Shock absorption and buffering device for treadmills with improved efficiency

Abstract

Shock absorption and buffering device for treadmill with improved efficiency (3), comprising a frame (10); several support elements (20) which are attached at intervals to the two inner sides of the frame (10); a running board (30) consisting of a composite wood panel; and Several shock-absorbing blocks (40) made of elastic plastic and designed in the form of transversely arranged ring bodies (41), wherein the ring bodies (41) are fixedly attached with their undersides to the top of the support elements (20), wherein their tops support the underside of the running board (30) from below, wherein the top and bottom of the circular wall of the ring body (41) are each provided with a fastening hole (42), wherein at least one separating rib (43) is provided in the ring body (41) at its maximum horizontal diameter, wherein the two ends of the separating rib (43) are each connected to the inner wall (411) of the ring body (41) via a reinforcing rib (47) of increased thickness, so that the interior of the ring body (41) is divided into an upper and lower space (45, 46),wherein at least one support element (48) is provided between the top and bottom of the separating rib (43) and the inner wall (411) of the ring body (41), wherein, when the shock-absorbing block (40) is compressed by the running board (30) and the ring body (41) is thereby deformed, the two ends of the support element (48) each rest on the separating rib (43) and the inner wall (411) of the ring body (41).

Description

Technical field

[0001] The invention relates to a shock absorption and buffering device for a treadmill with improved efficiency (3), which has several novel shock absorption blocks between the frame and the footboard to effectively absorb the pedaling force on the footboard, reduce the vibration of the frame and achieve the shock absorption and buffering effect of the footboard. State of the art

[0002] The inventor filed a utility model application on June 25, 2025, with application number 202025103586.3 and the title "Shock absorption and buffering device for treadmill with improved efficiency", wherein the shock absorption blocks are designed in the form of transversely arranged ring bodies, wherein the top and bottom of the ring body are each provided with a mounting hole, wherein at least one separating rib is provided in the ring body at its maximum horizontal diameter, wherein the two ends of the separating rib are connected to the inner wall of the ring body, so that the interior of the ring body is divided into an upper and lower space, wherein the separating rib is provided with a through-hole, and wherein a thick reinforcing rib is provided at each of the connection points between the two ends of the separating rib and the inner wall of the ring body.This dampens the user's pedaling force, thus achieving a buffering and shock-absorbing effect. However, the design described above has the following disadvantages: According to reports from buyers after delivery, if the downward force of the footboard specified by the inventor is exceeded for an extended period, the shock-absorbing blocks are subjected to excessive compression and deformation, leading to breakage of the separating rib or damage to the ring body, and eventually to damage to the shock-absorbing blocks. This causes significant problems for users and buyers.

[0003] Therefore, developing an improved shock-absorbing structure with better cushioning and shock absorption is a goal of this industry. Against this backdrop, the inventor developed the invention based on years of experience and after extensive research, prototype testing, and numerous production adjustments and optimizations. Object of the invention

[0004] In the previous shock absorption and buffer device for treadmills, if the downward force specified by the inventor is exceeded by the running board over a longer period of time, excessive compression and deformation of the shock absorption block is caused, which breaks the separating rib or damages the ring body, leading to rapid damage of the shock absorption block.

[0005] The invention provides a more efficient shock-absorbing and buffering device for treadmills, comprising: a frame; several support elements attached at intervals to the two inner sides of the frame; a running deck made of a composite wood panel; and several shock-absorbing blocks made of elastic plastic and designed in the form of transversely arranged ring bodies, wherein the ring bodies are fixed with their undersides to the top of the support elements, and wherein their tops support the underside of the running deck from below, wherein the top and bottom of the circular wall of the ring body are each provided with a fastening hole, and wherein at least one separating rib is provided in the ring body at its maximum horizontal diameter, the separating rib being provided with a through-hole.wherein the two ends of the separating rib are each connected to the inner wall of the ring body via a reinforcing rib of increased thickness, so that the interior of the ring body is divided into an upper and lower space, wherein at least one support element is provided between the upper and lower surfaces of the separating rib and the inner wall of the ring body, wherein, when the shock absorber is compressed by the running board and the ring body is thereby deformed, the two ends of the support element each rest on the separating rib and the inner wall of the ring body.

[0006] The advantages of the invention are as follows: (1) In the event of excessive downward force on the running board and the resulting compression of the shock-absorbing block, the two ends of the support element rest on the inner wall of the ring body or the separating rib. This prevents excessive compression and deformation of the shock-absorbing block, as well as breakage of the separating rib or the ring body, and thus extends its service life. At the same time, this indirectly prevents the running board from colliding with the support elements or even the frame and thus being damaged. (2) In the event of repeated compression and deformation of the shock-absorbing block, the separating rib ensures a rapid return to the original state and thus resistance to deformation even after prolonged use. (3) The separating rib is located at the largest transverse diameter of the ring body. When the shock absorber block is compressed and deformed, the force is distributed evenly to both sides, thus preventing deviation and twisting. Brief description of the drawings Fig. 1 an exploded view of the first preferred embodiment of the invention, Fig. 2 a perspective view of the shock absorption block of the first preferred embodiment of the invention, Fig. 3 a front view of the shock absorber block of the first preferred embodiment of the invention, Fig. 4 a side view of the shock absorption block of the first preferred embodiment of the invention, Fig. 5 a partial sectional view of the shock absorption and buffer device of the first preferred embodiment of the invention, Fig. 6 A representation of the shock absorption and buffer device when compressed by approximately 3 mm of the first preferred embodiment of the invention, Fig. 7 a representation of the shock absorption and buffer device when compressed by approximately 7 mm of the first preferred embodiment of the invention, Fig. 8 A representation of the shock absorption and buffer device when compressed by approximately 12 mm of the first preferred embodiment of the invention, Fig. 9 a perspective view of the shock absorption block of the second preferred embodiment of the invention, Fig. 10 a front view of the shock absorption block of the second preferred embodiment of the invention, Fig. 11 a partial sectional view of the shock absorption and buffer device of the second preferred embodiment of the invention, Fig. 12 a representation of the shock absorption and buffer device when compressed by approximately 3 mm of the second preferred embodiment of the invention, Fig. 13 a representation of the shock absorption and buffer device when compressed by approximately 7 mm of the second preferred embodiment of the invention, Fig. 14 A representation of the shock absorption and buffering device when compressed by approximately 12 mm of the second preferred embodiment of the invention. Ways to implement the invention

[0007] Fig. Figures 1 to 8 show the first preferred embodiment of the invention. The more efficient treadmill shock absorption and buffering device (3) of the invention comprises: a frame 10; several support elements 20, which are attached at intervals to the two inner sides of the frame 10; a running board 30, which consists of a composite wood panel; and Several shock-absorbing blocks 40, made of elastic plastic and designed in the form of transversely arranged ring bodies 41, wherein the ring bodies 41 have a circular or elliptical shape and are firmly attached with their undersides to the top of the support elements 20, wherein their tops support the underside of the running board 30 from below, wherein the top and bottom of the circular wall of the ring body 41 are each provided with a fastening hole 42, wherein at least one separating rib 43 is provided in the ring body 41 at its maximum horizontal diameter, wherein the two ends of the separating rib 43 are each connected to the inner wall 411 of the ring body 41 via a reinforcing rib 47 of increased thickness, so that the interior of the ring body 41 is divided into an upper and lower space 45, 46, wherein the separating rib 43 is provided with a through-hole 44,wherein at least one support element 48 is provided between the upper and lower surfaces of the separating rib 43 and the inner wall 411 of the ring body 41, wherein, when the shock absorber 40 is compressed by the running board 30 and the ring body 41 is thereby deformed, the two ends of the support element 48 each rest on the separating rib 43 and the inner wall 411 of the ring body 41.

[0008] The diameter of the mounting hole 42 of the top of the shock absorber block 40 and the diameter of the through hole 44 of the separating rib 43 are larger than the diameter of the mounting hole 42 of the bottom of the shock absorber block 40.

[0009] One end of the support element 48 is connected to the separating rib 43 and the other end faces the inner wall 411 of the ring body 41.

[0010] Fig. Figures 9 to 14 show the second preferred embodiment of the invention, wherein one end of the support element 48 is connected to the inner wall 411 of the ring body 41 and the other end faces the separating rib 43.

[0011] Based on the structure of the above specific embodiments, assembly and use of the embodiments are described as follows: (1) First preferred embodiment: (I) First, as in the Fig. As shown in Figures 1 to 8, the thickness A of the ring wall of the ring body 41, the thickness B of the separating rib 43, the outer diameter CC, and the axial length DD of the shock-absorbing block 40 can be adjusted to 3.5–6.5 mm, 2.5–5.0 mm, 25–45 mm, and 20–40 mm, respectively, during manufacturing. These are preferred embodiments. However, the dimensions described above represent only a preferred embodiment of the invention for illustrative purposes and do not limit its scope of protection. They can be adapted to customer requirements. (II) Secondly, when all shock-absorbing blocks 40 are actually installed, as in Fig. As shown in Figure 5, the blade of a screwdriver is first inserted successively through the mounting hole 42 of the top of the shock absorber 40 and the through hole 44 of the separating rib 43. Then, the mounting hole 42 of the underside of the shock absorber block 40 is screwed to the top of the support element 20 using a screw 61. (III) After all shock-absorbing blocks 40 have been attached to the top of the support elements 20, the running board 30 is simultaneously placed on all shock-absorbing blocks 40 and fastened by a screw 62 and a U-shaped mounting plate 63 with a screw hole 64 at the mounting hole 42 on the top of the shock-absorbing block 40. This completes the assembly of the running board 30, all shock-absorbing blocks 40 and the support elements 20. (IV) The following describes the testing of a single shock-absorbing block 40 under various pressure loads: (i) As in Fig. As shown in Figure 6, the footboard 30 is pressed downwards with a force of 48-53 kg and the shock absorption block 40 is compressed by approximately 3 mm. (ii) As in Fig. As shown in Figure 7, the footboard 30 is pressed downwards with a force of 85-89 kg and the shock absorption block 40 is compressed by approximately 7 mm. (iii) As in Fig. As shown in Figure 8, the footboard 30 is pressed downwards with a force of 132-136 kg and the shock-absorbing block 40 is compressed by approximately 12 mm. The end of the support element 48, which faces the ring wall 411, rests on the ring wall 411. (2) Second preferred embodiment: As in the Fig. As shown in Figures 9 to 14, the assembly and use are identical to the first preferred embodiment. The main difference of this embodiment is that, under a compressive load of 132-136 kg on the footboard 30 and a compression of approximately 12 mm of the shock-absorbing block 40, the end of the support element 48 facing the separating rib 43 rests on the separating rib 43. (3) Furthermore, another preferred embodiment of the present invention consists in the fact that, depending on customer requirements, two parallel spaced separating ribs 43 are provided within the ring body 41 of the shock absorption block 40, so that the shock absorption block 40 has a greater supporting force to withstand a greater downward force of the footboard 30.

[0012] The invention achieves the following advantages through the design of the embodiment described above: (1) When the user steps onto the footboard 30, the shock-absorbing block 40 is compressed and deformed by the instantaneous downward force of the footboard 30, causing the central separating rib 43 of the shock-absorbing block 40 to simultaneously stretch horizontally and exhibit a restoring force. When the user instantaneously releases the footboard 30, the central separating rib 43 returns to its original position, so that the shock-absorbing block 40 immediately and quickly returns to its original state. As a result, the shock-absorbing block 40 exhibits better elasticity and resilience with repeated use over a longer period and does not deform easily. (2) Continuing the description in the preceding point (1): When the user steps onto the footboard 30, the shock-absorbing block 40 is compressed and deformed by the instantaneous downward force of the footboard 30 above it, the separating rib 43 preventing the upper screw 62 and the lower screw 61 from colliding with each other and causing noise, so that the user has a better quality of use and a better experience when using the treadmill. (3) The two ends of the separating rib 43 are each connected to the inner wall 411 of the ring body 41 via a reinforcing rib 47 of increased thickness. When the shock-absorbing block 40 is compressed, the separating rib 43 is deformed and stretched horizontally, whereby the connection points of the two ends of the separating rib 43 and the inner wall 411 are not easily broken by mutual pulling and are helpful for quickly returning to their original position when released in the opposite direction. In addition, this ensures the service quality of the shock-absorbing block 40 and enables long-term use. (4) Since the separating rib 43 of the shock-absorbing block 40 is located at the largest transverse diameter of the ring body 41, the left and right sides can be subjected to equal stresses when compressed and deformed in actual use and do not bend or twist arbitrarily, so that they are not easily damaged and can be used for a long time. (5) If the user wishes to adjust the shock absorption effect of the footboard 30, the number of mounted shock absorption blocks 40 can be increased or decreased, or the composition of the plastic used in the manufacture of the shock absorption blocks 40 can be changed to achieve different levels of softness and elasticity. (6) Another preferred embodiment of the invention consists in the fact that, if the user has a higher body weight and the footboard 30 needs to have a better shock absorption effect and the shock absorption block 40 needs to withstand a greater forward force, the ring body 41 of the shock absorption block 40 may have two parallel separating ribs 43 inside. (7) When assembling the shock absorber block 40, as described in Fig. As shown in Figure 5, the screwdriver blade and a screw 61 can be passed through the larger-diameter mounting hole 42 on the top of the shock-absorbing block 40 and the larger-diameter through-hole 44 in the separating rib 43. This allows the screw 61 to be screwed simultaneously into the mounting hole 42 on the underside of the shock-absorbing block 40 and the support element 20, so that the structure of the shock-absorbing block 40 does not interfere with the connection between the underside of the shock-absorbing block 40 and the support element 20. The invention thus also offers convenient assembly.

[0013] Therefore, the present invention retains the advantages described in points 1 to 7 of the earlier utility model application No. 202025103586.3 and also achieves the effects described in point 8.

[0014] (8) In the first preferred embodiment in the Fig. 1 to 8 or the second preferred embodiment in the Fig. 9 to 14, the two ends of the support element 48 rest on the inner wall 411 and the separating rib 43 when the running board 30 exerts a downward force of more than 132-136 kg and the shock absorber block 40 is compressed. This prevents excessive compression of the shock absorber block 40 on its left and right sides by the downward force of the running board 30, which could lead to deformation or even breakage of the separating rib 43 or damage to the ring body 41. This extends the service life of the shock absorber block 40. At the same time, it indirectly prevents the running board 30 from colliding with the support elements 20 or even the frame 10 and thus being damaged. Reference symbol list 10 frames 20 support elements 30 Running board 40 shock absorption block 41 Ring bodies 411 Interior wall 42 mounting holes 43 Separating rib 44 Through hole 45 upper room 46 lower room 47 Reinforcing rib 48 support element 61 screw 62 screws 63 U-shaped mounting plate 64 screw holes A wall thickness B Thickness CC outer diameter in cross-section DD axial length

Claims

[1] Efficient shock absorption and buffering device for treadmill (3), comprising a frame (10); several support elements (20) which are attached at intervals to the two inner sides of the frame (10); a running board (30) consisting of a composite wood panel; and Several shock-absorbing blocks (40) made of elastic plastic and designed in the form of transversely arranged ring bodies (41), wherein the ring bodies (41) are fixedly attached with their undersides to the top of the support elements (20), wherein their tops support the underside of the running board (30) from below, wherein the top and bottom of the circular wall of the ring body (41) are each provided with a fastening hole (42), wherein at least one separating rib (43) is provided in the ring body (41) at its maximum horizontal diameter, wherein the two ends of the separating rib (43) are each connected to the inner wall (411) of the ring body (41) via a reinforcing rib (47) of increased thickness, so that the interior of the ring body (41) is divided into an upper and lower space (45, 46),wherein at least one support element (48) is provided between the top and bottom of the separating rib (43) and the inner wall (411) of the ring body (41), wherein, when the shock-absorbing block (40) is compressed by the running board (30) and the ring body (41) is thereby deformed, the two ends of the support element (48) each rest on the separating rib (43) and the inner wall (411) of the ring body (41). [2] Shock absorption and buffer device for treadmill with improved efficiency (3) according to claim 1, characterized by , that the shock-absorbing blocks (40) are circular ring bodies. [3] Shock absorption and buffer device for treadmill with improved efficiency (3) according to claim 1, characterized by , that the shock-absorbing blocks (40) are elliptical ring bodies. [4] Shock absorption and buffer device for treadmill with improved efficiency (3) according to claim 1, characterized by, that two parallel spaced separating ribs (43) are provided within the ring body (41) of the shock absorption block (40). [5] Shock absorption and buffer device for treadmill with improved efficiency (3) according to claim 1, characterized by , that the underside of the shock-absorbing block (40) is attached to the top of the support element (20) by a screw (61). [6] Shock absorption and buffer device for treadmill with improved efficiency (3) according to claim 1, characterized by , that the top of the shock-absorbing block (40) is fastened to the underside of the footboard (30) by a screw (62) and a U-shaped mounting plate (63). [7] Shock absorption and buffer device for treadmill with improved efficiency (3) according to claim 1, characterized by, that the diameter of the mounting hole (42) of the top of the shock-absorbing block (40) and the diameter of the through hole (44) of the separating rib (43) are larger than the diameter of the mounting hole (42) of the bottom of the shock-absorbing block (40). [8] Shock absorption and buffer device for treadmill with improved efficiency (3) according to claim 1, characterized by , that the wall thickness (A), the thickness (B) of the separating rib (43), the outer diameter (CC) in cross-section and the axial length (DD) of the shock-absorbing block (40) are 3.5 - 6.5 mm, 2.5 - 5.0 mm, 25 - 45 mm and 20 - 40 mm. [9] Shock absorption and buffer device for treadmill with improved efficiency (3) according to claim 1, characterized by , that one end of the support element (48) is connected to the separating rib (43) and the other end faces the inner wall (411) of the ring body (41). [10] Shock absorption and buffer device for treadmill with improved efficiency (3) according to claim 1, characterized by , that one end of the support element (48) is connected to the inner wall (411) of the ring body (41) and the other end faces the separating rib (43). [11] Shock absorption and buffer device for treadmill with improved efficiency (3) according to claim 1, characterized by , that the separating rib (43) is provided with a through hole (44).

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