Speed transmission case
A technology of transmission and transmission mechanism, applied in the direction of transmission box, transmission parts, components with teeth, etc., can solve the problems of unrealized light weight, deformation of bearing support hub, insufficient strength or rigidity, etc.
Inactive Publication Date: 2013-06-05
JATCO LTD
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0016] (4) A synthetic resin cover is provided to cover the outer side of the transmission metal bearing and the crankcase cover. In the cross-sectional direction of the crankcase part, the case body and the synthetic resin cover are formed into a double-layer structure, and weight reduction has not been achieved.
In this case, when there is an input to the side cover via the vehicle body bracket or a load input from the shaft member of the transmission mechanism, the strength or rigidity of the annular bearing support hub that rotatably supports the shaft member is insufficient.
Therefore, there is a problem that the bearing support hub deforms with the input of load, and the shaft center shifts.
Method used
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Embodiment 1
[0065] First, the configuration will be described.
[0066] The configuration of the transmission case of the first embodiment will be described as "overall configuration" and "detailed configuration of the side cover".
[0067] "Overall Composition"
[0068] figure 1A belt-type continuously variable transmission mounted on a transmission case of an automobile to which a side cover having a composite material structure according to Example 1 is applied is shown. Below, based on figure 1 Describe the overall configuration.
[0069] Such as figure 1 As shown, the transmission case TC of Embodiment 1 is connected with the transversely mounted engine ENG, and by dividing the main transmission case 1 (case member), the torque converter cover 2 (case member) and the side cover 3 (case member) Components) are formed by flanged joints with each other. Furthermore, each shaft member of the belt-type continuously variable transmission mechanism 4 (transmission mechanism) assembled...
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The invention discloses a transmission case which copes with light weight requirements of a case body and satisfies the strength requirement that a shaft core offset caused by deformation of annular bearing support wheel hubs which can rotatably support shaft parts can be restraint. In the transmission case (TC) which is formed by combining flanges of a main transmission case (1), a torque converter cover (2), and a side cover (3) which are partitioned, the side cover (3) forms a combined material, and the combined material is formed by a metal frame (5) and a resin cover (6) which blocks an opening part of the metal frame (5). The metal frame (5) which is used as reinforcing ribs is provided with a first rib (54), a second rib (55), a third rib (57), and a forth rib (56), wherein a first support wheel hub (54a) and a first bearing support wheel hub (52) are connected by the first rib (54), a second support wheel hub (55a) and a second bearing support wheel hub (53) are connected by the second rib (55), the second rib (55) is combined with the second support wheel hub (55a) and the second bearing support wheel hub (53) at an outer peripheral flange (51), and the first bearing support wheel hub (52) and the outer peripheral flange (51) are connected by the third rib (57). The third rib (57) and the second rib (55) which do not intersect with each other are connected by the forth rib (56) at a set position of two bearing support wheel hubs (52, 53).
Description
technical field [0001] The present invention relates to reduction in weight while ensuring strength in a transmission case configured by flange-bonding a plurality of divided case members to each other and rotatably supporting a shaft member of a transmission mechanism assembled inside. technology. Background technique [0002] In the past, for the purpose of providing a light-weight crankcase cover for a vehicle engine, a crankcase cover for a vehicle engine comprising a metal bearing holder and a synthetic resin cover main body is known (for example, refer to Patent Document 1 ). [0003] Patent Document 1: (Japanese) Unexamined Patent Application Publication No. 2000-18348 [0004] However, in a conventional crankcase cover of a vehicle engine, a metal bearing holder is constituted by a bearing holding portion, a leg portion, and a reinforcing portion. And the front-end|tip part of the said leg part is fixed to the crankcase half part together with a synthetic resin co...
Claims
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IPC IPC(8): F16H57/02F16H57/03F16H57/031F16H57/035
CPCF16H57/03F16H57/031F16H57/032F16H2057/02091
Inventor 有竹贵司守屋雅仁木村敦史
Owner JATCO LTD