CN1596788A - Safety helmet,safety hemelt interal shell and method for making the shell - Google Patents
Safety helmet,safety hemelt interal shell and method for making the shell Download PDFInfo
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- CN1596788A CN1596788A CN 200410079727 CN200410079727A CN1596788A CN 1596788 A CN1596788 A CN 1596788A CN 200410079727 CN200410079727 CN 200410079727 CN 200410079727 A CN200410079727 A CN 200410079727A CN 1596788 A CN1596788 A CN 1596788A
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Abstract
The invention provides a safety helmet for protecting the head, which comprises a casing, an endoconch arranged in the casing for receiving the head, a head support with ring shape and a plurality of support bands. The support band is arranged in the endoconch for surrounding the head and jaw. The endoconch comprises a hard layer and an elastic layer which are formed as single body. The endoconch, the head support and the jaw are simultaneously fixed at the casing through a fixed unit, thus increasing the processability and productivity in the installing process of helmet. Besides, in the invention, the hard layer with cylinder shape is produced through injection shaping process. Under the circumstance, after the hard layer is formed through injection shaping process, the elastic layer is formed being foamed in the foaming mould surrounding the hard layer. Relatively, the production time of the helmet is reduced and the productivity of the helmet is remarkably improved.
Description
Technical field
The present invention relates to a kind of safety cap, relate in particular to the method that a kind of parts that wherein constitute safety cap are easy to the safety cap making and assemble and used for safety helmet hypostracum and make hypostracum.
Background technology
Usually, often locate dangerously in work floor, construction site, fire-fighting ground etc., the workman must be with safety cap for reasons of safety.Safety cap is protected workman's head to be clashed into and is prevented accident.
In addition, on being worn on workman's head in, safety cap must be able to not be interfered workman's work.Therefore, safety cap for the reasons mentioned above and must be enough gently.In addition, safety cap must have enough intensity and stably protects head not to be subjected to outside impact.
As shown in fig. 1, each comprises having the shell 100 of hemispherical with covering wearer's head traditional safety cap, and is installed in the inner casing 120 in the shell 100.Traditional safety cap also comprises a plurality of support belts 160, and it is installed in the inner casing 120, head support 140, and it has annular shape and is installed in the inner casing 120, and jaw band 180, is used for keeping on wearer's head shell 100.
In traditional safety cap, head support 140 forms the annular shape structure around head simultaneously around wearer's head.Head support 140 has diagonal band 140a, and down and backward extend in its rear portion from head support 140, as shown in Figure 1.Diagonal band 140a supports the rear portion of wearer's head.Support retainer 150 and be arranged on the diagonal band 140a, to adjust the internal diameter of head support 140.
Each end of jaw band 180 is connected to the corresponding end of fixed support 110, and described fixed support 110 is arranged on the both sides of shell 100.
Tradition inner casing 120 comprises hard formation 120a and elastic layer 120b, forms the inner surface and the outer surface of inner casing 120 respectively.Hard formation 120a uses harder elastomeric material by the vacuum forming technique manufacturing.Elastic layer 120b is by the foam resin manufacturing, such as foamed polystyrene, polyethylene (PE) foam or polyurethane foam.As a result, hard formation 120 has higher rigidity, and elastic layer 120b has elasticity simultaneously.Like this, elastic layer 120b absorbs the impact that is delivered to hard formation 120a.Hard formation 120a and elastic layer 120b have hemispherical shape.Certainly, inner casing 120 also has hemispherical.
The method of making inner casing 120 will describe in detail below.After the plastic resin with plate-like shape was placed and is fixed in the metal die that is used to form the hemispherical product, plastic resin was heated and is softening.After this, the space between metal die and the plastic resin is by evacuation.Then, softening plastic resin has formed semi-spherical shape like this because vacuum pressure more closely adheres to the inner surface of metal die.That is, the air between metal die release metal die and the softening plastic resin has produced the hard formation 120a of semi-spherical shape like this to the outside.
After this, the new hard formation 120a that forms is cooled.The hard formation 120a of cooling is placed in the foaming mould to form the hemispherical foamed products.After this, foam resin is injected in the foaming mould.Then, foaming elastic layer 120b is integrated into the outer surface of hard formation 120a.
But in traditional safety cap, fixed support 110 is connected to the opposite flank of shell 100 by lock(ing) bolt 112.Therefore, a plurality of locked with bolts hole must be formed on the shell 100, is used for fixed support 110 is connected to shell 100, as shown in Figure 1.
The above-mentioned locked with bolts hole 100a that is formed into shell 100 has reduced the rigidity of safety cap.As a result, in traditional safety cap, because the locked with bolts hole 100a in the shell 100, the voltage that can not carry out safety cap bears test.Like this, the stability of safety cap worsens.
In addition, fixed support 110, inner casing 120 and head support 140 arrive shell 100 by lock(ing) bolt 112 and rivet 190a separate connection.Correspondingly, the process of assembling conventional security cap is to user's inconvenience.In addition, each assembling process need use independent module units, such as lock(ing) bolt 112 or rivet 190a, has increased the manufacturing cost of safety cap like this.
In addition, the support retainer 150 that is arranged on the rear portion of head support 140 tilts with diagonal band 140a.Therefore, move on to when safety cap on wearer's the head, support the rear portion of the limit part squeeze bulb of retainer 150.Like this, traditional safety cap is relatively more painful to the wearer.
In addition, the vacuum forming process of making inner casing 120 is problematic, and is softening then because it needs considerable time to heat, and cools off plastic resin at last.Correspondingly, the manufacturing time of inner casing 120 is longer relatively, and productivity ratio reduces, and operating efficiency also reduces.
In addition because inner casing 120 has the head that semi-spherical shape covers the wearer, from the shock wave of outside by the whole inner casing 120 that is transferred to.Also have, the wearer may owing to the head of wearer when wearer's safe wearing cap and the space ventilator between the conventional security cap is relatively poor feels uncomfortable.
In addition, the semi-spherical shape of inner casing 120 makes that the weight saving of conventional security cap is relatively more difficult.
Summary of the invention
Correspondingly, the present invention is used to solve the problems of the prior art, the purpose of this invention is to provide a kind of safety cap, it does not need locked with bolts hole and fixed support that the jaw band is connected to shell on shell, be fixed on simultaneously comprising the internal part of inner casing, head support and jaw band on the preposition of inner surface of shell, the support retainer that wherein constitutes head support parallels with the rear portion of wearer's head.
Other purpose of the present invention provides a kind of safety cap, and it has transceiver, and described transceiver is connected to communication device, such as broadcasting.
Other purpose of the present invention provides a kind of safety cap, and it is by the Shooting Technique manufacturing, and has inner casing therein, and the weight of inner casing is light and open wide at an upper portion thereof, and a kind of method of making inner casing.
To achieve these goals, the invention provides the safety cap of a kind of wearer's who is used to protect the safe wearing cap head, comprising: shell; Be installed in the shell inner casing with the head that receives the wearer; Head support, it has annular shape and is arranged on the inner surface of inner casing; Be placed on the support belt in the inner casing, with head around the wearer; Jaw band, described jaw band are connected to shell with below wearer's lower jaw; And fixed cell, being used for inner casing, head support and jaw band are fixed on the preposition of inner surface of shell together.
Inner casing can have hemisphere or cylindrical shape.Inner casing comprises the hard formation with higher rigidity; And elastic layer, described elastic layer is around the outer surface of hard formation.Hard formation and elastic layer can have semi-spherical shape.Alternatively, hard formation and elastic layer can have cylindrical shape.As further optional, hard formation and elastic layer can have cylindrical shape and semi-spherical shape respectively.Inner casing can be used in the safety cap that does not comprise fixed cell.
Hard formation with cylindrical shape can use plastic resin to form by injection molding technique.Elastic layer can foaming form cylindrical or hemispherical on the outer surface of the hard formation by resin being had cylindrical shape on the hard formation.That is, have after columniform hard formation forms by Shooting Technique, elastic layer can form cylindrical or hemispherical by Foamex on the outer surface of hard formation.
Safety cap can also comprise transceiver, and it is fixed on the shell to be connected to communication device by fixed cell.Safety cap can also comprise the loudspeaker bag that is arranged on the jaw band, and to receive loudspeaker therein, described loudspeaker is connected to transceiver.
Head support can comprise: the vertical extension that down extends of the rear portion of Zhi Chenging from the head; The horizontal extension that backward extends from the lower end of vertical extension; And the support retainer, described support retainer is arranged on the horizontal extension.
Fixed cell can comprise: the locked with bolts projection on the opposite side of a plurality of inner surfaces that are arranged on shell; And after part, be fixed to a plurality of lock(ing) bolts in a plurality of locked with bolts projectioies by inner casing, head support and jaw band.
Fixed cell can also comprise axle sleeve, and described axle sleeve is braked to inner casing at first end, and is connected to each locked with bolts projection at second end, allows each lock(ing) bolt to pass through lining like this.
Description of drawings
Above and other objects of the present invention, feature and advantage will be in description taken in conjunction with the accompanying drawings and are recognized, wherein:
Fig. 1 is the sectional view of conventional security cap;
Fig. 2 is the bottom decomposition diagram according to the safety cap of the first embodiment of the present invention;
Fig. 3 is the bottom perspective view of safety cap of the assembling of Fig. 2;
Fig. 4 is the amplification decomposition diagram of the circular portion ' A ' of Fig. 3;
Fig. 5 is the amplification decomposition diagram of the circular portion ' B ' of Fig. 3;
Fig. 6 is the part zoomed-in view at rear portion of head support of the safety cap of Fig. 2;
Fig. 7 is the decomposition diagram of safety cap according to a second embodiment of the present invention, and it has shown the structure of used for safety helmet inner casing;
Fig. 8 is the cutaway view of structure of the inner casing of Fig. 7;
Fig. 9 is the cutaway view of the shell of the inner casing that the shown Fig. 7 safety cap that is connected to Fig. 7;
Figure 10 has shown the manufacture process of the inner casing of Fig. 7;
Figure 11 has shown the flow chart of manufacture method of the inner casing of Fig. 7; And
Figure 12 is the cutaway view of inner casing of the safety cap of a third embodiment in accordance with the invention.
The specific embodiment
Below, with reference to the accompanying drawings embodiments of the invention are elaborated.
Now with reference to accompanying drawing, wherein identical Digital ID is used to different accompanying drawings and indicates identical or similar parts.
Fig. 2 is the decomposition diagram according to the safety cap of the first embodiment of the present invention.Fig. 3 is the bottom perspective view of safety cap 1 of the assembling of Fig. 2.
Fig. 4 is the amplification decomposition diagram of the circular portion ' A ' among Fig. 3.Fig. 5 is the amplification decomposition diagram of the circular portion ' B ' of Fig. 3.Fig. 6 is the part zoomed-in view at rear portion of head support 14 that has shown the safety cap 1 of Fig. 2.
Shown in Fig. 2-6, comprise shell 10 with semi-spherical shape according to the safety cap 1 of the first embodiment of the present invention; And inner casing 12, described inner casing 12 is installed in the shell 10.Safety cap 1 also comprises head support 14, and described head support 14 is installed in the inner casing 12; A plurality of support belts 16, it is connected to inwall 12.Safety cap 1 also comprises jaw band 18, and described jaw band 18 is connected to shell; And fixed cell, be used for inner casing 12, head support 14 and jaw band 18 are fixed to together the precalculated position of shell 10.
The method of making above-mentioned inner casing 12 as detailed below.At first, hard formation H-1 uses plastic material to form hemispherical by vacuum forming technique.After the new hard formation H-1 that forms was placed in the foaming mould, foam resin was injected into foaming mould to form elastic layer E-1 according to foam process.Then, hemispheric elastic layer E-1 is around hard formation H-1 foaming.At this moment, foam resin preferably includes foamed polystyrene, PE (polyethylene) foam and polyurethane foam.Like this, inner casing 12 comprises hard formation H-1 and elastic layer E-1, and its integral body forms single main body.
Simultaneously, the end of each support belt 16 is fixed to inner casing 12, like this support belt 16 being provided with in interior week around inner casing 12.At this moment, each support belt 16 is by rivet, hook or anchor clamps, be fixed to inner casing 12 such as the clip (not shown).Rivet can for good and all be fixed to inner casing 12 with support belt 16.Hook or folder can be fixed to inner casing 12 with support belt 16 removedly.Alternatively, support belt 16 can be fixed to inner casing 12 by fixed cell, and described fixed cell will describe in detail below.The process that support belt 16 is fixed to inner casing 12 is easy to be understood by those of ordinary skill, therefore further specifies to be considered to unnecessary.
With reference to accompanying drawing, support belt 16 is placed in the inner casing 12 in the radial direction, forms concave shape like this in inner casing 12.Therefore, support belt 16 is around wearer's head, and wearer's head is inserted in the inner casing 12.
Preferably, safety 17 is arranged under the support belt 16.Safety net 17 prevents that support belt 16 from directly contacting with wearer's head.
Above-mentioned head support 14 is placed on the lower end of support belt 16, as shown in FIG..That is, head support 14 is installed to the bottom of inner casing 12.
Simultaneously, a plurality of locked with bolts projection 10a are wholely set the both sides at the inner surface of shell 10.Locked with bolts projection 10a inwardly protruding, separated from one another in predetermined distance simultaneously.As shown in Figure 4, a plurality of lock hole 12a, 14a and 18b are arranged on the precalculated position of the locked with bolts projection on the opposite flank of corresponding inner casing 12, head support 14 and jaw band 18 respectively.
On inner casing 12, head support 14 and jaw band 18 were placed on home position in the shell 10, a plurality of lock hole 12a, 14a and 18b were in alignment with each other.Lock(ing) bolt 11 is tightened among the protruding 10a of each locked with bolts after lock hole 12a, 14a by alignment and 18b.
Like this, inner casing 12, head support 14 and jaw band 18 are fixed to the inner surface of shell 10 simultaneously by locked with bolts projection 10a and lock(ing) bolt 11.Above-mentioned locked with bolts projection 10a and lock(ing) bolt 11 constitute the fixed cell of safety cap 1 of the present invention.
As shown in Figure 5, the transceiver 13 with aerial lug 13b is arranged on the precalculated position between shell 10 and the inner casing 12.Connector 13b guides to the outside by line guiding groove 12b, and described line guiding groove 12b is set on the precalculated position on the inner casing 12.Like this, connector 13b is easy to be connected to independent communication device, such as the broadcasting (not shown).
Transceiver 13 at one end has through hole 13a, as shown in Figure 5.Lock(ing) bolt 11 passed the through hole 13a of transceiver 13 before tightening to locked with bolts projection 10a.Therefore, transceiver 13 is fixed to the inner surface of shell 10 simultaneously simultaneously with the internal part that comprises inner casing 12, head support 14 and jaw band 18.
As mentioned above, comprise the fixed cell of locked with bolts projection 10a and lock(ing) bolt 11, except other parts, also inner casing 12, head support 14 and jaw band 18 are fixed to shell 10.Certainly, fixed cell also can be fixed to shell 10 with extra parts (undeclared) herein.Specifically, each parts that is connected to shell 10 are fixed on the shell 10 by fixed cell.
As shown in Figure 5, can open on one of the relative part that loudspeaker bag 19 is arranged on the jaw band 18 that will settle around the wearer's of safe wearing cap 1 ear.The loudspeaker (not shown) that is connected to transceiver 13 is installed in can be opened in the loudspeaker bag 19.
As shown in Figure 6, head support 14 comprises the horizontal extension 14d that supports extension 14c that 14 rear portion integral body down extends from the head and extend from the lower end integral body of vertical extension 14c backward.Vertical extension 14c and horizontal extension 14d have belt shape.Head support 14 also comprises support retainer 14b, and described support retainer 14b is arranged on horizontal extension 14d and goes up to adjust the internal diameter of head support 14.
During safety cap 1, the inner surface that supports retainer 14b is parallel with the back of wearer's head on the wearer wears.Therefore, even safety cap moves on the head unfriendly in the process of work, supporting the back that retainer 14b did not push or stimulated head, is comfortable and stable for the wearer.
Operation and combination with safety cap of the present invention 1 of said structure will illustrate below.
At first, the assembling process of safety cap 1 is as follows.As shown in Figure 2, inner casing 12, support belt 16, head support 14 and jaw band 18 are installed in proper order and are had in the hemispheric shell 10.Above-mentioned internal part 12,14 and 18 is fixed to locked with bolts projection 10a together by lock(ing) bolt 11, it is set on the apparent surface of inner surface of shell 10, and described bolt 11 is tightened after the lock hole 12a, the 14a that pass internal part 12,14 and 18 and 18b among the locked with bolts projection 10a.
At this moment, transceiver 13 is set between shell 10 and the inner casing 12.When lock(ing) bolt 11 during continuously by the through hole 13a on the end that is arranged on transceiver 13, transceiver 13 is fixed to locked with bolts projection 10a with internal part 12,14 and 18.The connector 13b that is connected to transceiver 13 is guided to the outside by the line guiding groove 12b on the preposition that is arranged on inner casing 12 at an easy rate.
Like this, internal part 12,14 and 18 is fixed to shell 10 simultaneously by the single fixation procedure of using lock(ing) bolt 11 and being arranged on the locked with bolts projection 10a on the inner surface of shell 10.Therefore, the process of assembling safety cap 1 is greatly simplified, and has increased the operating efficiency and the productivity ratio of safety cap 1 like this.
In addition, internal part 12,14 and 18 is maintained in the state that is fixedly attached to shell 10 by lock(ing) bolt 11.Provide stability to the wearer when therefore, safety cap 1 is on being worn on wearer's head.In addition, safety cap 1 of the present invention protects wearer's head to avoid external impact effectively.
In addition, the transceiver 13 that is arranged between the inner surface of inner casing 12 and shell 10 is connected to independent communication device simply by connector 13b, and such as broadcasting, described connector 13b guides to the outside by line guiding groove 12b from transceiver 13.Certainly, transceiver 13 is fixed to shell 10 with internal part 12,14 and 18 simultaneously by the fixed cell that comprises lock(ing) bolt 11 and locked with bolts projection 10a.
As mentioned above, the 1 couple of wearer of safety cap of the present invention is convenient and have a reliability of enhancing.
Fig. 7 is the decomposition diagram of safety cap 1 according to a second embodiment of the present invention, and it shows the structure of the inner casing 12 that shows safety cap 1.Fig. 8 has shown the sectional view of structure of the inner casing 12 of Fig. 7.Fig. 9 is the cutaway view of the shell 10 of the inner casing 12 that the shown Fig. 7 safety cap 1 that is connected to Fig. 7.
Figure 10 has shown the manufacture process of the inner casing 12 of Fig. 7.Figure 11 has shown the flow chart of manufacturing of the inner casing 12 of Fig. 7.Figure 12 is the cutaway view of inner casing 12 of the safety cap 1 of a third embodiment in accordance with the invention.
As shown in Figure 7, the inner casing 12 of safety cap 1 according to a second embodiment of the present invention comprises hard formation H-2, and described hard formation H-2 has cylindrical shape, and it is opened on top; And elastic layer E-2, described elastic layer E-2 has cylindrical shape and centers on the outer surface of hard formation H-2.
In other words, the hard formation H-2 of second embodiment has and remainder similar shapes according to the hard formation H-1 of Fig. 2 of first embodiment, and this is that top by the hard formation H-1 of cutting drawing 2 obtains.The hard formation H-2 of second embodiment is by the injection molding process manufacturing.That is, because hard formation H-2 has cylindrical shape, hard formation H-2 can be by the injection molding technique manufacturing.
On the other hand, the hard formation H-1 that has Fig. 2 of semi-spherical shape by the injection molding process manufacturing is unusual difficulty.If hemispheric hard formation H-1 forms by injection molding process, the manufacturing time of hard formation H-1 is too long, and in addition, the surface roughness of hard formation H-1 significantly reduces.Like this, Fig. 2 has hemispheric hard formation H-1 must be by the injection molding process manufacturing, but preferably by the vacuum forming technique manufacturing.But the hard formation H-2 that has cylindrical shape among Fig. 7 can be by the injection molding process manufacturing.
Shown in Fig. 7 and 8, a plurality of lock hole 12a are set at the position of predetermined front side, opposite side and rear side on the inner surface of inner casing 12 of second embodiment, pass lock hole 12a to allow lock(ing) bolt 11.Lock hole 12a forms when inner casing 12 is made by injection molding process simultaneously.
As shown in Figure 9, each lock(ing) bolt 11 is tightened among the locked with bolts projection 10a by formed lock hole 12a on the front and rear that is formed on inner casing 12, and described locked with bolts projection 10a is from the inner surface inwardly protruding of shell 10.At this moment, lining 12c is installed among each lock hole 12a, cooperates with locked with bolts projection 10a simultaneously, so that each lock(ing) bolt 11 tightens among the locked with bolts projection 10a at an easy rate.
Lining 12c with conical in shape is installed to inner casing 12 at first end, and is connected to each locked with bolts projection 10a at second end, as shown in Figure 9.Each lock(ing) bolt 11 passed through lining 12c before being tightened locked with bolts projection 10a.That is, lining 12c is used for lock(ing) bolt 11 is directed to locked with bolts projection 10a.In addition, lining 12c prevents that lock(ing) bolt 11 from directly contacting with inner casing 12.
Simultaneously, by such as the elastic layer E-2 of the foam resin manufacturing of foamed polystyrene, PE foam or polyurethane foam outer surface setting around hard formation H-2 with cylindrical shape.At this moment, elastic layer E-2 is wholely set by the outer surface of foaming mould around hard formation H-2.Therefore, elastic layer E-2 has cylindrical shape, as hard formation H-2.
Alternatively, elastic layer E-2 can be connected to the outer surface of hard formation H-2 by bond medium after independently independently forming by independent foam process.But preferably, elastic layer E-2 uses above-mentioned foaming mould integrally formed around the outer surface of hard formation H-2.
That is, preferably, after hard formation H-2 used plastic resin formation by injection metal mold, elastic layer E-2 used foaming mould integrally formed around the outer surface of hard formation H-2.The method of making inner casing 12 describes in detail with reference to the accompanying drawings below.
With reference to Figure 10, have columniform hard formation H-2 and prepare by injection molding process.After this, the hard formation H-2 of preparation is placed in the foaming mould that is equipped with upper and lower moulding section 22 and 24.
After the upper and lower mould part 22 of equipment and 24 foaming mould are heat sealed, circumferentially foam such as the foam resin of foamed polystyrene, PE foam or polyurethane foam outer surface around hard formation H-2, form the elastic layer E-2 of cylindrical shape like this.As a result, the inner casing 12 with cylindrical shape is formed, and wherein elastic layer E-2 is integrally formed around the periphery of hard formation H-2.
At last, the inner casing 12 of cylindrical shape is being handled by dressing process from the foaming mould after separating, finishes the step of the inner casing of making second embodiment like this.In the flow chart that conveniently is presented at Figure 11 of the method for above-mentioned manufacturing inner casing 12 for explanation.The flow chart of Figure 11 will readily understand under the situation in conjunction with above-mentioned explanation and Figure 10, therefore, further explain to be considered to unnecessary.
As shown in Figure 12, have hemispheric elastic layer E-3 and can be wholely set on columniform hard formation H-2, with the inner casing 12 that a third embodiment in accordance with the invention is provided.That is, hard formation H-2 has cylindrical shape, and elastic layer E-3 has hemispherical simultaneously.Elastic layer E-3 has hemispherical.The closed hard formation H-2 of elastic layer E-3 opens top, forms individual dome-like structures simultaneously on hard formation H-2, as shown in figure 12.Certainly, elastic layer E-3 is by forming the specific foaming mould manufacturing of hemispherical product.
In order to use the inner casing 12 assembling safety caps 1 according to the second and the 3rd embodiment shown in Fig. 7 of the present invention-12, the inner casing 12 with said structure is settled in shell 10 with head support 14 and jaw band 18 parts.After this, above-mentioned internal part 12,14 and 18 is fixed to shell 10 simultaneously by lock(ing) bolt 11, and wherein after lock hole 12a, 14a and 18b by internal part 12,14 and 18, described lock(ing) bolt 11 is tightened among the locked with bolts projection 10a.
At this moment, lining 12c is installed among each lock hole 12a, and each lock(ing) bolt is easy to the lock hole 12a by inner casing 12 like this.Therefore, the process of assembling safety cap 1 is greatly simplified.
Equally, in a second embodiment, the inner casing 12 that is assembled into the inner surface of shell 10 has cylindrical shape, and opens on top.Therefore, during safety cap 1, the space between safety cap 1 and wearer's the head has better air permeability on the wearer wears, and is easy to the sweat of getting rid of by the wearer produced from safety cap 1 thus.
As for this respect, safety cap 1 is tested the impact absorption ability according to the safety monitoring of standard, and the result is presented in the table 1, comprises the impact energy of the inner casing 12 that passes through the hard formation H-2 with cylindrical shape.
Table 1
| Test event | Unit | Standard | The result | Method of testing | |||
| The present invention | Tradition | ||||||
| The impact absorption ability | High temperature | ????C | ??N | 4.450 it is or littler | 1779 | ??1948 | Do not have |
| ????R | 2060 | ??3225 | |||||
| ????L | 1948 | ??2282 | |||||
| ????F | 2224 | ??2727 | |||||
| ????B | 2060 | ??2669 | |||||
| Low temperature | ????C | 3500 | ??2891 | ||||
| ????R | 2727 | ??3616 | |||||
| ????L | 2669 | ??3283 | |||||
| ????F | 2891 | ??2780 | |||||
| ????B | 2891 | ??3003 | |||||
| Resistance | High temperature | ??mm | ?? 3ABE ?? 3AB | 9.5 or still less | 9.5 or still less | ||
| Low temperature | 9.5 or still less | 9.5 or still less | |||||
1Resistance; To resistance through the impact energy of safety cap
2ABE; ABE-type: 9.5 or still less
3AB; AB-type: 11.1 or still less
From table 1, the inner casing 12 that as seen has the hard formation H-2 of cylindrical shape has the attribute similar to traditional inner casing, and compares with traditional inner casing, also has sufficient rigidity and reaches standard.Therefore, be provided with safety cap 1 and absorb and spread external impact effectively, so stably protect wearer's head to be subjected to external impact with columniform inner casing 12.
In addition, in the safety cap 1 that is provided with the inner casing 12 with cylindrical shape, the weight and the cost of safety cap 1 significantly reduce, and machinability and productivity ratio are owing to the simplification manufacture method of safety cap 1 improves.
In addition, in the inner casing of the present invention 12 of the hard formation H-2 with cylindrical shape, hard formation H-2 can make by injection molding process simply.Therefore, the manufacturing time with safety cap 1 of inner casing 12 reduces significantly.In addition, safety cap 1 is easy to a large amount of productions.
As mentioned above, the invention provides wherein that internal part comprises that inner casing, head support and jaw band are fixed to the safety cap of shell simultaneously by a plurality of lock(ing) bolts, increased machinability and productivity ratio in the assembling process of safety cap like this.In addition, safety cap of the present invention does not need the locked with bolts hole on shell, like this shell is provided the rigidity of improvement.
In addition, in safety cap of the present invention, the support retainer that is arranged on the horizontal extension of head support is parallel to the rear portion of wearer's head in the surface within it.Therefore, the support retainer does not push or makes that the rear portion of head is uncomfortable.Like this, safety cap of the present invention is comfortable and stable for the wearer.
In addition, safety cap of the present invention has transceiver, and described transceiver is fixed to shell by the fixed cell that will be connected to independent communication device, and is very convenient to the wearer like this.
In addition, in the present invention, the hard formation that constitutes inner casing can be by the injection molding process manufacturing.In this case, after hard formation was finished by injection molding process, elastic layer was integrally formed around hard formation by foaming in foaming mould.Correspondingly, the manufacturing time of safety cap is reduced, and the productivity ratio of safety cap improves significantly.
In addition, in the safety cap that is provided with the inner casing with cylindrical shape, the external impact that is applied to shell is prevented from being delivered to inner casing.Therefore, safety cap of the present invention can stably be protected wearer's head.
Although some embodiments of the present invention are showed and are illustrated, it will be understood to those of skill in the art that under the situation that does not depart from principle of the present invention and essence, can change these embodiments, its scope also falls in claim of the present invention and the equivalent institute restricted portion thereof.
Claims (14)
1. the safety cap of a wearer who is used to protect the safe wearing cap head comprises:
Shell;
Be installed to the inner casing in the shell, to receive wearer's head;
Head support, it has annular shape and is arranged on the inner surface of inner casing;
Be placed on the support belt in the inner casing, with head around the wearer;
Jaw band, described jaw band are connected to shell with below wearer's lower jaw; And
Fixed cell is used for inner casing, head support and jaw band are fixed to together the preposition of the inner surface of shell.
2. safety cap according to claim 1 is characterized in that described inner casing comprises:
Hard formation with high stiffness, described hard formation has hemispherical shape; And
Elastic layer, described elastic layer have hemispherical and center on the outer surface of hard formation.
3. safety cap according to claim 1 it is characterized in that described inner casing has cylindrical shape and ventilates to allow its top, and described inner casing comprises:
Hard formation, described hard formation has higher rigidity and cylindrical shape, and it is in opened upper end; And
Elastic layer, described elastic layer have cylindrical and around the outer surface of hard formation.
4. safety cap according to claim 1 is characterized in that described inner casing comprises:
Hard formation, described hard formation has higher rigidity and cylindrical shape, and it is in opened upper end; And
Elastic layer, described elastic layer have hemispherical and are arranged on form domed formation on the outer surface of hard formation simultaneously on hard formation.
5. safety cap according to claim 1 is characterized in that described inner casing comprises:
Transceiver, described transceiver is fixed on the shell by fixed cell and is connected to communication device.
6. safety cap according to claim 5 is characterized in that also comprising:
Be arranged on loudspeaker bag on the jaw band to hold loudspeaker therein, described loudspeaker is connected to transceiver.
7. safety cap according to claim 1 is characterized in that described head support comprises:
The vertical extension that down extends of the rear portion of Zhi Chenging from the head;
The horizontal extension that backward extends from the lower end of vertical extension; And
Support retainer, described support retainer is arranged on the horizontal extension.
8. safety cap according to claim 1 is characterized in that described fixed cell comprises:
Locked with bolts projection on the opposite side of a plurality of inner surfaces that are arranged on shell; And
After the part of passing inner casing, head support and jaw band, be tightened a plurality of lock(ing) bolts in a plurality of locked with bolts projectioies.
9. safety cap according to claim 8 is characterized in that described fixed cell also comprises:
Axle sleeve, described axle sleeve is braked to inner casing at its first end, and is connected to each locked with bolts projection at its second end, allows each lock(ing) bolt to pass lining like this.
10. the inner casing that will be installed in the safety cap, described inner casing has cylindrical shape, and it allows the top of inner casing to ventilate in opened upper end like this.
11. inner casing according to claim 10 is characterized in that described inner casing comprises:
Hard formation, described hard formation has higher rigidity and cylindrical shape, and it is in opened upper end; And
Elastic layer, described elastic layer have cylindrical shape and center on the outer surface of hard formation.
12. a method of making the used for safety helmet inner casing comprises:
First forms step, uses the hard formation in the plastic resin injection moulding claim 11; And
Second forms step, by hard formation is placed in back wall in the foaming mould around the outer surface of hard formation circumferentially Foamex form the described elastic layer of claim 11, form the described inner casing of claim 10 thus.
13. the inner casing that will be arranged in the safety cap comprises:
Hard formation, described hard formation has higher rigidity and cylindrical shape, and it is in opened upper end; And
Elastic layer, described elastic layer have semi-spherical shape and are arranged on the outer surface of hard formation, form domed formation simultaneously on hard formation.
14. a method of making the used for safety helmet inner casing comprises step:
First forms step, uses the described hard formation of plastic resin injection moulding claim 13; And
Second forms step, forms the described elastic layer of claim 13 by first spherical ground Foamex of outer surface at hard formation after hard formation being placed in the foaming mould, forms the described inner casing of claim 13 thus.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20030065004A KR100501944B1 (en) | 2003-09-19 | 2003-09-19 | Safety cap that assembly is easy |
| KR1020030065004 | 2003-09-19 | ||
| KR10-2004-0002573A KR100537220B1 (en) | 2004-01-14 | 2004-01-14 | Inner cell of safety cap and the manufacture method |
| KR1020040002573 | 2004-01-14 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101316892A Division CN100496319C (en) | 2003-09-19 | 2004-09-17 | Safety helmet, safety hemelt internal shell and method for making the shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1596788A true CN1596788A (en) | 2005-03-23 |
| CN1261058C CN1261058C (en) | 2006-06-28 |
Family
ID=34680718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410079727 Expired - Fee Related CN1261058C (en) | 2003-09-19 | 2004-09-17 | Safety helmet,safety hemelt interal shell and method for making the shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1261058C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014019537A1 (en) * | 2012-08-02 | 2014-02-06 | Strategic Sports Limited | Helmet with in-moulded memory foam member and process therefor |
| CN107404961A (en) * | 2015-02-05 | 2017-11-28 | 劳伯特·S·萨德达比 | The helmet with multiple protection zones |
| CN107549916A (en) * | 2017-08-18 | 2018-01-09 | 李锐 | A kind of battery truck helmet |
| CN109421196A (en) * | 2017-08-25 | 2019-03-05 | Abus·奥古斯特·布莱梅克·索恩有限股份两合公司 | Protective helmet manufacturing method and protective helmet manufactured according to the method |
| CN109640726A (en) * | 2016-06-07 | 2019-04-16 | 贝尔运动股份有限公司 | The helmet body and its method of mechanical engagement |
| CN111958985A (en) * | 2020-08-14 | 2020-11-20 | 安徽润宏塑料制品有限公司 | Helmet top belt positioning and gripping device |
-
2004
- 2004-09-17 CN CN 200410079727 patent/CN1261058C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014019537A1 (en) * | 2012-08-02 | 2014-02-06 | Strategic Sports Limited | Helmet with in-moulded memory foam member and process therefor |
| CN107404961A (en) * | 2015-02-05 | 2017-11-28 | 劳伯特·S·萨德达比 | The helmet with multiple protection zones |
| CN109640726A (en) * | 2016-06-07 | 2019-04-16 | 贝尔运动股份有限公司 | The helmet body and its method of mechanical engagement |
| CN109640726B (en) * | 2016-06-07 | 2022-01-11 | 贝尔运动股份有限公司 | Mechanically engaged helmet body and method thereof |
| CN107549916A (en) * | 2017-08-18 | 2018-01-09 | 李锐 | A kind of battery truck helmet |
| CN109421196A (en) * | 2017-08-25 | 2019-03-05 | Abus·奥古斯特·布莱梅克·索恩有限股份两合公司 | Protective helmet manufacturing method and protective helmet manufactured according to the method |
| CN109421196B (en) * | 2017-08-25 | 2021-12-03 | Abus·奥古斯特·布莱梅克·索恩有限股份两合公司 | Method for manufacturing a protective helmet and protective helmet manufactured according to said method |
| CN111958985A (en) * | 2020-08-14 | 2020-11-20 | 安徽润宏塑料制品有限公司 | Helmet top belt positioning and gripping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1261058C (en) | 2006-06-28 |
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