CN101584509A - Opening and closing device and possess the helmet of this opening and closing device - Google Patents

Opening and closing device and possess the helmet of this opening and closing device Download PDF

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Publication number
CN101584509A
CN101584509A CNA2009101414836A CN200910141483A CN101584509A CN 101584509 A CN101584509 A CN 101584509A CN A2009101414836 A CNA2009101414836 A CN A2009101414836A CN 200910141483 A CN200910141483 A CN 200910141483A CN 101584509 A CN101584509 A CN 101584509A
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CN
China
Prior art keywords
parts
opening
closing device
guard shield
switching
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Granted
Application number
CNA2009101414836A
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Chinese (zh)
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CN101584509B (en
Inventor
加藤秀夫
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Katoh Electrical Machinery Co Ltd
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Katoh Electrical Machinery Co Ltd
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Priority claimed from JP2008265725A external-priority patent/JP5534663B2/en
Application filed by Katoh Electrical Machinery Co Ltd filed Critical Katoh Electrical Machinery Co Ltd
Publication of CN101584509A publication Critical patent/CN101584509A/en
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Publication of CN101584509B publication Critical patent/CN101584509B/en
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Abstract

The invention provides a kind of parts carry that will open and close is can be with respect to the opening and closing device that is opened and closed by the switching parts and the helmet that possesses this opening and closing device, it is characterized in that, this opening and closing device has: installing component, and it is installed into respect to described, and to be opened and closed parts be that the center rotates with described switching parts with the rotating shaft; Rotary part, it is installed in extending on the installation portion that is provided with from pivot towards radial direction of this installing component in the mode that can rotate, and is engaged by the switching parts with described; And be arranged on the described installation portion of described installing component and the friction torque generation unit between the described rotary part, when parts open and close described switching parts described switching parts are stopped with respect to described the switching freely to stop mode.

Description

Opening and closing device and possess the helmet of this opening and closing device
Technical field
The present invention relates to a kind of being suitable for and make the switching parts with respect to being opened and closed the opening and closing device that uses when parts open and close freely to stop mode and the helmet that possesses this opening and closing device.
Background technology
The present invention be more particularly directed to a kind of being suitable for and open and close the opening and closing device that uses when parts open and close in the mode that can stop at any opened and closed positions and the helmet that possesses this opening and closing device for the quilt such with respect to helmet body in the switching parts carry that guard shield is such.
For example, known have a following helmet: the described helmet possesses at front surface and has the helmet body of peristome and the guard shield that this peristome is opened and closed, and by opening and closing device guard shield is opened and closed in the mode that can stop at the optional position with respect to helmet body.The end of the guard shield of this helmet is connected the sidepiece of helmet body via opening and closing device in the mode that can rotate, can utilize guard shield to cover peristome or unlimited peristome as required.
As this opening and closing device, register in Japanese Utility Model and to propose to have following opening and closing device in No. 2541873 communique, described opening and closing device with supporting hood shield for opening and closing with respect to helmet body, and make the friction torque that produces the switching direction between helmet body and the guard shield, thereby guard shield is opened and closed in the mode that can stop at any opened and closed positions with respect to helmet body.
The opening and closing device that this known document is put down in writing has: guide member, and it is arranged on the both sides of helmet body, and can support the both ends of guard shield with opening and closing; And the friction torque generation unit, it makes between helmet body and the guard shield and produces friction torque, so that guard shield stops at the optional position with respect to helmet body.Friction torque generation unit herein produces friction torque around the axis of axis body, thereby guard shield is stopped in any opened and closed positions with respect to helmet body, and described axis body supports the guard shield axle for opening and closing with respect to helmet body.
But, producing in the friction torque generation unit of friction torque around the axis of axis body the opening and closing device of putting down in writing as above-mentioned known document, exist not necessarily can produce enough rotary resistances, cause the situation of the guard shield landing of opening.If go for, then need bigger friction area, therefore the problem that exists opening and closing device to maximize for fear of the required friction torque of this situation.
On the other hand, if constitute the position that produces friction and be on radial direction the position that center of rotation from guard shield (guard shield rotates with respect to helmet body and the center of rotation that opens and closes) is left, then simple in structure, even and small-sizedly also can guarantee bigger rotary resistance.But,, then can cause this circular-arc groove to hinder visual field or become the problem of disadvantageous principal element aspect intensity (being easy to generate the principal element in crackle or crack) if for example originally form (radius) bigger circular-arc slot part on one's body for this reason at guard shield.
On the other hand, though for the opening and closing device small-sized but friction torque that needs are bigger, palm PC), first framework that is provided with operating portion (by opening and closing parts) of the small portable apparatus of notebook computer and so on and also need this opening and closing device when being provided with second framework (switching parts) switching of display unit except the helmet, make pocket telephone, PDA (Personal Digital Assistant:.
Summary of the invention
The present invention makes in order to solve above-mentioned problem, its purpose is the helmet or the portable equipment that a kind of small compact are provided and do not account for the opening and closing device that the space is set and have this opening and closing device, though thereby described opening and closing device is small-sized and simple in structurely can produce bigger friction torque and can make and open and close parts and stably stop in opened and closed positions arbitrarily.
In order to reach above-mentioned purpose, opening and closing device of the present invention will open and close parts carry for opening and closing with respect to being opened and closed parts, described opening and closing device is characterised in that, and being opened and closed between parts and the described switching parts of leaving of guide member be provided with the friction torque generation unit, this friction torque generation unit comprises: be installed in the installing component that opens and closes on the parts; And rotary part, it is installed into can be with respect to this installing component rotation, and engaged by the switching parts with described, make between described installing component and the rotary part and produce friction torque, so that described switching parts are stopped freely stopping mode with respect to opening and closing parts.
According to the present invention, be provided as and open and close the friction torque generation unit of the parts of parts split at the position of leaving with guide member, make the switching parts with respect to being opened and closed the friction torque that parts stop with generation, described guide member will open and close parts carry for opening and closing with respect to being opened and closed parts, thus, even the friction torque that produces between installing component that constitutes the friction torque generation unit and rotary part is less, to open and close parts also can the limit big with respect to being opened and closed the torque that produces when parts with the guide member are the axle rotation making, therefore, even small-sized opening and closing device also can make to open and close parts with respect to being stopped freely stopping mode by the switching parts.
Opening and closing device constitutes and will open and close the both ends supporting of parts for opening and closing with respect to the parts that opened and closed that constitute the helmet, this opening and closing device is characterised in that, the opening and closing device that is arranged at least one end that opens and closes parts is by constituting with lower member: cap, and it has a support and is fastened to described the switching on the parts; Installing component, it is bearing on the described axle support of described cap and is installed into and can rotates with described switching parts; Fixed arm, itself and this installing component is installed coaxially, and is fixed on described the switching on the parts; Torque pin, it is installed in from the position that the mounting center of described fixed arm is left, and runs through and be inserted in the circular-arc guiding slotted hole, described guiding slotted hole be arranged on described installing component from the position that pivot leaves; And the friction torque generation unit, it is made of friction washer and elastomeric element, and described friction washer and elastomeric element are arranged between installing component and the fixed arm, and described torque pin runs through the central part that is inserted in described friction washer and elastomeric element.
In opening and closing device of the present invention, preferred described friction torque generation unit comprises: installing component, and it has in the mode that can rotate and is bearing in the swivel bearing portion of the ring-type on the guide member and from the outstanding installation portion of the periphery of this swivel bearing portion; Torque pin, it is installed on the installation portion of described installing component or is installed in stationary state on the installation portion of described installing component in the mode that can rotate; Rotary part, it perhaps is installed on the described torque pin in the mode that can rotate around the axis of torque pin can be installed in the mode that described torque pin is rotated on this torque pin; And elastomeric element, it is arranged on the torque pin, is used to make between this installing component and the rotary part produce friction torque.In addition, in opening and closing device of the present invention, preferred described friction torque generation unit comprises: described installing component, and it has in the mode that can rotate and is bearing in the swivel bearing portion of the ring-type on the guide member and from the outstanding installation portion of the periphery of this swivel bearing portion; Torque pin, it is installed on the installation portion of described installing component in the mode that can rotate; Described rotary part, it is can be installed on this torque pin with the mode that described torque pin is rotated; The torque parts, it is rotating and the mode that can move along the axis direction of this torque pin is installed on the periphery of the described torque pin between this rotary part and the described installation portion with this torque pin; And elastomeric element, it is arranged between these torque parts and the rotary part, and with the torque parts by being pressed on the installation portion, so that produce friction torque between installation portion and the rotary part.
The present invention can also solve above-mentioned problem in the following manner, it is can be with respect to being opened and closed by the switching parts and can stopping in any opened and closed positions with respect to being opened and closed parts that opening and closing device will open and close the parts support, described opening and closing device is by constituting with lower member: rotatable parts, and it is fixed on described switching component side; Installing component, it is mounted to these rotatable parts can be rotated by the switching parts with respect to described; And the friction torque generation unit, it is arranged on described switching parts and described the switching between the parts, this friction torque generation unit is by constituting with lower member: guiding groove, its be arranged on described rotatable parts from the position that center of rotation is left; And friction element, it is embedded in this guiding groove in mode that can frictional movement.
At this moment, in the present invention, described friction element is by constituting with lower member: be installed in the described steady pin that is opened and closed component side; Be fixed on the arm member between this steady pin and the described installing component; And be installed in torque pin on this arm member.
In addition, in the present invention, be described friction element to be installed in the described torque pin that is opened and closed on the parts.
Have, the described torque pin among the present invention constitutes with the tube portion that is inlaid in this mount pin periphery by being installed in the described mount pin that is opened and closed component side again.
Have again, in the present invention, when being inlaid in described tube portion on the described mount pin, this one is fixed on the described mount pin.
The present invention also constitutes: when embedding described torque pin in the described guiding groove, and the both sides of this torque pin or the one-sided inboard that is crimped on described guiding groove.
The present invention constitutes: the touching stop element that is formed by recess or protuberance can also be set between described guiding groove and described torque pin.
The present invention constitutes: can also and be opened and closed between the parts at described switching parts stopper unit is set, this stopper unit make these switchings parts with respect to this opened and closed parts full-application position or full open position stop.
First framework with helmet body or portable set is described by the switching parts, is described switching parts with the guard shield or second framework.
And then the helmet of the present invention has above-mentioned opening and closing device of the present invention.
As mentioned above, according to the opening and closing device of the present invention and the helmet, and guide member leave opened and closed parts and opened and closed between the parts friction torque generation unit is set, this friction torque generation unit comprises: be installed in the installing component that opens and closes on the parts; And rotary part, it is installed in the free end side of this installing component and opens and closes parts with quilt in the mode that can rotate and engages, between described installing component and rotary part, produce friction torque, make that opening and closing parts is stopped in any angle that opens and closes with respect to opening and closing parts, therefore, even the friction torque that produces between installing component and rotary part is less, open and close parts and also can be become greatly making, open and close parts with respect to being stopped freely stopping mode by the switching parts so can make with small-sized and simple structure with respect to opening and closing the torque that is produced when parts with the guide member are the axle rotation.
Description of drawings
Fig. 1 illustrates to possess the figure of the helmet of the present invention with an example of the helmet of the opening and closing device of guard shield, and Fig. 1 (a) is a right side view, and Fig. 1 (b) is a left side view.
Fig. 2 illustrates the cutaway view of the helmet of the present invention with an example of the opening and closing device of guard shield.
Fig. 3 illustrates the exploded perspective view of the helmet of the present invention with an example of the opening and closing device of guard shield.
Fig. 4 illustrates the helmet of the present invention with the opening and closing device of guard shield and possess the figure of this helmet with an example of the helmet of the opening and closing device of guard shield, Fig. 4 (a) is for illustrating the side view of the helmet when being in closure state, Fig. 4 (b) is for illustrating the helmet when being in closure state with the figure of the state of the opening and closing device of guard shield, Fig. 4 (c) is for illustrating the side view of the helmet when mediating state, Fig. 4 (d) is for illustrating the helmet when mediating state with the figure of the state of the opening and closing device of guard shield, Fig. 4 (e) is for illustrating the side view of the helmet when being in open mode, and Fig. 4 (f) is for illustrating the helmet when being in open mode with the figure of the state of the opening and closing device of guard shield.
Fig. 5 illustrates the figure of the helmet of the present invention with an example of the major part of the opening and closing device of guard shield, and Fig. 5 (a) is from the observed stereogram of face side, and Fig. 5 (b) is from the observed stereogram of rear side, and Fig. 5 (c) is an exploded perspective view.
Fig. 6 is used for the cutaway view of the helmet shown in the key diagram 1 (b) with the opening and closing device of guard shield.
Fig. 7 illustrates the helmet of the present invention figure with another example of the opening and closing device of guard shield, is to have omitted cap and mounting screw and observed vertical view.
Fig. 8 illustrates the helmet shown in Figure 7 integrally-built cutaway view with the opening and closing device of guard shield.
Fig. 9 illustrates to possess the side view of the helmet of the present invention with the another embodiment of the helmet of the opening and closing device of guard shield, and Fig. 9 (A) is a right side view, and Fig. 9 (B) is a left side view.
Figure 10 illustrates the helmet shown in Figure 9 exploded perspective view with an example of the opening and closing device of guard shield.
Figure 11 illustrates the helmet shown in Figure 9 figure with an example of the opening and closing device of guard shield, and Figure 11 (A) is from the observed stereogram of face side, and Figure 11 (B) is a front view.
Figure 12 illustrates the helmet shown in Figure 9 figure with an example of the opening and closing device of guard shield, is from the observed exploded perspective view of rear side.
Figure 13 illustrates the helmet shown in Figure 9 figure with an example of the opening and closing device of guard shield, is from the observed stereogram of rear side.
Figure 14 is the stereogram of the arm member of opening and closing device shown in Figure 9.
Figure 15 illustrates the arm member of opening and closing device shown in Figure 9, and Figure 15 (A) is the vertical view of this arm member, and Figure 15 (B) is the front view of this arm member, and Figure 15 (C) is the side view of this arm member.
Figure 16 is the stereogram of the tube portion of opening and closing device shown in Figure 9.
Figure 17 is the stereogram of the mount pin of opening and closing device shown in Figure 9.
Figure 18 is the cutaway view of opening and closing device shown in Figure 9.
Figure 19 illustrates the helmet shown in Figure 9 with the opening and closing device of guard shield and possess the figure of this helmet with the right side view of the helmet of the opening and closing device of guard shield, Figure 19 (A) and Figure 19 (B) illustrate the figure that closes the state behind the guard shield, Figure 19 (C) and Figure 19 (D) are the figure that intermediateness is shown, and Figure 19 (E) and Figure 19 (F) illustrate the figure that opens the state behind the guard shield.
Figure 20 illustrates the exploded perspective view of the embodiments of the invention 4 described helmets with the opening and closing device of guard shield.
Figure 21 illustrates the figure of the embodiments of the invention 4 described helmets with the opening and closing device of guard shield, is from the observed exploded perspective view of rear side.
Figure 22 is the cutaway views of the embodiments of the invention 4 described helmets with the opening and closing device of guard shield.
The specific embodiment
Below, making the opening and closing device that guard shield opens and closes with respect to helmet body and using the helmet of this opening and closing device to be described in detail the helmet among the present invention.But, opening and closing device of the present invention is not limited to the opening and closing device of the guard shield of the helmet, as described later, headed by portable set, can be widely used as to make and open and close parts with respect to being opened and closed parts opening and closing mode that angle the stops opening and closing device open and close the time arbitrarily.
[embodiment 1]
Fig. 1～Fig. 4 is the figure of an example that opening and closing device of the present invention is shown and possesses the helmet of this opening and closing device.Fig. 5 illustrates the figure of the helmet of the present invention with the major part of the opening and closing device of guard shield.As Fig. 1～shown in Figure 4, opening and closing device of the present invention with guard shield 13 (switching parts) supporting of the helmet 10 for opening and closing with respect to helmet body 11 (being opened and closed parts).So long as in the mode that can open and close guard shield 13 is installed and gets final product, there is no particular determination as the helmet 10, for example, can list full helmet formula helmet of usefulness such as motor bike etc.This helmet 10 possesses: as the helmet body 11 that is opened and closed parts, this helmet body 11 has the peristome 12 at the front surface opening; And the guard shield 13 that peristome 12 is opened and closed.
Helmet body 11 for example is the helmet that is worn over head by the personnel on motor bike etc. of riding in, and for example the synthetic resin material by excellent in te pins of durability forms.Front surface in helmet body 11 is provided with peristome 12.Peristome 12 there is no particular determination, for example can be that the bottom from front surface is cut the roughly peristome of U shape towards top, also can be the fenestra that extends to both sides from front surface as shown in Figure 1 and Figure 4.Be fixed with mounting base 14 near 11 both sides of the helmet body the both ends of this peristome 12, described mounting base 14 is used for supporting helmet body 11 rotationally.Mounting base 14 forms tubular, for example uses bonding agent fastening under the state in being pressed into the installing hole 11a of helmet body 11.In addition, form though mounting base 14 is fixed on miscellaneous part on the helmet body 11, mounting base 14 also can be arranged on the helmet body 11 integratedly.Thereby the thread groove that is provided with in interior week at mounting base 14 forms installing hole 14a.The end that is positioned at helmet body 11 outsides at mounting base 14 is provided with flange part 14b.Be provided with the chimeric recess 14c roughly coaxial with installing hole 14a on the surface of this flange part 14b.The axle support 25a of for example plastic cap 25 with the chimeric state of this chimeric recess 14c under assemble.Central portion at cap 25 is provided with through hole 25b, and by via this through hole 25b mounting screw 26 grades being screwed among the installing hole 14a of mounting base 14, thereby cap 25 is mounted.And, mounting base 14 the method on the helmet body 11 of being fastened on is not limited to the method for embodiment, also can use nut etc. or use other known fastening method.Have again, as the method that cap 25 is fastened on the mounting base 14, except the method for embodiment, also can be from the mounting base 14 side-prominent external screw threads that are provided with, and make the internal screw-thread screw that is arranged on the cap 25 on external screw thread.Have, if chimeric recess 14c is set, then cap 25 becomes firmly with respect to the installment state of mounting base 14 again, but also can omit this chimeric recess 14c.
Be provided with columned engaging unit 15 near the mounting base 14 of helmet body 11 left surfaces and on the helmet body 11 than mounting base 14 more forward face side.This engaging unit 15 can be arranged on the helmet body 11 integratedly, also can be provided with by the mode that miscellaneous part is installed on the helmet body 11 such as selling.And, be formed with the stair-stepping guard shield portion 16 of taking a seat in lower edge of the peristome 12 of the left surface of helmet body 11 etc., thereby when utilizing guard shield 13 to cover peristome 12, the bottom of guard shield 13 is landed in this guard shield and takes a seat in the portion 16.The part of portion 16 is concavity ground depression formation depressed part 16a towards the below thereby this guard shield is taken a seat.Guard shield 13 with the opposed bottom of this depressed part 16a on be provided with the roughly guard shield operating sheet 13a of semiellipse shape, thereby can easily open and close the guard shield 13 that has covered peristome 12.
As long as guard shield 13 can open and close peristome 12, there is no particular determination, for example the synthetic resin material by transparent and excellent in te pins of durability forms.The both ends that this guard shield 13 forms this guard shield 13 when covering peristome 12 cover the such curved shape of mounting base 14 on helmet body 11 both sides.In the end in the left side of guard shield 13 and with mounting base 14 and engage 15 opposed positions, unit and be provided with embedded hole 17.Embedded hole 17 for example form by with mounting base 14 roughly the front face side of the rounded portions 17a of the circle on same axis and this rounded portions 17a periphery be the shape that the outstanding 17b of fan portion of fan constitutes.Be equipped with the opening and closing device 1 of the helmet with guard shield in this embedded hole 17, the left end of guard shield 13 is supported on the helmet body 11 in the mode that can rotate via the opening and closing device 1 of this helmet with guard shield.And, the right-hand end of guard shield 13 and with mounting base 14 opposed positions on also be provided with through hole (not shown), by this through hole of guard shield 13 being aimed at the mounting base of the right side sidepiece of helmet body 11, and mounting screw 26 is screwed among the installing hole 14a of mounting base 14 via cap 25, thus, cap 25 is as shaft supporting part performance function, and the right-hand end of guard shield 13 can be supported on the helmet body 11 rotatably.In addition, also can packing ring etc. all be set in the periphery of this mounting screw 26 and the front and back of guard shield 13 both sides.Thus, the both ends of guard shield 13 are supported to and can rotate with respect to helmet body 11, can utilize guard shield 13 to cover the peristome 12 of helmet body 11 front surfaces, thereby and can begin to make guard shield 13 to open peristome 12 from the state that utilizes guard shield 13 to cover peristome 12 with respect to helmet body 11 rotations.In addition, the helmet only is arranged on the left side sidepiece of helmet body 11 with the opening and closing device 1 of guard shield, but is not limited to this, also can only be arranged on the right side of helmet body 11, also can be arranged on the both sides of helmet body 11.
The helmet with the opening and closing device 1 of guard shield with the left side sidepiece supporting of guard shield 13 for opening and closing with respect to helmet body 11, and and the helmet body 11 left of guide member 2 and guard shield 13 between be provided with friction torque generation unit 3.Guide member 2 for example forms has the cylindrical shape that is the two-stage shape as the outer surface of the rotation section 2a of minor diameter part and large-diameter portion 2b.Interior all diameters of rotation section 2a form with the outer circumference diameter of the axle support 25a of cap 25 roughly the same.The peripheral shape of rotation section 2a becomes circle.Interior all diameters of large-diameter portion 2b form with the outer circumference diameter of the flange part 14b of mounting base 14 roughly the same, guide member 2 is entrenched on the flange part 14b of mounting base 14, and cap 25 is entrenched on this guide member 2, under this state, carries out screw threads for fastening with mounting screw 26.In addition, the periphery of friction torque generation unit 3 sides of the large-diameter portion 2b of guide member 2 be provided with by linearity cut and the line part 2c that forms.Friction torque generation unit 3 is arranged on this line part 2c periphery.
Especially, as shown in Figure 5, friction torque generation unit 3 possesses: be installed in the installing component 4 on the guard shield 13; Rotary part 5, it is installed into and can rotates with respect to this installing component 4, and engages with helmet body 11; And the elastomeric element 6 that is used to make generation friction torque between installing component 4 and the rotary part 5.
Installing component 4 is installed with the state in the embedded hole 17 that is embedded in guard shield 13.Installing component 4 is the shape with embedded hole 17 tablings of guard shield 13, promptly by the swivel bearing portion 41 of ring-type be the outstanding installation portion 42 of fan from the periphery of this swivel bearing portion 41 and constitute.That is, installing component 4 forms with guard shield 13 and moves integratedly.The external diameter of swivel bearing portion 41 form can be chimeric with the rounded portions 17a of embedded hole 17 diameter, and its internal diameter forms the diameter bigger slightly than the external diameter of rotation section 2a, thereby can be installed in the periphery of the rotation section 2a of guide member 2 rotatably.In addition, swivel bearing portion 41 also can rivet by the rotation section 2a to guide member 2 and become one with guide member 2.After in the embedded hole 17 that installing component 4 is entrenched in guard shield 13, installing, the rotation section 2a of guide member 2 is run through in the swivel bearing portion 41 that is inserted in the installing component 4 in this guard shield 13, thereby guard shield 13 is supported to and can opens and closes with respect to helmet body 11.
Installation portion 42 is entrenched among the 17b of fan portion of embedded hole 17, and the radical length of installation portion 42 forms than the length short slightly with engaging unit 15 opposed parts.In addition, the both ends of installation portion 42 are bent into approximate right angle towards helmet body 11 sides, and then form the chimeric installation sheet 42a that carries out that face contacts etc. with the both ends of the 17b of fan portion of embedded hole 17.Substantial middle portion in the circular arc direction of installation portion 42 is provided with for example circular through hole 43.Torque pin 7 is inserted in this through hole 43.Torque pin 7 for example is torque pin 71 that has on the diameter head bigger than this through hole 43 etc.
Torque pin 71 is inserted and is assemblied in the through hole 43 of installation portion 42 towards helmet body 11 directions.The position corresponding with through hole 43 of this torque pin 71 forms circular rounded portions 71a, and cuts the roughly non-round portion 71b of Japanese copper coin shapes in ancient times (roughly ellipticity) that forms from this rounded portions 71a up to two relative position almost parallels ground that leading section all forms circle.Rotary part 5 is installed on the non-round portion 71b of this torque pin 71.
On rotary part 5, be provided with the roughly non-circular through hole 53 of Japan ancient times copper coin shapes (roughly ellipticity) of the non-round portion 71b of confession torque pin 71 with the chimerism insertion.The non-round portion 71b of torque pin 71 is inserted in this non-circular through hole 53 with chimerism, for example by riveting from the leading section of the outstanding torque pin 71 of rotary part 5, make rotary part 5 to be installed on the torque pin 71 with torque pin 71 rotations and the mode that can move along the axis direction of torque pin 71 to carrying out this insertion.As Fig. 2～shown in Figure 5, on rotary part 5, be provided with for the engaging recessed part 51 that engages unit 15 engagings of helmet body 11.This engaging recessed part 51 for example forms roughly U font.By making engaging recessed part 51 like this and engage unit 15 engaging, when the guide member 2 that makes guard shield 13 with helmet body 11 serve as an axle when being rotated, rotary part 5 rotates towards the direction different with this direction of rotation together with torque pin 71.At this moment, because the clamped position of the engaging recessed part 51 of engaging unit 15 and rotary part 5 changes towards bottom side from the front of engaging recessed part 51, therefore the friction torque of friction torque unit changes, when the action that just begins to open guard shield 13 and to close guard shield 13 closes to an end, can feel lighter when the middle opened and closed positions than guard shield 13.
Preferred this opening and closing device 1 is provided with rotating range limiting unit 9, is limited in the rotating range with this guard shield 13 between the open mode of the closure state that utilizes guard shield 13 to cover peristome 12 and unlimited peristome 12.This rotating range limiting unit 9 there is no particular restriction, for example can by be arranged on guard shield on the helmet body 11 take a seat portion 16 and when being in open mode the rotary part 5 and the chimeric installation sheet 42a of mutual butt constitute.Certainly, rotating range limiting unit 9 also can be made of miscellaneous part etc.In addition, when the guide member 2 that makes guard shield 13 with helmet body 11 is the axle rotation, rotary part 5 rotates towards the direction different with this direction of rotation together with torque pin 71, be bearing on this torque pin 71 in the mode that can rotate but also torque pin 71 can be fixed on the installing component 4 and rotary part 5, thereby when the guide member 2 that makes guard shield 13 with helmet body 11 was the axle rotation, rotary part 5 served as that axle is towards the direction rotation different with the direction of rotation of guard shield 13 with torque pin 71.This opening and closing device 1 also is provided with elastomeric element 6, and described elastomeric element 6 is used to make between rotary part 5 and the installing component 4 and produces friction torque, thereby keeps state that guard shield 13 is stopped at an arbitrary position with respect to helmet body 11.
Producing the state of friction torque to keep guard shield 13 is stopped at an arbitrary position with respect to helmet body 11 between rotary part 5 and the installation portion 42 as long as elastomeric element 6 can make, can be any parts, and the configuration position also there is no particular restriction.As elastomeric element 6, particularly there is no particular determination, for example can be disk spring, compression spring etc., be preferably spring washer 61 etc.This spring washer 61 for example is installed between rotary part 5 and the installation portion 42 around the axis of torque pin 71.Under the situation that installs spring washer 61 by this way, between spring washer 61 and installation portion 42, be provided as the torque packing ring 8 of torque production part around the axis of torque pin 71.The through hole of torque packing ring 8 forms the roughly non-circular through hole 8a of Japan ancient times copper coin shapes (roughly ellipticity) of the non-round portion 71b of confession torque pin 71 with the chimerism insertion.That is, torque packing ring 8 is can being installed on the torque pin 71 with torque pin 71 rotation and the mode that can move along the axis direction of torque pin 71, and the active force that this torque packing ring 8 is subjected to spring washer 61 is pressed against on the installation portion 42.In addition, though spring washer 61 has been configured between rotary part 5 and the installing component 4, but be not limited to this, for example also spring washer 61 can be configured in from the end side of the outstanding torque pin 71 of rotary part 5, between rotary part 5 and installation portion 42, produce friction torque thereby make rotary part 5 be pressed against on the installation portion 42.
Fig. 6 illustrates an example of the opening and closing device that the guard shield of helmet left side is opened and closed, with reference to the accompanying drawings, the opening and closing device 30 of this guard shield is made of the mounting base 31 of the left side that is installed in helmet body 11 in the identical mode in mounting base 14 axle center that illustrated with the front and the cap 33 that utilizes mounting screw 32 to be installed on this mounting base 31, utilize mounting base 31 flange part 31a periphery and be arranged on and be with 18 supportings of stair-stepping installing hole for rotating on the side end that axle support 33a on the cap 33 will be arranged on guard shield 13.In addition, installing hole 18 also can be with ladder, and the parts of this installing hole 18 of axle supporting also can not be the flange part 31a of mounting base 31 and axle support 33a both sides but a side wherein.Have, the structure of the structure of mounting base 31 and cap 33 and both installation methods etc. can be followed the variant embodiment that the front has illustrated again.
Next, the helmet of the present invention opening and closing device 1 of guard shield and the effect of the helmet 10 are described.Because the opening and closing device 30 of guard shield 13 does not have special feature therefore to omit its explanation.The opening and closing device 30 of this guard shield 13 moves and brings into play function to carry out on-off action with respect to 11 pairs of guard shields of helmet body 13 with the helmet with the opening and closing device 1 of guard shield.Under the closure state that guard shield 13 is closed, the guard shield that the bottom of guard shield 13 is landed in helmet body 11 is taken a seat in the portion 16, thereby peristome 12 is closed (with reference to Fig. 1 and Fig. 4 (a)) by guard shield 13.At this moment, the active force that torque packing ring 8 is subjected to spring washer 61 is pressed against on the installation portion 42 of installing component 4, thereby produces friction torque between installing component 4 and rotary part 5, so guard shield 13 is maintained at the closure state that covers peristome 12.In addition, in order to keep this closure state more reliably, also locking mechanism can be set.
In the time will opening wide the peristome 12 of this helmet 10, under the state that fixes helmet body 11, for example finger is hooked on the guard shield operating sheet 13a of guard shield 13, perhaps catch this guard shield operating sheet 13a, and overcome by the friction torque that active force produced of spring washer 61 guard shield 13 is lifted towards the top with finger.Thus, guard shield 13 serves as that axle is rotated with guide member 2, and the front face side of guard shield 13 moves and makes peristome 12 little by little be opened wide from the below simultaneously.And then for example under the state of the intermediateness in the middle of guard shield 13 becomes open mode and closure state, when making mobile the stopping of guard shield 13, guard shield 13 just remains in the state that stops under this state.Promptly, if guard shield 13 is moved towards the top from closure state, then for example the left end of guard shield 13 serves as that axle rotates towards dextrorotation direction (clockwise) with guide member 2, simultaneously, rotary part 5 is accompanied by this rotation and rotates towards left hand direction with torque pin 71 with respect to the installation portion 42 of installing component 4.Because the active force that this rotary part 5 overcomes spring washer 61 is rotated, therefore when guard shield 13 is stopped the rotation, torque packing ring 8 is subjected to the active force of spring washer 61 and is pressed against on the installation portion 42 of installing component 4, thereby between installing component 4 and rotary part 5, produce friction torque, so guard shield 13 remains in the state that stops under intermediateness.With this, guard shield 13 is stopped at an arbitrary position freely to stop mode with respect to helmet body 11.
In addition, the kind and the number of the structure of friction torque generation unit and torque packing ring and elastomeric element are not limited to embodiment, and the position that produces friction torque also is not limited to embodiment.They can be converted to various known configurations.And, thereby also can use performance absorption function when guard shield is opened with respect to helmet body or when closed such as rubber.
When lifting guard shield 13 on further and making peristome 12 become the open mode of opening wide fully, go up the rotation of guard shield 13 is stopped thereby rotary part 5 is connected to the chimeric installation sheet 42a of installing component 4.At this moment, torque packing ring 8 is subjected to the active force of spring washer 61 and is pressed against on the installation portion 42 of installing component 4, thereby produces friction torque between installing component 4 and rotary part 5, so guard shield 13 remains on the open mode that peristome 12 opens wide.In addition, in order to keep this open mode more reliably, also locking mechanism can be set.
Then, in order to make peristome 12 return closure state from the open mode of opening wide fully, under the state that fixes helmet body 11, the guard shield operating sheet 13a that for example finger is hooked on guard shield 13 upward or with finger catches this guard shield operating sheet 13a, moves towards the below thereby guard shield 13 is overcome by the friction torque that active force produced of spring washer 61.So guard shield 13 serves as that axle is rotated with guide member 2, the front surface of guard shield 13 moves towards the below and makes the aperture position of peristome 12 move down gradually simultaneously.And then when peristome 12 was covered by guard shield 13, the bottom of guard shield 13 was landed in guard shield and takes a seat in the portion 16, and the rotation of guard shield 13 stops, and guard shield 13 is maintained at this halted state.
Like this, to be that friction torque generation unit 3 is arranged on the position of leaving with guide member 2 with the parts of guard shield 13 splits, and produce the friction torque that guard shield 13 is stopped with respect to helmet body 11, even therefore the friction torque that produces between installing component 4 that constitutes friction torque generation unit 3 and rotary part 5 is less, because the rotating torques that produces when making guard shield 13 serve as the axle rotation with respect to helmet body 11 with guide member 2 becomes big, even therefore small-sized opening and closing device also can keep the halted state of guard shield 13 with respect to helmet body 11 at an arbitrary position reliably.That is, guard shield 13 is stopped freely stopping mode with respect to helmet body 11.Owing to be small-sized like this opening and closing device, therefore also can be applied to guarantee the helmet 10 in less space fully.
[embodiment 2]
Fig. 7 and Fig. 8 illustrate the helmet of the present invention another embodiment with the opening and closing device of guard shield.Fig. 7 omits cap and mounting screw and overlooks observed figure, and Fig. 8 is whole cutaway view.With reference to the accompanying drawings, be fixed with mounting base 81 on the opening and closing device 80 of these embodiment 2 described helmets with guard shield, described mounting base 81 is used for guard shield 13 supportings for rotating with respect to helmet body 11.This mounting base 81 forms tubular, for example uses bonding agent fastening under the state in being pressed into the installing hole 11a of helmet body 11.In addition, form though mounting base 81 is fixed on miscellaneous part on the helmet body 11, mounting base 81 also can be arranged on the helmet body 11 integratedly.Thereby the thread groove that is provided with in interior week at mounting base 81 forms installing hole 81a.The end that is positioned at helmet body 11 outsides at mounting base 81 is provided with flange part 81b.Be provided with the chimeric recess 81c coaxial with installing hole 81a on the surface of this flange part 81b.The axle support 82a of for example plastic cap 82 with the chimeric state of this chimeric recess 81c under assemble.Central portion at cap 82 is provided with through hole 82b, and by via this through hole 82b mounting screw 83 grades being screwed among the installing hole 81a of mounting base 81, thereby cap 82 is mounted.And, mounting base 81 the method on the helmet body 11 of being fastened on is not limited to the method for embodiment, also can use nut etc. or use other known fastening method.Have again, as the method that cap 82 is fastened on the mounting base 81, except the method for embodiment, also can be from the mounting base 81 side-prominent external screw threads that are provided with, and make the internal screw-thread screw that is arranged on the cap 82 on external screw thread.Have, if after chimeric recess 81c is set, then cap 82 becomes firmly with respect to the installment state of mounting base 81 again, but also can omit this chimeric recess 81c.
Then, on the installation portion 84a of installing component 84, be provided with circular-arc guiding slotted hole 88, described installing component 84 is embedded in the embedded hole 17 that is provided with on guard shield 13, and is pivot with guide member 87 with the axle support 82a of cap 82, rotates along with the on-off action of guard shield 13.Guide member 87 can rotate on the axle support 82a that the earth's axis is bearing in cap 82.Can constitute the rotation jointly each other of installing component 84 and guide member 87, also can constitute rotation independently of one another.And,, but also can consider to omit this guide member 87 because the existence of this guide member 87 makes the spinning movement of installing component 84 become smooth and easy.Fixed arm 85 constitutes, the installing hole 85b that is arranged on its base portion 85a is run through insertion towards the flange part 81b of mounting base 81, and make engaging recessed part 85d and engage from the helmet body 11 outstanding engaging parts 91 that are provided with, engaging recessed part 85d is arranged on from the front end of the outstanding fixed part 85c that is provided with of base portion 85a, thereby fixed arm 85 is fixed on the helmet body 11 in non-rotary mode.
In addition, in the form of the above embodiments 1, friction torque generation unit 3 produces friction torque by rotary part 5 is rotated around the axis of torque pin 71, but in Fig. 7 and form shown in Figure 8, friction torque generation unit 86 constitutes between installing component 84 and fixed arm 85 and produces friction torque.That is, the outstanding torque pin 92 that is provided with on the fixed part 85c of fixed arm 85, this torque pin 92 run through and are inserted in the guiding slotted hole 88, carry out fastening by the side of exposing that fastening packing ring 89 is installed in torque pin 92, deviate from from guiding slotted hole 88 to prevent torque pin 92.This fastening packing ring 89 for example can be an E type circle, also can be to use other fastening circles with E type circle.And then, the elastomeric element 93 that between the installation portion 84a of the fixed part 85c of fixed arm and installing component 84, is provided with friction washer 94 and for example constitutes by spring washer, and torque pin runs through the central part that is inserted in friction washer 94 and elastomeric element 93.In addition, the quantity of this elastomeric element and friction washer, shape and kind there is no particular determination, can change to various known configurations.
The friction torque that produces though constitute as described above is certain, but owing to friction torque generation unit 86 has been arranged on the pivot that leaves installing component 84 that is left the position of the pivot of guard shield 13, therefore can play the action effect roughly the same with the embodiment 1 of front.Promptly, even the friction torque that produces between installing component 84 and fixed arm 85 is less, but also can tackle the rotating torques that is produced when guard shield 13 is opened and closed with respect to helmet body 11, even small-sized parts also can keep the halted state of guard shield 13 with respect to helmet body 11 at an arbitrary position reliably.
And, under the situation of above embodiment, the touching stop element that touching stops guard shield 13 takes place in the time of also can being arranged on guard shield 13 and carrying out on-off action.There is no particular determination as this touching stop element, for example, under the situation of embodiment 1, can be by with the rotation of friction washer torque-limiting pin, and torque pin and rotary part mutually the part of crimping recess and protuberance are set opposed to each other and constitute.Under the situation of embodiment 2, can be by opposed to each other recess being set on the crimping face of crimping mutually at guiding slotted hole 88 and friction washer 94 and protuberance constitutes.If constitute like this, according to the switching angle of guard shield 13 with respect to helmet body 11, recess and protuberance carry out chimeric and break away from, thereby the touching that can carry out guard shield 13 when obtaining the touching sense stops.
[embodiment 3]
Fig. 9 to Figure 19 illustrates the another embodiment of opening and closing device of the present invention.Fig. 9 is the side view that an example when on the guard shield that opening and closing device of the present invention is implemented on the helmet is shown, and Fig. 9 (A) is a right side view, and Fig. 9 (B) is a left side view.Figure 10 is the exploded perspective view that an example of opening and closing device of the present invention is shown.Figure 11 is the figure that an example of opening and closing device of the present invention is shown, and Figure 11 (A) is from the observed stereogram of face side, and Figure 11 (B) is a front view.Figure 12 is the figure that an example of opening and closing device of the present invention is shown, and is from the observed exploded perspective view of rear side.Figure 13 is the figure that an example of opening and closing device of the present invention is shown, and is from the observed stereogram of rear side.Figure 14 is the stereogram of arm member.Figure 15 (A) is the vertical view of arm member, and Figure 15 (B) is the front view of arm member, and Figure 15 (C) is the side view of arm member.Figure 16 is the stereogram of a portion.Figure 17 is the stereogram of mount pin.Figure 18 is the cutaway view of opening and closing device.
The structure of＜the helmet 〉
The guard shield of the helmet 100 of the present invention (switching parts) 103 are installed into and can open and close with respect to the helmet body that covers head (being opened and closed parts) 101 by opening and closing device 1A.The helmet 100 there is no particular determination so long as in the mode that can open and close guard shield 103 is installed and gets final product, and for example comprises what is called " half helmet formula " that so-called " full helmet (full face) formula " that cover mouth and lower jaw portion or mouth and lower jaw portion open wide etc.Below be that prerequisite describes with " full helmet formula ", still also can be applied to " half helmet formula " waits other helmets.
Guard shield 103 is supported to rotating by opening and closing device 1A at the right flank (being viewed as left surface from helmet-wearer) of helmet body 101.On the other hand, guard shield 103 is supported to rotating by the structure opening and closing device 120 different with opening and closing device 1A at the left surface (being viewed as right flank from helmet-wearer) of helmet body 101.In the present embodiment, wherein, as described later, opening and closing device 1A possesses the friction torque generation unit FC1 that produces predetermined rotary resistance, and has guard shield 103 is stopped and to its function that keeps in opened and closed positions arbitrarily.On the other hand, opening and closing device 120 only with respect to 101 supportings of helmet body guard shield 103, does not have the friction torque generation unit FC1 as opening and closing device 1A.Certainly, the installation site of opening and closing device 1A and opening and closing device 120 can left-right reversed, also can all dispose the opening and closing device 1A that possesses friction torque generation unit FC1 in both sides.Refer to opening and closing device 1A under the situation of opening and closing device mentioning in this manual.
Be formed with the peristome 102 in the visual field that is used to guarantee wearer at the front surface of helmet body 101, guard shield 103 assembles to cover this peristome 102 in the mode that can open and close via opening and closing device 1A.If put down this guard shield 103 then peristome 102 cresteds, if lift guard shield 103 then peristome 102 opens wide.Helmet body 101 is for example by the synthetic resin material of excellent in te pins of durability or absorb stacked multilayer such as impact material and constitute.And guard shield 103 is made of for example makrolon material of intensity and excellent in te pins of durability etc.Have again, where necessary, preferred ultraviolet ray blocking (anti-UV) or the anti-injury reason implemented, the processing of perhaps giving polarized light property etc.
As shown in figure 10, tighten the mounting base 104 that is useful on installation and supporting guard shield 103 in the side of helmet body 101.This mounting base 104 has flange part 104B and forms tubular, is formed with internal thread part 104A at the inner peripheral surface of this mounting base 104.The form that this mounting base 104 exposes on helmet body 101 with flange part 104B is pressed among the installing hole 101A, for example undertaken then by not shown bonding agent fastening, but also can be fixed on the internal thread part that in the installing hole 101A of helmet body 101 (with reference to Figure 18), is provided with at mounting base 104 arranged outside external thread parts and with its screw thread.In addition, mounting base 104 herein is made of the parts with helmet body 101 splits, forms one but according to circumstances also can constitute with helmet body 101.
The structure of＜opening and closing device 〉
Opening and closing device 1A is by constituting with lower member: overlook and be the roughly discoid rotatable parts 115 of key hole shape; Be used for these rotatable parts 115 are installed in installing component 116 on the helmet body 101 in the mode that can rotate; And particularly as shown in figure 18, be arranged on the locational friction torque generation unit FC1 that leaves from the rotating fulcrum of rotatable parts 115.The parts that rotatable parts 115 preferably use for example PBT resin (polybutene terephthalate) shaping to form, but be not limited to this.Be formed with section in the substantial middle of rotatable parts 115 with the form that connects these rotatable parts 115 and be the roughly through hole 115A of shower nozzle (Lotus mouth) shape.
In this embodiment 3, particularly as shown in figure 18, friction torque generation unit FC1 is by constituting with lower member: circular-arc guiding groove 115E, and it is arranged at along radial direction from rotatable parts on the position that 115 the center of rotation O with respect to installing component 116 leaves; Be fixed on the arm member 114 between steady pin 105 and the installing component 116; And as the torque pin 112 that is installed on this arm member 114 as an example of friction element.
On the other hand, possess the embedded hole 107 of keyhole shape on guard shield 103, described embedded hole 107 is formed by the embedded hole 107A of circle and fan-shaped embedded hole 107B.The flat shape of the shape of this embedded hole 107 and rotatable parts 115 just in time is corresponding relation (with reference to Figure 18), thereby rotatable parts 115 are embedded in this embedded hole 107, does not rock and can not produce.Promptly, when rotatable parts 115 are installed into can rotate with respect to helmet body 101 time by being installed in installing component 116 on the mounting base 104, rotatable parts 115 are chimeric with the embedded hole 107 that forms on guard shield 103, via packing ring 106 (in the lump with reference to Figure 18) is installed then.In addition, also can omit this packing ring 106.And, the external thread part 116A of installing component 116 be arranged under the state that the internal thread part 104A on the mounting base 104 screws togather, particularly as shown in figure 18, the 116B of the portion of taking a seat of this installing component 116 is connected on the flange part 104B of mounting base 104, excessively be screwed into thereby stop, between installing component 116 and rotatable parts 115, formed the clearance G of a little this moment.Therefore,, rotatable parts 115 are rotated swimmingly with respect to helmet body 101, not worry that in use rotatable parts 115 and installing component 116 deviate from because of lax by this clearance G.In addition, also can use the bonding agent of locking usefulness as required.And clearance G shows turgidly in order to understand easily on drawing.
Like this because rotatable parts 115 can freely rotate with respect to helmet body 101, thereby so rotatable parts 115 be entrenched in the embedded hole 107 of guard shield 103 and form as one with guard shield 103, this guard shield 103 also can be with respect to helmet body 101 rotations.
Then, also columned steady pin 105 is being installed than the mounting base 104 that is installed on the helmet body 101 near on the position of peristome 102 sides.This steady pin 105 is anchored on fastening method on the helmet body 101 can be adopted by being pressed in the installing hole that is provided with on helmet body 101 or screw thread is fixed on the method for internal thread part etc.When being installed to rotatable parts 115 on the helmet body 101 by installing component 116, make steady pin 105 with chimeric, and the axle support holes 114E axle that forms in the other end of arm member 114 is bearing on the installing component 116 at the installing hole 114A of an end of arm member 114 formation.
As Figure 11 to Figure 13, Figure 18 and shown in Figure 19, opening and closing device 1A is by constituting with lower member: rotatable parts 115; Installing component 116, it is mounted to these rotatable parts 115 can rotate with respect to helmet body 101; And be arranged on along radial direction from rotatable parts the locational friction torque generation unit FC1 that 115 rotating fulcrum leaves.This friction torque generation unit FC1 is by constituting with lower member: arm member 114, embedding in the installing hole 114A that the one end forms has steady pin 105, and the axle support holes 114E that forms in its other end is bearing on the installing component 116 with the rotatable parts 115 coaxial earth's axis; Torque pin 112, it is installed among the through hole 114F of the installing hole 114A side of being located at this arm member 114; And circular- arc guiding groove 115E and 115G, they are arranged on the rotatable parts 115 and are used to be pressed into torque pin 112.In addition, also can omit guiding groove 115G among this guiding groove 115E and the 115G (Figure 18).
As shown in figure 12, rotatable parts 115 are with overlooking of forming on guard shield 103 and are the shape corresponding shape of the embedded hole 107 of keyhole shape roughly.That is, erect by the circle of circle and the 115B of portion is set and fan-shaped fan-shapedly erects that the 115C of portion is set is integrally formed.Consequently, be formed with described circle and erect and the 115B of portion is set does not erect and the 115B of portion is set compares with being formed with described circle, exceed the amount of the thickness (thickness from the face side to the rear side) of opening and closing device 1A with the fan-shaped part that the 115C of portion is set that erects with the fan-shaped part that the 115C of portion is set of erecting.And, be formed with the part that exceeds described thickness, be formed with arm insertion section 115F from the inner peripheral surface periphery of through hole 115A towards rotatable parts 115 sides.This arm insertion section 115F is provided with the lateral opening of the 115C of portion towards rotatable parts 115 via fan-shaped erecting, and inserts opening 115D thereby form arm.And, fan-shaped erect to be provided with to be formed with on the 115C of portion with arm insert guiding groove 115E and the 115G that opening 115D and arm insertion section 115F are communicated with.The circular shape of this guiding groove 115E and 115G is a center of arc with the center of rotation O as the center of rotation of rotatable parts 115.
Arm member 114 is to insert opening 115D from the arm that forms in the side of rotatable parts 115 to be inserted into parts the rotatable parts 115 via arm insertion section 115F.Arm member 114 is the parts on the flat board of the heavy section 114B of an end with wall thickness thickening.On this heavy section 114B, be formed with for the installing hole 114A that erects steady pin 105 insertions that are arranged on the helmet body 101.And, be formed with rounded portions 114D at the other end of heavy section 114B, on this rounded portions 114D, be formed with a support holes 114E, this rounded portions 114D and heavy section 114B couple together by connecting portion 114C.
Rounded portions 114D is inserted opening 115D from arm to be inserted and is bearing on the installing component 116 via axle support holes 114E axle.
On connecting portion 114C, also be formed with the through hole 114F of path.On the inner peripheral surface of this through hole 114F along connecting the 114G of key portion that direction is formed with becomes " key " that bond share.Be pressed into torque pin 112 in this through hole 114F, this torque pin 112 is made of mount pin 112A and the 112B of tube portion that is embedded in around this mount pin 112A.And the 112B of tube portion is for example formed by the material forming of the frictional behavior excellence of POM (polyacetal resin) and so on.In addition, as shown in figure 16, the 112B of tube portion has formed the hollow structure with hollow bulb 112C, and is formed with keyway 112D along axis direction.This keyway 112D and the 114G of key portion that forms in the through hole 114F of arm member 114 are chimeric, thereby the 112B of tube portion is fixed to and can not rotates with respect to mount pin 112A.
In addition, the diameter of torque pin 112 forms bigger slightly than the width of guiding groove 115E and 115G.Consequently, torque pin 112 is crimped on the two sides of guiding groove 115E and 115G.That is, on the two sides of guiding groove 115E and 115G, can produce friction with torque pin 112.Owing to, when rotatable parts 115 are rotated, need corresponding torque in the existence of the friction that produces between this guiding groove 115E and the torque pin 112 and between guiding groove 115G and the torque pin 112.In addition, torque pin 112 also can constitute with guiding groove 115E and 115G in one-sided crimping.
In addition, the material of the 112B of tube portion by changing torque pin 112 and width and the material of diameter or appropriate change guiding groove 115E or 115G can be adjusted in the size of the friction of generation between the two.And in aforesaid way, torque pin 112 separately is made of mount pin 112A and the 112B of tube portion as minute body component, but also can be made of integratedly parts.Have again, also can constitute integratedly by parts with arm member 114.
And, also the shape (width) that can insert opening 115D and guiding groove 115E, 115G according to arm with rotatable parts 115 within the specific limits with respect to the slewing area restriction of installing component 116, to have backstop function as stopper unit.That is, in the present embodiment, the restriction of this slewing area can be directly as the slewing area of guard shield 103 with respect to helmet body 101.Certainly, be not limited to this, as described later, also can be between helmet body 101 and rotatable parts 115 or any limit rotation mechanism is set in addition in guard shield 103 sides.
The effect of＜the helmet and opening and closing device 〉
Then, on one side with reference to Figure 19 the effect of the opening and closing device 1A of the present invention and the helmet 100 is described on one side.In Figure 19, Figure 19 (A), Figure 19 (C) and Figure 19 (E) illustrate the helmet 100 integral body, and the part that Figure 19 (B), Figure 19 (D) and Figure 19 (F) focus on opening and closing device 1A illustrates.And Figure 19 (A) and Figure 19 (B) illustrate the figure that closes the closure state behind the guard shield 103, and Figure 19 (C) and Figure 19 (D) are the figure of open mode in the middle of illustrating, and Figure 19 (E) and Figure 19 (F) illustrate the figure that opens the full open mode behind the guard shield 103.In addition, for easy explanation, arbitrary figure has omitted a part of parts and has illustrated.
Under guard shield 103 pent states, guard shield 103 all covers the peristome 102 of helmet body 101.And torque pin 112 is arranged in the topmost (being the top at Figure 19 (B)) of guiding groove 115E and 115G.At this moment, the heavy section 114B of arm member 114 brings into play function as stopper unit, and this heavy section 114B is connected on the upper end 107C of fan-shaped embedded hole 107B, thereby has determined the closing position of guard shield 103.Have again, the bottom of guard shield 103 is connected on the helmet body 101, thereby performance is as the backstop function of stopper unit, also can insert the backstop function of bringing into play between the opening 115D as stopper unit, perhaps make torque pin 112 be connected to the upper end of guiding groove 115E and 115G with the backstop function of performance as stopper unit at arm member 114 and arm.
Shown in Figure 19 (C) and Figure 19 (D), under guard shield 103 mediated the situation of open mode (state between closed condition and the open mode), the heavy section 114B of arm member 114 was positioned at about centre of fan-shaped embedded hole 107B.Be conceived to torque pin 112 if change the visual angle, torque pin 112 is arranged in about centre (is approximately middle at Figure 19 (D)) of guiding groove 115E and 115G.
When guard shield 103 was in full open mode, the heavy section 114B of arm member 114 was connected on the bottom 107D of fan-shaped embedded hole 107B.Be conceived to torque pin 112 if change the visual angle, torque pin 112 is positioned at the below of guiding groove 115E and 115G.
In the present embodiment, as mentioned above, because rotatable parts 115 and guard shield 103 are chimeric and by integrated, so rotatable parts 115 rotate along with the on-off action of guard shield 103.On the other hand, arm member 114 does not rotate.That is, the on-off action by guard shield 103 relatively rotates rotatable parts 115 and arm member 114, but be that catch under the situation of rotational action at the center with helmet body 101, only rotatable parts 115 rotations and arm member 114 does not rotate.
And, no matter being under the arbitrary state in the closure state that guard shield 103 is closed, middle open mode and the full open mode, torque pin 112 is pressed into all the time in guiding groove 115E and 115G.And, be pressed into by this, make in case want to make torque pin 112 will produce frictional force by between with respect to guiding groove 115E and 115G action (wanting to make torque pin 112 to slide).That is, want guard shield 103 to be continued to remain on the power (rotary resistance) of this position with respect to helmet body 101 owing to existing this frictional force to produce.Particularly, under guard shield 103 closing state, in the time will opening guard shield 103, effect has wants the power that continues to close, under guard shield 103 mediates the situation of state, in the time will making guard shield 103 actions, effect has makes it continue to be positioned at the power of this intermediateness, under the opened state of guard shield 103, in the time will closing guard shield 103, effect has the power that will continue to open.In addition, for state that stays open guard shield 103 more reliably or the state of closing guard shield 103, also locking mechanism can be set in addition.
In order to open wide the peristome 102 of this helmet 100, (for example be worn under the state of head) under the state that fixes helmet body 101, for example finger is hooked on the guard shield 103 or catches guard shield 103, and the friction torque that overcomes friction torque generation unit FC1 is lifted guard shield 103 upward with finger.Thus, guard shield 103 is that rotate at center (promptly the center with the through hole 115A of formation on rotatable parts 115 is that center of rotation O is the center) with installation portion 116, thereby peristome 102 is little by little opened wide, and becomes full open mode, and peristome 102 is opened wide fully.And then for example stage of open mode stops when mobile guard shield 103 in the middle of guard shield 103 becomes, and guard shield 103 is maintained at halted state in this position.Under arbitrary middle open mode, has this maintenance function equally.That is, can be implemented in the hold mode of any open position, i.e. so-called " free halted state " by opening and closing device 1A.
And when guard shield 103 became full open mode with respect to helmet body 101, torque pin 112 was positioned at the foot of guiding groove 115E and 115G.At this moment, the heavy section 114B of arm member 114 is as the stop part performance function of stopper unit, and this heavy section 114B is connected on the bottom 107D of fan-shaped embedded hole 107B, thus the full open position of restriction guard shield 103.Herein, the upper end of guard shield 103 is connected on the helmet body 101, thereby performance is as the backstop function of stopper unit, as mentioned above, also can make arm member 114 and arm insert the backstop function of bringing into play between the opening 115D as stopper unit, perhaps make torque pin 112 be connected to the bottom side of guiding groove 115E and 115G with the backstop function of performance as stopper unit.
On the other hand, opposite with above-mentioned situation when closing guard shield 103, for example catch guard shield 103 that it is closed and get final product with finger.If the arbitrary intermediateness (centre position) at this dwell period is ended closing motion, the action of guard shield 103 stops constantly at this, and guard shield 103 is maintained at this position.
As described above, as the opening and closing device 1A of the embodiment 3 of an example of embodiments of the present invention is that described opening and closing device 1A comprises: the rotatable parts 115 that are fixed on guard shield 103 sides with the opening and closing device of guard shield 103 supportings for opening and closing with respect to helmet body 101; The arm member 114 that relatively rotates with respect to rotatable parts 115 along with the on-off action of guard shield 103; And the friction torque generation unit FC1 that produces predetermined friction torque along with the on-off action of guard shield 103, this friction torque generation unit FC1 has: circular-arc guiding groove 115E and the 115G that form on rotatable parts 115; And with this guiding groove 115E and the chimeric torque pin 112 of 115G, and, thereby adopt the enterprising line slip in two sides that torque pin 112 is crimped on guiding groove 115E and 115G to produce the structure of friction torque.By adopting this structure, can utilize compact opening and closing device 1A to produce bigger friction torque.That is, be crimped on the two sides at least of formed guiding groove 115E and 115G by making torque pin 112, thereby can guarantee that thereby bigger friction produces area and obtains enough rotary resistances, can keep guard shield 103 at an arbitrary position reliably.Especially because guiding groove 115E is formed on (being made of the parts with guard shield 103 splits) rotatable parts 115, therefore can freely select and torque pin 112 between the high material of coefficient of friction, can produce bigger rotary resistance.
In addition, for example except friction torque generation unit FC1, can also specially make the outer peripheral face of the heavy section 114B of arm member 114 be crimped on the inboard that is formed at the fan-shaped embedded hole 107B on the guard shield 103, thereby can utilize the friction that slip produced by this butt position.
In addition, in above-mentioned situation, the shape with guiding groove 115E and 115G forms " circular arc " as mentioned above, but, for example also can make guard shield 103 touch action by the touching stop element is set, described touching stop element forms protuberance or recess based on circular shape every predetermined angular.
And, if form an opening and closing device 1A with friction torque generation unit FC1 be set respectively in the two sides of helmet body 101, then can produce bigger rotary resistance by the combination of two opening and closing device 1A, therefore can more reliably guard shield 103 be remained on the desired opened and closed positions, and can constitute opening and closing device 1A monomer more compactly.
[embodiment 4]
Figure 20 to Figure 22 illustrates another embodiment of opening and closing device of the present invention.In drawing, Figure 20 is the exploded perspective view of these embodiment 4 described opening and closing devices.Figure 21 is the figure that embodiment 4 described opening and closing devices are shown, and is from the observed exploded perspective view of rear side.Figure 22 is the longitudinal section of embodiment 4 described opening and closing devices.
In this embodiment 4, adopt as friction torque generation unit FC2 directly to make the torque pin 155 that is installed on the helmet body 151 be pressed into structure among the guiding groove 152E, this guiding groove 152E is formed on the rotatable parts 152 that constitute opening and closing device 150.That is, omit embodiment 3 described steady pin 105 and arm members 114, can reduce structure member quantity, further pursue the compactedness and the cost degradation of device integral body.In addition, as the torque pin 112 of embodiment 3, can at random select to constitute the torque pin 155 of these embodiment 4 described opening and closing devices 150 with two parts.Have, the described component names of putting down in writing in Figure 20 to Figure 22 of other indication numbers is as described below, not explanation in order again.
Promptly, indication numbers 152A represents through hole, indication numbers 152B represents that circle erects the portion of setting, indication numbers 152C represents the fan-shaped portion of setting that erects, indication numbers 153 expression guard shields, indication numbers 154 expression mounting bases, indication numbers 154A represents internal thread part, indication numbers 154B represents flange part.In addition, indication numbers 151 expression helmet body, indication numbers 157 expression packing rings, indication numbers 158 expression embedded holes, indication numbers 158A represents the circular fit hole, indication numbers 158B represents fan-shaped embedded hole.Have again, indication numbers 156 expression installing components, indication numbers 156A represents external thread part, indication numbers 156B represents the portion of taking a seat.All has identical 26S Proteasome Structure and Function with the parts of the component names unanimity of embodiment 3.
Be appreciated that from above explanation opening and closing device of the present invention can also be used for the parts except the opening and closing device of the guard shield of the helmet.For example, the opening and closing device that can be used as first framework that is provided with operating portion (by opening and closing parts) of the small portable apparatus that makes pocket telephone, PDA and notebook computer and so on and be provided with second framework (switching parts) switching of display unit uses.
At this moment, for example constitute and to be installed in rotatable parts on first framework rotatably via installing component, and these rotatable parts are rotated with second framework, and embodiment 3 and embodiment 2 described friction torque generation units are set between the rotatable parts and first framework.
As described above in detail, the present invention is that the helmet body with the helmet that drives a car or use during motorcycle etc. is opened and closed parts, with the guard shield is to open and close parts, describe as the opening and closing device of the above-mentioned helmet, but in addition, can also be widely used in the bicycle use helmet, wait the various helmets headed by the helmet that uses at the construction field (site), and can be as the opening and closing device with the information terminal headed by pocket telephone or the PDA.

Claims (17)

1, a kind of opening and closing device, described opening and closing device will open and close parts carry for opening and closing with respect to being opened and closed parts, it is characterized in that,
This opening and closing device has: installing component, and it is installed into respect to described, and to be opened and closed parts be that the center rotates with described switching parts with the rotating shaft; Rotary part, it is installed in extending on the installation portion that is provided with from pivot towards radial direction of this installing component in the mode that can rotate, and is engaged by the switching parts with described; And be arranged on the described installation portion of described installing component and the friction torque generation unit between the described rotary part, when parts open and close described switching parts described switching parts are stopped with respect to described the switching freely to stop mode.
2, a kind of helmet, the both ends that the described helmet utilizes a pair of opening and closing device will open and close parts are mounted to and can open and close with respect to being opened and closed parts, it is characterized in that,
One side or the both sides of described a pair of opening and closing device have: rotary part, and it is engaged by the switching parts with described; The installing component that can rotate with described switching parts, this installing component is installed in this rotary part on its installation portion in the mode that can rotate, and makes this rotary part be installed in described the switching on the parts in the position of leaving from this installation portion; And be arranged on friction torque generation unit between described rotary part and the described installation portion, when parts open and close described switching parts described switching parts are stopped with respect to described the switching freely to stop mode.
3, a kind of opening and closing device, described opening and closing device will open and close the both ends supporting of parts for opening and closing with respect to being opened and closed parts, it is characterized in that,
The opening and closing device of at least one end side that is arranged on described switching parts is by constituting with lower member: cap, and it has a support and is fastened to described the switching on the parts; Installing component, it is bearing on the described axle support of this cap and is installed into and can rotates with described switching parts; Fixed arm, itself and this installing component is installed coaxially, and is fixed on described the switching on the parts; Torque pin, it is installed in from the position that the mounting center of this fixed arm is left, and runs through and be inserted in the circular-arc guiding slotted hole, described guiding slotted hole be arranged on described installing component from the position that pivot leaves; And friction torque generation unit, it is made of friction washer and elastomeric element, described friction washer and elastomeric element are arranged between described installing component and the described fixed arm, and described torque pin runs through the central part that is inserted in described friction washer and described elastomeric element.
4, opening and closing device according to claim 1 is characterized in that,
In that described installing component is mounted to can be with respect to the described parts that opened and closed when rotating, this installing component is installed on the support via guide member, outstanding being arranged on the cap of described axle support, described cap is fixed on the mounting base via mounting screw, and described mounting base is installed in described the switching on the parts.
5, opening and closing device according to claim 1 is characterized in that,
Make described rotary part and the described parts that opened and closed when engage, engaging recessed part is being set, and opened and closed the fastening unit that setting engages with described engaging recessed part on the parts described at the front end of this rotary part.
6, opening and closing device according to claim 1 is characterized in that,
Described friction torque generation unit is by constituting with lower member: torque pin, and it is installed in described rotary part on the installation portion of described installing component in the mode that can rotate; And being folded in friction washer and elastomeric element between described installation portion and the described rotary part, this torque pin runs through the central part that is inserted in described friction washer and elastomeric element along axis direction.
7, a kind of opening and closing device, described opening and closing device opens and closes parts with respect to being opened and closed and support described switching parts by the switching parts in the mode that any opened and closed positions stops making, it is characterized in that,
Described opening and closing device is by constituting with lower member:
Rotatable parts, it is fixed on described switching component side;
Installing component, it is mounted to these rotatable parts can be rotated by the switching parts with respect to described; And
The friction torque generation unit, it is arranged on described switching parts and described the switching between the parts,
This friction torque generation unit is by constituting with lower member:
Guiding groove, its be arranged on described rotatable parts from the position that center of rotation is left; And
Friction element, it is embedded in this guiding groove in mode that can frictional movement.
8, opening and closing device according to claim 7 is characterized in that,
Described friction element is by constituting with lower member: be installed in the described steady pin that is opened and closed component side; Be fixed on the arm member between this steady pin and the described installing component; And be installed in torque pin on this arm member.
9, opening and closing device according to claim 7 is characterized in that,
To be installed in the described torque pin that is opened and closed component side is described friction element.
10, opening and closing device according to claim 8 is characterized in that,
Described torque pin constitutes by being installed in the described tube portion that is opened and closed the mount pin of component side and be inlaid on the periphery of this mount pin.
11, opening and closing device according to claim 10 is characterized in that,
When being inlaid in described tube portion on the described mount pin, this one is fixed on the described mount pin.
12, opening and closing device according to claim 8 is characterized in that,
When embedding described torque pin in the described guiding groove, the both sides of this torque pin or the one-sided inboard that is crimped on described guiding groove.
13, opening and closing device according to claim 8 is characterized in that,
Between described guiding groove and described torque pin, be provided with the touching stop element that forms by recess or protuberance.
14, opening and closing device according to claim 1 is characterized in that,
At described switching parts with between by the switching parts stopper unit is set, this stopper unit makes described switching parts stop at full-application position or full open position with respect to the described parts that opened and closed.
15, opening and closing device according to claim 7 is characterized in that,
Described is helmet body by opening and closing parts, and described switching parts are guard shields.
16, opening and closing device according to claim 7 is characterized in that,
Described is first frameworks of portable set by opening and closing parts, and described switching parts are second frameworks of portable set.
17, a kind of helmet is characterized in that,
The described helmet is the described parts that opened and closed with helmet body, is described switching parts with guard shield, and the described helmet has each the described opening and closing device in the claim 1 to 16.
CN2009101414836A 2008-05-21 2009-05-20 Opening/closing device and helmet having the same Active CN101584509B (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2008133240 2008-05-21
JP2008-133240 2008-05-21
JP2008133240A JP2009280929A (en) 2008-05-21 2008-05-21 Tool for opening and closing shield for helmet, and helmet
JP2008265725 2008-10-14
JP2008-265725 2008-10-14
JP2008265725A JP5534663B2 (en) 2008-10-14 2008-10-14 Opening / closing device and helmet equipped with the opening / closing device

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CN101584509A true CN101584509A (en) 2009-11-25
CN101584509B CN101584509B (en) 2011-09-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102894518A (en) * 2011-07-28 2013-01-30 株式会社昭荣 Visor attachment mechanism in helmet

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3459377A1 (en) * 2017-09-22 2019-03-27 3M Innovative Properties Company Welding helmet

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003766A1 (en) * 1986-11-17 1988-06-02 Foehl Artur Protective helmet with pivoting and engagable vizor, in particular for motorcyclists
US5005221A (en) * 1989-08-28 1991-04-09 Chen Lee S Motorcycle helmet wind visor adjustment device
CN1253756A (en) * 1998-11-13 2000-05-24 洪完基 Protective cover connector for helmet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102894518A (en) * 2011-07-28 2013-01-30 株式会社昭荣 Visor attachment mechanism in helmet
CN102894518B (en) * 2011-07-28 2016-01-06 株式会社昭荣 Visor attachment mechanism in the helmet

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JP2009280929A (en) 2009-12-03

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