JPS6332505Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a support structure for a control lever in a manual transmission.

(Prior art) A conventional example of this type of support structure is shown in Figure 1 (NISSAN Service Bulletin No. 440).
No. Nissan Stanza FX, Austa JX, Violet Liberda 108 pages (June 1981, published by Nissan Motor Co., Ltd.). This relates to a FF vehicle (front engine front drive vehicle) in which the engine is placed horizontally on the vehicle body, and the control lever 100 is supported spherically by a spherical seat 102 on a bracket 101, and the bracket 101 has mount rubbers 103, 104 on both sides. It is constructed in the floor tunnel 105 on the vehicle body side with a . A control rod 106 that connects one end to a transmission (not shown) is connected to the lower end of the control lever 100.
By selecting and shifting, the meshing relationship of the transmission gears can be changed to achieve each gear position. To ensure this operation, the bracket 101 is connected to the transmission with a support rod (not shown).
The bracket 101 and the transmission are integrally constructed. The rocking and vibrations of the engine are absorbed by the respective mount rubbers 103 and 104, and their transmission to the floor tunnel 105 is cut off. 107 is a select stopper that restricts the selection operation of the control lever 100, 108 is a return spring of the control lever 100, and 109 is a dustproof boot.

However, in the support structure of the control lever in such a manual transmission, the control lever 100 is supported by directly interposing mounting rubbers 103 and 104 on the floor tunnel 105 on the vehicle body side. There is a problem in that the vibrations are transmitted to the floor tunnel 105, which has relatively low rigidity, causing vibrations and muffled noise inside the vehicle.

(Purpose of the invention) This invention was made in view of these conventional problems.The mount rubber is placed on the extension of the straight line connecting the connection part of the support rod to the transmission and the spherical support part of the control lever. A support member is placed below the support rod bracket, and is installed on the floor tunnel to fix the mount rubber. It is an object of the present invention to solve the above-mentioned problems by imparting a function to the support member.

(Embodiments) This invention will be described below with reference to illustrated embodiments.

A first embodiment is shown in FIGS. 2-4. In the figure, reference numeral 1 denotes a support rod whose one end is connected to a transmission (not shown) and the other end is connected to a support rod bracket 2. The control lever 3 has a ball portion 3a connected to a spherical surface on the bracket 2. It is spherically supported by the seat 4. Reference numeral 5 denotes a supporting member, which is formed into a U-shaped cross section to provide high rigidity, and is attached at one end with a bolt 7 to one side of a floor tunnel 6, which is formed for the purpose of accommodating an exhaust pipe and increasing the rigidity of the vehicle body. Fix it and connect the other end to the floor tunnel 6.
It is fixed to the other upper surface of the support rod bracket 2 with a bolt 8, and is positioned below the support rod bracket 2.

The mount rubber 9 is positioned on an extension of the straight line connecting the connection part of the support rod 1 to the transmission and the spherical support part of the control lever 3, and is attached to the bolt 11 on the support rod bracket 2 with a spacer 10 interposed. Fixed. The mount rubber 9 is fixed to the support member 5 on both sides by screwing a support plate 12 vulcanized and bonded on one side with bolts 13 and a bracket 14 vulcanized and bonded on the other side with bolts 15. be. Therefore, the support rod bracket 2 is elastically supported via the mount rubber 9 by the support member 5 fixed to the floor tunnel 6 on the vehicle body side.

The control rod 16 has one end connected to the lower end of the control lever 3, and the other end connected to the transmission. A return spring 17 is stretched between the bracket 14 and the control rod 16.

With such a control lever support structure in a manual transmission, the support rod bracket 2 is supported by the support member 5 via the mount rubber 9, and the support member 5 acts as a strength member for the floor tunnel 6. Therefore, even if engine vibrations are transmitted to the floor tunnel 6, vibrations and muffled noise within the vehicle interior are unlikely to occur.

FIG. 5 shows a second embodiment. The support rod 1, support rod bracket 2, control lever 3, ball portion 3a, spherical seat 4, floor tunnel 6, mount rubber 9, spacer 10, bolt 11 and control rod 16 are the same as in the first embodiment.

Then, a reinforcing member 18 having a U-shaped cross section is fixed to the inner surface of the floor tunnel 6 by welding or the like.
A support member 19 is horizontally suspended at 8 using bolts 20 and 21. The mount rubber 9 has bolts 24 and 23 attached to brackets 22 and 23 which are vulcanized and bonded on both sides, respectively.
25 is screwed and fixed to the support member 19.
In this way, the support rod bracket 2 is attached to the reinforcing member 18 via the mount rubber 9 and the supporting member 19.
It is elastically supported by a floor tunnel 6 reinforced with.

According to this embodiment, the stiffness of the floor tunnel 6 is further improved by the action of the reinforcing member 18, so that
Vehicle interior vibration and muffled noise can be more effectively prevented.

(Structure of the invention) As explained above, according to the invention, the structure includes a support rod whose one end is connected to the transmission and the other end is connected to the support rod bracket, and a spherical seat on the bracket. A straight line connecting the supported control lever, the control rod that connects one end to the transmission and the other end to the control lever, and the connection of the support rod to the transmission and the spherical support of the control lever. A mount rubber is positioned on the extension and fixed to the support rod bracket, and a mount rubber is positioned below the support rod bracket and installed in the floor tunnel, and the mount rubber is fixed to support the support rod bracket on the vehicle body. This is a support structure for a control lever in a manual transmission having a support member.

(Effect of idea) Therefore, the following effects can be obtained.

The support rod bracket is elastically supported on a high-rigidity support member via a mounting rubber, and the support member is fixed to the floor tunnel, so that it has excellent vibration absorbing properties and can effectively prevent vibration and muffled noise inside the vehicle cabin even if engine vibration is transmitted to the floor tunnel.

Since the rigidity of the floor tunnel and the strength of the vehicle body are improved by the action of the support member, the structure is advantageous against impact input during a vehicle collision.

The mount rubber is located on the extension of the straight line connecting the connection part of the support rod to the transmission and the spherical support part of the control lever, so the reaction force when the control lever is activated is compressed and deformed by the mount rubber and sheared. Since there is almost no deformation, a sense of moderation of the control lever can be obtained. As a result, a conventional select stopper is not required.

Since the support member is located below the support rod bracket, the control lever will not fall off even if the mount rubber breaks.

The support member, the mount rubber, the support rod bracket, and the support rod are connected, and these have a function as a buffer rod and regulate the rocking of the engine.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the control lever support structure in a conventional manual transmission;
The figure is a front view with half cut away showing the first embodiment of this invention, FIG. 3 is a side view with half cut away,
FIG. 4 is a plan view, and FIG. 5 is a partially cutaway front view showing a second embodiment of this invention. 1: Support rod, 2: Support rod bracket, 3: Control lever, 4: Spherical seat,
5, 19: Support member, 6: Floor tunnel, 9:
Mount rubber, 16: Control rod, 1
8: Reinforcement member.

Claims (1)

[Scope of utility model registration request] A support rod has one end connected to the transmission and the other end connected to a support rod bracket, a control lever supported spherically on a spherical seat on the bracket, and one end connected to the transmission and the other end for control. A control rod connected to the lever, a mount rubber fixed to the support rod bracket located on an extension of a straight line connecting the connection part of the support rod to the transmission and the spherical support part of the control lever, and the support rod. A support structure for a control lever in a manual transmission, comprising a support member located below a dowel bracket and installed in a floor tunnel to fix the mount rubber and support the support rod bracket to a vehicle body. .