Power transmission device
The power transmission device addresses the high assembly costs and time of existing devices by using symmetrical tooth inclination and axial movement restrictions to simplify gear positioning and assembly.
JP2025042848APending Publication Date: 2025-03-28TOYOTA JIDOSHA KK
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Patent Information
- Application Number
- JP2023150018
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-15
- Publication Date
- 2025-03-28
AI Technical Summary
Technical Problem
Existing power transmission devices with spring rings for gear positioning increase assembly man-hours and costs due to the need for separate springing mechanisms.
Method used
A power transmission device with symmetrical tooth inclination in both gears, where one gear is fixed within a case with restricted axial movement, and the other gear has clearance in the axial direction, allowing for easy assembly and positioning without additional members.
Benefits of technology
Facilitates easy positioning of gears while reducing assembly costs and time, with symmetrical tooth inclination canceling thrust forces and automatically determining axial position.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide a power transmission device capable of easily positioning a double helical gear while suppressing an increase in the cost and a reduction in the assemblability.SOLUTION: A power transmission device 1 includes one gear 6 integrated with a first shaft 5 and having a tooth stripe inclined in a bilateral symmetry in an axial direction, an other gear 9 integrated with a second shaft 8 and having a tooth stripe inclined in the bilateral symmetry in the axial direction, and a case 4 in which the one gear 6 and the other gear 9 are stored in a state of engaging with each other, the first shaft 5 being stored in the caser 4 in a state where the movement in the axial direction is restricted, and the second shaft 8 being stored in a state where clearances 10 are formed between each end of the second shaft 8 and an inner wall face of the case 4 in the axial direction.SELECTED DRAWING: Figure 1
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