JPS60176674A - Injection ski and its production - 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 The present invention relates to an injection ski and a method for manufacturing the same, and more particularly to an injection ski that has a side plate for an improved appearance and an efficient method for manufacturing the same.

An injection ski has been developed in which a foamable synthetic resin liquid is injected into the gap between the two lower surfaces of the ski.

FIG. 1 shows a general method for manufacturing the injection ski.

That is, the ski upper and lower surface image constituent members are arranged in the mold with a gap corresponding to the thickness distribution of the center core, and the front and rear 10 texturers are placed on the front and rear f4+ parts of the ski's lower surface and both constituent parts. The protectors are held together, and the front protector 10
Resin 11ν from the resin liquid passage A provided on the outer periphery of the front protector 10 and the notch 12 provided on the front surface of the front protector 10
There is a known manufacturing method in which the resin liquid is distributed from passage B (G Publication No. 58-49267). When the above method Q occurs, the front and rear protectors do not obstruct the flow of the resin liquid, so make sure to make sure that both protectors are in place. It has the advantage that it can be assembled into a mold and fixed at the same time by the injected resin liquid.

However, since the resin liquid iJl 8 is to be passed through the side wall of the ski and the 401 fat liquid is passed through the side wall of the ski, a circulation space is required on the 1Jl 11 wall, and a surface measuring plate is provided. If this space is blocked (^1) it becomes impossible to inject the liquid. Therefore, in the conventional insoexhojiski, the 48J fat liquid is directly exposed on the side wall, making it unsightly.

Also, in the injection cedar:
The edge fittings must be positioned and fixed by some means so that they do not move even when resin liquid is injected. Conventional methods for fixing edge fittings include positioning and fixing the edge fittings by incorporating multiple presser pins that press the top surface of the edge fittings into the inside wall of the mold, or embedding magnets in the predetermined positions of the lower part of the molding die. The edge fitting is positioned and fixed within the mold by the suction force of the magnet.

However, in the case of the former method, in addition to the trouble of inserting and removing the presser pin into the mold, the ski U1 after molding. 'l There is a zoni that leaves holes from presser pins in the wall. In addition, when the latter occurs, the edge fitting may move due to the resin pressure since physical pressure is not effective.

The present invention has been made in view of the above point):1, and its object is to provide an injection cedar which can be finished with a good appearance by having one face plate, and an efficient manufacturing method thereof. The present invention provides an injection ski in which a foamable synthetic resin liquid is injected and filled into a gap between a ski upper surface component and a ski lower surface structure y;+<+a including an edge fitting. A side plate is provided to cover the gap between the "ski" two-face component and the edge fitting.In addition, a gap corresponding to the thickness distribution of the core is provided in the mold to include the edge fitting. Arranging the ski lower surface component shrine and the ski's two surface component members,
A side plate having an appropriate adhesive applied to the outer wall of the inner circle of the mold is fixed by adhering it with the adhesive so as to press the edge fitting with the lower surface of the side plate and position it, and then fix it in the gap. This is where the foaming resin liquid is injected and filled.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to drawings No. 16 and 16.

In Figure 2, 10 is 8 rl S 1.1 fat sheet,
22 The inner part is made of glass cloth, etc. l (? i!
to accomplish. 24 is a sole system, 26 is a lower surface reinforcement +J, 28 is an internal reinforcing material made of glass cloth, etc., and -) A ski lower surface component is made of paulownia. The above-mentioned ski lower surface component part and ski "two surface component member" is the inside of the mold consisting of the lower mold 30 and the upper mold 32 so as to have a predetermined gap corresponding to the thickness distribution of the center core of the ski. will be placed in 3
4 is an edge fitting, and 36 is a side plate. As shown in FIG. 3, the side plate 36 has a double-sided adhesive tape 38 attached to its outer surface as an adhesive, and when placed in the mold, the double-sided adhesive tape 38 seals the inner wall of the lower mold 30 It is fixed with adhesive to prevent it from collapsing inward. Also, the side (anti-3
6 is inserted between the edge metal fitting 34 and the BS resin sheet 20, and when it is fixed to the inner wall of the lower mold 30 with the double-sided adhesive tape 38, the upper surface of the Fuji metal fitting 34 is inserted at -FJ. Press and work/nojikin! 't34 is fixed in a predetermined position so that the machining and sawing metal fittings 34 do not move even when the resin liquid is injected.

FIGS. 4 and 5 are explanatory views showing examples of the front protector 40 and the rear protector 42, respectively. 111).

The rotilifter 40 and the rear protector 42 are placed in the mold so as to be held at predetermined positions G in the front and rear parts of both the upper and lower surfaces of the ski. In this case, as shown in the sixth section, the side plate 36α111 surface is the front surface.

The front protector 40 is positioned by inserting and coupling the front end of the edge fitting 34 into a notch 44 which is disposed so as to come into contact with the end surface of the rotary protector 40 and which is provided on the lower surface of the front protector 40. In addition, the rear block 42 has a step portion 46 provided on the negative side of the rear block 42, and the two-face component fA f7i! A is the abutting cage.

At the same time, it is held in a predetermined position by being pressed by a holding jig 48 from behind.

Note that 50 is a fixing piece provided on the front protector 40 and the rear protector 42.

Rear protector 4? As shown in FIGS. 5 and 7, an elongated resin injection port 52 is opened at approximately the center in the lower direction and approximately at the center in the longitudinal direction.

Further, the presser jig 48 has a resin flow path 54 formed on its front end surface that is opened in an elongated hole shape to match the elongated hole-shaped resin injection "I52" and circularly opened on the rear θfM surface. Further, the holding jig 48 is formed into a split mold so as to be split along the resin flow path 54. 5G is a resin liquid injection tube whose tip is inserted into the circular part of the resin flow path 54. A resin liquid injection nozzle 58 is connected to the rear end.

Therefore, each of the above-mentioned parts is arranged in the mold so that it is located at the above-mentioned predetermined position, and from the resin liquid injection nozzle 58, via the resin liquid injection tube 56, the resin flow path 54, and the resin injection port 52. By injecting the resin liquid into the gap between the ski and the lower surface component 4n and foaming it, the desired injection ski is made! :F is rejected.

Therefore, by fixing the fixing pieces 50 in the resin liquid, the front and rear protectors are simultaneously fixed at predetermined positions on the front and rear ends of the upper and lower ski surface components. After foaming is completed, the resin liquid injection tube 56 is removed from the resin flow path 54 and the resin liquid injection nozzle 58 and discarded, and by swinging the holding jig 48, the holding jig 48 and the resin liquid injection port 52 are removed.
The resin between the parts can be bent and folded, and the resin liquid injection port 52 can be completed by simple finishing. Note that the holding jig 48 may be split along the dividing line to expose the resin filled in the resin flow path 54, and finishing may be performed by cutting or the like. Further, the holding jig 48 does not necessarily have to be formed into a split mold, but if the resin flow path 54 is formed into a tapered shape, the resin clogged inside can be easily pulled out.

FIG. 8 shows another embodiment of the injection method. As in this embodiment, the resin liquid injection nozzle 58 can be directly fitted into the resin channel 54 to inject the resin.

However, as described above, it is better to use the resin liquid injection tube 56 to prevent the resin liquid injection nostle 58 from moving toward and away from the resin flow path 5.
4, but the manufacturing process can be simplified.

Note that even if the resin injection port 52 is installed in the front protector 40 instead of the rear inlet 2, the same effect can be obtained.

After molding, the ski is removed from the mold and the adhesive attached to the outer wall of the side plate 3G or the inner wall of the mold is removed.

As described above, the injection ski according to the present invention has a side panel, so it has an extremely good appearance and has commercial value.

Furthermore, according to the method of the present invention, the side plate does not fall inward to the mold during injection of fat into the mold, and the edge fittings are made of 4AI.
Every time it moves due to the pressure of the fat liquid, etc. (, efficiency <B'
, I! Be effective in being able to create.

The present invention has been variously explained above using preferred embodiments, and the present invention is based on these embodiments. It is natural that many modifications may be made without departing from the spirit of the invention.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a conventional resin liquid injection method. Fig. 2 is a sectional view showing a state in which the constituent members of a ski are assembled into a mold according to the method of the present invention, Fig. 3 is an explanatory view of the side plate, Fig. 4 is an explanatory view of the front part II technique, and Fig. 5 is an explanatory view of the front plate II technique. The figure is an explanatory diagram of the rear protector. FIG. 6 is an explanatory view showing the relationship among the side plate, edge fitting, and front protector, and FIGS. 7 and 8 are explanatory views showing the 4MI IIf'I liquid injection method. 10... Front protector, 12... Notch. 20... 8It S 4?6J Fat Sea 1-. 22...
Inner fil curvature 111 reinforcement material, 24... Sole material, 26. Lower bend reinforcement month, 28.. Internal reinforcement, 30.. Lower mold, 32.. Upper mold, 34. Edge metal fittings, 36. ...
Side plate, 38...double-sided adhesive tape, 40...1ii
j protector, 42...rear protector, 4.1...
Notch part, 4G...Step part 2 48...Press jig,
50...Fixing piece, 52...Resin injection port, 54...
Resin channel, 56...tube for resin liquid injection. 58...Resin liquid injection nozzle. Figure 110i Figure 1 (1) 21st section 1. 34 28 b2 2624 Drawing number: 3 Figure 11゛〈4 ml 51st agent 7I'l1 0 61st separate 44 34 Drawing 2 81''?i

Claims (1)

[Scope of Claims] (1) In an injection ski in which a foamable synthetic resin liquid is injected and filled into the gap between the ski upper surface component color, texture, and the ski lower surface component layer including metal fittings; An injection ski consisting of a two-sided structure (with a side plate L that covers the gap between the shrine and the edge fitting). 2. Arrange the ski lower surface component part including the edge fittings and the ski's two-face component part with a gap corresponding to the thickness distribution of the center core in the mold, and place them on both side walls inside the mold. A side plate with an appropriate 1'11 adhesive applied to the outer wall is fixed by pressing the edge metal odor on the underside of the side plate and adhering it with the adhesive so as to position it. A method for manufacturing an injection ski, characterized by injecting and filling a liquid.