JPH04231085A - Safety binding - Google Patents

Abstract

PURPOSE: To allow safety binding, particularly for a ski, to be easily released and reset without requiring large forces in any cases. CONSTITUTION: Ski binding with a heel fastening tool include as main components a base main body 3 secured to a ski, an upper main body 2 connected to the base main body 3 so as to slide over it, a lever 4 connected to time upper main body 2, and a claw connected to the lever and engaging the heel 12 of a boot, or the like, the lever rigidly being connected to a pedal 10 pivoted to the claw, the pedal being operated when the boot or the like is on it to operate a second mechanism provided for automatic resetting after safety release.

Description

[Detailed description of the invention]

0001

FIELD OF THE INVENTION This invention relates to safety bindings, and more particularly to ski bindings.

0002

BACKGROUND OF THE INVENTION Presently known safety bindings for skis typically consist of a heel device and a toe device, both of which are mounted on the ski and engage the front and rear of a standard ski boot. It is designed like this.

[0003] The known heel device has as a component a lever having a pawl portion that interacts with the heel portion of the boot, and a mechanism for automatically releasing the boot when a load exceeding a set value is applied to the pawl portion. It is equipped with

0004

[Problems to be Solved by the Invention] The above-mentioned conventional type has the disadvantage that when opening the binding, especially the heel device, it is necessary to apply a load to the lever that exceeds the tightening load set by the spring installed inside the heel device. left behind.

[0005] For this reason, skiers are forced to perform ergonomically impossible movements. The heel device is difficult to reach and requires bending at the waist and twisting the body backwards to firmly grasp the lever to apply force in the desired manner.

[0006] Although it is possible to operate the lever using ski poles, this is by no means an easy operation. This is because force is still required and it is not easy to position the tip of the pole correctly on the lever.

Another disadvantage of the conventional heel device is that after release is complete, the spring must be reloaded by returning the lever to its predetermined position in order to make the binding ready for booting again. This is a point that should not be made. That is, a considerable amount of effort is required to reset the binding.

It is therefore an object of the present invention to overcome the disadvantages of the prior art systems mentioned above, namely, to easily provide a device with a force that is smaller in any case than the load that must be transmitted to the spring that interacts with the locking pawl for fixing the boot, etc. The objective is to develop a safety binding that can be released and reset.

[0009] The scope of this objective also includes simplifying the operation when putting on the boots and eliminating the need to apply direct manual force to the lever or bend down at the waist.

Furthermore, it is important that the structure be simple and compact.

[0011] It is also noted that it should also have established characteristics in terms of reliability and security.

0012

[Means for Solving the Problems] The above-mentioned and below-mentioned objects are achieved mainly by a ski safety binding having the following characteristics. That is, the rear coupling device includes a base body that is firmly coupled to the ski, a first body that is slidable thereon, and a locking device that engages with the heel of a ski boot or the like. a lever associated therewith, the lever being also connected to the upper body near the upper end of the lever to which the user applies a force, and also being rigidly associated with a first means pivotally connected to the locking device. The safety binding is characterized in that the first means operates a second means for automatically resetting after the boot is opened.

[0013] Also, the lever connected to the first body portion by a first pivot near the upper end where the skier applies force has a U-shape with both arms extending obliquely downward toward the tip of the ski. It is effective to have

[0014] Preferably, the lever has a top portion shaped to be easily handled as a release pushbutton, and has a slot in the first pivot portion that is curved concavely toward the top portion.

[0015] Said lever is rigidly associated with said first means at its arms, said first means comprising at least one pedal, said pedal having at its free end an apex with the heel of the boot. Advantageously, it has generally triangular corners pointing in opposite directions and is pivotally connected to the locking device by a second transverse pivot near the base body.

[0016] One or more first slopes that contact one or more first rollers attached to one end of the pedal are connected to one end of the first adjusting screw through a correspondingly provided first tab; Advantageously, the head of the first adjustment screw is rotatably associated with a matching threaded hole in the rearwardly projecting rear wall of the base body.

[0017] Also, the first adjustment screw passes through a hole provided in a second tab protruding downward from the first body, and the shank of the screw passes through a hole provided in a second tab protruding downward from the first body. It is preferable that a first spring is installed between the cylinder attached to the cylinder and the second tab to enable elastic recovery of the first body part.

Furthermore, it is effective that the second tab is located between the first tab connecting the tip of the first adjusting screw and the cylinder.

[0019] It is preferable that the pedal protrudes beyond the key pawl so that it can be stepped on directly with the bottom of a boot or the like when the lever is released.

[0020] One end of each of the two connecting rods is pivotally connected to the lock fitting by a third pivot so that it can rotate freely, and a protrusion protruding downward from each other end of the connecting rod and both corners of the pedal It is effective to interact with the tip.

[0021] It is also preferred that a second roller attached near the protrusion of the connecting rod interacts with the proximal surface of the corner of the pedal.

[0022] A second spring, which is coaxially installed on the third pivot that pivotally connects the connecting rod to the locking device and is fastened by the first body, is configured to prevent the connecting rod from rotating at the end when the boot or the like is fixed. It is preferable that the load be applied to the

[0023] Furthermore, the rear coupling device includes as a component a cam installed in the second inner chamber of the first body above the first inner chamber and a third spring fastened to the cam; Three springs may be adjusted by a second adjustment screw operated from outside the first body to control release of the boot from the rear coupling device in an emergency.

[0024] Preferably, said cam interacts directly with one end of each of said connecting rods having said second roller.

[0025] Further, the rear coupling device includes a fourth spring on the first pivot portion connecting the lever to the first body portion, for adjusting the locking operation of the key pawl device and the lever. It is effective to include it as a component.

Further features and advantages of the invention will be made clear in the examples and drawings, which are recommended but do not limit the scope of the invention.
The drawings are likewise illustrative rather than restrictive.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 in the drawings designates the entire rear coupling device (hereinafter also referred to as heel device) of a safety key binding. The heel device mainly consists of a base body (reference numeral 3) firmly fixed to the ski and a first body 2 connected to slide thereon.

The heel device 1 also includes a lever 4 connected to the first body 2 by a first transverse pivot 5 near the upper end 6 of the lever on which the skier applies force.

The lever 4 is approximately U-shaped, and its arms 7a and 7b extend toward the base body 3 and towards the tip of the ski, and are located along an imaginary slope forming an acute angle with the base body. There is.

The top part 8 of the lever is shaped to act as a push button for opening.

The first pivot point of the lever 4 is provided with a slot 9 curving concavely towards the top 8 .

Therefore, when the lever 4 is closed,
A downward movement can be transmitted to the lever 4.

The pivot 1 crosses the locking tool 13 near the tips of both arms 7a and 7b of the lever 4, that is, near the base body 3.
4, the lever 4 is rigidly connected to the first means and pivoted to said locking device. The main part of the first means is a pedal 10, and both free ends of the pedal have triangular corners 11 with apexes pointing in the opposite direction to the heel 12 of the boot or the like.
It becomes.

One or more rollers 15 can be attached to the lower end of the pedal 10. Said roller contacts at least one first slope 16. Said first ramp is connected to a first adjustment screw 18 via a matching first tab 17 . Said first adjustment screw is rotatably connected with its head 19 to a matching screw hole provided in a rear wall 20 projecting from the rear of the base body 3.

In the first inner chamber 21 above the main body base 3, a cylinder 22 is attached to the shaft of the first adjustment screw 18, and a first spring 23 is adjacent to the cylinder 22. The other end of the first spring is in contact with a second tab 24 that projects downward from the first body portion 2. The second tab is provided with a through hole suitable for movement of the first adjustment screw 18.

The second tab 24 is connected to the tip of the first adjusting screw 18 attached to the first tab 17 and the cylinder 22.
It is located between.

The first adjustment screw 18 adjusts the binding to suit the length of the sole of a boot or the like. That is, by moving the first body portion 2 rearward using the first adjusting screw, the distance between the boots can be increased.

[0038] The first spring allows the rear coupling device 1 to perform an elastic restoring motion.

When the lever is open, the pedal 10 is
Since it protrudes beyond the key claw tool 13, it can be stepped on directly with the bottom of a boot or the like.

As another method of interlocking the boot and the locking device, instead of the first roller 15 attached to the pedal 10, a suitable fixing tab may be provided that protrudes near the base body 3 of the locking device 13. .

The tips of both corners 11 of the pedal 10 are provided with protrusions 25a and 25 that protrude downward from the lower ends of the two connecting rods 26.
interact with b. The connecting rod has a locking tool 1 at its upper end.
3 and a third pivot 27.

A second roller 28 is attached to each of the connecting rods near the protrusion, and the second roller contacts the proximal surface of the corner 11 of the pedal 10.

The second spring 29 that contacts the first body portion is installed coaxially with a third pivot 27 that pivotally connects the connecting rod 26 to the locking tool 13. The second spring 29 is loaded at the end of the counterclockwise rotational movement transmitted to the connecting rod, as will be described later.

A further component of the rear coupling device 1, the cam 30, is installed above the first interior chamber 21, ie in the second interior chamber 31 of the first body part 2.

The third spring 32 adjacent to the cam 30 in the second inner chamber 31 controls the release of the boot, etc. in an emergency by adjusting the second adjustment screw 33 which can be operated from the outside of the first body part 2. do.

Furthermore, the cam 30 is in direct contact with one end of the connecting rod 26 with the second roller 28.

Furthermore, in order to make the locking operation of the locking tool 5 more precise, a fourth spring 32 is installed on the first pivot 5 that connects the lever 4 to the first body portion 2.

The operation of the rear coupling device 1 is therefore as follows. When the skier presses the top part 8 of the lever in the state shown in FIG. 1, that is, with the lever 4 closed and the boots etc. connected to the binding, the lever 4 rotates about the second pivot 14 and pedals. Both corners 11 and protrusion 2 of 10
5a and 25b are separated.

As a result, the two connecting rods 26 rotate about the third pivot 27, and while the second spring 29 is unloaded, the rotation of the key claw tool 13 about the first pivot 5 is prevented. It becomes possible.

The rotation of the connecting rod 26 comes into contact with the inner wall of the locking tool 13 and stops.

Furthermore, during the aforementioned rotation, the second spring 29 is completely unloaded, and thereafter separates from the first body portion 2 and rotates together with the two connecting rods 26.

On the other hand, since the key claw tool 13 continues to rotate by the fourth spring 34, the cam 30 has passed the connecting rod 26 when the opening is completed.

[0053] At the stage where the rotation is completed, the connecting rod, which is no longer affected by the action of the second spring 29, stops rotating due to gravity and separates from the inner wall of the locking tool 13, which continues to rotate.

[0054] The rear coupling device is now ready to reattach the boot.

To perform the connection, simply place the heel of the boot or the like on the pedal 10 and step in the direction of the ski, so that the heel of the boot or the like is bitten into the locking device 13.

In this method, at the initial stage of rotation during connection,
The third spring 32 is not involved. Since the ends of both corners 11 of the pedal 10 do not engage with the protrusions 25a and 25b of the connecting rod, the connecting rod 26 does not push the cam 30.

Therefore, at the initial stage of rotation, only the fourth spring 34 (rotation of the lock 13) and the first spring 23 (rearward movement of the first body 2) act as resistance.

As described in the examples, the present invention achieves the aforementioned objectives. That is, a safety binding has been developed which has the feature that the rear binding device can be opened by simply pressing the top portion 8 of the lever 4.

The sole purpose of pressing the lever top 8 is to release the protrusions 25a and 25b from the tips of both corners 11 of the pedal 10. After release, release will be performed automatically.

[0060] Therefore, the large effort required in the conventional binding, ie, the effort corresponding to the resistance of the spring acting on the cam 30, is no longer necessary.

[0061] Also, since the rear coupling device is ready to couple the boot upon completion of opening, a reset operation is also eliminated. Furthermore, the effort required for joining was also reduced.

The binding according to the invention is naturally subject to various modifications and improvements, all of which are within the scope of the present inventive concept.

[0063] It is also natural that the materials and dimensions of each part constituting the product of this invention are optimal for the respective requirements.

[0064]

As described above, the present invention has developed a safety binding in which the rear binding device can be opened by simply pressing the top of the lever.

[0065] Therefore, the large effort required in conventional bindings, ie, the effort corresponding to the resistance of the spring acting on the cam, is no longer necessary.

[0066] Also, since the rear coupling device is ready to couple the boot upon completion of opening, a reset operation was also eliminated. Furthermore, the effort required for joining was also reduced.

[Brief explanation of the drawing]

1 is a central longitudinal sectional view of the rear fixator with the lever closed; FIG.

FIG. 2 is a sectional view schematically showing an intermediate stage of pushing the lever open in order to release the rear coupling device;

FIG. 3 is a side view showing the state when opened.

FIG. 4 is a schematic plan view of some of the parts that make up the binding.

[Explanation of symbols]

1　Rear coupling device 2 First body part 3 Base body 4 Lever 6 Upper end of lever 7a, 7b Arm 8　Lever top part 9 Slots 10 Pedal 11 Corner 12 Heel 13 Key nail tool

Claims (14)

[Claims] Claim 1: A safety binding, particularly a safety binding for skis, comprising a base body provided on the ski, a first body slidably provided with respect to the base body, and a vicinity of the upper end that can be operated by the user. a lever connected to the first body portion, a locking device associated with the lever and engaging the heel of a boot, etc.; a locking device firmly associated with the lever and pivotally connected to the locking device; A safety binding according to claim 1, characterized in that it has a rear coupling device comprising first means which are activated by said first means and which enable automatic resetting after emergency release of the boot or the like. 2. The lever, which is connected by a first pivot to the first body near the upper end where a skier applies force, has a U-shape with both arms extending obliquely downward toward the tip of the ski. Claim 1 characterized in that it has
Safety binding as described in. 3. The lever is characterized in that the lever has a top portion shaped to facilitate handling as a release pushbutton, and has a slot in the first pivot portion that is concavely curved toward the top portion. A safety binding according to claim 2. 4. The lever is rigidly associated with the first means at its arms, the first means comprising at least one pedal, the pedal having at its free end an apex of the boot. 4. The locking device of claim 3, having a generally triangular corner facing away from the heel and pivotally connected to the locking device by a second transverse pivot near the base body. Safety binding. 5. One or more first slopes that contact one or more first rollers attached to one end of the pedal are connected to one end of the first adjustment screw via a correspondingly provided first tab. 5. The safety of claim 4, wherein the head of said first adjustment screw is rotatably associated with a mating threaded hole in a rearwardly projecting rear wall of said base body. binding. 6. The first adjusting screw passes through a hole provided in a second tab projecting downwardly from the first body, and the shank of the screw passes through a hole provided in a second tab projecting downwardly from the first body, and in a first interior chamber above the base body. 6. The safety binding according to claim 5, wherein a first spring is installed between the cylinder attached to the second tab and the second tab to enable elastic recovery of the first body part. . 7. The safety binding according to claim 6, wherein the second tab is located between the first tab connecting the tip of the first adjusting screw and the cylinder. 8. The safety binding according to claim 7, wherein the pedal protrudes beyond the locking device and can be stepped on directly with the bottom of a boot or the like when the lever is released. 9. One end of each of the two connecting rods is pivotally connected to the lock fitting by a third pivot so that it can rotate freely, and a protrusion protruding downward from each other end of the connecting rod and both corners of the pedal are provided. 9. A safety binding according to claim 8, characterized in that the ends of the parts interact with each other. 10. Safety binding according to claim 9, characterized in that a second roller mounted near the protrusion of the connecting rod interacts with the proximal surface of the corner of the pedal. 11. A second spring installed coaxially with the third pivot that pivotally connects the connecting rod to the locking device and fastened by the first body portion prevents rotation of the connecting rod when a boot or the like is fixed. Claim 1 characterized in that the load is applied at the final stage of
The safety binding described in 1. 12. The rear coupling device includes as a component a cam installed in a second inner chamber of the first body above the first inner chamber and a third spring fastened to the cam, Claim 1, wherein three springs are adjusted by a second adjustment screw operated from the outside of the first body to control release of the boot from the rear coupling device in an emergency.
The safety binding described in 1. 13. The safety binding of claim 12, wherein the cam interacts directly with one end of each of the connecting rods having the second roller. 14. The rear coupling device includes a fourth spring on a first pivot portion that connects the lever to the first body portion, for adjusting the locking operation of the key pawl device and the lever. Claim 1 characterized in that it is included as a component part.
Safety binding described in 3.