JPH092366A - Assembling structure of bicycle pedal - Google Patents

Abstract

PURPOSE: To provide a pedal assembling structure without generating an assembling miss in right and left by interposing an assembling tool for fixing a pedal and a pedal rod between the both so that the pedal rod can be screwed to a pedal arm. CONSTITUTION: In the condition that an assembling tool 3 is interposed between a pedal 1 and a pedal rod 2 for supporting the pedal freely to be turned, the pedal 1 is assembled to a pedal arm 1. The assembling tool 3 is provided with a yoked type locking claw 3a, which can be inserted into insertion holes 1b of the pedal 1, and a groove part 3b at a width, in which a width across flat part 2a of the pedal rod 2 can be fitted without generating a clearance. The pedal 1 is enclosed in the condition that the assembling tool 3 is previously installed in the pedal 1. Namely, the pedal 1 is enclosed in the condition that the width across flat part 2a of the pedal rod 2 is inserted into the groove part 3b and that both the locking claws 3a are inserted into the insertion holes 1b so as to fix the pedal 1 and the pedal rod 2. At this stage, for example, a display 'R' for right pedal is attached on the top surface of the assembling tool 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bicycle pedal assembly structure.

[0002]

2. Description of the Related Art Generally, a pedal of a bicycle is rotatably attached to the tip ends of a pair of left and right pedal arms via pedal rods, and is attached so as to protrude laterally from the tip ends of the pedal arms. Here, the bicycle is generally packaged in a state before the parts such as the above-mentioned pedals that protrude laterally are assembled at the shipping stage of the manufacturer, which makes the packaging box as narrow as possible. This improves the handling during transportation and saves the transportation space.

[0003]

Background of the Bicycle Industry That Invented the Invention As described above, since the bicycle manufacturer ships without assembling the pedals, one pair of left and right pedals is used for each pedal arm when used by general users. It is necessary to attach it to. Conventionally, this assembling work has been performed at a stage before being sold to general users, that is, at a bicycle shop. Usually, at a store, a pedal is assembled by using a tool such as a wrench to screw a threaded portion formed at the tip of the pedal rod into a screw hole formed at the tip of the pedal arm.

Here, a pair of left and right pedals are mounted on the left and right opposite sides of the bicycle frame, and a rightward rotational force is applied to the right pedal rod when the bicycle is moving forward, so that the left pedal rod is attached. In general, the threaded portion of the pedal rod on the right side is a right-handed thread, and the threaded portion of the pedal rod on the left-hand side is a left-handed thread because a rotational force in the left direction is applied. In this way, since the left and right threaded parts of the pedal rod are reverse threads, it is necessary to screw the pedal part in the correct direction when assembling the pedal. For example, a display for distinguishing left and right is provided on the end face.

[0005]

However, in recent years, with the diversification of bicycle sales forms, the sales form in which the bicycle is directly sold to general users in an unassembled state without undergoing assembly work at a store ( Sales of kits are showing signs of expansion in some cases, and in the case of sales of such kits, the pedal assembly work will be done by general users who are the final consumers. There is no particular problem if you are familiar with bicycle assembly work, such as at a retailer, but if you are a female user who is not familiar with such work, you may try to install the left and right by mistake. Therefore, in this case, not only can the assembly not be carried out after all, but if the screw is forcibly screwed, the screw thread of the pedal rod or the pedal arm may be crushed. Further, it is not preferable to force a person who is unfamiliar with the assembling work to use a tool such as a spanner in order to sell the kit.

The present invention has been made under such a background, and even in the case of kit sales, even a user who is unfamiliar with the assembly work can make a right or left mistake without making a mistake.
Another object of the present invention is to provide a pedal mounting structure that can be mounted without using a tool such as a spanner.

[0007]

Therefore, the invention according to claim 1 is a bicycle pedal assembly structure in which a pedal rod for rotatably supporting a pedal is screwed and fixed to the tip of a pedal arm. , A structure in which an assembling tool for fixing both of them against rotation is interposed between the pedal and the pedal rod, and the pedal rod can be screwed into the pedal arm through rotation of the pedal. And

The invention according to claim 2 is the assembly structure according to claim 1, wherein the assembly tool is a bifurcated locking claw capable of being inserted into and removed from an insertion hole formed in the pedal, and the pedal rod. Has a locking groove capable of engaging and disengaging the two-face width portion formed in, the locking claw is inserted into the insertion hole of the pedal across the pedal rod, and the locking groove has two surfaces of the pedal rod. The width portion is engaged to fix the pedal and the pedal rod in rotation.

The invention described in claim 3 is the first or second invention.
The assembling structure described above is characterized in that a symbol for distinguishing left and right is displayed on the assembling tool.

[0010]

According to the structure of the first aspect, when the pedal is assembled to the tip of the pedal arm, if the assembling tool is interposed between the pedal and the pedal rod, both of them are fixed in rotation. The pedal rod can be screwed into the pedal arm by rotating. From this,
It is possible to assemble the pedal without using a tool such as a spanner as in the conventional case, which allows a person such as a female user who is not accustomed to this kind of work to easily assemble the pedal. This has an advantage in taking the form of kit sales.

According to the second aspect of the present invention, the locking claw is inserted into the insertion hole of the pedal while straddling the pedal rod in a state in which the pedal and the pedal rod are rotationally fixed by mounting the assembling tool. Therefore, by setting the spacing of the locking claws large and the spacing of the insertion holes accordingly, a larger torque can be transmitted between the pedal and the pedal rod, so that the pedal is more firmly assembled. be able to.

Further, since the pedal side has a structure in which the locking claw is inserted into the insertion hole and the flat width portion is inserted into the groove portion on the pedal rod side, the assembling tool can be easily removed even after the pedal is assembled. You can Therefore, after the pedal is assembled, the unnecessary assembling tool can be removed from the bicycle.

According to the third aspect of the present invention, whether the pedal is for the right side or the left side is determined by mounting the assembling tool between the pedal and the pedal rod in advance at the shipping stage of the manufacturer. Can be distinguished at a glance, and even a general user who is unfamiliar with this type of assembly work does not have the risk of mistakenly assembling right and left, and therefore does not crush the screw thread, The pedal can be reliably assembled, and this also has an advantageous effect in taking the form of selling the kit, and the expansion thereof can be achieved.

[0014]

According to the first aspect of the present invention, even a general user can easily and quickly assemble the pedal without using a tool such as a spanner. New sales forms can be expanded.

According to the second aspect of the invention, the pedal can be attached more firmly without using a tool such as a spanner, and the assembling tool can be removed after the pedal is assembled.

According to the third aspect of the invention, the pedal can be attached without making a mistake in the left and right sides.

[0017]

Next, an embodiment of the present invention will be described with reference to FIGS. The pedal assembly structure in this example is a structure in which the pedal 1 is assembled to the pedal arm 4 with the assembly tool 3 interposed between the pedal 1 and the pedal rod 2 that rotatably supports the pedal 1. Has become.

The pedal 1 has a substantially flat plate shape having a sufficient size and strength for placing a foot on it, as in the prior art, and a cylindrical portion 1a for accommodating the pedal rod 2 is formed in the center thereof. The pedal rod 2 is inserted into the cylindrical body portion 1a via a bearing (not shown), so that the pedal 1 is rotatably supported by the pedal rod 2. The pedal rod 2 is protruded to the left side in the drawing, and a double width portion 2a and a right screw 2b are formed on the protruding portion.

On the other hand, at the end of the pedal 1 on the protruding side of the pedal rod 2, insertion holes 1b to 1b for inserting the locking claws 3a of the assembling tool 3 are formed. The insertion hole 1b is formed on the upper surface of the pedal 1 in the drawing by the pedal rod 2
It is formed in two places that are symmetrical with respect to the front and rear. Also,
Similarly, two insertion holes 1b, 1b are also formed on the lower surface side at a predetermined interval.

Next, the assembling tool 3 has a bifurcated locking claw 3a, which can be inserted into the insertion holes 1b, 1b of the pedal 1.
3a and a groove portion 3b having a width that allows the two-face width portion 2a of the pedal rod 2 to be fitted into the pedal rod 2 with almost no gap. That is, as shown in FIG. 3, the assembling tool 3 of this example has the locking claws 3 at both ends at one edge of the U-shaped bent strip steel plate.
a and 3a and the contact edge 3c at the center are cut and raised to form a knob edge 3d, and a groove portion 3b is formed by cutting from the lower end to the other edge. Both locking claws 3a, 3a
Are formed at intervals corresponding to the insertion holes 1b, 1b of the pedal 1 and have a width and a plate thickness that can be inserted into the insertion holes 1b, respectively.

As shown in FIG. 1 and FIG.
On the top surface of the symbol for indicating the left and right (below,
"Left and right display symbol 3e") is attached. The mounting tool 3 shown is for the right pedal 1 and is labeled "R". Therefore, an assembling tool (not shown) for the left pedal 1 that is paired with the assembling tool 3 for the right is marked with a left and right display symbol "L".

According to the assembling structure of this embodiment constructed as described above, the pedal 1 has the pedal arm 4 in the following manner.
Assembled to. At the time of shipment of the bicycle manufacturer, so that it can be packed in a compact box with a minimum width,
It is shipped in a state in which the handle is oriented so that it does not stick out to the left and right, a basket with a large width in the left and right is not attached, and the pair of left and right pedals 1, 1 protruding laterally is not attached.

The pedals 1 and 1 are packed in a state in which the assembling tool 3 is mounted in advance. That is, the groove 3b
The two width portions 2a of the pedal rod 2 are inserted therein, and the locking claws 3a, 3a are respectively inserted in the insertion holes 1b, 1b, and the pedal 1 and the pedal rod 2 are packaged in a rotationally fixed state. It The contact edge 3c is the pedal 1
Abuts on the upper surface.

The assembling tool 3 has a left and right display symbol 3e.
Is attached to the pedal 1 for the right or the pedal 1 for the left, so that the user can easily distinguish whether the pedal 1 is for the left or the right by seeing the left and right display symbols 3e of the assembling tool 3. It will be shipped in a ready state.

When the bicycle shipped from the manufacturer in the unassembled state as described above is directly sold to a general user in the form of the kit sale described above, the general user himself assembles the pedals 1 and 1. It will be.
At this stage, since the assembling tool 3 is attached to the pedal 1, the left and right display symbols 3e can be used to easily distinguish the pedal 1 for left or right.

Moreover, since the pedal 1 is fixed to the pedal rod 2 so as not to be rotatable by mounting the assembling tool 3, a general user can, for example, use the right pedal 1 shown in the drawing. When assembling, the screw portion 2b of the pedal rod 2 is screwed into the screw hole 4a of the right pedal arm 4.
Then, when the pedal 1 is rotated clockwise, the screw portion 2b of the pedal rod 2 is screwed into the screw hole 4a.

Here, the rotation of the pedal 1 and the pedal rod 2 is fixed by, for example, inserting a withdrawal pin between the pedal 1 and the pedal rod 2 instead of the assembling tool 3 having the exemplified configuration. It is possible to
In such a structure, when the pedal 1 is rotated with a large force to be screwed and fixed to the pedal arm 4, the torque is concentrated and added to the above-mentioned insertion / removal pin. May cause damage. However, according to the assembling tool 3 of this example, both locking claws 3a, 3a formed at appropriate intervals are provided.
Since the rotation between the pedal 1 and the pedal rod 2 is fixed by engaging the groove portion 3b with the width across flat portion 2b, even if the pedal 1 is rotated with a large force, the assembly tool 3 or the pedal 3 The stress applied to 1 and the like is dispersed, and therefore, the screw portion 2a can be screwed with a sufficient tightening torque without causing damage to each part.

When the screw portions 2a of the left and right pedals 1, 1 are completely screwed in, the respective assembling tools 3 may be removed. The assembling tool 3 picks up the knob edge 3d, and radiates the pedal rod 2 in the radial direction (upward in the drawing).
It can be easily removed by pulling it out. The removed assembling tools 3 and 3 become unnecessary when the bicycle is used, but since they can be used at a later time, for example, when the pedal 1 is replaced, it is preferable to store them in a predetermined place.

When the assembling tool 3 is removed, the pedal 1 becomes rotatable with respect to the pedal rod 2, and the assembling of the pedal 1 is completed.

As described above, according to the pedal assembly structure of this embodiment, even a general user, especially a female user who is unfamiliar with this type of assembly work, can use the pedal left and right without using a tool such as a spanner. Since the pedals 1 and 1 can be easily assembled in a predetermined state without making a mistake, it is possible to expand the kit sales accompanying the diversification of bicycle sales modes.

Note that various modifications can be made to the illustrated configuration, and for example, although not shown, the left and right display symbols 3e of the assembling tool 3 may be displayed on the knob edge 3d. . Further, the insertion holes 1b, 1b are provided at the left and right pedals 1, 1 at different intervals, and correspondingly, the intervals of the locking claws 3a, 3a are changed by the left and right assembling tools 3, 3 to thereby assemble The tool 3 can be dedicated to the left or right pedal 1, and according to this configuration, even a general user does not mistakenly mount the mounting tool 3 on the opposite side, so that the manufacturer ships it. It is not necessary to previously mount the assembling tool 3 at the stage.

[Brief description of drawings]

FIG. 1 is a perspective view of a pedal with an assembling tool removed according to an embodiment of the present invention.

FIG. 2 is a perspective view of a pedal to which an attachment tool is attached.

FIG. 3 is a perspective view of a single assembly tool.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pedal 1a ... Cylindrical part, 1b ... Insertion hole 2 ... Pedal rod 2a ... Flat width part 2b ... Screw part 3 ... Assembly tool 3a ... Locking claw 3b ... Groove part 3d ... Knife edge 3e ... Left and right display symbols 4 ... Pedal arm, 4a ... Screw hole

Claims (3)

[Claims] 1. A bicycle pedal assembly structure in which a pedal rod for rotatably supporting a pedal is screwed and fixed to a tip end of a pedal arm, and both are rotated between the pedal and the pedal rod. A structure for assembling a bicycle pedal, characterized in that the pedal rod can be screwed into the pedal arm through rotation of the pedal with an assembling tool for fixing. 2. The assembly structure according to claim 1, wherein the assembly tool is a bifurcated locking claw that can be inserted into and removed from an insertion hole formed in the pedal, and a width across flats formed in the pedal rod. Has a locking groove capable of engaging and disengaging a portion, the locking claw is straddled over the pedal rod and inserted into the insertion hole of the pedal, and the two-width portion of the pedal rod is engaged with the locking groove. The bicycle pedal assembly structure is characterized in that the pedal and the pedal rod are fixed in rotation. 3. The mounting structure according to claim 1 or 2, wherein a symbol for distinguishing between left and right is displayed on the mounting tool.