacing, and the locking members of the core member are fixed to the sliding members provided in the lower parts of both sides of the cavity for molding the anti-slip member. The stop member is configured such that the stop member is locked to the lower surface of the member for forming the engagement portion at both ends, and while the stop member is hidden, the anti-slip member raw material is injected under pressure into the cavity for molding the anti-slip member and integrally molded. It is something.

(Function) As shown in FIG. 4, the core materials 4a, 4a are bent and molded in advance into substantially the same shape as the anti-slip member, and the core materials 4a, 4a are
The entire locking member 4b is coated with adhesive 4C, and the core member 4 is placed inside the anti-slip member molding cavity 13 formed by the upper die 6, the core 8, and the lower die 7 as shown in the first figure. The core material 4a is housed in the core material 4a.

4a to the support members 14, 14 while maintaining parallel spacing, and the locking member 4b of the core member unit,
The piston head 10 is engaged with the lower surface of the non-slip member both end engaging portion forming members 15 and 15 located at the lower portions of both sides in the anti-slip member molding cavity 13, and in a hidden state, the piston head 10 is moved as shown by the arrow in the figure. When the piston head 1 is lowered, the piston head 1
The non-slip member raw material (rubber or synthetic resin material) 11 is pushed into the anti-slip member molding cavity 13 from the flow opening 12.12 in the recess of the bot 9 by the pressing force caused by the downward movement of the core material 4a, 4a and a locking member 4b,
4b is molded integrally with the anti-slip member raw material 11. After molding, the bot 9 is removed and the anti-slip member 1 is vulcanized. After the vulcanization is completed, the upper mold 6 and the lower mold 7 are separated and disassembled, and the molded and vulcanized anti-slip member 1 is made of rubber. Alternatively, since the raw material is synthetic resin, etc., when peeling it off from the core 8, it can be easily separated from each of the support members 14.14 and the engaging portion forming member 15.15 by utilizing its elastic flexibility. can do. Note that during the above molding, the core materials 4a, 4a constituting the core member 4
are bent and molded in advance into substantially the same shape as the non-slip member, and are bonded with adhesive 4cffiI to the entire surface thereof, and are positioned relative to each other in the upper die 6 and the core 8 within the anti-slip member molding cavity 13. The supporting members 14 and 14 are supported in a staggered manner, and the core member 4a.

The locking members 4b at the ends of 4a are locked to the lower surface of the member 15.15 for forming the engaging portions at both ends of the non-slip member, which are provided at the lower parts of both sides of the core 8 in the cavity 13 for molding the non-slip member. Since it is a lock, the core member is inserted into the cavity 1 for molding the anti-slip member.
As a result, the core materials 4a, 4a move within the anti-slip member molding cavity 13 due to the pressure at the time of raw material injection, and the parallel spacing and the M-stage position can be adjusted. The core member 4 and the elastic body can be reliably molded at the predetermined position in the mold without collapsing, and the presence of the adhesive 4C makes the adhesion between the core member 4 and the elastic body even stronger. . Also, a locking member 4b forming the core member unit.

4b is locked to the lower surface of the member 15.15 for forming the engaging portions at both ends of the non-slip member in the cavity 13 for molding the anti-slip member. After molding, the locking portions 1c at both ends of the anti-slip member 1
The locking members 4b, 4b are securely attached to the lower part of the locking portion (see FIG. 1).
It is molded adjacent to the

(Example) Fig. 1 to Fig. 9 show an embodiment of the present invention, Fig. 1 is a longitudinal sectional front view of a mold, Fig. 2 is a perspective view of a core with a core member and a spike member attached, FIG. 3 is an enlarged perspective view of the same part, and FIG. 4 is a perspective view of a core member that has been bent and molded in advance into approximately the same shape as the anti-slip member, and the entire surface of which has been coated with adhesive and dried.
Figure 5 is an enlarged side view of the same part, Figure 6 is a perspective view of the molded product,
Figure 7 is a front view of the anti-slip member attached to the tire;
Figure 8 shows Figure 7 II-I [enlarged sectional view, Figure 9 (a) (
b) is a partially enlarged perspective view showing eight examples of anti-slip member attachment parts.

First, the anti-slip member manufactured by the present invention will be explained.

The anti-slip member is made of rubber, synthetic resin, etc. and has an inner shape and a required width that can fit the outer peripheral surface B and both side surfaces C of the tire A. A side opening cutout groove 1b, a locking part 1C for the fixing fitting consisting of a lb-shaped engaging hole 1a, la, or a simple engaging hole 1a, 1a as shown in FIG. 9(b) are provided, and the inside thereof is A core member unit consisting of a plurality of core members 4a arranged in parallel with a required interval and a locking member 4b integrally orthogonally connected to both ends of the core member 4a is attached to the core member unit. Both end locking members 4b are located directly above the fixing fitting locking portion 1C (the ninth
(see figure), which are integrally molded in a substantially horizontal state adjacent to each other. The flat core material 4a is made of, for example, wire, synthetic fiber, carbon fiber, or other suitable strong material, and is bent and molded in advance into approximately the same shape as the anti-slip member, and the locking member 4b is made of, for example, die-cast material. It is made of a rigid rod-shaped body or other metal rod-shaped body that can be caulked. 4C is an adhesive for adhering an elastic body, which is applied and dried over the entire surface of the core member 4, and has commercially available names such as Typly LJ201 and Chemlock 252 (
It is similar to the one sold by Tokyo Matsutsu Shoten Co., Ltd. In addition, the fixing bracket has a caulking part 3a made by bending a metal bar into a U-shape, for example, and the leading end of the image can be locked into the engagement holes 1a, 1a of the anti-slip member as shown in FIG. (a) - and (b) to bend the locking parts 3b, 3b or 3°b,
It is set at 3°b. Reference numeral 5 denotes an inner side surface portion 1d1.5 immediately below the fixing fitting locking portion at each end of the anti-slip member unit. : This is a protrusion provided at the end of the core material to prevent fatigue.

6 is an upper mold for molding, 7 is a mold, 8 is a core, 9 is a pot, 10 is a piston head, and raw material (rubber or synthetic resin material) 11 is a flow port 1 in a concave portion of the bot 9.
2.12 to the cavity for molding the anti-slip member formed by the upper mold 6, core 8, and lower mold 7 (mold part to be molded)
13 by the pressing force generated by the downward movement of the piston head 10. In addition, the core members 4a, 4a constituting the core member ridge are provided on the hollow portion forming surfaces of the upper mold 6 and the core 8, respectively, in order to maintain their parallel spacing and buried position, and to protrude from each other at mutually shifted positions. The locking members 4b, 4b at the ends of the core members 4a, 4a are supported by a pair of anti-slip members protruding from the lower portions of both sides of the cavity forming surface of the core 8. Joint forming member, 1
5.15 to ensure that the core member is supported within the cavity 13 for molding the anti-slip member. In particular, the core members 4a, 4a are provided with positioning recesses 16 in the supporting members 14.14.
．． 16, and by fitting thereto, reliable support can be achieved.

Reference numerals 17 and 18 designate a mold matching protrusion for each mold, 19 a raw material container, 20 a part of the cylinder, 21 a heating element, 2 a lobe, D a tightening tool, and E a road surface.

(Effects) As explained above, according to the present invention, an elastic body such as rubber or synthetic resin is used to prevent slipping from inside the anti-slip member, which is formed with an inner shape and a required width that can fit the outer peripheral surface and both side surfaces of the tire. , a core member consisting of a plurality of core members arranged in parallel at required intervals and locking members located at both ends of the above-mentioned oxidation-preventing member and connected integrally orthogonally to both ends of the above-mentioned core member; In a method of manufacturing a non-slip member for a vehicle that is integrally molded, the core material of the core member is bent and molded in advance into substantially the same shape as the non-slip member, and an adhesive is applied to the core material and the locking member. When molding the anti-slip member, the core material is held in parallel to the support member provided in the cavity for molding the anti-slip member formed by the upper mold, the core, and the lower mold. At the same time, the locking members of the core member are locked to the lower surfaces of the members for forming the engagement portions at both ends of the cleaning member provided at the lower portions of both sides in the cavity for molding the anti-slip member, and in the hidden state, the locking members of the core member are Since the material for the anti-slip member is injected under pressure into the cavity for molding the anti-slip member and integrally molded, when molding the anti-slip member, the cleansing material formed by the upper mold, core, and lower mold is removed. When locking the core material of the core member to the support member provided in the cavity for molding the stopper member, the core member is bent and molded in advance into approximately the same shape as the non-slip member, so the locking operation is easy. In addition to this, since the entire core member is coated with adhesive II, the adhesion between the core member and the elastic body becomes even stronger. When used attached to a tire, even if outward tensile force or twisting force is applied to both ends of the locking member, no separation phenomenon occurs between the core member and the elastic body, and it is easily damaged. This has the effect of making it possible to manufacture a non-slip member for a vehicle at a low cost.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal sectional front view of a mold, Fig. 2 is a perspective view of a core with a core member and a spike member attached, Fig. 3 is an enlarged perspective view of a part of the same, Fig. 4 is a perspective view of a core member that has been bent and molded in the same shape as the anti-slip member in advance and dried with mW of adhesive on the entire surface, Fig. 5 is an enlarged side view of the same part, and Fig. 6 is a perspective view of the molded product. Fig. 7 is a front view of the anti-slip member attached to the tire, Fig. 8 is an enlarged sectional view of Fig. 7 - ■, and Fig. 9 (a) and (b) are 8 of the anti-slip member attachment part. It is a partially enlarged perspective view showing an example. U... Anti-slip member, 1a... Engagement hole, 1b... Side opening notch groove, 1C... Fixed metal fitting locking part, 1d...
Inner side part, 2... Lobe, Dan... Fixing metal fittings, 3a.
... Caulking part, 3b... Locking part, hill... Core member, 4
a... Core material, 4b... Locking member, 4C... Adhesive, 5... Core material end fatigue prevention protrusion, 6... Upper mold for mold, 7... Lower mold , 8... Core, 9... Pot, 10... Piston head, 11... Raw material, 12...
...Flow port, 13...Cavity part for molding anti-slip member, 14
. . . Support member, 15 . . . Non-slip member both end engagement portion forming member, 16 . . . Positioning recess, 17, 18 . . . Mold matching projection, 19 . ... Cylinder part, 21... Heating element, A... Tire, B...
Outer circumferential surface, C...Both sides, D...51! ! Fastener, E.
...Road surface. Figure 7 U＼゛ 6 Figure 9 (0)

Claims (1)

[Claims] A plurality of core members arranged in parallel at required intervals inside an anti-slip member made of an elastic material such as rubber or synthetic resin and having an inner shape and a required width that can fit the outer peripheral surface and both side surfaces of the tire. and a method for manufacturing a non-slip member for a vehicle, comprising integrally molding a core member consisting of locking members located at both ends of the non-slip member and integrally orthogonally connected to both ends of the core member. , the core material of the core member is bent and molded in advance into substantially the same shape as the anti-slip member, and an adhesive is applied to the core material and the locking member, and the hidden core material is molded into the anti-slip member. At this time, the locking member of the core member is locked to the support member provided in the anti-slip member molding cavity formed by the upper mold, the core, and the lower mold while maintaining the parallel spacing, and the locking member of the core member is A non-slip member material is pressurized and injected into the non-slip member molding cavity in a state in which the non-slip member provided at the lower portions of both sides in the cavity for molding the member is locked to the lower surface of the member for forming the engagement portion at both ends and hidden. A method of manufacturing a non-slip member for a vehicle, characterized in that the anti-slip member for a vehicle is integrally molded.