Protective mask
阅读说明:本技术 防护面罩 (Protective mask ) 是由 J·克莱因 A·恩格尔 于 2014-05-01 设计创作,主要内容包括:本发明提供一种与具有防护面具的头戴装置一起使用的吸震器,所述吸震器具有滑动构件,所述滑动构件并不以使得所述吸震器易于损坏的方式延伸超过所述吸震器的支撑结构。具有防护面具的头戴装置提供受保护的安装位置以便于安装所述防护面具的吸震器。(The present invention provides a shock absorber for use with a headgear having a faceguard, the shock absorber having a sliding member that does not extend beyond a support structure of the shock absorber in a manner that makes the shock absorber susceptible to damage. Headgear with a faceguard provides a protected mounting location to facilitate mounting of a shock absorber of the faceguard.)
1. A protective headgear, comprising:
a head-engaging portion;
a protective mask; and
a plurality of shock absorbers, each of the plurality of shock absorbers connecting the faceguard to the head-engaging portion;
wherein the head-engaging portion includes a first frame member and a second frame member, the first frame member being larger than the second frame member and sized to substantially surround a wearer's face, a plurality of pairs of L-shaped straps connecting the second frame member to the first frame member, each pair of L-shaped straps supporting a respective one of the plurality of shock absorbers such that the respective one shock absorber is in a protected position between the first frame member and the second frame member of the head-engaging portion.
2. A protective headgear, comprising:
a head-engaging portion;
a protective mask; and
a plurality of shock absorbers, each of the plurality of shock absorbers connecting the faceguard to the head engaging portion, wherein each of the plurality of shock absorbers is for supporting the faceguard relative to the head engaging portion, each of the plurality of shock absorbers comprising:
a support structure adapted to be attached to one of the head-engaging portion and the faceguard;
a guide rod supported by the support structure in a fixed position relative to the support structure, the guide rod having first and second ends, a length, and a longitudinal axis;
a sliding member guided by the guide bar for linear movement in a direction parallel to the longitudinal axis of the guide bar, the sliding member being adapted to be attached to the other of the head-engaging portion and the faceguard; and
a resilient member acting on the sliding member to bias the sliding member toward the first end of the guide bar, wherein the resilient member is configured to absorb at least a portion of impact energy of an object impacting the faceguard when impact of the object against the faceguard causes the sliding member to move toward the second end of the guide bar;
wherein the sliding member has an opening therethrough and the guide rod extends through the opening; and
wherein the support structure supports the guide bar at the first end of the guide bar and at the second end of the guide bar; and
wherein the head-engaging portion includes a first frame member and a second frame member, the first frame member being larger than the second frame member and sized to substantially surround a wearer's face, a plurality of pairs of L-shaped straps connecting the second frame member to the first frame member, each pair of L-shaped straps supporting a respective one of the plurality of shock absorbers such that the respective one shock absorber is in a protected position between the first frame member and the second frame member of the head-engaging portion.
3. The protective headgear of claim 2 wherein the resilient member is in the form of a coil spring.
4. The protective headgear of claim 3 wherein the resilient member is in the form of a coil spring disposed on the guide bar between the sliding member and the second end of the guide bar and biasing the sliding member toward the first end of the guide bar.
5. The protective headgear of claim 2 wherein the resilient member takes the form of a plurality of coil springs having a plurality of turns.
6. The protective headgear of claim 5 wherein the resilient member is in the form of a coil spring having a plurality of turns and a stem extending through the plurality of turns.
7. The protective headgear of claim 3, wherein the coil spring has a first end and a second end, and wherein the first end of the coil spring directly or indirectly abuts a portion of the sliding member and the second end of the coil spring directly or indirectly abuts a portion of the support structure adjacent the second end of the stem.
8. The protective headgear of claim 5 wherein the resilient member is in the form of a plurality of coil springs having a plurality of turns, wherein a first guide rod extends through the plurality of turns in the first spring and a second guide rod extends through the plurality of turns in the second spring.
9. The protective headgear of claim 3 wherein the resilient member takes the form of a coil spring positioned intermediate a portion of the sliding member surrounding the opening and the second end of the guide rod.
10. The protective headgear of claim 3 wherein the shock absorber comprises a form of coil spring having a spring rate of between 15 pounds and 50 pounds.
11. The protective headgear of claim 10 wherein the spring rate is 25 pounds.
1. Field of the invention
The present invention relates to a headgear having a faceguard provided with shock absorbing means, and to a shock absorber suitable for use as a shock absorbing means.
2. Description of the prior art
In recent years, the effects of concussions (including repetitive mild concussions) on the health of athletes involved in sports where the head and face of the athlete are most likely to be severely impacted have been of great concern to athletes, sports teams, sports league authorities, and the public. Head impact can also cause neck injuries, which are sometimes severe enough to paralyze athletes. The neck may be particularly damaged in the event that the face is struck from the front. Athletes participating in such sports conventionally wear protective headgear in the form of a hard helmet having a visor rigidly attached thereto. The area inside the helmet that wraps around the wearer's head (excluding the facial area) is provided with a soft cushion. In some other sports (e.g., baseball), the protective headgear worn is simply a rigid mask with cushioning padding placed on an outer frame that is secured to the wearer's face in the area around the wearer's face. While conventional headgear does mitigate the effects of impact on the head and neck to some extent, it does not reduce the risk of head and neck injury to a desired degree. The prior art therefore proposes, in part, a protective headgear provided with a shock-absorbing element between its visor portion and the portion engaging the head, which further reduces the risk of injury to the wearer. However, prior art headgear with shock absorbing respirators have not been widely adopted. There is a need for a shock absorber for a headgear protection surface that is strong enough, compact enough and unobtrusive, yet sufficiently adaptable to a wide variety of applications. There is also a need for a headgear that can effectively incorporate such a shock absorber, and a headgear that can protect such a shock absorber well. It is believed that none of the prior art headgear teaches or addresses the unique features of the present invention nor achieves the advantages of the present invention which will become apparent to those skilled in the art upon review of the following detailed description and drawings.
Background
Disclosure of Invention
The present invention relates to a shock absorber, and a head-mounted device using the shock absorber. The headgear includes a faceguard and a head-engaging member. The shock absorber supports the protective faceguard relative to the head-engaging member. The shock absorber includes a support structure, a guide rod, a sliding member, and an elastic member. The support structure is adapted to be rigidly attached to the head engaging member or the faceguard. The guide bar is supported by the support structure in a fixed position relative to the support structure. The guide rod has a first end, a second end, a length, and a longitudinal axis. The guide bar is supported near both ends by a support structure. The slide member is guided by the guide rod for linear movement in a direction parallel to the longitudinal axis of the guide rod. The movement of the sliding member is limited between the two ends of the guide rod. The sliding member is adapted to be rigidly attached to the head engaging member or the faceguard, in particular to which of the two components is attached, depending on which component has the support structure attached. The resilient member acts on the slide member to bias the slide member toward one end of the guide bar. In the illustrated example, the resilient member is a coil spring disposed on the guide rod at a location between the sliding member and the second end of the guide rod, biasing the sliding member toward the first end of the guide rod. In the example shown, the support structure is attached to the head-engaging member and the sliding member is attached to the faceguard. When an object impacts the faceguard, the force of the impact pushes the sliding member from one end of the guide rod toward the other end, causing the coil spring to compress. Accordingly, the resilient member (in this case, the coil spring) may absorb at least a portion of the impact energy of the object, thereby mitigating the impact of the object on the faceguard.
The headgear of the present invention includes a head-engaging portion and a faceguard. In a first exemplary embodiment, the head-engaging portion includes a first closed frame and a second closed frame. The first frame is larger and is designed to surround the face of the wearer. The first frame is closest to the wearer's face. The second frame also surrounds the wearer's face and appears substantially concentric with the first frame when the second frame is viewed by an observer from a front relative to the wearer's face. The second frame is spaced from the first frame such that the second frame is a greater distance from the wearer's face than the first frame. The second frame is connected to the first frame by pairs of L-shaped bars. Each pair of L-shaped bars supports the shock absorber in a protected position between the first frame and the second frame engaging the portion of the head. The respirator includes a closed frame that surrounds the wearer's face when viewed from the front relative to the wearer's face by an observer. The frame of the respirator is larger than the second frame of the head-engaging portion, which encompasses the second frame of the head-engaging portion when the frame of the respirator is viewed by an observer from the front relative to the wearer's face. The respirator includes a first plurality of strips that are substantially parallel to a sagittal plane of the wearer's body; and a second plurality of strips parallel to the transverse plane of the wearer's body. These multiple straps are attached to the frame of the respirator in a manner that is positioned in front of the wearer's face, thus providing protection to the wearer's face. These multiple strips are positioned to provide complete protection to the entire frontal area of the wearer's head. The frame of the faceguard is attached to a plurality of shock absorbers.
In a first exemplary embodiment, the support structure of the shock absorber is rigidly attached to a respective pair of L-shaped bars when the sliding member is rigidly attached to the frame of the faceguard.
In a second exemplary embodiment, the support structure of the shock absorber is adapted to be welded to the head-engaging portion of the headgear. Screw fasteners have also been used to secure the guide rods to the support structure.
In a third exemplary embodiment, the support structure of the shock absorber is modified.
In a fourth exemplary embodiment, the head-engaging portion includes a combination of a shield cover and a fixing frame. The shield covers the forehead, the anterior crown of the skull, both sides of the head and the chin of the wearer. The mask has a facial opening in an area corresponding to the mouth, nose and eyes of the wearer. The fixed frame is fixedly attached to the inside of the mask in a manner positioned intermediate the mask and the wearer's head. The fixing frame substantially surrounds the area corresponding to the opening of the mask cover. Three shock absorber units made in accordance with the present invention support the faceguard relative to the head-engaging portion. The three shock absorber units attach the faceguard to the fixed frame and thus to the head-engaging portion. The shadow mask has an opening that allows the shock absorber unit to be attached to the fixed frame.
The shielding cover can be made of glass fiber, carbon fiber composite material,Molded polycarbonate, combinations of these materials, and any other material suitable for use in a protective shell of a protective headgear.
Another aspect of the invention provides a suitable padding designed to be inserted between the head of the wearer and the rigid part of the head-engaging portion of the headgear of the invention. The padding provided as part of the head engaging portion of the headgear of the invention should be adapted to receive the shock absorber unit so that the shock absorber unit can be properly installed and can operate unimpeded.
The term "head-engaging portion or member" as used herein may include, but is not limited to, frames, shields, helmets, combinations of these components, padding associated with these components, padding strips, and straps for securing the headgear of the present invention to the head of a wearer. Depending on the material used and the intended use, the shock absorber unit may be attached to the shield or helmet, rather than to the fixed frame.
The shock absorber or headgear may be configured such that the sliding member is attached to the portion that engages the head and the support structure of the shock absorber is attached to the faceguard. In addition, the attachment between the shock absorber and the head-engaging portion, the attachment between the shock absorber and the faceguard, or both, may be made flexible rather than rigid, so long as the attachment member used is resilient and strong enough to withstand the impact it is intended to receive.
In view of this, the object of the present invention is to provide a shock absorber for a faceguard having a sliding member that does not extend beyond the support structure of the shock absorber, so that the sliding member is not in a vulnerable position.
It is another object of the present invention to provide a sturdy shock absorber for a respirator.
It is another object of the present invention to provide a compact shock absorber for a faceguard.
It is a further object of the present invention to provide an unobtrusive shock absorber for a respirator.
It is a further object of the present invention to provide a shock absorber for a respirator that is adaptable to a variety of applications.
It is a further object of the present invention to provide a headgear provided with a protected mounting location for mounting a shock absorber for a faceguard.
These and other objects of the present invention will become apparent to those skilled in the art upon a review of the following detailed description and drawings.
Drawings
Fig. 1 is a front view of a headgear according to the present invention.
Fig. 2 is a right side view of a headgear according to the present invention.
Fig. 3 is an isometric front view of a headgear according to the present invention.
Fig. 4 is an isometric rear view of a headgear according to the present invention.
Fig. 5 is an isometric top view of a headgear according to the present invention.
Fig. 6 is a top view of a headgear according to the present invention.
Fig. 7 is a bottom view of a headgear according to the present invention.
Figure 8 is an isometric view of a shock absorber according to the present invention.
Figure 9 is an exploded view of a shock absorber according to the present invention.
Figure 10 is an isometric view of a shock absorber according to a second embodiment of the present invention.
Figure 11 is an exploded view of a shock absorber according to a second embodiment of the present invention.
Figure 12 is an isometric view of a shock absorber according to a third embodiment of the present invention.
Figures 13-14 are views of a support structure or support carrier for a shock absorber according to a third embodiment of the present invention prior to bending thereof into its final form.
Fig. 15 to 25 are views of a protective headgear having a combination of a shield and a fixing frame according to a third embodiment of the present invention.
Fig. 26-31 are views of padding suitable for use in a protective headgear according to the present invention.
Like reference numerals designate corresponding parts throughout the several views.
Detailed Description
Referring to fig. 1 to 9, a first exemplary embodiment of the present invention relates to a
The
In the illustrated embodiment, the support structure 102 of the
The slide member 142 has an opening 144 therethrough, and the guide rod 122 extends through the opening 144. The support structure 102 supports the guide rods 122 at first and second ends 124, 126 of the guide rods 122. The resilient member 152 may be a coil spring 154 having a plurality of turns. Guide rod 122 extends through multiple turns of coil spring 154. A coil spring 154 is positioned in the slide member 142 between a portion surrounding the opening 144 and the second end 126 of the guide rod 122.
The coil spring 154 has a first end and a second end, and the first end of the coil spring 154 directly or indirectly abuts a portion of the sliding member 142 surrounding the opening 144. A second end of the coil spring 154 directly or indirectly abuts a portion of the support structure 102 adjacent the second end of the guide rod 122.
Slide member 142 has at least one aperture 148, and aperture 148 is adapted to engage at least one
The support structure 102 has means for engaging with at least one support structure fastener 162,164, thereby rigidly attaching the support structure 102 to the head-engaging
In the illustrated embodiment,
Thus, the slide member 142 has a first opening 144 and a second opening 146 extending therethrough. First guide rod 122 extends through first opening 144 and second guide rod 132 extends through second opening 146. The support structure 102 supports the first guide bar 122 at a first end 124 and a second end 126 of the first guide bar 122. The support structure 102 supports the second guide bar 132 at a first end 134 and a second end 136 of the second guide bar 132.
The elastic member 152 includes a first coil spring 154 and a second coil spring 156. First coil spring 154 has a plurality of turns 158, and first guide rod 122 extends through the plurality of turns of first coil spring 154. Second coil spring 156 has a plurality of turns 160, and second guide 132 extends through the plurality of turns of second coil spring 156. A first coil spring 154 is positioned intermediate the first portion of the slide member 142 and the second end 126 of the first guide rod 122. Second coil spring 156 is positioned intermediate the second portion of slide member 142 and second end 136 of second guide rod 132.
The first coil spring 154 has a first end 155 and a second end 157. A first end 155 of the first coil spring 154 directly or indirectly abuts a first portion of the sliding member 142 and a second end 157 of the first coil spring 154 directly or indirectly abuts a first portion of the support structure 102 adjacent the second end 126 of the first guide rod 122. In the example shown, the second end 157 of the first coil spring 154 is directly against the support structure 102, and in particular, directly against the second end plate 108. The first end 155 of the first coil spring 154 indirectly abuts the slide member 142. However, the spring 154 may bear directly or indirectly against any of these parts while the shock absorber is still within the scope of the appended claims. For example, one or more gaskets may be provided between the second end 157 of the coil spring 154 and the second end plate 108 to prevent the coil spring from damaging the end plate; alternatively, the first end 155 of the coil spring 154 may be brought into direct contact with the sliding member 142 while the shock absorber still retains its function.
The second coil spring 156 has a first end 159 and a second end 161. A first end 159 of the second coil spring 156 directly or indirectly abuts a second portion of the sliding member 142, and a second end 161 of the second coil spring 156 directly or indirectly abuts a second portion of the support structure 102 adjacent the second end 136 of the second guide rod 132. In the example shown, the second end 161 of the second coil spring 156 is directly against the support structure 102, and in particular, directly against the second end plate 108. The first end 159 of the second coil spring 156 indirectly abuts the slide member 142. However, the spring 156 may bear directly or indirectly against any of these parts while the shock absorber is still within the scope of the appended claims. For example, one or more gaskets may be provided between the second end 161 of the coil spring 156 and the second end plate 108 to prevent the coil spring from damaging the end plate; alternatively, the first end 159 of the coil spring 156 may be brought into direct contact with the sliding member 142 while the shock absorber still retains its function.
In the illustrated embodiment, the first end plate 106 has a first aperture 110 for receiving the first end 124 of the first guide rod 122 and a second aperture 112 for receiving the first end 134 of the second guide rod 132. Second end plate 108 has a first aperture 114 for receiving second end 126 of first guide rod 122 and a second aperture 116 for receiving second end 136 of second guide rod 132. Aperture 110 is aligned with aperture 114 and aperture 112 is aligned with aperture 116.
The guide rod 122 has a first diameter and a second diameter. The second diameter is smaller than the first diameter. The second end 126 of the guide rod 122 occupies a substantial portion of the first diameter. The first end 124 and the portion of the guide rod 122 extending between the first end 124 and a location adjacent the second end 126 substantially have a second diameter. This arrangement forms an annular step or shoulder 123 adjacent the second end 126 of the first guide rod 122. The portion of the stem 122 extending from the shoulder 123 to the second end 126 has a first diameter. The terminal portions of the first ends 124 of the guide rods 122 extend through the holes 110 in the end plate 106. An annular groove 125 is provided on a terminal portion of the first end 124 of the guide rod 122, on a side of the end plate 106 opposite to a side of the end plate 106 facing the slide member 142. An E-clamp or retaining
The guide rod 132 has a first diameter and a second diameter. The second diameter is smaller than the first diameter. The second end 136 occupies a substantial portion of the first diameter. The first end 134 and the portion of the guide rod 132 extending between the first end 134 and a location adjacent the second end 136 have a second diameter. This arrangement forms an annular step or shoulder 133 adjacent the second end 136. The portion of the rod 132 extending from the shoulder 133 to the second end 136 has a first diameter. The terminal portions of the first ends 134 of the guide rods 132 extend through the apertures 112 in the end plate 106. An annular groove 135 is provided on a terminal portion of the first end 134 of the guide rod 132, on a side of the end plate 106 opposite to a side of the end plate 106 facing the slide member 142. An E-shaped clamp or retaining
In the illustrated embodiment, the guide rods 122 and 132 are identical. One or both of the guide rods 122 and 132 may be configured to provide a second shoulder or flange (not shown) near their second ends 126,136, such that the second end 157 of the spring 154 and the second end 161 of the spring 156 abut the second shoulder or flange rather than the second end plate 108. Thus, the second ends 157, 161 of the springs 154 and 156 may bear directly against the support structure 102.
In the illustrated embodiment, a plurality of tabs 218 are provided on the
In the illustrated embodiment, first tubular sleeve 219 and second tubular sleeve 222 are disposed at openings 144 and 146, respectively, to provide a larger bearing surface between sliding member 142 and guide rods 122 and 132, thereby reducing the inclination of the sliding member relative to the guide rods, thereby reducing the likelihood of sliding member 142 jamming on the guide rods. First tubular sleeve 219 and second tubular sleeve 222 engage openings 144 and 146, respectively. To simplify manufacturing, the first tubular sleeve 219 and the second tubular sleeve 222 are identical. Each of the first tubular sleeve 219 and the second tubular sleeve 222 has a first portion 224,226, respectively, and a second portion 228,230, respectively. Each of the first and second tubular sleeves 219, 222 has an annular flange 232,234, respectively, positioned between the first and second portions 224,226, 228,230 of the tubular sleeve. The guide rods 122 extend through the first barrel 219 and the guide rods 132 extend through the second barrel 222.
With the flange 232 of the first barrel 219 abutting the slide member 142, the first portion 224 of the second barrel 219 fits into the opening 144 of the slide member 142. The second portion 228 of the first barrel 219 fits into the space between the turns of the spring 154 and the portion of the guide rod 122 having the second diameter. The first end 155 of the coil spring 154 engages the flange 232 of the sleeve 219 to bias the slide member 142 toward the first end 124 of the guide rod 122. Thus, the spring 154 indirectly abuts the slide member 142.
With the flange 234 of the second sleeve 222 abutting the slide member 142, the first portion 226 of the sleeve 222 fits into the opening 146 of the slide member 142. Second portion 230 of second sleeve 222 fits into the space between the turns of spring 156 and the portion of guide 132 having the second diameter. The first end 159 of the coil spring 156 engages the flange 234 of the sleeve 222 to bias the slide member 142 toward the first end 134 of the guide rod 132. Thus, the spring 156 indirectly abuts against the slide member 142.
The headgear shown is particularly suited for use by a baseball catcher or referee. In use, the
Referring to fig. 10 and 11, a shock absorber 300 in accordance with a second embodiment of the present invention can be seen. The shock absorber 300 has a
The side flanges 118,120 and holes 174,176 are eliminated from the
The
The
Referring to figures 12 to 14, a shock absorber 500 in accordance with a third embodiment of the present invention can be seen. Shock absorber 500 has a
The side flanges 118,120 and holes 174,176 are eliminated from the
Referring to fig. 15 to 25, a
The side flanges 118,120 and holes 174,176 are eliminated from the
Alternatively,
The fixed
In the illustrated embodiment, a plurality of
Referring to fig. 26-31, an example of a pad for use with the protective headgear of the present invention or other protective headgear can be seen. These pads include an
A spring rate in the range of about 15 pounds to about 50 pounds appears to provide the best results. Most preferably, the spring rate is about 25 pounds. Any of the various disclosed shock absorbers and various disclosed pads can be used with any of the disclosed protective headgear or with other protective headgear.
Test results
The united states sports equipment standards group committee (NOCSAE) published a test method for assessing the risk of head injury associated with an athlete's headgear. In the united states, only four independent facilities are approved by NOCSAE for testing sports equipment. Baseball catcher face shields according to the present invention were tested in a NOCSAE approved facility. Additionally, currently available comparative panelist protective masks were also tested for comparison. The results of the testing are provided in tables 1 and 2 below.
Severity Index (SI) is defined as follows:
wherein: a is the instantaneous resultant acceleration, expressed as a multiple of g (gravitational acceleration); dt is the time increment in seconds; and the integration is performed within the basic duration (T) of the acceleration pulse. The lower the SI, the lower the risk of damage, while the higher the acceleration, the higher the risk of damage. For similar SI, the higher the acceleration, the higher the risk of injury.
As can be seen from these results, both the SI and the peak acceleration of the face shield according to the present invention are significantly reduced, and therefore the risk of injury from a ball impact is expected to be correspondingly reduced.
It is to be understood that the present invention is not limited to the embodiments described above, but encompasses any and all embodiments within the scope of the subjoined claims.
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