JP3023137U - Linear motion / rotational motion conversion lever member - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To reduce the manufacturing cost, it is not necessary to manufacture another member and overlap and weld the same in order to make a portion connected to a rotating shaft into a double plate shape. A lever member 14 is made of a metal plate, and includes a first connecting portion 21 and a second connecting portion 22 located at both ends, and an arm 23 connecting the connecting portions 21 and 22.
The second connecting portion 22 has a double plate shape in which the shaft connecting plate portion 25 and the stacking plate portion 26 overlap each other by folding back the end portion of the metal plate. Then, the fitting hole 27 formed in the shaft connecting plate portion 25 is fitted in the small diameter portion 18 of the control shaft 13, and the detent hole 28 formed in the stacking plate portion 26 is fitted in the detent portion of the control shaft 13. By fitting to 20,
The lever member 14 rotates together with the control shaft 13.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a lever member for converting linear motion / rotational motion, and more particularly to a lever member having an improved configuration of a portion connected to a rotation shaft.

[0002]

[Problems to be solved by the device]

 For example, in an automatic transmission for a vehicle, the range can be switched according to the position of the shift lever.

That is, a linearly movable control wire is connected to the shift lever, and a control shaft that rotates in accordance with the linear movement of the control wire is connected to the control wire via a lever member. . As a result, when the control wire linearly moves in response to the operation of the shift lever, the lever member rotates the control shaft, and as a result, the rotation shaft rotates by an amount corresponding to the operation amount of the shift lever. Then, the cam attached to the rotating shaft operates the actuator according to the amount of rotation, whereby the automatic transmission is switched to the range corresponding to the position of the shift lever.

Conventionally, as a lever member, for example, one shown in FIG. 6 has been used. This lever member is made of a metal plate and is composed of a shaft connecting portion 1 to which the control shaft is connected, a wire connecting portion 2 to which the control wire is connected, and an arm 3 that connects the both connecting portions 1 and 2. Has been done. A substantially rectangular hole portion 4 is formed in the wire connecting portion 2, and the end portion of the control wire is connected to the hole portion 4 via a connecting tool. A circular plate 5 made of metal is superposed on the shaft connecting portion 1 and welded to form a double plate. A circular shaft hole 6 is formed in the shaft connecting portion 1 so that the end of the control shaft can be inserted, and the circular plate 5 has a non-circular shape (substantially rectangular in FIG. 6). A detent hole 7 of a shape) is formed so that a detent protrusion protruding from the end surface of the control shaft can be inserted.

Here, the shaft hole 6 is for positioning the lever member with respect to the rotation shaft, and the detent hole 7 prevents the lever member from rotating with respect to the rotation shaft. It is a good thing.

In the case of the above configuration, when forming the shaft connecting portion 1, the circular plate 5 has to be created as a separate member and overlapped with the shaft connecting portion 1 and welded, which increases the manufacturing cost. was there.

The present invention has been made in view of the above circumstances, and an object thereof is to manufacture another member and weld it by superimposing it in order to make a portion connected to the rotating shaft into a double plate shape. It is not necessary to provide a lever member for linear motion / rotation conversion that reduces manufacturing costs.

[0008]

[Means for Solving the Problems]

 The linear motion / rotational motion converting lever member of the present invention is formed of a metal plate, and has one end connected to a member that moves linearly and the other end connected to a rotation shaft, so that the linear movement is performed. A linear motion of the member is converted into a rotary motion of the rotary shaft, or a rotary motion of the rotary shaft is converted into a linear motion of the linear moving member, wherein the rotary motion of the other end is performed. For the connection to the shaft, a circular fitting hole and a non-circular stopper hole are provided for the rotating shaft in which a non-circular stopper portion is projectingly provided at the tip of the circular section through a step portion. , The fitting hole and the rotation stop hole are fitted to the tip end portion of the rotation shaft and the rotation stop portion, and the nut is screwed to the male screw portion formed on the rotation stop portion to perform the rotation. The other end fixed to the shaft is formed into a double plate by folding the end of the metal plate, one of which is The fitting hole is formed in the plate portion, the detent hole is formed in the other plate portion, and the other plate portion in which the detent hole is formed is rotated with the nut by the nut. It is characterized in that it is configured to be tightened between the shaft and the stepped portion (Claim 1).

In this case, the linear movement member is a control wire that linearly moves in association with the operation of a shift lever for an automatic transmission of a vehicle, and the above-mentioned rotating shaft has an automatic transmission that shifts the shift lever of the shift lever. The linear movement of the control wire is converted into the rotational movement of the control shaft by using the control shaft that transmits the operation displacement of the shift lever to the automatic transmission side in order to set the range according to the position. This can be done (Claim 2).

[0010]

[Embodiment of device]

 Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. In addition, this embodiment is applied to a mechanism portion for transmitting the shift of the shift lever to the control shaft in order to set the range of the automatic transmission for vehicle to the range corresponding to the position of the shift lever.

First, FIG. 3 shows a structure of a portion related to the present embodiment in an automatic transmission for a vehicle, in which a control wire 12 connected to a shift lever 11 and a control shaft 13 are linearly moved / rotated. It is connected to a lever member 14 for motion conversion.

The control wire 12 is configured such that an inner wire 15 a is inserted into the tube 15 b so as to be linearly movable according to the operation of the shift lever 11. Therefore, the inner wire 15a corresponds to the linear movement member in the present invention. The control shaft 13, which is a rotating shaft, is rotatably supported by bearings 16 and 16. When the control shaft 13 is rotated, an actuator (not shown) is actuated so that the automatic transmission responds to the position of the shift lever 11. It is set to a different range.

FIG. 1 is an enlarged view showing a part of the lever member 14, the control wire 12 and the control shaft 13. In this case, the connector 17 fixed to the tip of the inner wire 15a is provided with a protrusion 17a having a rectangular cross section in a direction perpendicular to the axial direction, and the male screw portion 17b is protruded from the end face of the protrusion 17a. It is set up. Further, an end portion of the control shaft 13 is a small diameter portion 18, and a detent portion 20 is projectingly provided at a tip end portion of the small diameter portion 18 via a step portion 19. The rotation stopping portion 20 is initially formed to have a circular cross section with a diameter smaller than that of the small diameter portion 18, and is formed into a non-circular shape having a substantially oval cross section by cutting both sides thereof into a flat shape. In this case, both sides of the small-diameter portion 18 are cut so as to be planes continuous with the planes on both sides of the rotation-stopping portion 20 and are formed into a substantially oval cross section. A male screw portion 20a is formed on the portion of the rotation stopping portion 20 left as the circumferential surface.

On the other hand, the lever member 14 is made of a metal plate and has a first connecting portion 21 located at one end side, a second connecting portion 22 located at the other end side, and the first and second connecting portions. It is composed of an arm 23 that connects the parts 21 and 22. In this case, the lever member 14 is bent in a crank shape so that the first and second connecting portions 21 and 22 are located at different levels.

The first connecting portion 21 is formed with a hole 24 having the same shape as the protrusion 17a of the connecting tool 17 fixed to the tip of the inner wire 15a. The second connecting portion 22 is formed in a double plate shape by folding back the end portion of the metal plate. Here, one plate part connected to the arm 23 of the first plate-shaped connecting part 22 having a double plate shape is defined as a shaft connecting plate part 25, and the other plate part superposed on the shaft connecting plate part 25 is a laminated plate. As shown in FIG. 2, a circular fitting hole 27 having substantially the same diameter as the small diameter portion 18 of the control shaft 13 is formed in the shaft connecting plate portion 25, and the overlapping plate portion 26 is formed. A detent hole 28 having the same shape as the cross section of the detent portion 20 is formed in the.

Here, a procedure for forming the second connecting portion 22 will be described. FIG. 2 is a development view of the second connecting portion 22 side of both end portions of the metal plate forming the lever member 14, in which the portion forming the shaft connecting plate portion 25 and the overlapping plate portion 26 are formed. A rectangular hole 30 extending over both the shaft connecting plate portion 25 and the stacking plate portion 26 is formed in the bent portion 29 that is a boundary portion with the portion, and V-cut grooves 31, 31 are formed at the bending positions. Has been done.

At this time, the centers of the fitting hole 27 and the rotation stopping hole 28 are located symmetrically with respect to the straight line passing through the V-cut grooves 31, 31. Then, in this state, the weight plate portion 26 is bent in the bent portion 29 along the V-cut grooves 31, 31 in the direction of arrow A. As a result, the detent hole 28 and the fitting hole 27 are aligned with each other, and the stacking plate portion 26 is stacked so as to make surface contact with the shaft connecting plate portion 25. Here, the hole 30 is provided for the purpose of reducing the bending force at the time of bending at the bending portion 29, and the V-cut groove 31 reduces the bending force and the bending position of the bending portion 29 is displaced. It is provided in order to prevent.

In the above structure, in order to connect the control wire 12 to the first connecting portion 21, as shown in FIG. 3, the protrusion 17 a of the connecting tool 17 is fitted from one side of the hole 24, The plain washer 32 is fitted into the male screw portion 17b protruding to the other side, and the nut 33 is tightened and fixed by a tightening member such as a spanner.

On the other hand, in order to connect the second connecting portion 22 to the control shaft 13, as shown in FIG. 4, the back surface of the stacking plate portion 26 (the contact surface with the shaft connecting plate portion 25) is the control shaft. The control shaft 13 is fitted into the rotation stopping portion 20 and the tip end of the small diameter portion 18 so that the fitting hole 27 precedes until it hits the stepped portion 19 of 13. Then, the fitting hole 27 is fitted into the small-diameter portion 18 and the back surface of the overlapping plate portion 26 abuts against the step portion 19, so that the lever member 14 is positioned at the regular mounting position with respect to the control shaft 13. As determined, the detent hole 28 is fitted into the detent portion 20 so that the lever member 14 is in a detent state with respect to the control shaft 13 and rotates integrally with the control shaft 13. Done

After the lever member 14 is fitted to the control shaft 13 as described above, the plain washer 34 is fitted to the tip end portion of the rotation stopping portion 20 protruding from the rotation preventing hole 28, and the nut 20 is attached to the male portion 20a. Screw 35 and tighten with a spanner or the like. As a result, the weight plate portion 26 is tightened between the nut 35 and the step portion 19 of the control shaft 13, so that the lever member 14 is fixed to the control shaft 13.

When the shift lever 11 is operated in the direction of arrow B, the inner wire 15a in the tube 15b moves linearly in the direction of arrow C, so that the first connecting portion 21 of the lever member 14 moves in the direction of arrow D. Is applied, the control shaft 13 rotates in the arrow E direction together with the lever member 14. The range of the automatic transmission is switched according to the position of the shift lever by the rotation of the control shaft 13 as described above.

On the other hand, when the shift lever 11 is operated in the direction opposite to the arrow B, the inner wire 15a linearly moves in the direction opposite to the arrow C, and accordingly, the first connecting portion 21 of the lever member 14 is moved in the direction opposite to the arrow D. Is applied, the control shaft 13 rotates together with the lever member 14 in the opposite arrow D direction. Therefore, the lever member 14 converts the linear movement of the control wire 12 into the rotational movement of the control shaft 13.

As described above, in this embodiment, in the lever member 14, the second connecting portion 22 is formed by bending the bent portion 29 and overlapping the overlapping plate portion 26 with the shaft connecting plate portion 25. Therefore, unlike the prior art, there is no need to overlap and weld the circular plate 5 that is a member different from the shaft connecting portion 1 to the shaft connecting portion 1 (see FIG. 6), and the manufacturing cost is reduced. be able to.

FIG. 4 shows a second embodiment of the present invention. The difference from the first embodiment is that the second connecting portion 40 is provided between the shaft connecting plate portion 41 and the stacking plate portion 42. That is, it is formed by bending so as to have a gap S. Even in this case, the same effect as that of the first embodiment can be obtained.

The present invention is not limited to the embodiments described above and shown in the drawings. For example, the linearly moving member and the rotating shaft are other than the control wire and the control shaft of the vehicle transmission. It may also be applicable to a case where a linear motion member is connected to a rotary shaft for rotary motion to convert the linear motion into a rotary motion, or when the rotary motion is converted into a linear motion. It may be appropriately modified and implemented within a range not departing from the gist.

[0026]

[Effect of device]

 As described above, according to the linear motion / rotational motion converting lever member of the present invention, the one end fixed to the rotation shaft is formed in a double plate shape by folding back the end of the metal plate. Therefore, it is possible to reduce the manufacturing cost without the trouble of manufacturing another member, overlapping and welding them.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part showing a first embodiment of the present invention.

FIG. 2 is a development view of a second connecting portion portion.

FIG. 3 is an exploded perspective view showing a connecting structure of an automatic transmission for a vehicle.

FIG. 4 is a sectional view showing a state in which a second connecting portion is fitted to a control shaft.

5 is a view equivalent to FIG. 1 showing a second embodiment of the present invention.

FIG. 6 is a view corresponding to FIG. 1 showing a conventional example.

[Explanation of symbols]

11 is a shift lever, 13 is a control shaft (rotating shaft), 14 is a lever member (linear motion / rotating motion converting lever member), and 15a is an inner wire (linear moving member,
Control wire), 19 is a step, 20 is a rotation stop,
20a is a male screw portion, 21 is a first connecting portion (one end portion), 2
2, 40 are second connecting portions (other end portions), 25 and 41 are shaft connecting plate portions (one plate portion), 26 and 42 are overlapping plate portions (the other plate portion), 27 is a fitting hole, 28 is a rotation stop hole and 35 is a nut.

Claims (2)

[Scope of utility model registration request] 1. A metal plate, one end of which is connected to a member that moves linearly and the other end of which is connected to a rotating shaft, so that the linear movement of the linear moving member is rotated by the rotating shaft. A lever member for converting into a dynamic motion or converting a rotary motion of the rotary shaft into a linear motion of the linear moving member, wherein the other end is connected to the rotary shaft by a tip having a circular cross section. A circular fitting hole and a non-circular detent hole are provided on the rotating shaft having a non-circular detent section having a non-circular cross-section projecting through a step portion, and the fitting hole and the detent hole are formed. A lever member that is fitted to a tip end portion and a rotation stopping portion of the rotation shaft and by screwing a nut to a male screw portion formed on the rotation prevention portion, the other end portion being fixed to the rotation shaft. Is formed into a double plate shape by folding back the end of the metal plate, and one of the plate parts is fitted with the While forming a joint hole, the rotation stop hole is formed in the other plate portion, and the other plate portion in which the rotation stop hole is formed is formed by the nut and the step portion of the rotation shaft. A linear motion / rotational motion conversion lever member characterized in that it is tightened between them. 2. The linear movement member is a control wire that linearly moves in association with the operation of a shift lever for an automatic transmission of a vehicle, and the rotating shaft moves the automatic transmission to a shift position of the shift lever. 2. The linear motion / rotational motion converting lever member according to claim 1, wherein the linear motion / rotational motion converting lever member is a control shaft for transmitting an operation displacement of the shift lever to the automatic transmission side in order to set a range corresponding thereto.