JPH0447563B2 - - Google Patents

Abstract

An actuator device for an instep presser, particularly useful in rear entrance ski boots, comprises a cable (1) extending above a presser located inside the boot shell at the instep region and being attached with one end to a side point on the shell, and with the other end to an actuator element. A peculiar aspect of the invention is that the actuator element includes a cable take-up reel (10) made rotatively rigid with a knob (20) carried, for rotational and axial movements, on a fixed body (15) associated with the shell. Also provided is a means of releasably preventing rotation of the knob (20), which comprises front tooth formations (30, 31), respectively provided on the fixed body (15) and knob (20).

Description

[Detailed description of the invention] The present invention relates to an actuator for an instep depressor,
More specifically, the present invention relates to an actuator for an instep presser particularly suitable for rear entry type ski boots.

As is well known, when it comes to rear entry type ski boots, it is important to ensure tight contact with the heel when worn, and for this purpose, it is essential to firmly bind the instep towards the heel of the boot. ,
Various efforts have also been made to achieve this goal. To solve this problem, it has been common practice to provide a pusher inside the boot shell that is actuated to exert the desired locking pressure on the instep area.

To achieve such a locking effect, U.S. Pat.
No. 4160332 proposes the use of a cable that acts on a pressing member so as to press the pressing member against the instep of the user's foot, and the cable is equipped with a reel member that applies a pulling force to the cable. tensioned by the pivoting movement of the rear quarter of the boot which acts substantially as

Although the conventional structure described above is extremely simple, it is not very practical and inconvenient because the user has to open the quarter appropriately or in stages in order to adjust the tension of the cable that locks the pressing member. It is something.

In Japanese Patent Application No. 58-124884 filed on July 11, 1988 by the present applicant, a cable extending above a presser acting on the instep is wound around a reel and It is configured to be unwound and is connected at one end to a mechanism located at the rear of the boot. The mechanism includes pinion gears and gear drive members that are highly effective in reducing the pulling force required to apply the desired tensioning force.

This latter embodiment is quite ideal among the previous ones, as it allows the user to finely adjust or set the tension applied to the boots, but it requires a large number of parts during assembly. It is disadvantageous in terms of manufacturing, as it requires a large number of units and has a complicated structure, which requires time and effort to assemble.

The object of the present invention is to successfully combine the advantages of the known embodiments and at the same time eliminate their disadvantages, so that the tension applied to the instep presser can be adjusted continuously and steplessly by the user himself while wearing it. An object of the present invention is to provide an actuator device that is possible.

Another object of the present invention is to provide an actuator device that allows the user to adjust the tension force quickly and easily without requiring any skill.

Another object of the present invention is to provide an actuator device for an instep presser that is highly reliable and safe due to its unique structure, i.e., its simple structure.

These objects include a depressor located in the instep area inside the boot shell and attached to an actuator device having one end fixed in a lateral position inside said boot shell and the other end attached to the rear of the boot shell. In a ski boot of the type in which the presser is strongly pressed against the instep by tensioning one cable, the actuator device is connected to the other end of the cable;
A fixed body rotatably houses the reel and is attached to the boot shell, and is engaged on the fixed body, and the engagement is achieved by sliding in the axial direction during use. The actuator device of the instep depressor comprises a knob which is released and is rotatable together with the reel, and a pair of interlocking front tooth structures respectively carved on the engagement surfaces of the knob and the fixed body. It will be achieved.

Further, according to one aspect of the present invention to achieve the above object, the cable is slidably inserted within the flexible sheath, and one end of the cable is fixed inside the boot shell. It is characterized in that it is guided by support blocks fixed in opposite lateral positions.

According to a further preferred aspect of the present invention, one end of the flexible sheath is firmly connected to the fixed body via a bush that is engaged with a yoke disposed on the outer peripheral edge of the fixed body. It is characterized by

Further, according to a preferred aspect of the present invention, the reel has a pulley portion and a cylindrical protrusion extending in the axial direction from the pulley portion, and the fixed body protrudes and extends in the axial direction from the portion housing the reel. the knob is joined to the inner tubular body by an annular inner bottom; The outer cylindrical body has an outer cylindrical body with an inner partition extending in the axial direction projecting from the inner surface of the outer cylindrical body, and a slot that engages with the inner partition on the outer peripheral edge. It is characterized by a disk-shaped cover that is fitted into the hole.

Further, in each of the above embodiments, the protrusion is firmly coupled to the disc-shaped cover, and the knob is slidable in the axial direction with respect to the disc-shaped cover, and simultaneously with the disc-shaped cover. It is characterized in that the fixed body is rotatable around the bushing portion.

Furthermore, in addition to the above-mentioned aspects, according to a preferred aspect of the present invention, the front tooth structure is provided on one side at a shoulder portion of the fixed body corresponding to the root portion of the bushing portion, and on the other hand at the base portion of the inner cylindrical body. It is characterized by having an elastic means for relatively engaging the front tooth structure between the disc-shaped cover and the inner bottom and elastically maintaining the engaged state. .

Preferably, the knob has a leg portion that protrudes in the axial direction from an outer peripheral portion of the knob and is arranged to come into contact with a pawl formed on the boot shell, forming a stopper member that defines a rotation end of the knob. It is characterized by what it does.

The configuration and advantages of the present invention described above can be more clearly understood by describing a specific example shown in the accompanying drawings.

1 and 2, an actuator device for an instep presser according to the present invention, which is particularly effective in application to rear entry type ski boots, is slidably inserted into a flexible sheath 2. It has a cable 1 that is
This cable 1 has one end, indicated by reference numeral 3, fixed in a lateral position inside the boot shell 4, and traverses the outer circumferential surface of the instep presser, indicated by reference numeral 5.

The flexible sheath 2 is guided by a support block 6 fixed at a lateral position opposite to the fixation point 3, and the cable 1 is stretched symmetrically across the pusher 5 at this position. has been done.

The cable 1 is attached at its other end to an actuator device mounted at the rear of the boot shell, the details of which are shown in FIG. The other end of the cable 1 is connected to a pulley portion 11 of a reel 10 which is rotatably housed in a stepped cylindrical fixed body 15 having a yoke 16 on the outer periphery, which is actually a component of an actuator device. The yoke 16 is a small bush 1 attached to the end of the flexible sheath 2 to guide the winding or unwinding of the cable 1 onto the pulley section.
It is engaged with 7.

The reel 10, as shown in detail in FIGS. 2 and 3, has a pulley portion 11 and a cylindrical projection 12 extending axially from the pulley portion, while a fixed body 15 is attached to the reel. The reel 10 has an elongated cylindrical bushing part 18 which projects and extends in the axial direction from the large diameter part that houses the reel 10. Even if the fixed body 15 is fixed to the rear part of the boot shell 4, it can freely rotate within the space defined by its interior and the rear surface of the shell.

The knob 20 is engaged on the fixed body and, in use, is disengaged by sliding axially so that it can rotate with the reel.

More specifically, the knob 20 has an outer cylindrical body 21 coaxially joined to an inner cylindrical body 22 by an annular inner bottom 27, and an inner surface of the outer cylindrical body 22. An elongated rib-shaped inner partition 23 extending in the axial direction
is installed protrudingly. Furthermore, a disc-shaped cover 25 is fitted inside the knob 20 and has a slot 24 formed on its outer periphery to engage with the inner partition 23, and the protrusion 12 of the reel 10 is fitted into the center of this disc-shaped cover 25. It is fitted into or abutted against the end of the protrusion, and as shown in FIG. 3, is screwed from within the protrusion with a screw 26 to firmly connect it.

Since the inner partition 23 protruding from the inner surface of the knob 20 engages with the slot 24 formed in the disc-shaped cover 25, the knob 20 cannot be slid axially along the bushing portion 18 of the fixed body 15. You will be guided.

In addition, in actual use, that is, the above-mentioned pulley 1
In order to wind the cable 1 around the cable 1, it is sufficient to simply rotate the knob 20 along the clockwise arrow shown in FIG. The elastic means 40 interposed between the shaped cover 25 and the inner bottom 27 of the knob prevents the knob from returning even if the hand is released.
On the other hand, to unwind the cable 1 from the pulley 11, lift the knob 20 slightly in the axial direction to release the front tooth structure, then continue to hold the knob counterclockwise, and the cable will naturally unwind. Relaxing. In either case, the knob 20 rotates around the bushing part 18 of the fixed body 15, and at this time, the disc-shaped cover 25 and the reel 10 also rotate, so the pulley also rotates, thereby winding or unwinding the cable. becomes possible.

The fixed body 15 has a first front tooth structure 30 engraved at the enlarged diameter shoulder corresponding to the root of the bushing portion 18, and a second front tooth structure 31 is engraved at the base of the inner cylindrical body 22. They are arranged to mesh with each other and form a ratchet gear.

Further, an elastic means 40 made of a coil spring is stretched between the disc-shaped cover 25 and the inner bottom 27, and a second The front tooth structure 31 is elastically pressed to prevent the knob from being inadvertently rotated.

In the above configuration, when the cable 1 is tensioned by rotating the knob 20 clockwise, the second front tooth structure 31 slides over the first front tooth structure 30, and when the knob is released, the second front tooth structure 31 slides over the first front tooth structure 30. It immediately stops and locks in the angular position, i.e. the predetermined cable tension. This is because, as mentioned above, the front tooth structure is a ratchet gear and the elastic means 40 acts on the front tooth structure.

The knob 20 extends from its outer periphery, that is, from the outer cylindrical body 21
It has a rod-shaped leg portion 50 that projects in the axial direction from the boot shell 4, and is arranged so as to come into contact with a pawl (not shown) formed on the surface of the boot shell 4.
This leg 50 acts as a stop member for defining the substantially 360 DEG rotational end of the knob.

As can be easily understood from the explanation of the above-mentioned specific example, the present invention connects the cable 1 to the knob 20 via the reel 10, and has an extremely simple structure, which is different from the conventional example. There is no need to use a gear device for tightening. Therefore, it is highly reliable and safe, and has many advantages such as being easy to assemble and install.

Furthermore, the actuator device according to the present invention allows the user to tighten the instep presser by only rotating the knob in one direction, and loosen it by simply pulling the knob a small amount. It is convenient in that it can be operated quickly in cold conditions, such as when wearing thick gloves that would normally be worn at a ski resort, and that adjustments can be made over a wide range, continuously, and almost steplessly. .

[Brief explanation of the drawing]

FIG. 1 is a partially sectional perspective view schematically showing a ski boot incorporating an actuator device according to the invention. FIG. 2 is an exploded perspective view of the actuator device of the present invention. FIG. 3 is a cross-sectional view schematically showing a cable take-up reel. Symbols in the diagram: 1... Cable, 2... Flexible sheath, 3... Fixing point, 4... Boot shell, 5...
... Presser, 6 ... Guide block, 10 ... Reel, 11 ... Pulley part, 12 ... Projection, 15
... Fixed body, 16 ... Yoke, 17 ... Button, 18 ... Button part, 20 ... Knob, 21
...Outer cylindrical body, 22...Inner cylindrical body, 23...
Inner partition, 24...Slot, 25...Disc-shaped cover, 27...Inner bottom, 30, 31...First and second front tooth mechanisms, 40...Elastic means, 50...
The legs are shown respectively.

Claims (1)

[Claims] 1. A presser element 5 disposed in the instep area inside the boot shell 4, with one end 3 fixed to a lateral position inside the boot shell and the other end attached to the rear part of the boot shell. In a type of ski boot in which the presser is strongly pressed against the instep by tensioning one cable 1 attached to an actuator device, the actuator device is connected to the other end of the cable 1. a reel 10, a fixed body 15 rotatably housing the reel and attached to the boot shell; The knob 20 is disengaged and is rotatable together with the reel, and a pair of front tooth structures 30 and 31 that engage with each other are respectively carved on the engagement surfaces of the knob and the fixed body. An actuator device for an instep depressor, characterized by: 2 The cable 1 is slidably inserted within the flexible sheath 2, and one end of the cable is fixed at a lateral position opposite to the lateral position inside the boot shell 4 to which it is fixed. An actuator device for an instep presser according to claim 1, characterized in that the actuator device is guided by a support block 6 which is provided with a support block. 3. One end of the flexible sheath 2 is firmly connected to the fixed body 15 through a bush 17 that is engaged with a yoke 16 disposed on the outer peripheral edge of the fixed body 15. Claim 1
The actuator device for an instep presser according to item 1 or 2. 4. The reel 10 has a pulley portion 11 and a cylindrical protrusion 12 extending in the axial direction from the pulley portion, and the fixed body 15 is a cylindrical bush that protrudes and extends in the axial direction from the portion that accommodates the reel. Foot according to any one of claims 1 to 3, characterized in that it has a section 18, and the projection is rotatably housed in the bushing section. Actuator device for instep presser. 5. The knob 20 has an outer cylindrical body 21 joined to an inner cylindrical body 22 by an annular inner bottom 27, and an inner surface extending in the axial direction is provided on the inner surface of the outer cylindrical body. A disc-shaped cover 25 having a protruding partition 23 and a slot 24 formed on the outer peripheral edge thereof which engages with the inner partition is fitted into the cover 25. The actuator device for an instep presser according to any one of items 1 to 4. 6. The protrusion 12 is firmly coupled to the disk-shaped cover 25, and the knob 20 is slidable in the axial direction with respect to the disk-shaped cover, and at the same time, the fixed body is connected together with the disk-shaped cover. Claims 1 to 5 are characterized in that the bushing portion 18 of the invention is rotatable around the bushing portion 18 of the invention.
An actuator device for an instep presser according to any one of the items. 7. The front tooth structures 30, 31 are carved on the shoulder part of the fixed body 15 corresponding to the root part of the bushing part 18 on the one hand, and on the base of the inner cylindrical body 22 on the other hand. An actuator device for an instep presser according to any one of claims 1 to 6. 8. An elastic means 40 is provided for relatively engaging the front tooth structures 30 and 31 between the disc-shaped cover 25 and the inner bottom 27 and elastically maintaining the engaged state. An actuator device for an instep presser according to any one of claims 1 to 7. 9. The knob 20 has a leg portion 50 that protrudes in the axial direction from its outer peripheral portion and is arranged to contact a pawl formed on the boot shell 4, forming a stopper member that defines a rotational travel end of the knob. An actuator device for an instep presser according to any one of claims 1 to 8.