JPH02145341U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図から第３図は、本考案の実施例を示すも
ので、第１図ａは本考案の実施例の逆転時の状態
を示す要部正断面図、第１図ｂは本考案の実施例
の正転時の状態を示す要部正断面図、第２図は本
考案の一実施例を示す一部断面正面図、第３図ａ
は逆転時におけるプツシユピン部分の拡大正断面
図、第３図ｂは逆転から正転への切り換え時にお
けるプツシユピン部分の拡大正断面図、第３図ｃ
は正転時におけるプツシユピン部分の拡大正断面
図、第３図ｄは正転から逆転への切り換え時にお
けるプツシユピン部分の拡大正断面図、第４図は
従来例を示す概要図、第５図は従来装置の正断面
図である。 ２０……駆動軸、２１……駆動ベベルギア、２
２……正転ベベルギア軸、２３……正転クラツチ
デイスク、２５……正転クラツチデイスク、２７
……出力軸、２８……逆転ベベルギア軸、２９…
…逆転クラツチデイスク、３１……逆転クラツチ
デイスク、３７……ピストン（移動手段）、３８
……コイルバネ。 1 to 3 show an embodiment of the present invention, FIG. 1a is a front sectional view of the main part showing the state of the embodiment of the present invention when it is reversed, and FIG. 1b is a front sectional view of the main part of the embodiment of the present invention. FIG. 2 is a front cross-sectional view of the main part showing the state of the embodiment during normal rotation; FIG. 2 is a partially sectional front view showing an embodiment of the present invention; FIG. 3 a
is an enlarged front sectional view of the push pin portion during reverse rotation, FIG. 3 b is an enlarged front sectional view of the push pin portion when switching from reverse rotation to normal rotation, and FIG. 3 c
is an enlarged front sectional view of the push pin portion during forward rotation, FIG. 3 d is an enlarged front sectional view of the push pin portion when switching from normal rotation to reverse rotation, FIG. 4 is a schematic diagram showing a conventional example, and FIG. 5 is an enlarged front sectional view of the push pin portion during forward rotation. FIG. 2 is a front sectional view of a conventional device. 20... Drive shaft, 21... Drive bevel gear, 2
2...Normal rotation bevel gear shaft, 23...Normal rotation clutch disk, 25...Normal rotation clutch disk, 27
...Output shaft, 28...Reverse bevel gear shaft, 29...
... Reverse clutch disk, 31 ... Reverse clutch disk, 37 ... Piston (transfer means), 38
...Coil spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 駆動軸の先端に駆動ベベルギアを設け、該駆動
軸の先端外方に該駆動軸と略直交させて出力軸を
配し、該出力軸に、一端に各々正転ベベルギアと
逆転ベベルギアを有する正逆一対の筒状ベベルギ
ア軸を、前記駆動ベベルギアの両側に正転ベベル
ギアと逆転ベベルギアとを向かい合わせて、前記
出力軸に対し回転自在かつ軸方向に移動自在に嵌
入し、かつ、前記正転ベベルギアおよび逆転ベベ
ルギアを各々駆動ベベルギアに噛合連結せしめる
とともに、前記正逆一対の筒状ベベルギア軸の他
端に各々クラツチデイスクを取付け、前記出力軸
に前記一対の筒状ベベルギア軸の各クラツチデイ
スクに対応する一対のクラツチデイスクを出力軸
に対し回転不能に装着し、前記筒状ベベルギア軸
側のクラツチデイスクと出力軸側のクラツチデイ
スクとの間に間隔を持たせるとともに、前記出力
軸の一端に該出力軸を常に一方向に付勢するバネ
を配置し、さらに、前記出力軸に前記バネによる
付勢方向と逆方向に該出力軸を移動させる移動手
段を設けたことを特徴とする回転方向切換え可能
な動力伝達装置。 A drive bevel gear is provided at the tip of the drive shaft, and an output shaft is arranged outside the tip of the drive shaft so as to be substantially perpendicular to the drive shaft, and the output shaft has a forward rotation bevel gear and a reverse rotation bevel gear at one end. A pair of cylindrical bevel gear shafts are fitted into the output shaft so as to be freely rotatable and movable in the axial direction, with a forward bevel gear and a reverse bevel gear facing each other on both sides of the drive bevel gear, and the forward bevel gear and The reversing bevel gears are meshed and connected to the driving bevel gears, a clutch disk is attached to the other end of the pair of forward and reverse cylindrical bevel gear shafts, and a pair of clutch disks corresponding to each clutch disk of the pair of cylindrical bevel gear shafts is attached to the output shaft. A clutch disk is mounted non-rotatably on the output shaft, with a gap between the clutch disk on the cylindrical bevel gear shaft side and the clutch disk on the output shaft side, and the output shaft is attached to one end of the output shaft. A power source capable of switching the direction of rotation, characterized in that a spring that always biases in one direction is disposed, and a moving means is provided on the output shaft to move the output shaft in a direction opposite to the direction in which the spring biases the output shaft. transmission device.