JP2009504210A - Rotating fastener for shoes - Google Patents

Abstract

[Object] To provide a rotary fastener having a simple structure, which can perform a closing process quickly.
The hoisting spool (13) is formed as a rotary handle and is taken up from the ring groove (16) for guiding it through one or the other end (6a, 6b) of the pulling means (6). Two through-holes (17, 18) extending to the front surface facing away from the support (10) of (13) are provided. The hoisting spool (13) is guided by the bearing shaft (12) and the bearing so as to be axially displaceable, and has directionality when the hoisting spool (13) is in a position pushed against the support (10). When the ratchet mechanism is engaged and in a position pushed away from the support (10), the directional ratchet mechanism is released.
[Selection] Figure 1

Description

  The present invention relates to a rotating fastener for a shoe according to the opening part of claim 1.

  Such a rotary fastener is known from DE 297 01 491 U1. Here, a support shaft that engages with a bearing hole of a holding plate attached to a tongue of a shoe is disposed on a drive shaft provided with a rotary handle. A winding spool is rotatably arranged on the drive shaft, and a gear disk is non-rotatably arranged. The gear disk cooperates with the eccentric disk to form a reduction gear. A directional ratchet mechanism is formed by a detent spring that engages the teeth of the gear disc. A sliding clutch is provided between the rotary handle and the take-up spool for the first quick closing process. In the subsequent strong pulling process, the reduction gear is activated. In order to open the fastener, the detent spring is pulled out of engagement by the opening device.

  From DE 295 03 552 U1, a rotary fastener is known in which a winding spool is driven by a drive shaft of a rotary handle via a planetary gear mechanism, and between the drive shaft and the planetary gear mechanism for opening the fastener. A clutch member is provided that can be disconnected by applying pressure in the axial direction. In order to fix the pulling means to the hoisting spool hub, two through holes are provided through which the two ends of the pulling means pass.

  In the rotary fastener according to US 6,289,558 B1, the rotary handle is on the front side between the rotary handle mounted on the housing so as to be displaceable in the axial direction and the drive shaft for operating the winding spool via the gear reduction gear. The teeth are provided as clutches that are released when pulled by the hook and consequently release the hoist spool and open the fastener. The pulling position is fixed by a pawl type ratchet mechanism between the rotary handle and the housing. The two ends of the pulling means are fixed in the radial hole of the winding spool by set screws. A thin steel wire is used as the pulling means so that a longer length of the pulling means can be wound around the spool, such as in the case of a high-leg boot, but it easily causes kinking and breakage.

Known rotary fasteners are very expensive due to their complex structure. According to DE 297 01 491 U1, the closing process is shortened by means of a sliding clutch, but in known rotary fasteners, the tensioning means is wound over a longer length, in particular in the case of high-leg boots. If it has to be taken, it still takes a lot of time to pull the pulling means by rotating the rotary handle.
DE 297 01 491 U1 DE 295 03 552 U1 US 6,289,558 B1 DE 297 01 491 U1

  An object of the present invention is to provide a rotary fastener with a simple structure, which can perform the closing process quickly.

This is achieved according to the invention by a rotating fastener characterized in claim 1. Advantageous embodiments of the invention are presented in the dependent claims.

  A rotary fastener according to the present invention substantially comprises a winding spool, a bearing shaft for rotatably mounting the winding spool and a bearing for the bearing shaft, and a support located on a shoe for the rotatable mounting base. And a ratchet mechanism having directionality. Thus, the rotary fastener according to the invention is characterized by a very simple structure. That is, in contrast to the known rotary fasteners, the rotary fasteners according to the invention do not in particular have an additional rotary handle, no separate reduction gear, and no housing.

  The directional ratchet mechanism is preferably formed by a claw-type ratchet mechanism, and the claw is provided in the winding spool or the support tool, and the recess where the claw is engaged is provided in the support tool or the winding spool. That is, the pawl can be provided in the support and the recess can be provided in the spool, or the spool can have the pawl and the support can have the recess.

  Here, the pawl is preferably formed by an elastic tongue which can be formed integrally with a winding spool or support. Further, the bearing shaft can be formed integrally with the support or the take-up spool, and the bearing can be formed integrally with the take-up spool or the support. Nail | claw or nail | claw tongue is arrange | positioned at the circle | round | yen coaxial with a support axis | shaft, and distributes at fixed intervals around the circumference.

  Instead of a claw-type ratchet mechanism, a directional ratchet mechanism is formed by another ratchet mechanism that can rotate only in one direction in an engaged state, such as a toothed wheel type ratchet mechanism or a friction ratchet mechanism. It is also possible to do.

  Thereby, the rotary fastener according to the invention can be formed in as few as two parts, for example two injection molded plastic parts, in the simplest case. This means that the rotary fastener according to the invention can be manufactured very cost-effectively.

  Furthermore, in the rotary fastener according to the invention, the closing process can be carried out very quickly.

  When the shoe is in the open state and the tongue is moved too far to open the shoe, when the pulling means is fully sagging, the pulling means is wound up until the tension increases significantly. It is pulled out by hand through the two through holes. At the same time, the hoisting spool is pressed against the support, resulting in the engagement of a directional ratchet mechanism, i.e. the hoisting spool is fixed in one direction of rotation to close the shoe, after which the shoe fits correctly In order to wind and pull the pulling means onto the winding spool with a large tension, the winding spool formed as a rotary handle is manually rotated.

  Especially in shoes with legs, such as snowboard boots, most of the pulling means is simply pulled out through the two through-holes of the hoisting shaft, so that in the actual closing process, the hoisting spool is turned up by rotation of the hoisting spool. Only a small part of the pulling means has to be provided.

  This makes it possible to perform the closing process very quickly. Furthermore, the rotary fastener according to the present invention can be opened in a fraction of a second because the winding spool only needs to be pulled slightly forward so that the directional ratchet mechanism is opened, that is, disconnected.

  The support shaft can be provided on the take-up spool and can optionally be formed integrally with the take-up spool. In this case, the bearing for the bearing shaft can be formed by the bearing hole of the support tool, or can be formed by a cylinder preferably formed integrally with the support tool, for example. However, preferably the bearing shaft is arranged on the support, while the bearing is formed by the shaft hole of the winding spool.

  The through hole of the winding spool can be formed by a hole, or can be formed by, for example, an arcuate slit arranged coaxially with the rotation axis of the winding spool.

  The winding spool can be displaced in the axial direction for engagement and release of the directional ratchet mechanism. The take-up spool is guided axially by the bearing shaft and the bearing.

  Preferably, however, the take-up spool is configured so that it can be slid onto the bearing shaft and slid off the bearing shaft. This allows the two ends of the pulling means to be pulled easily and quickly through the two through holes of the hoist spool by simply grabbing them by hand, while at the same time pulling the hoist spool In the state guided by the end of the means, it can be pushed by the other hand towards the bearing shaft and slid onto the bearing shaft. Thereafter, to open the shoe, the hoist spool need only be slid off the bearing shaft, preferably by pulling on the two ends of the pulling means.

  Preferably, both the bearing shaft and the shaft hole of the take-up spool are conically tapered in a tapered manner. As a result, the shaft hole of the winding shaft spreading conically in the direction of the support can be slid to the conical taper end of the bearing shaft in the shaft hole of the winding spool. It can be easily slid onto the shaft.

  For rotation, a rotary handle formed as a winding spool according to the invention is gripped by hand at the outer periphery. For this purpose, the rotating handle has a rib, knurled or similar non-slip surface on the outer periphery.

  To form a gear reduction, the hub of the take-up spool, i.e. the ring groove of the take-up spool, has a diameter at the groove bottom that is much smaller than the outer diameter of the take-up spool. Preferably, the diameter at the groove bottom is at least a third smaller than the outer diameter of the take-up spool, preferably at least a half smaller.

  The two front through holes facing away from the take-up spool support are preferably arranged diametrically opposite each other, i.e. 180 ° apart and as close as possible to the groove bottom of the ring groove of the take-up spool. The That is, their radial distance from the groove bottom is preferably at most one third of the radial distance between the groove bottom and the outer diameter of the take-up spool.

Preferably, the cross-section of the ring groove of the winding spool is tapered toward the groove bottom. As a result, when the two through holes are positioned opposite to each other, the rotating handle is further rotated after the winding spool is rotated once, that is, when the tension of the pulling means acting on the winding spool is still relatively small. Then, the next winding of the pulling means overlaps two parts corresponding to a half rotation located at the groove bottom of the pulling means extending to the two through holes, so that this part of the pulling means is grooved When it is fixed to the bottom and the winding spool is further rotated, the tension is guided through the through hole and no longer acts on the two ends of the pulling means located at the bottom of the groove. For this purpose, the groove can be formed in a V-shaped cross section, for example, to form a narrow groove bottom, or from one or both of the two groove walls, the groove wall portion is directed to the other groove wall. It can extend obliquely with respect to the axis. The groove bottom may be linear. The groove bottom is preferably less than twice the thickness of the pulling means.

  Since the hoisting spool remains fixed to the pulling means when it is slid off the bearing shaft to open the shoe, the two parts guided by the through holes of the hoisting spool of the pulling means The ends are connected to each other, for example by a knot. In the region of the ends connected to each other, a strap can be provided, for example made of fabric material, leather or similar flexible material, so that the end of the pulling means is held by the strap.

  The pulling means is preferably formed by a conventional string or the like, preferably made of knitted plastic fibers. The thickness of such ropes formed by woven fibers can be, for example, 2 millimeters to 4 millimeters.

  The support for attaching the rotary fastener to the shoe is preferably formed by a retaining plate that can be incorporated into the shoe material, for example.

  The support can be attached to the side or back of the shoe leg, but preferably the rotating fastener is attached to the shoe tongue.

  Preferably, the shoe has a conventional lace system. That is, the opposing edges of the retaining flaps that overlap the tongue can be guided by a pulling means, such as a metal or plastic clasp or a woven string, a so-called “string loop”. As small a turning tool as possible is provided, and the pulling means forms an intersection between the two opposing turning tools in the tongue in any case. The winding spool of the rotary fastener is preferably arranged at or above the uppermost turning tool in the tongue.

  This means that the pulling means are guided by the shoe turning tool on both sides of the shoe tongue. When the support is attached to the tongue of the shoe, it protrudes forward, i.e. it is displaced towards the toe of the shoe, which is in a state of being pressed against the support, That is, the same applies to the winding spool when the directional ratchet mechanism is in the engaged state. Thereby, when the pulling means is pulled, the hoisting spool is pulled backwards towards the support by the two turning tools adjacent to the hoisting spool on both sides of the shoe tongue, whereby the bearing shaft Is securely held by the bearing, and the directional ratchet mechanism is reliably held in the engaged state.

  The rotary fastener according to the present invention is particularly suitable for shoes having legs, such as snowboard boots, ski boots, in-line skate boots, or ice skate boots, or other athletic shoes having legs.

  In the following, the rotary fastener according to the invention will be described in more detail by way of example only with reference to the accompanying drawings.

According to FIG. 1, a shoe (only a part of the leg 1 is shown) has turning tools 4, 5 formed as bending pipes at the edges of the two holding flaps 2, 3. A pulling means 6 such as a shoelace is guided through the turning tools 4 and 5, and in the same way as a conventional way of passing a shoelace,
An intersection point 7 is formed in the tongue 8 of the shoe that overlaps the holding flaps 2 and 3.

  A support 10 formed as a holding plate 9 is attached to the tongue 8 at the height of the uppermost turning tools 4 and 5 for passing the shoelaces shown in FIG. A support shaft 12 extending forward from the support 10.

  The bearing shaft 12 functions to rotatably mount the take-up spool 13. For this purpose, the winding spool 13 has a shaft hole 14 with which the bearing shaft 12 engages (FIGS. 3-6). The shaft hole 14 is conically formed in the same way as the bearing shaft 12, i.e. the diameter of the front surface of the winding spool 13 facing the support 10 is larger than the diameter of the opposite front surface.

  The take-up spool 13 is formed as a non-slip rotating handle by an outer peripheral rib 15. The take-up spool 13 has an outer ring groove 16 for taking up the pulling means 6 during winding.

  Two through holes 17 and 18 extend from the ring groove 16 with a 180 ° shift. The through holes 17 and 18 are formed by holes extending to the front surface of the winding spool 13 far from the support 10, and the two ends 6 a and 6 b of the pulling means 6 are guided through the holes. .

  Furthermore, a directional ratchet mechanism having the form of a claw-type ratchet mechanism is provided. The claw-type ratchet mechanism is arranged on the front surface of the holding plate 9 facing the holding plate 9 and the claw having the form of the elastic tongue 21 arranged on the front surface of the shoe plate 8 far from the tongue 8 of the shoe. And a serrated pawl 22. Thereby, when the tooth space of the pawl 22 is in a state where the winding spool 13 on the support shaft 12 is pushed to the holding plate 9 as shown in FIGS. An engaging recess is formed. In this state where the claw-type ratchet mechanism is engaged, the hoisting spool 13 can be rotated only in the rotational direction corresponding to the arrow A (FIGS. 3 to 5) to close the shoe. It cannot rotate in the opposite direction corresponding to 6).

  1 and 2, the take-up spool 13 is configured to be slid onto the support shaft 12 corresponding to the arrow C, and according to FIG. It is configured to be slid out of the screen.

  As shown in FIG. 7, the ring groove 16 of the winding shaft 13 has a groove bottom 23 formed by an inner groove wall portion 19 ′ facing the shaft 25 of the groove wall 19, The inner groove wall portion 19 ′ extends obliquely with respect to the shaft 25 to the other groove wall 20 having the two through holes (in FIG. 7, only the hole 17 can be seen). Between the groove wall portion 19 ′ and the groove wall 20, the groove bottom 23 is narrow and substantially linear. Furthermore, it can be seen from FIG. 7 that the through-hole 17 and the through-hole 18 located in the opposite direction and not visible in FIG. It can also be seen from the drawing that the two ends 6a, 6b of the pulling means 6 guided by the through holes 17, 18 are provided with a strap 24 at the end of the region where they are connected to each other. .

  The holding plate 9, the claw tongue 21, and the support shaft 12 are integrally formed as plastic parts by injection molding, for example. The take-up spool 13 together with the pawl 22 can form a single plastic part by injection molding.

  The rotary fastener according to the present invention functions as follows.

  When the shoe is in the open state according to FIG. 1 and when the tongue 8 is moved outwards to open the shoe, for example when the pulling means 6 formed by the shoelace is slack, The straps 24 of the end portions 6a and 6b are grasped with one hand, and the two end portions 6a and 6b are pulled corresponding to the arrow K (FIGS. 1 and 2). Grip the winding spool 13 with the other hand, press it against the bearing shaft 12 according to the arrow C (FIGS. 1 and 2), slide it onto the bearing shaft 12, and then pull the ends 6a, 6b of the pulling means, It is pulled out of the holes 17, 18 by the strap 24 until the tension increases significantly (FIG. 3). As a result, the claw-type ratchet mechanism is engaged, that is, the tongue 21 of the holding plate 9 is engaged with the teeth 22 of the winding spool 13, so that the winding spool 13 rotates only in the clockwise direction, that is, in the rotation direction indicated by the arrow A. It becomes possible. If the take-up spool 13 is further rotated beyond half a turn according to the arrow A starting from the state of FIG. 3, i.e. rotated to 270 [deg.], For example, to the position according to FIG. , 18 and the part extending into the groove encounters the next winding of the pulling means 6 at the groove bottom 23, so that this winding takes place from the turning tools 4, 5 with a higher tensile stress from the winding tool 13. Since the portion located at the groove bottom 23 of the pulling means is tightened, the two ends 6a of the pulling means guided by the through holes 17 and 18 when the winding spool 13 is further rotated are tightened. , 6b is no longer tensioned.

  By further rotating the winding spool according to FIG. 5, the gear reduction resulting from the ratio F: E, i.e. the diameter of the groove bottom with respect to the outer diameter of the rotating handle, causes the pulling means 6 to move to the winding shaft 13 with greater tension. It can be wrapped and the shoelace can be tightened until the shoe fits well.

  At the same time, since the two turning tools 4 and 5 adjacent to the spool 13 are shifted rearward with respect to the spool 13, the spool 13 is pulled toward the support tool 10, and is pulled by the tension means 6 that is pulled. It is securely held on the bearing shaft 12.

  To release the tightened shoe, the winding spool 13 according to FIG. 6 located on the bearing shaft 12 is slightly slid away from the holding plate 9 according to the arrow D, so that a pawl-type ratchet mechanism Is released, that is, the nail tongue 21 and the tooth 22 are disengaged. As a result, the hoisting spool 13 can be rotated in the reverse direction of the arrow B to open the shoe. The pull-up spool 13 is preferably pulled away by pulling the end portions 6 a and 6 b of the pulling means with the strap 24. Thereby, at the same time, the pulling means 6 is unwound from the spool 13, and the spool 13 rotates back to the initial state shown in FIGS.

  The embodiment according to FIGS. 8 and 9 is substantially provided with a pawl-type ratchet mechanism by a set of inwardly facing teeth 26 of the winding spool 13, and a pawl tongue 27 on the outer periphery of the projection 27 of the holding plate 9. Only in that it is provided is it different from the embodiment according to FIGS.

Only a portion of a shoe with a rotating fastener according to the first embodiment is shown in perspective view, showing the stage of closure. Only a portion of a shoe with a rotating fastener according to the first embodiment is shown in perspective view, showing the stage of closure. Only a portion of a shoe with a rotating fastener according to the first embodiment is shown in perspective view, showing the stage of closure. Only a portion of a shoe with a rotating fastener according to the first embodiment is shown in perspective view, showing the stage of closure. Only a portion of a shoe with a rotating fastener according to the first embodiment is shown in perspective view, showing the stage of closure. Only a portion of a shoe with a rotating fastener according to the first embodiment is shown in perspective view, showing its opening stage. FIG. 7 shows a side view of the winding spool of the rotary fastener according to FIGS. FIG. 3 shows in perspective view the stage according to FIG. 1 when closing the shoe for the case of another embodiment of the rotary fastener. FIG. 3 shows in perspective view the stage according to FIG. 2 when closing the shoe for the case of another embodiment of the rotary fastener.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Leg part 2 Holding | maintenance flap 3 Holding | maintenance flap 4 Turning tool 6 Pulling means 6a End part 7 Intersection point 8 Tongue 9 Holding plate 10 Support tool 12 Bearing shaft 13 Winding shaft (winding spool)
14 Shaft hole 15 Rib 16 Ring groove 17 Through hole 18 Through hole 19 Groove wall 20 Groove wall 21 Elastic tongue (nail tongue)
22 pawl 23 groove bottom 24 strap 25 shaft 26 tooth 27 nail tongue

Claims (19)

A hoisting spool (6) having two ends (6a, 6b), the two ends (6a, 6b) comprising a ring groove (16) for receiving the pulling means (6) Pulling means (6) working in (13);
A rotatable mounting base for the winding spool (13) by means of a bearing shaft (12) engaging with the bearing;
A support (10) that can be attached to the shoe due to the rotatable mounting; and a rotation direction (B) in the engaged state to be able to engage and disengage and secure the shoe A rotary fastener for shoes comprising a ratchet mechanism that fixes the winding spool (13) and releases the winding spool (13) in the rotational direction (B) in the released state,
The hoisting spool (13) is formed as a rotary handle and is guided from a ring groove (16) to guide the hoisting spool (6) through one or the other end (6a, 6b). Two through holes (17, 18) extending to the front surface facing away from the support (10) of (13) are provided,
When the hoisting spool (13) is guided by the bearing shaft (12) and the bearing so as to be axially displaceable, and the hoisting spool (13) is in a position where it is pushed to the support (10). The ratchet mechanism having directionality is released when the ratchet mechanism having directionality is engaged and is pushed away from the support tool (10). Rotating fastener. The bearing shaft (12) is disposed on the support (10);
2. A rotary fastener according to claim 1, wherein the bearing is formed by a shaft hole (14) in the winding spool (13).   The hoisting spool (13) can be slid onto the bearing shaft (12) and can be slid off the bearing shaft (12). Item 3. A rotary fastener according to item 2.   The bearing shaft (12) and the shaft hole (14) of the take-up spool (13) are tapered towards the end facing away from the support (10). A rotating fastener according to claim 3.   The ring groove (16) of the winding spool (13) has a diameter (F) at the groove bottom (23) that is at least one third smaller than the outer diameter (E) of the winding spool (13). The rotary fastener according to any one of claims 1 to 4, wherein the rotary fastener is provided.   A rotary fastener according to any one of the preceding claims, characterized in that the cross-section of the ring groove (16) of the winding spool (13) tapers to the groove bottom (23).   The rotary fastener according to any one of claims 1 to 6, characterized in that the two through holes (17, 18) are arranged diametrically opposite each other.   The rotary fastener according to any one of claims 1 to 7, wherein the two through holes (17, 18) extend to the groove bottom (23) of the ring groove (16). .   2. The two ends (6a, 6b) of the pulling means guided by the through holes (17, 18) of the winding spool (13) are connected to each other at the ends. Rotating fasteners as described in   The rotary fastener according to claim 1, wherein the directional ratchet mechanism is formed by a claw-type ratchet mechanism including at least one claw.   At least one claw is provided in the winding spool (13) or the support (10), and a recess in which the claw engages is provided in the support (10) or the winding spool (13). The rotary fastener according to claim 10.   12. A rotary fastener according to claim 11, characterized in that the recess is formed by a pawl (22, 25).   12. A rotary fastener according to claim 10 or 11, characterized in that the claw is formed by an elastic tongue (21, 27).   13. A rotary fastener according to claim 11 or 12, characterized in that a recess and / or tongue (21, 27) is formed integrally with the winding spool (13) or the support (10).   The rotary fastener according to any one of claims 1 to 14, wherein the bearing shaft (12) is formed integrally with the support (10) or the winding spool (13).   16. A rotary fastener according to any one of the preceding claims, characterized in that the support (10) is formed by a holding plate (9) that can be attached to a shoe.   17. A rotary fastener according to any one of the preceding claims, characterized in that the pulling means (6) is formed by shoelaces.   17. A rotary fastener according to any one of the preceding claims, characterized in that the support (10) is attached to a shoe tongue (8). The pulling means (6) is guided on both sides of the shoe tongue (8) by turning tools (4, 5) located on the shoe (1);
When the hoisting spool (13) is pressed into the support (10) in the engaged state, the two turning tools (4, 5) adjacent to each other on both sides of the shoe tongue (8) Because of this, the winding spool (13) is pulled toward the support (10) when the pulling means (6) is pulled. The rotary fastener according to claim 18.