A ski binding

Abstract

The application discloses a ski fixing device, which comprises a body, a back plate and an adjusting device, the back plate is rotationally connected to the rear part of the body around a first axis which is perpendicular to the up-down direction, the extending direction of the back plate is perpendicular to the first axis, the adjusting device is slidingly connected to the back plate and is adapted to slide or be fixed along the extending direction of the back plate, and the adjusting device is further provided with an abutting part which is adapted to abut against the body downward. The ski fixing device adopting the technical scheme can help avoid the Achilles tendon of the user from being pulled or torn due to the user's foot being caught by an obstacle during high-speed skiing.

Description

Technical Field

[0001] This invention relates to the field of ski equipment technology, and more specifically to a ski binding. Background Technology

[0002] Snowboarding has become a popular outdoor sport. Snowboarding requires bindings to secure the user's feet to the snowboard. Existing bindings typically include a backplate, located at the rear of the binding to fit against the back of the user's shins, providing support and allowing for back-edge carving. However, during high-speed carving, if the back edge suddenly gets caught on an obstacle (such as hard snow or ice), it often leads to Achilles tendon strains or even tears. Summary of the Invention

[0003] The purpose of this invention is to overcome the aforementioned defects or problems in the prior art and to provide a ski binding that helps prevent Achilles tendon strains or tears caused by the rear edge getting caught on an obstacle during high-speed skiing.

[0004] After repeated research, the applicant discovered that the reason why users suffer Achilles tendon strains or tears when the rear edge gets stuck on an obstacle during high-speed skiing is that when the rear edge gets stuck on an obstacle, the skis decelerate suddenly, while the user's body continues to move forward due to inertia. At this time, the lower leg will violently swing forward and upward relative to the ski bindings. Since the back plate of the existing ski bindings is fixed after being adjusted and cannot follow the movement of the lower leg, the impact force generated by this inertia will directly act on the lower leg, causing the Achilles tendon to be violently stretched, resulting in strains or even tears.

[0005] Therefore, the following technical solution is adopted in this application.

[0006] Option 1 relates to a ski binding, which includes a body, a backplate, and an adjustment device. The backplate is rotatably connected to the rear of the body about a first axis perpendicular to the vertical direction. The extension direction of the backplate is perpendicular to the first axis. The adjustment device is slidably connected to the backplate and is adapted to slide or be fixed along the extension direction of the backplate. The adjustment device is also provided with an abutment part, which is adapted to abut against the body downward.

[0007] In this technical solution, the backplate is rotatably connected to the rear of the main body around a first axis perpendicular to the vertical direction. The extension direction of the backplate is perpendicular to the first axis. The adjustment device is slidably connected to the backplate and is suitable for sliding or fixing along the extension direction of the backplate. Therefore, the position of the adjustment device fixed to the backplate can be changed. The adjustment device also has a stop part, which is suitable for abutting the main body downwards. Therefore, under normal conditions, the stop part is always abutting the main body downwards under the action of gravity. The main body can limit the extreme position of the backplate's rotation backwards and downwards. Thus, changing the position of the adjustment device fixed to the backplate can adjust the position of the backplate relative to the main body to accommodate users of different body types. Furthermore, during normal gliding, the stop part of the adjustment device abuts against the main body, allowing the backplate to withstand the backward pressure of the lower leg to provide rear edge support. When the rear edge gets stuck, causing the user's body to lunge forward and the lower leg to exert a forward and upward thrust on the backplate, the backplate can rotate forward and upward around the first axis along with the lower leg. At this time, the contact part can disengage from the body, and the backplate moves with the lower leg to generate a buffer stroke, reducing the peak impact force on the Achilles tendon. Therefore, ski bindings using this technical solution are beneficial in preventing Achilles tendon strains or tears caused by the rear edge getting stuck on an obstacle during high-speed skiing.

[0008] Option 2 is based on Option 1. In Option 2, the main body is provided with a base plate and an ankle cup. When the human foot steps on the base plate, the ankle cup is located behind and above the human heel to fix the human heel together with the base plate. The bottom of the back plate is located inside the ankle cup, and the abutting part protrudes outward toward the outside of the ankle cup so as to abut downward against the top edge of the ankle cup.

[0009] In this technical solution, the bottom of the backplate is located inside the ankle cup, so it can receive the force of the lower leg directly or indirectly (through the snowshoe), so that the backplate can follow the movement of the lower leg in time to provide cushioning when the lower leg swings forward and upward.

[0010] Option 3 is based on Option 1 or Option 2, wherein the contact part is an elastic body.

[0011] In this technical solution, the abutting part is an elastic body, which can provide cushioning when the back plate is reset, that is, when the abutting part abuts against the body again, reducing the impact force of the rigid structure of the fixation device on the human foot.

[0012] Option 4 is based on Option 3. In Option 4, the adjustment device includes an operating component, a connecting component, and a top abutment component. The back plate is also provided with a slide groove extending along its extension direction. The connecting component passes through the slide groove, and its two ends on both sides of the slide groove are respectively provided with a top abutment part and a connecting part. The operating component is connected to the connecting part, and the top abutment component is located between the operating component and the back plate, forming an abutment part. The operating component is also adapted to be operated to abut the top abutment component so that the top abutment component and the top abutment part together clamp the back plate.

[0013] In this technical solution, the adjusting device includes an operating component, a connecting component, and a top abutment component. The back plate also has a groove extending along its extension direction. The connecting component passes through the groove, and its two ends on both sides of the groove are respectively provided with a top abutment portion and a connecting portion. The operating component is connected to the connecting portion, and the top abutment component is located between the operating component and the back plate, forming an abutment portion. The operating component is also adapted to be operated to abut the top abutment component so that the top abutment component and the top abutment portion together clamp the back plate. Therefore, the position of the adjusting device fixed to the back plate can be adjusted by operating the operating component to control whether the top abutment component and the top abutment portion clamp the back plate together, thereby adjusting the position of the adjusting device fixed to the back plate and thus adjusting the position of the back plate. Furthermore, this adjustment method is relatively simple, requiring no screws or tools, and is convenient for users to operate.

[0014] Option 5 is based on Option 4, wherein the operating member is rotatably connected to the connecting part about the second axis, and is provided with a pressing part. The operating member is adapted to be operated so that the pressing part rotates about the second axis between a first position and a second position. In the first position, the pressing part presses against the pressing member so that the pressing member and the pressing part together clamp the back plate. In the second position, the pressing part does not press against the pressing member.

[0015] In this technical solution, the operating member is rotatably connected to the connecting part around the second axis. It is provided with a pressing part. The operating member is adapted to be operated so that the pressing part rotates around the second axis between a first position and a second position. In the first position, the pressing part presses against the pressing member so that the pressing member and the pressing part together clamp the back plate. In the second position, the pressing part does not press against the pressing member. Therefore, the user only needs to control whether the pressing member and the pressing part clamp the back plate together by rotating the operating member, and then control the position of the adjusting device fixed to the back plate. The operation is simple.

[0016] Option 6 is based on Option 4, wherein the back plate is provided with a first tooth facing the top abutment, and the top abutment is provided with a second tooth adapted to mesh with the first tooth.

[0017] In this technical solution, the back plate is provided with a first tooth facing the top abutment, and the top abutment is provided with a second tooth suitable for meshing with the first tooth. Therefore, the meshing of the teeth can prevent the adjustment device from slipping slightly due to vibration or impact in the locked state, thus improving the stability of the lock.

[0018] Scheme 7 is based on Scheme 6, wherein the first tooth and the second tooth are provided with first tooth surfaces and second tooth surfaces spaced apart along the extension direction of the back plate. The first tooth surfaces are perpendicular to the extension direction of the back plate, and the second tooth surfaces connect two adjacent first tooth surfaces and are inclined upward and away from the top abutment.

[0019] In this technical solution, both the first tooth and the second tooth are provided with a first tooth surface and a second tooth surface spaced apart along the extension direction of the back plate. The first tooth surface is perpendicular to the extension direction of the back plate, and the second tooth surface connects two adjacent first tooth surfaces and is inclined upward and away from the top abutment. The first tooth surface can prevent the back plate from sliding down when bearing the force of the human leg. The inclined second tooth surface makes it easy to adjust the angle of the back plate upward when the adjustment device is unlocked. At the same time, it is beneficial to guide the teeth to maintain the engagement state when the abutment part hits the ankle cup.

[0020] Option 8 is based on Option 2, in which the bottom of the backplate does not protrude downwards from the ankle cup.

[0021] In this technical solution, the bottom of the backplate does not protrude downwards from the ankle cup, which helps to avoid motion interference between the bottom of the backplate and the inner wall of the ankle cup when the backplate rotates forward and upward around the first axis, thus facilitating the smooth cushioning stroke of the backplate.

[0022] Option 9 is based on Option 2, wherein the vertical distance between the rear end of the ankle cup and the bottom surface of the base plate is greater than or equal to 10 centimeters.

[0023] In this technical solution, the vertical distance between the rear end of the ankle cup and the bottom surface of the base plate is greater than or equal to 10 cm, which increases the ground clearance of the rear part of the binding and effectively reduces the scraping resistance between the ankle cup and the snow surface when skiing in deep snow or groomed slopes.

[0024] Option 10 is based on Option 1, in which the main body is also provided with an elastic block, which is suitable for abutting against the ski when the main body is fixed to the ski.

[0025] In this technical solution, the main body is also provided with an elastic block. When the main body is fixed to the ski, the elastic block is suitable for abutting against the ski, thus increasing the static friction between the ski binding and the ski, preventing loosening, and absorbing high-frequency vibrations during skiing. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used are briefly described below.

[0027] Figure 1 This is one of the perspective views of the ski bindings in Example 1.

[0028] Figure 2 This is the second perspective view of the ski binding in Example 1.

[0029] Figure 3 This is an exploded view of the ski bindings in Example 1.

[0030] Figure 4 This is a perspective view of the base plate in Example 1.

[0031] Figure 5 This is a perspective view of the backplate in Example 1.

[0032] Figure 6 This is an exploded view of the regulating device in Example 1.

[0033] Figure 7 This is a partial structural diagram of the ski binding adjustment device in Embodiment 1.

[0034] Explanation of key figure labels: Body 100, base plate 110, locking hole 111, second positioning hole 112, protrusion 1121, ankle cup 120, sliding groove 121, first positioning hole 122, elastic block 130; Back plate 200, first tooth 210, first tooth surface 211, second tooth surface 212, connecting hole 220, slide groove 230; Adjustment device 300, operating member 310, pressing part 311, connecting member 320, top abutting part 321, connecting part 322, top abutting member 330, second tooth part 331, abutting part 332; 400 straps. Detailed Implementation

[0035] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and accompanying drawings of this application is for the purpose of distinguishing different objects, not for describing a specific order.

[0036] Unless otherwise specified, in the claims and description, the terms "comprising," "having," and variations thereof mean "including but not limited to."

[0037] In the claims and description, unless otherwise specified, the term "have" means that a technical feature that follows is part of a technical feature that precedes it.

[0038] Unless otherwise specified, the terms “fixed connection” or “relatively fixed” in the claims and description shall be interpreted broadly to mean any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, fixed connection by fasteners, integral connection, direct fixed connection or indirect fixed connection.

[0039] Unless otherwise specified, in the claims and description, the terms “upper,” “lower,” “front,” “rear,” “left,” “right,” etc., indicate directions or positional relationships based on the directions explicitly shown in the drawings.

[0040] Unless otherwise specified in the claims and description, the terms "up / down direction," "front / back direction," and "left / right direction" essentially mean that the up / down direction, front / back direction, and left / right direction are relatively perpendicular to each other; that is, the up / down direction is perpendicular to the front / back direction, the up / down direction is perpendicular to the left / right direction, and the front / back direction is perpendicular to the left / right direction. In this embodiment, "up" refers to the direction away from the surface of the ski, "down" refers to the direction closer to the surface of the ski, "front" refers to the direction of the user's toes, and "back" refers to the direction of the user's heels.

[0041] Unless otherwise specified in the claims and description, the term "extension direction of back panel 200" means the length direction of back panel 200, which, under normal use, extends obliquely upward along the back of the user's lower leg and is perpendicular to the first axis.

[0042] Unless otherwise specified in the claims and description, the term "ankle cup 120" refers to the upwardly protruding arcuate structure portion of the rear of the body 100 for positioning the user's heel and ankle joint area.

[0043] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0044] Example 1 This embodiment provides a ski binding, which includes a body 100, a backplate 200, an adjustment device 300, and a strap 400.

[0045] like Figure 1-4As shown, the main body 100, which serves as the support base for the entire ski binding, includes a base plate 110, an ankle cup 120, and an elastic block 130. The base plate 110 is a generally flat plate-shaped component used to place on the upper surface of the ski and support the body. The left and right sides of the rear of the base plate 110 are provided with locking holes 111 and second positioning holes 112 with a certain extension length. The locking holes 111 are circular through holes, and the second positioning holes 112 are elongated through holes. The locking holes 111 are closer to the front of the main body 100 than the second positioning holes 112. The wall of the second positioning hole 112 protrudes inward to form several protrusions 1121. These protrusions 1121 are spaced apart along the length of the second positioning hole 112, and each protrusion 1121 divides the interior of the second positioning hole 112 into several limiting recesses for locking the pin. The ankle cup 120 is arc-shaped and fixed to the rear of the base plate 110, curving upwards and backwards. The concave surface of the ankle cup 120 faces the user's heel. The vertical distance between the lower rear edge of the ankle cup 120 and the bottom surface of the base plate 110 is greater than or equal to 10 cm. When the user's foot steps on the base plate 110, the ankle cup 120 is located above and behind the user's heel to fix the user's heel together with the base plate 110. Specifically, both ends of the ankle cup 120 are provided with sliding grooves 121 and first positioning holes 122, wherein the extending direction of the sliding grooves 121 is the same as the direction in which the protrusions 1121 are spaced apart. By using a pin to pass through the locking hole 111 and the sliding groove 121, and then using a pin to pass through the first positioning hole 122 and the second positioning hole 112, the ankle cup 120 can be fixed to the base plate 110. In this embodiment, after the pin passes through the first positioning hole 122 and the second positioning hole 112, the pin is confined within the limiting recess formed by the protrusion 1121. When it is necessary to adjust the position of the ankle cup 120 to accommodate people of different body types, since the pin always passes through the first positioning hole 122 of the ankle cup 120, and the extension direction of the sliding groove 121 is parallel to the arrangement direction of the protrusion 1121, it will not interfere with the movement of the ankle cup 120. Therefore, the position of the ankle cup 120 can be adjusted by inserting the pin into different positions within the second positioning hole 112. In this embodiment, there are four elastic blocks 130 located at the four corners of the bottom surface of the base plate 110. They can be made of TPU material. When the body 100 is fixed to the ski, the elastic blocks 130 are deformed under pressure to fit against the ski.

[0046] like Figure 2 , 5As shown, the backplate 200 is designed to fit the back of the user's lower leg and is rotatably connected to the rear of the body 100 about a first axis perpendicular to the vertical direction (in this embodiment, the first axis is approximately parallel to the horizontal direction). The backplate 200 is generally elongated, with its extension direction perpendicular to the first axis. In this embodiment, the bottom of the backplate 200 is approximately arc-shaped, and connecting holes 220 are provided on the left and right sides of the bottom of the backplate 200. Pins passing through the first positioning hole 122 and the second positioning hole 112 can also pass through the connecting holes 220 to rotatably connect the backplate 200 to the rear of the body 100. Multiple connecting holes 220 can be provided to select different positions for rotatably connecting the backplate 200 to the rear of the body 100. In this embodiment, the bottom of the backplate 200 is also located within the arc-shaped cavity formed by the ankle cup 120, that is, the arc-shaped ankle cup 120 is fitted outside the arc-shaped bottom of the backplate 200, and the bottom of the backplate 200 does not protrude downward from the ankle cup 120. The back plate 200 is also provided with a groove 230 extending along its extension direction, and the back plate 200 is also provided with a first tooth 210 on the side away from the human foot (rear side). In this embodiment, the groove 230 is located in the middle of the lower left-right direction of the back plate 200, and the first tooth 210 is arranged around the groove 230. The first tooth 210 is also provided with a plurality of first tooth surfaces 211 and second tooth surfaces 212 arranged at intervals along the extension direction of the back plate 200. The first tooth surfaces 211 are perpendicular to the extension direction of the back plate 200, and the second tooth surfaces 212 connect two adjacent first tooth surfaces 211 and are inclined upward and away from the abutment member 330 described later (generally upward and forward inclined).

[0047] like Figure 5-7As shown, the adjustment device 300 is slidably connected to the back plate 200 and is adapted to slide or be fixed along the extension direction of the back plate 200. It is also provided with an abutment portion 332, which is adapted to abut the body 100 downward. In this embodiment, the abutment portion 332 protrudes outward (rearward) toward the ankle cup 120 so as to abut the top edge of the ankle cup 120 downward. Specifically, the adjustment device 300 includes an operating member 310, a connecting member 320, and a top abutment member 330. The connecting member 320 passes through the slide groove 230 and the top abutment member 330. The two ends of the connecting member 320 are respectively provided with a top abutment portion 321 and a connecting portion 322. The width of the top abutment portion 321 is greater than the width of the slide groove 230, so as to abut the front side of the back plate 200. The operating member 310 is connected to the connecting portion 322. The top abutment member 330 is located between the operating member 310 and the back plate 200, and its lower part forms an abutment portion 332. The operating member 310 is also adapted to be operated to abut the top abutment member 330 so that the top abutment member 330 and the top abutment portion 321 together clamp the back plate 200. In this embodiment, the operating member 310 is rotatably connected to the connecting part 322 (e.g., through a hole-shaft fit) about a second axis (in this embodiment, the second axis is also parallel to the left-right direction). It is provided with a pressing part 311, which is a section of the cam surface or eccentric cylindrical surface on the outer edge of the operating member 310. The top abutment member 330 is also provided with a second tooth 331 facing the first tooth 210 and adapted to mesh with the first tooth 210. The second tooth 331 is also provided with the aforementioned first tooth surface 211 and second tooth surface 212. The operating member 310 is adapted to be operated so that the pressing part 311 rotates about the second axis between a first position and a second position. In the first position, the pressing part 311 abuts against the abutting member 330 so that the abutting member 330 and the abutting part 321 together clamp the back plate 200 (at this time, the first tooth 210 and the second tooth 331 are engaged with each other and cannot move relative to each other), and the adjusting device 300 is fixed relative to the back plate 200. In the second position, the pressing part 311 does not abut against the abutting member 330 (at this time, the first tooth 210 and the second tooth 331 can move relative to each other), and the adjusting device 300 can move relative to the back plate 200 to change its position relative to the back plate 200.

[0048] There are two straps 400, with their ends connected to the left and right sides of the base plate 110 respectively. The straps 400 span the space above the base plate 110 and are used to wrap around and fix the human foot after it is placed on the base plate 110. The straps 400 can adopt existing technologies, such as including ratchet tensioners, toothed belts and cushioning pads, etc., which will not be described in detail.

[0049] like Figure 7 As shown, the working principle of the ski bindings in this embodiment is as follows: by Figure 7For example, when the position of the back plate 200 needs to be adjusted, the operating member 310 is rotated clockwise to make the pressing part 311 rotate to the second position. At this time, the pressing part 311 does not abut against the abutting member 330 (this state is not shown in the figure). The first tooth 210 and the second tooth 331 can move relative to each other. Since the abutting part 332 is limited by the ankle cup 120, the adjusting device 300 cannot move downward relative to the ankle cup 120. Therefore, the back plate 200 can be dragged to make the back plate 200 rotate counterclockwise along its rotation axis, thereby adjusting the position of the back plate 200.

[0050] After the back plate 200 is adjusted, the operating member 310 is rotated counterclockwise to make the pressing part 311 rotate to the first position. At this time, the pressing part 311 presses against the abutting member 330 so that the abutting member 330 and the abutting part 321 together tighten the back plate 200. The first tooth 210 and the second tooth 331 mesh with each other and cannot move relative to each other.

[0051] Since the contact part 332 is limited by the ankle cup 120, the back plate 200 will not rotate clockwise. However, the counterclockwise rotation of the back plate 200 is not limited. Therefore, when the user encounters an obstacle and his body moves forward during skiing, and his lower leg applies an upward pushing force to the back plate 200, the back plate 200 can rotate forward and upward around the first axis with the lower leg, thereby providing cushioning.

[0052] In this embodiment, the backplate 200 is rotatably connected to the rear of the body 100 about a first axis perpendicular to the vertical direction. The extension direction of the backplate 200 is perpendicular to the first axis. The adjustment device 300 is slidably connected to the backplate 200 and is adapted to slide or be fixed along the extension direction of the backplate 200. Therefore, the position of the adjustment device 300 fixed to the backplate 200 can be changed. The adjustment device 300 is also provided with a contact portion 332, which is adapted to abut against the body 100 downward. Therefore, under normal conditions, the contact portion 332 is always abutting against the body 100 downward under the action of gravity. The body 100 can limit the extreme position of the backplate 200 rotating backward and downward. Therefore, changing the position of the adjustment device 300 fixed to the backplate 200 can adjust the position of the backplate 200 relative to the body 100 to accommodate users of different body types. Furthermore, during normal gliding, the contact portion 332 of the adjustment device 300 abuts against the body 100, so that the backplate 200 can withstand the pressure of the lower leg backward to provide rear edge support. When the rear edge jams, causing the user's body to lunge forward and the lower leg to exert a forward and upward pushing force on the back plate 200, the back plate 200 can rotate forward and upward around the first axis with the lower leg. At this time, the abutment part 332 can disengage from the body 100, and the back plate 200 moves with the lower leg to generate a buffer stroke, reducing the peak impact force on the Achilles tendon. Therefore, the ski bindings of this embodiment help to avoid Achilles tendon strains or tears caused by the rear edge getting stuck on an obstacle during high-speed skiing.

[0053] In this embodiment, the bottom of the back plate 200 is located inside the ankle cup 120, so it can receive the force of the lower leg directly or indirectly (through the snowshoe) so that the back plate 200 can follow the movement of the lower leg in time to provide cushioning when the lower leg swings forward and upward.

[0054] In this embodiment, the adjusting device 300 includes an operating member 310, a connecting member 320, and a top abutment member 330. The back plate 200 also has a groove 230 extending along its extension direction. The connecting member 320 passes through the groove 230, and its two ends on both sides of the groove 230 are respectively provided with a top abutment portion 321 and a connecting portion 322. The operating member 310 is connected to the connecting portion 322. The top abutment member 330 is located between the operating member 310 and the back plate 200, forming an abutment portion 332. The operating member 310 is also adapted to be operated to abut the top abutment member 330 so that the top abutment member 330 and the top abutment portion 321 together clamp the back plate 200. Therefore, the position of the adjusting device 300 fixed to the back plate 200 can be adjusted by operating the operating member 310 to control whether the top abutment member 330 and the top abutment portion 321 together clamp the back plate 200, thereby adjusting the position of the back plate 200. Moreover, this adjustment method is relatively simple, does not require screws or tools, and is convenient for users to operate.

[0055] In this embodiment, the operating member 310 is rotatably connected to the connecting part 322 about the second axis. It is provided with a pressing part 311. The operating member 310 is adapted to be operated so that the pressing part 311 rotates about the second axis between a first position and a second position. In the first position, the pressing part 311 presses against the pressing member 330 so that the pressing member 330 and the pressing part 321 together clamp the back plate 200. In the second position, the pressing part 311 does not press against the pressing member 330. Therefore, the user only needs to control whether the pressing member 330 and the pressing part 321 together clamp the back plate 200 by rotating the operating member 310, and then control the position of the adjusting device 300 fixed to the back plate 200. The operation is simple.

[0056] In this embodiment, the back plate 200 is provided with a first tooth 210 facing the top abutment 330, and the top abutment 330 is provided with a second tooth 331 adapted to mesh with the first tooth 210. Therefore, by meshing the teeth, the adjustment device 300 can be prevented from slipping slightly due to vibration or impact in the locked state, thereby improving the stability of the lock.

[0057] In this embodiment, both the first tooth portion 210 and the second tooth portion 331 are provided with a first tooth surface 211 and a second tooth surface 212 spaced apart along the extension direction of the back plate 200. The first tooth surface 211 is perpendicular to the extension direction of the back plate 200. The second tooth surface 212 connects two adjacent first tooth surfaces 211 and is inclined upward and away from the top abutment 330. The first tooth surface 211 can prevent the back plate 200 from sliding down when bearing the force of the human leg. The inclined second tooth surface 212 facilitates the upward adjustment of the angle of the back plate 200 when the adjustment device 300 is unlocked. At the same time, it is beneficial to guide the teeth to maintain the engagement state when the abutment portion 332 hits the ankle cup 120.

[0058] In this embodiment, the bottom of the backplate 200 does not protrude downwards from the ankle cup 120, which helps to avoid motion interference between the bottom of the backplate 200 and the inner wall of the ankle cup 120 when the backplate 200 rotates forward and upward around the first axis, thereby facilitating the smooth cushioning stroke of the backplate 200.

[0059] In this embodiment, the vertical distance between the rear end of the ankle cup 120 and the bottom surface of the base plate 110 is greater than or equal to 10 cm, which increases the ground clearance of the rear part of the binding and effectively reduces the scraping resistance between the ankle cup 120 and the snow surface when skiing in deep snow or on groomed slopes.

[0060] In this embodiment, the body 100 is also provided with an elastic block 130. When the body 100 is fixed to the ski, the elastic block 130 is suitable for abutting against the ski, thus increasing the static friction between the ski binding and the ski, preventing loosening, and absorbing high-frequency vibrations during skiing.

[0061] Example 2 The difference between this embodiment and embodiment one is that the abutting part 332 is an elastic body, or the entire abutting part 330 can be an elastic body.

[0062] In this embodiment, the abutment portion 332 is an elastic body, so it can provide cushioning when the back plate 200 is reset, that is, when the abutment portion 332 abuts against the body 100 again, reducing the impact force of the rigid structure of the fixation device on the human foot.

[0063] The description of the above specification and embodiments is used to explain the scope of protection of this application, but does not constitute a limitation on the scope of protection of this application.

Claims

1. A ski binding, characterized in that, The device includes a body (100), a back plate (200), and an adjustment device (300). The back plate (200) is rotatably connected to the rear of the body (100) about a first axis perpendicular to the vertical direction. The extension direction of the back plate (200) is perpendicular to the first axis. The adjustment device (300) is slidably connected to the back plate (200) and is adapted to slide or be fixed along the extension direction of the back plate (200). The adjustment device (300) is also provided with an abutment part (332), which is adapted to abut against the body (100) downward.

2. A ski binding as described in claim 1, characterized in that, The body (100) is provided with a base plate (110) and an ankle cup (120). When the human foot steps on the base plate (110), the ankle cup (120) is located above and behind the human heel to fix the human heel together with the base plate (110). The bottom of the back plate (200) is located inside the ankle cup (120). The abutment part (332) protrudes outward toward the ankle cup (120) to be suitable for abutting the top edge of the ankle cup (120) downward.

3. A ski binding as described in claim 1 or 2, characterized in that, The contact part (332) is an elastic body.

4. A ski binding as described in claim 3, characterized in that, The adjustment device (300) includes an operating member (310), a connecting member (320), and a top abutment member (330). The back plate (200) is also provided with a groove (230) extending along its extension direction. The connecting member (320) passes through the groove (230). At both ends of the connecting member (320) on both sides of the groove (230), a top abutment part (321) and a connecting part (322) are respectively provided. The operating member (310) is connected to the connecting part (322). The top abutment member (330) is located between the operating member (310) and the back plate (200) and forms the abutment part (332). The operating member (310) is also adapted to be operated to abut the top abutment member (330) so that the top abutment member (330) and the top abutment part (321) together clamp the back plate (200).

5. A ski binding as described in claim 4, characterized in that, The operating member (310) is rotatably connected to the connecting part (322) about the second axis and has a pressing part (311). The operating member (310) is adapted to be operated so that the pressing part (311) rotates about the second axis between a first position and a second position. In the first position, the pressing part (311) abuts against the abutting member (330) so that the abutting member (330) and the pressing part (321) together clamp the back plate (200). In the second position, the pressing part (311) does not abut against the abutting member (330).

6. A ski binding as described in claim 4, characterized in that, The back plate (200) is provided with a first tooth (210) facing the top abutment (330), and the top abutment (330) is provided with a second tooth (331) adapted to mesh with the first tooth (210).

7. A ski binding as described in claim 6, characterized in that, The first tooth (210) and the second tooth (331) are each provided with a first tooth surface (211) and a second tooth surface (212) arranged at intervals along the extension direction of the back plate (200). The first tooth surface (211) is perpendicular to the extension direction of the back plate (200), and the second tooth surface (212) connects two adjacent first tooth surfaces (211) and is inclined upward and away from the top abutment (330).

8. A ski binding as described in claim 2, characterized in that, The bottom of the backplate (200) does not protrude downward beyond the ankle cup (120).

9. A ski binding as described in claim 2, characterized in that, The vertical distance between the rear end of the ankle cup (120) and the bottom surface of the base plate (110) is greater than or equal to 10 cm.

10. A ski binding as described in claim 1, characterized in that, The body (100) is also provided with an elastic block (130), which is adapted to abut against the ski when the body (100) is fixed to the ski.

Images