JPH0245120Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The invention enables the pedals to be set in a working position in which they protrude outward from the crank and a storage position in which they protrude in a vertical plane parallel to the body of the bicycle. This invention relates to a bicycle pedal device.

(Prior art) In order to reduce the overall lateral width of a bicycle in use so that it can be stored in a narrow space, the saddle and pedals are configured to be rotatable so as to reduce the lateral width. There is one that has a pair of left and right handles that can be folded into two.

In this type of conventional bicycle pedal device, the third
As shown in FIGS. 1 and 32, a mounting portion 4 protruding from the pedal shaft of a pedal 3 is rotatably attached to the pivot shaft 2 at the tip of the crank 1. By engaging and disengaging the hook 5 provided in the mounting part 4 into the engagement recess 6 of the mounting part 4, the pedal 3 can be moved to the use position (Fig. 31) where the pedal shaft protrudes outward from the crank 1, and the bicycle body. There is a storage position (Fig. 32) that protrudes in a vertical plane parallel to the
issue).

(Problem to be solved by the invention) However, in the conventional case, the engagement of the pedal 3 with the crank 1 by the latch claw 5 is loose, and especially when the pedal 3 is set in the use position as shown in FIG. When stepping on the pedal, there is a risk that the latch 5 may come off from the engagement recess 6 and the pedal 3 may unexpectedly rotate to the stored position or rattle, causing problems such as hindrance to bicycle riding.

In view of the above-mentioned problems, the present invention allows the pedal to be easily and reliably locked in the operating position where the pedal shaft protrudes outward from the crank and the storage position where the pedal shaft protrudes into a vertical plane parallel to the bicycle body. It is something.

(Means for solving the problem) The technical means of the present invention for solving this technical problem is that the mounting part 3 is attached to the pedal shaft 16 of the pedal 11.
1 is provided protrudingly, and a pivot shaft 2 is provided at the tip of the crank 13.
4 is provided so that the pedal shaft 16 of the pedal 11 can be rotated between a use position in which it protrudes outward from the crank 13 and a storage position in which it protrudes from the crank 13 into a vertical plane parallel to the body of the bicycle. Mounting part 3
1 connects to the pivot shaft 2 through the mounting hole 32 of the mounting portion 31.
4, and the fitting hole 33, which fits into the pivot shaft 24 so that the fitting part 31 cannot rotate in the use position, is continuous with the fitting hole 32.
A locking mechanism 35 is provided for immovably locking the mounting portion 31 relative to the crank 13 in a used state in which the fitting hole 33 is fitted to the pivot shaft 24, and the mounting portion 31 is rotated to the storage position. An engagement mechanism 41 is provided which detachably engages the mounting portion 31 so as to stop the rotation thereof in a moved state.

(Function) When setting the pedal 11 from the use position shown in FIG. 3 to the storage position shown in FIGS. 1 and 2, the fitting hole 33 is fitted into the pivot shaft 24 as shown in FIG. From this state, pull the engagement member 36 in the direction of arrow a as shown in FIG.
is moved in the direction of arrow B relative to the crank 13 to remove the fitting hole 33 from the pivot shaft 24, and then, as shown in FIG. 29, rotate the mounting portion 31 around the pivot shaft 24 in the direction of arrow C. Then, the tension on the engagement member 36 may be released. At this time, as shown in FIG. 29, the distal end of the engagement member 36 comes into contact with the flat surface 42, so that the engagement mechanism 41 detachably engages the mounting portion 31 to stop its rotation. , to hold the pedal 11 in the stowed position.

Furthermore, when setting the pedal 11 from the storage position shown in FIGS. 1 and 2 to the use position shown in FIG. 3, from the state shown in FIG. After pulling in the direction a to disengage the engagement mechanism 41, the attachment part 31 is rotated in the direction of the arrow d relative to the crank 13, and then the second
As shown in FIG. 8, the attachment portion 31 may be moved in the direction of the arrow e to release the tension on the engagement member 36. At this time, as shown in FIG. 28, the distal end of the engagement member 36 engages with the engagement recess 37, so that the locking mechanism 35 locks the mounting portion 31 against the crank 13 so that it cannot move.

(Example) Hereinafter, the present invention will be explained according to the illustrated embodiment. In Figs. 1 to 3, 7 is a bicycle;
It includes a front wheel 8, a rear wheel 9, a saddle 10, a pair of left and right pedals 11, a pair of left and right handles 12, and the like. The saddle 10 is configured so that it can be set in a horizontal position as shown in FIG. 3 and in a vertical position substantially parallel to the body of the bicycle 7 as shown in FIGS. 1 and 2. The pedals 11 are configured to be settable between a use position in which they protrude outward from the crank 13 and a storage position in which they protrude from the crank 13 into a vertical plane parallel to the body of the bicycle 7. The handle 12 is configured to be settable between an extended state in which it protrudes outward in the left-right direction and a bent state in which it is folded rearward into this bifold shape.

4 to 11 show the configuration of the pedal and crank portion, and in the same figure, the pedal 11
includes a pedal shaft 16 and a bearing 1 on the pedal shaft 16.
Pedal body 18 rotatably held via 7
Equipped with. The tip of the crank 13 has a first
As shown in Figs. 2 to 14, the U-shaped support portion 1
9 is provided, and a support hole 20 and a holding hole 21 are formed through the support portion 19 .

Reference numeral 24 denotes a pivot shaft provided at the tip of the crank 13, which has a circular head 25, a flat shaft portion 26, and a threaded portion 27, as shown in FIGS. 15 to 19.
The crank 13 is inserted into the support portion 19 through a support hole 20 in the direction in which the crank 13 projects, and is fastened and fixed to the support portion 19 by a nut 28 that is threaded into a threaded portion 27 .

Reference numeral 31 designates a mounting portion for the pedal 11, which is provided to protrude inward in the axial direction from the pedal shaft 16. The mounting portion 31 has a circular mounting hole 3 as shown in FIGS. 20 to 23.
2 and a fitting hole 33 that is continuous with the mounting hole 32 is formed through the fitting hole 32 . As shown in FIGS. 28 to 30, this mounting portion 31 has two positions: a use position where the pedal shaft 16 of the pedal 11 projects outward from the crank 13, and a storage position where the pedal shaft 16 of the pedal 11 projects into a vertical plane parallel to the body of the bicycle 7. The shaft portion 26 of the pivot shaft 24 is inserted and held through the mounting hole 32 so as to be rotatable to the desired position, and the fitting hole 33 is removably fitted to the pivot shaft 24. The portion 31 is configured to be fixed unrotatably to the crank 13.
In addition, in the operating state in which the fitting hole 33 is fitted to the pivot shaft 24 as shown in FIG. Also, rotation of the mounting portion 31 can be restricted.

Reference numeral 35 denotes a locking mechanism for immovably locking the mounting portion 31 with respect to the crank 13, and as shown in FIGS. 28 to 30, an engaging member 36 is slidably inserted into the holding hole 21 of the support portion 19. and the mounting part 31
The engaging member 36 is biased by a pressing coil spring 39 so as to protrude toward the mounting portion 31, and as shown in FIG. When the pedal 11 is put into use by being fitted onto the support shaft 24 , the tip of the engagement member 36 removably engages with the engagement recess 37 to move the mounting portion 31 relative to the crank 13 . By pulling the engagement member 36 against the spring 39 while the engagement member 36 is locked, it is disengaged from the engagement recess 37 and the attachment portion 31 is unlocked.

41 is an engagement mechanism that stops the rotation of the mounting part 31;
As shown in FIGS. 28 to 30, it comprises the engaging member 36 and a flat surface 42 formed with a notch in the mounting portion 31, and when the mounting portion 31 is rotated to the storage position as shown in FIG. The distal end of the engagement member 36 comes into contact with the flat surface 42 of the mounting portion 31 under the bias of the spring 39, thereby stopping the rotation of the mounting portion 31 at the storage position and causing the engagement member 36 to engage with the spring 39. By pulling the engagement member 36 against the flat surface 4
The mounting portions 31 are spaced apart by 2 to allow rotation of the mounting portion 31.

In the above embodiment, the engaging member 36 is used both as the locking mechanism 35 and the engaging mechanism 41, but instead of this, the locking mechanism 35 and the engaging mechanism 41 may be constructed completely separately. good.

(Effect of the invention) According to the invention, by fitting the fitting hole 33 to the pivot shaft 24, not only can the mounting portion 31 be made unrotatable in the use position, but also the locking mechanism 35 can lock the fitting hole 33 into the pivot shaft 24. Since the mounting portion 31 can be locked in the use position where the crank 13 is fitted to the pivot shaft 24, it is possible to prevent the pedal 11 from rotating twice, and the crank 13 can be locked.
The pedals 11 can be securely held in the use position, and there is no risk that the pedals 11 will unexpectedly rotate to the storage position or rattle when the pedals 11 are depressed, allowing safe and smooth bicycle riding. obtain.
In addition, with the pedal 11 rotated to the storage position,
Since the engagement mechanism 41 can freely engage and disengage the rotation of the mounting portion 31, the pedal 11 can be more securely held in the stored position, and the fitting hole 33 is provided so as to be continuous with the mounting hole 32. Therefore, the mounting portion 31 can be set with a simple operation from the use position to the storage position, or vice versa, and the practical effect is great.

[Brief explanation of the drawing]

Figures 1 to 30 show an embodiment of the present invention, with Figure 1 being an overall perspective view of the bicycle, Figures 2 and 3 being a front view of the same, and Figure 4 showing the bicycle with the pedals set in the use position. FIG. 5 is a rear view of the pedal and the crank part, FIG. 6 is a cross-sectional view of the same, FIG. 7 is a side view of the same, and FIG. A perspective view of the crank part, FIG. 9 is a rear view, FIG. 10 is a side view, FIG. 11 is a plan sectional view, FIG. 12 is a rear view of the crank, FIG. 13 is a side view, and FIG. 15 is a perspective view of the pivot shaft, FIG. 16 is a side view, FIG. 17 is a plan view, FIG. 18 is a front view, and FIG. 19 is a bottom view. Fig. 20 is a perspective view of the mounting part, Fig. 21 is a plan view thereof, Fig. 22 is a side view thereof, Fig. 23 is a front view thereof, Fig. 24 is a perspective view of the engaging member, and Fig. 25 is a perspective view of the same. 26 is a side view of the same, FIG. 27 is a bottom view of the same, and FIG. 28 is A of FIG. 5.
29 is a sectional view taken along the line B-B in FIG. 9, and FIG. 30 is a plan sectional view of the mounting portion and crank portion for explaining the operation. FIGS. 31 and 32 are plan sectional views showing conventional examples, respectively. 7... Bicycle, 11... Pedal, 13... Crank, 16... Pedal shaft, 24... Pivot shaft, 31
...Mounting portion, 32...Mounting hole, 33...Fitting hole.

Claims (1)

[Scope of utility model registration request] A mounting portion 31 is provided protrudingly on the pedal shaft 16 of the pedal 11, a pivot shaft 24 is provided on the tip of the crank 13, and the pedal shaft 16 of the pedal 11 is attached to the crank 13.
The mounting portion 31 is inserted through the mounting hole 32 of the mounting portion 31 so that the mounting portion 31 can be rotated between a use position in which the crank 13 projects outward and a storage position in which the crank 13 projects in a vertical plane parallel to the body of the bicycle. The mounting hole 33 is inserted into the pivot shaft 24 and held so that the fitting hole 33 that fits into the pivot shaft 24 is continuous with the mounting hole 32 so that the mounting portion 31 cannot rotate in the use position. A locking mechanism 35 is provided, which locks the mounting portion 31 immovably relative to the crank 13 in a used state in which the fitting hole 33 is fitted to the pivot shaft 24, and the mounting portion 31 is rotated to the storage position. When the mounting part 31 is
A bicycle pedal device characterized in that an engagement mechanism 41 is provided which engages in a detachable manner so as to stop rotation of the pedal.