JPH0727224A - Transmission operating device - Google Patents

Abstract

PURPOSE:To enable the mutual assembling of a housing and a shift cylinder by eliminating dislocation of a shift lever with certainty at a neutral position of the shift cylinder. CONSTITUTION:A plurality of kinds of eccentric pin block 6 have each two pins P1, P2 which are different from each other in transverse dislocation measurements and opposed to each other in their backs. On the other hand, concentric pin blocks which have each two pins are concentrically arranged. The pin block in which the dislocation amount of the two pins corresponds to correction of a dislocation amount of a shift lever is selected among the eccentric pin blocks and the concentric pin blocks. A housing and a shift cylinder are mutually assembled by using the selected pin block.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission operating device in which a housing and a shift cylinder are assembled with their mating surfaces accurately aligned.

[0002]

2. Description of the Related Art In a conventional transmission operating device, when a mating surface of a housing and a mating surface of a shift cylinder are assembled with each other, a pin hole is preliminarily formed at a corresponding position of each mating surface. A common straight pin was inserted into the pin hole to position each other for assembly.

[0003]

The transmission operating device, as shown in FIGS. 12 and 13, has the spline teeth 6 as shown in FIG.
The distal engaging portion 63 of the shift lever 62 to select operation in one of the tooth trace direction, a plurality of shift blocks R, A ₁ to A ₇
When the front end engaging portion 63 is not displaced, the front end engaging portion 63 of the shift lever 62 is fitted into the concave portion 64 of the shift lever 62 as shown in FIG.
Is moved to the adjacent shift block and the select operation is performed smoothly.

However, if the tip engaging portion 63 is assembled with the positional deviation, the tip engaging portion 63 of the shift lever 62 is moved to the shift block in the neutral position of the shift cylinder as shown in FIG. Since the shift block A ₂ side is displaced by entering the concave portions 64 of A ₂ and A ₃ , the tip engaging portion 6 is caused when the select operation is performed.
3 hits the adjacent shift blocks R and A ₄ and cannot be selected.

Therefore, in the conventional transmission operating device, when the pin hole is misaligned, a partner to be combined is searched for and rearranged, or in the worst case where an appropriate partner cannot be found, it is treated as a defective product. There was a problem that I could not get it.

In view of such a conventional problem, the present invention adjusts the neutral position of the shift cylinder so that there is no misalignment even if there is a misalignment, thereby eliminating the misalignment of the shift lever and shifting with the housing. An object of the present invention is to provide a transmission operating device that can be assembled with a cylinder.

[0007]

To achieve the above object, the present invention according to claim 1 provides a housing for supporting a shift shaft equipped with an outer lever and a shift lever, the housing being disposed above a transmission. And a shift cylinder arranged in a direction intersecting with the shift shaft and supporting a striker with which the outer lever engages, the transmission operating device being assembled by aligning a mating surface of the housing and a mating surface of the shift cylinder. , A plurality of types of eccentric pin blocks each having two pins arranged backward with different lateral displacement dimensions, and a concentric pin block having concentrically arranged pins are provided. The pin block corresponding to the correction of the shift amount of the shift lever is a plurality of types of eccentric pin blocks and concentric pin blocks. Selected from among emission block, characterized in that by using the selected the pin block assembled to each other and said housing and the shift cylinder. According to a second aspect of the present invention, a housing supporting an outer lever and a shift shaft equipped with the shift lever and arranged above the transmission, and the outer lever arranged in a direction intersecting with the shift shaft engage with each other. A shift cylinder that supports a striker that is assembled, and a transmission operating device that is assembled by assembling the mating surface of the housing and the mating surface of the shift cylinder in a lateral direction between the mating surface of the housing and the mating surface of the shift cylinder. A plurality of pairs of pin holes, each pair of pin holes having different positional deviation dimensions, are formed, and the positional deviation dimension between the pin holes corresponds to the correction of the positional deviation amount of the shift lever. And insert a common straight pin into the selected pair of pin holes to assemble the housing and the shift cylinder to each other. And it features.

[0008]

According to the present invention, a plurality of types of eccentric pin blocks each having two pins arranged back-to-back with different lateral displacement dimensions, and a concentric pin block having concentrically arranged pins are provided. Is provided, and a pin block in which the positional displacement dimension of the two pins corresponds to the correction of the positional displacement amount of the shift lever is selected from a plurality of types of eccentric pin blocks and concentric pin blocks, and the selected pin block is used. By assembling the housing and the shift cylinder with each other, the housing and the shift cylinder can be assembled with each other without the displacement of the shift lever. Further, according to the present invention as set forth in claim 2, a plurality of pairs of pin holes are formed on the mating surface of the housing and the mating surface of the shift cylinder, each pair of pin holes having different lateral displacement dimensions. , Select a pair of pin holes whose positional deviation between the pin holes corresponds to the correction of the positional deviation of the shift lever, insert a common straight pin into the selected pair of pin holes, and insert the housing and shift cylinder. By assembling the shift lever and the shift cylinder with each other, it is possible to assemble the shift cylinder with respect to the neutral position of the housing and the shift cylinder.

[0009]

The first embodiment of the present invention will be described in detail with reference to the drawings. The transmission operating device according to this embodiment includes a housing 1 (see FIGS. 1 to 4) and a shift cylinder 3 (see FIG. 5) arranged in a direction orthogonal to a shift shaft 2 supported by the housing 1. And the joint portion 4 of the housing 1 and the joint portion 5 of the shift cylinder 3 are assembled to each other. Then, the transmission operating device includes a plurality of types of eccentric pin blocks 6 (see FIG. 6 and FIG. 7) each having two pins arranged backward with different lateral displacement dimensions, and pins arranged concentrically. And a concentric pin block 8 (see FIG. 8) having
From these, a pin block is selected in which the displacement size of the two pins corresponds to the displacement size of the shift lever 10, and the selected pin block is used to connect the joint portion 4 of the housing 1 and the shift cylinder. 3 and the joint portion 5 are assembled together.

As shown in FIGS. 1 to 3, the housing 1 is integrally provided with a joint portion 4 at one end side, and circular holes 12 are formed at four positions on a mating surface 11 formed on the joint portion 4 to form the joint portion 4. Rectangular grooves 13, 13 are provided on both sides of the surface 11 at an intermediate position in the vertical direction, and a pin hole H ₀ is formed at the center of each rectangular groove 13.
And the shift shaft 2 is rotatably supported. The shift shaft 2 has an outer lever 17 fixed to one end, spline teeth 2a provided at an intermediate position in the axial direction, and a fitting portion 19 of the shift lever 10 having a spline hole 19a meshing with the spline tooth 2a on the outer periphery. It is slidably fitted. The outer lever 17 is provided with a spherical hole 17a at a position near the tip, and the spherical hole 17a is formed.
The spherical tip end portion 20a of the striker 20 is fitted into and is engaged with the striker 20 in a rotatable state around the center of the spherical hole 17a.

Further, as shown in FIG. 4, the housing 1 is provided with an opening 22 on the back side of the position corresponding to the shift lever 10, and a vertically rotatable body is provided between the opening 22 and the shift shaft 2. A shaft 24 is provided. A first select lever 26 that rotates by the operation of a select cylinder (not shown) is attached to the upper portion of the vertical axis 24, and a tip engaging portion 27a is attached to the side surface of the shift lever 10 at the lower end of the vertical axis 24. A second select lever 27 for matching is attached.
Then, the second select lever 27 rotates with the rotation of the first select lever 26, and the tip engaging portion 27 a moves the shift lever 10 along the axial direction of the shift shaft 2 and moves downward. Fig. 1 for the gearbox being placed
A shift block similar to that shown in FIG.
The select operation is performed by engaging the front end engaging portion 10a of 0. The oil damper 2 is provided on the other end of the housing 1.
8 is provided.

The shift cylinder 3 is, as shown in FIG.
A joint portion 5 is integrally provided at an intermediate position in the axial direction, and long holes 32 are formed at four positions of a mating surface 31 formed on the joint portion 5,
Pin holes H ₀ , H ₀ are formed at positions corresponding to the pin holes H ₀ , H ₀ of the housing 1, and a large diameter piston 37 and a small diameter piston 38 fixed to one end and an intermediate position of the piston rod 36 are slid. An intermediate stopper 4 which is freely accommodated and which is located between the end stopper 40 on one end side and the large diameter piston 37 and the small diameter piston 38 and through which the piston rod 36 penetrates.
1, and the piston rod 3 at a position near the joint 5
An auxiliary stopper 42, through which 6 penetrates, is fixed to the inner peripheral surface. A circular hole 20b on the base side of the striker 20 is loosely fitted to the outer periphery of the portion of the piston rod 36 in the joint portion 5 so that the striker 20 is restrained from moving in the axial direction with respect to the piston rod 36 It is designed to move with you.

The shift cylinder 3 has a large diameter chamber 44 between the end stopper 40 and the large diameter piston 37, and a small diameter chamber 45 between the intermediate stopper 41 and the small diameter piston 38.
When compressed air is simultaneously sent to the same air source from the same air source to the neutral position when the large-diameter piston 37 hits the intermediate stopper 41 due to the difference in pressure receiving area, and when there is no displacement of each part at this position, the shift lever 10 is moved vertically. It is designed to be in a neutral state with a posture along the direction.

As shown in FIGS. 6 and 7, the eccentric pin block 6 has two pins P ₁ and P ₁ which are arranged back to back with their lateral positions displaced with respect to the rectangular parallelepiped portion 7 just fitted in the rectangular groove 13. ₂ is provided, and a plurality of types in which the _two lateral positions of the pins P ₁ and P ₂ are different from each other are provided. Further, as shown in FIG. 8, the concentric pin block 8 has two concentric pins P ₀ and P ₀ arranged back to back in a rectangular parallelepiped portion 9 just fitted in a rectangular groove 13 (see FIGS. 2 and 3). Have.

In the neutral position of the shift cylinder 3, when the position of the shift lever 10 is deviated from the neutral position, the positional deviation dimension of the two pins corresponds to the correction of the positional deviation amount of the shift lever 10. The block includes a plurality of types of eccentric pin blocks 6 and concentric pin blocks 8
A pin block selected from the inside is used.
The pin block is selected according to the position shift amount E of the shift lever 10, the length L ₀ of the outer lever 17 and the shift lever 10.
Value R multiplied by the ratio with the length L _{1 of} R, that is, R = E ·
With reference to L ₀ / L ₁ , the position displacement dimension of the two pins is closer to R. Since the position shift amount E of the shift lever 10 is about 1 mm, it is usually sufficient to provide several types of eccentric pin blocks.

Using the above pin block, the first aspect of the present invention
A method of mutually assembling the housing and the shift cylinder of the transmission operating device according to the embodiment will be described. (1) Insert the pins P ₀ and P ₀ of the concentric bin block 8 shown in FIG. 8 into the pin hole H ₀ of the housing 1 and the pin hole H ₀ of the shift cylinder 3 to connect the shift cylinder 3 and the housing 1 to each other. Circular holes 12 and corresponding long holes 3
Temporarily assemble each other with the bolt inserted in 2 and the nut that is screwed into it. (2) Next, compressed air is introduced into the large diameter chamber 44 and the small diameter chamber 45 of the shift cylinder 3. (3) Due to the difference in pressure receiving area, the large-diameter piston 37 contacts the intermediate stopper 41, and the shift cylinder 3 is in the neutral position. (4) If both the shift cylinder 3 and the shift lever 10 simultaneously obtain neutrality at this point, the result is acceptable, and the shift cylinder 3 and the housing 1 are fastened with bolts and nuts at a predetermined torque, so that they can be assembled together. finish.

If there is a positional deviation between the shift cylinder 3 and the shift lever 10 at the stage of temporary assembly, the positional deviation is adjusted as follows. (1) The position shift amount E of the shift lever 10 from the neutral state at the neutral position of the shift cylinder 3 is measured by a measuring device. This positional deviation amount E is the positional deviation E ₁ between the shift cylinder 3 and the striker 20, and the shift shaft 2
In addition, the positional deviation E ₂ when the outer lever 17 is fixed by welding, the gear cutting error E ₃ of the spline teeth 2a, and the like are combined. (2) Remove the concentric pin block 8 to remove the two pins P
_The eccentric pin block 6 whose displacement between ₁ and P ₂ corresponds to the displacement of the shift lever 10 is selected, and one pin P ₁ of the selected eccentric pin block 6 is inserted into the pin hole H ₀ of the housing 1. And the rectangular parallelepiped part 7 into the rectangular groove 13
Fit in. (3) With the compressed air introduced into the large-diameter chamber 44 and the small-diameter chamber 45, the other pin P ₂ and the pin hole H ₀ of the joint portion 5 of the shift cylinder 3 are aligned to shift the shift lever 10 in position. The housing 1 and the shift cylinder 3 are assembled to each other in a state in which they have been corrected. Shift cylinder 3
Since the long hole 32 is provided on the side, it is possible to move the position shift. (4) The housing 1 and the shift cylinder 3 are fastened with bolts and nuts at a predetermined torque, and the mutual assembly is completed. The transmission operating device that has been assembled is assembled to a transmission (not shown). The striker 20 is rotated about the piston rod 36 to adjust the positional displacement between the housing 1 and the shift cylinder 3 in the vertical direction. To adjust this vertical displacement,
It is also possible to fix the striker 20 to the piston rod 36 and replace it with the spherical hole 17a of the outer lever 17 to make it a vertically elongated hole.

FIG. 9 is a side view showing a housing of a transmission operating device according to a second embodiment of the present invention, and FIG. 10 is a cutaway side view showing a shift cylinder. In the case of this second embodiment, the housing 1 has the width of the upper half of the joint portion 4 as the first width.
The reference pin holes H ₀ and H ₀ are formed in the mating surface 11 at substantially the same positions as the pin holes H ₀ in the first embodiment, and each reference pin hole H _{0 is formed.} point centered vertically centered on parallel inclined straight line with each other through the are pierced pin holes H ₁ to H ₆ on both sides at substantially equal intervals by the three is different from the first embodiment, Since the other points are the same as those of the first embodiment, the same parts are designated by the same reference numerals and the duplicate description of those parts will be omitted.

In the shift cylinder 3, the mating surface 31 of the joint portion 5 has a shape corresponding to the mating surface 11 of the housing 1,
The reference pin holes H ₀ , H ₀ of the housing 1 are formed on the mating surface 31.
The reference pin holes H ₀ and H ₀ corresponding to the above are opened, and three pin holes H _{1 to} H _{6 on} the mating surface 11 of the housing 1 are vertically arranged along the vertical line passing through the center of each reference pin hole H ₀ . The present embodiment is different from the first embodiment in that pin holes H _{1 to} H ₆ are formed on both sides at intervals corresponding to the vertical distance, and the other points are the same as those in the first embodiment, and therefore are the same. The same reference numerals are given and the duplicate description of those parts is omitted.

The transmission operating device according to the second embodiment is assembled in the following manner using the common straight pin 47 shown in FIG. (1) The straight bins 47 are inserted into the corresponding reference pin holes H ₀ and H ₀ of the housing 1 and the shift cylinder 3 to connect the housing 1 and the shift cylinder 3 to the circular holes 12 at four locations and the corresponding long holes 32. Temporarily assemble with the bolt inserted into and the nut that is screwed into it. (2) Large diameter chamber 44 and small diameter chamber 45 of shift cylinder 3
Then, compressed air is introduced. (3) Due to the difference in the pressure receiving area, the large-diameter piston 37 abuts on the intermediate stopper 41, whereby the shift cylinder 3
Becomes the neutral position. (4) If both the shift cylinder 3 and the shift lever 10 simultaneously become neutral at this point, the result is acceptable, and the housing 1 and the shift cylinder 3 are fastened with bolts and nuts at a predetermined torque and assembled together. Ends.

If there is a positional deviation of the shift lever 10 at the stage of temporary assembly, the deviation is adjusted as follows. (1) The position shift amount E of the shift lever 10 from the neutral state at the neutral position of the shift cylinder 3 is measured by a measuring device. (2) The straight pin 47 is pulled out, and the lateral displacement of the mating surface 11 of the housing 1 with respect to the reference pin hole H ₀ corresponds to the correction of the displacement amount of the shift lever 10. For example, the pin hole H ₁ is aligned with the housing 1. selected from the surface 11 side, the selection and pin holes H ₁ and this to match the position of the pin hole H ₁ of the mating surface 31 of the shift cylinder 3 corresponding, both of these pin holes H _1, H ₁ straight The pin 47 is inserted to correct the positional deviation, and the housing 1 and the shift cylinder 3 are assembled to each other. (3) The housing 1 and the shift cylinder 3 are fastened with bolts and nuts at a predetermined torque, and the mutual assembly is completed.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the invention. For example, the rectangular groove 13 may be provided on the mating surface 31 side of the shift cylinder 3, the pin hole along the inclined straight line is opened on the mating surface 31 side of the shift cylinder 3, and the pin hole along the vertical line is on the housing 1 side. It is also possible to open on the mating surface 11 side.

[0023]

According to the present invention as set forth in claim 1, a plurality of types of eccentric pin blocks each having two pins arranged back to back with different lateral displacement dimensions, and a concentric pin having a concentric arrangement. A pin block is provided, and a pin block in which the positional displacement dimension of the two pins corresponds to the correction of the positional displacement amount of the shift lever is selected from a plurality of types of eccentric pin blocks and concentric pin blocks, and the selected pin block is selected. By assembling the housing and the shift cylinder with each other by using, it is possible to surely eliminate the positional shift of the shift lever in the neutral state and to perform the mutual assembly. Further, according to the present invention as set forth in claim 2, a plurality of pairs of pin holes are formed in the mating surface of the housing and the mating surface of the shift cylinder, each pair of pin holes having different lateral displacement dimensions. Select a pair of pin holes in which the positional deviation between the pin holes corresponds to the correction of the positional deviation of the shift lever, and insert a common straight pin into the selected pair of pin holes to form a housing. Since the shift cylinder and the shift cylinder are assembled, it is possible to surely eliminate the positional deviation of the shift lever in the neutral state and to assemble the shift cylinder with each other.

[Brief description of drawings]

FIG. 1 is a front sectional view showing a main part of a transmission operating device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a main part of a housing of the transmission operating device according to the first embodiment of the present invention.

FIG. 3 is a side view showing a main part of the housing according to the first embodiment of the present invention.

FIG. 4 is a view on arrow AA of FIG.

FIG. 5 is a cutaway side view showing a shift cylinder of the transmission operating device according to the first embodiment of the present invention.

FIG. 6 is a plan view showing an eccentric pin block used in the transmission operating device according to the first embodiment of the present invention.

FIG. 7 is a view taken along the line BB of FIG.

FIG. 8 is a perspective view showing a concentric pin block used in the transmission operating device according to the first embodiment of the present invention.

FIG. 9 is a side view showing a main part of a housing of a transmission operating device according to a second embodiment of the present invention.

FIG. 10 is a cutaway side view showing a shift cylinder of a transmission operating device according to a second embodiment of the present invention.

FIG. 11 is a perspective view showing a concentric pin used in the transmission operating device according to the second embodiment of the present invention.

FIG. 12 is a perspective view for explaining problems of a conventional transmission operating device.

FIG. 13 is a perspective view for explaining problems of the conventional transmission operating device.

FIG. 14 is a plan view for explaining problems of the conventional transmission operating device.

FIG. 15 is a plan view for explaining problems of the conventional transmission operating device.

[Explanation of symbols]

1 housing 2 shift shaft 3 shift cylinder 4 joint 5 joint 6 eccentric pin block 7 rectangular parallelepiped 8 concentric pin block 9 rectangular parallelepiped 10 shift lever 10a tip engaging part 11 mating surface 13 rectangular groove 17 outer lever 17a spherical hole 20 striker 20a Sphere tip 31 Matching surface 32 Long hole P ₀ Concentric pin block pin P ₁ , P ₂ Eccentric pin block pin H ₀ Reference pin hole H _{1 to} H ₆ pin hole

Claims (2)

[Claims] 1. A housing for supporting a shift shaft equipped with an outer lever and a shift lever and arranged above a transmission, and a striker arranged in a direction intersecting with the shift shaft and engaged with the outer lever. A transmission operating device comprising a shift cylinder, wherein the mating surface of the housing and the mating surface of the shift cylinder are assembled to each other, and a plurality of pins each having two pins arranged rearward with different lateral displacement dimensions. A plurality of types of eccentric pin blocks are provided, in which a plurality of types of eccentric pin blocks and a concentric pin block having concentric pins are provided, and the position displacement dimension of the two pins corresponds to the correction of the displacement amount of the shift lever. Select from a pin block and a concentric pin block, and use the selected pin block And a shift cylinder are assembled to each other. 2. A housing that supports a shift shaft equipped with an outer lever and a shift lever and that is disposed above a transmission, and a striker that is disposed in a direction intersecting with the shift shaft and that engages with the outer lever. In a transmission operating device including a shift cylinder and assembled by aligning a mating surface of the housing and a mating surface of the shift cylinder, a lateral misalignment dimension is set between the mating surface of the housing and the mating surface of the shift cylinder. Plural pairs of pin holes each having a different pair of pin holes are bored, and a pair of pin holes whose position deviation dimension between the pin holes corresponds to correction of the position deviation amount of the shift lever is selected. A common straight pin is inserted into the selected pair of pin holes so that the housing and the shift cylinder are assembled to each other. Speed control device.