Novel snowboard core
By setting a mounting groove for reinforcing wood strips on the side of the ski core and installing reinforcing wood strips, the problem of insufficient side support and torsional strength of the skis is solved, achieving higher support and torsional strength, and improving the handling precision and stability of the skis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIHAI DANHONG SPORTS GOODS
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-19
AI Technical Summary
The existing ski cores lack sufficient lateral support and torsional strength, resulting in poor handling precision and stability. Furthermore, the edges are not securely fixed and are prone to loosening or falling off due to stress concentration.
A groove for installing reinforcing wood strips is provided on the side of the ski core, and reinforcing wood strips that are fixedly connected to the core are installed in the groove, forming a continuous force transmission path, avoiding stress concentration, and enhancing side support and torsional resistance.
By reinforcing the wooden strips, the skis have no cross-sections or seams on the sides, significantly improving support and torsional resistance, ensuring stable edge fixation, and enhancing the skis' handling precision and stability.
Smart Images

Figure CN224252064U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ski technology, specifically a novel ski core. Background Technology
[0002] Existing ski cores consist of several wooden strips arranged closely along the width (lateral) of the ski, glued and pressed together. Each strip is divided into upper and lower sections along its length, which are then glued together. After the core is formed, it needs to be cut according to the ski's outline. Because the left and right sides of the ski are concave arcs, and the degree of concavity varies depending on the ski type, the strips along the left and right edges, or several strips near the edges, are cut diagonally, creating discontinuous fiber cross-sections. The seams where the upper and lower sections of the strips meet at the edges may also be cut. The shape of the ski core after cutting is as follows: Figure 1 As shown;
[0003] The problems with this structure are as follows: First, the cross-section and joints of the side strips of the ski result in poor side support and torsional rigidity, which are particularly important as they directly affect the ski's handling precision and stability. Second, the ski core requires the installation of metal edges, which rely on the support of the wooden strips for fixation. The wooden strips at the cut surface cannot evenly distribute stress, making the edges prone to cracking under stress. After long-term use, the adhesive layer at the cross-section of the wooden strips may fail due to fatigue, causing the edges to loosen or fall off. Third, if the joint between the upper and lower sections of the wooden strips is located in the cut area, the adhesive layer at the joint may be partially missing due to the cut, further reducing the side support. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a new type of ski core that has a simple structure and enhances the lateral support and torsional resistance of the ski.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A novel ski core is characterized in that: the left and right sides of the ski core extend inward to form reinforcing wood strip mounting grooves, and reinforcing wood strips are provided in the mounting grooves and fixedly connected to the ski core; when the ski core is cut, it is cut inward on the original side contour to form reinforcing wood strip mounting grooves to accommodate the reinforcing wood strips. The setting of the reinforcing wood strips ensures that the sides of the finished ski core are free of cross-sections and splicing seams, which can greatly enhance the support and torsional resistance of the ski sides and also greatly improve the fixing effect of the side edges.
[0007] The dimensions of the reinforcing wood strips in this invention are matched with the dimensions of the reinforcing wood strip mounting grooves to ensure the integrity of the ski core and the support of the sides.
[0008] The reinforcing wood strip mounting groove of this utility model has a length that extends along the side length of the ski core, ensuring the support and torsional resistance of the ski core.
[0009] The reinforcing wood strip mounting groove and the length of the reinforcing wood strip described in this utility model extend continuously from the starting position of the side edge at the front end of the ski core to the ending position of the side edge at the rear end of the ski core. By setting the reinforcing wood strip mounting groove and the reinforcing wood strip with the same length as the side edge of the ski core, the reinforcing wood strip can continuously cover the entire side edge of the ski core, so that the entire side edge of the ski core has no cross-sectional structure, forming a continuous force transmission path, avoiding the generation of stress concentration points, and further ensuring the support and torsional resistance of the ski core.
[0010] The bottom shape of the reinforcing wood strip installation groove of this utility model is an inwardly concave arc shape that matches the side of the ski core. The reinforcing wood strip installation groove is set with equal width along its length direction; it is easy to process and cut, and also allows reinforcing wood strips of equal width to be installed in the groove.
[0011] The reinforcing wooden strips of this invention are set at equal widths along their length; they are easy to process and form a continuous, equal-strength support structure, resulting in a uniform distribution of lateral support force in the ski core.
[0012] The reinforcing wooden strips described in this invention are glued to the core of the ski, forming a complete structure with the ski core.
[0013] The inner side, front end, and rear end of the reinforcing wooden strip described in this invention are all glued to the core of the ski board, ensuring the integrity and tightness of the bond.
[0014] The beneficial effects of this utility model are as follows: When cutting the ski core, the original side contour is cut inward to form a groove for installing reinforcing wood strips. The setting of reinforcing wood strips ensures that the side of the ski core after processing has no cross-sections or splicing seams, which can greatly enhance the support and torsional resistance of the ski side, and also greatly improve the fixing effect of the side edge. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a ski core after cutting using existing technology.
[0016] Figure 2 This is a schematic diagram of the structure of the ski core cutting process of this utility model, which involves further inward cutting to form a groove for installing reinforcing wooden strips based on existing technology.
[0017] Figure 3This is a schematic diagram of the structure of the ski core after cutting.
[0018] Figure 4 This is a schematic diagram of the structure for installing reinforcing wooden strips in the reinforcing wooden strip mounting groove of this utility model.
[0019] Attached diagram labels: Upper section of wood strip -101, Lower section of wood strip -102, Left side wood strip one -103, Upper left oblique section one -1031, Lower left oblique section one -1032, Left side wood strip two -104, Upper left oblique section two -1041, Lower left oblique section two -1042, Right side wood strip one -105, Upper right oblique section one -1051, Lower right oblique section one -1052, Right side wood strip two -106, Upper right oblique section two -1061, Lower right oblique section two -1062;
[0020] Left side of the board - 201, right side of the board - 202, front outer arc edge - 203, rear outer arc edge - 204, left front inner end face - 205, left rear inner end face - 206, right front inner end face - 207, right rear inner end face - 208;
[0021] Left reinforcing wood strip - 301, right reinforcing wood strip - 302;
[0022] Left inner side of the plate -401, right inner side of the plate -402;
[0023] Left reinforcing wood strip mounting groove-501, right reinforcing wood strip mounting groove-502. Detailed Implementation
[0024] The present invention will now be described in conjunction with the accompanying drawings and embodiments.
[0025] As attached Figure 1 As shown, attached Figure 1 The structure of an existing ski core is disclosed. The ski core includes several wooden strips arranged closely along the width (lateral) direction of the ski and glued together. Each wooden strip is divided into an upper section 101 and a lower section 102 along its length, and the upper section 101 and the lower section 102 are fixed by adhesive. In this embodiment, the joints of the upper section 101 and the lower section 102 of each wooden strip are located at different positions and are not at the same cross section to ensure the overall strength of the ski. After the ski core is formed, it needs to be cut according to the outline shape of the ski. Since the shape of the left and right sides of the ski is an inwardly concave arc, and the degree of inward concavity of the two sides of different ski types is also different, after cutting, the wooden strips on the left and right edges of the ski core or several wooden strips near the edge are cut obliquely to form a discontinuous fiber cross section, and the joints of the upper and lower sections of the wooden strips at the edge may also be cut.
[0026] From the appendix Figure 1As shown in the diagram, from the left side of the ski core inwards, the left wooden strip 103 and the left wooden strip 2 104 are arranged in sequence; from the right side of the ski core inwards, the right wooden strip 105 and the right wooden strip 2 106 are arranged in sequence. During the processing of the ski core sides, the left wooden strip 103, the left wooden strip 2 104, the right wooden strip 105, and the right wooden strip 2 106 all form oblique cross-sections, such as the upper left oblique cross-section 1031, the lower left oblique cross-section 1032, the upper left oblique cross-section 2 1041, the lower left oblique cross-section 2 1042, the upper right oblique cross-section 1051, the lower right oblique cross-section 1052, the upper right oblique cross-section 2 1061, and the lower right oblique cross-section 2 1062. Cutting also extends to the splicing joints of the upper and lower sections of the left wooden strip 2 104 and the right wooden strip 2 106. (Attached) Figure 1 This is just an example; the specific width of each wooden strip, the shape of the side cut, the number of wooden strips cut during the side cut, and the bevel formed by the side cut will be determined according to the actual model of the ski.
[0027] As attached Figure 2-4 As shown, a novel ski core is disclosed. The outer contour of the ski core includes a front outer arc edge 203, a rear outer arc edge 204, a left side edge 201, and a right side edge 202. The left side edge 201 of the ski core extends inward to form a left reinforcing wood strip mounting groove 501, and the right side edge 202 extends inward to form a right reinforcing wood strip mounting groove 502. A left reinforcing wood strip 301 is provided in the left reinforcing wood strip mounting groove 501 and is fixedly connected to the ski core. A right reinforcing wood strip 302 is provided in the right reinforcing wood strip mounting groove 502 and is fixedly connected to the ski core. When the ski core is cut, it is cut inward from the original side contour to form the reinforcing wood strip mounting groove to accommodate the reinforcing wood strip. The setting of the reinforcing wood strip ensures that the side edge of the finished ski core has no cross-section or splicing seam, which can greatly enhance the support and torsional resistance of the ski side and also greatly improve the fixing effect of the side edge.
[0028] The side position of the ski core after original processing and cutting is as follows Figure 1 , Figure 2 As shown in the diagram, the left side 201 and right side 202 of the middle plate are as follows: The positions of the side edges after processing and cutting in this application are as follows... Figure 3 As shown in the diagram, the left inner side 401 and the right inner side 402 of the middle plate form a left reinforcing wood strip mounting groove 501 on the left side and a right reinforcing wood strip mounting groove 502 on the right side.
[0029] The dimensions of the left reinforcing wood strip 301 are matched with the dimensions of the left reinforcing wood strip mounting groove 501, and the dimensions of the right reinforcing wood strip 302 are matched with the dimensions of the right reinforcing wood strip mounting groove 502; to ensure the integrity of the ski core and the support of the sides.
[0030] The reinforcing wood strip mounting groove and the length of the reinforcing wood strip extend along the side length direction of the ski core; in this embodiment, as shown... Figure 2 and Figure 3 As shown, the left reinforcing wood strip mounting groove 501 extends continuously from the starting position of the left side edge 201 of the board to the ending position of the left side edge 201 of the board, and the right reinforcing wood strip mounting groove 502 extends continuously from the starting position of the right side edge 202 of the board to the ending position of the right side edge 202 of the board; as Figure 4 As shown, the dimensions of the left reinforcing strip 301 match the dimensions of the left reinforcing strip mounting groove 501. The left reinforcing strip 301 extends continuously from the starting position of the left side edge 201 of the ski to the ending position of the left side edge 201 of the ski, and the right reinforcing strip 302 extends continuously from the starting position of the right side edge 202 of the ski to the ending position of the right side edge 202 of the ski. By setting the reinforcing strip mounting groove and reinforcing strip with the same length as the side edge of the ski core, the reinforcing strip can continuously cover the entire side edge of the ski core, so that the entire side edge of the ski core has no cross-sectional structure, forming a continuous force transmission path, avoiding the generation of stress concentration points, and further ensuring the support and torsional resistance of the ski core.
[0031] The bottom of the groove formed by the left reinforcing wood strip mounting groove 501 is the left inner side 401 of the board, and the left inner side 401 of the board is a concave arc shape that matches the left side 201 of the board. The bottom of the groove formed by the right reinforcing wood strip mounting groove 502 is the right inner side 402 of the board, and the right inner side 402 of the board is a concave arc shape that matches the right side 202 of the board. The left reinforcing wood strip mounting groove 501 and the right reinforcing wood strip mounting groove 502 are set with equal width along their length direction. They are easy to process and cut, and also allow reinforcing wood strips of equal width to be installed in the grooves.
[0032] The left reinforcing wood strip 301 and the right reinforcing wood strip 302 are set at equal widths along their length; they are easy to process and form a continuous, equal-strength support structure, resulting in a uniform distribution of lateral support force in the ski core.
[0033] In this embodiment, the left reinforcing wood strip 301 and the right reinforcing wood strip 302 are both made of whole pieces of wood.
[0034] The left reinforcing wood strip 301 and the right reinforcing wood strip 302 are respectively glued to the ski core, forming a complete structure with the ski core.
[0035] In this embodiment, the inner side of the left reinforcing wood strip 301 is glued to the left inner side of the board 401, the front end face of the left reinforcing wood strip 301 is glued to the left front inner end face 205 of the ski core, and the rear end face of the left reinforcing wood strip 301 is glued to the left rear inner end face 206 of the ski core.
[0036] The inner side of the right reinforcing wood strip 302 is glued to the right inner side 402 of the board, the front end face of the right reinforcing wood strip 302 is glued to the right front inner end face 207 of the ski core, and the rear end face of the right reinforcing wood strip 302 is glued to the right rear inner end face 208 of the ski core; ensuring the integrity and tightness of the bonding.
[0037] During the processing of this utility model:
[0038] 1. Cut the spliced and glued ski core according to the ski model, shape and size requirements. Based on the original shape and size of the left side 201 and right side 202 of the ski, continue to cut inward along the width of the ski to form a left reinforcing wood strip installation groove 501 and a right reinforcing wood strip installation groove 502 with equal width along the length of the ski. The bottom of the left reinforcing wood strip installation groove 501 is the left inner side 401 of the ski, and the bottom of the right reinforcing wood strip installation groove 502 is the right inner side 402 of the ski.
[0039] 2. Push the left reinforcing wood strip 301 into the left reinforcing wood strip mounting groove 501 and fix the inner side of the left reinforcing wood strip 301 to the left inner side 401 of the board with adhesive. The front end face of the left reinforcing wood strip 301 is fixed to the left front inner end face 205 of the ski core with adhesive, and the rear end face of the left reinforcing wood strip 301 is fixed to the left rear inner end face 206 of the ski core with adhesive. Push the right reinforcing wood strip 302 into the right reinforcing wood strip mounting groove 502 and fix the inner side of the right reinforcing wood strip 302 to the right inner side 402 of the board with adhesive. The front end face of the right reinforcing wood strip 302 is fixed to the right front inner end face 207 of the ski core with adhesive, and the rear end face of the right reinforcing wood strip 302 is fixed to the right rear inner end face 208 of the ski core with adhesive. In this embodiment, the left reinforcing wood... Strip 301 and right reinforcing strip 302 are straight, long strips of wood. During the process of pushing the left reinforcing strip 301 into the left reinforcing strip mounting groove 501, the left reinforcing strip 301 is bent into an arc shape that matches the shape of the left reinforcing strip mounting groove 501 by pushing it with a tool. During the process of pushing the right reinforcing strip 302 into the right reinforcing strip mounting groove 502, the right reinforcing strip 302 is bent into an arc shape that matches the shape of the right reinforcing strip mounting groove 502 by pushing it with a tool. Alternatively, the left reinforcing strip 301 and right reinforcing strip 302 can be cut or shaped into arc shapes that match the shape of the reinforcing strip mounting grooves first, and then the left reinforcing strip 301 can be directly installed into the left reinforcing strip mounting groove 501, and the right reinforcing strip 302 can be installed into the right reinforcing strip mounting groove 502.
Claims
1. A novel ski core, characterized in that: The left and right sides of the ski core extend inward to form a reinforcing wood strip mounting groove, in which a reinforcing wood strip is provided and fixedly connected to the ski core.
2. The novel ski core according to claim 1, characterized in that: The dimensions of the reinforcing wood strip are matched with the dimensions of the reinforcing wood strip mounting groove.
3. The novel ski core according to claim 2, characterized in that: The reinforcing wood strip mounting groove and the length of the reinforcing wood strip extend along the side length direction of the ski core.
4. The novel ski core according to claim 3, characterized in that: The reinforcing wood strip installation groove and the length of the reinforcing wood strip extend continuously from the side starting position at the front end of the ski core to the side ending position at the rear end of the ski core.
5. A novel ski core according to claim 1, 2, 3, or 4, characterized in that: The bottom shape of the groove formed by the reinforcing wood strip installation groove is an inwardly concave arc shape that matches the side of the ski core, and the reinforcing wood strip installation groove is set with equal width along its length.
6. The novel ski core according to claim 5, characterized in that: The reinforcing wooden strips are set at equal widths along their length.
7. A novel ski core according to claim 1, 2, 3, 4, or 6, characterized in that: The reinforcing wood strips are glued to the core of the ski.
8. A novel ski core according to claim 7, characterized in that: The inner side, front end, and rear end of the reinforcing wood strip are all glued to the ski core.