Labor-saving folding pedal

Abstract

The present invention relates to the technical field of pedals and discloses a labor-saving folding pedal, which includes a pedal plate and a labor-saving rod, one end of which is hinged laterally to a bicycle shift crank and the other end of which is hinged vertically to the pedal plate, and the vertical hinge connection ends of the labor-saving rod and the pedal plate are respectively provided with corresponding load limiting structures. According to the labor-saving folding pedal of the present invention, by providing the labor-saving rod, the pedal has a labor-saving function, and by providing the load limiting structure, the problem that the lateral size of the existing pedal plate is large after folding is solved.

Description

[Technical field]

[0001] The present invention relates to the technical field of pedals, and in particular to a labor-saving folding pedal. [Background technology]

[0002] The smaller the lateral size of the bicycle pedal after folding, the more convenient it is, but the lateral hinge connection shaft of the existing folding pedal, i.e., the pedal plate shaft, is installed inside the pedal plate, and the thickness of the pedal plate limits the outer diameter size of the bearing mounted on the pedal plate shaft, and the outer diameter of the bearing and the length of the pedal plate shaft are proportional to the load that can be applied, so that in order to obtain a certain load force, the pedal plate shaft needs to be designed to be long, and because the pedal plate shaft is long, the lateral size of the pedal after folding is about 50 mm, and naturally, such a folded size does not provide relatively good convenience. In order to further reduce the size of the pedal after folding, quick release pedals have been invented, and although the lateral size of the base left on the crank of the quick release pedal is small, there are problems with storage and transportation after the pedal is removed. For example, in the patent with application number CN201921667060.3, the added labor-saving rod can save labor, but it has no folding function, and in the patents with application numbers CN200420093884.1 and CN200620061687.0, the lower edge of the vertical hinge connection end of the pedal plate is provided with a hinge connection shaft, and the upper edge is provided with a limiting block, and the distance between the hinge connection shaft hole and the limiting block constitutes a load moment arm as a single limiting structure, and the load force of the hinge connection shaft is inversely proportional to the distance from the hinge connection shaft to the limiting block. In order to prevent the hinge connection bearing from being subjected to a large load, the distance between the limiting block and the hinge connection shaft is set far away, so that the pedal plate becomes very thick, and it is inevitable that it will interfere with the crank after folding, and in order to stabilize the folding and unfolding state of the pedal, a limiting hole, a steel ball and a spring member are further provided, which makes the structure complicated. Summary of the Invention [Problem to be solved by the invention]

[0003] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a labor-saving folding pedal to solve at least one of the above problems existing in the prior art. [Means for solving the problem]

[0004] To achieve the above objectives, the present invention uses the following technical solutions:

[0005] The energy-saving folding pedal has a energy-saving rod between the pedal plate and the crank, which provides the pedal with an energy-saving function. The energy-saving rod and the pedal plate are provided with corresponding load limiting structures at their vertical hinge connection ends. ,vertical Since the pedaling load is not applied to the vertical hinge connection shaft, and the load limiting structure completely bears the pedaling load and avoids the problem of the load on the vertical hinge connection shaft, the load moment arm can be greatly shortened, and the load moment arm is expanded to the distance from the lower edge to the upper edge of the pedal plate, and compared with a single limiting structure, the surplus length of the load moment arm is the distance from the center of the vertical hinge connection shaft to the lower edge of the pedal plate, so that a thin pedal plate can be installed, and the lateral size of the thin pedal plate after folding is small and does not interfere with the crank. And since an adjustment nut is provided on the vertical hinge connection shaft, the folding and unfolding states can be made relatively stable, and the limiting structure can be omitted, effectively solving the above problem.

[0006] The technical solution used in the present invention to solve the technical problem is as follows: Noa power-saving rod whose other end is hingedly connected to a pedal plate in a transverse direction and whose other end is hingedly connected to a base end of the pedal plate in a longitudinal direction, wherein the longitudinal hinge connection ends of the other end of the power-saving rod and the base end of the pedal plate are provided with corresponding load limiting structures, and the base end of the pedal plate is rotatable about an axial center of a longitudinal hinge connection shaft extending in the longitudinal direction relative to the other end of the power-saving rod, and the load limiting structures are provided on two rod sides that are circumferentially spaced apart from each other as viewed in the longitudinal direction and are provided on the other end of the power-saving rod. The pedal plate has a boss and two plate side bosses provided at the base end of the pedal plate and spaced circumferentially apart when viewed from the vertical direction, and when the pedal plate is deployed relative to the force-saving rod, one circumferential end side of one of the rod side bosses is in contact with the other circumferential end side of one of the plate side bosses, and one circumferential end side of the other rod side boss is in contact with the other circumferential end side of the other plate side boss, thereby restricting unidirectional rotation of the pedal plate around the axial center of the vertical hinge connection shaft.

[0007] Furthermore, the lateral hinge connection shaft connected via the lateral hinge is a screw, a hole is provided at one end of the labor-saving rod, a bearing is provided in the hole, and the exposed thread of the screw penetrating the inner ring of the bearing is used for fitting and connecting with the screw hole of the crank.

[0008] Furthermore, The center line that bisects the tread surface of the pedal plate in the front-rear direction is aligned with the axis center of the lateral hinge connection shaft that is hingedly connected to one end of the power-saving rod in the lateral direction. It is placed in the front.

[0009] Furthermore, the pedal plate is a frame-shaped pedal plate, and in the folded state, a part or the whole of the force-saving rod is disposed within the frame-shaped pedal plate.

[0010] Furthermore, Deployment Status So, The above The tread of the pedal plate slopes upward at an angle so that the inside is lower and the outside is higher.

[0011] Furthermore, The vertical An adjustment nut is provided on the shaft end of the directional hinge connection shaft.

[0013] Furthermore, The two rod side bosses and the two plate side bosses are It is a sector-shaped boss.

[0014] Furthermore, Deployment Status So, an angle of a contact surface between one circumferential end side of one rod-side boss and the other circumferential end side of one plate-side boss relative to the horizontal direction when viewed from the vertical direction; and The above The angle of the contact surface between the one circumferential end side of the other rod-side boss and the other circumferential end side of the other plate-side boss with respect to the horizontal direction when viewed from the vertical direction is The value is between minus 60° and plus 60°.

[0015] The transmission path of the pedal force in the above technical solution is the pedal plate, the power saving rod, the crank, the intermediate shift part, and the wheel.

[0016] One end of the labor-saving rod may be connected to a crank on another pedal driving device, such as a board used for pedal driving, and one end of the labor-saving rod is not limited to being connected to a crank, and is not limited to being used as a driving pedal, but may be connected to another device component and used as a support pedal. Effect of the Invention

[0017] Compared with the prior art, the labor-saving folding pedal of the present invention has at least the following beneficial effects: On the premise of labor-saving, a load-limiting structure is used, and the pedaling force load is not applied to the vertical hinge connection shaft, which avoids the load problem of the vertical hinge connection shaft, allows the use of a short load moment arm, and the outside of the vertical hinge connection end of the labor-saving rod and the pedal plate. The connection By making maximum use of it as a load moment arm, it is possible to install a thin energy-saving rod and pedal plate, resulting in an overall pedal width of less than 25mm after folding. [Brief description of the drawings]

[0018] [Figure 1] FIG. 2 is a schematic perspective view of the right pedal of the present invention in an unfolded state. [Diagram 2] FIG. 2 is a schematic perspective view of the right pedal of the present invention in a folded state. [Diagram 3] FIG. 2 is a schematic left side view of the left pedal of the present invention in a folded state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below in combination with drawings and embodiments or the description of the prior art, and it is obvious that the following description of the structures in the drawings is merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative efforts. It should be noted that the description of these embodiments is used to help understand the present invention, and does not limit the present invention.

[0020] Example 1: This embodiment provides a labor-saving folding pedal. As shown in FIG. 1, one end of the labor-saving rod 1 is Hole It is provided, Inside the hole Two bearings 31 are provided on the crank 7, and the screw 3 passes through the inner ring of the bearing 31 and is screwed into the screw hole of the crank 7. Washers 32 are provided between the two bearings 31 and between the bearing 31 and the crank 7. The other end of the labor-saving rod 1 is hinged vertically to the frame-shaped pedal plate 2 by the vertical hinge connection shaft 4. Two first sector-shaped bosses 5 are provided at the vertical hinge connection end on the labor-saving rod 1, although other numbers of first sector-shaped bosses 5 may of course be used. Two second sector-shaped bosses 6 are provided at the vertical hinge connection end on the frame-shaped pedal plate 2, and two second sector-shaped bosses 7 are provided at the vertical hinge connection end on the frame-shaped pedal plate 2. On the longitudinal hinge connection end The number of second sector bosses 6 is Labor-saving rod 1 The number of first sector-shaped bosses 5 on the vertical hinge connection end corresponds to that of the first sector-shaped bosses 5 on the vertical hinge connection end, and they correspond to each other; at this time, the frame-shaped pedal plate 2 is in an unfolded state, the first sector-shaped boss 5 contacts the second sector-shaped boss 6, the lateral angle of the contact surface is in a horizontal state, and the tread surface of the frame-shaped pedal plate 2 is inclined upward at a certain angle so that the inside is lower and the outside is higher.

[0021] As shown in Figure 2, one end of the labor-saving rod 1 is provided with a hole 8, and the other end is vertically hingedly connected to the frame-shaped pedal plate 2 by a vertical hinge connection shaft 4, and two first sector-shaped bosses 5 are provided at the vertical hinge connection end on the frame-shaped pedal plate 2, and two second sector-shaped bosses 6 are provided at the vertical hinge connection end on the frame-shaped pedal plate 2. At this time, the frame-shaped pedal plate 2 rotates counterclockwise from the unfolded state of Figure 1 to the folded state of Figure 2, and the two second sector-shaped bosses 6 rotate counterclockwise together with the frame-shaped pedal plate 2 from the position in Figure 1 to the position in Figure 2, and the labor-saving rod 1 is positioned within the frame of the frame-shaped pedal plate 2.

[0022] As shown in FIG. 3, the pedal surface of the frame-shaped pedal plate 2 is provided in front of the hole at one end of the power-saving rod 1, that is, the power-saving rod 1 is provided with a hole 8. , the center line L of pedal plate 2 is Center of hole 8 Located in front of The other end of the labor-saving rod 1 is hinged vertically to the frame-shaped pedal plate 2 by a vertical hinge connection shaft 4. Two first sector-shaped bosses 5 are provided on the outer sides of the two vertical hinge connection ends on the labor-saving rod 1, and two second sector-shaped bosses 6 are provided on the inner sides of the two vertical hinge connection ends on the frame-shaped pedal plate 2. An adjustment nut 41 is provided on the shaft end of the vertical hinge connection shaft 4. , tone By appropriately adjusting the node nut 41, the two vertical hinge connection ends on the frame-shaped pedal plate 2 can obtain an appropriate pushing and pulling force, which causes a slight change in the distance between both ends of the frame-shaped pedal plate 2. This slight change can generate an appropriate pushing and pulling force on the contact surface between the labor-saving rod 1 and the frame-shaped pedal plate 2, which forms a hinge connection damping force, and this damping force can make the unfolded and folded states of the frame-shaped pedal plate 2 relatively stable. At this time, the frame-shaped pedal plate 2 is in a folded state, and the labor-saving rod 1 is positioned within the frame of the frame-shaped pedal plate 2.

[0023] In the above embodiment, the labor-saving rod 1 and the frame-shaped pedal plate 2 are made of ADC12 aluminum alloy die-casting, and tests have shown that it can withstand a pedaling force of 145 kg at a position 70 mm away from the vertical hinge connection axis, and the size after folding is 23.5 mm.

[0024] Finally, the above contents are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention. [Explanation of symbols]

[0025] 1. Labor-saving rod 2. Frame-shaped pedal plate 3. Screws 31. Bearings 32. Washer 4. Vertical hinge connection axis 41, Adjustment nut 5. First sector boss 6. Second sector boss 7. Crank 8, hole

Claims

1. A labor-saving folding pedal including a pedal plate and a labor-saving rod, one end of which is hinged laterally to a crank of a bicycle and the other end of which is hinged vertically to a base end of the pedal plate, wherein the other end of the labor-saving rod and the base end of the pedal plate are provided with corresponding load limiting structures at their vertical hinged connection ends, The base end of the pedal plate is rotatable about an axis center of a vertical hinge connection shaft extending in the vertical direction relative to the other end of the power-saving rod, The load limiting structure includes: two rod side bosses provided at the other end of the labor-saving rod and spaced apart in the circumferential direction as viewed from the longitudinal direction; two plate-side bosses provided at a base end of the pedal plate and spaced apart in a circumferential direction when viewed from the longitudinal direction; A labor-saving folding pedal characterized in that, in an expanded state in which the pedal plate is expanded relative to the labor-saving rod, one circumferential end side of one of the rod side bosses is in contact with the other circumferential end side of one of the plate side bosses, and one circumferential end side of the other rod side boss is in contact with the other circumferential end side of the other plate side boss, thereby restricting unidirectional rotation of the pedal plate around the axial center of the vertical hinge connection shaft.

2. The labor-saving folding pedal according to claim 1, characterized in that the lateral hinge connection shaft connected laterally by a hinge is a screw, one end of the labor-saving rod is provided with a hole, a bearing is provided in the hole, and the thread of the screw exposed through the inner ring of the bearing is used to be fitted and connected to a screw hole of a crank.

3. The labor-saving folding pedal according to claim 1, characterized in that the center line that bisects the tread surface of the pedal plate in the front-to-rear direction is located forward of the axial center of the lateral hinge connection shaft that is hingedly connected in the lateral direction to one end of the labor-saving rod.

4. 2. The labor-saving folding pedal according to claim 1, wherein the pedal plate is a frame-shaped pedal plate, and the labor-saving rod is disposed within the frame-shaped pedal plate in the folded state.

5. 2. The labor-saving folding pedal according to claim 1, wherein in the unfolded state, the tread surface of the pedal plate is inclined upward at an angle such that the inner side is lower and the outer side is higher.

6. 2. The labor-saving folding pedal according to claim 1, wherein an adjustment nut is provided at the shaft end of the vertical hinge connection shaft.

7. 2. The labor-saving folding pedal according to claim 1, wherein the two rod-side bosses and the two plate-side bosses are sector-shaped bosses.

8. In the deployed state, an angle of a contact surface between one circumferential end side of the one rod-side boss and the other circumferential end side of the one plate-side boss with respect to a horizontal direction when viewed from the vertical direction; and The labor-saving folding pedal according to claim 1, characterized in that the angles of the contact surfaces where the circumferential end side of the other rod side boss and the circumferential other end side of the other plate side boss are in contact with each other relative to the horizontal direction when viewed from the vertical direction are between minus 60° and plus 60°.

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