CN2799335Y - Tape winding apparatus - Google Patents
Tape winding apparatus Download PDFInfo
- Publication number
- CN2799335Y CN2799335Y CN 200520011412 CN200520011412U CN2799335Y CN 2799335 Y CN2799335 Y CN 2799335Y CN 200520011412 CN200520011412 CN 200520011412 CN 200520011412 U CN200520011412 U CN 200520011412U CN 2799335 Y CN2799335 Y CN 2799335Y
- Authority
- CN
- China
- Prior art keywords
- spool
- slide block
- rotation
- swivel
- securing rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model provides a tape winding apparatus. The utility model uses a clutch so that rotation is transferred to a winding shaft just from the side of a motor, and the utility model also has the advantage of simple and compact structure. The clutch of the tape winding apparatus uses the simple structure that a slide block 144 of a main body part 114 of the clutch is kept on a shell body by friction force; the slide block 144 and a locking rod 154 move correspondingly; the corresponding movement between the slide block 144 and the locking rod 154 enables the locking rod 154 to move towards the position where the locking rod 154 is combined with a ratchet wheel 134 or the position where the combination between the locking rod 154 and the ratchet wheel 134 is removed. Furthermore, as compared with the structure in which an old clutch uses a large inertia circular disc with large weight for enabling a pawl to move, the integral structure of the clutch 100 is miniaturized (particularly thinned) greatly, thereby, the integral structure of the tape winding apparatus 10 is compact.
Description
Technical field
The utility model relates to a kind of tape winding apparatus, particularly a kind ofly makes spool rotation by motor, thus the tape winding apparatus of the band of can reeling.
Background technology
The seat safety belt apparatus that is used to fetter the passenger has tape winding apparatus.Be provided with in this tape winding apparatus be used to alleviate or when eliminating frenulum excessive constriction so-called pulling force pressure reducer mechanism, and during vehicle emergency deceleration regime etc., with a certain amount of tape wrapping on spool, be called as relaxing on a small quantity that " easy fit " wait thereby eliminate, increase the constrained force of band simultaneously to passenger's body, further certain fixedly pre-stretching device of passenger's body, and, under the effect of motor, carry out the so-called motor retractor of above-mentioned each function known (as an example, can with reference to patent documentation 1, patent documentation 2).
This motor retractor is very useful, not only can bring into play the function of for example foregoing pulling force pressure reducer and pretensioner, in the time of also can assisting frenulum at ordinary times with coiling and pull out.
Particularly developed in recent years in foregoing motor retractor, detect the distance of other vehicle of the place ahead and obstacle with the place ahead monitoring devices such as rang sensors, if the not enough certain value of distance to front vehicles or obstacle, starter motor then makes the structure of spool to the coiling direction rotation by the rotational force of motor.In such motor retractor, between the output shaft of motor and spool power-transfer clutch is set for the rotation that prevents the spool side passes to motor, this power-transfer clutch makes rotation only can be delivered to spool from the output shaft side of motor.
But, have inertia disk for example in the above-mentioned existing motor retractor, push inertia disk the spring of predetermined direction to, utilize the force of inertia that acts on this inertia disk that ratchet is moved, thereby connect or loosen the clutch.Therefore, must guarantee the size and the weight of inertia disk, thereby have the whole problem that maximizes of power-transfer clutch.
[patent documentation 1] Japanese Patent Application Laid-Open 2001-130376 communique
[patent documentation 2] Japanese Patent Application Laid-Open 2001-347923 communique
The utility model content
The utility model is considered above-mentioned situation, and the purpose of this utility model is to provide a kind of tape winding apparatus, not only can make rotation only pass to spool from motor-side by means of power-transfer clutch, and simple, compact conformation.
In first scheme of the present utility model, tape winding apparatus comprises spool, motor and power-transfer clutch, wherein said reel can be reeled or be twined the band that is used to fetter the passenger with pulling out, above-mentioned clutch mechanism ground is between aforementioned motor and aforementioned spool, and the rotation of aforementioned motor passed to aforementioned spool, make aforementioned spool rotation, cut off the transmission of the rotation that aforementioned spool side produced simultaneously, to prevent that this rotation from passing to aforementioned motor, aforementioned clutch comprises following parts: aforementioned relatively spool is provided with coaxially, the swivel that transmits the rotation of aforementioned motor and rotate, can aforementioned relatively swivel, the slide block that in preset range, relatively moves, and be arranged on securing rod on the aforementioned swivel, this securing rod is remained on combining of aforementioned spool by aforementioned slide block usually and removes on the position, when aforementioned swivel centers on axis to a direction rotation, this securing rod combines with aforementioned spool, aforementioned swivel is passed to aforementioned spool around aforementioned axis to the rotation of a direction, allow aforementioned spool with respect to of the relative rotation of aforementioned swivel simultaneously to a direction that centers on aforementioned axis, when aforementioned swivel centered on axis to another direction rotation, aforementioned slide block made this securing rod move to and remain on aforementioned in conjunction with removing on the position.
Tape winding apparatus based on first scheme has the power-transfer clutch that the rotation of motor is passed to spool.This power-transfer clutch have the rotation of transmitting motor and the swivel that rotates, by be arranged on swivel on spool combine, swivel is passed to the securing rod of spool around axis to the rotation of a direction.This securing rod is remained on combining of spool by slide block usually and removes on the position.Therefore, swivel can rotate relatively mutually with spool usually, can prevent from the rotation that the spool side produces is passed to motor.
Thus, stretch and to leave band in this tape winding apparatus in if be sitting in passenger on the vehicle seat, then spool rotation, band is drawn out simultaneously.Thus, the band that the passenger will pull out ties up on the health, engages with buckle device by for example making setting tongue tray on tape, band can be assemblied on the health.
And then in case the motor rotation, the swivel of power-transfer clutch rotates to a direction around axis.At this moment, the relative slide block of swivel relatively moves in preset range, and slide block was removed the stopping of securing rod that is arranged on the swivel, and this securing rod combines with spool.Thus, swivel passes to spool to the rotation of a direction by securing rod around axis, and spool rotates to a direction around axis.
But under this state,, therefore, also can forcibly make spool center on axis independently with motor and rotate to a direction with for example other pre-tensioning device etc. because securing rod allows spool to rotate relatively to a direction around axis with respect to swivel.
On the other hand, if the motor counter-rotating, the swivel of power-transfer clutch rotates to another direction around axis.At this moment, the relative slide block of swivel relatively moves in preset range, and slide block makes the securing rod that is arranged on the swivel move to once more and remain on combining of spool and removes on the position.Thus, swivel can rotate once more relatively with spool, and spool can rotate freely.
Herein as mentioned above, the power-transfer clutch of this tape winding apparatus adopts simple structure, that is, slide block and securing rod are relatively moved, and this relatively moves and makes securing rod to the binding site of spool or combine and remove the position and move.Thereby, to compare with the structure that the such employing inertia disk large-scale and that weight is big of former power-transfer clutch moves ratchet, the miniaturization significantly of the integral structure of power-transfer clutch can make the integral structure of tape winding apparatus compact more thus.
In the utility model alternative plan, tape winding apparatus comprises spool, motor and power-transfer clutch, wherein said reel can be reeled or be twined the band that is used to fetter the passenger with pulling out, above-mentioned clutch mechanism ground is between aforementioned motor and aforementioned spool, and the rotation of aforementioned motor passed to aforementioned spool, make the coiling direction rotation of the axial aforementioned band of aforesaid roll, cut off the transmission of the rotation that aforementioned spool side produced simultaneously, to prevent that this rotation from passing to aforementioned motor, aforementioned clutch comprises following parts: housing, aforementioned relatively spool is provided with coaxially, the swivel that transmits the rotation of aforementioned motor and rotate, be connected the ratchet on the aforementioned spool integratedly, remained on the aforementioned housing by friction force, thereby the slide block that can aforementioned relatively swivel in preset range, relatively moves, and be arranged on securing rod on the aforementioned swivel, this securing rod always is pushed to the bonding position with aforementioned ratchet, usually remained on combining of aforementioned ratchet by aforementioned slide block simultaneously and remove on the position, when aforementioned swivel during to the rotation of the coiling direction of aforementioned band, this securing rod moves with leaving aforementioned slide block, remove aforementioned maintained state, under the effect of aforementioned thrust, combine with aforementioned ratchet, aforementioned swivel is passed to aforementioned ratchet to the rotation of the coiling direction of aforementioned band, allow aforementioned ratchet to rotate relatively simultaneously with respect to the coiling direction of aforementioned swivel to aforementioned band, when aforementioned swivel during to the rotation of the pull-out direction of aforementioned band, move, aforementioned slide block makes this securing rod move to and remain on aforementioned in conjunction with removing on the position the approaching aforementioned slide block of this securing rod.
Tape winding apparatus based on this programme has the power-transfer clutch that the rotation of motor is passed to spool.This power-transfer clutch has the rotation of transmitting motor and the swivel that rotates, integratedly be connected ratchet on the spool, combine with ratchet on being arranged on swivel, thereby swivel is passed to the securing rod of ratchet to the rotation of tape wrapping direction.This securing rod always is pushed to the bonding position with ratchet, is remained on combining of ratchet by slide block usually and removes on the position.Therefore, swivel can rotate relatively mutually with ratchet usually, can prevent from the rotation that the spool side produces is passed to motor.
Thus, stretch and to leave band in this tape winding apparatus in if be sitting in passenger on the vehicle seat, then roll up the rotation of axial zone pull-out direction, band is drawn out simultaneously.Thus, the band that the passenger will pull out ties up on the health, engages with buckle device by for example making setting tongue tray on tape, band can be assemblied on the health.
And then for example in vehicle was advanced, there was obstacle in vehicle front, and the interval between vehicle and the obstacle (distance from the vehicle to the obstacle) reach in the preset range, then motor rotation, and the swivel of power-transfer clutch rotates to the tape wrapping direction.At this moment, friction force remains on the housing slide block, so the relative slide block of swivel can relatively move in preset range, and the securing rod that is arranged on the swivel moves with leaving slide block.
Therefore, thrust makes securing rod combine with ratchet, and the rotation to the tape wrapping direction of swivel passes to ratchet by this securing rod.Thus, ratchet is to the rotation of tape wrapping direction, and the spool that is connected integratedly on the ratchet rotates to the tape wrapping direction.Thereby band is wrapped on the spool, the some slack of the band under the installing condition, and promptly so-called " easy fit " eliminated, and can improve the constrained force of band to passenger's body.
Under this state, because securing rod allows ratchet (spool) to rotate relatively to the tape wrapping direction with respect to swivel, therefore, under the state of having eliminated " easy fit " as mentioned above, for example collide under the unavoidable situation, also can spool be rotated to the tape wrapping direction with other pre-tensioning device etc. at vehicle.At this moment, can further improve the constrained force of band to passenger's body, the injury to the passenger in the time of vehicle can being collided is reduced to bottom line.
On the other hand, avoid that above-mentioned vehicle collides dangerous the time, the motor counter-rotating, the swivel of power-transfer clutch is to the rotation of band pull-out direction.At this moment, friction force remains on the housing slide block, so the relative slide block of swivel can relatively move in preset range, be arranged on the swivel securing rod near slide block move.Therefore, slide block moves to securing rod once more and remains on combining of ratchet and removes on the position.Thus, swivel can rotate relatively once more with ratchet, and spool can rotate freely.
Herein, the power-transfer clutch of this tape winding apparatus adopts simple structure, and as mentioned above, friction force remains on the housing slide block, and slide block and securing rod are relatively moved, and this relatively moves and makes securing rod move to the position that combines with ratchet or in conjunction with the position of removing.And, to compare with the structure that the such employing inertia disk large-scale and that weight is big of former power-transfer clutch moves ratchet, the miniaturization significantly of the integral structure of power-transfer clutch can make the integral structure of tape winding apparatus compact more thus.
In third party's case of the present utility model, based on above-mentioned first or the aforementioned swivel of the tape winding apparatus of alternative plan have the rotation of transmitting aforementioned motor and the gear that rotates, support the rotor of aforementioned securing rod and be arranged between aforesaid gears and the aforementioned rotor and be connected the two elastic claw, this elastic claw passes to aforementioned rotor with the rotation of aforesaid gears, simultaneously when the load that surpasses predetermined value acts on the aforementioned rotor, aforementioned load cuts off the transmission of the rotation between aforesaid gears and the aforementioned rotor, and aforesaid gears can be dallied relatively with aforementioned rotor.
In the tape winding apparatus based on this programme, in case the rotation of motor causes the gear rotation, this rotation promptly passes to rotor by elastic claw, then rotor rotation.Therefore, be supported on epitrochanterian securing rod and can relatively move in preset range with respect to slide block, by the hand of rotation of switching motor, slide block can stop securing rod and remove slide block stopping securing rod.
On the other hand, for example securing rod makes under spool and the rotor bonded assembly state, and band will be when the load effect of predetermined value be on spool, and the loading that surpasses predetermined value acts on the rotor by securing rod.If the load effect that surpasses predetermined value is on rotor, then under the effect of this loading, elastic claw cuts off the transmission of the rotation between gear and the rotor, makes gear can dally relatively with rotor (so-called " load suppression gear mechanism ").Thus, the propulsive effort that can prevent motor makes by securing rod and the rotation of rotor bonded assembly spool with excessive power.
In the cubic case of the present utility model, tape winding apparatus comprises spool, motor and power-transfer clutch, wherein said reel can be reeled or be twined the band that is used to fetter the passenger with pulling out, above-mentioned clutch mechanism ground is between aforementioned motor and aforementioned spool, and the rotation of aforementioned motor passed to aforementioned spool, make aforementioned spool rotation, cut off the transmission of the rotation that aforementioned spool side produced simultaneously, to prevent that this rotation from passing to aforementioned motor, aforementioned clutch comprises following parts: aforementioned relatively spool is provided with coaxially, the swivel that transmits the rotation of aforementioned motor and rotate, aforementioned relatively swivel can relatively move in preset range, have slide block simultaneously to one of aforementioned moving direction side-prominent pressurization retention tab, and be arranged on securing rod on the aforementioned swivel, this securing rod always is pushed to the bonding position with aforementioned spool, have simultaneously to the side-prominent releasing sheet of the aforementioned pressurization retention tab of aforementioned slide block, common aforementioned releasing sheet combines with aforementioned pressurization retention tab, thereby this securing rod remained on combining of aforementioned spool remove on the position, when aforementioned swivel centers on axis to a direction rotation, this securing rod moves with leaving aforementioned slide block, remove aforementioned maintained state, under the effect of aforementioned thrust, combine with aforementioned spool, aforementioned swivel is passed to aforementioned spool around aforementioned axis to the rotation of a direction, simultaneously when aforementioned swivel centers on axis to another direction rotation, move the approaching aforementioned slide block of this securing rod, aforementioned releasing sheet combines with aforementioned pressurization retention tab, thereby it is aforementioned in conjunction with removing on the position to make this securing rod move to and remain on, and, in the aforementioned releasing sheet of the aforementioned pressurization retention tab of aforementioned slide block and aforementioned securing rod at least one has maintaining part, aforementioned slide block when this maintaining part stops for aforementioned swivel leaves moving of aforementioned securing rod, produces certain resistance.
Tape winding apparatus based on this programme has the power-transfer clutch that the rotation of motor is passed to spool.This power-transfer clutch have the rotation of transmitting motor and the swivel that rotates, by be arranged on swivel on spool combine, swivel is passed to the securing rod of spool around axis to the rotation of a direction.This securing rod has the releasing sheet usually, should remove sheet usually and combine with the pressurization retention tab of slide block, securing rod is remained on combining of spool remove on the position.Therefore, swivel can rotate relatively mutually with spool usually, can prevent from the rotation that the spool side produces is passed to motor.
Thus, can obtain the effect identical effect obtained with the tape winding apparatus of above-mentioned first scheme.
In the power-transfer clutch based on the tape winding apparatus of this programme, at least one in the pressurization retention tab of slide block and the releasing sheet of securing rod has maintaining part, and the slide block when this maintaining part stops for swivel leaves moving of securing rod, produces certain resistance.Thereby, during vehicle strenuous vibration in for example advancing, even slide block moves with leaving securing rod, under the effect of the above-mentioned predetermined resistance that maintaining part produces, can stop above-mentioned separation to be moved, keep the bonding state of the releasing sheet of the pressurization retention tab of slide block and securing rod.Thus, can prevent from unexpectedly to remove slide block, prevent the erroneous combination of power-transfer clutch the stopping of securing rod.
In the utility model the 5th scheme, the aforementioned maintaining part of the tape winding apparatus of above-mentioned cubic case forms the dip plane, when aforementioned slide block and aforementioned securing rod were mobile discretely, aforementioned thrust was resisted in this dip plane, made aforementioned securing rod move scheduled volume to removing direction with combining of aforementioned spool.
In the tape winding apparatus based on this programme, at least one in the pressurization retention tab of slide block and the releasing sheet of securing rod is provided with the dip plane.When slide block and securing rod were mobile discretely, this dip plane antagonism thrust made securing rod move scheduled volume to removing direction with combining of spool.Thus, can leave the certain resistance of mobile generation of securing rod, prevent the erroneous combination of power-transfer clutch slide block.
In the 6th scheme of the present utility model, tape winding apparatus comprises spool, motor and power-transfer clutch, wherein said reel can be reeled or be twined the band that is used to fetter the passenger with pulling out, above-mentioned clutch mechanism ground is between aforementioned motor and aforementioned spool, and the rotation of aforementioned motor passed to aforementioned spool, make aforementioned spool rotation, cut off the transmission of the rotation that aforementioned spool side produced simultaneously, to prevent that this rotation from passing to aforementioned motor, aforementioned clutch comprises following parts: aforementioned relatively spool is provided with coaxially, the swivel that transmits the rotation of aforementioned motor and rotate, the slide block that can aforementioned relatively swivel in preset range, relatively moves, and be arranged on securing rod on the aforementioned swivel, this securing rod always is pushed to combining of aforementioned spool and removes direction, when aforementioned swivel centers on axis to a direction rotation, aforementioned slide block is pressed to aforementioned spool side with this securing rod, this securing rod combines with aforementioned spool, aforementioned swivel is passed to aforementioned spool around aforementioned axis to the rotation of a direction, simultaneously when aforementioned swivel centers on axis to another direction rotation, aforementioned slide block has been removed the aforementioned pressure of this securing rod, and aforementioned thrust makes this securing rod move to and remain on aforementioned in conjunction with removing on the position.
Tape winding apparatus based on this programme has the power-transfer clutch that the rotation of motor is passed to spool.This power-transfer clutch have the rotation of transmitting motor and the swivel that rotates, by be arranged on swivel on spool combine, swivel is passed to the securing rod of spool around axis to the rotation of a direction.This securing rod is pressed towards usually with combining of spool and removes direction, and securing rod is maintained at combining of spool and removes on the position usually.Therefore, swivel can rotate relatively mutually with spool usually, can prevent from the rotation that the spool side produces is passed to motor.
Thus, can obtain the effect identical effect obtained with the tape winding apparatus of above-mentioned first scheme.
In the power-transfer clutch based on the tape winding apparatus of this programme, securing rod always is pressed towards with combining of spool and removes direction.Thereby even during the vehicle generation strenuous vibration in for example advancing, thrust also can make securing rod remain on combining of spool and remove on the position.Thus, can prevent that securing rod from unexpectedly combining with spool, prevents the erroneous combination of power-transfer clutch.
In the 7th scheme of the present utility model, tape winding apparatus comprises spool, motor and power-transfer clutch, wherein said reel can be reeled or be twined the band that is used to fetter the passenger with pulling out, above-mentioned clutch mechanism ground is between aforementioned motor and aforementioned spool, and the rotation of aforementioned motor passed to aforementioned spool, make aforementioned spool rotation, cut off the transmission of the rotation that aforementioned spool side produced simultaneously, to prevent that this rotation from passing to aforementioned motor, aforementioned clutch comprises following parts: aforementioned relatively spool is provided with coaxially, the swivel that transmits the rotation of aforementioned motor and rotate, the a pair of slide block that can aforementioned relatively swivel in preset range, relatively moves respectively, connect aforementioned a pair of slide block and make described slide block keep synchronous pad, and be arranged on pair of locking bar on the aforementioned swivel, usually aforementioned each slide block remains on this pair of locking bar respectively and removes on the position with combining of aforementioned spool, when aforementioned swivel centers on axis to a direction rotation, the maintained separately aforesaid state of this pair of locking bar has been removed, combine with aforementioned spool respectively, aforementioned swivel is passed to aforementioned spool around aforementioned axis to the rotation of a direction, when aforementioned swivel centered on axis to another direction rotation, aforementioned each slide block made this pair of locking bar move to and remain on aforementioned in conjunction with removing on the position respectively simultaneously.
Tape winding apparatus based on this programme has the power-transfer clutch that the rotation of motor is passed to spool.This power-transfer clutch have the rotation of transmitting motor and the swivel that rotates, by be arranged on swivel on spool combine, swivel is passed to the pair of locking bar of spool around axis to the rotation of a direction.This pair of locking bar is remained on respectively by a pair of slide block usually and removes on the position with combining of spool.Therefore, swivel can rotate relatively mutually with spool usually, can prevent from the rotation that the spool side produces is passed to motor.
Thus, can obtain the effect identical effect obtained with the tape winding apparatus of above-mentioned first scheme.
In the power-transfer clutch based on the tape winding apparatus of this programme, the pair of locking bar is remained on respectively and being connected under the effect of pad and keeping synchronous in conjunction with removing locational a pair of slide block of spool.
Thereby, even because for example vehicle strenuous vibration etc. causes a slide block with respect to swivel (securing rod) when relatively moving, as long as another slide block and pad do not relatively move with respect to swivel, a slide block can not removed just stopping of a securing rod.That is, in this power-transfer clutch, as long as each slide block and pad do not relatively move simultaneously with respect to each securing rod, each slide block can not removed just stopping of each securing rod.
Thus, when swivel stops (when motor stops), can prevent that a pair of slide block from unexpectedly relatively moving with respect to the pair of locking bar, can prevent the erroneous combination of power-transfer clutch.
Of the present utility model the from all directions in the case, comprises housing based on the aforementioned clutch of the tape winding apparatus of above-mentioned the 7th scheme, and aforementioned pad and aforementioned housing moving contact.
In the tape winding apparatus based on this programme, power-transfer clutch has housing, connects a pair of slide block and makes it keep synchronous pad and this housing moving contact.Because friction force acts on the pad, therefore can prevent further that a pair of slide block and pad from relatively moving unexpectedly with respect to swivel (being the pair of locking bar), can prevent the erroneous combination of power-transfer clutch really.
As mentioned above, tape winding apparatus of the present utility model not only can make rotation only pass to spool from motor-side by means of power-transfer clutch, and simple, compact conformation.
And tape winding apparatus of the present utility model can prevent the erroneous combination of power-transfer clutch.
Description of drawings
Fig. 1 is the decomposition diagram of structure of main portion of structure member power-transfer clutch of the tape winding apparatus of expression the utility model embodiment.
Fig. 2 is the decomposition diagram of structure of main portion of structure member power-transfer clutch of the tape winding apparatus of expression the utility model embodiment.
Fig. 3 is the section drawing of part-structure of structure member power-transfer clutch of the tape winding apparatus of expression the utility model embodiment.
Fig. 4 A is that securing rod remains on the lateral plan of the state on the slide block in the structure of power-transfer clutch of tape winding apparatus of expression the utility model embodiment.
Fig. 4 B is in the structure of power-transfer clutch of tape winding apparatus of expression the utility model embodiment, the lateral plan of the state of securing rod and ratchet engaged.
Fig. 5 A is that elastic claw makes the lateral plan of gear and rotor bonded assembly state in the structure of power-transfer clutch of tape winding apparatus of expression the utility model embodiment.
Fig. 5 B is in the structure of power-transfer clutch of tape winding apparatus of expression the utility model embodiment, the lateral plan of gear and the relative idling conditions of rotor.
Fig. 6 A is in the structure of power-transfer clutch of tape winding apparatus of expression the utility model embodiment, the lateral plan of securing rod and ratchet engaged state.
Fig. 6 B is in the structure of power-transfer clutch of tape winding apparatus of expression the utility model embodiment, and securing rod allows with respect to the rotor of the ratchet lateral plan to the counterrotating state of tape wrapping direction.
Fig. 7 A is in the structure of power-transfer clutch of tape winding apparatus of expression the utility model embodiment, the lateral plan of the state of securing rod and ratchet engaged.
Fig. 7 B is that securing rod remains on the lateral plan of the state on the slide block in the structure of power-transfer clutch of tape winding apparatus of expression the utility model embodiment.
Fig. 8 is the decomposition diagram of structure of circumferential component of the structure member motor of the expression tape winding apparatus that comprises the utility model embodiment.
Fig. 9 is the integrally-built decomposition diagram of the tape winding apparatus of expression the utility model embodiment.
Figure 10 is the transparent view of structure of main portion of the tape winding apparatus of expression the utility model embodiment.
Figure 11 is the integrally-built transparent view of the tape winding apparatus of expression the utility model embodiment.
Figure 12 is the integrally-built decomposition diagram of the tape winding apparatus of expression the utility model second embodiment.
Figure 13 is the transparent view of the structure of the structure member clutch-bell cover of tape winding apparatus of expression the utility model second embodiment and power-transfer clutch enclosing cover.
Figure 14 is the decomposition diagram of structure of main portion of structure member power-transfer clutch of the tape winding apparatus of expression the utility model second embodiment.
Figure 15 is the decomposition diagram of structure of main portion of structure member power-transfer clutch of the tape winding apparatus of expression the utility model second embodiment.
Figure 16 is the lateral plan of structure of structure member attaching screw, ratchet and packing ring of the tape winding apparatus of expression the utility model second embodiment.
Figure 17 is the lateral plan of the structure of the structure member rotor of tape winding apparatus of expression the utility model second embodiment and slide block.
Figure 18 is the section drawing of part-structure of structure member power-transfer clutch of the tape winding apparatus of expression the utility model second embodiment.
Figure 19 A is that securing rod remains on the lateral plan of the state on the slide block in the structure of power-transfer clutch of tape winding apparatus of expression the utility model second embodiment.
Figure 19 B is in the structure of power-transfer clutch of tape winding apparatus of expression the utility model second embodiment, the lateral plan of the state of securing rod and ratchet engaged.
Figure 20 is the lateral plan of the structure of the slide block of tape winding apparatus of expression the utility model second embodiment and securing rod.
Figure 21 A is that elastic claw makes the lateral plan of gear and rotor bonded assembly state in the structure of power-transfer clutch of tape winding apparatus of expression the utility model second embodiment.
Figure 21 B is in the structure of structure member power-transfer clutch of tape winding apparatus of expression the utility model second embodiment, the lateral plan of gear and the relative idling conditions of rotor.
Figure 22 is the lateral plan of the structure of the slide block of tape winding apparatus of expression the utility model second embodiment and pad.
Figure 23 is the decomposition diagram of the structure of the motor of tape winding apparatus of expression the utility model second embodiment and motor gear portion.
Figure 24 is the transparent view of the fixing structure of the assembling of the motor of tape winding apparatus of expression the utility model second embodiment and motor gear portion.
Figure 25 A is in the structure of power-transfer clutch of tape winding apparatus of expression the utility model second embodiment, the lateral plan of securing rod and ratchet engaged state.
Figure 25 B is in the structure of power-transfer clutch of tape winding apparatus of expression the utility model second embodiment, and securing rod allows with respect to the rotor of the ratchet lateral plan to the counterrotating state of tape wrapping direction.
Figure 26 A is in the structure of power-transfer clutch of tape winding apparatus of expression the utility model second embodiment, the lateral plan of the state of securing rod and ratchet engaged.
Figure 26 B is that securing rod remains on the lateral plan of the state on the slide block in the structure of power-transfer clutch of tape winding apparatus of expression the utility model second embodiment.
Figure 27 A is in the structure of power-transfer clutch of tape winding apparatus of expression the utility model second embodiment, and securing rod remains on the lateral plan with the locational state of the engagement releasing of ratchet.
Figure 27 B is in the structure of power-transfer clutch of tape winding apparatus of expression the utility model second embodiment, the lateral plan of the state of securing rod and ratchet engaged.
The specific embodiment
(first embodiment)
Figure 11 shows the integral structure of the tape winding apparatus 10 of the utility model first embodiment with transparent view.Figure 10 shows the structure of the major part of tape winding apparatus 10 with transparent view.Fig. 9 illustrates the integral structure of tape winding apparatus 10 with exploded perspective.
One distolateral stay bearing plate 18 ground that run through of spool 20 are given prominence to the outside of framework 12.Not shown lockout mechanism is arranged on the side of stay bearing plate 18.Lockout mechanism comprises acceleration pick-up, and links to each other at lockplate 22 between stay bearing plate 16 and the stay bearing plate 18 and the torsion bar 24 that is arranged on the axle core segment of spool 20 with frame.When vehicle emergency slowed down, by means of the action of lockout mechanism, the end by lockplate 22 constraint torsion bars 24 absorbed power, stops spool 20 to rotate to pull-out direction simultaneously.
On the other hand, distolateral to run through stay bearing plate 16 ground outstanding slightly to the outside of framework 12 for another of spool 20.It is coaxial and form integratedly another distolateral linking to each other with this spool 20 to form the attaching screw 21 of hexagonal column.
Formation is arranged on the outside of stay bearing plate 16 as the clutch-bell cover 101 of the housing of the power-transfer clutch 100 of present embodiment.This clutch-bell cover 101 forms the case shape by metallic material etc. (for example aluminum alloy etc.), and to the direction opening opposite with stay bearing plate 16.Be arranged on the open side of this clutch-bell cover 101 by the power-transfer clutch enclosing cover of making as iron plate of housing etc. 102.Above-mentioned clutch-bell cover 101 and power-transfer clutch enclosing cover 102 by screw 291 overall fixed on stay bearing plate 16.
Fig. 1 and Fig. 2 illustrate the structure of power-transfer clutch main part 114 with exploded perspective.
As depicted in figs. 1 and 2, power-transfer clutch main part 114 has gear 116.Gear 116 forms ring-type by resin material etc., and is provided with coaxially with spool 20, forms so-called worm-gear toothing 118 at its peripheral part.This worm-gear toothing 118 and above-mentioned worm gear 34 engagements.In the interior perimembranous of gear 116, radially form a plurality of (being 6 in the present embodiment) circumferentially load carrying part 120 along it at regular intervals.These circumferential load carrying parts 120 are corresponding with the elastic claw 182 of ring 176 described later.And then, on the end face of the side (the arrow A direction side of Fig. 1 and Fig. 2) of the axis direction of gear 116, circumferentially form a plurality of (being 6 in the present embodiment) rotation stopper recess 122 along it at regular intervals.These rotation stopper recess 122 are corresponding with the spline pawl 180 of ring 176 described later.
Form the inboard that discoid rotor 124 and gear 116 are arranged on gear 116 coaxially by (for example zinc, aluminum alloys etc.) such as metallic materials.Rotor 124 includes the main part 126 of round-ended cylinder shape, in axis direction one side (the arrow B direction side of Fig. 1 and Fig. 2) of main part 126 to radially outstanding flange portion 128.
At the peripheral part of main part 126, circumferentially form a plurality of external tooths 130 equally spacedly along it.Each external tooth 130 forms along the peripheral, oblique ground of the relative main part 126 of sidewall of the circumferential side (direction of the arrow C among Fig. 1 and Fig. 2) of main part 126, and the radial parallel ground along the sidewall of the circumferential opposite side (direction of arrow D among Fig. 1 and Fig. 2) of main part 126 along main part 126 forms (in other words, cross sectional shape is trapezoidal).Each external tooth 130 is corresponding with the elastic claw 182 of ring 176 described later.
Forming roughly by iron plate etc., the ratchet 134 of ring-type is contained in the accommodation section 132 of this main part 126.Peripheral part at ratchet 134 forms so-called hook tooth, and promptly external tooth 136.Axle core formation cross section at ratchet 134 is a hexagonal through hole (connecting bore) 138, under the state that aforementioned attaching screw 21 runs through, and its axis whole (can not relatively rotate) connection rotatably relatively.Thus, ratchet 134 can rotate by attaching screw 21 integratedly with spool 20.
In addition, a side of ratchet 134 axis directions (the arrow B direction among Fig. 1 and Fig. 2) contacts aforementioned lining ring 112 slidably.The packing ring of being made by resin material etc. 140 is installed in the opposite side (the arrow A direction among Fig. 1 and Fig. 2) of ratchet 134 axis directions.This packing ring 140 contacts the ring-type diapire of accommodation section 132 slidably, thus, can limit along the displacement of ratchet 134 axis directions.
On the other hand, 132 the radial outside in the accommodation section is formed on the diapire of main part 126 along a pair of pilot hole 142 of the circumferential skewing of main part 126.The circumferential skewing of being made by resin material etc. along main part 126 becomes roughly block slide block 144 to be slidably mounted in each pilot hole 142 respectively.Above-mentioned a pair of slide block 144 is fixed (guiding) by the outer peripheral face of the inner peripheral surface of main part 126 and accommodation section 132, and this slide block 144 is along relatively moving with respect to main part 126 (rotor 124) in the preset range of pilot hole 142.
Therefore, under the effect of the elastic force of locking plate 148, the slide 146 of slide block 144 is pushed down power-transfer clutch enclosing cover 102, and slide block 144 is applied predetermined friction force along move (rotor 124 relatively moves relatively) of pilot hole 142.Therefore, in case rotor 124 rotations, friction force by means of the length direction both ends that act on slide 146 and locking plate 148, slide block 144 temporarily is fixed on the housing (clutch-bell cover 101 and power-transfer clutch enclosing cover 102), and relatively rotor 124 can be along relatively moving in the preset range of pilot hole 142.
Each securing rod 154 forms roughly く font by iron plate etc., is arranged on the distolateral of each slide block 144 bending direction, and has the bearing portion 156 of ring-type.The cylindric pivot shaft 158 that each bearing portion 156 is darted on the diapire of main part 126 can support with rotating freely.The side (arrow C direction in Fig. 1 and Fig. 2) opposite that connecting strap 160 is darted at each bearing portion 156 with slide block 144.Around pivot shaft 158 rotations, its leading section runs through the hole portion 162 on the accommodation section 132 that is formed on rotor 124 to this connecting strap 160 with bearing portion 156, with external tooth 136 engagements of aforementioned ratchet 134.And the application force of distortion disc spring 164 is always pushed above-mentioned connecting strap 160 to and external tooth 136 (ratchet 134) ingear direction.In addition, the cylindric pivot shaft 166 that is darted on the diapire of main part 126 of rotor 124 supports these distortion disc springs 164.
Be darted at slide block 144 sides (the arrow D direction among Fig. 1 and Fig. 2) of each bearing portion 156 with aforementioned pressurization retention tab 145 corresponding releasing sheets 168.Each end relative with slide block 144 of removing sheet 168 constitutes moving direction (arrow C direction among Fig. 1 and Fig. 2 and arrow D direction) the bevelled dip plane of relative slide block 144.
Shown in Fig. 4 A and Fig. 4 B, rotor 124 relative slide blocks 144 relatively move, cause securing rod 154 relative to slide block 144 move and in preset range near or away from, under the state (state Fig. 4 A shown in) of securing rod 154 near slide block 144, the releasing sheet 168 of securing rod 154 enters the inboard (ratchet 134 sides) of the pressurization retention tab 145 of slide block 144, the thrust of opposing distortion disc spring 164 remains in conjunction with removing the position.Under this state, the connecting strap 160 of securing rod 154 separates with ratchet 134.
On the other hand, under the state that securing rod 154 separates with slide block 144 (state shown in Fig. 4 B), the stopping of releasing sheet 168 of 145 pairs of securing rods 154 of pressurization retention tab of slide block 144 removed.Under this state, the thrust of distortion disc spring 164 makes the connecting strap 160 of securing rod 154 move to ratchet 134 sides (binding site), its leading section and external tooth 136 engagements.
In addition, in the power-transfer clutch main part 114 of present embodiment, slide block 144 common approach locking bar 154 ground settings.And ordinary solution removes sheet 168 and is blocked by the pressurization retention tab 145 of slide block 144, thereby securing rod 154 is maintained in conjunction with removing position (state shown in Fig. 4 A).
On the other hand, the support 170 that forms ring-type by resin material etc. is arranged on a side (arrow A direction in Fig. 1 and Fig. 2) opposite with rotor 124 across securing rod 154.Support 170 has the main part 172 of ring-type and is arranged on a pair of maintenance pawl 174 on main part 172 peripheral parts.154 displacements of relative pivot shaft 158 (rotor 124) on axis direction of main part 172 restriction securing rods, 164 displacements of relative pivot shaft 166 (rotor 124) on axis direction of a pair of maintenance pawl 174 restriction distortion disc springs.
The support axial region 133 of rotor 124 runs through the circular hole 173 of the central portion that is formed on main part 172.Be arranged on the peritreme portion of this circular hole 173 to the outstanding cylindricly slightly rotary supporting part 175 of a side (power-transfer clutch enclosing cover 102 sides) opposite with rotor 124, the support axial region 133 of rotor 124 can be supported in the circular hole 135 of power-transfer clutch enclosing cover 102 by this rotary supporting part 175 with rotating freely.
On the other hand, be arranged on axis direction one side (the arrow A direction among Fig. 1 and Fig. 2) of the radial outside and the rotor 124 of support 170 by rubber-like metallic material (for example SUS etc.) ring of making 176.Ring 176 has the outer cap 178 that forms ring-type.On the peripheral part of outer cap 178, integrally form to outstanding a plurality of (being 6 in the present embodiment) the spline pawl 180 of its radial outside.These spline pawls 180 mesh with the rotation stopper recess 122 of aforesaid gears 116.Thus, ring 176 relative gears 116 upwards connected integratedly in its week.
And then, by form narrower tabular a plurality of (present embodiment the is 6) elastic claw 182 of rubber-like width along outer cap 178 circumferentially, whole at regular intervals being arranged on the peripheral part of outer cap 178.The base end part of each elastic claw 182 and 178 whole connections of outer cap, the pars intermedia of its length direction bends slightly to the radially inner side of outer cap 178, and its leading section is to the radial outside bending of outer cap 178, and its integral body is along the circumferential skewing of outer cap 178.
Shown in Fig. 5 A, between the inner peripheral surface of the external tooth 130 of rotor 124 and gear 116, along rotor 124 and gear 116 these elastic claws 182 circumferentially are set, the elastic force of himself is pushed its inside part to the external tooth 130 of rotor 124.Thus, encircling 176 integral body remains on the rotor 124.
The Outboard Sections of each elastic claw 182 is connected with the inner peripheral surface of gear 116 respectively, and gear 116 is supported on the rotor 124 by each elastic claw 182.Under this state, the spline pawl 180 of ring 176 and the flange portion 128 of rotor 124 have limited gear 116 moving at axis direction.Under this state, the outer cap 178 of ring 176 can prevent that limited slip block 144, securing rod 154, distortion disc spring 164 and support 170 come off from rotor 124, thereby the said structure parts remain on predetermined assembling position.
The leading section of each elastic claw 182 enters the wheel well of external tooth 130 respectively, a sidewall (forming the sidewall of a side along the radial parallel of main part 126) of contact external tooth 130, the circumferential load carrying part 120 of each base end part contact aforesaid gears 116.Thus, each elastic claw 182 makes 124 relative its circumferentially whole connections (rotation is restricted relatively) of gear 116 and rotor, thereby during gear 116 rotations, gear 116 and rotor 124 one rotation basically.
At this moment, gear 116 is delivered to the base end part of elastic claw 182 by circumferential load carrying part 120 to the rotational force of coiling direction, be delivered to the external tooth 130 of rotor 124 again from the leading section of elastic claw 182, gear 116 by circumferential load carrying part 120 along the load (gear 116 bears from the direction of the load of elastic claw 182 and sets along its hand of rotation) that circumferentially bears from elastic claw 182.
This moment as mentioned above, because elastic claw 182 is rubber-like sheetmetals, resist the elastic force (thrust) of elastic claw 182 by the rotational force that relative rotation produced of gear 116 relative rotors 124, if its size is enough extracted the leading section of each elastic claw 182 from the wheel well of external tooth 130, then elastic claw 182 can be removed gear 116 and the be connected power of rotor 124 around axis, thereby gear 116 can rotate (with reference to Fig. 5 B) relatively with rotor 124.
On the other hand, the pad 184 that forms ring-type by resin material etc. the side (arrow A direction in Fig. 1 and Fig. 2) opposite that be arranged on ring 176 with rotor 124.Pad 184 is clipped between ring 176 and the power-transfer clutch enclosing cover 102, and this pad 184 ring 176 relatively can not rotate relatively around its axis.This pad 184 can prevent that metal ring 176 from directly sliding with power-transfer clutch enclosing cover 102, makes the relative power-transfer clutch enclosing cover 102 of ring 176 (power-transfer clutch main parts 114) rotate relatively smoothly.
In the power-transfer clutch 100 of said structure, worm gear 34 rotations of clutch gear portion 28, then gear 116 rotations of power-transfer clutch main part 114, this power-transfer clutch main part 114 and clutch gear portion 28 overall package are in a housing (clutch-bell cover 101 and power-transfer clutch enclosing cover 102), and integral body forms an element.
On the other hand, as shown in Figure 9, spring assembly 42 is arranged on a side of power-transfer clutch enclosing cover 102.The disc spring (not shown) is equipped with in these spring assembly 42 inside.The end in the hand of spiral outside of this disc spring is connected with housing body, and the end of hand of spiral inboard links to each other with the front end of the attaching screw 21 that runs through power-transfer clutch main part 114 simultaneously, applies application force to spool 20, makes it towards coiling direction.
On the other hand, motor 44 and motor gear portion 46 are arranged between the stay bearing plate 16 and stay bearing plate 18 of spool 20 belows.
Fig. 8 illustrates the structure of this motor 44 and motor gear portion 46 with exploded perspective.
Herein, first recess 64 is arranged on the motor case 58, and the protuberance 66 that can embed in first recess 64 is arranged on the pedestal 54 accordingly with this first recess 64.And then, can be arranged on accordingly on the aforementioned motor 44 for second recess 68 of protuberance 66 embeddings and the protuberance 66 of pedestal 54.
Promptly, protuberance 66 is embedded second recess 68, make motor 44 relative pedestals 54 location, simultaneously protuberance 66 is embedded first recess 64, make pedestal 54 relative motor cases 58 location, and claw 60 engagement is buckled buckling on the projection 62, motor case 58 is fixedly mounted on the enclosing cover 48, thereby determine installation site uniquely around the axle of motor 44 with respect to enclosing cover 48.
And then, being used for the backboard 14 of the electric wiring 52 of CD-ROM drive motor towards the framework 12 opposite with the outgoing side of motor 44, can from the rear end part of motor case 58, take out.The taking-up of the electric wiring 52 of this motor case 58 partly adopts serum cap to come waterproof.
On the other hand, the miniature gears 72 that constitutes a plurality of flat gears of motor gear portion 46 is installed in the front end of the S. A. 50 of the outstanding motor 44 of opposite side (motor gear portion 46 sides) to enclosing cover 48.The gear 74 and the gear 76 of the flat gear of each self-forming external tooth and formation propulsive effort transmission mechanism are contained in the motor gear portion 46 under intermeshing state.Said gear 74, gear 76 are together with the axle of self the state setting parallel with the S. A. 50 of motor 44, gear 74 and miniature gears 72 engagements, the gear 76 that finally forms flat gear can connect or disengageably outwards be connected an end of outstanding worm gears 34 with clutch-bell cover 101 from aforementioned clutch gear portion 28.Therefore, in case CD-ROM drive motor 44, propulsive effort transmits by miniature gears 72, gear 74 and gear 76, causes worm gear 34 rotations.
The gear enclosing cover 78 that is installed on the enclosing cover 48 covers above-mentioned miniature gears 72, gear 74 and gear 76.Claw 80 is arranged on the gear enclosing cover 78, and this claw 80 is connected with a joggle with the buckle hanging unit 82 that is arranged on the enclosing cover 48, thereby gear enclosing cover 78 is fixed on the enclosing cover 48.
Like this, motor 44 all is assembled in the same enclosing cover 48 integratedly with motor gear portion 46, element of whole formation.
In the motor 44 and motor gear portion 46 of said structure, the installation stay 84 that is arranged on integratedly in the enclosing cover 48 releasably is installed on the clutch-bell cover 101 (being framework 12) that holds power-transfer clutch main part 114 and clutch gear portion 28 by screw 86.This enclosing cover 48 is installed under the state on the clutch-bell cover 101 (framework 12), the S. A. 50 of motor 44 is vertical with spool 20, and its outgoing side is towards a side opposite with the backboard 14 of framework 12, and motor 44 is below the spool 20 between a pair of stay bearing plate 16 and the stay bearing plate 18.
Herein, in the motor 44 and motor gear portion 46 of aforementioned structure, the gear 76 that constitutes the final flat gear of motor gear portion 46 is connected separably with the worm gear 34 of power-transfer clutch 26 and clutch gear portion 28, and owing to installation stay 84 releasably is installed on the clutch-bell cover 101 by screw 86, therefore take off screw 86, stay 84 will be installed unload from clutch-bell cover 101, motor 44 and motor gear portion 46 can keep confined state ground to get off from the last independent separate of clutch-bell cover 101 (framework 12).
And then for example said motor 44 can be carried out action based on the detection signal of the place ahead monitor unit etc.
The following describes the operation of present embodiment.
Shown in Fig. 4 A, in the tape winding apparatus 10 of said structure, the slide block 144 common approach locking bars 154 of power-transfer clutch main part 114 are provided with.Thereby the releasing sheet 168 of securing rod 154 is blocked by the pressurization retention tab 145 of slide block 144 usually, and the connecting strap 160 of securing rod 154 separates with the external tooth 136 of ratchet 134.Therefore, ratchet 134 (spool 20) rotor 124 rotation relatively freely relatively.
The passenger is sitting on the seat of vehicle, if the band in this tape winding apparatus 10 is left in stretching in, spool 20 is to the pull-out direction rotation, and band is drawn out simultaneously.Thus, the passenger ties up to band on the health, engages with buckle device by for example making setting tongue tray on tape, band can be worn on the health.
On the other hand, for example in vehicle is advanced, if there is obstacle in vehicle front, and the interval between vehicle and the obstacle (distance from the vehicle to the obstacle) then begin CD-ROM drive motor 44 in preset range, and S. A. 50 rotates rapidly.
In case S. A. 50 rotations of this motor 44, its rotational force is by the worm gear 34 of miniature gears 72, gear 74, gear 76 and the clutch gear portion 28 of motor gear portion 46, pass to the gear 116 of power-transfer clutch main part 114, gear 116 rotates rapidly to coiling direction.Gear 116 is delivered to the base end part of the elastic claw 182 of ring 176 to the rotation of coiling direction by circumferential load carrying part 120, and the leading section from elastic claw 182 is delivered on the external tooth 130 of rotor 124 again, thereby rotor 124 rotates hastily to coiling direction.
At this moment, because the friction force that acts on slide 146 and the locking plate 148 remains on the housing (clutch-bell cover 101 and power-transfer clutch enclosing cover 102) slide block 144, therefore rotor 124 relative slide blocks 144 relatively move in preset range, are supported on securing rod 154 on the rotor 124 and leave slide block 144 ground and move.
Therefore, 145 pairs of pressurization retention tabs are removed stopping of sheet 168 and have been removed, under the thrust of distortion disc spring 164, the connecting strap 160 of securing rod 154 is to ratchet 134 side shiftings, and the external tooth 136 of the leading section of connecting strap 160 and ratchet 134 meshes (with reference to the arrow E of Fig. 4 B).Thus, rotor 124 passes to ratchet 134 to the rotation of coiling direction by securing rod 154, and ratchet 134 rotates rapidly to coiling direction.Because this ratchet 134 is connected integratedly with spool 20, so spool 20 rotates to coiling direction rapidly with ratchet 134.
Thus, band is wound onto on the spool 20, the some slack of band, promptly so-called " easy fit " eliminated, improved the constrained force of band to passenger's body, if after this passenger carries out emergency brake of vehicle (sudden stop) operation, even vehicle is in urgent deceleration regime, band also can be really fixing passenger's health.
And then, under the above-mentioned state of eliminating " easy fit ", can not harm passenger's health, can not cross tightly tape wrapping on spool 20.Therefore, if band will surpass the load effect of predetermined value on spool 20, the result acts on the rotor 124 by ratchet 134 and securing rod 154 above the loading of predetermined value.If the load effect that surpasses predetermined value is on rotor 124, then shown in Fig. 5 A and Fig. 5 B, elastic deformation takes place in elastic claw 182, each leading section of elastic claw 182 is extracted from the wheel well of the external tooth 130 of rotor 124, gear 116 can dally relatively with rotor 124 (so-called " load suppression gear mechanism ", with reference to the arrow F of Fig. 5 B).
Thus, the propulsive effort that can prevent motor 44 with excessive power by ratchet 134 and securing rod 154 make with rotor 124 bonded assembly spools 20 to the coiling direction rotation, can prevent with health with excessive power constraint passenger.
And under this state, because the external tooth 136 of ratchet 134 forms so-called hook tooth, therefore shown in Fig. 6 A and Fig. 6 B, ratchet 134 (spool 20) is rotor 124 (with reference to arrow H of Fig. 6 B) when coiling direction rotates relatively relatively, securing rod 154 jumps on the external tooth 136 of ratchet 134 (with reference to the arrow G of Fig. 6 B), allows ratchet 134 (spool 20) to rotate relatively to coiling direction with respect to rotor 124.Thus, under the above-mentioned state of eliminating " easy fit ", for example collide under the unavoidable situation at vehicle, other pre-tensioning device etc. can make spool 20 forcibly rotate to coiling direction.At this moment, can further improve the constrained force of band to passenger's body, the injury to the passenger in the time of vehicle can being collided is reduced to bottom line.
On the other hand, avoid that above-mentioned vehicle collides dangerous the time, the S. A. 50 of motor 44 can reverse.The rotational force of this S. A. 50 is by the worm gear 34 of miniature gears 72, gear 74, gear 76 and the clutch gear portion 28 of motor gear portion 46, be delivered to the gear 116 of power-transfer clutch main part 114, make gear 116 rotate (with reference to the arrow D of Fig. 7 A) rapidly to pull-out direction.
At this moment, because the friction force that acts on slide 146 and the locking plate 148 remains on the housing (clutch-bell cover 101 and power-transfer clutch enclosing cover 102) slide block 144, therefore rotor 124 relative slide blocks 114 relatively move in preset range, and the securing rod 154 that is supported on the rotor 124 moves near slide block 144 ground.
Therefore, the pressurization retention tab 145 of slide block 144 is pushed down the inclined end face of the releasing sheet 168 of securing rod 154, remove the thrust of 168 pairs of anti-twist disc springs 164 of sheet and to ratchet 134 side shiftings (with reference to the arrow J of Fig. 7 B), the connecting strap 160 of securing rod 154 separates with the external tooth 136 of ratchet 134.And, in case securing rod 154 near slide block 144, the releasing sheet 168 of securing rod 154 enters the inboard (ratchet 134 sides) of the pressurization retention tab 145 of slide block 144, securing rod 154 is maintained in conjunction with removing position (state shown in Fig. 7 B).Thus, rotor 124 can rotate relatively once more with ratchet 134, and spool 20 can rotate freely.
Herein, the power-transfer clutch 100 of this tape winding apparatus 10 adopts simple structure, promptly, friction force remains on the housing (clutch-bell cover 101 and power-transfer clutch enclosing cover 102) slide block 144 of above-mentioned power-transfer clutch main part 114, slide block 144 and securing rod 154 are relatively moved, and this relatively moves and makes securing rod 154 move to the position that combines with ratchet 134 or in conjunction with the position of removing.And, compare with the structure that the such employing inertia disk large-scale and that weight is big of former power-transfer clutch moves ratchet, the integral structure of power-transfer clutch 100 miniaturization significantly (particularly attenuation) can make the integral structure of tape winding apparatus 10 compact more thus.
And in the power-transfer clutch 100 of this tape winding apparatus 10, power-transfer clutch main part 114 is not to be supported on the spool 20, but is supported on the housing (clutch-bell cover 101 and power-transfer clutch enclosing cover 102).Promptly, be arranged on support axial region 133 rotary supporting part 175 by support 170 of axis direction one side of the accommodation section 132 of rotor 124, can be supported in the circular hole 135 of power-transfer clutch enclosing cover 102 with rotating freely, simultaneously, the axis direction opposite side of accommodation section 132 can be supported on the clutch-bell cover 101 by lining ring 112 with rotating freely, thereby power-transfer clutch main part 114 can be supported on the housing (clutch-bell cover 101 and power-transfer clutch enclosing cover 102) with rotating freely.Thereby in this tape winding apparatus 10, except securing rod 154 made rotor 124 and ratchet 134 (spool 20) bonded assembly state situations such as () vehicle emergency decelerations, spool 20 power-transfer clutch main part 114 relatively rotated independently.Thus, can guarantee the level and smooth rotation of spool 20, improve the performance of pulling out and reel of band when using usually.
And, in the power-transfer clutch 100 of this tape winding apparatus 10, circumferential load carrying part 120 is set on the gear 116 of power-transfer clutch main part 114, when rotor 124 transmitted the rotational force of coiling direction, the load that acts on the gear 116 from elastic claw 182 circumferentially acted on along gear 116 by this circumferential load carrying part 120 from gear 116.Therefore, when estimate transmitting above-mentioned rotational force from elastic claw 182 along gear the load of 116 radial effect, need not to improve the rigidity of gear 116.
And in this power-transfer clutch 100, elastic claw 182 acts on load on the rotor 124 when surpassing predetermined value, and elastic deformations take place elastic claw 182, and its leading section is extracted from the external tooth of rotor, cuts off the transmission of rotating between gear 116 and the rotor 124.That is, the action of aforementioned " load suppression gear mechanism " is carried out between rotor 124 and elastic claw 182, and this moment, load did not radially act on the gear 116.For this point, also need not to improve the rigidity of gear 116.Thereby in this power-transfer clutch 100, available thin-walled formative gear 116 perhaps with formation such as resins, can make power-transfer clutch 100 miniaturizations, in light weight thus.
And then, in the power-transfer clutch 100 of this tape winding apparatus 10, the ring 176 of power-transfer clutch main part 114 has the elastic claw 182 that makes gear 116, slide block 144, securing rod 154, distortion disc spring 164 and support 170 remain on the outer cap 178 on the predetermined assembling position and be used as above-mentioned " load suppression gear mechanism " integratedly.And the elastic force of elastic claw 182 remains on the rotor 124 this ring 176 integratedly.Promptly, in this power-transfer clutch main part 114, gear 116, slide block 144, securing rod 154, distortion disc spring 164 and support 170 are assemblied on the predetermined assembling position, the elastic force of elastic claw 182 remains on the rotor 124 ring 176 simultaneously, thereby can make each structure member of above-mentioned power-transfer clutch temporarily keep one (half assemblingization).Thus, the assembling when packing into power-transfer clutch main part 114 in the housing (clutch-bell cover 101 and power-transfer clutch enclosing cover 102) promotes significantly, can improve the production performance of tape winding apparatus 10.
As mentioned above, the tape winding apparatus 10 of present embodiment not only utilizes power-transfer clutch 100 only the rotation from motor 44 sides to be passed to spool 20, also can form compact design simply.
In addition, in the foregoing description, power-transfer clutch 100 passes to spool 20 with the rotation of the S. A. 50 of motor 44, spool 20 is rotated to the tape wrapping direction, but be not limited to this, also can utilize power-transfer clutch that the rotation of the S. A. 50 of motor 44 is passed to spool 20, make spool 20 to the rotation of band pull-out direction.
(second embodiment)
Because the integral structure of the tape winding apparatus 210 of the utility model second embodiment is identical with Figure 11 of aforementioned first embodiment, therefore omit diagram.And the structure of the main portion of the tape winding apparatus 210 also Figure 10 with first embodiment is identical, therefore no longer illustrates.Figure 12 illustrates the integral structure of the tape winding apparatus 210 of present embodiment with exploded perspective.
One distolateral stay bearing plate 218 ground that run through of spool 220 are given prominence to the outside of framework 212.Not shown lockout mechanism is arranged on the side of stay bearing plate 218.Lockout mechanism comprises acceleration pick-up, and links to each other at lockplate 222 between stay bearing plate 216 and the stay bearing plate 218 and the torsion bar 224 that is arranged on the axle core segment of spool 220 with frame.When vehicle emergency slowed down, by means of the action of lockout mechanism, the end by lockplate 222 constraint torsion bars 224 absorbed power, stops spool 220 to rotate to pull-out direction simultaneously.
On the other hand, distolateral to run through stay bearing plate 216 ground outstanding slightly to the outside of framework 212 for another of spool 220.It is coaxial and form integratedly another distolateral linking to each other with this spool 220 to form the attaching screw 221 of hexagonal column.
Formation is arranged on the outside of stay bearing plate 216 as the clutch-bell cover 201 of the housing of the power-transfer clutch 293 of second embodiment.This clutch-bell cover 201 forms the case shape of essentially rectangular by metallic material etc. (for example aluminum alloy etc.), and to the direction opening opposite with stay bearing plate 216.Form the tabular open side that is arranged on this clutch-bell cover 201 as the power-transfer clutch enclosing cover 290 of housing of essentially rectangular by metallic material etc. (for example iron etc.).
As shown in figure 13, buckling pawl 200 to outstanding 2 of thickness of slab direction is arranged on the power-transfer clutch enclosing cover 290.These 2 buckle pawl 200 and are arranged on the position that roughly becomes the diagonal angle in the orthogonal end face (end face in left side and the end face of downside among Figure 13) of power-transfer clutch enclosing cover 290, form the through hole 202 of rectangle respectively at middle body separately.And, on the sidewall of clutch-bell cover 201, with 2 of power-transfer clutch enclosing cover 290 buckle form respectively on the pawl 200 corresponding positions can be with buckling pawl 200 guide part 204 of chimeric groove shape, in above-mentioned guide part 204 with on the through hole 202 corresponding positions that buckle pawl 200, be provided with and combine projection 206 as the joint portion.
Thus, import respectively in the guide part 204 of clutch-bell cover 201 respectively buckling pawl 200, make power-transfer clutch enclosing cover 290 location, simultaneously will be in conjunction with projection 206 chimeric buckling in the through hole 202, thus power-transfer clutch enclosing cover 290 is installed in the open side (temporary transient fixing) of clutch-bell cover 201.
Above-mentioned clutch-bell cover 201 and power-transfer clutch enclosing cover 290 by screw 291 overall fixed on stay bearing plate 216.
On the other hand, as shown in figure 12, manhole 294 and spool 220 are formed on the middle body of clutch-bell cover 201 diapires coaxially, and attaching screw 221 runs through the middle body of these clutch-bell cover 201 diapires.And the peripheral position of this through hole 294 is outstanding slightly circularly to the direction opposite with stay bearing plate 216, forms the sliding surface 208 of ring-type.And then the cylindric lining ring support sector 210 outstanding to the direction opposite with stay bearing plate 216 is formed in the peritreme portion of through hole 294.The lining ring 212 (with reference to Figure 14 and Figure 15) that is formed ring-type by resin material etc. is supported in this lining ring support sector 210.
Clutch gear portion 292 is arranged on the inside of clutch-bell cover 201.Clutch gear portion 292 has worm gear 234.The axle of worm gear 234 is set under the state vertical with spool 220, and the end of worm gear 234 is supported on the clutch-bell cover 201 by axle sleeve 236,237, and then one is distolateral outwards outstanding from clutch-bell cover 201.And, be contained in the leading section of the steel ball 238 contact worm gears 234 in the bearing portions of clutch-bell cover 201 of the leading section that supports worm gear 234, and then screw in set screw 240.The leading section of set screw 240 compresses steel ball 238, makes the front end crimping of steel ball 238 and worm gear 234.Thus, restriction worm gear 234 is at axial displacement (adjustment axial force).In addition, also steel ball 238 can be integrally formed in the leading section (leading section of set screw 240 is formed spherical structure) of set screw 240.The power-transfer clutch main part 214 that constitutes the power-transfer clutch 293 of second embodiment is arranged on the upside of this worm gear 234.
As Figure 14 and shown in Figure 15, power-transfer clutch main part 214 has the gear 216 that constitutes swivel.Gear 216 forms ring-type by resin material etc., and is provided with coaxially with spool 220, forms so-called worm-gear toothing 218 at its peripheral part.This worm-gear toothing 218 and above-mentioned worm gear 234 engagements.In the interior perimembranous of gear 216, radially form a plurality of (among second embodiment being 12) circumferentially load carrying part 220 along it at regular intervals.These circumferential load carrying parts 220 are corresponding with the elastic claw 282 of ring 276 described later.And then, on the end face of the side (the arrow A direction side of Figure 14 and Figure 15) of the axis direction of gear 216, circumferentially form a plurality of (among second embodiment being 6) rotation stopper recess 222 along it at regular intervals.These rotation stopper recess 222 are corresponding with the spline pawl 280 of ring 276 described later.
Form the rotor 224 of discoid and formation swivel and the inboard that gear 216 is arranged on gear 216 coaxially by (for example zinc, aluminum alloys etc.) such as metallic materials.Rotor 224 include the main part 226 of round-ended cylinder shape and in axis direction one side (the arrow B direction side of Figure 14 and Figure 15) of main part 226 to radially outstanding flange portion 228.
At the peripheral part of main part 226, circumferentially form a plurality of external tooths 230 equally spacedly along it.Each external tooth 230 forms along the peripheral, oblique ground of the relative main part 226 of sidewall of the circumferential side (direction of the arrow C among Figure 14 and Figure 15) of main part 226, and the radial parallel ground along the sidewall of the circumferential opposite side (direction of arrow D among Figure 14 and Figure 15) of main part 226 along main part 226 forms (in other words, cross sectional shape is trapezoidal).Each external tooth 230 is corresponding with the elastic claw 282 of ring 276 described later.
Forming roughly by iron plate etc., the ratchet 234 of ring-type is contained in the accommodation section 232 of this main part 226.Peripheral part at ratchet 234 forms so-called hook tooth, and promptly external tooth 236.Axle core formation cross section at ratchet 234 is hexagonal connecting bore 238, and aforementioned attaching screw 221 can not run through with the relative rotation.Thus, spool 220 can rotate by attaching screw 221 integratedly with ratchet 234.
The packing ring 209 that forms ring-type by resin material etc. is installed in a side (the arrow A direction among Figure 14 and Figure 15) of ratchet 234 axis directions integratedly.As shown in figure 16, a pair of claw 208 and a pair of columned rotation prevention portion 210 are arranged on ratchet 234 sides (inboard of the direction vertical with paper among Figure 16) of packing ring 209.A pair of claw 208 hooks a pair of groove 212 that buckles in the peritreme portion of the connecting bore 238 that is formed on ratchet 234, and thus, packing ring 209 can be installed on the ratchet 234 and (limit packing ring 209 relative to ratchet 234 moving along axis direction).And rotation prevention portion 210 embeds a pair of rotation stopper recess 214 on the end face that is formed on ratchet 234, has limited packing ring 209 relative to ratchet 234 moving radially (packing ring 209 being positioned on the desired location of ratchet 234).
Form the middle body of the opposite side (outside of the direction vertical among Figure 16) of hexagon barrel-contoured that be pressed into that portion 216 is arranged on packing ring 209 and ratchet 234 with paper.Be provided with in this is pressed into the tube of portion 216 to outstanding 2 of radially inner side and flatten ribs 218, attaching screw 221 is in the state that flattens above-mentioned flattening rib 218 is pushed down into the tube of the portion of being pressed into 216.Thus, it is loosening to prevent that ratchet 234 from producing with respect to attaching screw 221, and preventing to produce should loosening caused contact sound (loosening click).
In addition, the end face of the side (arrow A direction among Figure 14 and Figure 15) that packing ring 209 and ratchet 234 are opposite contacts the ring-type diapire of accommodation section 232 slidably, and the end face of the opposite side of the axis direction of ratchet 234 (arrow B direction side among Figure 14 and Figure 15) contacts aforementioned lining ring 212 slidably.
On the other hand, as shown in figure 17,232 the radial outside in the accommodation section is formed on along a pair of pilot hole 242 of the circumferential skewing of main part 226 on the diapire of main part 226 of rotor 224.The circumferential skewing of being made by resin material etc. along main part 226 becomes roughly block slide block 244 to be slidably mounted in each pilot hole 242 respectively.Above-mentioned a pair of slide block 244 is guided by the outer peripheral face of the inner peripheral surface of main part 226 and accommodation section 232, this slide block 244 is along relatively moving (no longer illustrate among Figure 17 in addition, securing rod 254 described later and distortion disc spring 264) in the preset range of pilot hole 242 with respect to main part 226 (rotor 224).
Therefore, under the effect of the elastic force of locking plate 248, the slide 246 of slide block 244 is pushed down power-transfer clutch enclosing cover 290, and slide block 244 is applied predetermined friction force along move (rotor 224 relatively moves relatively) of pilot hole 242.Therefore, in case rotor 224 rotations, friction force by means of the length direction both ends that act on slide 246 and locking plate 248, slide block 244 temporarily is fixed on the housing (clutch-bell cover 201 and power-transfer clutch enclosing cover 290), and relatively rotor 224 can be along relatively moving in the preset range of pilot hole 242.
Anticreep off-chip 247 is arranged on an end (end of arrow D direction side among Figure 14 and Figure 15) of each slide block 244 bending direction.And pressurization retention tab 245 is formed on the other end (end of the arrow C direction side among Figure 14 and Figure 15) of each slide block 244 bending direction.
Anticreep off-chip 247 and pressurization retention tab 245 tangle the peritreme portion of pilot hole 242, aforementioned slide 246 tangles accommodation section 232 simultaneously, (prevents that each slide block 244 from coming off by axis direction one side (the arrow B direction among Figure 14 and Figure 15) of each pilot hole 242 to rotor 224) thereby each slide block 244 is remained on the rotor 224.
Above-mentioned pressurization retention tab 245 is corresponding with pair of locking bar 254 respectively.Each securing rod 254 forms roughly く font by iron plate etc., is arranged on the distolateral of each slide block 244 bending direction, and has the bearing portion 256 of ring-type.The cylindric pivot shaft 258 that each bearing portion 256 is darted on the diapire of main part 226 can support with rotating freely.The side (arrow C direction in Figure 14 and Figure 15) opposite that connecting strap 260 is darted at each bearing portion 256 with slide block 244.Around pivot shaft 258 rotations, its leading section runs through the hole portion 262 on the accommodation section 232 that is formed on rotor 224 to this connecting strap 260 with bearing portion 256, with external tooth 236 engagements of aforementioned ratchet 234.And the application force of distortion disc spring 264 is always pushed above-mentioned connecting strap 260 to and external tooth 236 (ratchet 234) ingear direction.In addition, the cylindric pivot shaft 266 that is darted on the diapire of main part 226 of rotor 224 supports these distortion disc springs 264.
Be darted at slide block 244 sides (the arrow D direction among Figure 14 and Figure 15) of each bearing portion 256 with the pressurization retention tab 245 corresponding releasing sheets 268 of aforementioned slide block 244.Each end relative with slide block 244 of removing sheet 268 constitutes moving direction (arrow C direction among Figure 14 and Figure 15 and arrow D direction) the bevelled dip plane of relative slide block 244.
Shown in Figure 19 A and Figure 19 B, rotor 224 relative slide blocks 244 relatively move, cause securing rod 254 relative to slide block 244 move and in preset range near or away from, under the state (state Figure 19 A shown in) of securing rod 254 near slide block 244, the releasing sheet 268 of securing rod 254 enters the inboard (ratchet 234 sides) of the pressurization retention tab 245 of slide block 244, the thrust of opposing distortion disc spring 264 remains in conjunction with removing the position.Under this state, the connecting strap 260 of securing rod 254 separates with ratchet 234.
On the other hand, under the state that securing rod 254 separates with slide block 244 (state shown in Figure 19 B), the stopping of releasing sheet 268 of 245 pairs of securing rods 254 of pressurization retention tab of slide block 244 removed.Under this state, the thrust of distortion disc spring 264 makes the connecting strap 260 of securing rod 254 move to ratchet 234 sides (binding site), its leading section and external tooth 236 engagements.
Herein as shown in figure 20, relatively the following portion of digging of the moving direction of slide block (rotor 224 circumferentially) predetermined oblique angle (for example 10 degree) is formed on the pressurization retention tab 245 of slide block 244, and the surface with removing sheet 268 opposite sides of pressurization retention tab 245 constitutes the moving direction bevelled dip plane 249 of relative slide block 244.And, on the releasing sheet 268 of securing rod 254, forming down the portion of digging accordingly with the aforementioned down portion of digging of pressurization retention tab 245, the surface with retention tab 245 opposite sides that pressurize of releasing sheet 268 constitutes the moving direction bevelled dip plane 269 of relative slide block 244.
That is, pressurization retention tab 245 engages with scheduled volume (preliminary dimension) the d ground that radially only meshes of removing sheet 268 relative rotors 224.After this, when securing rod 254 separated with slide block 244, the dip plane 249 of pressurization retention tab 245 only makes removed sheet 268 to ratchet 234 side shifting scheduled volume d, and the thrust of 260 pairs of anti-twist disc springs 264 of connecting strap is to a side shifting scheduled volume opposite with ratchet 234.Thus, separate the predetermined resistance of generation in the moving process with slide block 244 at securing rod 254.But, set this resistance, make and length direction both ends that the elastic force owing to aforementioned locking plate 248 acts on this locking plate 248 and clutch-bell cover 201 between and the slide 246 that acts on slide block 244 compare with the friction force between the power-transfer clutch enclosing cover 290, this resistance is sufficiently little.
In addition, in the power-transfer clutch main part 214 of second embodiment, slide block 244 common approach locking bar 254 ground settings.Ordinary solution removes sheet 268 and is blocked by the pressurization retention tab 245 of slide block 244, thereby securing rod 254 is maintained in conjunction with removing position (state shown in Figure 19 A).
On the other hand, the support 270 that forms ring-type by resin material etc. is arranged on a side (arrow A direction in Figure 14 and Figure 15) opposite with rotor 224 across securing rod 254 ground.Support 270 has the main part 272 of ring-type and is arranged on a pair of maintenance pawl 274 on main part 272 peripheral parts.Main part 272 has limited securing rod 254 displacements of relative pivot shaft 258 (rotor 224) on axis direction, 264 displacements of relative pivot shaft 266 (rotor 224) on axis direction of a pair of maintenance pawl 274 restriction distortion disc springs.
The support axial region 233 of rotor 224 runs through the circular hole 273 of the central portion that is formed on main part 272.Be arranged on the peritreme portion of this circular hole 273 to the outstanding cylindricly slightly rotary supporting part 275 of a side (power-transfer clutch enclosing cover 290 sides) opposite with rotor 224, the support axial region 233 of rotor 224 can be supported in the circular hole 235 of power-transfer clutch enclosing cover 290 by this rotary supporting part 275 with rotating freely.
On the other hand, be arranged on axis direction one side (the arrow A direction among Figure 14 and Figure 15) of the radial outside and the rotor 224 of support 270 by rubber-like metallic material (for example SUS etc.) ring of making 276.Ring 276 has the outer cap 278 that forms ring-type.Integrally forming on the peripheral part of outer cap 278 to outstanding a plurality of (among second embodiment being 6) the spline pawl 280 of its radial outside.These spline pawls 280 mesh with the rotation stopper recess 222 of aforesaid gears 216.Thus, ring 276 relative gears 216 upwards connected integratedly in its week.
And then, rubber-like form narrower tabular a plurality of (second embodiment is 12) elastic claw 282 of width along outer cap 278 circumferentially, every predetermined space be arranged on the peripheral part of outer cap 278.The base end part of each elastic claw 282 and 278 whole connections of outer cap, the pars intermedia of its length direction bends slightly to the radially inner side of outer cap 278, and its leading section is to the radial outside bending of outer cap 278, and its integral body is along the circumferential skewing of outer cap 278.
Shown in Figure 21 A, between the inner peripheral surface of the external tooth 230 of rotor 224 and gear 216, along rotor 224 and gear 216 these elastic claws 282 circumferentially are set, the elastic force of himself is pushed its inside part to the external tooth 230 of rotor 224.Thus, encircling 276 integral body remains on the rotor 224.
The Outboard Sections of each elastic claw 282 is connected with the inner peripheral surface of gear 216 respectively, and gear 216 is supported on the rotor 224 by each elastic claw 282.Under this state, the spline pawl 280 of ring 276 and the flange portion 228 of rotor 224 have limited gear 216 moving at axis direction.Under this state, the outer cap 278 of ring 276 can prevent that limited slip block 244, securing rod 254, distortion disc spring 264 and support 270 come off from rotor 224, thereby the said structure parts are remained on the predetermined assembling position.
The leading section of each elastic claw 282 enters the wheel well of external tooth 230 respectively, a sidewall of contact external tooth 230 (forming the sidewall of side along the radial parallel of main part 226), the circumferential load carrying part 220 of each base end part contact aforesaid gears 216.Thus, each elastic claw 282 makes 224 relative its circumferentially whole connections (rotation is restricted relatively) of gear 216 and rotor, thereby during gear 216 rotations, gear 216 and rotor 224 one rotation basically.
At this moment, gear 216 is delivered to the base end part of elastic claw 282 by circumferential load carrying part 220 to the rotational force of coiling direction, be delivered to the external tooth 230 of rotor 224 again from the leading section of elastic claw 282, gear 216 by circumferential load carrying part 220 along circumferentially bearing load from elastic claw 282 (set gear 216, make it bear direction from the load of elastic claw 282) along its hand of rotation.
This moment as mentioned above, because elastic claw 282 is rubber-like sheetmetals, resist the elastic force (thrust) of elastic claw 282 by the rotational force that relative rotation produced of gear 216 relative rotors 224, if its size is enough extracted the leading section of each elastic claw 282 from the wheel well of external tooth 230, then elastic claw 282 can be removed gear 216 and the be connected power of rotor 224 around axis, cut off the rotation of transmitting between gear 216 and the rotor 224, make gear 216 can rotate (with reference to Figure 21 B) relatively with rotor 224.
In addition, the ring 276 among second embodiment has 12 elastic claws 282, but changes for example 6 or 8 into by the number with elastic claw 282, the load the when rotation between scalable cut-out gear 216 and the rotor 224 is transmitted.But change at this moment, the number of circumferential load carrying part 220 grades of gear 216 accordingly with the number of elastic claw 282.
And, by the width dimensions and the gauge of change elastic claw 282, and the depth dimensions of the wheel well of the external tooth 230 of change rotor 224 etc., the load in the time of also can regulating the rotation transmission of cutting off between gear 216 and the rotor 224.
On the other hand, the pad 284 that forms ring-type by resin material etc. the side (arrow A direction in Figure 14 and Figure 15) opposite that be arranged on ring 276 with rotor 224.Pad 284 is clipped between the outer cap 278 and power-transfer clutch enclosing cover 290 of ring 276.Be connected the interior perimembranous that pawl 224,226 is arranged on pad 284 to outstanding a pair of two groups of radially inner side accordingly with above-mentioned a pair of slide block 244.As shown in figure 22, a pair of connection pawl 224 and a pair of connection pawl 226 are clamped the slide 246 of each slide block 244 respectively with the both sides of its bending direction.Thus, connect a pair of slide block 244, make a pair of slide block 244 and pad 284 relative rotors 224 and securing rod 254 synchronously relatively move (rotating relatively) with pad 284.And this moment since with power-transfer clutch enclosing cover 290 moving contacts (slip), so friction force acts on the pad 284.
In addition, among second embodiment, a pair of slide block 244 constitutes respectively with pad 284, but is not limited to this, also can integrally constitute a pair of slide block 244 and pad 284.
In the power-transfer clutch 293 of said structure, worm gear 234 rotations of clutch gear portion 292, then gear 216 rotations of power-transfer clutch main part 214, this power-transfer clutch main part 214 and clutch gear portion 292 overall package are in a housing (clutch-bell cover 201 and power-transfer clutch enclosing cover 290), and integral body forms an element.
On the other hand, as shown in figure 12, spring assembly 242 is arranged on a side of power-transfer clutch enclosing cover 290.The disc spring (not shown) is equipped with in these spring assembly 242 inside.The end in the hand of spiral outside of this disc spring is connected with housing body, and the end of hand of spiral inboard links to each other with the front end of the attaching screw 221 that runs through power-transfer clutch main part 214 simultaneously, applies application force to spool 220, makes it towards coiling direction.
On the other hand, motor 244 and motor gear portion 246 are arranged between the stay bearing plate 216 and stay bearing plate 218 of spool 220 belows.
As shown in figure 23, motor 244 and motor gear portion 246 have enclosing cover 248.Motor 244 is installed in a side of this enclosing cover 248 by screw, and motor gear portion 246 is arranged on the opposite side of enclosing cover 248 simultaneously.Under the state of enclosing cover 248, motor 244 is fixed on a side of enclosing cover 248 in the front (outgoing side) of its S. A. 250, and the front end of S. A. 250 (outgoing side) is outstanding to the opposite side (motor gear portion 246 1 sides) of enclosing cover 248.
On the other hand, the periphery miniature gears 272 that has a flat tooth is installed in the front end of the S. A. of the outstanding motor 244 of opposite side (motor gear portion 246 sides) to enclosing cover 248.Gear 274 and gear 276 that external tooth separately forms flat tooth are contained in the motor gear portion 246 under intermeshing state.Said gear 274, gear 276 are together with self the state setting of axle with the rotating shaft parallel of motor 244, gear 274 and miniature gears 272 engagements, the gear 276 that finally forms flat gear can connect or disengageably with from aforementioned clutch-bell cover 201 outwards be connected an end of outstanding worm gear 234.Therefore, in case CD-ROM drive motor 244, propulsive effort transmits by miniature gears 272, gear 274 and gear 276, causes worm gear 234 rotations.
The gear enclosing cover 278 that is installed on the enclosing cover 248 covers above-mentioned miniature gears 272, gear 274 and gear 276.Claw 280 is arranged on the gear enclosing cover 278, and this claw 280 is connected with a joggle with the buckle hanging unit 282 that is arranged on the enclosing cover 248, thereby gear enclosing cover 278 is fixed on the enclosing cover 248.
Like this, motor 244 all is assembled in the same enclosing cover 248 integratedly with motor gear portion 246, element of whole formation.
As shown in figure 24, in the motor 244 and motor gear portion 246 of said structure, the installation stay 284 that is arranged on integratedly in the enclosing cover 248 releasably is installed on the clutch-bell cover 201 (being framework 212) that holds power-transfer clutch main part 214 and clutch gear portion 292 by screw.This enclosing cover 248 is installed under the state on the clutch-bell cover 201 (framework 212), the S. A. 250 of motor 244 is vertical with spool 220, and its outgoing side is towards a side opposite with the backboard 214 of framework 212, and motor 244 is below the spool 220 between a pair of stay bearing plate 216 and the stay bearing plate 218.
And then for example said motor 244 can be carried out action based on the detection signal of the place ahead monitor unit etc.
The following describes the operation of second embodiment.
Shown in Figure 19 A, in the tape winding apparatus 210 of said structure, the slide block 244 common approach locking bar 254 ground settings of power-transfer clutch main part 214.Thereby the releasing sheet 268 of securing rod 254 is blocked by the pressurization retention tab 245 of slide block 244 usually, and the connecting strap 260 of securing rod 254 separates with the external tooth 236 of ratchet 234.Therefore, ratchet 234 (spool 220) rotor 224 rotation relatively freely relatively.
The passenger is sitting on the seat of vehicle, if the band in this tape winding apparatus 210 is left in stretching in, then spool 220 is to the pull-out direction rotation, and band is drawn out simultaneously.Thus, the passenger ties up to band on the health, engages with buckle device by for example making setting tongue tray on tape, band can be worn on the health.
On the other hand, for example in vehicle is advanced, if there is obstacle in vehicle front, and the interval between vehicle and the obstacle (distance from the vehicle to the obstacle) reach in the preset range, then begins CD-ROM drive motor 244, and S. A. 250 rotates rapidly.
In case S. A. 250 rotations of this motor 244, its rotational force is by the worm gear 234 of miniature gears 272, gear 274, gear 276 and the clutch gear portion 292 of motor gear portion 246, pass to the gear 216 of power-transfer clutch main part 214, gear 216 rotates rapidly to coiling direction.Gear 216 is delivered to the base end part of the elastic claw 282 of ring 276 to the rotation of coiling direction by circumferential load carrying part 220, and the leading section from elastic claw 282 is delivered on the external tooth 230 of rotor 224 again, thereby rotor 224 rotates hastily to coiling direction.
At this moment, because the friction force that acts on slide 246 and the locking plate 248 remains on the housing (clutch-bell cover 201 and power-transfer clutch enclosing cover 290) slide block 244, therefore rotor 224 relative slide blocks 244 relatively move in preset range, are supported on securing rod 254 on the rotor 224 and leave slide block 244 ground and move.
Therefore, 245 pairs of pressurization retention tabs are removed stopping of sheet 268 and have been removed, under the thrust of distortion disc spring 264, the connecting strap 260 of securing rod 254 is to ratchet 234 side shiftings, and the external tooth 236 of the leading section of connecting strap 260 and ratchet 234 meshes (with reference to the arrow E of Figure 19 B).Thus, rotor 224 passes to ratchet 234 to the rotation of coiling direction by securing rod 254, and ratchet 234 rotates rapidly to coiling direction.Because this ratchet 234 is connected integratedly with spool 220, so spool 220 rotates to coiling direction rapidly with ratchet 234.
Thus, band is wound onto on the spool 220, the some slack of band, promptly so-called " easy fit " eliminated, improved the constrained force of band to passenger's body, if after this passenger carries out emergency brake of vehicle (sudden stop) operation, even vehicle is in urgent deceleration regime, band also can be really fixing passenger's health.
And then, under the above-mentioned state of eliminating " easy fit ", not harming passenger's health, can not cross tightly tape wrapping on spool 220.Therefore, if band will surpass the load effect of predetermined value on spool 220, the result acts on the rotor 224 by ratchet 234 and securing rod 254 above the loading (so-called " overload ") of predetermined value.If the load effect that surpasses predetermined value is on rotor 224, then shown in Figure 21 A and Figure 21 B, elastic deformation takes place in elastic claw 282, each leading section of elastic claw 282 is extracted from the wheel well of the external tooth 230 of rotor 224, gear 216 can dally relatively with rotor 224 (so-called " load suppression gear mechanism ", with reference to the arrow F of Figure 21 B).
Thus, can prevent that the propulsive effort of motor 244 from passing through ratchet 234 and securing rod 254 with excessive power, make with rotor 224 bonded assembly spools 220 and rotate, can prevent with health with excessive power constraint passenger to coiling direction.
And under this state, because the external tooth 236 of ratchet 234 forms so-called hook tooth, therefore shown in Figure 25 A and Figure 25 B, ratchet 234 (spool 220) is rotor 224 (with reference to arrow H of Figure 25 B) when coiling direction rotates relatively relatively, securing rod 254 jumps on the external tooth 236 of ratchet 234 (with reference to the arrow G of Figure 25 B), allows ratchet 234 (spool 220) to rotate relatively to coiling direction with respect to rotor 224.
Thus, under the above-mentioned state of eliminating " easy fit ", for example collide under the unavoidable situation at vehicle, other pre-tensioning device etc. can forcibly make spool 220 rotate to coiling direction.At this moment, can further improve the constrained force of band to passenger's body, the injury to the passenger in the time of vehicle can being collided is reduced to bottom line.
On the other hand, avoid that above-mentioned vehicle collides dangerous the time, the S. A. 250 of motor 244 can reverse.The rotational force of this S. A. 250 is by the worm gear 234 of miniature gears 272, gear 274, gear 276 and the clutch gear portion 292 of motor gear portion 246, be delivered to the gear 216 of power-transfer clutch main part 214, make gear 216 rotate (with reference to the arrow D of Figure 26 A) rapidly to pull-out direction.
At this moment, because the friction force that acts on slide 246 and the locking plate 248 remains on the housing (clutch-bell cover 201 and power-transfer clutch enclosing cover 290) slide block 244, therefore rotor 224 relative slide blocks 214 relatively move in preset range, and the securing rod 254 that is supported on the rotor 224 moves near slide block 244 ground.
Therefore, the pressurization retention tab 245 of slide block 244 is pushed down the inclined end face of the releasing sheet 268 of securing rod 254, remove the thrust of 268 pairs of anti-twist disc springs 264 of sheet and to ratchet 234 side shiftings (with reference to the arrow J of Figure 26 B), the connecting strap 260 of securing rod 254 separates with the external tooth 236 of ratchet 234.And, in case securing rod 254 near slide block 244, the releasing sheet 268 of securing rod 254 enters the inboard (ratchet 234 sides) of the pressurization retention tab 245 of slide block 244, securing rod 254 is maintained in conjunction with removing position (state shown in Figure 26 B).Thus, rotor 224 can rotate relatively once more with ratchet 234, and spool 220 can rotate freely.
Herein, in the power-transfer clutch main part 214 of this tape winding apparatus 210, the pressurization retention tab 245 of slide block 244 and the releasing sheet 268 of securing rod 254 are meshing with each other by dip plane 249 and dip plane 269, when slide block 244 leaves securing rod 254 ground and moves, produce predetermined resistance.Thereby, during vehicle strenuous vibration in for example advancing, 254 ground move even slide block 244 leaves securing rod, under the effect of above-mentioned predetermined resistance, can and remove being connected with a joggle of sheet 268 by pressurization retention tab 245 and stop and above-mentionedly separate mobilely, keep the pressurization retention tab 245 of slide block 244 and the engagement of the releasing sheet 268 of securing rod 254.Thus, can prevent to remove unexpectedly stopping of 244 pairs of securing rods 254 of slide block, prevent the erroneous combination of power-transfer clutch main part 214.
And then, in the power-transfer clutch main part 214 of this tape winding apparatus 210, pair of locking bar 254 is remained on and being connected by pad 284 in conjunction with removing locational a pair of slide block 244 of each ratchet 234, and keep synchronously.Thereby, even because for example vehicle strenuous vibration etc. causes a slide block 244 with respect to rotor 224 (securing rod 254) when relatively moving, as long as another slide block 244 and pad 284 do not relatively move with respect to rotor 224, just stopping of 244 pairs of securing rods 254 of a slide block can not removed.
That is, in this power-transfer clutch main part 214, as long as each slide block 244 and pad 284 do not relatively move simultaneously with respect to each securing rod 254, just stopping of 244 pairs of each securing rods 254 of each slide block can not removed.
And this moment, connect a pair of slide block 244 and make its synchronous pad 284 and these power-transfer clutch enclosing cover 290 moving contacts.Because friction force acts on the pad 284, therefore can prevent further that a pair of slide block 244 and pad 284 from relatively moving unexpectedly with respect to rotor 224 (being pair of locking bar 254), can prevent the erroneous combination of power-transfer clutch main part 214 really.
And, in the power-transfer clutch main part 214 of this tape winding apparatus 210, by for example will changing 6 or 8 etc. in the quantity that ring be provided with 12 elastic claw 282 in 276, the load (so-called " overload ") when scalable is cut off rotation transmission between gear 216 and the rotor 224.Thereby, can easily set this load.
And, in the power-transfer clutch main part 214 of this tape winding apparatus 210, coaxial and one bonded assembly attaching screw 221 can not run through the connecting bore 238 of ratchet 234 with the relative rotation with spool 220, and this screw 221 is pressed into the portion that is pressed into 216 of the packing ring 209 of integral installation on ratchet 234 simultaneously.Thereby it is loosening to prevent that ratchet 234 and attaching screw 221 from taking place, and avoids producing because the contact sound (loosening click) that should loosening cause.
And the portion that is pressed into 216 of packing ring 209 has the flattening rib 218 that is crushed owing to being pressed into of attaching screw 221.Thereby,, can easily regulate the load of attaching screw 221 when being pressed into portion 216 and being pressed into by size and the shape that changes this flattening rib 218.
And, in the power-transfer clutch 293 of this tape winding apparatus 210, hold in the clutch-bell cover 201 and power-transfer clutch enclosing cover 290 of power-transfer clutch main part 214 and clutch gear portion 292, to through hole 202 that outstanding 2 of the thickness of slab direction of power-transfer clutch enclosing cover 290 buckle pawl 200 respectively with the sidewall that is arranged on clutch-bell cover 201 on 2 in conjunction with 206 chimeric connections of projection, so that power-transfer clutch enclosing cover 290 is contained in the open side of clutch-bell cover 201.Thereby, when being contained in power-transfer clutch enclosing cover 290 on the clutch-bell cover 201, need not serviceable tool, can install easily and promptly by manual operations.
And this moment, on clutch-bell cover 201, be provided with buckling pawl 200 and making the guide part 204 of its location of pilot clutch enclosing cover 290.Thus, can further facilitate power-transfer clutch enclosing cover 290 is installed to fitting operation on the clutch-bell cover 201.
At this moment,, buckle pawl 200 and be entrenched in this guide part 204, when therefore being installed in power-transfer clutch enclosing cover 290 on the clutch-bell cover 201, can avoid respectively buckling the sidewall occurrence positions skew (dislocation) of pawl 200 along clutch-bell cover 201 because guide part 204 forms the groove shape.Thereby, as 2 desired locations that buckle pawl 200, need not to be set at the above-mentioned pawl 200 that buckles and clamp the position of clutch-bell cover 201 (for example end face on power-transfer clutch enclosing cover 290 right sides and the end face in left side among Figure 13), can as second embodiment, be arranged on the orthogonal end face (end face in left side and the end face of downside among Figure 13) of power-transfer clutch enclosing cover 290 buckling pawl 200.Can improve the setting degree of freedom of the position that buckles pawl 200 thus.
As mentioned above, the tape winding apparatus 210 of second embodiment can prevent the erroneous combination of power-transfer clutch main part 214.And, the load (so-called " overload ") in the time of can easily setting the rotation transmission of cutting off between gear 216 and the rotor 224.And then, can easily power-transfer clutch enclosing cover 290 be contained on the clutch-bell cover 201.And can prevent becoming flexible between ratchet 234 and the attaching screw 221, avoid producing loosening click.Load in the time of also can easily regulating attaching screw 221 and be pressed into packing ring 209.
In addition, in the power-transfer clutch main part 214 of above-mentioned second embodiment, the pressurization retention tab 245 of slide block 244 is provided with dip plane 249, the releasing sheet 268 of securing rod 254 is provided with and 249 corresponding dip plane 269, above-mentioned dip plane simultaneously, pressurization retention tab 245 is connected with a joggle with removing sheet 268, makes securing rod 254 separate and produce predetermined resistance when mobile with slide block.But be not limited to this, also can on the releasing sheet 268 of the pressurization retention tab 245 of slide block 244 and securing rod 254, projection be set all, two projections mesh are connected, make securing rod 254 separate and produce predetermined resistance when mobile with slide block.Can also apply the processing that improves friction force in pressurization retention tab 245 and the contact portion of removing sheet 268, produce predetermined resistance when mobile so that securing rod 254 separates with slide block.
And, in the tape winding apparatus 210 of above-mentioned second embodiment, the rotation of the S. A. 250 of motor 244 passes to spool 220 by power-transfer clutch 293, spool 220 is rotated to the tape wrapping direction, but be not limited to this, also can the rotation of the S. A. 250 of motor 244 be passed to spool 220, make spool 220 to the rotation of band pull-out direction by power-transfer clutch.This point also is identical in following the 3rd embodiment.
(the 3rd embodiment)
The following describes the 3rd embodiment of the present utility model.In addition, with the identical symbolic representation of the essentially identical structure of aforementioned second embodiment, this structure and effect are described no longer with aforementioned second embodiment.
Figure 27 A and Figure 27 B show the structure member of the tape winding apparatus of the utility model the 3rd embodiment, the i.e. part-structure of power-transfer clutch main part 390 with lateral plan.
Power-transfer clutch main part 390 forms essentially identical structure with the power-transfer clutch main part 214 of aforementioned second embodiment, but following some difference.
Power-transfer clutch main part 390 has slide block 391.This slide block 391 forms the slide block 244 essentially identical structures with aforementioned second embodiment, replaces aforementioned pressurization retention tab 245 but have press section 392.Form moving direction with respect to slide block 391 (rotor 324 circumferentially) bevelled dip plane 393 on this press section 392.
And side is provided with securing rod 394 in the press section 392 (dip plane 393) of slide block 391.This securing rod 394 is basic identical with the structure of the securing rod 254 of aforementioned second embodiment, but under the effect of distortion disc spring 364, and the releasing sheet 395 on the side opposite with slide block 391 that is darted at bearing portion 356 always is pushed to ratchet 334 sides.Therefore, the connecting strap 396 that is darted at slide block 391 sides of bearing portion 356 always is pushed to a side (in conjunction with remove direction) opposite with ratchet 334, and connecting strap 396 separates (state shown in Figure 27 A) usually with ratchet 334.
In this power-transfer clutch main part 390, in case rotor 324 rotates to coiling direction (the arrow C direction among Figure 27 B), the friction force that acts on slide 346 and locking plate 348 (not shown)s remains on clutch-bell cover 201 and the power-transfer clutch enclosing cover 290 (all not shown among the figure) slide block 391, therefore rotor 324 relative slide blocks 391 relatively move in predetermined scope, and the securing rod 394 that is supported on the rotor 324 moves near slide block 391 ground.If securing rod 394 moves near slide block 391 ground, then ratchet 334 sides are pressed to, external tooth 336 engagements (with reference to the arrow K of Figure 27 B) of the leading section of connecting strap 396 and ratchet 334 in the be pressed dip plane 393 of portion 392 of the connecting strap 396 of securing rod 394.
On the other hand, in case rotor 324 rotates to pull-out direction (the arrow D direction among Figure 27 A), the friction force that then acts on slide 346 and locking plate 348 (not shown)s remains on clutch-bell cover 201 and the power-transfer clutch enclosing cover 290 (all not shown among the figure) slide block 391, therefore rotor 324 relative slide blocks 391 relatively move in preset range, are supported on securing rod 394 on the rotor 324 and leave slide block 391 ground and move.In case securing rod 394 leaves slide block 391 ground and moves, then the pressure of the connecting strap 396 of the 393 pairs of securing rods 394 in dip plane of press section 392 has been removed, and the thrust of distortion disc spring 364 makes connecting strap 396 move to and remain on combining of ratchet 334 once more and removes position (with reference to the arrow L of Figure 27 A).
The power-transfer clutch main part 390 of said structure also plays the power-transfer clutch main part 214 essentially identical action effects with aforementioned second embodiment.
Particularly in this power-transfer clutch main part 390, distortion disc spring 364 is always pushed the connecting strap 396 of securing rod 394 to remove direction with combining of ratchet 334.Thereby, even during the vehicle generation strenuous vibration in for example advancing, the thrust of distortion disc spring 364 also can make the connecting strap 396 of securing rod 394 remain on slide block 334 combine the releasing position.Thus, can prevent that the connecting strap 396 of securing rod 394 from unexpectedly combining with ratchet 334, prevent the erroneous combination of power-transfer clutch main part 390.
Industrial applicibility
As mentioned above, tape winding apparatus of the present utility model can not only only will pass to spool from the rotation of motor-side by power-transfer clutch, and can form compact design simply.And tape winding apparatus of the present utility model can prevent the erroneous combination of power-transfer clutch.Thereby it utilizes scope extremely wide.
Claims (20)
1, a kind of tape winding apparatus, comprise spool, motor and power-transfer clutch, wherein said spool can be reeled or be twined the band that is used to fetter the passenger with pulling out, described clutch mechanism ground is between described motor and described spool, and the rotation of described motor passed to described spool, make the rotation of described spool, cut off the transmission of the rotation that described spool side produced simultaneously, pass to described motor to prevent described rotation;
It is characterized in that described power-transfer clutch comprises following parts:
Described relatively spool is provided with coaxially, transmits the rotation of described motor and the swivel that rotates;
Can described relatively swivel, the slide block that in preset range, relatively moves; With
Be arranged on the securing rod on the described swivel, described securing rod is remained on combining of described spool by described slide block usually and removes on the position, when described swivel centers on axis to a direction rotation, described securing rod combines with described spool, described swivel is passed to described spool around described axis to the rotation of a direction, allow described spool to rotate relatively to a direction simultaneously around described axis with respect to described swivel, when described swivel centered on axis to another direction rotation, described slide block made described securing rod move to and remain on described in conjunction with removing on the position.
2, a kind of tape winding apparatus, comprise spool, motor and power-transfer clutch, wherein said spool can be reeled or be twined the band that is used to fetter the passenger with pulling out, described clutch mechanism ground is between described motor and described spool, and the rotation of described motor passed to described spool, make described spool to the rotation of the coiling direction of described band, cut off the transmission of the rotation that described spool side produced simultaneously, pass to described motor to prevent described rotation;
It is characterized in that described power-transfer clutch comprises following parts:
Housing;
Described relatively spool is provided with coaxially, transmits the rotation of described motor and the swivel that rotates;
Be connected the ratchet on the described spool integratedly;
Remained on the described housing by friction force, thus the slide block that can described relatively swivel in preset range, relatively moves; With
Be arranged on the securing rod on the described swivel, described securing rod always is pushed to the bonding position with described ratchet, and remained on combining of described ratchet by described slide block usually and remove on the position, when described swivel during to the rotation of the coiling direction of described band, described securing rod moves with leaving described slide block, remove described maintained state, under the effect of described thrust, combine with described ratchet, described swivel is passed to described ratchet to the rotation of the coiling direction of described band, allow described ratchet to rotate relatively simultaneously with respect to the coiling direction of described swivel to described band, when described swivel during to the rotation of the pull-out direction of described band, move, described slide block makes described securing rod move to and remain on described in conjunction with removing on the position the approaching described slide block of described securing rod.
3, tape winding apparatus as claimed in claim 1 or 2, it is characterized in that, described swivel has the rotation of transmitting described motor and the gear that rotates, supports the rotor of described securing rod and be arranged between described gear and the described rotor and be connected the elastic claw of described gear and rotor, described elastic claw passes to described rotor with the rotation of described gear, and when the load that surpasses predetermined value acts on the described rotor, described load cuts off the transmission of the rotation between described gear and the described rotor, and described gear can be dallied relatively with described rotor.
4, tape winding apparatus as claimed in claim 1, it is characterized in that when described swivel centered on described axis to a direction rotation, the described relatively swivel of described slide block relatively moved in preset range, thus, the described securing rod that rotates integratedly with described swivel leaves described slide block.
5, tape winding apparatus as claimed in claim 4 is characterized in that, described securing rod moves with leaving described slide block, thereby combines with described spool.
6, tape winding apparatus as claimed in claim 4, it is characterized in that, in case the described relatively swivel of described spool is acted on the described spool to a counterrotating load of direction around described axis, combining immediately between described securing rod and the described spool removed.
7, tape winding apparatus as claimed in claim 4, it is characterized in that, when described swivel centers on described axis to another direction rotation, the described relatively swivel of described slide block relatively moves in preset range, thus, combine with described slide block once more with the described securing rod that described swivel rotates integratedly.
8, tape winding apparatus as claimed in claim 7 is characterized in that, described securing rod combines with described slide block once more, and described thus securing rod is maintained at combining of described spool and removes on the position.
9, tape winding apparatus as claimed in claim 2, it is characterized in that when described swivel during to the rotation of the coiling direction of described band, the described relatively swivel of described slide block relatively moves in preset range, thus, the described securing rod that rotates integratedly with described swivel leaves described slide block.
10, tape winding apparatus as claimed in claim 9 is characterized in that, described securing rod moves with leaving described slide block, thereby combines with described ratchet.
11, tape winding apparatus as claimed in claim 9, it is characterized in that, in case the described relatively swivel of described ratchet is acted on the described ratchet to the counterrotating load of the coiling direction of described band, combining immediately between described securing rod and the described ratchet removed.
12, tape winding apparatus as claimed in claim 9, it is characterized in that, when described swivel during to the rotation of the pull-out direction of described band, the described relatively swivel of described slide block relatively moves in preset range, thus, combine once more with described slide block with the described securing rod that described swivel rotates integratedly.
13, tape winding apparatus as claimed in claim 12 is characterized in that, described securing rod combines with described slide block once more, and described thus securing rod is maintained at combining of described ratchet and removes on the position.
14, tape winding apparatus as claimed in claim 1 or 2, it is characterized in that, in described slide block and the described securing rod at least one has maintaining part, and the described slide block when described maintaining part stops for described swivel leaves moving of described securing rod, produces certain resistance.
15, tape winding apparatus as claimed in claim 14 is characterized in that, described relatively swivel radially, the preliminary dimension ground combination that only is meshing with each other of described slide block and described securing rod, the joint portion of described slide block and described securing rod is described maintaining part.
16, a kind of tape winding apparatus, comprise spool, motor and power-transfer clutch, wherein said spool can be reeled or be twined the band that is used to fetter the passenger with pulling out, described clutch mechanism ground is between described motor and described spool, and the rotation of described motor passed to described spool, make the rotation of described spool, cut off the transmission of the rotation that described spool side produced simultaneously, pass to described motor to prevent described rotation;
It is characterized in that described power-transfer clutch comprises following parts:
Described relatively spool is provided with coaxially, transmits the rotation of described motor and the swivel that rotates;
Described relatively swivel can relatively move in preset range, and has the slide block to one of described moving direction side-prominent pressurization retention tab; With
Be arranged on the securing rod on the described swivel, described securing rod always is pushed to the bonding position with described spool, and have to the side-prominent releasing sheet of the described pressurization retention tab of described slide block, common described releasing sheet combines with described pressurization retention tab, thereby described securing rod remained on combining of described spool remove on the position, when described swivel centers on axis to a direction rotation, described securing rod moves with leaving described slide block, remove described maintained state, under the effect of described thrust, combine with described spool, described swivel is passed to described spool around described axis to the rotation of a direction, and when described swivel centers on axis to another direction rotation, move the approaching described slide block of described securing rod, described releasing sheet combines with described pressurization retention tab, thereby makes described securing rod move to and remain on described in conjunction with removing on the position;
And at least one in the described releasing sheet of the described pressurization retention tab of described slide block and described securing rod has maintaining part, and the described slide block when described maintaining part stops for described swivel leaves moving of described securing rod, produces certain resistance.
17, tape winding apparatus as claimed in claim 16, it is characterized in that described maintaining part forms the dip plane, when described slide block and described securing rod are mobile discretely, described thrust is resisted in described dip plane, makes described securing rod move scheduled volume to removing direction with combining of described spool.
18, a kind of tape winding apparatus, comprise spool, motor and power-transfer clutch, wherein said spool can be reeled or be twined the band that is used to fetter the passenger with pulling out, described clutch mechanism ground is between described motor and described spool, and the rotation of described motor passed to described spool, make the rotation of described spool, cut off the transmission of the rotation that described spool side produced simultaneously, pass to described motor to prevent described rotation;
It is characterized in that described power-transfer clutch comprises following parts:
Described relatively spool is provided with coaxially, transmits the rotation of described motor and the swivel that rotates;
The slide block that can described relatively swivel in preset range, relatively moves; With
Be arranged on the securing rod on the described swivel, described securing rod always is pushed to combining of described spool and removes direction, when described swivel centers on axis to a direction rotation, described slide block is pressed to described spool side with described securing rod, described securing rod combines with described spool, described swivel is passed to described spool around described axis to the rotation of a direction, and when described swivel centers on axis to another direction rotation, described slide block has been removed the described pressure of described securing rod, and described thrust makes described securing rod move to and remain on described in conjunction with removing on the position.
19, a kind of tape winding apparatus, comprise spool, motor and power-transfer clutch, wherein said spool can be reeled or be twined the band that is used to fetter the passenger with pulling out, described clutch mechanism ground is between described motor and described spool, and the rotation of described motor passed to described spool, make the rotation of described spool, cut off the transmission of the rotation that described spool side produced simultaneously, pass to described motor to prevent described rotation;
It is characterized in that described power-transfer clutch comprises following parts:
Described relatively spool is provided with coaxially, transmits the rotation of described motor and the swivel that rotates;
The a pair of slide block that can described relatively swivel in preset range, relatively moves respectively;
Connect described a pair of slide block and make described slide block keep synchronous pad; With
Be arranged on the pair of locking bar on the described swivel, usually described each slide block remains on described pair of locking bar respectively and removes on the position with combining of described spool, when described swivel centers on axis to a direction rotation, the maintained separately described state of described pair of locking bar has been removed, combine with described spool respectively, described swivel is passed to described spool around described axis to the rotation of a direction, and when described swivel centered on axis to another direction rotation, described each slide block made described pair of locking bar move to and remain on described in conjunction with removing on the position respectively.
20, tape winding apparatus as claimed in claim 19 is characterized in that, described power-transfer clutch comprises housing, and described pad and described housing moving contact.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004109314A JP4491266B2 (en) | 2004-04-01 | 2004-04-01 | Webbing take-up device |
| JP2004109314 | 2004-04-01 | ||
| JP2004259788 | 2004-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2799335Y true CN2799335Y (en) | 2006-07-26 |
Family
ID=35322701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520011412 Expired - Lifetime CN2799335Y (en) | 2004-04-01 | 2005-03-31 | Tape winding apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4491266B2 (en) |
| CN (1) | CN2799335Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100345710C (en) * | 2004-04-01 | 2007-10-31 | 株式会社东海理化电机制作所 | Webbing take-up device |
| CN107487294A (en) * | 2016-06-10 | 2017-12-19 | Trw汽车股份有限公司 | Clutch for seat belt tensioner |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101678815B (en) * | 2007-05-31 | 2011-08-10 | 奥托立夫开发公司 | Seat belt device |
| JP4976326B2 (en) * | 2008-03-31 | 2012-07-18 | 芦森工業株式会社 | Seat belt retractor |
| JP4722197B2 (en) * | 2009-04-28 | 2011-07-13 | オートリブ ディベロップメント エービー | Seat belt retractor |
| JP5460500B2 (en) * | 2010-07-12 | 2014-04-02 | 株式会社東海理化電機製作所 | Webbing take-up device |
| JP7434391B2 (en) | 2022-03-09 | 2024-02-20 | オートリブ ディベロップメント エービー | seat belt retractor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3525638B2 (en) * | 1996-08-26 | 2004-05-10 | タカタ株式会社 | Seat belt retractor |
| JP2004042789A (en) * | 2002-07-11 | 2004-02-12 | Tokai Rika Co Ltd | Webbing take-up device |
| JP2004042782A (en) * | 2002-07-11 | 2004-02-12 | Tokai Rika Co Ltd | Webbing take-up device |
-
2004
- 2004-04-01 JP JP2004109314A patent/JP4491266B2/en not_active Expired - Lifetime
-
2005
- 2005-03-31 CN CN 200520011412 patent/CN2799335Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100345710C (en) * | 2004-04-01 | 2007-10-31 | 株式会社东海理化电机制作所 | Webbing take-up device |
| CN107487294A (en) * | 2016-06-10 | 2017-12-19 | Trw汽车股份有限公司 | Clutch for seat belt tensioner |
| CN107487294B (en) * | 2016-06-10 | 2021-07-02 | Trw汽车股份有限公司 | Clutch for seat belt tensioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005289260A (en) | 2005-10-20 |
| JP4491266B2 (en) | 2010-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100345710C (en) | Webbing take-up device | |
| CN2799335Y (en) | Tape winding apparatus | |
| CN2799336Y (en) | Tape winding apparatus | |
| CN1128078C (en) | Webbing take-up device | |
| CN1264363C (en) | Honeycomb telephone and automatic rotating method | |
| CN1919661A (en) | Webbing winding device | |
| CN2818241Y (en) | Band coiler | |
| CN1292176C (en) | Driving device with motor and speed reducing mechanism | |
| CN1171754C (en) | Installation construction of small motorcycle seat | |
| CN1388874A (en) | Disc brake comprising an adjsting device on each side of the brake disc | |
| CN1865049A (en) | Seat belt retractor, seat belt apparatus, and vehicle with a seat belt apparatus | |
| CN1781676A (en) | Flywheel configuration for a power tool | |
| CN1190816A (en) | Wiring structure | |
| CN1817700A (en) | Seat belt retractor, seat belt apparatus, and vehicle | |
| CN1791496A (en) | Auto chain tensioner | |
| CN1491176A (en) | Reel member and method of winding film | |
| CN1840389A (en) | Seatbelt retractor, seatbelt apparatus, and motor vehicle having a seatbelt apparatus | |
| CN1973597A (en) | Combine | |
| CN1655958A (en) | Core structure of run-flat wheel | |
| CN1880132A (en) | Preloading device | |
| CN1796823A (en) | Actuator control system | |
| CN1927627A (en) | Motorized retractor | |
| CN1736014A (en) | Electric power steering device | |
| CN1069387C (en) | Flywheel, in particular for motor vehicles | |
| CN1846947A (en) | Solenoid positioning method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20050331 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |