JPH0356687Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a remote control mechanism for a gear transmission in a vehicle.

[Prior Art] Remote control of a cable-type gear transmission in which the operation of the gear shift lever is transmitted to the gear transmission via a remote control cable when the operator's cab is located away from the gear transmission. As a mechanism, there is one disclosed in, for example, Japanese Utility Model Application Publication No. 59-32522. In this conventional technology, the outer tube of a remote control cable consisting of an outer tube and an inner cable inserted through the outer tube is used as a guide, and the select operation of the gear change lever is performed as a rotational movement of the inner cable, and the shift operation of the gear change lever is performed using the axis of the inner cable. The respective directional movements are transmitted to the gear transmission. In this way, when the gear transmission mechanism is operated by rotating and pushing/pulling the inner cable, if the inner cable is long, twisting will occur in the middle, and the selection operation of the gear shift lever will not reach the gear transmission. There is a fear that it is not completely communicated. In addition, since the connecting part between the inner cable and the gear shift lever moves slightly in the vertical direction when the gear shift lever is shifted, the inner cable is slightly curved at the part where it protrudes from the outer tube, allowing smooth sliding at this part. This may lead to problems such as the inner cable being bent or worn out after long-term use.

[Problems to be solved by the invention] In view of the above-mentioned problems, the purpose of the invention is to use an outer tube with strong torsional rigidity to guide the inner cable by the rotational movement caused by the selection operation of the gear shift lever and the axial movement caused by the shift operation. achieved as,
To provide a remote control mechanism for a gear transmission in which an outer tube is smoothly guided in the axial direction of an inner cable without being bent at a portion where the inner cable projects from the outer tube.

[Means for Solving the Problems] In order to achieve the above object, the structure of the present invention is such that the base of the outer tube is slidably and rotatably supported on the bracket, and the gear shift lever is tiltably supported, so that the outer tube The end of the inner cable inserted through the gearshift lever is extended toward the center of tilting of the gearshift lever and fixed to the bracket, and the gearshift lever and the base are connected by a connecting member.

[Function] Outer tubes 14, 34 through which the inner cables 10, 30 are inserted through one end wall of the brackets 1, 21.
The bases 13 and 33 are supported so as to be slidable and rotatable, and the speed change levers 5 and 25 are supported on the other end wall by spherical bearings B so as to be tiltable left and right and front and back. The outer tube bases 13, 33 and the speed change levers 5, 25 are connected by an arm 16 or a link 36 as a connecting member.

Therefore, by tilting the shift levers 5, 25 left and right (select operation), the outer tubes 14, 3
The bases 13 and 33 that connect 4 are the inner cable 1
0, 30 as a guide, and the outer tube 1 is rotated through the connecting members 16, 36 by tilting the gear levers 5, 25 back and forth (shift operation).
The ferrules 13 and 33 that connect the ferrules 4 and 34 are pushed and pulled in the axial direction, and the transmission mechanism of the gear transmission is operated.

[Example of the invention] The invention will be explained based on an example. As shown in FIG. 1, a bracket 1 fixed to a floor panel of a vehicle body, specifically a driver's cab, has a bearing 12 on one end wall 2 and a housing 3 on the other end wall. A spherical bushing 4 consisting of two parts that holds the lower end ball part 6 of the gear shift lever 5 between the cylindrical part 20 and the housing 3 is fitted into the housing 3, and is locked with a retaining ring 19 to prevent it from coming off, thereby forming a spherical bearing B. be done.

On the other hand, the outer tube 1 is attached to the bearing 12 of the end wall 2.
A base 13 connecting the two is supported rotatably and slidably in the axial direction. A rod 9 that connects the inner cable 10 is inserted into the base 14 through a sleeve 22. The rod 9 constitutes an extension of the inner cable 10 and extends toward the center of the spherical bearing B.
The end is fixed to the end 8 of the housing 3 by a nut 11. The inner cable 10 has a coating 10a for smooth sliding with the outer tube 14.
will be applied. The rod 9 of the inner cable 10 is arranged so as to be located on a line connecting the center of the spherical bearing B and the center of the bearing 12.

An arm 16 serving as a connecting member has one end fitted onto the outside of the base 13 and fixed with a nut 15. arm 1
A spherical bearing A having a vertical shaft hole 17 is formed at the other end of the spherical bearing A. That is, a spherical bush 18, which is a split body that holds the spherical portion 7 provided at the intermediate portion of the speed change lever 5, is slidably fitted into the shaft hole 17.

Next, the operation of the remote control mechanism for a gear transmission according to the present invention will be explained. When the gear shift lever 5 is tilted laterally (in a direction perpendicular to the paper plane of FIG. 1) about the lower end ball portion 6, the arm 16 rotates along with the base 13 in the same angle in the circumferential direction as the gear shift lever 5, and this rotation is transmitted to a transmission mechanism of a gear transmission (not shown) via the outer tube 14, and a selection operation is achieved.

When the gear shift lever 5 is tilted back and forth (left and right in FIG. 1) around the lower end ball portion 6, the base 13
An arm 16 fixed to moves in the axial direction along the bearing 12 without changing its posture. This axial movement is transmitted to the transmission mechanism of the gear transmission via the outer tube 14 to accomplish a shift operation. At this time, the spherical bush 18 that holds the spherical part 7 of the speed change lever 5 slides along the shaft hole 17 according to its inclination. Therefore, even when the shift lever 5 is tilted to either the left or right, the arm 16 can be moved in parallel by the shift lever 5 without difficulty.

In the second embodiment shown in FIG.
The spherical part 26 provided in the middle is supported by the spherical bearing B, and the bifurcated part 27 of the arm 25a projects downward, and the arm 33 projects from the base 33 of the outer tube 34.
a are connected by a link 36 via pins 37 and 38.

The link 36 as a connecting member corresponds to the arm 16 in the first embodiment. Gear shift lever 25 and base 3
There is virtually no difference from the first embodiment except that the arm 33a of No. 3 is connected to the arm 33a of No. 3 by a link 36, and its operation is also almost the same.
20 is added to the reference numerals of the corresponding parts in the embodiment, and detailed explanation thereof will be omitted.

In this embodiment, the arm 25a of the speed change lever 25 and the arm 33a of the base 33 are connected by a link 36 having a turnbuckle, so that adjustment during assembly can be easily performed. Arm 33a and arm 25a extend to the underside of bracket 21 through holes 21b and 21a of bracket 21,
Since they are connected by the link 36, the overall height of the operating mechanism is reduced.

In the embodiment shown in FIG.
4, and the end of this covering tube 44 is fixed to the end wall of the bracket 2 with a fixing member 45. That is, the cylindrical fixing member 45 passes through the bracket 2 and is fixed by tightening a pair of nuts 46 and lock nuts 47. The cap 13 shown in FIG. 1 is slidably and rotatably supported in the hole 48 of the fixing member 45, and
An end portion of an outer tube 14 is coupled to this base 13. The inner cable 10 is connected to a rod supported by a sleeve on the base 13, similar to the embodiment shown in FIG. The other configurations are the same as those shown in FIG. 1, and may also be configured in the same manner as in FIG. 2.

The rotation of the base 13 accompanying the selection operation of the gear shift lever and the pushing and pulling of the base 13 associated with the shift operation are transmitted to the gear transmission via the outer tube 14. Since the outer tube 14 is inserted through and supported by the covered tube 44, there is no problem in wiring the remote control cable, and even if the attitude of the outer tube 14 changes with the speed change operation and partially comes into contact with a floor panel, etc. It is possible to prevent wear and tear on the outer tube 14.

[Effects of the invention] As described above, the present invention supports the base of the outer tube on the bracket in a sliding and rotatable manner, supports the gear shift lever in a tiltable manner, and shifts the end of the inner cable inserted into the outer tube. Since the lever is extended toward the center of tilting and fixed to the bracket, and the gear shift lever and the base are connected by a connecting member, the outer tube base can be rotated (selected) while the gear shift lever is tilted to the side. Pushing and pulling (shifting) can be performed effortlessly using the rod that connects the inner cable as a guide, resulting in light gear shifting operations.

If the lower end spherical part of the gear shift lever is supported on the spherical bearing of the bracket, and the intermediate spherical part is slidably supported via the spherical bearing in the shaft hole of the end of the arm fixed to the base of the outer tube, the gear shift lever can be easily moved. The vertical displacement of the intermediate sphere due to back and forth tilting is absorbed by the shaft hole, allowing for effortless shift operations.

In addition, if the arm protruding from the lower end of the gear shift lever and the arm of the base are connected by a link, the vertical displacement of the connection part with the link due to the tilting of the gear shift lever will be absorbed by itself, allowing effortless gear shifting operations. Not only that, but the overall height is lower, making it easier to adjust during assembly.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a remote control mechanism for a gear transmission according to a first embodiment of the present invention, and FIG. 2 is a side sectional view of a remote control mechanism for a gear transmission according to a second embodiment of the present invention. FIG. 3 is a side sectional view showing essential parts of a remote control mechanism according to a partially modified embodiment of the present invention. A, B... Spherical bearing, 1, 21... Bracket, 4, 24... Bearing, 5, 25... Gear shift lever, 10, 30... Inner cable, 13, 33
...Case, 14,34... Outer tube, 16
... Arm as a connecting member, 36... Link as a connecting member.

Claims (1)

[Claims for Utility Model Registration] (1) The base of the outer tube is slidably and rotatably supported on the bracket, and the gear lever is tiltably supported, and the end of the inner cable inserted through the outer tube is attached to the gear lever. A remote control mechanism for a gear transmission, characterized in that the gear lever is extended toward the center of tilting and fixed to a bracket, and the gear shift lever and the base are connected by a connecting member. (2) the lower end of the gear shift lever is supported by the spherical bearing, one end of the connecting member is fixed to the base, and the other end is engaged with an intermediate portion of the gear lever via the spherical bearing; A remote control mechanism for a gear transmission as set forth in claim (1) for utility model registration. (3) The remote control mechanism for a gear transmission according to claim (1), wherein the connecting member is a link that connects an arm provided on the base and an arm protruding from a spherical bearing of a speed change lever. .