CN103832392A - Reel, safety device, transportation equipment and mandrel - Google Patents
Reel, safety device, transportation equipment and mandrel Download PDFInfo
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- CN103832392A CN103832392A CN201410069683.6A CN201410069683A CN103832392A CN 103832392 A CN103832392 A CN 103832392A CN 201410069683 A CN201410069683 A CN 201410069683A CN 103832392 A CN103832392 A CN 103832392A
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Abstract
The invention discloses a reel, a safety device, transportation equipment and a mandrel. The reel is applied to a safety belt retractor. The retractor comprises a retractor frame, torsion rods and the reel. The retractor frame comprises two opposite side walls. The torsion rods are rod-shaped, and circumferential outer teeth are arranged at the two ends and the middles. The reel comprises the mandrel which is used for winding of a braid, and a through hole is formed in the reel axially. The mandrel comprises a mandrel body and pedal wheels arranged on at least one end portion of the mandrel body and coaxial with the mandrel body. The pedal wheels are gears with external gears arranged circumferentially, and the external contours of the external gears are within the periphery of the mandrel body. The pedal wheels of the reel can drive the reel to rotate towards a preset direction under the action of thrust. The safety device uses the safety belt reel. The transportation equipment uses the safety device. The mandrel is applied to the reel.
Description
Technical field
The present invention relates to Seatbelt retractor field, be specifically related to a kind of spool.The present invention relates to a kind of safety device simultaneously, adopts above-mentioned spool.The invention still further relates to a kind of transportation device, adopt above-mentioned safety device.The present invention also provides a kind of mandrel, is applied to above-mentioned spool.
Background technology
Safety strap is the important passive security parts that are applied on automobile.In the time of collision happens, safety strap can be protected user, the secondary injury when it being avoided or alleviating collision.
What be designed at first is applied to the standard body-restraining seat belt on automotive seat, and it only comprises lockable mechanism and the ribbon for regular user's (human body).In the time of collision happens, lockable mechanism locking, ribbon no longer outwards stretches, thereby user is bundled on automotive seat.But because impact moment velocity variations is very fast, it is very short that speed at time of impact changes the momentum change time causing, makes ribbon act on user's power with it very large, for example, can reach 8 to 10kN.Can cause the even more serious injury that fractures of user's rib.
Based on above-mentioned reason; standard model safety strap is further improved; limit type safety strap has been proposed; in impact moment; can act on the power on human body by certain limiter mechanics limit ribbon; can not cause human body to be subject to the injury of ribbon itself, to reach the object of protecting to greatest extent user.As can be seen here, taking-up device is the important mechanical device of safety strap.
In order to improve the performance of safety strap, people, around the taking-up device of safety strap, have done a large amount of research.
The torsion bar for Webbing retractor providing as the patent of invention of application number 201210309026.5 and Webbing retractor, safety strap assembly; Please refer to Fig. 1, it is the structure drawing of device of a kind of safety device taking-up device; This safety strap has pre-tightening function, and this taking-up device comprises spool 1 and framework 5.Wherein, described framework 5 comprises relative two side, is provided with the circular port with internal tooth on this sidewall.Described spool 1 comprises the mandrel 7 for being wound around ribbon and is arranged at the end cap 9 at mandrel two ends.On described end cap 9, be provided with framework on the external tooth that matches of internal tooth; Rotatable the floating of described spool 1 is arranged on described framework 5, and two end cap 9 is arranged at respectively in the circular port of described framework 5, under non-lockup state, external tooth on end cap 9 does not engage with the internal tooth of described circular port, spool 1 can rotate in described circular port, to be wound around ribbon or to discharge ribbon.
In addition, in order to make the spool of described taking-up device before locking, can rotate to the direction of tightening up belt-strap, so that the displacement of restriction user on seat, described taking-up device is provided with a kind of device that plays pre-tightening effect, and this device comprises gas generator, guide pipe and bullet; Described bullet is arranged at described guide pipe inside; Described guide pipe comprises the two sections of straight portion and the circular-arc part that are connected, and the opening of its straight portion is admission port, and the opening that is circular-arc part is outlet; Described two sections of straight portion are along the frame arrangement of described taking-up device, and described circular-arc part is along the circumferential distribution of described mandrel.Described gas generator is connected with the opening of the straight portion of described guide pipe.
The used time is done in described taking-up device performance pre-tightening, and described gas generator, by the high pressure gas that produce, ejects the bullet in above-mentioned guide pipe, utilizes the kinetic energy of this bullet that described mandrel is rotated to the direction of the belt-strap that tightens up described taking-up device.Described taking-up device can in a short period of time, tighten up belt-strap, and this is by the effect that makes safety with pretension; Afterwards, the mandrel of described taking-up device, by locked, is fixed the position of safety strap.
Therefore, the spool of described taking-up device needs a kind of device of thrust of bearing bullet.
Summary of the invention
The invention provides a kind of spool, can under the effect of thrust, drive spool to rotate to default direction.
The invention provides a kind of spool, be applied to the taking-up device of safety strap, described taking-up device comprises taking-up device framework, torsion bar and described spool; Described taking-up device framework comprises two relative sidewalls; In described two side, opposite position is provided with the circular port with internal tooth; It is shaft-like that torsion bar is, and at its both ends and middle part, circumferential external tooth is all set; Described spool comprises and is provided with through hole along axis and for being wound around the mandrel of ribbon, and separable and be arranged at respectively two end caps at mandrel two ends; Described end cap is oblate bar shape; Each end cap is provided with along periphery the external tooth that matches with the internal tooth profile of tooth of described taking-up device frame side wall, and the center towards the inner end surface of mandrel arranges the center shrinkage pool with internal tooth, the internal tooth profile of tooth of described center shrinkage pool and described torsion bar wherein the external tooth profile of tooth of an end match; The middle section position of the through hole of position, described mandrel axis is provided with the internal tooth matching with described torsion bar middle part external tooth; Described mandrel comprises mandrel body and is arranged at least one end of described mandrel body and the pedal wheel coaxial with this mandrel body; Described pedal wheel is for being circumferentially with the gear of external gear, and the gabarit of described external gear does not exceed outside described mandrel body outer peripheral face.
Optionally, to prolong face perpendicular to axial direction be two parts by subdivision for described each pedal wheel: Part I and Part II; Described two parts are axially separating fixing distance, and are connected as a single entity in the region near centre, and described two parts have identical tooth pitch and profile of tooth, and the corresponding setting of tooth.
Optionally, adjacent two between cog of described pedal wheel have level and smooth arcuate structure.
Optionally, described pedal wheel and described this body by integral forming of mandrel.
Optionally, be provided with pedal wheel at the two ends of described mandrel body.
Optionally, in mandrel both sides, every side at least arranges two force limit pins; This force limit pin is fixed on the end face of described mandrel, and insertion end covers the pin-and-hole arranging should force limit pin position, or this force limit pin is fixed on described end cap, and inserts on end face of mandrel the pin-and-hole to should force limit pin position arranging.
Optionally, the two force limit pin setting position differences at described mandrel two ends, can prevent left and right end cap loading error, and guarantee after assembling the external tooth of the two end cap fixing angle that staggers.
Optionally, be provided with boss in the end face side center towards mandrel of described end cap, described center shrinkage pool is arranged on described boss; End face side relevant position at described mandrel is provided with the space of dodging that holds described boss.
Optionally, in described two end cap, in the center shrinkage pool of one of them end cap, be provided with mistake proofing hypodontia.
The present invention provides a kind of safety device in addition, adopts above-mentioned spool.
The present invention also provides a kind of transportation device simultaneously, adopts above-mentioned safety device.
The present invention provides a kind of mandrel simultaneously, is applied to above-mentioned spool; Described mandrel comprises: mandrel body and be arranged at least one end of described mandrel body and with the coaxial pedal of this mandrel body wheel; Described pedal wheel is for being circumferentially with the gear of external gear, and the gabarit of described external gear does not exceed outside described mandrel body outer peripheral face; The middle section position of the through hole of position, described mandrel axis is provided with the internal tooth matching with described torsion bar middle part external tooth; In mandrel both sides, every side at least arranges two force limit pins; This two force limit pins setting position difference.
Compared with prior art, the present invention has the following advantages: this spool adopts a kind of wheel of the pedal with external tooth, and the gabarit of described external gear does not exceed outside described mandrel body outer peripheral face; This pedal wheel is fixedly installed on mandrel one end of described spool, and can be under the effect of thrust, drives described spool to rotate to predefined direction, can play the effect of tightening up belt-strap.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, accompanying drawing is together with embodiments of the present invention for explaining the present invention, and form the part of specification sheets, apparently, the accompanying drawing the following describes is only some embodiment that record in the present invention, be used to provide a further understanding of the present invention, be not construed as limiting the invention, for those of ordinary skills, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structure drawing of device of a kind of safety device taking-up device;
Fig. 2 is the structure drawing of device of taking-up device;
Fig. 3 is the first device constructional drawing of spool;
Fig. 4 is the second structure drawing of device of spool;
Fig. 5 is the 3rd structure drawing of device of spool;
Fig. 6 is the structure drawing of device of pretension pipe and gas generator tank body;
Fig. 7 is the structure drawing of device of taking-up device framework;
Fig. 8 is the first device constructional drawing of base;
Fig. 9 is the second structure drawing of device of base;
Wherein, 1--spool, 5--mandrel, 7--framework, 9--end cap, 10--backboard, 11--Part I, 12--Part II, 13--the first side plate, 14--the second side plate, 15--spool, 16--mandrel body, 17--pedal wheel, 18--center shrinkage pool, 19--mandrel, 20--torsion bar, 21--framework, 23--end cap, 25--force limit pin, 27--gas generator, 29--pretension pipe, 31--bend pipe, 32--clamp spring hole, 33--pressure limiting mouth, 34--guide piece, 35--U type part, 37--fixed plate, 39--screw, 41--tank body, 43--arcs of recesses structure, 45--lip, 47--cavity, 61--base, 62--the first side wall, 63--fixes ear, 64--the second sidewall, 65--sheet projection, 66--spill curved guiding surface, 67--bullet buffer structure, 68-bullet guide frame, 69--diapire, 71--projection, 81--trailing arm, 83--clip, 85--hold down groove, 87--bracket, 89--protuberance, 91--arcs of recesses space, 93--air extractor vent, 95--slider support face, 97--lever positioning groove.
The specific embodiment
A lot of details are set forth in the following description so that fully understand the present invention.But the present invention can implement to be much different from alternate manner described here, and those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that, and therefore the present invention is not subject to the restriction of following public concrete enforcement.
Below in conjunction with accompanying drawing, embodiments of the present invention are elaborated.
The invention provides a kind of spool, is below specific embodiment.
Please refer to Fig. 2, its structure drawing of device that is taking-up device; In the present embodiment, described spool 15 is applied to the taking-up device of safety strap, and described taking-up device comprises that taking-up device framework 21, torsion bar 20(are shown in Fig. 3) and described spool 15; Described taking-up device framework 21 comprises two relative sidewalls; In described two side, opposite position is provided with the circular port with internal tooth.The two side of described taking-up device has backboard to connect, and forms a U-shaped framework 21.
Please refer to Fig. 3, its structure drawing of device that is spool; In the present embodiment, torsion bar 20 is shaft-like, at its both ends and middle part, circumferential external tooth is all set; Described spool comprises and is provided with through hole along axis and for being wound around the mandrel 19 of ribbon, and separable and be arranged at respectively two end caps 23 at mandrel 19 two ends; Described end cap 23 is oblate bar shape; Each end cap 23 is provided with along periphery the external tooth that matches with the internal tooth profile of tooth of described taking-up device framework 21 sidewalls, and the center towards the inner end surface of mandrel 19 arranges the center shrinkage pool 18 with internal tooth, the internal tooth profile of tooth of described center shrinkage pool 18 and described torsion bar 20 wherein the external tooth profile of tooth of an end match; The middle section position of the through hole of described mandrel 19 positions, axis is provided with the internal tooth matching with described torsion bar 20 middle part external tooths.The end face side center towards mandrel 19 at described end cap 23 is provided with boss, and described center shrinkage pool 18 is arranged on described boss; The end face side relevant position of described mandrel 19 is provided with the space of dodging that holds described boss.In described two end cap 23, in one of them end cap 23 center shrinkage pool 18, be provided with mistake proofing hypodontia.This mistake proofing hypodontia can be used for distinguishing described end cap correct installation site separately, is difficult for occurring setup error.The framework 21(of described taking-up device is shown in Fig. 2) internal tooth section and the external tooth of end cap 23 when intermeshing, spool 15(described in locking is shown in to Fig. 2) mandrel 19, the ribbon of one end of being fixed on described mandrel 19 is no longer drawn out.
In the present embodiment, described torsion bar 20 is separation type, is made up of two parts; In addition, described spool also can adopt the torsion bar of integral type.
In the present embodiment, described mandrel comprises mandrel body 16 and is arranged at least one end of described mandrel body 16 and the pedal wheel 17 coaxial with this mandrel body 16; Described pedal wheel 17 is for being circumferentially with the gear of external gear, and the gabarit of described external gear does not exceed outside described mandrel body 16 outer peripheral faces.
Please refer to Fig. 4, its second structure drawing of device that is spool; In the present embodiment, the two ends of described mandrel body 16 are provided with pedal wheel 17.Described each pedal wheel 17 is two parts along face perpendicular to axial direction by subdivision: Part I 11 and Part II 12; Described two parts are axially separating fixing distance, and are connected as a single entity in the region near centre, and described two parts have identical tooth pitch and profile of tooth, and the corresponding setting of tooth.Adjacent two between cog of described pedal wheel 17 have level and smooth arcuate structure.The wheel 17 of pedal described in the present embodiment is one-body molded with described mandrel body 16, but this is not essential.
Please refer to Fig. 5, its second structure drawing of device that is spool; In the present embodiment, in mandrel 19 both sides, every side at least arranges two force limit pins 25; This force limit pin 25 is fixed on the end face of described mandrel 19, and inserts on end cap 23 pin-and-hole to should force limit pin 25 positions arranging.The two force limit pin 25 setting position differences at described mandrel 19 two ends, can prevent left and right end cap loading error, and guarantee after assembling the external tooth of the two end cap fixing angle that staggers.Described force limit pin 25 can the tangential force between described pedal wheel 17 and described end cap 23 reaches default and above fractures in limited time, thereby shares default power, plays a protective role.
In above embodiment, the two ends of described mandrel body are provided with pedal wheel; In addition, described mandrel body also can only arrange pedal wheel in a side.
In above embodiment, this force limit pin is fixed on the end face of described mandrel, and insertion end covers the pin-and-hole arranging should force limit pin position; In addition, this force limit pin can also be fixed on described end cap, and insert on end face of mandrel the pin-and-hole to should force limit pin position arranging.
Being more than a kind of apparatus structure embodiment of spool, is a kind of embodiment of the safety device that adopts above-mentioned spool below.
Please refer to Fig. 2, its structure drawing of device that is taking-up device; In the present embodiment, described taking-up device comprises spool 15, pretension pipe 29, gas generator 27, base 61 and framework 21.
In the present embodiment, described framework 21 comprises relative two side, is provided with the circular port with internal tooth on this sidewall.Described spool 15 comprises that mandrel 19(is shown in Fig. 3) and be arranged at the end cap 23 at mandrel 19 two ends.On described end cap 23, be provided with framework 21 on the external tooth that matches of internal tooth; Rotatable the floating of described spool 15 is arranged on described framework 21, and two end cap 23 is arranged at respectively in the circular port of described framework 21; Under non-lockup state, the external tooth on end cap 23 and the internal tooth of described circular port do not intermesh, and spool 15 can rotate in described circular port, to be wound around ribbon or to discharge ribbon; In the time that this end cap 23 intermeshes with the internal tooth of described circular port, described spool 15 is realized locking.
Please refer to Fig. 7, it is the constructional drawing of taking-up device framework; In the present embodiment, described taking-up device framework 21 comprises and being oppositely arranged and the first side plate 13 of fixed distance apart, the second side plate 14 and the backboard 10 that is wholely set at homonymy and described biside plate; Described the first side plate 13 described spool corresponding to the second side plate 14 15 positions are respectively arranged with the first through hole and the second through hole, and described the first through hole and the second through hole are for the end of accommodating described spool 15; It is spatial accommodation that described the first side plate 13, the second side plate 14, backboard 10 and border thereof enclose the region forming, and described spatial accommodation is for accommodating described pretension pipe 29 and described spool 15; Described the first side plate 13 and the second side plate 14 can be respectively arranged with protuberance 89 with one end that described base 61 is connected, described protuberance 89 just to arrange; Described two side can be connected with described base 61 and also be provided with trailing arm 81 near one end of its backboard 10, and this trailing arm 81 is for holding up base 61; Described two side can be connected with described base 61 and also be provided with clip 83 away from one end of its backboard 10, and this clip 83, can fastening base 61 after described inside sidewalls bending.
Please refer to Fig. 3, the first device constructional drawing that it is spool; In the present embodiment, described spool 15 comprises and is provided with through hole along axis and for being wound around the mandrel 19 of ribbon, and separable and be arranged at respectively two end caps 23 at mandrel 19 two ends; Described end cap 23 is oblate bar shape; Each end cap 23 is provided with along periphery the external tooth that matches with the internal tooth profile of tooth of described framework 21 sidewalls, and the center towards the inner end surface of mandrel arranges the center shrinkage pool 18 with internal tooth, the internal tooth profile of tooth of described center shrinkage pool 18 and described torsion bar 20 wherein the external tooth profile of tooth of an end match; The middle section position of the through hole of described mandrel 19 positions, axis is provided with the internal tooth matching with described torsion bar 20 middle part external tooths; Described mandrel 19 comprises mandrel body 16 and is arranged at least one end of described mandrel body 16 and the pedal wheel 17 coaxial with this mandrel body 16; Described pedal wheel 17 is for being circumferentially with the gear of external tooth, and the gabarit of described external tooth does not exceed outside described mandrel body 16 outer peripheral faces.In the middle of being divided into, described pedal wheel 17 is provided with the two parts in the gap of pre-set dimension; Described two parts are axially separating fixing distance, and are connected as a single entity in the region near centre, and described two parts have identical tooth pitch and profile of tooth, and the corresponding setting of tooth.
In the present embodiment; between described pedal wheel 17 and described end cap 23, be provided with force limit pin 25; this force limit pin 25 can the tangential force between described pedal wheel 17 and described end cap 23 reaches default and above fractures in limited time, thereby shares default power, plays a protective role.
Please refer to Fig. 6, it is the structure drawing of device of pretension pipe and gas generator tank body; In the present embodiment, the tubular body that described pretension pipe 29 is hollow, comprises that U-shaped portion divides 35 and two bend pipes 31; Described U-shaped portion divides 35 to comprise flat tube and the straight portion being connected with these flat tube two ends, one end of wherein said two bend pipes 31 divides 35 two ends to be connected with described U-shaped portion respectively, and the opening part of the other end of these two bend pipes 31 is provided with guide piece 34; The U-shaped portion of described pretension pipe 29 divides 35 two ends to be connected with one end of described bend pipe 31 respectively, and this U-shaped portion is divided on the sidewall of 35 flat tube and is provided with gas introduction port with described tank body 41 connections; The U-shaped portion of described tank body 41 and pretension pipe 29 divides the axis of 35 flat tube to be arranged in parallel, and aligned through holes and gas introduction port mutually.
Please continue referring to Fig. 7, in the present embodiment, described pretension pipe 29 inside are provided with multiple bullets; Described multiple bullet divides 35 bend pipes 31 that are arranged in order to pretension pipe 29 from the U-shaped portion of pretension pipe 29; The bend pipe 31 of described pretension pipe 29 is around the periphery of the pedal wheel 17 on the mandrel 19 of described taking-up device, and the tooth of 17 outer rims is aimed at described pedal and taken turns in its exit.The end of the outlet of described bend pipe 31 is provided with guide piece 34, and this guide piece 34 can be directed to described pedal by above-mentioned bullet takes turns the tooth of 17 outer rims.
In the present embodiment, on the bend pipe 31 of described pretension pipe 29, be provided with clamp spring hole 32 and pressure limiting mouth 33; Described clamp spring hole 32 is arranged near these pretension pipe 29 exits, and jump ring can stop that by this clamp spring hole 32 bullet drops out from the outlet of this extension pipe 29; Described pressure limiting mouth 33 is the weakening structure on described pretension pipe 29, and this pressure limiting mouth 33 can be thoroughly flexible under default pressure, reduces the pressure in this pretension pipe 29, plays the effect of protection pretension pipe 29.
In the present embodiment, this tank body 41 is connected with the pretension pipe 29 of described taking-up device, and described gas generator 27 is arranged at the first chamber 49 of described tank body 41; Described tank body 41 can be shared the pressure between described pretension pipe 29 and gas generator 27, has reduced the pressure that described pretension pipe 29 and gas generator 27 are born separately, makes the connection between the two more firm.
Please continue referring to Fig. 7, in the present embodiment, described tank body 41 also comprises lip 45; Described lip 45 is arranged at the outside that is provided with opening on the wall of the first chamber 49 of described cavity 47.This lip 45 makes tank body 41 be more prone to when mounted find accurately gas introduction port corresponding on described pretension pipe 29; After described tank body 41 and pretension pipe 29 install, described lip 45 can make the junction sealing of described gas introduction port and tank body 41 tighter, and sealing property between described tank body 41 and pretension pipe 29 can be better.
Please continue referring to Fig. 7, in the present embodiment, the both sides of the opening on the sidewall of the first chamber 49 of described cavity 47 are provided with arcs of recesses structure 43.In described arcs of recesses structure 43, be provided with tapped bore.Described arcs of recesses structure 43 places can installation fixing piece 37 and screw 39, and this screw 39 is thread-forming screw; Described fixed plate 37 has the arcs of recesses structure matching with the arcs of recesses structure 43 of described cavity 47, can realize fixing between described tank body 41 and pretension pipe 29.After the arcs of recesses structure 43 of the opening part of described tank body 41 and lip 45 are aimed at the gas introduction port on described pretension pipe 29 sidewalls, described fixed plate 37 is buckled in above-mentioned pretension pipe 29 on described tank body 41, hole on this fixed plate 37 is aimed at the tapped bore in described arcs of recesses structure 43, and described screw 39 is through described fixed plate 37 and by fixing above-mentioned pretension pipe 29.
In the present embodiment, described gas generator 27 is fixedly installed in the first chamber 49 of this tank body 41, and the air extractor duct of this gas generator 27 is arranged on its sidewall, and with the through-hole alignment of the first chamber 49 of described tank body 41; One end of described gas generator 27 is connected with acceleration pick-up, and this acceleration pick-up is arranged at the transportation device at described taking-up device place; In the time that acceleration pick-up detects that the acceleration/accel of the transportation device at described taking-up device place exceedes default value, to send actuation signal to described gas generator 27 rapidly, described gas generator 27 receives after this actuation signal, to spray high pressure gas, these high pressure gas enter described pretension pipe 29 by the opening of described gas generator 27 and the through hole of tank body 41; Described high pressure gas can be released the multiple bullets in pretension pipe 29.Described multiple bullets will strike the external tooth of above-mentioned pedal wheel 17 successively, promote described pedal wheel 17 and rotate, and this pedal wheel 17 is with moving mandrel 19 to rotate simultaneously.
Please refer to Fig. 2, in the present embodiment, described base 61 comprises: diapire 69, corresponding to described taking-up device framework 21 side plates and tergal position the sidewall that is wholely set with described diapire 69, and wherein, the space that described diapire 69 and sidewall form forms the bullet accommodation space of prefastening safety device; With the corresponding sidewall of described the first side plate 13 be the first side wall 62, with the corresponding sidewall of described the second side plate 14 be the second sidewall 64; The outside of two side on described diapire 69, near described taking-up device framework 21 backboard 10 places, is also provided with the upwardly extending fixing ear 63 along this outside, and this fixing ear 63 matches with the protuberance 89 of described taking-up device framework 21 biside plate bottoms.Described fixing ear 63 is one-body molded with described diapire 69 and sidewall.Described fixing ear 63 is two, sets up separately with two side outside and away from a side of described taking-up device framework 21 backboards 10.It between described fixing ear 63 and framework 21, is a kind of removable connection structure.
Please refer to Fig. 8, the first device constructional drawing that it is base; In the present embodiment, described base 61 comprises diapire 69, with see Fig. 7 corresponding to described taking-up device framework side plate and backboard 10() position the sidewall that is wholely set with described diapire 69, wherein, the space that described diapire 69 and sidewall form forms the bullet accommodation space of prefastening safety device; See Fig. 7 with described the first side plate 13() corresponding sidewall is the first side wall 62, sees Fig. 7 with described the second side plate 14() corresponding sidewall is the second sidewall 64; Corresponding to the position of described pedal wheel, be also provided with mandrel guide frame in described the first side wall 62 and the second sidewall 64 inner sides; Described mandrel guide frame at least has the spill curved guiding surface 66 matching with described pedal wheel outline.
Please continue referring to Fig. 8, in the present embodiment, described sheet projection 65 is blade-like or wedge shape, and the thickness that its area thickness away from described arc-shaped concave approaches arc concave region compared with it is little.Stating sheet projection 65 tops tilts towards the direction exporting corresponding to pretension pipe 29.Described sheet projection 65 can stop that described pedal wheel 17(is shown in Fig. 3) foreign matter between two parts, avoid in the middle of foreign matter blocks; Meanwhile, this sheet projection 65 can also be in the position of axial restraint spool, prevents spool left and right play.
In the present embodiment, in the outside of the sidewall of described base, close described taking-up device framework backboard 10 places, are also provided with the upwardly extending fixing ear 63 along this outside, and this fixing ear 63 can be shown in Fig. 7 with the protuberance 89(of the side plate of described taking-up device framework) match.This fixing ear 63 leans with described protuberance 89, limits the mutual alignment between described base 61 and taking-up device framework.Described fixing ear 63 is one-body molded with described diapire 69 and sidewall.
In the present embodiment, in described base 61, be also provided with bullet buffer structure 67 along described the first side wall 62 and the second sidewall 64 inner sides, described bullet buffer structure 67 at least has dip plane or the contoured surface at the middle part along respective side walls top to diapire.Described bullet buffer structure 67 is for being arranged at the ledge structure of inside sidewalls, and the gabarit of described ledge structure forms slope profile face.This bullet buffer structure 67 is just right with the gap of described pedal wheel 17, can be the effect that bullet plays buffering to falling, and particular content is shown in following embodiment.
Please continue referring to Fig. 8, in the present embodiment, on described base 61 and between the sheet of same side projection 65 and bullet buffer structure 67 tops, also be provided with bullet guide frame 68, described bullet guide frame 68 is cancave cambered surface shape.This bullet guide frame 68 is by the lead position of described bullet buffer structure 67 of the bullet flying.
In the present embodiment, described prefastening safety device also comprises the lever and the slide block that promote described spool, the part in the relative base 61 line of centers outsides of described mandrel guide frame is provided with the slider support face 95 matching with described slide block, and the spill curved guiding surface 66 that this slider support face 95 is relatively described mandrel guide frame caves in; This slider support face 95 provides the bearing surface of slip for described slide block.Meanwhile, described base 61 also comprises lever positioning groove 97; This lever positioning groove 97 is arranged at described sidewall outside, for settling described lever.Described lever can rotate relative to this lever positioning groove 97, and relies on torsion spring that propulsive effort is provided.
Please refer to Fig. 9, its second structure drawing of device that is base; In the present embodiment, described sidewall outside is provided with arcs of recesses space 91 with described diapire 69 intersections, and this arcs of recesses space 91 can accommodating described gas generator tank body.On described sidewall, be provided with the air extractor vent 93 communicating with this arcs of recesses space 91.This air extractor vent 93 can make the gas that described gas generator leaks discharge, and avoids described arcs of recesses space 91 place's air pressure too high.
In the present embodiment, the diapire 69 of described base 61 position that is connected with sidewall is provided with hold down groove 85, and this hold down groove 85 can match with the clip of described taking-up device framework 83.Described clip 83 is after described taking-up device has assembled, and bending to the inside, near this hold down groove 85.
In the present embodiment, diapire 69 outsides and the connection, described two side of described base 61 are arranged at bracket 87, and this bracket 87 can match with the trailing arm of described taking-up device framework.The outline of this bracket 87 is consistent with the profile of ladder in described bullet buffer structure 67.Described trailing arm 81 can support described base 61, and make between this base 61 and taking-up device framework be connected more firm.
In the present embodiment, diapire 69 middle parts of described base 61 are provided with to the inner outstanding projection of described base 61, and this projection is recess in described diapire 69 outsides.Described protruding 71 trend is consistent with the boundary line trend of described diapire 69 and two side.This projection 71 can improve the rigidity of base 61.
Being more than a kind of apparatus structure embodiment of safety device, is the embodiment that this safety device tightens up belt-strap below.
In the present embodiment, described gas generator is connected with acceleration pick-up, and this acceleration pick-up is arranged at the transportation device at described taking-up device place.
Whether the acceleration/accel that described acceleration pick-up can detect the transportation device at described taking-up device place has exceeded default value; In the time that acceleration pick-up detects that the acceleration/accel of the transportation device at described taking-up device place exceedes default value, to send actuation signal to described gas generator 27 rapidly, described gas generator 27 receives after this actuation signal, by the opening ejection high pressure gas from its sidewall, these high pressure gas enter described pretension pipe 29 by the opening part on described gas generator 27 sidewalls.These high pressure gas are by the multiple bullets in the described pretension pipe 29 of promotion to both sides quick travel, and described multiple bullets spray from its opening through the bend pipe 31 of described pretension pipe 29; And the opening of described bend pipe 31 is aimed at the external tooth of the pedal wheel 17 that is arranged at described mandrel body two ends just, described multiple bullets strike the external tooth of pedal wheel 17 successively, promote described pedal wheel 17 and spool 15 and rotate to the direction of tightening up described ribbon, realize the effect of pre-tightening.
Described in described projectile impact, after the external tooth of pedal wheel 17, drop in described base 61, received by described base 61.In the present embodiment, the two ends of described mandrel body arrange respectively pedal wheel 17, and coordinate the effect of described pretension pipe 29, in the two ends of described spool, can make the force-bearing situation of this spool more even impact force action.
In the present embodiment, described base 61 is arranged at the below of described framework 21, and its edge is connected with removable structure with framework 21.This base 61 can be received multiple bullets of ejection from described pretension pipe 29, and can seal the space of described taking-up device bottom.
In above embodiment, described pedal wheel is arranged at the two ends of described mandrel; In addition, described pedal wheel can also be only set in wherein one end of described mandrel; One end that is provided with pedal wheel at described mandrel arranges pretension pipe.
In above embodiment, one end of described mandrel is provided with two adjacent pedal wheels; In addition, this mandrel can also at one end arrange multiple pedal wheels.
The present invention provides a kind of transportation device simultaneously, adopts the safety device described in technique scheme.
The present invention provides a kind of mandrel simultaneously, is applied to above-mentioned spool.Described mandrel comprises mandrel body and is arranged at least one end of described mandrel body and the pedal wheel coaxial with this mandrel body; Described pedal wheel is for being circumferentially with the gear of external gear, and the gabarit of described external gear does not exceed outside described mandrel body outer peripheral face; The middle section position of the through hole of position, described mandrel axis is provided with the internal tooth matching with described torsion bar middle part external tooth; In mandrel both sides, every side at least arranges two force limit pins; This two force limit pins setting position difference.
Above the embodiment of spool provided by the invention, safety device, transportation device and mandrel is described in detail.Having applied specific case herein sets forth principle of the present invention and embodiment.
The above is only the preferred embodiment of the present invention.The explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , it should be pointed out that for those skilled in the art meanwhile, do not departing under the prerequisite of groundwork of the present invention, according to thought of the present invention, all will change in specific embodiments and applications.Can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
In sum, this description should not be construed as limitation of the present invention.
Claims (12)
1. a spool, is applied to the taking-up device of safety strap, and described taking-up device comprises taking-up device framework, torsion bar and described spool; Described taking-up device framework comprises two relative sidewalls; In described two side, opposite position is provided with the circular port with internal tooth; It is shaft-like that torsion bar is, and at its both ends and middle part, circumferential external tooth is all set;
It is characterized in that, described spool comprises and is provided with through hole along axis and for being wound around the mandrel of ribbon, and separable and be arranged at respectively two end caps at mandrel two ends; Described end cap is oblate bar shape; Each end cap is provided with along periphery the external tooth that matches with the internal tooth profile of tooth of described taking-up device frame side wall, and the center towards the inner end surface of mandrel arranges the center shrinkage pool with internal tooth, the internal tooth profile of tooth of described center shrinkage pool and described torsion bar wherein the external tooth profile of tooth of an end match; The middle section position of the through hole of position, described mandrel axis is provided with the internal tooth matching with described torsion bar middle part external tooth;
Described mandrel comprises mandrel body and is arranged at least one end of described mandrel body and the pedal wheel coaxial with this mandrel body; Described pedal wheel is for being circumferentially with the gear of external gear, and the gabarit of described external gear does not exceed outside described mandrel body outer peripheral face.
2. spool according to claim 1, is characterized in that: it is two parts by subdivision that described each pedal wheel prolongs face perpendicular to axial direction: Part I and Part II; Described two parts are axially separating fixing distance, and are connected as a single entity in the region near centre, and described two parts have identical tooth pitch and profile of tooth, and the corresponding setting of tooth.
3. spool according to claim 1 and 2, is characterized in that, adjacent two between cog of described pedal wheel have level and smooth arcuate structure.
4. spool according to claim 1, is characterized in that, described pedal wheel and described this body by integral forming of mandrel.
5. spool according to claim 1, is characterized in that, is provided with pedal wheel at the two ends of described mandrel body.
6. spool according to claim 1, is characterized in that: in mandrel both sides, every side at least arranges two force limit pins; This force limit pin is fixed on the end face of described mandrel, and insertion end covers the pin-and-hole arranging should force limit pin position, or this force limit pin is fixed on described end cap, and inserts on end face of mandrel the pin-and-hole to should force limit pin position arranging.
7. spool according to claim 1, is characterized in that, the two force limit pin setting position differences at described mandrel two ends, can prevent left and right end cap loading error, and guarantees after assembling the external tooth of the two end cap fixing angle that staggers.
8. spool according to claim 1, is characterized in that, is provided with boss in the end face side center towards mandrel of described end cap, and described center shrinkage pool is arranged on described boss; End face side relevant position at described mandrel is provided with the space of dodging that holds described boss.
9. spool according to claim 1, is characterized in that, in described two end cap, in the center shrinkage pool of one of them end cap, is provided with mistake proofing hypodontia.
10. a safety device, is characterized in that, adopts the arbitrary described spool of the claims 1 to 9.
11. 1 kinds of transportation devices, is characterized in that, adopt the erecting device described in the claims 10.
12. 1 kinds of mandrels, are applied to the arbitrary described spool of claim 1 to 9, it is characterized in that: comprising: mandrel body and be arranged at least one end of described mandrel body and the pedal wheel coaxial with this mandrel body; Described pedal wheel is for being circumferentially with the gear of external gear, and the gabarit of described external gear does not exceed outside described mandrel body outer peripheral face; The middle section position of the through hole of position, described mandrel axis is provided with the internal tooth matching with described torsion bar middle part external tooth; In mandrel both sides, every side at least arranges two force limit pins; This two force limit pins setting position difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410069683.6A CN103832392A (en) | 2014-02-27 | 2014-02-27 | Reel, safety device, transportation equipment and mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410069683.6A CN103832392A (en) | 2014-02-27 | 2014-02-27 | Reel, safety device, transportation equipment and mandrel |
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| Publication Number | Publication Date |
|---|---|
| CN103832392A true CN103832392A (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410069683.6A Pending CN103832392A (en) | 2014-02-27 | 2014-02-27 | Reel, safety device, transportation equipment and mandrel |
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| Country | Link |
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| CN (1) | CN103832392A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108824059A (en) * | 2018-06-19 | 2018-11-16 | 东莞市联洲知识产权运营管理有限公司 | A kind of roller shell structure on paper-making drying cylinder |
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Application publication date: 20140604 |