JPH0467198U

JPH0467198U -

Info

Publication number: JPH0467198U
Application number: JP10839990U
Authority: JP
Priority date: 1990-10-15
Filing date: 1990-10-15
Publication date: 1992-06-15

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示すものであつて、
第１図は自転車の側面図、第２図は第１図の−
線拡大断面図、第３図は摺動ペダルとチエーン
並びに駆動係止歯及び駆動伝達はとの関係を示す
拡大側面模式図、第４図は摺動ペダルの拡大正面
図、第５図は摺動ペダルの拡大側面図、第６図は
摺動ペダルの作動状態を示す拡大正面図である。１……フレーム、１ａ……前パイプ、１ｂ……
後パイプ、１ｃ……水平パイプ、２……サドル、
３……回転軸、４……大スプロケツト、５……下
スプロケツト、６……後輪、７……小スプロケツ
ト、８……伝達チエーン、９……上軸、１０……
軸受け、１１……上スプロケツト、１２……チエ
ーン、１２ａ……裏面側、１３……カバー体、１
３ａ……彎曲部、１４……ガイド穴、１５……摺
動ペダル、１５ａ……上板部、１６……駆動係止
歯、１６ａ……係止突部、１６ｂ……逃がし傾斜
部、１７……駆動係止歯、１７ａ……係止突部、
１７ｂ……逃がし傾斜部、１８……ロープ、１９
……ブラケツト、２０……ローラ、２１……チエ
ーン張装部材。 The drawings show one embodiment of the present invention,
Figure 1 is a side view of the bicycle, Figure 2 is the − of Figure 1.
3 is an enlarged schematic side view showing the relationship between the sliding pedal and the chain, drive locking teeth, and drive transmission; FIG. 4 is an enlarged front view of the sliding pedal; and FIG. FIG. 6 is an enlarged side view of the sliding pedal, and FIG. 6 is an enlarged front view showing the operating state of the sliding pedal. 1... Frame, 1a... Front pipe, 1b...
Rear pipe, 1c...horizontal pipe, 2...saddle,
3...Rotating shaft, 4...Large sprocket, 5...Lower sprocket, 6...Rear wheel, 7...Small sprocket, 8...Transmission chain, 9...Upper shaft, 10...
Bearing, 11...Upper sprocket, 12...Chain, 12a...Back side, 13...Cover body, 1
3a...Curved portion, 14...Guide hole, 15...Sliding pedal, 15a...Top plate portion, 16...Drive locking tooth, 16a...Latching protrusion, 16b...Release slope portion, 17 ... Drive locking tooth, 17a ... Locking protrusion,
17b... Escape slope part, 18... Rope, 19
... Bracket, 20 ... Roller, 21 ... Chain tension member.

Claims

[Scope of Claim for Utility Model Registration] A rotating shaft installed in a hanger rack provided at the bottom of a bicycle frame having a large sprocket, a pair of left and right lower sprockets attached to both left and right ends of this rotating shaft, and a lower part of the bicycle saddle. , and a pair of left and right upper sprockets provided rearward from the lower sprocket, a pair of chains each hanging from the upper sprocket and the lower sprocket, and a large number of chain links constituting the chain, at least intermittently. A drive locking tooth provided with a locking protrusion provided on the upper surface in the driving direction of the chain, and a relief slope provided on the lower surface side of the locking protrusion, and the drive locking tooth. A drive transmission tooth having a locking protrusion on the lower surface in the driving direction of the chain that meshes with the chain, and a relief slope provided on the upper surface side of the locking protrusion, and the drive transmission tooth is provided on the back side. a pair of sliding pedals, a rope suspended from the frame connecting the pair of sliding pedals so as to be movable in opposite directions and latched to each sliding pedal, the upper and lower sprockets and the chain; a pair of cover bodies provided in an inclined manner on the frame, each covering the drive locking teeth and the drive transmission teeth, and having a guide hole on the front side into which the pair of sliding pedals slide; method bicycle. A buffer-type chain tensioning member for regulating loosening of the chain is provided at the lower part in the chain driving direction,
The pedal-down type bicycle according to claim 1, wherein the chain is provided on the back side of the chain.