Treadmill frame structure

Abstract

Treadmill frame structure comprising a frame (1), a running board (2) and a belt (3), wherein the frame (1) has a frame-shaped element (11), wherein a motor (12) and a transmission mechanism (13) for driving the belt are provided in the frame (1), wherein the belt (3) is mounted on the frame (1) via the transmission mechanism (13) and runs around the running board (2), wherein the frame-shaped element (11) of the frame (1) is provided with side bars (111) on two opposite sides of the frame (1), characterized in that the running board (2) has buffer strips (21) mounted on the two side bars (111) of the frame and a plurality of support strips (22) mounted between the two buffer strips (21), wherein the two buffer strips (21) are attached to the side bars (111) of the frame (1), whereby the entire running board (2) is supported by the buffering effect of the two buffer strips (21) is buffered.

Description

Field of the InventionThe invention relates to the technical field of sports and fitness equipment, in particular a treadmill frame structure.Prior ArtThe treadmill is a frequently used sports and fitness device. As people's life standard is continuously increased, more and more treadmills are used in the homes of ordinary breeders, and thus, the demands on treadmills are also becoming more and more stringent. Treadmills according to the prior art usually comprise components such as frames, running board and belt. The frame is a frame-shaped structure. The two sides of the running board are attached to the side bars at two opposite sides of the frame. The belt is attached to the frame via the front and rear rollers and runs around the running board. The running board is a support body that supports the runner in running, and the side bars are components that serve to support the running board. The runner stands on the running board via the belt. When the belt rotates, the runner must remain on the running board by running. The running board of the prior art is normally a rigid flat plate which is uncomfortable for the runner. In order to improve walking comfort, a treadmill of the prior art uses springs at local positions under the running board or an elastic rubber pad to achieve cushioning when the rider steps thereon. However, this prior art treadmill has the following disadvantages: Since buffer components such as springs are locally attached and cannot provide buffering for the entire running board, the contact is still hard when the runner steps thereon, which may easily result in impacts and damage to the knee and ankle joints of the runner and thus is uncomfortable for the runner.Object of the InventionThe object of the invention is to overcome the deficiencies of the prior art and to provide a treadmill frame structure. Structural improvements allow the entire running board to be buffered, thereby avoiding damage to the knee and ankle joints of the runner from hard contact when the runner steps on the running board.The technical solution of the invention is as follows: a treadmill frame structure comprising a frame, a running board, and a belt, the frame having a frame-shaped member, wherein a motor and a transmission mechanism for driving the belt are provided in the frame, the belt being mounted to the frame via the transmission mechanism and extending around the running board, wherein the frame-shaped member of the frame is provided with side rods on two opposite sides of the frame, wherein the running board has buffer strips mounted on the two side rods of the frame, a plurality of support strips mounted between the two buffer strips, a thin friction-proof plate on the plurality of support strips, and a thin buffer plate between the thin friction-proof plate and the plurality of support strips, wherein the entire running board is buffered by the buffer action of the two buffer strips and the thin buffer plate.The two buffer strips are provided with recesses which penetrate the underside, wherein a fastening piece is provided in each of the recesses, wherein the two buffer strips are fastened by the fastening pieces to the corresponding side bars of the frame.The plurality of support strips are strip-shaped plates having substantially the same width. The plurality of support strips includes at least one large strip-shaped plate having a larger width. One end of the thin friction plate is provided with fixing holes and connected to the first or the last support strip at the corresponding position of the plurality of support strips by screws, the other end of the thin friction plate is mounted on the last or the first support strip at the corresponding position of the plurality of support strips, the last or the first support strip being provided with a guide pressure plate at the corresponding position of the plurality of support strips, the guide pressure plate pressing against the other side of the thin friction plate.The buffer thin plate is fixed to respective positions of the plurality of support strips and thus clamped between the friction-proof thin plate and the plurality of support strips. The running board further includes two pressing strips, the two pressing strips being disposed on the upper surfaces of the two buffer strips and pressing against the two ends of the plurality of support strips, and the two ends of the two pressing strips being fixed to the support strips at corresponding positions of the plurality of support strips.The upper surfaces of the two buffer strips are each provided with grooves open to the inside, the two ends of the plurality of support strips are provided with shoulders, and the two ends of the plurality of support strips are inserted through the shoulders into the corresponding grooves.The shoulders at both ends of the plurality of support strips are formed on one or both sides of the ends of the respective support strips.Compared with the prior art, the advantages of the invention are as follows:The treadmill frame structure of the invention uses the running board having buffer strips mounted on the two side bars of the frame, a plurality of support strips mounted between the two buffer strips, a thin friction resistant plate on the plurality of support strips, and a thin buffer plate between the thin friction resistant plate and the plurality of support strips. The two buffer strips are attached to the side bars of the frame, whereby the entire running board is buffered by the buffer action of the two buffer strips and the thin buffer plate. By inserting the two sides of the running board into the buffer strips and providing the thin friction-proof plate and the thin buffer plate on the support strips, elastic buffering is realized for the entire running board, whereby damage to the knee and ankle joints of the runner due to hard contact is avoided when the runner steps on the running board. Moreover, the thin friction-proof plate prevents the treadmill from wearing the buffer thin plate, thereby preventing the buffering effect of the treadmill from being lowered, so that the life of the treadmill is increased.The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. However, the treadmill frame structure of the present invention is not limited to the embodiments.Brief Description of the DrawingsFIG. 1 is a perspective view of the first embodiment of the invention, FIG. 2 is a perspective view of the first embodiment of the invention (the belt and running board are separated from the frame), FIG. 3 is an exploded view of the running board of the invention, FIG. 4 is an enlarged view of the zone A in FIG. 3 , FIG. 5 is an enlarged view of the zone B in FIG. 3 , FIG. 6 is an exploded view of the running board of the second embodiment of the invention, FIG. 7 is an exploded view of the running board of the third embodiment of the invention, FIG. 8 is an exploded view of the running board of the fourth embodiment of the invention.DESCRIPTION OF THE PREFERRED EMBODIMENTSEmbodiment 1Figs. 1 to 5 show a treadmill frame structure comprising a frame 1, a running board 2 and a belt 3. The frame 1 has a frame-shaped element 11. In the frame 1, a motor 12 and a transmission mechanism 13 for driving the belt are provided. The belt 3 is mounted on the frame 1 via the transmission mechanism 13 and extends around the running board 2. The frame-shaped member 11 of the frame 1 is provided with side bars 111 at two opposite sides of the frame 1. The running board 2 includes buffer strips 21 mounted on the two side bars 111 of the frame, a plurality of support strips 22 mounted between the two buffer strips 21, a thin friction-proof plate 23 on the plurality of support strips 22, and a thin buffer plate 24 between the thin friction-proof plate 23 and the plurality of support strips 22. The two buffer strips 21 are fixed to the side bars 111 of the frame 1, whereby the entire running board 2 is buffered by the buffer action of the two buffer strips 21 and the thin buffer plate 24.In this embodiment, the two buffer strips 21 are provided with recesses 211 which penetrate the underside. In each of the recesses 211, a fastening piece 25 is provided. The two buffer strips 21 are fastened by the fastening pieces 25 to the corresponding side bars 111 of the frame 1. In this embodiment, the plurality of support strips 22 are strip-shaped plates having substantially the same width.In this embodiment, the plurality of support strips 22 include at least one large strip-shaped plate having a larger width. Specifically, one support strip 221 of the plurality of support strips 22 is a large strip-shaped plate having a larger width.In this embodiment, one end of the thin friction plate 23 is provided with fixing holes 231 and is connected to the first support strip 221 at the corresponding position of the plurality of support strips 22 by screws 281. The other end of the thin non-friction plate 23 is mounted on the last support strip 222 at the corresponding position of the plurality of support strips 22. The last support strip 222 at the corresponding position of the plurality of support strips 22 is provided with a guide pressure plate 26. The guide pressure plate 26 is fixed by bolts 282. The guide pressure plate 26 presses against the other side of the thin friction plate 23.In this embodiment, the buffer thin plate 24 is fixed to respective positions of the plurality of support strips 22, and thus is sandwiched between the friction-proof thin plate 23 and the plurality of support strips 22.In this embodiment, the running board 2 also has two pressure bars 27. The two pressing strips 27 are disposed on the upper surfaces of the two buffer strips 21 and press against the two ends of the plurality of support strips 22, and the two ends of the two pressing strips 27 are fastened to the support strips 221 and 222 at corresponding positions of the plurality of support strips 22 by screws 283.In this embodiment, the upper surfaces of the two buffer strips 21 are each provided with grooves 213 which are open to the inside. The two ends of the plurality of support strips 22 are provided with shoulders 223. The two ends of the plurality of support strips 22 are inserted through the shoulders 223 into the corresponding grooves 213.In this embodiment, the shoulders 223 are formed at the both ends of the plurality of support strips 22 at the both sides of the ends of the respective support strips.The treadmill frame structure of the invention uses the running board 2 having buffer strips 21 mounted on the two side bars 111 of the frame, a plurality of support strips 22 mounted between the two buffer strips 21, a thin friction resistant plate 23 on the plurality of support strips 22, and a thin buffer plate 24 between the thin friction resistant plate 23 and the plurality of support strips 22. The two buffer strips 21 are fixed to the side bars 111 of the frame 1, whereby the entire running board 2 is buffered by the buffer action of the two buffer strips 21 and the thin buffer plate 24. By arranging the two buffer strips 21 on both sides of the running board 2 and providing the thin friction-proof plate 23 and the thin buffer plate 24 on the support strips, elastic buffering is realized for the entire running board 2, thereby preventing damage to the knee and ankle joints of the runner due to hard contact when the runner steps on the running board. Moreover, the thin friction-proof plate 23 prevents the treadmill 3 from wearing the thin buffer plate 24, thereby preventing the buffering effect of the treadmill from being lowered, so that the life of the treadmill is increased.Embodiment 2As shown in FIG. 6, the treadmill frame structure of the invention is different from that in Embodiment 1 in that the shoulders 223 of the plurality of support strips 22 are provided only on one side of the ends of the respective support strips.Embodiment 3As shown in FIG. 7, the treadmill frame structure of the invention is different from that in Embodiment 1 in that the upper surfaces of the two buffer strips 21 are each provided with a continuous step structure 212. The lower surfaces of the pressing strips 27 are each provided with a plurality of ribs 271 to intermittently fix the plurality of supporting strips 22 by the plurality of ribs 271.Embodiment 4As shown in FIG. 8, the treadmill frame structure of the invention is different from that in Embodiment 1 in that another support strip 222 of the plurality of support strips 22 is wider than the other plurality of support strips 22. The two ends of the other support strip 222 are located on the step structures 212 of the buffer strips 21.The above description merely illustrates preferred embodiments of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to the preferred embodiments, it is not intended to limit the present invention. Any skilled person can use the above-disclosed technical content to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention or changing it to an equivalent embodiment. Therefore, all simple modifications, equivalent changes, and modifications made in the above embodiments based on the technical spirit of the present invention without departing from the content of the technical solution of the present invention fall within the scope of the technical solution of the present invention.

Claims

A treadmill frame structure comprising a frame (1), a running board (2) and a belt (3), the frame (1) having a frame-shaped member (11), wherein a motor (12) and a transmission mechanism (13) for driving the belt are provided in the frame (1), the belt (3) being mounted to the frame (1) via the transmission mechanism (13) and extending around the running board (2), wherein the frame-shaped member (11) of the frame (1) is provided with side bars (111) at two opposite sides of the frame (1), characterized in that the running board (2) has buffer strips (21) mounted on the two side bars (111) of the frame and a plurality of support strips (22) mounted between the two buffer strips (21), wherein the two buffer strips (21) are attached to the side bars (111) of the frame (1), whereby the entire running board (2) is buffered by the buffer action of the two buffer strips (21).Treadmill frame structure according to claim 1, characterized in that the two buffer strips (21) are provided with recesses (211), which penetrate the underside, wherein a fastening piece (25) is provided in each of the recesses (211), wherein the two buffer strips (21) are fastened by the fastening pieces (25) to the corresponding side rods (111) of the frame (1).Treadmill frame structure according to claim 1, characterized in that the plurality of support strips (22) are strip-shaped plates with substantially the same width.Treadmill frame structure according to claim 1, characterized in that the plurality of support strips (22) comprise at least one large strip-shaped plate with a larger width.The treadmill frame structure of claim 1, characterized bya thin friction resistant plate (23) on the plurality of support strips (22) and a thin buffer plate (24) between the thin friction resistant plate (23) and the plurality of support strips (22), wherein the entire running board (2) is buffered by the buffering action of the two buffer strips (21) and the thin buffer plate (24).The treadmill frame structure according to claim 5, characterized in that one end of the thin non-friction plate (23) is provided with fastening holes (231) and connected to the first or the last support strip (221, 222) at the corresponding position of the plurality of support strips (22) by screws (281), the other end of the thin non-friction plate (23) is mounted on the last or the first support strip at the corresponding position of the plurality of support strips (22), the last or the first support strip being provided with a guide pressure plate (26) at the corresponding position of the plurality of support strips (22), the guide pressure plate (26) pressing against the other side of the thin non-friction plate (23).Treadmill frame structure according to claim 6, characterized in that the thin buffer plate (24) is fixed at corresponding positions of the plurality of support strips (22) and thus clamped between the thin friction resistant plate (23) and the plurality of support strips (22).The treadmill frame structure according to claim 1, characterized in that the running board (2) further comprises two pressing strips (27), the two pressing strips (27) being disposed on the upper surfaces of the two buffer strips (21) and pressing against the two ends of the plurality of support strips (22), and the two ends of the two pressing strips (27) being fixed to the support strips (221, 222) at corresponding positions of the plurality of support strips (22).The treadmill frame structure according to claim 8, characterized in that the upper surfaces of the two buffer strips (21) are each provided with a continuous step structure (212), wherein the two ends of the plurality of support strips (22) are located on the step structures (212) of the buffer strips (21), and wherein the lower surfaces of the pressure strips (27) are each provided with a plurality of ribs (271) to intermittently fix the plurality of support strips (22) by the plurality of ribs (271).The treadmill frame structure according to claim 8, characterized in that the upper surfaces of the two buffer strips (21) are respectively provided with grooves (213) open to the inside, the two ends of the plurality of support strips (22) are provided with shoulders (223), and the two ends of the plurality of support strips (22) are inserted through the shoulders (223) into the corresponding grooves (213).Treadmill frame structure according to claim 10, characterized in that the shoulders (223) are formed at the two ends of the plurality of support strips (22) on one or both sides of the ends of the respective support strips.

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