JPS63993U

JPS63993U -

Info

Publication number: JPS63993U
Application number: JP9504886U
Authority: JP
Priority date: 1986-06-20
Filing date: 1986-06-20
Publication date: 1988-01-06

Description

[Brief explanation of drawings]

図面は本考案ペダル装置の一実施例を示すもの
で、第１図は横断面図、第２図は一部破断して示
した右側面図、第３図は主要部品を組立て順に示
した分解斜視図である。１はクランク軸、２はクランク案内用ガイド板
、２ｂは円形凹陥部、３は大ギヤ、４は右側クラ
ンク、４ａはクランク主体、４ｂはクランク分体
、５は左側クランク、６はベアリング、７はロー
ラ。 The drawings show an embodiment of the pedal device of the present invention, in which Fig. 1 is a cross-sectional view, Fig. 2 is a partially cutaway right side view, and Fig. 3 is an exploded view showing the main parts in the order of assembly. FIG. 1 is a crankshaft, 2 is a guide plate for guiding the crank, 2b is a circular recess, 3 is a large gear, 4 is a right crank, 4a is a crank main body, 4b is a crank part, 5 is a left crank, 6 is a bearing, 7 is Laura.

Claims

[Scope of utility model registration request]

A disk body with a diameter smaller than that of the large gear is formed at both ends of the hanger hook part of the bicycle frame, and a hole provided in the center is provided with a bearing for supporting the shaft, and a cylindrical boss part for fitting is provided on one side of the disk body. A crank guiding guide plate that also serves as a pair of left and right bearings has a circular concave portion on the other side surface that engages and guides the crank and is recessed with a predetermined eccentricity in the bicycle traveling direction with respect to the axis of the disc body. The crankshaft, which is fitted and fixed by the above-mentioned cylindrical boss portions and rotatably supported by both guide plates, has square shaft portions formed at both ends of the crankshaft, and the large gear and crank that are engaged with these two square shaft portions are The large gear is provided with a fitting square hole and a pair of parallel elongated holes on both sides thereof to allow movement of the crank so that the large gear can rotate together. When the lever rotates, it always moves toward the stepping side to increase its protrusion length, and when it is pulled up, it becomes smaller.A long hole is provided so that the lever can be moved, and the front and rear ends of the portion located in the circular concave portion are fixed. A bicycle pedal device comprising a guide roller built into each part.