JP3572237B2 - Folding pedal for bicycle - Google Patents

Description

[0001]
The present invention relates to a folding pedal for a bicycle which can be easily and compactly folded.
[0002]
[Prior art]
In recent years, folding bicycles have been widely used for the purpose of diversification of leisure and space saving. In addition, even if it is not a folding bicycle, the use of folding pedals has been increasing in order to make effective use of bicycle parking lots. As general ones, there are those disclosed in Japanese Utility Model Laid-Open No. 5-1689 and Japanese Utility Model Laid-Open No. 6-72796. The former slides the pedal treadle while pressing the button arranged on the pedal body by hand, then rotates and folds it.The latter has only one tread surface and rotates while pressing the opposite surface of the tread surface. It folds by things. Japanese Unexamined Patent Publication No. Hei 8-207866 has been proposed, which has not been put to practical use, but slides and accommodates a pedal stepping plate toward a crank arm.
[Problems to be solved by the invention]
However, in the configuration of Japanese Utility Model Laid-Open No. 5-1689, it is necessary to slide the pedal stepping plate with the other hand while pressing the button with one hand and then rotate it, which is very complicated. In the case of Japanese Utility Model Laid-Open No. 6-72796, only one side can be used, so that care must be taken when stepping on the pedal. If the operator steps on the opposite side of the tread by mistake, the pedal is folded, which is very dangerous. Further, in Japanese Patent Application Laid-Open No. Hei 8-207866, there is a problem that it is not so compact because only the slide is stored.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems all at once, and to provide a safe folding pedal for a bicycle while facilitating folding and assembling operations.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, in the present invention , a pedal stepping plate is provided on the pedal body so as to be movable in the axial direction of the pedal, and a spring acting in a direction to separate the pedal body and the pedal stepping plate in the direction of the pedal axis is provided. By moving the rotation center provided on the pedal stepping plate against the rotation center provided on the spring against the spring, the folding can be performed.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
When the pedal is folded by the above configuration, the pedal step plate is moved to the crank arm side against the spring, and the pedal step plate rotates when the rotation center provided on the side surface of the pedal body and the rotation center provided on the pedal step plate coincide with each other. It becomes possible, and the pedal pedal is rotated and folded.
[0006]
When assembling the pedal, when the pedal stepping plate is rotated around the center of rotation to the traveling position, the pedal stepping plate is automatically moved to the opposite side to the crank arm by the spring, and becomes ready for use.
[0007]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 are a plan view and a side view in a traveling position. FIG. 2 is a sectional view taken along the line ABCD of FIG. FIGS. 3 and 4 are plan views when the pedal stepping plate 2 is moved to the crank arm 7 side when folded, and the rotation center 1d of the bearing 1e of the pedal body 1 coincides with the center of the rotation shaft 2a of the pedal stepping plate 2. It is a side view. FIG. 5 shows a state of being folded, and FIG. 6 shows a state of being completely folded. FIG. 7 shows another embodiment of the present invention, and FIGS. 8 and 9 show operation by foot.
[0008]
The pedal stepping plate 2 has a substantially U-shape and is provided with a holding projection 2b and a rotating shaft 2a near the opening side, and is urged by a spring 6 toward the crank arm 7 and the pedal body 1 by a spring 6 on the opposite closed inner surface. Pressed cylinder 5 is provided. On both side surfaces of the pedal body 1 rotatably incorporated into the pedal shaft 4 screwed to the crank arm 7, the rotation shaft 2 a and the holding protrusion 2 b of the pedal stepping plate 2 are substantially provided so as to be movable in the pedal shaft 4 direction. A U-shaped holding rail 1c is provided. Since the rotating shaft 2a is composed of the flange 2c and the oval 2d, the flange 2c is held by the holding rail 1c, thereby preventing the substantially U-shaped pedal stepping plate 2 from spreading outward. The crank rail 7 side of the holding rail 1c is open, and the opposite side is closed by a wall 1a.
[0009]
In the above configuration, in the traveling position state, the distal end portion 5a of the pressing cylinder 5 urged toward the pedal body 1 by the spring 6 presses the open end portion 1b of the pedal body 1, so that the pedal stepping plate 2 is always The rotation shaft 2a is urged against the pedal body 1 in the direction of arrow E so as to contact the wall 1a. At this time, since the rotating shaft 2a and the holding projection 2b are held by the holding rail 1c of the pedal body 1, the pedal body 1 and the pedal stepping plate 2 are integrated, and can be used in the same manner as a normal pedal.
[0010]
When folded from the running position, the pedal step plate 2 is pushed in the direction of the arrow F, that is, in the direction of the arrow F, against the spring 6. When the pedal stepping plate 2 moves by a certain distance, the holding projection 2b is disengaged from the opening 1g of the holding rail 1c and the rotation center 1d of the bearing 1e of the pedal body 1 and the rotation axis of the pedal stepping plate 2 as shown in FIGS. The centers of 2a coincide with each other, and the pedal stepping plate 2 becomes rotatable about the rotation shaft 2a. In this embodiment, when the rotation center 1d of the bearing 1e of the pedal body 1 and the center of the rotation shaft 2a of the pedal stepping plate 2 coincide with each other, the rotation shaft 2a comes into contact with the stopper 3, so that the pedal stepping plate 2 Is prevented from moving to the crank arm 7 side.
[0011]
When the pedal step plate 2 is rotated in the direction of either the arrow P or the arrow Q in FIG. 4 from the above state, the pedal H is in a folded state as shown in FIG. Here, the open end portion 1b of the pedal body 1 and the distal end portion 5a of the pressing cylinder 5 are preferably tapered as shown in FIG. 1 so that the pedal stepping plate 2 is easily rotated. In this embodiment, since the rotating shaft 2a is formed by the flange 2c and the oval portion 2d, when the pedal tread plate 2 rotates, the oval portion 2d enters the bearing 1e of the pedal body 1 as shown in FIG. The movement in the direction of the pedal shaft 4 is prevented.
[0012]
When the pedal stepping plate 2 is further rotated, the pedal H is completely folded as shown in FIG. In this state, since the distal end portion 5a of the pressing cylinder 5 urged by the spring 6 presses the flat portion 1f of the pedal body 1, resistance is generated, and rotation of the pedal stepping plate 2 is prevented. Because it is, it can hold the folded state.
[0013]
Next, when the pedal H is returned from the folded state to the running position, the pedal step plate 2 may be rotated in the direction of arrow P in FIG. When the pedal shaft 4 is rotated to the position where the axis of the pressing cylinder 5 coincides, the oval portion 2d of the rotating shaft 2a is disengaged from the bearing portion 1e of the pedal body 1, and the pedal stepping plate 2 becomes movable in the direction of the pedal shaft 4. . At this time, the distal end portion 5a of the pressing cylinder 5 urged by the spring 6 presses the open end portion 1b of the pedal body 1, so that the pedal stepping plate 2 is moved in the direction opposite to the crank arm 7, that is, in the direction of arrow E. The holding projection 2b of the stepping plate 2 enters the opening 1g of the pedal body 1, and the pedal stepping plate 2 moves until the rotary shaft 2a comes into contact with the wall 1a to be in the running position.
[0014]
The present invention is not limited to the above embodiment. For example, in the present embodiment, the rotating shaft 2a and the holding projection 2b are formed integrally with the pedal tread plate 2. However, the rotating shaft 2a and the holding protrusion 2b may be attached as separate pieces. A projection may be provided and a holding rail may be provided on the pedal stepping plate. Alternatively, as shown in FIG. 7, a control piece 10 for controlling the position of the holding projection 9 without providing an oval portion on the rotating shaft 8 is provided on the pedal body 11. Is also good. In short, the pedal stepping plate is movable in the pedal axis direction, and a spring is provided that acts in a direction to separate the pedal body and the pedal stepping plate in the pedal axis direction, and is provided on the pedal stepping plate at the rotation center provided on the side surface of the pedal body. What is necessary is just to be able to be folded by moving the center of rotation and matching the center of rotation.
[0015]
【The invention's effect】
No conventional product has all three requirements of being simple, safe and inexpensive, and being compact. As described above, in Japanese Utility Model Laid-Open No. 5-1689, folding is required unless a button is pressed. In Japanese Utility Model Laid-Open No. 6-72796, only one side can be used, which poses a problem in safety. It is not so compact. However, according to the present invention, these problems can be solved at once, and a folding pedal that satisfies all the above three requirements can be provided.
[0016]
That is, without pressing or pulling the button, the pedal can be folded simply by pushing the pedal stepping plate toward the crank arm and rotating the pedal stepping plate when the center of rotation coincides. In practice, this rotation operation almost automatically rotates with almost no awareness, so that it can be folded very easily and quickly. After being folded, the folded position can be held by resistance between the pressing cylinder urged by the spring and the flat portion of the pedal body. Also, when returning to the running position, simply turning the pedal stepping plate automatically returns.
[0017]
In addition, since it can be folded and returned very easily as described above, it can be operated by foot. When folded as shown in FIGS. 8 and 9, the pedal step plate is pressed against the crank arm side with the sole of the shoe, and when returning to the running position, the pedal step plate only needs to be depressed toward the pedal body side. This can be a great advantage, as you can avoid having to shake your hands on dirty pedals. In other words, not only folding bicycles, but also general vehicles, when bicycles are parked or stored, despite the fact that it is desirable to use folding pedals because the pedals are in the way, it is troublesome, the hands are dirty, etc. However, if the pedal of the present invention is adopted in a general vehicle, it can be accepted without any resistance, and can contribute to space saving.
[Brief description of the drawings]
FIG. 1 is a plan view showing a cross section of a half at a travel position of a pedal.
FIG. 2 is a side view showing a cross section of a part of the pedal at a traveling position.
FIG. 3 is a plan view showing a half of a section when the pedal stepping plate is moved to the crank arm side and the rotation centers coincide with each other in cross section.
FIG. 4 is a side view showing a part when the pedal stepping plate is moved to the crank arm side and the rotation centers coincide with each other in cross section.
FIG. 5 is a side view showing a partial cross section of the middle of the folding of the pedal.
FIG. 6 is a side view showing a state where the pedal is folded in a partial cross section.
FIG. 7 is a side view showing a partial cross section showing another embodiment.
FIG. 8 is a side view showing a partial cross section when the product of the present invention is folded by a foot.
FIG. 9 is a side view, partially in section, of returning the product of the present invention to a running position with a foot.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pedal main body 1a Wall 1b Open end 1c Holding rail 1d Rotation center 1e Bearing 1f Flat part 1g Opening 2 Pedal stepping plate 2a Rotating shaft 2b Holding protrusion 2c Collar 2d Oval 3 Stopper 4 Pedal shaft 5 Pressing cylinder 5a Tip 6 Spring 7 Crank arm

Claims (3)

The pedal footplate to the pedal body with the pedal axis movably provided, the spring acting in the direction in which the pedal body and the pedal footplate Te pedal axis odor away Hansa provided, which is formed in the holding rail provided on a side surface of the pedal body A folding pedal for a bicycle that can be folded by moving the rotation center of a rotation shaft provided on a pedal step plate at the rotation center of a bearing portion against a spring. The crank arm side is opened on the side surface of the pedal body, and the opposite side is provided with a closed holding rail provided in the pedal axis direction, a rotating shaft capable of moving the holding rail and a holding projection are provided on the pedal step board, and the pedal arm has a crank arm. 2. The folding pedal for a bicycle according to claim 1, further comprising a spring provided on an inner side of the opposite end portion, the spring acting in a direction for separating the pedal body and the pedal stepping plate. The folding pedal for a bicycle according to claim 1, wherein when the pedal is folded, the spring provided on the pedal stepping plate urges the pedal body flat portion to maintain the folded state.

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