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Locking pin for the leaf spring of the ring wheel in a planetary gear

IP.com Disclosure Number: IPCOM000200599D
Publication Date: 2010-Oct-20
Document File: 3 page(s) / 1M

Publishing Venue

The IP.com Prior Art Database

Abstract

The transmission in a vehicle consists of several gears made up of interacting gearwheels on parallel axles. Such transmissions can also comprise a planetary gear between the regular gears and the output shaft. With such an arrangement, the number of gears in the transmission can be doubled. A planetary gear consists of a ring wheel, planet wheels and a sun wheel. When the gear is mounted to the gear box it is held in place by leaf springs which in turn are held in place by locking pins. These locking pins are small and difficult to handle during assembly of the gear. The proposed solution to this problem is to manufacture the pins consecutively attached with a fractural impression, a nick, between each pin. The pins thus form a wire of pins. When mounting the pin, the operator can hold on to the entire wire and when a locking pin is in place on the ring wheel, the operator simply breaks the wire at the nick.

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Locking pin for the leaf spring of the ring wheel in a planetary gear

Abstract

The transmission in a vehicle consists of several gears made up of interacting gearwheels on parallel axles. Such transmissions can also comprise a planetary gear between the regular gears and the output shaft. With such an arrangement, the number of gears in the transmission can be doubled. A planetary gear consists of a ring wheel, planet wheels and a sun wheel. When the gear is mounted to the gear box it is held in place by leaf springs which in turn are held in place by locking pins. These locking pins are small and difficult to handle during assembly of the gear. The proposed solution to this problem is to manufacture the pins consecutively attached with a fractural impression, a nick, between each pin. The pins thus form a wire of pins. When mounting the pin, the operator can hold on to the entire wire and when a locking pin is in place on the ring wheel, the operator simply breaks the wire at the nick.

 


Description

The transmission in a vehicle consists of several gears made up of interacting gearwheels on parallel axles. Such transmissions can also comprise a planetary gear between the regular gears and the output shaft. With such an arrangement, the number of gears in the transmission can be doubled.

A planetary gear consists of a ring wheel, planet wheels and a sun wheel. When the gear is mounted to the gear box it is held in place by leaf springs which in turn are held in place by locking pins. See figure 1.

 
 

leaf spring

 
 

locking pin

 

ring wheel

 

Fig. 1 A locking pin according to the prior art has been inserted into the ring wheel to keep the leaf spring in place.

These locking pins are small and difficult to handle during assembly of the gear. The proposed solution to this problem is to manufacture the pins consecutively attached with a fractu...