CN2531655Y

CN2531655Y - Integral composite damper structure for safety helmet

Info

Publication number: CN2531655Y
Application number: CN 01274374
Authority: CN
Inventors: 何昌宪
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-21
Filing date: 2001-12-21
Publication date: 2003-01-22
Anticipated expiration: 2011-12-21

Abstract

The utility model discloses a one body compound buffer structure safe helmet, which relates to a safe helmet greatly decreasing impact risk, to solve the prior technique problems of limited dispersion impact force, inadequate soft buffer pattern, easiest distortion, inadequate whole safety, complex manufacture technology and high processing cost etc. The utility model comprises a shell body, an inner liner structure body and a buffer body between the shell body and the inner liner structure body. The shell body is made of rigid plastic processed to a cap shaped structure; the inner liner structure body foams and is formed with high rate sealing model by the shell body structure. The top surface of the buffer body and the inner surface of the shell body are bounded together and are formed with one body between the sandwich surfaces of the shell body and the liner structure body, which is a low density soft buffer body with great shock-absorbing capacity. The one body formed multilayer buffer structure with different density and hardness-softness not only can effectively disperse and release impact energy of the concentration impact force from the outside with dispersion type among each layer, so to reduce the impulse linear transmission injury produced by inertial impact. Because of adopting one body molding structure of different materials, the processing cost can be reduced greatly and the whole structure can avoid the cap structure unable recon-version when impacted by single impact, so as to enhance the enduring capacity of single dot multi impacts. The utility model is mainly applied to architecture, engineering and transportation fields etc.

Description

The one combined type buffer structure of crash helmet

Technical field

The relevant a kind of crash helmet of the present invention refers to a kind ofly can significantly disperse impulsive force especially, repeatedly impacts institute and is produced the crash helmet of danger to reduce impact energy straight line transmission and single-point.

Background technology

General existing safety cap structure (please join Fig. 1 to Fig. 3), hard plastic layers such as ABS of its mainly wear-resisting by the tool of a tool suitable thickness and resistance to compression or PC form the housing of a skullcap pattern, define accommodation space in this housing and foam sclerosis shock sucking structure body (as EPS to be covered with a high magnification by suitable structural thickness, EPO, EPU ... Deng foaming), make this structure physical efficiency combine closely mutually with housing, make this structure fully be stated from the buffering strut configuration of end user's head as support shell and support, housing then is used for avoiding piercing through of sharp object, both produce complementary anti-collision protection usefulness, in case when the external impacts housing, this momentum is absorbed fully by the combination of housing and foaming structure body, to reach the purpose that the protection wearer's head preserves from; Yet, because this existing safety cap structure, when being subjected to low speed or slighter bump, can directly keep out by hard foamed structure really and dissolve or reduce this external impact forces, can prevent effectively that still wearer's head is accidentally impacted and produces dangerous situation.

But because this foaming structure body is that the enclosed padded coaming of a hard is made, when being subjected to impacting, disperse the limited in one's ability of impact, the buffering kenel is also soft inadequately, can't produce good crumple momentum and eliminate, and only can transmit this impulsive force among a small circle, so to the impulsive force of being born, it disperses ability to bear relatively poor, the impulsive force of fixed point (concentrating) can't be spread the concentrations of this power that will impact fully; So the effect of concentrating of this powerful impact energy is passed to hard foamed structure when directly acting on head to the wearer again from housing, often cause wearer's head to be subjected to the strong collision that foaming body directly transmits, for the percussion more than the moderate, still can't bring into play the efficient buffer function.

So, the housing that should have safety cap now holds retaining because of impact forces can't obtain fully soft dispersion, when suffering to concentrate or during repeatedly impact energy of single-point, to cause its housing and structure after being subjected to powerful the impact, deflection directly surpasses the transient point of subduing of material most probably, originally treated impact conditions and can't after being hit, reply voluntarily, cause housing to resist repeatedly light weight or the repeatedly impact resistance ability reduction of middle amount, and after being clashed between this housing and the hard foamed structure in it, very easily produce the distortion that separates or cave inward, so promptly the ability that external force is collided is resisted once more in forfeiture, Degree of Safety directly is affected, and in addition improved necessity is arranged in fact.

Before this, have the designer that tool one recessed channel is established at the top of said structure body again, button or the lower cap layer of embedding one density in groove are expected with this low density cap layer again, the material layer of one soft and easy crumple is provided between housing and structure, and hope can overcome above-mentioned all problems; Yet clearly, this structure top cover and structure need divide by two groups of moulds and two processing procedures to be finished, and both combinations are not to be a complete body, in assembling, produce human error easily, and in the transmission of active force, reach fully really, will cause quality low than difficulty, can't reach its intended purposes, and the complementarity of each layer also must reduce, and causes the shortcoming that can't reply original state after the collision easily, still has further improved space.

Summary of the invention

The utility model main purpose is promptly providing a kind of one combined type buffer structure of crash helmet; a kind of Low ESR padded coaming of main application with splendid damping capaicty; be compound between housing and the inner lining structure and (be the sandwich kenel) to be set as a buffer body; can effectively the point of concentrating be impacted and diffuse to bigger tolerance range partly abundant mitigation of buffer body; be beneficial to before being passed to wearer's head behind the large impact energy impact housing; can significantly disperse this impact energy bigger load face to the whole cap, with the safety of protection wearer's head.

In existing material behavior, replace homogenous material with the interlayer compound structure in recent years and be that the utilization of combining structure body day by day is in fashion, it is mainly from the compound kenel after the combination, advantage that can compatible each material, complementary length obtains preferable performance or cost benefit; Its kenel is generally by two high density materials up and down, inserts and puts low-density honeycomb type or flexible foamed or foamed damping body therebetween and constitutes; This kind of material is in impact-resistant utilization, and is main kind with above-mentioned low-density intermediate layer material, and it does the time spent (please join Fig. 7) what suffer momentum, stressed and before the collapse at this thickness direction, and activation is effectively frustrated keep down to a certain degree light loading of song with it greatly; Therefore, this material can disperse for good momentum in cataclasm prerequisite, avoids the bad stress injury of deposits yields to be protected.

For reaching above-mentioned purpose, the utility model comprises a housing, an inner lining structure and is created on this buffer body between the two; Its middle shell is the skullcap that a rigid plastics or a fibrous composite constituted, the sclerosis inner lining structure of internal junction unification kind of the high magnification foaming and molding of this skullcap, and another body generates and is folded with at least one buffer body between housing and inner lining structure, this buffer body can be the Highly-absorbing ability of an open foaming or the padded coaming of low resistivity constitutes, can produce in the stressed collision of this buffer body thus before material collapses broken, this is concentrated or more powerful some impact energy spreads fully to periphery, to disperse converting more weak branch to, significantly reduced the concentrated effect of impact energy to single-point to impact energy; So, when energy successively is passed to helmet innermost layer and wearer contact-making surface, impact energy significantly is distributed to bigger tolerance range at the buffer body place, the energy that just is minimized unit are bears rate, and the single-point that can alleviate wearer's head injures, and becomes a preferable buffer structure design naturally.

Moreover, because housing of the present invention, buffer body and inner lining structure, be to adopt the composite molding of different materials foaming one, obtain splendid mutual auxiliary property between each material layer, transmission for energy is more certain, avoid not causing individual layer independent bearing burden, easily impaired shortcoming really because of transmitting.

Compared with prior art, the utility model has following advantage:

1. disperse impulsive force, good, the raising overall security of shock-absorbing capacity;

2. adopt the composite molding of different materials foaming one, simplified manufacturing technique is saved processing cost.

Description of drawings

As for detailed construction of the present utility model, application principle, effect and effect, then please refer to down the explanation that leu figure done can be understood completely:

Fig. 1 is the schematic diagram of the section of existing crash helmet;

Schematic perspective view when Fig. 2 is being hit of helmet structure shown in Figure 1;

Fig. 3 is a part plan schematic diagram shown in Figure 2;

Fig. 4 is the schematic diagram of the utility model section;

The stereoscopic motion schematic diagram that Fig. 5 is hit for the utility model;

Fig. 6 is a part plan schematic diagram shown in Figure 5;

Fig. 7 is the low-density sandwich material in the interlayer composite material, carries out the bent Duo figure of compressive load one strain of impact test.

Element number and title contrast in graphic:

1 housing

2 inner lining structures

3 buffer bodies

31 honey comb structures

311 fall into or breach

4 reticulate bodies

The specific embodiment

Please join Fig. 4 to shown in Figure 6, find out that by graphic it mainly comprises crash helmet of the present utility model: the buffer body 3 that a housing 1, inner lining structure 2 reach between

housing

1 and 2 one composite moldings of inner lining structure; Its middle shell 1 be a rigid plastics (as, PU, ABS, PC ... Deng colloidal materials) constitute a hat structure body, and the inside of housing 1 is combined with inner lining structure 2, and its inside can be overlying on the human body head top for cover, and the outside then meets the inwall configuration of housing approximately; Inner lining structure 2, its sclerosis shock suction body that forms by the high magnification foaming (as, EPS, EPO, EPU, EPP ... or similar expanded material etc.), according to housing 1 inside roughly configuration be set as the higher buffer pad structure 2 of density, it is combined closely in the inside of housing 1, and utilizes its inner wearer's of adaptation head contact; Buffer body 3, by low resistivity materials (EVA, materials such as foaming of low ranges such as EPE or silica gel) be configured as the lower and soft buffering pad of density like Sponge, it is generated by one and is located between housing 1 and the inner lining structure 2, because this buffer body 3 is the extremely low buffering pad of softness and impedance, when affording concentrated some impulsive force, except that having sufficient Low ESR to absorb the high speed impact, more because utmost point soft characteristic, in the flexible crumple stage of nature, the bump of minuent and moderate is effectively disperseed to transmit to periphery, the energy of the unit's of the making scope rate of bearing obviously reduces, and fully dissolves powerful impact energy; So, regard to the bigger impact of inertia, this buffer body is because of can be obviously and a crumple effect significantly is provided, not only relax effectively and absorb this powerful impact external force, this powerful external force of more effective dispersion extremely in a big way, reduce the impact of moment, thereby can be to being produced excellent security by coating; Moreover, because fully loosing of impact power separated, make the material short time set amount that this impact caused, surpassing its possibility of subduing transient point reduces, therefore, after being impacted, each constituent material can be replied former beginning and end deformation state and position mostly more naturally, promptly reply the original characteristic for the treatment of impact conditions after making crash helmet have impact, for single-point repeatedly (or continuously) impact and possess excellent anticollision ability again.

Again, it can be provided with a plurality of running through or nonpenerative honey comb structure 31 towards a side of inner lining structure 2 at least buffer body of the

present utility model

3, and 2 pairs of inner lining structures should honey comb structure 31 depression or breach 3 11 places be that foaming generates and cone (or column) arranged with local or tamp the mode of this part fully, reach one composite molding effectively, make the conjugation of 3 of inner lining structure 2 and buffer bodies strengthen, not only reduce the possibility that is separated when being hit, more make between this honey comb structure 31 and cone, constitute splendid and comprehensive energy and transmit absorbent portion, honey comb structure 31 has more the function that increases the energy transmission area, have more appropriateness and replenish too soft characteristic of buffer body 3 wood property, and have the more obvious effect of dissolving impact energy.

In addition, the utility model can be between the faying face of inner lining structure 2 and buffer body 3 or individual layers material inside, one adds and is combined with a reticulate body 4, make inner lining structure 2 when foaming and molding, this reticulate body 4 can be by inner lining structure 2 or buffer body 3 in conjunction with fastening and difficult disengaging, so, except that the covering property and structural reinforcement of the helmet integral body that tightens security, design by this reticulate body 4, more can make the good bridging effect of each passage part tool of crash helmet, can prevent that foreign matter is (such as stone, mosquito etc.) enter within the helmet via pore, cause wearer's injury.

In sum, the one combined type buffer structure of this kind crash helmet, having really fully looses separates the effect of reduction impact energy cushioning; Effect provides splendid alleviating function and good pliability for inertia impact, and repeatedly (or continuously) required good recovery characteristic of impact of corresponding single-point is provided, and can produce excellent protective action to the wearer really.

Claims

1. the one combined type buffer structure of a crash helmet, it comprises a housing (1), inner lining structure (2) and the buffer body (3) between housing (1) and inner lining structure (2); It is characterized in that: its middle shell (1) is a hard hat structure body, and the inside of housing (1) is combined with inner lining structure (2), and the buffer body that softness and resistance are low (3) is generated by one and is located between housing (1) and the inner lining structure (2).

2. the one combined type buffer structure of crash helmet as claimed in claim 1, it is characterized in that: wherein buffer body (3) is provided with honey comb structure (31) towards the direction of inner lining structure (2).

3. the one combined type buffer structure of crash helmet as claimed in claim 2 is characterized in that: wherein honey comb structure (31) is nonpenerative depression (311) pattern.

4. the one combined type buffer structure of crash helmet as claimed in claim 2 is characterized in that: breach (311) pattern of honey comb structure (31) for running through wherein.

5. as the one combined type buffer structure of claim 2 or 3 or 4 described crash helmets, it is characterized in that:

Wherein depression that should honey comb structure (31) or breach (311) are located is that the foaming product tamps in it to inner lining structure (2).

6. as the one combined type buffer structure of claim 1 or 2 or 3 or 4 described crash helmets, it is characterized in that: between the faying face of inner lining structure (2) and buffer body (3) or individual layers material inside wherein, one is equipped with a reticulate body (4).

7. the one combined type buffer structure of crash helmet as claimed in claim 5 is characterized in that: between the faying face of inner lining structure (2) and buffer body (3) or individual layers material inside wherein, one is equipped with a reticulate body (4).