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Shift and selection mechanism of transmission device

A technology of speed change device and selection mechanism, which is applied in the direction of mechanical control device, transmission device control, controlled components, etc. It can solve the problems of enlargement and deformation of gear selection shaft, and achieve the effect of preventing shaft deformation and reducing stress concentration

Active Publication Date: 2019-08-16
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the stress generated near the opening on the thread head side of the threaded hole provided on the shift selection shaft is the tensile stress due to the axial force of the thread and the reaction force due to the load generated in the shift arm. The sum of the tensile stresses caused by this becomes larger, and if the tensile stress generated in the shift selection shaft reaches the yield point, deformation of the shift selection shaft may occur, etc.

Method used

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  • Shift and selection mechanism of transmission device
  • Shift and selection mechanism of transmission device
  • Shift and selection mechanism of transmission device

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Embodiment Construction

[0043] Below, according to Figure 1 ~ Figure 7B One embodiment of the shift and selection mechanism of the transmission of the present invention will be described.

[0044]

[0045] Such as figure 1 As shown, the transmission device 10 is provided with a selection device 21 and a shift device 22 disposed on a base 16 fixed to the transmission housing, one end 23a of a selector lever 23 of the selection device 21 and one end of a lever arm 24 of the shift device 22 24a is connected to the shift lever via a wire (not shown) or the like, and can be operated by the shift lever.

[0046] A selector lever 23 formed in a substantially L-shape is fixed to a rotary shaft 25 rotatably supported about a horizontal axis. The other end 23b of the select lever 23 is inserted into a through hole 26a provided in a shift selection shaft 26 described later, and engaged with the through hole. In addition, the other end 24 b of the lever arm 24 is fixed to the shift selection shaft 26 . Ac...

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Abstract

The present invention provides a shift and selection mechanism of a transmission device capable of preventing deformation of a shift selection shaft. A shift and selection mechanism (20) of a transmission (10) is provided with: a shift select shaft (26); a lever arm (24); a shift arm (27); and a fastening bolt (28) which is inserted into a first bolt hole (261) formed in the shift selection shaft(26) and a second bolt hole (272) formed in a connection part (27a) of the shift arm (27) and connects the shift selection shaft (26) and the shift arm (27). The shift select shaft (26) has a chamfered portion (C1) in a bolt head side opening portion of the first bolt hole (261), the chamfered portion (C1) being a surface orthogonal to the axial center (SC2) of the first bolt hole (261) on a crosssection passing through the axial center (SC2) of the first bolt hole (261) and orthogonal to the axial center (SC1) of the shift select shaft (26).

Description

technical field [0001] The present invention relates to a shift and selection mechanism mounted in a transmission device such as a vehicle. Background technique [0002] Conventionally, a transmission is mounted on a vehicle or the like. Generally, in a speed change device, a plurality of speed change gear trains are provided between a main shaft and a counter shaft, and each speed change gear train is switched by a shift and selection mechanism driven according to a speed change operation. For example, Patent Document 1 discloses a shift and select mechanism in which a shift arm fixed to a shift select shaft by a thread is moved together with the shift select shaft by a shift operation. Drive to drive the shift fork shaft of each transmission gear train. [0003] prior art literature [0004] Patent Document 1: Japanese Patent Laid-Open No. 2005-233361 [0005] In the shifting and selecting mechanism of the speed changer of Patent Document 1, the shifting and selecting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/34F16H63/32
CPCF16H61/34F16H63/32F16H2063/324
Inventor 内野雄之
Owner HONDA MOTOR CO LTD
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