CN1074854A

CN1074854A - The closely connected moulding manufacture method of helmet shell and inner buffer layer

Info

Publication number: CN1074854A
Application number: CN 92100526
Authority: CN
Inventors: 陈耀东
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-01-30
Filing date: 1992-01-30
Publication date: 1993-08-04

Abstract

The closely connected moulding manufacture method of a kind of helmet shell and inner buffer layer, the housing that it is characterized in that safety cap is the whole housing by the impact resistance forming materials, high pressure resistant and the bump of its energy, during manufacturing housing is inserted in the die body master mold of a homotype, stretch into the recessed portion of master mold in addition from a male model, then from male model shooting foaming material to inner walls, and be full of space between male model and the housing, this buffer body can be close to the attached shell inner surface that takes shape in, make between housing and buffer body and do not have the gap, integral coherence is good, thereby makes the safe of safety cap.This method is made simple, and speed is fast, so the production efficiency height.

Description

The closely connected moulding manufacture method of helmet shell and inner buffer layer

The present invention is the closely connected moulding manufacture method about a kind of helmet shell and inner buffer layer.

Raising along with people's living standard; the style life becomes increasingly abundant; the numerous and confused appearance of motion such as the fearful skill of free car, offroad vehicle, locomotive of pursuit speed or stimulation pleasant sensation, HTCC, hockey, baseball; the participant of these motions often needs safe safety cap to protect head for personal safety.Common safety cap, the foam-filled body 200(of its housing 100 and internal layer buffering usefulness is referring to accompanying drawing Fig. 1) be two be shaped to semi-finished product separately after, the fit that is harmonious again.Because both are the semi-finished product with circular arc of moulding separately, are easy to generate the gap after the cooperation between the two, this safety cap is when running into fast or during the high pressure collision, this gap can make the wearer cause more serious injury because of secondary impact; And it is slow to make work efficiency respectively, the cost height.

The object of the present invention is to provide the manufacture method of a kind of helmet shell and the closely connected moulding of inner buffer layer, this method program is simple, quick, integral coherence is good, and housing is an overall structure, and housing and inner buffer layer do not have the gap because of closely connected, so safe.

The present invention is achieved in that earlier with the whole housing of synthetic plastic moulding one high pressure resistant crash-proof, this housing is inserted in the master mold of a mould, and will have the male model of passage of being connected with the shockproof filling material of foaming and be embedded on the master mold, and make between the inner wall of the end face of male model and cap shell and leave the gap, the passage of male model communicates with the gap, in the gap, inject the shockproof packing material of foaming from the passway and moulding then obtains the safety cap that a globality and housing and inner buffer layer are close bonding structure.

The present invention is further described below in conjunction with accompanying drawing.

Description of drawings:

Fig. 1 is common safety cap structural representation.

Fig. 2 is arranged at the longitudinal section of master mold for a kind of helmet shell of the present invention.

Fig. 3 is the longitudinal section that male and female mould of the present invention cooperates.

Fig. 4 is the three-dimensional longitudinal section of embodiments of the invention.

Fig. 5 is the stereo appearance figure of another embodiment of the present invention.

The name of numbering among the figure is called:

10. housing, 100. shell bodies, 101. ears, 11,102,202. air-vents, 20. application layers, 200. fill material, 201. flange, 21. bending edges, 22. sprue gates, 30. foam filled material buffer body, 300. interior lining cloth, 400. sponge crash rolls, 500. the fastener tape group, 501. boxes, 502. pin threads, A. male model, the B. master mold.

By Fig. 2, shown in 3: the closely connected moulding manufacture method of helmet shell of the present invention and inner buffer layer, it is characterized in that high pressure resistant for by the impact resistance forming materials of housing 10, the whole housing of bump, the buffer body that riddles in the housing is foam filled material buffer body 30, when making, it earlier housing 10 is inserted in the die body master mold B of a homotype, stretch into the recessed portion of master mold in addition with a male model A, form the gap in male model A and the housing, the shooting foaming material is to inner walls and be full of space in male model B and the housing from male model, foam filled material buffer body promptly closely attaches moulding, pulls up public affairs, female A, the B mould.

By Fig. 3,4 as seen: housing 10 lower edges bottoms can be and is bent to form an iner ledge 21 from outside to inside, and housing 10 surfaces or inner surface can have an application layer 20.

Gap between expanded material of the present invention can be incident upon in male model A and the housing 10 by passage by the sprue gate on the male model 22 makes it condense into an inner buffer layer 30.And this buffer body and housing 10 are because of being combining of injection molding, so there is not the gap each other extremely, so the impact that the cap shell bears can be absorbed by inner buffer layer fully, more there is not the danger that suffers secondary pulse power, therefore safe, and the method is once just finished, speed is fast, program is simple, thus the production efficiency height, economy.

By Fig. 4,5 as seen, the safety cap that this method is made in reality is implemented, need only stick a little the shockproof sponge 400 of several piece of internal layer and fixedly frenulum group 500 just can finish.

Claims

1, the closely connected moulding manufacture method of helmet shell and inner buffer layer, it is characterized in that high pressure resistant for by the impact resistance forming materials of housing 10, the whole housing of bump, the buffer body that riddles in the housing is foam filled material buffer body 30, when making, it earlier housing 10 is inserted in the die body master mold B of a homotype, stretch into the recessed portion of master mold in addition with a male model A, form the gap in male model A and the housing, the shooting foaming material is to inner walls and be full of space in male model B and the housing from male model, foam filled material buffer body promptly closely attaches moulding, pulls up public affairs, master mold A, B.

2, by the closely connected moulding manufacture method of described helmet shell of claim 1 and internal layer cushion, it is characterized in that the inner surface of its housing 10 or surface are provided with an application layer.