JP6842644B2 - Vehicle instruments - Google Patents

Description

The present invention relates to a vehicle instrument equipped with an integrator that displays a mileage.

Many vehicles have vehicle instruments such as speed meters and tachometers in front of the occupants. As such a vehicle instrument, one equipped with an integrator that displays the mileage of the vehicle is known. As a conventional technique relating to a vehicle instrument equipped with an integrator, there is a technique disclosed in Patent Document 1.

The technique disclosed in Patent Document 1 will be described with reference to FIGS. 9 and 10. FIG. 9 is a reprint of FIG. 1 of Patent Document 1. FIG. 10 is a reprint of FIG. 2 of Patent Document 1. The sign was reassigned as appropriate.

See FIG. The vehicle instrument 100 has a metal housing 101 and an integrator 110 supported by the housing 101 to display the mileage. The totalizer 110 includes a totalizer shaft member 111 fixed to the housing 101, a plurality of character wheels 112 rotatably provided on the totalizer shaft member 111 and having numerical values written on the surface thereof, and these character wheels 112. It has a pinion holder 113 which is arranged between the two and is rotatably provided on the totalizer shaft member 111.

See FIG. The pinion holder 113 rotatably supports the pinion gear 114 arranged between the character wheels 112 arranged on the left and right sides. As for the character wheel 112 arranged on the left, one numerical value is sent by the pinion gear 114 when the character wheel 112 arranged on the right makes one round.

See FIG. In the work of assembling the vehicle instrument 100 to the housing 101, the claw portion 113a formed on the pinion holder 113 is hung on the upper surface of the housing 101 to align the pinion holder 113 with an accurate position, and the integrator shaft member 111 is set. This is done by assembling to the shaft member support portion 101a formed in the housing 101.

Here, the pinion holder 113 is rotatably attached to the totalizer shaft member 111. Therefore, if the integrator shaft member 111 is assembled to the housing 101 without pressing the pinion holder 113, the integrator 110 may be assembled to the housing 101 with the pinion holder 113 displaced. According to the vehicle instrument 100, two operations must be performed at the same time in order to assemble the integrator shaft member 111 while aligning the pinion holder 113 with an accurate position.

Japanese Unexamined Patent Publication No. 2014-120048

An object of the present invention is to provide a vehicle instrument capable of easily assembling an integrator into a housing.

According to the invention of claim 1, a rotating body that rotates in conjunction with the rotation of wheels, an integrator that rotates a character wheel on which a numerical value is described based on the rotation of the rotating body, and displays a mileage, and these. A housing that rotatably supports the rotating body and the integrator of the
The totalizer is arranged between the totalizer shaft member fixed to the housing, a plurality of the character wheels rotatably provided on the totalizer shaft member, and the totalizer. It has a pinion holder rotatably provided on the meter shaft member, and a pinion gear rotatably supported by the pinion holder and arranged between the character wheels arranged on the left and right sides.
The character wheel arranged on the left is a vehicle instrument in which one numerical value is sent by the pinion gear when the character wheel arranged on the right makes one round.
The housing comprises a storage unit that houses at least the lower half of the totalizer.
This storage portion has a shaft member support portion on which the totalizer shaft member is supported, a front wall portion along the front surface of the character wheel, and a rear wall portion along the rear surface of the character wheel.
The pinion holder includes a holder main body portion having a circular shape centered on the totalizer shaft member, a front protruding portion protruding from the holder main body portion to the vicinity of the front wall portion, and the rear portion from the holder main body portion. Provided is a vehicle instrument having a rear protruding portion that protrudes to the vicinity of the wall portion, and the front wall portion and the rear wall portion prevent rotation.

As described in claim 2, preferably, the front lower end portion of the front protruding portion is formed with a downward slope toward the rear, and the rear lower end portion of the rear protruding portion has a downward slope toward the front. Is formed in.

In the invention according to claim 1, the pinion holder has a front protruding portion that protrudes from the holder main body portion to the vicinity of the front wall portion, and a rear protruding portion that protrudes to the vicinity of the rear wall portion. When the pinion holder is displaced in the rotational direction, the front protruding portion contacts the front wall portion, or the rear protruding portion contacts the rear wall portion. Since the pinion holder is rotatably provided on the totalizer shaft member, the pinion holder is rotated when the protruding portion formed on the holder comes into contact with the wall portion formed on the storage portion. By further pushing the integrator, the pinion holder is guided to the correct position by the wall formed in the storage portion. Therefore, it is not necessary to hold the pinion holder while assembling it to the housing when installing the integrator. It is possible to provide a vehicle instrument capable of easily assembling an integrator to a housing.

In the invention according to claim 2, the front lower end portion of the front protruding portion is formed with a downward slope toward the rear, and the rear lower end portion of the rear protruding portion is formed with a downward slope toward the front. .. If the pinion holder is displaced in the rotational direction when the integrator is assembled to the housing, the front lower end portion or the rear lower end portion comes into contact with the housing. Since these portions are formed in a tapered shape, the pinion holder can be easily rotated. Assembling workability can be further improved.

It is a perspective view of the instrument for a vehicle according to the Example of this invention. It is a top view of the vehicle instrument shown in FIG. It is a 3 arrow view of FIG. FIG. 2 is a sectional view taken along line 4-4 of FIG. It is an exploded perspective view of the totalizer shown in FIG. It is a 6-arrow view of FIG. It is a figure explaining the work of assembling the accumulator shown in FIG. 2 to the housing. It is a figure explaining the effect of this invention. It is a figure explaining the basic structure of the prior art. It is a figure explaining the main part of the vehicle instrument shown in FIG.

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the explanation, the left and right refer to the left and right with respect to the occupant of the vehicle, and the front and rear refer to the front and rear with reference to the traveling direction of the vehicle.
<Example>

See FIGS. 1 to 3. The vehicle instrument 10 is used for, for example, a two-wheeled vehicle, and the vehicle speed meter 50 and the totalizer 70 are assembled to the housing 20. The vehicle speed meter 50 is an eddy current type meter that displays the traveling speed of the vehicle. The totalizer 70 displays the mileage of the vehicle.

See FIG. The housing 20 includes a plate-shaped base portion 21 and a resin lid 30 that covers the base portion 21.

The vehicle speed meter 50 is rotatably supported by a metal tubular member 51 fixed to the base 21, a metal sliding bearing 52 provided on the inner circumference of the tubular member 51, and the sliding bearing 52. A first rotating shaft 53 (rotating body 53), a cup-shaped magnetic guiding body 54 fixed to the upper part of the first rotating shaft 53, and a first rotating shaft 53 housed in the magnetic guiding body 54. A magnet 55 fixed to the upper part of the above, a sliding bearing 56 housed in a hole formed at the upper end of the first rotating shaft 53, and a second rotating shaft whose lower end is rotatably supported by the sliding bearing 56. 57, an oil cup 62 fixed to the second rotating shaft 57 and filled with damper oil 61, a rotor 63 fixed to the outer periphery of the oil cup 62, and the upper end of the second rotating shaft 57. It has a fixed whiskers 64 (a urging member 64) and a worm 65 that meshes with a wheel portion 53a formed on a first rotating shaft 53.

See FIG. The totalizer 70 includes a totalizer shaft member 71 fixed to a lid 30 (see FIG. 2), six character wheels 72 rotatably provided on the totalizer shaft member 71, and these character wheels 72. It is arranged between the pinion holders 73, which are arranged in between and rotatably provided on the totalizer shaft member 71, and the character wheels 72, which are rotatably supported by these pinion holders 73 and are arranged on the left and right sides. It has a pinion gear 74 and a pinion gear 74.

See FIG. The base 21 is formed by, for example, press-forming a cold-rolled steel sheet. The base portion 21 has an insertion hole 21a into which the tubular member 51 is inserted at substantially the center.

The lid 30 is, for example, an injection-molded product formed by injection molding, and has a lid wall portion 31 raised from the base 21 and a ceiling portion extending parallel to the base 21 from the upper end of the lid wall portion 31. It has 32 and a box-shaped storage portion 40 that stores the totalizer 70 adjacent to the ceiling portion 32. Polybutylene terephthalate can be used as the resin of the lid 30.

The ceiling portion 32 is provided with a circular insertion hole 32a on the axis CL of the first rotating shaft 53. A second metal rotating shaft 57 is inserted into the insertion hole 32a. That is, the second rotation shaft 57 is arranged on the same axis CL as the first rotation shaft 53.

The ceiling portion 32 includes a cylindrical resistance portion 32b extending downward. The tip of the resistance portion 32b is immersed in the damper oil 61 to suppress the rotation of the rotor 63. The resistance portion 32b regulates the thrust direction of the rotor 63 by abutting against the bottom surface of the oil cup 62.

The storage portion 40 is formed in a box shape having an upper opening so that substantially the lower half of the totalizer 70 can be stored. The storage portion 40 has a bottom portion 41, a front wall portion 42 raised substantially vertically from the front end portion of the bottom portion 41, and a rear wall portion 43 raised from the rear end portion of the bottom portion 41. ..

The bottom portion 41 has a front portion formed in a flat shape and a rear portion formed in an arcuate shape of 90 ° along the character wheel 72.

The upper end of the front wall portion 42 includes a front guide portion 42a formed in a downward slope toward the rear so that the totalizer 70 can be easily stored in the storage portion 40.

Similar to the front guide portion 42a, the upper end of the rear wall portion 43 is formed with a downward slope toward the front so that the totalizer 70 can be easily stored in the storage portion 40. (See FIG. 8).

See FIG. The left and right ends of the storage portion 40 are closed by a left wall portion 44 and a right wall portion 45, respectively.

See FIG. The left wall portion 44 is formed with a substantially U-shaped shaft member support portion 44a that opens upward to support the totalizer shaft member 71. The shaft member support portion 44a is a portion to which the totalizer shaft member 71 can be assembled from above. The left wall portion 44 is integrally formed with a bending portion 44b that bends in the front-rear direction and a stopper 44c that is located at the upper end of the bending portion 44b and serves as a stopper to prevent the totalizer shaft member 71 from coming off.

The stopper 44c is formed with a tapered surface portion 44d that is inclined with respect to the extending direction of the shaft member support portion 44a from the upper end.

See FIG. The right wall portion 45 is formed with a shaft member insertion hole 45a into which the right end portion of the totalizer shaft member 71 is inserted.

The shaft member support portion 44a may be formed in the right wall portion 45, and the shaft member insertion hole 45a may be formed in the left wall portion 44. In this case, the flexible portion 44b, the stopper 44c, and the tapered surface portion 44d are integrally formed on the right wall portion 45.

The magnet 55 is a radial magnetized sintered magnet made of, for example, AlNiCo, and rotates at a rotation speed proportional to the traveling speed of the vehicle by inserting a cable from the vehicle into the first rotation shaft 53. To do.

The second rotating shaft 57, the oil cup 62, and the rotor 63 are integrally connected by insert molding.

The rotor 63 is made of a non-magnetic metal such as aluminum, and is formed into a cup shape by press molding. The rotor 63 is arranged in non-contact with the magnet 55 so as to cover the magnet 55.

The end portion of the whiskers spring 64 is fixed to the lid 30 by heat heating or the like.

The worm 65 is rotated by rotating the wheel portion 53a. The rotational force of the worm 65 is transmitted to the totalizer 70. That is, the numerical value displayed by the totalizer 70 is proportional to the amount of rotation of the worm 65. A well-known mechanism can be adopted as the mechanism for transmitting the rotational force of the first rotating shaft 53 to the integrator 70.

A flexible cable can be connected to the lower end of the first rotating shaft 53. The flexible cable transmits the rotation of the wheel to the first rotating shaft 53. That is, the first rotation shaft 53 rotates in conjunction with the rotation of the wheels.

When the two-wheeled vehicle travels, the first rotating shaft 53 rotates, and the magnetic core 54 fixed to the first rotating shaft 53 and the magnet 55 rotate integrally. On the other hand, the base 21, the tubular member 51, and the slide bearing 52 do not rotate.

An eddy current is generated by the rotation of the first rotating shaft 53, the magnet 55, and the magnetic core 54. Due to this eddy current, a force is applied to the rotor 63 in the rotational direction. The eddy current increases as the speed at which the magnet 55 rotates increases. When the eddy current becomes large, the rotor 63 rotates against the urging force of the whiskers spring 64. When the rotor 63 rotates, the second rotating shaft 57 and the oil cup 62 rotate. As the second rotating shaft 57 rotates, the pointer 67 (see FIG. 1) fixed to the tip of the second rotating shaft 57 also rotates. On the other hand, the lid 30, the resistance portion 32b, and the whiskers spring 64 do not rotate.

When the motorcycle decelerates, the rotation speed of the first rotating shaft 53 also decelerates. This reduces the eddy current. Due to the urging force of the whiskers 64, the second rotation shaft 57 is rotated in the direction opposite to that at the time of acceleration. When the two-wheeled vehicle stops, the second rotating shaft 57 and the pointer 67 are returned to the positions before the two-wheeled vehicle travels.

The oil cup 62 is rotatable and the resistance portion 32b is non-rotatable. The oil cup 62 is filled with damper oil 61. A force is applied to the oil cup 62 in the rotation direction due to the rotation of the magnet 55 or the like. At this time, the damper oil 61 and the resistance portion 32b also apply a force to the oil cup 62 in the direction of suppressing rotation at the same time. The force for suppressing this rotation is applied to the oil cup 62 during both acceleration and deceleration. As a result, the sudden rotation of the second rotating shaft 57 and the rotor 63 is suppressed. By suppressing the sudden rotation, the shake of the pointer 67 is suppressed.

See FIGS. 5 and 6. The character wheel 72 has a cylindrical shape having left and right partition walls 72a in the center. A numerical value 72b for indicating the mileage is displayed on the circumferential surface of the character wheel 72. The right side surface of the character wheel 72 is formed in the shape of an internal gear. The left side surface portion of the character wheel 72 is formed in the shape of an internal gear in which 1/10 (two) teeth 72d of the teeth 72c formed on the right side surface portion are formed. All character wheels 72 have the same configuration.

Character wheels 72R and 72L (in this paragraph, R is a subscript indicating the right side and L is a subscript indicating the left side) are arranged on the left and right sides of the pinion holder 73, respectively. As the right character wheel 72R rotates with reference to the pinion holder 73, the teeth 72d formed on the left side surface come into contact with the pinion gear 74. The pinion gear 74 is rotated by further rotating the character wheel 72R on the right. The pinion gear 74 is provided between the left and right character wheels 72R and 72L. In addition, teeth 72c are formed on the right side surface of the right character wheel 72R as a whole. Therefore, the pinion gear 74 rotates the right character wheel 72R. As a result, one numerical value 72b written on the surface of the character wheel 72R on the right is sent. That is, in the character wheel 72L arranged on the left, one numerical value 72b is sent by the pinion gear 74 when the character wheel 72R arranged on the right makes one round.

See FIG. The pinion holder 73 includes a holder main body 73a having a circular shape centered on the totalizer shaft member 71, a front protruding portion 73b protruding from the holder main body 73a to the vicinity of the front wall portion 42, and a holder main body 73a. A rear protruding portion 73c protruding from the rear wall portion 43 to the vicinity of the rear wall portion 43, a contact preventing portion 73d formed continuously on the upper portion of the rear protruding portion 73c to prevent the character wheel 72 from contacting the whiskers spring 64, and a pinion gear. It has a pinion gear support portion 73e that supports 74, and a pinion gear support portion 73e.

The front lower end portion 73f of the front protruding portion 73b is formed with a downward slope toward the rear. The rear lower end portion 73r of the rear protruding portion 73c is formed with a downward slope toward the front.

A method of assembling the totalizer 70 to the storage unit 40 will be described with reference to FIG. 7. As shown in FIG. 7A, first, one end (right end) of the totalizer shaft member 71 is inserted into the shaft member insertion hole 45a. Next, the other end (left end) of the totalizer shaft member 71 is assembled to the shaft member support portion 44a. Since the shaft member support portion 44a opens upward, the totalizer shaft member 71 is assembled from above.

As shown in FIG. 7B, the flexible portion 44b is bent by pushing the totalizer shaft member 71. By further pushing down, the totalizer shaft member 71 is assembled to the shaft member support portion 44a as shown in FIG. 7 (c). In the state where the totalizer shaft member 71 is assembled to the shaft member support portion 44a, the flexible portion 44b is not bent. In this state, the stopper 44c is located above the totalizer shaft member 71 to prevent the totalizer shaft member 71 from coming off.

See FIG. 8 (a). The pinion holder 73 is rotatably provided with respect to the totalizer shaft member 71. Therefore, when the pinion holder 73 is stored in the storage unit 40, the pinion holder 73 can rotate.

See FIG. 8 (b). When the pinion holder 73 rotates, the front protruding portion 73b contacts the front wall portion 42 (or the rear protruding portion 73c contacts the rear wall portion 43). When the pinion holder 73 is lowered in this state, the front protruding portion 73b is guided to the correct position by the front wall portion 42 (or the rear wall portion 43) as shown in FIG. 8 (c). By guiding the front protrusion 73b to the correct position, the rear protrusion 73c is naturally set to the correct position.

The present invention described above has the following effects.

See FIG. The shaft member support portion 44a is a portion to which the totalizer shaft member 71 can be attached from above. In addition, the pinion holder 73 has a front protruding portion 73b protruding from the holder main body portion 73a to the vicinity of the front wall portion 42, and a rear protruding portion 73c protruding to the vicinity of the rear wall portion 43. The totalizer 70 is assembled to the housing 20 from above the storage unit 40. At this time, if the pinion holder 73 is displaced in the rotational direction, the front protruding portion 73b comes into contact with the front wall portion 42, or the rear protruding portion 73c comes into contact with the rear wall portion 43. Since the pinion holder 73 is rotatably provided on the totalizer shaft member 71, the protrusions 73b and 73c formed on the pinion holder 73 come into contact with the wall portions 42 and 43 formed on the storage portion 40. It is rotated. By further pushing down the integrator 70, the pinion holder 73 is guided to an accurate position by the wall portions 42 and 43 formed in the storage portion 40. Therefore, it is not necessary to assemble the integrator 70 to the housing 20 while pressing the pinion holder 73 during the mounting work. It is possible to provide a vehicle instrument 10 to which the totalizer 70 can be easily assembled to the housing 20.

Further, the front lower end portion 73f of the front protruding portion 73b is formed with a downward slope toward the rear, and the rear lower end portion 73r of the rear protruding portion 73c is formed with a downward slope toward the front. If the pinion holder 73 is displaced in the rotational direction when the integrator 70 is assembled to the housing 20, the front lower end portion 73f or the rear lower end portion 73r comes into contact with the housing 20. Since these portions are formed in a tapered shape, the pinion holder 73 can be easily rotated. Assembling workability can be further improved.

Further, the upper end of the front wall portion 42 includes a front guide portion 42a formed in a downward slope toward the rear so that the totalizer 70 can be easily stored in the storage portion 40, and / or the rear wall. The upper end of the portion 43 includes a rear guide portion formed in a downward slope toward the front so that the totalizer 70 can be easily stored in the storage portion 40. When assembling the integrator 70 to the lid 30, the pinion holder 73 can be more easily guided to an accurate position.

See FIG. The lid 30 (housing 20) has a flexible portion 44b that can be bent in a direction away from the totalizer shaft member 71, and is located at the tip of the flexible portion 44b and is located above the totalizer shaft member 71. The stopper 44c that covers the above is integrally formed. With a simple configuration without increasing the number of parts, it is possible to prevent the totalizer shaft member 71 from coming off the shaft member support portion 44a.

Further, the shaft member support portion 44a has a width slightly larger than the diameter of the totalizer shaft member 71 and has a substantially U-shape that opens upward. The stopper 44c is formed with a tapered surface portion 44d that is inclined with respect to the extending direction of the shaft member support portion 44a from the upper end. By pushing down the integrator shaft member 71, the integrator shaft member 71 comes into contact with the tapered surface portion 44d. By further pushing down, the bent portion 44b bends. That is, by pushing down the totalizer shaft member 71, the flexible portion 44b is displaced and the flexible stopper 44c is displaced, so that the totalizer 70 can be easily assembled to the lid 30.

Further, a second rotating shaft 57 (pointer support shaft 57) for supporting the pointer 67 is provided in the vicinity of the totalizer 70, and the second rotating shaft 57 is moved in the return direction of the pointer 67 by the whiskers 64. Being urged. At least a part of the whiskers spring 64 is located above the character wheel 72. The pinion holder 73 protrudes between the character wheel 72 and the whiskers 64 based on the case where the totalizer 70 is viewed from the side, and provides a contact prevention portion 73d for preventing the whiskers spring 64 from coming into contact with the surface of the character wheel 72. Have. The influence of vibration of the engine and the like extends to the whiskers spring 64. The whiskers spring 64 vibrates toward the surface of the character wheel 72, and when they come into contact with each other, there is a risk that the numerical value (see FIG. 1) printed on the surface of the character wheel 72 may be scraped off. The pinion holder 73 has a contact prevention portion 73d that protrudes between the character wheel 72 and the whiskers spring 64. As a result, it is possible to prevent the whiskers spring 64 from coming into contact with the surface of the character wheel 72 and prevent the numerical value from being scraped off.

Although the vehicle instrument according to the present invention has been described by taking the one mounted on a two-wheeled vehicle as an example, it can be applied to a four-wheeled vehicle and other vehicles, and is not limited to those of these types. ..

The present invention is not limited to the examples as long as it exerts an action or an effect.

The vehicle instrument of the present invention is suitable for motorcycles.

10 ... Vehicle instrument 20 ... Housing 40 ... Storage 42 ... Front wall 43 ... Rear wall 44a ... Shaft member support 53 ... First rotating shaft (rotating body)
70 ... Integrator 71 ... Integrator shaft member 72 ... Character wheel 72b ... Numerical value 73 ... Pinion holder 73a ... Holder body 73b ... Front protrusion 73c ... Rear protrusion 73f ... Front lower end 73r ... Rear lower end 74 ... Pinion gear

Claims (2)

A rotating body that rotates in conjunction with the rotation of the wheels, an integrator that displays the mileage by rotating a character wheel with a numerical value based on the rotation of this rotating body, and these rotating bodies and an integrator can be rotated. With a housing that supports,
The totalizer is arranged between the totalizer shaft member fixed to the housing, a plurality of the character wheels rotatably provided on the totalizer shaft member, and the totalizer. It has a pinion holder rotatably provided on the meter shaft member, and a pinion gear rotatably supported by the pinion holder and arranged between the character wheels arranged on the left and right sides.
The character wheel arranged on the left is a vehicle instrument in which one numerical value is sent by the pinion gear when the character wheel arranged on the right makes one round.
The housing comprises a storage unit that houses at least the lower half of the totalizer.
This storage portion has a shaft member support portion on which the totalizer shaft member is supported, a front wall portion along the front surface of the character wheel, and a rear wall portion along the rear surface of the character wheel.
The pinion holder includes a holder main body portion having a circular shape centered on the totalizer shaft member, a front protruding portion protruding from the holder main body portion to the vicinity of the front wall portion, and the rear portion from the holder main body portion. A vehicle instrument having a rear protruding portion that protrudes to the vicinity of the wall portion, and whose rotation is prevented by the front wall portion and the rear wall portion. A claim characterized in that the front lower end portion of the front protruding portion is formed with a downward slope toward the rear, and the rear lower end portion of the rear protruding portion is formed with a downward slope toward the front. Item 1. The vehicle instrument according to item 1.

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