JPH0422131Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a gear shift operating device for a vehicle, and more specifically, a shift lever and a transmission are connected to a gear shift operating member such as an outer lever by a push-pull wire. This invention relates to improvement of a gear shift operating device for a vehicle.

[Conventional technology]

Recently, in order to reduce the weight and cost of vehicle gear shift operating devices, a gear shift operating device using a push-pull wire in place of the conventional mechanical link operating mechanism has been proposed (Utility Model No. 62-141532). (see publication).

FIG. 2 shows a schematic overall view of the gear shift operation device of such a vehicle, showing the shift arm 1a and select arm 1b of the shift lever 1, the shift outer lever 5 and the select outer lever 7 that perform the gear shift operation of the transmission 3. are connected to each other using a push-pull wire 9, and the operation of the shift lever 1 is transmitted to the transmission 3 via an inner cable 9a of the push-pull wire 9. In the figure, reference numeral 11 is an outer casing that covers the inner cable 9a, and 13 is a boot that covers the sliding gap between the outer casing 11 and the inner cable 9a to prevent water and dust from entering. Further, reference numeral 15 is a support member that supports the outer casing 11, and 17 is a ball joint that connects the select lever 7 and the inner cable 9a.

However, since the push-pull wire 9 has higher rigidity than conventional link operation mechanisms, it is less susceptible to impact when the transmission shifts (so-called 2-stage shift occurs when the sleeve engages with the clutch gear). Impacts caused by objects or static phenomena, etc.)
The disadvantage was that the movement was easily transmitted to the hand via the shift lever 1, resulting in poor operating feel.

In order to solve this problem, as shown in FIG. 3, for example, an elastic material such as a rubber bushing 21 is attached to the housing 19 that connects the shift outer lever 5 and the inner cable 9a. Structures that absorb shock have been proposed. In addition, in Fig. 3, reference numeral 23
is a mounting pin for attaching the housing 19 to the shift outer lever; 25 is a nut; 27 is an outer cylinder for attaching the rubber bushing 21 to the housing 19; 29 is an inner cylinder attached to the center of the rubber bushing 21; A mounting pin 23 is inserted into the inner cylinder 29.

[The problem that the idea aims to solve]

Although the shock during shifting is somewhat alleviated by the rubber bushing 19, a considerable shock during shifting is still transmitted from the transmission to the hand, and the above-mentioned problem cannot be completely eliminated. It wasn't something. In addition, as the flexibility of the rubber bushing 21 is increased, the effect of mitigating the impact is further improved, but on the other hand, there is a problem as the lever stroke increases.

In connection with this, a mechanical clutch release type vibration transmission isolating device has been proposed in which a weight (damper weight) is attached to the tip of a push pull wire, a rubber bush (elastic body) is attached, and a relay fork is connected ( Jitsukai Showa 54-
115441).

If this device is used in the transmission system between the shift lever of the speed change operating device and the outer lever of the transmission, the impact generated during shifting will not be transmitted to the shift lever, and the increase in lever stroke can be suppressed. can.

However, in the above device, the weight is fixed to the inner cable with bolts, and as a result, the cable (wire) and the weight may rub against each other due to loosening over time, causing damage to the wire due to abrasion. In addition, the weight and rubber bushing housings are separate pieces, so
It has many parts and requires a large space.
Therefore, the cost is high. Furthermore, because the weight and the rubber bushing are mounted far apart, the position of the weight's center of gravity and the position where the relay fork (lever) acts on the rubber bushing are different.
This causes the rubber bush to become twisted and worn.

This idea was made in view of the actual situation,
Eliminates damage caused by wire wear, reduces the number of parts, takes up less space, and lowers costs.
Furthermore, it is an object of the present invention to provide a durable vehicle speed change operating device that reduces twisting and wear of the rubber bushing.

[Means to solve the problem]

In order to achieve the above object, the present invention fixes a cylindrical housing, which doubles as a weight, with an enlarged outer circumference and an increased cylindrical width, to the end of a push-pull wire, and a rubber bushing is installed inside the housing. death,
The shift outer lever is connected to the rubber bushing via a mounting pin and a nut so that the cylindrical side surface of the housing and the swinging surface of the shift outer lever of the transmission are in parallel contact.

[Effect]

If a housing that also serves as a cylindrical weight is directly fixed to the end of the push-pull wire, the wire will not become loose and damage caused by wire wear will be eliminated.
Furthermore, since the housing also serves as a weight, the number of parts is reduced, space is taken up, and costs are reduced.

Furthermore, according to the above configuration, the center of gravity of the weight acts on the point of action of the outer lever (the connection point between the rubber bushing and the shift outer lever by tightening the mounting pin and nut), that is, the point of action of the outer lever and the center of gravity of the weight coincide. Therefore, the rubber bushing is less likely to get twisted or worn out, making it more durable.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. In addition, regarding the configuration excluding the devised part, please refer to Part 2.
Since the structure is similar to that shown in the figure, the explanation thereof will be omitted here, and only the invented part will be explained. In addition, the same elements as those in the above-mentioned conventional example are indicated by the same reference numerals.

FIG. 1 shows a first embodiment of the present invention, in which a cylindrical housing 19' is fixed to the end of the inner cable 9a. The cylindrical housing 19' has its outer periphery enlarged to have an outer diameter m of the circular portion, and its cylindrical width is increased to have a wall thickness n to add a function as a weight. Its weight is
It is desirable that the weight is within the range of 0.2 to 2 kg.

Inside the housing 19', there is an outer cylinder 27 on the outside.
A rubber bushing 21 having an inner cylinder 29 is attached thereto.

The transmission 3 is attached to the rubber bush 21 by tightening the mounting pin 23 and nut 25.
A shift outer lever 5 is connected to the shift outer lever 5.

The rubber bush 21 and the shift outer lever 5 are connected by attaching the mounting pin 23 to the rubber bush 21 so that the cylindrical side surface of the housing 19' and the inner swinging surface of the shift outer lever 5 are in parallel contact.
The shift outer lever 5 is connected to the shift outer lever 5 via a nut 25.

According to such a device, the push-pull wire 21
A housing 19' that also serves as a cylindrical weight is attached to the end of the housing 19'.
Since the wires 21 are directly fixed, there is no loosening of the wire 21, so there is no rubbing due to the loosening of the wire, and damage due to wire wear is eliminated.

Furthermore, since the housing 19' also serves as a weight with an impact damping function, the number of parts is reduced and space is reduced. Therefore, the cost becomes low.

Furthermore, since the shift outer lever 5 is connected to the rubber bushing 21 via the mounting pin 23 and nut 25 so that the cylindrical side surface of the housing 19' and the swinging surface of the shift outer lever 5 of the transmission 3 are in parallel contact, The center of gravity of the weight acts on the point of action of the outer lever 5. That is, the outer lever 5
The point of action of the weight matches the center of gravity of the weight, which reduces twisting and wear of the rubber bushing 21.
Durability can be increased.

[Effect of idea]

As described above, the present invention eliminates loosening of the push-pull wire and eliminates damage caused by wire wear. In addition, the number of parts is reduced, space is reduced, and costs are reduced.

Furthermore, the rubber bushing is less likely to be twisted or worn, resulting in increased durability.

[Brief explanation of the drawing]

Figure 1 is a perspective view of essential parts of an embodiment of the present invention;
FIG. 3 is a schematic overall view of a conventional vehicle speed change operating device, and FIG. 3 is a perspective view of a main part of a connecting portion between an outer lever and a push-pull wire of a conventional transmission. 3...Transmission, 5...Shift outer lever, 9...Push-pull wire, 9a...
Inner cable, 19'...Housing, 21
...Rubber bushing, 23...Mounting pin, 25...
...Natsuto.

Claims (1)

[Scope of utility model registration request] A cylindrical housing that doubles as a weight and whose outer periphery has been enlarged and whose width has been increased is fixed to the end of the push-pull wire, and a rubber bushing is installed inside the housing, so that the cylindrical side of the housing and the transmission 1. A shift operating device for a vehicle, characterized in that a shift outer lever is connected to the rubber bushing via a mounting pin and a nut so that swinging surfaces of the shift outer lever are in parallel contact with each other.