JPH0447562B2 - - Google Patents

Abstract

The ratchet pawl device comprises a base (2), attachable to one of the flaps to be brought together and having lateral sides (5), delimiting an area of engagement for a serrated strap (6) connected to a lever associable with the other of the flaps to be brought together. Also provided being an oscillable body (10) hinged at a middle portion thereof to the lateral sides (5) and having a first toothed end (12) engageable with the serrated strap (6), and a second end (19) actuatable for disengaging the first toothed end (12) from the serrated strap (6). Lugs (20) project laterally from the oscillable body (10) and are engageable in seats (25) formed in the lateral sides (5) to prevent undesired oscillation of the oscillable body (10).

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a ratchet pawl device suitable for ski boots which engages a serrated strap of a closure lever.

BACKGROUND OF THE INVENTION Recently, ski boot closures have used a lever to which a serrated strap is connected.
It is well known that the strap is held through a latching device and then secured by a lever.

This ratchet device or mechanism basically consists of:
It consists of a small lever pivotally connected at its intermediate portion, including a first toothed end for engaging the serrations of the strap. This prevents the strap from sliding away from the base, and allows the strap to move in the direction of insertion by swinging the small lever.

The engagement of the strap with the ratchet mechanism is such that the first toothed end of the small lever engages the serrations on the strap in proportion to the force acting on the strap.

Further, as mentioned above, since the small lever is shaped so that it can swing, it can be adjusted to the desired length by passing the strap through the ratchet mechanism. Additionally, by applying force to the other end of the small lever, the toothed end formed on the other end of the lever can be disengaged from the serrated strap. That is, the toothed end is moved out of engagement with the serrated strap.

Problems to be Solved by the Invention The ratchet mechanism described above has the disadvantage that it does not provide a positive locking effect on the lever in its closed position.

In fact, in use, the lever is particularly vulnerable to impacts at the second end, so that it is easy to disengage from the serrated strap and to cause fluctuations in the tightening action of the closing lever. There is.

Such a situation can be considered extremely dangerous for the skier, as the tightness of the shoe may fluctuate to the point where it no longer holds the foot firmly.

It is an object of the present invention to provide a ratchet pawl device suitable for a ski boot which engages a serrated strap of a closure lever, in the closed state of the lever.
It is an object of the present invention to provide a serrated strap that will not accidentally disengage from a ratchet pawl device, thus overcoming the drawbacks of the prior art.

Another object of the invention is to provide a ratchet pawl device of the above type, which has obvious improvements, is simple in construction, and does not require special or difficult procedures for operation.

It is further an object of the present invention to be easily fabricated from commercially available components and materials;
The object of the present invention is to provide a ratchet pawl device as described above that is competitive from a pure economic standpoint.

Means for Solving the Problems The above and other objects will become clear from the following description, by providing a lever attached to one of the flaps to be assembled and connected to a lever provided on the other flap to be assembled. a base including a sidewall forming a region for engaging the serrated strap;
The central part is comprised of a rocking body pivotally connected to the side wall,
The rocker engages the serrated strap to prevent movement of the serrated strap in the direction of withdrawal from the base and prevents movement of the serrated strap in the direction of insertion through the base. including a first toothed end for rockingly movable the rocker and moving the first toothed end about a pivot to engage the first toothed end with the serrated strap; in a ratchet pawl device including a second end that is removable, the serrated strap is moved by applying a tensile force with the lever in a direction to pull the serrated strap out of the base; This is achieved by a ratchet pawl device suitable for ski boots, which engages a serrated strap of the closure lever, characterized in that it has means for preventing rocking.

BRIEF DESCRIPTION OF THE DRAWINGS Other features and advantages of the invention will become apparent from the following description of a preferred embodiment of a ratchet pawl device, which is illustrated in the accompanying drawings, but is not limited thereto.

Operation, Embodiment The ratchet pawl device according to the present invention, as shown in FIG. 4 are provided.

From the central part 3 project side walls 5 facing each other, one end of which defines an area for engaging a serrated strap 6 connected to a locking lever known per se as indicated at 7. .

This ratchet pawl device further includes a rocking body 1.
0, which has a flat shape and is pivoted in the middle to a pin 11 supported on the side wall 5.

The rocker 10 includes a first toothed end 12 which engages the sawtooth 6a on the sawtooth strap 6.

The serrations 6a and the first toothed ends 12a of the serrated strap 6 are shaped to prevent the serrated strap from moving out of the base 2 (as indicated by arrow 100 in FIG. 2). While having
Insertion of the serrated strap 6 is possible due to the rocking of the rocker.

The first toothed end 12 resiliently contacts and is retained by the serrated strap. This is combined with a pin 11 and has a first end 16 that engages one of the side walls 5.
and the other end 17 inserted into a recess 18 provided on the side surface of the rocking body 10.

By applying pressure on the second end 19 of the rocker 10, located opposite the first toothed end 12, the spring 1
The rocking body 10 can be rocked around the pivot point against the deflection action of the rocker 5. In this way,
The engagement of the first toothed end 12 with the sawtooth 6a of the serrated strap 6 is released.

A feature of the present invention is that the above-mentioned ratchet pawl device includes means for moving the oscillating body 10 by the tensile force exerted by the closing lever on the serrated strap when tightened by the closing lever, and for preventing the oscillating body 10 from swinging. There is a particular thing. This is important to prevent the serrated strap from unintentionally disengaging or slipping out of the ratchet mechanism due to an inadvertent force applied to the rocker 10.

Basically, such a fixing mechanism is arranged so that the protrusion 20 protruding laterally from the rocking body can be moved to a notch formed in the side wall 5, that is, to the fixing seat 25, relative to the pivot point. This is provided by making the rocking body 10 movable.

Specifically, the swinging body 10 is combined with the pin 11 through an elongated hole 21 having a substantially elliptical or other elongated cross section with its long axis in the direction in which the serrated strap comes out.

The protrusion is provided on the first toothed end 12. This may be formed by a through pin projecting laterally from the rocking body 10, or may be formed integrally with the rocking body 10 itself.

When the pin 11 is fixed at the front part of the oval elongated hole 21, that is, at the end of the shaft hole 21 that is located far from the closing lever 7, the above-mentioned protrusion is provided in the side wall 5. It is received in a notch or notch 25.

When the pin is at the rear of the oval elongated hole 21, that is, at the end of the elongated hole closest to the closing lever 7, the protrusion 20 is not obstructed by the notch 25, and the rocking body 10 swings. The toothed end 12 can be detached from the serrated strap in a conventional manner.

When a closing tension is applied to the serrated strap 6 by the lever 7, the teeth 12a engage the serrations 6a of the serrated strap and the rocker 10 moves around the pin 11. The protrusion 20 then seats in the notch 25. As a result, even if pressure is applied to the second end of the rocking body 10, the rocking body cannot swing.

When the lever 7 is opened again and the tension on the serrated strap is released, the protrusion 20 slips out of the notch 25 and the first toothed end 12 separates from the serrated strap 6, allowing the rocking body 10 to swing. Become. In this way, the ratchet pawl device is opened.

Effects From the above description, the present invention achieves its purpose and can very easily and quickly prevent the rocking body from swinging, especially when the serrated strap is tightened, that is, when the lever is in the closed state. It is thought that he did so.

Numerous modifications and variations can be made to the invention disclosed herein without departing from the scope of the inventive concept.

Furthermore, all details may be replaced by other technically equivalent elements.

In practicing the present invention, various materials can be selected and used to meet the requirements, as well as size and shape, as long as they are compatible with the application.

[Brief explanation of the drawing]

1 to 4 are explanatory views of an embodiment of the present invention, in which FIG. 1 is an exploded perspective view of a ratchet pawl device, and FIG. 2 shows a serrated strap connected to a closure lever that FIG. 3 is a partial cross-sectional view showing the ratchet pawl device in a fixed state; FIG.
Figure 3 is a partial cross-sectional view of the ratchet mechanism in its released state, ie, when no tension is applied to the serrated strap by the lever; In the drawings, 2... base body, 5... side wall, 6... serrated strap, 7... lever, 10... rocking body, 11...
pin, 12...first toothed end, 15...hairpin spring, 16...first end, 18...indentation, 19...second end,
20...Protrusion, 21...Elongated hole, 25...Notch.

Claims (1)

Claims: 1. A base body comprising a side wall 5 forming an area for engaging a serrated strap 6 attached to one of the flaps to be assembled and connected to a lever 7 on the other flap to be assembled. 2, and a rocking body 10 whose central portion is pivotally connected to the side wall 5.
The oscillator consists of the serrated strap 6.
engages with the serrated strap 6 to prevent the serrated strap 6 from moving in the direction of withdrawal from the base body 2, and to rock the rocker body 10 in the direction in which the strap 6 is inserted through the base body 2. a first toothed end 12 movable about the pivot axis;
In a ratchet pawl device comprising a second end 19 which allows the toothed end 12 to be moved to disengage the first toothed end 12 from the serrated strap 6, The sawtooth of the closing lever is characterized in that it has means 20 and 25 for preventing the rocking body from swinging by applying a tensile force using the lever 7 in the direction of pulling out the rocking body from the rocking body 10. A ratchet pawl device suitable for ski boots that engages a shaped strap. 2. The means for preventing the rocking body from rocking is the rocking body 1.
The ratchet pawl device according to claim 1, characterized in that the ratchet pawl device is a protrusion 20 that protrudes from the side surface of the ratchet pawl and is caught in a notch 25 provided in the side wall 5. 3. Claim 1, characterized in that a protrusion 20 is provided on the end of the band closest to the first toothed end 12 of the central band where the pivoting portion of the rocking body 10 is located. Or the ratchet pawl device according to item 2. 4 The rocking body is pivotally mounted on a pin 11 supported on the side wall 5, and the pin 11 is accommodated in a long hole 21 provided in the rocking body, and the long hole 21 has a serrated strap 6 in cross section. The ratchet pawl device according to any one of claims 1 to 3, characterized in that the ratchet pawl device has a shape that is elongated in the direction in which the ratchet pawl extends. 5 Acting between the base body 2 and the rocker 10 to achieve the engagement of the rocker and the serrated strap, the first
In a ratchet pawl device comprising elastic means for elastically pressing the toothed end 12 against the serrated strap 6, said elastic means is a hairpin spring 15 which engages the pin 11 and which is attached to one of the side walls 5. According to any one of claims 1 to 4, the spring includes an end 16 and the other end accommodated in a recess 18 provided in a side surface of the rocking body 10. ratchet pawl device.