JPS632911Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an oil shielding device for a gear shift lever.

Conventionally, a shift lever that performs multi-speed shifting consists of a spherical lever fulcrum located approximately in the center, a lever leg extending downward from the lever fulcrum, and an operating portion extending upward from the lever fulcrum. It is rotatably supported by the support part of the transmission lever case connected to the upper part of the transmission case, and a centering spring that biases the transmission lever toward the transmission case is installed in a compressed state on the outer periphery of the lever leg. has been done. A presser plate is fixed to the upper side of the support portion to prevent the lever fulcrum from slipping upward, and the presser plate and lever fulcrum are connected to the outer peripheral surface of the operating portion at the top and to the gearshift lever case at the bottom. This boot prevents the gear oil in the transmission case that has passed through the lever fulcrum from leaking to the outside, and also prevents dust from adhering to the lever fulcrum. Therefore, if the precision or quality of the boots is poor, or if the boots become old, they have the disadvantage of causing oil leakage.

This idea was devised in view of these points, and is a shift lever that reliably prevents the gear oil inside the transmission case from leaking to the outside and that can easily and reliably hold the oil shielding member. The purpose is to obtain an oil shielding device.

This idea connects a transmission lever case to the upper part of a transmission case that houses multiple rotating bodies and stores gear oil, and the lever is rotatably supported by a support formed above the transmission lever case. A gear shift lever having a fulcrum and a lever leg extending from the lever fulcrum into the transmission case is provided, the lower end of which is latched to the gear shift lever, and the upper part of the gear lever is expanded to bias the gear shift lever downward. a conical oil-shielding membrane provided with a conical center spring, the upper end of which is pressed by the center spring and joined and held to the peripheral edge of the support part, and the lower end of which is joined and held to the outer peripheral surface of the lever leg part; It has been established. Therefore, even if the gear oil in the transmission case is scattered, the oil-shielding film prevents the gear oil from adhering to the lever fulcrum, and prevents the gear oil from passing through the lever fulcrum and leaking to the outside.
Since the oil-shielding film is also maintained by the center spring that biases the gear shift lever downward, the structure is such that its retention and airtightness are ensured.

A first embodiment of this invention will be described based on FIGS. 1 and 2. The transmission case 1 houses rotating shafts 2 that are rotating bodies that are connected to a drive unit (not shown) and gears 3 that are rotating bodies that are fitted onto these rotating shafts 2 while preventing rotation. is,
Further, gear oil 4 is stored within this transmission case 1. A shift lever case 5 is fixedly connected to the upper part of the transmission case 1, and a lever fulcrum 8 of a shift lever 7 is rotatably supported on a support portion 6 of the shift lever case 5. The lever fulcrum 8 has a substantially spherical shape, and the shift lever 7 is connected to the lever fulcrum 8, a lever leg 9 extending downward from the lever fulcrum 8, and an operating portion 10 extending upward from the lever fulcrum 8. It is configured. The support part 6 has an opening at an upper part and a lower part, and the opening at the lower part is connected to the lever fulcrum 8.
A holding plate 11 is screwed to the upper opening side of the support portion 6 to prevent the lever fulcrum 8 from coming off upward. and,
A boot 12 is provided to cover the upper side of the presser plate 11 and the lever fulcrum 8, and the top of the boot 12 is joined to the outer peripheral surface of the operating section 10, and the hem part is joined to the outer peripheral edge of the shift lever case 5. has been done.

Therefore, the tip end of the lever leg 9 is inserted into the shifter oak 13 in the mission case 1.
A centering spring 15 is mounted in a compressed state on the outer periphery of the lever leg 9 to urge the shift lever 7 toward the transmission case 1. Further, on the outer periphery of the lever leg 9, a supporting portion 6 is located inside the centering spring 15, and the upper end covers the side of the lever fulcrum 8 facing the transmission case 1, and the centering spring 15 supports a supporting portion 6.
An extensible conical oil-shielding film 16 is provided which is joined and held to the peripheral edge of the lever leg 9 and whose lower end is joined and held to the outer peripheral surface of the lever leg 9.

In such a configuration, when driving, the rotating shaft 2
Then, the gear 3 rotates and the gear oil 4 is scattered.
Gear oil 4 scattered towards the lever fulcrum 8 direction
is blocked by the oil-shielding film 16 from entering into the oil-shielding film 16, and the gear oil 4 is prevented from adhering to the lever fulcrum 8. Therefore, the gear oil 4 does not accumulate inside the boot 12, and oil leakage from inside the boot 12 is prevented. Furthermore, the structure is extremely simple, as the oil-shielding film 16 is simply attached to a conventional gear shift lever device. Note that even if oil intrudes from the joint between the oil-shielding film 16 and the lever leg 9, the amount is very small and does not pass through the lever fulcrum 8 and accumulate in the boot 12.

Next, a second embodiment of this invention will be explained based on FIG. Note that the same parts as those described in FIGS. 1 and 2 are designated by the same reference numerals, and the description thereof will be omitted. In this embodiment, the centering spring 15 and the oil-shielding film 17 are integrally formed.
The upper end side of the oil-shielding film 17 is the centering spring 1
5 to the peripheral edge of the support portion 6, and the lower end side of the oil-shielding film 17 is also bonded and held to the outer peripheral surface of the lever leg portion 9 by a centering spring 15.

In such a configuration, the oil shielding film 17 prevents the scattered gear oil 4 from adhering to the lever fulcrum 8, thereby preventing oil leakage from within the boot 12. Moreover, the structure is extremely simple.

As mentioned above, by providing an oil-shielding film that covers the side of the lever fulcrum facing the transmission case, this invention can prevent the spattered gear oil in the transmission case from adhering to the lever fulcrum. , gear oil can be prevented from leaking outside through the lever fulcrum, and the upper end of the oil-shielding film is joined and held to the periphery of the support part by the center spring that biases the gear shift lever downward, so the oil-shielding film can be prevented from leaking to the outside through the lever fulcrum. The oil film can be easily installed and oil leakage can be reliably prevented.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view showing the first embodiment of this invention, Fig. 2 is a longitudinal side view enlarging a portion thereof,
FIG. 3 shows a second embodiment of this invention, and is a partially enlarged longitudinal sectional side view. 1...Mission case, 2...Rotating shaft (rotating body), 3...Gear (rotating body), 4...Gear oil,
5... Speed lever case, 6... Support part, 7...
Gear shift lever, 8... Lever fulcrum, 9... Lever leg, 16-17... Oil-shielding film.

Claims (1)

[Scope of utility model registration request] A transmission lever case is connected to the upper part of a transmission case that houses a plurality of rotating bodies and stores gear oil, and a lever fulcrum that is rotatably supported by a support formed above the transmission lever case and this lever are connected to each other. A gear shift lever having a lever leg extending from a fulcrum into the transmission case; A spring is provided, and an extensible conical oil-shielding film is provided, the upper end of which is pressed by the center spring and connected and held to the peripheral edge of the support part, and the lower end of which is connected and held to the outer peripheral surface of the lever leg part. A gear shift lever oil blocking device featuring: