JP3067542B2 - Gear device for transmission - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission gear device for branching and outputting the rotation of a transmission to two driven units such as a digital operation recorder and an analog odometer.

[0002]

2. Description of the Related Art Conventionally, the rotation of a transmission is taken out by an appropriate means and recorded as various data necessary for vehicle operation.

[0003] For example, a vehicle instrument called a combination meter includes a pointer-type instrument such as a speedometer, a tachometer, a fuel gauge, a water temperature gauge, and the like. A warning light that lights up to warn when there is an abnormality and an analog odometer or trip meter that integrates and indicates the traveling distance of the vehicle are provided. This analog odometer indicates the total distance traveled since the vehicle was manufactured.In general, the number of kilometers indicated by the number wheel provided on the back of the dial face of the speedometer indicates the display window provided on the dial. It is configured to be displayed through.

[0004] Further, the traveling speed, traveling distance,
An analog operation recorder equipped with an analog odometer is known as a device for recording operation data such as a driver's work content. Some vehicles are provided with a so-called digital operation recorder in which a pulse signal is sampled at a predetermined cycle and is written as vehicle speed data in a semiconductor memory to record operation data.

FIG. 5 shows a signal transmission system when a digital operation recorder is used together with an analog operation recorder and / or a combination meter.

That is, the transmission 400 is linked to the transmission gear device 100 via the intermediate cable 401, and the digital operation recorder 200 is electrically connected to the rotation sensor 201 attached to the transmission gear device 100. In addition, the analog odometer 300 is linked to the transmission gear device 100 via the intermediate cable 301, and the rotation of the transmission 400 is branched by the transmission gear device 100 and output to the recorders 200 and 300. In 200 and 300, the running distance is integrated and recorded. At this time, the rotation sensor 201
Is attached directly to the transmission gear device 100 as shown in FIG. 5, or is attached to the transmission gear device 100 via an intermediate cable (not shown).

At this time, the transmission gear device 100 has one end 101a as shown in FIGS.
Is a digital operation recorder 20 via a rotation sensor 201.
0 and the other end 101b is an intermediate cable 40.
1 and a driven shaft 102 whose one end 102a is linked to an analog odometer 300 via an intermediate cable 301.
And the casings 106, 10 in an interlocking state via a driving gear 103 integrally linked to the shafts 101 and 102, and an intermediate gear 105 meshing with the driven gear 104, respectively.
It is rotatably arranged in parallel between 7 and has the entire configuration. The driving shaft 101 has a link hole 10 with the rotation sensor 201.
1c is provided so as to be open at one end 101a, and a slit 101d for connection with the intermediate cable 401 is provided at the other end 101b. The driven shaft 102 has a connection hole 102b for connecting to the intermediate cable 301 at one end 10b.
2a is provided to be open.

In FIG. 6, reference numeral 108 denotes an intermediate shaft rotatably supporting the intermediate gear 105, reference numeral 109 denotes a washer interposed between the intermediate gear 105 and the casing 107, and reference numeral 110 denotes a bearing. .

In the transmission gear device 100 configured as described above, when the vehicle moves forward, the transmission 400 rotates forward, the forward rotation is transmitted to the driving shaft 101 via the intermediate cable 401, and the intermediate gear 105 , The driving shaft 101 and the driven shaft 102 rotate forward. The forward rotation of the driving shaft 101 is converted into a pulse signal by the rotation sensor 201 and output to the digital operation recorder 200, and the forward rotation of the driven shaft 102 is output to the analog odometer 300 via the intermediate cable 301. , Digital operation recorder 2
00 and the analog odometer 300 perform predetermined operation records, respectively.

On the other hand, when the vehicle reverses, the transmission 400 reverses, and this reverse rotation
1 and to the driven shaft 102 via the intermediate gear 105,
1 and the driven shaft 102 are reversed. The reverse rotation of the transmission 400 is performed by the digital operation recorder 2 via the rotation sensor 201 and the intermediate cable 301 respectively linked to the driving shaft 101 and the driven shaft 102 due to the reverse rotation.
00 and the analog odometer 300,
The digital operation recorder 200 is configured to stop subtraction of the traveling distance by the back lamp lighting signal S of the vehicle at the same time as the start of the back, while the analog odometer 3 is stopped.
In the case of 00, until the reverse rotation prevention counter operates, the vehicle reverses a certain distance, subtracts the traveling distance, and then slips to prevent reverse rotation.

[0011]

As described above, the conventional transmission gear device 100 itself does not have a reverse rotation preventing function. Therefore, the reverse rotation of the transmission 400 is directly transmitted to the digital operation recorder 200 and the analog odometer 300. The digital operation recorder 200 stops the subtraction of the mileage.
And an analog odometer 300 that subtracts a certain distance from the analog odometer 300.

In addition, the analog odometer 300 has a different running distance to be subtracted when the type is different, and the subtracted traveling distance increases depending on the type. There is also a problem that the error of the traveling distance increases.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide a driven shaft corresponding to a driven shaft among two driven portions from which rotation of a transmission is branched and output. To provide a transmission gear device that can prevent reverse output to a driven portion and further prevent the occurrence of an error between the two driven portions by preventing the reverse output described above. It is in.

[0014]

According to a first aspect of the present invention, a driving shaft and a driven shaft are rotatably supported in a casing, and each of the driving shaft and the driven shaft is connected to each of the shafts. The gears are interlocked via an intermediate gear meshing with a driving gear and a driven gear that cooperate with each other, and the rotation of the transmission is branched via the two shafts to two driven portions provided respectively corresponding to the two shafts. In the transmission gear device, the driven shaft is linked to the driven gear via a forward rotation locking one-way clutch, and is supported by the casing via a reverse rotation locking one-way clutch. Features.

According to a second aspect of the present invention, there is provided the transmission gear device according to the first aspect, wherein the two driven portions are provided corresponding to the driving shaft, and the subtraction is stopped by a back signal of the vehicle. And an analog odometer provided in correspondence with the driven shaft.

According to a third aspect of the present invention, there is provided a transmission gear device according to the first or second aspect,
The forward rotation locking one-way clutch is integrated with the driven gear side, and the reverse rotation locking one-way clutch is integrated with the casing side.

According to a fourth aspect of the present invention, there is provided the transmission gear device according to the third aspect, wherein the one-way clutches for normal rotation lock and reverse rotation lock are respectively press-fitted into the driven gear and the casing. A cam surface formed in a circumferential direction so as to form a wedge groove between an outer peripheral surface of the driven shaft and an inner peripheral surface of the outer ring portion; and an outer peripheral surface of the cam surface and the driven shaft. And a holding portion provided on the inner peripheral surface side of the outer ring portion to regulate a movement stroke of the roller.

[0018]

According to the first to fourth aspects of the present invention, the following effects are achieved because of the above-described configuration.

That is, according to the first aspect of the present invention, the driven shaft is linked to the driven gear via the forward rotation locking one-way clutch and is supported by the casing via the reverse rotation locking one-way clutch. The forward rotation lock one-way clutch integrally connects the driven shaft and the driven gear by transmitting the forward rotation of the transmission when the vehicle advances, and the reverse rotation lock one-way clutch is connected between the driven shaft and the driven shaft. A slip can be caused to allow the driven shaft to rotate forward, and the forward rotation of the transmission can be output via the driven shaft to a driven portion provided corresponding to the driven shaft.

In addition, according to the first aspect of the present invention, the forward rotation locking one-way clutch releases the connection between the driven shaft and the driven gear by transmitting the reverse rotation of the transmission when the vehicle is backed, and the driven shaft is driven. And the reverse rotation locking one-way clutch connects the driven shaft and a shaft support of the casing to prevent reverse rotation of the driven shaft with respect to the casing, thereby preventing reverse rotation of the transmission. To the driven part provided corresponding to the driven shaft can be prevented.

According to a second aspect of the present invention, the two driven parts are
The digital operation recorder provided in correspondence with the driving shaft and stopping the subtraction by the back signal of the vehicle, and the analog odometer provided in correspondence with the driven shaft. Similarly, when the transmission rotates forward and reverse, the driven shaft is prevented from rotating forward and reverse, respectively, and the output to the analog odometer is allowed during the forward rotation and blocked during the reverse rotation.

According to the third aspect of the present invention, the forward rotation locking one-way clutch is integrated on the driven gear side and the reverse rotation locking one-way clutch is integrated on the casing side, so that the vehicle can move forward. At the time of back and forward rotation, the forward rotation locking one-way clutch integrally rotates with the driven gear by transmitting the forward rotation and the reverse rotation of the transmission, and the one-way clutch for reverse rotation locking is fixed to the casing in a non-rotatable manner.

This one-way clutch for locking forward rotation locks the rotation relative to the driven shaft by forward rotation, transmits forward rotation of the transmission to the driven shaft, and rotates the driven shaft in the same direction, while rotating the driven shaft in the reverse direction. As a result, slippage occurs between the driven shaft and the driven shaft, causing the driven shaft to idle in the circumferential direction together with the driven gear, so that the reverse rotation of the transmission cannot be transmitted to the driven shaft. In addition, the one-way clutch for reverse rotation locking causes slippage between the driven shaft and the driven shaft when the driven shaft rotates forward, thereby allowing forward rotation of the driven shaft, while locking the reverse rotation of the driven shaft during reverse rotation of the driven shaft to prevent inertia. Can prevent the driven shaft from reversing.

According to a fourth aspect of the present invention, in the transmission of forward rotation of the transmission, the one-way clutch for forward rotation locks the roller in the wedge groove by integrally rotating the outer ring and the driven gear in the forward direction. The driven shaft is locked by exerting a wedge action, and by this lock, the driven shaft and the driven gear are connected to rotate integrally in the forward rotation direction, and the one-way clutch for the reverse rotation lock rotates the driven shaft by the forward rotation of the driven shaft. The driven shaft escapes from the wedge groove and slips with the driven shaft to allow the driven shaft to rotate forward.

Further, according to the invention described in claim 4, when the transmission is transmitted in the reverse direction, the one-way clutch for forward rotation lock releases the roller from the wedge groove by the integral rotation of the outer ring and the driven gear in the reverse direction, and the driven The slip between the driven shaft and the driven shaft is released to disengage the connection between the driven gear and the driven shaft, and the reverse rotation locking one-way clutch is driven in reverse by the inertia of the driven shaft so that the rollers engage with the wedge grooves and wedge. By exerting the action, the rotation of the driven shaft in the reverse rotation direction can be locked.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be specifically described based on illustrated embodiments.

FIGS. 1 to 3 show a transmission gear device 1 according to an embodiment.

This transmission gear device 1 comprises:
The other configuration is the same as that of the conventional transmission gear device 100, except for the structure of mounting the driven shaft. Therefore, hereinafter, the same components are denoted by the same reference numerals, and duplicate description will be omitted.

In the transmission gear device 1, a driving shaft 101 and a driven shaft 102 are formed by casings 106 and 107, similarly to the conventional transmission gear device 100.
The rotation of the transmission is rotatably supported between the driving shaft 101 and the driven shaft 102 via an intermediate gear 105 meshing with a driving gear 103 and a driven gear 104, respectively. , And to a digital odometer as a driven unit, and via a driven shaft 102 to an analog odometer as another driven unit.

At this time, the driven shaft 102 is linked to the driven gear 104 via the forward rotation locking one-way clutch 2 and is supported by the casing 107 via the reverse rotation locking one-way clutch 3.

The one-way clutch 2 for locking the forward rotation is driven by a driven gear 104 by transmitting the forward rotation of the transmission.
The lock gear is generated by the rotation of
And the driven shaft 102 is connected, and the connection between the driven gear 104 and the driven shaft 102 is released by the rotation of the driven gear 104 in the same direction due to the transmission of the reverse rotation of the transmission. Driven shaft 1 that rotates in the same direction during normal rotation of
02 to allow the driven shaft 102 to rotate forward, and by transmitting the reverse rotation of the transmission, the driven gear 104 rotates in the same direction to generate a locking force on the driven shaft 102 that is about to reverse by inertia. Driven shaft 1
02 is prevented from reversing.

More specifically, as shown in FIG. 4A, the forward rotation locking one-way clutch 2 includes an outer ring portion 4 press-fitted into a driven gear 104 and a driven shaft 1 having an inner peripheral surface of the outer ring portion 4.
02, a cam surface 5 formed along the circumferential direction, a roller 6 movably arranged in the circumferential direction between the cam surface 5 and the outer peripheral surface 102c of the driven shaft 102, It has a holding portion 7 that is arranged between the shaft 102 and the movement stroke of the roller 6 and has a substantially cylindrical shape (see FIGS. 1 and 2), and is integrated with the driven gear 104 side. I have.

A one-way clutch 3 for reverse rotation lock
4B is different from that of FIG. 4B in that it has an outer ring portion 4 press-fitted into a bottomed cylindrical shaft support portion 107a of a casing 107. It has a holding portion 7 and is formed in a substantially cylindrical shape similarly to the one-way clutch 2 for normal rotation lock (see FIGS. 1 and 3), and is integrated with the casing 107 side.

The one-way clutches 2 and 3 for normal rotation lock and reverse rotation form wedge grooves 8 having an angle θ between the respective cam surfaces 5 and the outer peripheral surface 102c of the driven shaft 102. Each of the rollers 6 engages with the wedge groove 8 to produce a wedge action that generates a locking force on the driven shaft 102.

The one-way clutches 2 and 3 for forward rotation lock and reverse rotation lock have a spring 9 between the roller 6 and the holding portion 7 for urging the roller 6 in a direction to engage the wedge groove 8. The quick response of the locking force of the two one-way clutches 2 and 3 can be improved by the mounting of the spring 9.

The transmission gear device 1 having the structure for mounting the driven shaft 102 operates as follows.

In the transmission gear device 1, similarly to the above-described conventional transmission gear device 100, one end 101 a of the driving shaft 101 is electrically connected to a digital operation recorder via a rotation sensor.
The other end 101b is linked to the transmission via an intermediate cable, and the other end 101b of the driven shaft 102
a is linked to an analog odometer via another intermediate cable and attached.

In the transmission gear device 1, the forward rotation of the transmission is transmitted to the driving shaft 101 via the intermediate cable when the vehicle advances, and
It is also transmitted to the driven gear 104 via the intermediate gear 105,
The driving shaft 101 and the driven gear 104 both rotate forward. The forward rotation of the driving shaft 101 is converted into a pulse signal by a rotation sensor and output to a digital operation recorder to accumulate the traveling distance, and the forward rotation of the driven gear 104
The driving distance is transmitted to the driven shaft 102 via a forward rotation one-way clutch 2 which rotates integrally with the driven shaft 102, and is transmitted to an analog odometer via an intermediate cable so that the traveling distance is integrated.

At this time, the driven gear 104
4A, when the driven gear 104 rotates forward in the direction a as shown in FIG. 4A, the roller 6 in the forward rotation locking one-way clutch 2 which rotates integrally with the driven gear 104 relatively moves. This is performed by moving in the direction c and engaging with the wedge groove 8. As a result, the relative rotation between the forward rotation locking one-way clutch 2 and the driven shaft 102 is locked, and the driven shaft 1
02 rotates forward with the driven gear 104 in the a direction. In the forward rotation of the driven shaft 102 in the direction a, the reverse rotation locking one-way clutch 3 moves the roller 6 in the direction e by the forward rotation of the driven shaft 102 in the direction a, as shown in FIG. Of the driven shaft 102
Is released, and a slip occurs between the driven shaft 102 and the driven shaft 102, thereby permitting the driven shaft 102 to rotate forward in the direction a.

On the other hand, when the vehicle reverses, the reverse rotation of the transmission is transmitted to the driving shaft 101 via the intermediate cable, and the driven gear 10 is transmitted via the intermediate gear 105.
4, the driving shaft 101 and the driven gear 104 are both reversely rotated. The reverse rotation of the driving shaft 101 is converted into a pulse signal by a rotation sensor and output to a digital operation recorder. The digital operation recorder records a back signal (backlight lighting signal of the vehicle) at the same time as the start of backing, as in the prior art. ) Is input to stop the subtraction of the traveling distance, and the reverse rotation of the driven gear 104 causes the driven shaft 1 of the forward rotation locking one-way clutch 2 to rotate integrally with the driven gear 104.
By releasing the lock on 02, the rotation is performed with respect to the driven shaft 102, and the transmission to the driven shaft 102 and the analog odometer is cut off. As a result, the subtraction due to the reverse rotation of the analog odometer can be prevented.

The unlocking of the forward rotation locking one-way clutch 2 with respect to the driven shaft 102 at this time is shown in FIG.
When the driven gear 104 reversely rotates in the direction b, the roller 6 in the forward lock one-way clutch 2 that rotates integrally with the driven gear 104 relatively moves in the direction d and escapes from the wedge groove 8. As a result, a slippage occurs between the forward rotation locking one-way clutch 2 and the driven shaft 102, and transmission of the reverse rotation of the driven gear 104 to the driven shaft 102 can be cut off. At this time, the driven shaft 102 tries to reversely rotate in the direction b due to the inertial force.
As shown in (b), when the driven shaft 102 reversely rotates in the direction b, the roller 6 in the reverse rotation locking one-way clutch 3
The driven shaft 102 moves in the direction and engages with the wedge groove 8. As a result, the relative rotation between the reverse rotation locking one-way clutch 3 and the driven shaft 102 is locked, and the driven shaft 102 is prevented from rotating in the direction b.

As described above, the transmission gear device 1 branches and transmits the forward rotation of the transmission when the vehicle advances, to the digital operation recorder and the analog odometer via the driving shaft 101 and the driven shaft 102, respectively. The mileage can be accumulated in each recorder, and the reverse rotation of the transmission when the vehicle is backing is not transmitted to the analog odometer, so that the subtraction due to the reverse rotation of the analog odometer is prevented, and the subtraction is performed by the back signal. It is possible to prevent occurrence of an error in the accumulated traveling distance between the digital operation recorder and the stopped digital operation recorder.

The transmission gear device 1
Since the one-way clutch 2 for forward rotation lock and the one-way clutch 3 for reverse rotation lock have the same configuration,
The parts are shared and the increase in the number of parts is suppressed to facilitate assembly.

[0044]

According to the present invention, as described in detail above, the following effects can be obtained.

That is, according to the first aspect of the present invention,
The driven shaft is linked to the driven gear via a forward rotation locking one-way clutch, and is also supported by the casing via the reverse rotation locking one-way clutch, so that the forward rotation of the transmission during forward movement of the vehicle is the driving shaft. And output to two driven portions provided respectively corresponding to the two shafts via a driven shaft, and when the transmission reversely rotates when the vehicle is backing, the driven shaft is stopped and the driven shaft is stopped. It is possible to provide a transmission gear device that can prevent reverse output to a driven portion provided corresponding to the above.

According to the second aspect of the present invention, two driven units are provided corresponding to the driving shaft, and the digital operation recorder which stops the subtraction by the back signal of the vehicle and the driven shaft. Since it is an analog odometer provided, the forward rotation of the transmission when the vehicle moves forward is branched and output to the digital operation recorder and analog odometer via the driving shaft and driven shaft, respectively, and travels to each recorder. In addition to being able to accumulate the distance, the reverse operation of the transmission when the vehicle is backing is not output to the analog odometer, so that the subtraction due to the reverse rotation of the analog odometer is prevented, and the subtraction is stopped by the back signal. To provide a transmission gear device capable of preventing occurrence of an error of an integrated traveling distance between the transmission and a recorder. It can be.

According to the third aspect of the invention, the forward rotation locking one-way clutch, which rotates integrally with the driven gear, locks the driven shaft during normal rotation and slips during reverse rotation, and is non-rotatably fixed to the casing. The slippage of the one-way clutch for reverse rotation locking performed on the driven shaft that rotates forward and the locking of the driven shaft that reverses rotation prevent transmission of reverse rotation of the transmission when the vehicle is backing to the driven shaft, thereby preventing the analog odometer from being subtracted. In addition, it is possible to provide a transmission gear device that does not cause an error in the accumulated traveling distance between the digital and analog operation recorders.

Further, according to the present invention, the forward rotation of the transmission when the vehicle is moving forward can be branched into the digital operation recorder and the analog odometer, and can be integrated respectively. When the reverse rotation of the transmission is transmitted, the one-way clutch for the forward rotation lock causes the roller to escape from the wedge groove due to the integral rotation of the outer ring and the driven gear in the reverse rotation direction, causing slip between the driven shaft and the driven gear and The connection between the driven shaft and the driven shaft is released, and the reverse rotation locking one-way clutch rotates in the reverse rotation direction of the driven shaft by causing the roller to engage with the wedge groove due to the reverse rotation due to the inertia of the driven shaft to perform wedge action. To prevent the analog odometer from being subtracted without transmitting reverse transmission of the transmission to the driven shaft. As a result, it is possible to prevent the occurrence of an error in the accumulated traveling distance with the digital operation recorder, and it is possible to configure the one-way clutch for forward rotation lock and the one-way clutch for reverse rotation lock with the same structure. A transmission gear device that is easy to assemble by sharing parts can be provided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a transmission gear device as one embodiment, taken along line AA of FIG. 2 (a).

FIGS. 2A and 2B are side views of the transmission gear device of FIG. 1, wherein FIG. 2A is a left side view and FIG.

FIG. 3 is a partially exploded perspective view of the transmission gear device of FIG. 1 with a part cut away.

4A and 4B are one-way clutches used in the transmission gear device of FIG. 1, wherein FIG. 4A is a partial cross-sectional view taken along line CC of FIG. 1, and FIG. 4B is a partial cross-sectional view taken along line DD of FIG. The figures are shown respectively.

FIG. 5 is a signal transmission system diagram of a conventional operation recorder.

FIG. 6 shows a conventional transmission gear device.
It is sectional drawing which follows the BB line of (a).

7A is a left side view of the transmission gear device of FIG. 6, and FIG. 7B is a right side view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transmission gear device 2 Forward rotation locking one-way clutch 3 Reverse rotation locking one-way clutch 4 Outer ring part 5 Cam surface 6 Roller 7 Holding part 8 Wedge groove 101 Driving shaft 102 Driving shaft 102c Outer peripheral surface (of driven shaft) 103 Driving gear 104 driven gear 105 intermediate gear 106, 107 casing 107a shaft support (of casing) 200 digital operation recorder (driven section) 300 analog odometer (driven section)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F16H 37/06 F16D 41/06 G01C 22/00 G06M 1/00 F16H 3/00-3/78

Claims (4)

(57) [Claims] 1. A driving shaft and a driven shaft are rotatably supported in a casing and are interlocked via an intermediate gear meshing with a driving gear and a driven gear respectively associated with the shafts. In a transmission gear device that outputs the rotation of the transmission via two shafts to two driven portions provided corresponding to the two shafts, the driven shaft includes a forward rotation one-way clutch. A transmission gear device that is linked to the driven gear through a one-way clutch for reverse rotation locking and is pivotally supported by the casing. 2. The transmission gear device according to claim 1, wherein the two driven parts are provided in correspondence with the driving shaft, and the digital driven driving recorder stops the subtraction by a back signal of the vehicle. A transmission gear device, which is an analog odometer provided corresponding to the driven shaft. 3. The transmission gear device according to claim 1, wherein the forward lock one-way clutch is integrated with the driven gear, and the reverse lock one-way clutch is connected to the casing. A transmission gear device characterized by being integrated with the transmission. 4. The transmission gear device according to claim 3, wherein the one-way clutches for normal rotation lock and reverse rotation lock are press-fitted to the driven gear and the casing, respectively. A cam surface formed on the inner peripheral surface so as to form a wedge groove between the outer peripheral surface of the driven shaft and the outer peripheral surface of the driven shaft; A transmission gear device, comprising: a roller movably disposed; and a holding portion provided on an inner peripheral surface side of the outer ring portion to regulate a movement stroke of the roller.