CN104784918B - Hockey player's helmet and preparation method thereof - Google Patents
Hockey player's helmet and preparation method thereof Download PDFInfo
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- CN104784918B CN104784918B CN201510119132.0A CN201510119132A CN104784918B CN 104784918 B CN104784918 B CN 104784918B CN 201510119132 A CN201510119132 A CN 201510119132A CN 104784918 B CN104784918 B CN 104784918B
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- splice plate
- helmet
- obturator
- front lower
- lamellar
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- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 62
- 238000000576 coating method Methods 0.000 claims abstract description 62
- 239000000463 material Substances 0.000 claims abstract description 61
- 239000002184 metal Substances 0.000 claims abstract description 9
- 238000005253 cladding Methods 0.000 claims abstract description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 25
- 239000004917 carbon fiber Substances 0.000 claims description 25
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 25
- 239000010410 layer Substances 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 18
- 239000003822 epoxy resin Substances 0.000 claims description 12
- 229920000647 polyepoxide Polymers 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 11
- 239000006261 foam material Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 6
- 210000001161 mammalian embryo Anatomy 0.000 claims description 6
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 4
- 239000011496 polyurethane foam Substances 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims 1
- 238000013016 damping Methods 0.000 abstract description 5
- 230000003139 buffering effect Effects 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 241000150786 Athletes Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010019196 Head injury Diseases 0.000 description 1
- 208000028373 Neck injury Diseases 0.000 description 1
- 230000000386 athletic effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Abstract
The invention discloses a kind of hockey player's helmet and preparation method thereof, the described helmet includes the external coating of obturator, the internal coating of cladding obturator inner surface and cladding filling external surface being made up of expanded material；Internal coating is connected with external coating edge；Breach for constituting window is equipped with obturator, internal coating and external coating, described obturator is spliced to form by front lower splice plate, front upper splice plate, rear splice plate and two pieces of side splice plates；Metal mask (12) is provided with window；It is enclosed with fibrous layer on described rear splice plate.The present invention has lightweight, energy shock-absorbing damping, and resistance to impact is strong, long service life, improves the stability of ball-handling and the feature of the accuracy of batting.
Description
Technical field
The present invention relates to technical field of sports apparatus, especially relate to a kind of safe, lightweight, resistance to impact is strong,
Long service life, hockey player's helmet of energy shock-absorbing damping and preparation method thereof.
Background technology
Common hockey player's inner helmet no packing material, directly different with angle, shape is different, and size is different
Carbon fiber or glass fibre roll and form.
Common hockey player's helmet has the disadvantage that：
1st, the heavier mass of the Whole fiber helmet, in motion, the pressure bearing is larger, and physical demandss are relatively for hockey player
Greatly, increased the fatigue strength of sportsman.
2nd, Whole fiber helmet quality is harder, and when spheroid acts on the helmet, spheroid bounce-back dynamics is bigger, clashes into strength relatively
By force, spheroid bounce-back degree more apparent, be easily caused the vibrations of athlete's head, can to athlete's head and neck injuries,
Simultaneously because spheroid refractive effect also can cause potential safety hazard to other athletes.
3rd, after the Whole fiber helmet is subject to spheroid shock, spheroid bounce-back great efforts, speed is fast, and spheroid drop point site is difficult to sentence
Disconnected.
4th, when the Whole fiber helmet is subject to spheroid to clash into, sharp sound can be sent.
5th, Whole fiber helmet quality is more crisp, in protection, easily entirely fibrolaminar fracture occurs, causes safety to athlete
Hidden danger.
Chinese patent mandate publication number：CN203748734U, authorizes publication date August in 2014 6, discloses a kind of antidetonation
Fire hat, leads under the annular including the observation window before helmet body, helmet body and helmet body bottom and fire-entry suit overlap joint,
Described helmet body is multiple layer combination structure, and helmet body is followed successively by helmet outer fire resistant layer, helmet hard protection from the outside to the core
Layer, internal layer cushion, lining of helmet layer, wherein internal layer cushion are one layer of hollow layer, and hollow layer upper and lower surface is covered with buffering
Base plate, is distributed with column buffering projection, the column buffering raised staggered relative setting of upper and lower surface on buffering base plate；Described ring
Under shape, neck includes leading two-layer in neck and the helmet outside the helmet, is tightly connected outside the helmet in neck and the helmet between neck and helmet body.This
Bright weak point is, single function, and hockey player cannot use.
Content of the invention
The goal of the invention of the present invention be in order to overcome the heavier mass of the Whole fiber helmet of the prior art, quality harder and
Spheroid drop point site is difficult the deficiency judging, there is provided one kind is safe, lightweight, resistance to impact is strong, long service life, energy
Hockey player's helmet of shock-absorbing damping and preparation method thereof.
To achieve these goals, the present invention employs the following technical solutions：
A kind of hockey player's helmet, the obturator that the described helmet includes being made up of expanded material, cladding filling are internal
The internal coating on surface and the external coating of cladding filling external surface；Internal coating is connected with external coating edge；Filling
Breach for constituting window is equipped with body, internal coating and external coating, described obturator is by front lower splice plate, front upper spelling
Fishplate bar, rear splice plate and two pieces of side splice plates are spliced to form；Metal mask is provided with window；It is enclosed with described rear splice plate
Fibrous layer.
The filling plate that expanded material is made can improve integral rigidity and the torsional rigidity of the helmet, makes the elasticity increase of the helmet,
The time that spheroid rests on the helmet lengthens, and consumes more kinetic energy.Further, since this filling plate has raised or sunken, increase
The elasticity of hockey and frictional force, make the time of staying on helmet face for the hockey increase, spheroid drop point direction controllability is more preferable.
The shock-absorbing of expanded material and flat characteristic, the sound sending during the helmet is less so that spheroid is acted on, the resistance to punching of the helmet
Hit power more preferably, make helmet long service life.
When spheroid acts on the helmet, bounce reduces, and spheroid changes nyctitropic radian and reduces, and makes sportsman be easier to grasp
The drop point of spheroid, improves the stability of ball-handling and the accuracy of square stance.
The helmet containing obturator, even if the helmet ruptures, also simply the external coating on top layer and middle obturator break
Split, internal coating not easy fracture, athletic safety can be strengthened.
Therefore, the present invention have lightweight, can shock-absorbing damping, resistance to impact be strong, long service life, improves stablizing of ball-handling
Property and batting accuracy feature.
Preferably, the expanded material that adopted of described rear splice plate is polyurethane foam material, described fibrous layer by by
The carbon fiber yarn material that layer is wound around is constituted.
Polyurethane (PU) density of material is less, lightweight, has good elasticity and toughness, makes during Athletess more
Flexibly.
Preferably, the expanded material that described front lower splice plate, front upper splice plate and two pieces of side splice plates are adopted is
Epoxy resin foam material.
Epoxy resin (EPOXY) material has good compression performance and bending property, for hockey player's helmet
When, vibrations when spheroid clashes into be can absorb and reduce, the ruggedness of the helmet, Reducing distortion amount increased substantially.
The present invention makes the front lower splice plate frequently being clashed into by spheroid, front upper splice plate and two pieces of side splice plates adopt EPOXY
Expanded material is filled, and the rear splice plate being clashed into by spheroid once in a while adopts polyurethane (PU) expanded material to fill；The helmet is made both to have
Lightweight feature can meet the requirement of intensity again.
Preferably, the thickness of internal coating is less than the thickness of external coating.
Preferably, the thickness of front lower splice plate, front upper splice plate, rear splice plate and two pieces of side splice plates is 2-
4.5mm.
A kind of manufacture method of hockey player's helmet, comprises the steps：
(6-1) make helmet obturator：
(6-1-1) making of splice plate afterwards：
(6-1-1-1) expanded material block is cut into by the thick laminated structure of 2.8-5.5mm using instrument, with cutting machine by piece
Shape structure cuts into splice plate after lamellar；
(6-1-1-2) splice plate after lamellar is put in rear splice plate pressing mold, by splice plate pressure after lamellar after heating pressurization
Become the rear splice plate that thickness is 1-3mm；
After splice plate after extruding, increased the density of rear splice plate.
(6-1-1-3) with being wound around splice plate after parcel containing tackifying resin for constituting fibrolaminar carbon fiber yarn material；
(6-1-1-4) strip carbon fiber yarn material is wrapped up on the edge of rear splice plate；
(6-1-2) make front lower splice plate：
(6-1-2-1) 36-48g expanded material block is uniformly put in front lower splice plate pressing mold, front lower spelling after heating pressurization
Expanded material block is pressed into the front lower splice plate of lamellar by fishplate bar pressing mold；
(6-1-2-2) strip carbon fiber yarn material is wrapped on the edge of the front lower splice plate of lamellar, obtain front lower splice plate；
(6-1-3) upper splice plate before making：
(6-1-3-1) in upper splice plate pressing mold before 32-43g expanded material block uniformly being put into, front upper spelling after heating pressurization
Expanded material block is pressed into upper splice plate before lamellar by fishplate bar pressing mold；
(6-1-3-2) wrap up strip carbon fiber yarn material on the edge of splice plate on before lamellar, upper splice plate before obtaining；
(6-1-4) make side splice plate：
(6-1-4-1) expanded material block is put in the splice plate pressing mold of side, after heating pressurization, expanded material block is pressed into 1-
The thick laminated structure of 3mm；
(6-1-4-2) with cutting machine, laminated structure is cut into some pieces of side splice plates；
(6-2) make helmet preform：
If dried layer (6-2-1) is sticked on helmet pre-shaped fixture outer surface for constituting the carbon fiber yarn material of internal coating,
Obtain the helmet pre-shaped fixture being attached with internal coating；
(6-2-2) front upper splice plate, front lower splice plate, rear splice plate and two pieces of sides are spliced plate benging and are pasted on interior bag
Coating outer surface, makes front upper splice plate, front lower splice plate, rear splice plate and two pieces of side splice plates be spliced into the shape of obturator；
Internal coating edge is made to be connected with filling outside；
(6-2-3) some blocks of carbon fiber yarn material for constituting external coating are successively sticked on filling external surface, outward
Clad edge is connected with the internal coating on obturator medial surface；
(6-2-4) helmet pre-shaped fixture is separated with internal coating, obtain by internal coating, obturator and external coating structure
The helmet preform being provided with window becoming；
(6-3) helmet forming：
(6-3-1) helmet preform is put in helmet forming die, be heated under molding time T, forming temperature C
Type, obtains the thick embryo of the helmet；
(6-3-2) the polishing thick embryo of the helmet, installs metal mask on window, obtains hockey player's helmet of molding.
Preferably, also comprising the steps after step (6-1-1-3)：
After lamellar splice plate get on the bus on spiral fiber line.The purpose of fare is the breathability in order to increase the helmet, makes to fill out
Fill body with yarn material Coating combination more preferably, improve the resistance of the helmet.
Preferably, described molding time T is 55-68 minute, forming temperature C is 135-158 DEG C.
Therefore, the present invention has the advantages that：
(1) lightweight, energy shock-absorbing damping；
(2) resistance to impact is strong, long service life；
(3) stability of ball-handling and the accuracy of batting are improved.
Brief description
Fig. 1 is a kind of structural representation of the rear splice plate of the present invention；
Fig. 2 is a kind of structural representation of the front lower splice plate of the present invention；
Fig. 3 is a kind of structural representation of the front upper splice plate of the present invention；
Fig. 4 is a kind of structural representation of the side splice plate of the present invention；
Fig. 5 is a kind of structural representation of the obturator of the present invention；
Fig. 6 is a kind of structural representation of the helmet forming body of the present invention；
Fig. 7 is the rear splice plate after spiral fiber line on the car of the present invention；
Fig. 8 is the rear splice plate superscribing strip carbon fiber yarn material of the present invention；
Fig. 9 is the front lower splice plate superscribing strip carbon fiber yarn material of the present invention；
Figure 10 is the front upper splice plate superscribing strip carbon fiber yarn material of the present invention；
Figure 11 is a kind of structural representation of the helmet pre-shaped fixture of the present invention；
Figure 12 is the helmet pre-shaped fixture being attached with internal coating of the present invention；
Figure 13 is a kind of flow chart of embodiments of the invention；
Figure 14 is a kind of structural representation of the metal mask of the present invention.
In figure, obturator 1, internal coating 2, external coating 3, window 4, front lower splice plate 5, front upper splice plate 6, rear splicing
Plate 7, side splice plate 8, spiral fiber line 9, strip carbon fiber yarn material 10, helmet pre-shaped fixture 11, metal mask 12.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
Embodiment as shown in Figure 11, Figure 12, Fig. 5, Fig. 6 is a kind of hockey player's helmet, and the helmet includes by foaming
The external coating 3 of obturator 1, the internal coating 2 of cladding obturator inner surface and cladding filling external surface that material is made；Interior
Clad is connected with external coating edge；It is equipped with obturator, internal coating and external coating for constituting lacking of window 4
Mouthful, obturator is spliced to form by front lower splice plate 5, front upper splice plate 6, rear splice plate 7 and two pieces of side splice plates 8；Pacify on window
Equipped with metal mask 12 as shown in figure 14；It is enclosed with fibrous layer afterwards on splice plate.
As shown in figure 1, rear splice plate is in Long Circle, top edge is provided with two semicircular indentations；As shown in figure 3, on front
Splice plate semicircular in shape, arc-shaped side is provided with 3 V-arrangement sides；As shown in Fig. 2 front lower splice plate is by upper arc-shaped side, lower arc side, a left side
Side and right edge surround, upper arc-shaped side, lower arc side all upwards arc arch upward, left side is gradually tilted to the left from the bottom to top, right
Side is gradually tilted to the right from the bottom to top；As shown in figure 4, the shape of side splice plate is corresponding with the shape of semicircular indentations.
The expanded material that splice plate is adopted afterwards is polyurethane foam material, and fibrous layer is by the carbon fiber yarn material being successively wound around
Constitute.The expanded material that front lower splice plate, front upper splice plate and two pieces of side splice plates are adopted is epoxy resin foam material.
The thickness of internal coating is less than the thickness of external coating.Front lower splice plate, front upper splice plate, rear splice plate and two pieces of side splice plates
Thickness be 3mm.
As shown in figure 13, a kind of manufacture method of hockey player's helmet, comprises the steps：
Step 100, makes helmet obturator：
Step 110, the making of rear splice plate：
The polyurethane foam material block of 3.5cm × 4cm × 5.5cm is cut into 5.5mm thickness using instrument by step 111
Laminated structure is cut into splice plate after lamellar with cutting machine by laminated structure；
Step 112, splice plate after lamellar is put in rear splice plate pressing mold, is heated to 120 DEG C, is forced into 120kg, by piece
After shape, splice plate is pressed into the rear splice plate that thickness is 3mm；
Step 113, with being wound around splice plate after parcel containing tackifying resin for constituting fibrolaminar carbon fiber yarn material；?
After lamellar, splice plate is got on the bus upper spiral fiber line, obtains rear splice plate as shown in Figure 7；
Step 114, wraps up strip carbon fiber yarn material 10 on the edge of rear splice plate, obtains rear splicing as shown in Figure 8
Plate；
Step 120, makes front lower splice plate：
Step 121,48g epoxy resin foam material block is uniformly put in front lower splice plate pressing mold, is heated to 80 DEG C, plus
It is depressed into 120kg, epoxy resin foam material block is pressed into the front lower splice plate of lamellar by front lower splice plate pressing mold；
Step 122, wraps strip carbon fiber yarn material on the edge of the front lower splice plate of lamellar, obtain as shown in Figure 9 before
Lower splice plate；
Step 130, upper splice plate before making：
Step 131, in upper splice plate pressing mold before 43g epoxy resin foam material block is uniformly put into, is heated to 80 DEG C, plus
It is depressed into 120kg, epoxy resin foam material block is pressed into upper splice plate before lamellar by front upper splice plate pressing mold；
Step 132, before lamellar on splice plate edge on wrap up strip carbon fiber yarn material, obtain as shown in Figure 10 before
Upper splice plate；
Step 140, makes side splice plate：
Step 141, epoxy resin foam material block is put in the splice plate pressing mold of side, is heated to 80 DEG C, is forced into
120kg, epoxy resin foam material block is pressed into the thick laminated structure of 3mm；
Laminated structure is cut into polylith lamellar side splice plate with cutting machine by step 142；
Step 200, makes helmet preform：
Step 210, sticks 12 layers on helmet pre-shaped fixture 11 outer surface as shown in figure 11 and is used for constituting internal coating
Carbon fiber yarn material, obtain the as shown in figure 12 helmet pre-shaped fixture being attached with internal coating；
Step 220, as shown in figure 5, plate benging is spliced in front upper splice plate, front lower splice plate, rear splice plate and two pieces of sides
And it is pasted on internal coating outer surface, so that front upper splice plate, front lower splice plate, rear splice plate and two pieces of side splice plates is spliced into and fill out
Fill the shape of body；Internal coating edge is made to be connected with filling outside；
Step 230, as shown in fig. 6, it is fine successively to stick 15 blocks of carbon for constituting external coating on filling external surface
Dimension yarn material, external coating edge is connected with the internal coating on obturator medial surface；
Step 240, helmet pre-shaped fixture is separated with internal coating, obtains by internal coating, obturator and external coating
The helmet preform being provided with window constituting；
Step 300, helmet forming：
Step 310, helmet preform is put in helmet forming die, is 68 minutes in molding time T, forming temperature C
For hot briquetting at 158 DEG C, obtain the thick embryo of the helmet；
Step 320, the thick embryo of the helmet of polishing, metal mask installed by window, obtains hockey player's helmet of molding.
It should be understood that the present embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.In addition, it is to be understood that
After having read the content of present invention instruction, those skilled in the art can make various changes or modifications to the present invention, these etc.
Valency form equally falls within the application appended claims limited range.
Claims (7)
1. a kind of manufacture method of hockey player's helmet, the described helmet includes the obturator being made up of expanded material（1）, bag
Cover the internal coating of obturator inner surface（2）External coating with cladding filling external surface（3）；Internal coating and external coating
Edge is connected；It is equipped with for constituting window on obturator, internal coating and external coating（4）Breach, described obturator
By front lower splice plate（5）, front upper splice plate（6）, rear splice plate（7）With two pieces of side splice plates（8）It is spliced to form；Install on window
There is metal mask（12）；It is enclosed with fibrous layer on described rear splice plate；It is characterized in that, comprise the steps：
（1-1）Make helmet obturator：
（1-1-1）The making of splice plate afterwards：
（1-1-1-1）Expanded material block is cut into by the thick laminated structure of 2.8-5.5mm using instrument, with cutting machine, lamellar is tied
Structure cuts into splice plate after lamellar；
（1-1-1-2）Splice plate after lamellar is put in rear splice plate pressing mold, after heating pressurization, splice plate after lamellar is pressed into thickness
Spend the rear splice plate for 1-3mm；
（1-1-1-3）With being wound around splice plate after parcel containing tackifying resin for constituting fibrolaminar carbon fiber yarn material；
（1-1-1-4）Strip carbon fiber yarn material is wrapped up on the edge of rear splice plate（11）；
（1-1-2）Make front lower splice plate：
（1-1-2-1）36-48g expanded material block is uniformly put in front lower splice plate pressing mold, front lower splice plate after heating pressurization
Expanded material block is pressed into the front lower splice plate of lamellar by pressing mold；
（1-1-2-2）Strip carbon fiber yarn material is wrapped on the edge of the front lower splice plate of lamellar, obtains front lower splice plate；
（1-1-3）Upper splice plate before making：
（1-1-3-1）In upper splice plate pressing mold before 32-43g expanded material block is uniformly put into, front upper splice plate after heating pressurization
Expanded material block is pressed into upper splice plate before lamellar by pressing mold；
（1-1-3-2）Strip carbon fiber yarn material is wrapped up, upper splice plate before obtaining on the edge of splice plate on before lamellar；
（1-1-4）Make side splice plate：
（1-1-4-1）Expanded material block is put in the splice plate pressing mold of side, after heating pressurization, expanded material block is pressed into 1-3mm thick
Laminated structure；
（1-1-4-2）With cutting machine, laminated structure is cut into some pieces of side splice plates；
（1-2）Make helmet preform：
（1-2-1）If dried layer is sticked on helmet pre-shaped fixture outer surface for constituting the carbon fiber yarn material of internal coating, obtain
It is attached with the helmet pre-shaped fixture of internal coating；
（1-2-2）Front upper splice plate, front lower splice plate, rear splice plate and two pieces of sides are spliced plate benging and are pasted on internal coating
Outer surface, makes front upper splice plate, front lower splice plate, rear splice plate and two pieces of side splice plates be spliced into the shape of obturator；In making
Clad edge is connected with filling outside；
（1-2-3）The some blocks of carbon fiber yarn material for constituting external coating, outer cladding are successively sticked on filling external surface
Layer edge is connected with the internal coating on obturator medial surface；
（1-2-4）Helmet pre-shaped fixture is separated with internal coating, obtains being made up of internal coating, obturator and external coating
It is provided with the helmet preform of window；
（1-3）Helmet forming：
（1-3-1）Helmet preform is put in helmet forming die, hot briquetting under molding time T, forming temperature C, obtain
To the thick embryo of the helmet；
（1-3-2）The polishing thick embryo of the helmet, installs metal mask on window, obtains hockey player's helmet of molding.
2. the manufacture method of hockey player's helmet according to claim 1, is characterized in that, described rear splice plate is adopted
Expanded material is polyurethane foam material, and described fibrous layer is made up of the carbon fiber yarn material being successively wound around.
3. the manufacture method of hockey player's helmet according to claim 1, is characterized in that, described front lower splice plate,
The expanded material that front upper splice plate and two pieces of side splice plates are adopted is epoxy resin foam material.
4. the manufacture method of hockey player's helmet according to claim 1, is characterized in that, the thickness of internal coating is little
Thickness in external coating.
5. the manufacture method of hockey player's helmet according to claim 1, is characterized in that, front lower splice plate, front on
The thickness of splice plate, rear splice plate and two pieces of side splice plates is 2-4.5mm.
6. the manufacture method of hockey player's helmet according to claim 1, is characterized in that, step（6-1-1-3）Afterwards
Also comprise the steps：
After lamellar splice plate get on the bus on spiral fiber line（9）.
7. the manufacture method of the hockey player's helmet according to claim 1 or 2 or 3 or 4 or 5 or 6, is characterized in that,
Described molding time T is 55-68 minute, and forming temperature C is 135-158 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510119132.0A CN104784918B (en) | 2015-03-18 | 2015-03-18 | Hockey player's helmet and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510119132.0A CN104784918B (en) | 2015-03-18 | 2015-03-18 | Hockey player's helmet and preparation method thereof |
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| Publication Number | Publication Date |
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| CN104784918A CN104784918A (en) | 2015-07-22 |
| CN104784918B true CN104784918B (en) | 2017-03-01 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101417489B (en) * | 2008-11-14 | 2014-07-30 | 联塑(杭州)机械有限公司 | Helmet manufacture method and products thereof |
| TWI507142B (en) * | 2010-05-04 | 2015-11-11 | Easton Baseball Softball Inc | Helmet for baseball pitchers and fielders |
| US20140373256A1 (en) * | 2012-04-26 | 2014-12-25 | Philip R. Harris | Helmet pads |
| US9072330B2 (en) * | 2013-03-25 | 2015-07-07 | Sebastian Yoon | Magnetically repulsive sport equipment |
| CN203492851U (en) * | 2013-09-03 | 2014-03-26 | 李焕玲 | Safety helmet reinforcement structure |
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