JP3019303B2 - Integrator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integrator for integrating and displaying, for example, a traveling distance of a vehicle.

[0002]

2. Description of the Related Art First, a carry structure of a general conventional integrator will be described with reference to FIGS.

A transmission wheel 3 is rotatably supported on the lower girder side, which is one side of the support shaft 1, and a numeral wheel 2 of a required number of digits is provided on the upper girder side with respect to the transmission wheel 3. And are rotatably supported in parallel.

External teeth gear-shaped continuous teeth 4 are formed on the lower digit side of each of the numeral wheels 2 and the transmission wheel 3, and two external gear-shaped intermittent teeth 5 are formed on the upper digit side. I have. This intermittent tooth 5 is provided with two tooth ridges 5A and 5B via a valley 5D,
In addition to the troughs 5D of the intermittent teeth 5 , a locking peripheral surface 5C is provided.

[0005] The adjacent continuous teeth 4 and intermittent teeth 5 can be simultaneously meshed with each other, and pinions 6 which are opposed to the locking peripheral surface 5C of the intermittent teeth 5 and are detently held are arranged side by side to the pinion shaft 9. It is pivoted.

FIG. 1 shows an outer pinion system in which the pinion 6 circumscribes the numeral wheel 2.
The above structure is the same in the inner pinion system in which the pinion 6 is arranged in the numeral wheel 2.

Therefore, except when the carry of the integrator is driven,
The teeth of the pinion 6 face the locking peripheral surface 5C, thereby restricting the rotation of the pinion 6 to prevent the numeric wheel 2 from unexpectedly rotating.
On the other hand, in the carry operation of the integrator, the drive wheel meshing with the continuous teeth 4 of the transmission wheel 3 is driven, and the transmission wheel 3 is rotated. The position of the portion 5D rotates, the teeth of the pinion 6 mesh with the valleys 5D between the tooth ridges 5A and 5B, and the pinion 6 on the lowermost digit side is first intermittently rotated.

The rotation of the pinion 6 causes the lowermost digit wheel 2 to intermittently rotate through the continuous teeth 4 each time the transmission wheel 3 is rotated.

The intermittent tooth 5 rotates in accordance with the rotation of the lowermost digit wheel 2 in the above-described manner, and the pinion 6 of the next stage is similarly rotated by rotating the pinion 6 of the next digit. The wheel 2 is rotated by a carry every rotation of the numeral wheel 2 on the lower digit side.

[0010] Therefore, it is configured that the display is integrated by the numeral string 7 of the numeral wheel 2 which is sequentially rotated.

[0011]

On the other hand, the pinion 6
As described above, except for the carry-up drive, the rotation is restricted and is prevented from rotating by opposing the locking peripheral surface 5C, and meshes with the valleys 5D of the ridges 5A and 5B of the intermittent teeth 5 that rotate. Thus, carry-up driving (intermittent rotation) is performed. Although the pinion 6 is pressed against the continuous teeth 4 and the intermittent teeth 5 by pressing means or the like, it is designed so as to provide a slight engagement clearance S as shown by a solid line in FIG.

For this reason, when the pinion 6 is rotated by the intermittent teeth 5, it is imagined that after the intermittent teeth 5 pass through, the pinion 6 should normally rotate to the state shown by the solid line. As shown by the line, when the tooth ridge 5B on the rear side with respect to the driving rotation direction of the intermittent tooth 5 passes through, the rotation of the pinion 6 ends, and the rotation of the pinion 6 is adjusted to the proper position indicated by the solid line. May not go all the way.

[0013] Therefore, the numeral wheel 2 to be carried does not carry out the rotation for this amount, and a character shift occurs.

For example, the numeral wheel 2 of the least significant digit rotated by the transmission wheel 3 is not fully turned and the characters are shifted as shown in FIG.

As shown in FIG. 17, such character misalignment is more likely to occur in the upper digit side due to the above-described engagement clearances S when the numeric wheels 2 are simultaneously carried and rotated. turn into.

It is an object of the present invention to find out that a character shift occurs due to such a cause, and to provide an integrator in which the character shift is eliminated and the character shift is suppressed as compared with the conventional product and is easy to see.

[0017]

The gist of the present invention will be described with reference to the accompanying drawings.

A plurality of numeral wheels 2 and transmission wheels 3 are arranged side by side on a support shaft 1 so as to be rotatably supported, and continuous teeth 4 are formed on the lower digit side of the numeral wheels 2 and transmission wheels 3. In addition, an intermittent tooth 5 is formed on the upper digit side of the numeral wheel 2 and the transmission tooth 3, and a pinion 6 that meshes with the continuous tooth 4 and can simultaneously mesh with the continuous tooth 4 and the adjacent intermittent tooth 5 is provided. In addition, in the integrator configured to perform integration display by the number sequence 7 by the number wheel 2 sequentially rotated, the number wheel 2 and the transmission wheel 3
At least at one of the intermittent teeth 5, toward the tooth ridge 5 </ b> B on the rear side with respect to the driving rotation direction of the intermittent tooth 5 corresponding to the meshing point of the pinion 6, and toward the meshing pinion 6. The present invention relates to an integrator provided with a protruding portion 8 which protrudes.

Also, a plurality of numeral wheels 2 and transmission wheels 3 are arranged side by side on a support shaft 1 so as to be rotatably supported respectively, and continuous teeth 4 are provided on the lower digit side of the numeral wheel 2 and transmission wheels 3. Are formed on the upper digit side of the numeral wheel 2 and the transmission teeth 3 to form intermittent teeth 5 provided with tooth ridges 5A and 5B on the locking peripheral surface 5C via valleys 5D, and mesh with the continuous teeth 4. And intermittent teeth 5 adjacent to the continuous teeth 4
And a pinion 6 which is simultaneously meshable with the locking peripheral surface 5C of the intermittent tooth 5 and is held against rotation is provided, and the accumulated number is displayed by a numeral string 7 by the numeral wheel 2 which is sequentially turned and rotated. In the configured integrator, at least one of the intermittent teeth 5 of the numeral wheel 2 and the transmission wheel 3 is located on the rear side with respect to the driving rotation direction of the intermittent tooth 5 corresponding to the position where the pinion 6 meshes. 2. The integrator according to claim 1, wherein a protrusion 8 protruding toward the meshing pinion 6 is provided on the tooth ridge 5B on the side of the tooth ridge 5B.

Also, a plurality of numeral wheels 2 and transmission wheels 3 are arranged side by side on a support shaft 1 so as to be rotatably supported respectively, and continuous teeth 4 are provided on the lower digit side of the numeral wheel 2 and transmission wheels 3. Are formed on the upper digit side of the numeral wheel 2 and the transmission teeth 3 to form intermittent teeth 5 provided with tooth ridges 5A and 5B on the locking peripheral surface 5C via valleys 5D, and mesh with the continuous teeth 4. And intermittent teeth 5 adjacent to the continuous teeth 4
And a pinion 6 which is simultaneously meshable with the locking peripheral surface 5C of the intermittent tooth 5 and is held against rotation is provided, and the accumulated number is displayed by a numeral string 7 by the numeral wheel 2 which is sequentially turned and rotated. In the configured integrator, at least one of the intermittent teeth 5 of the numeral wheel 2 and the transmission wheel 3 is located on the rear side with respect to the driving rotation direction of the intermittent tooth 5 corresponding to the position where the pinion 6 meshes. according to the engaging peripheral surface 5C except Hayama 5B of Hayama 5B side, the totalizer of claim 1 Symbol mounting, characterized in that a projecting portion 8 projecting toward the pinion 6 side to the meshing Things.

[0021]

The rotation of the intermittent tooth 5 causes the pinion 6 to rotate intermittently, and the rotation of the pinion 6 causes the numeral wheel 2 of the next digit to carry up through the continuous teeth 4 meshing with the pinion 6 simultaneously. However, when the rear tooth ridge 5B with respect to this driving rotation direction passes through while rotating the pinion 6 at the time of the carry-up rotation due to the rotation of the intermittent tooth 5, the tooth ridge 5B is provided on the tooth ridge 5B side. The projection 8 pushes and rotates the pinion 6 to rotate the pinion 6 to an appropriate position.

Therefore, even if there is a clearance S between the pinion 6 and the continuous teeth 4 and the intermittent teeth 5, the pinion 6 is rotated to an appropriate position by the protruding portion 8, whereby the numeral wheel 2 which is turned and turned is carried. It will rotate to the proper position and character misalignment can be suppressed.

[0023]

The present embodiment is an improvement of the integrator having the carry structure described in the conventional example and the application of the present invention. Is omitted.

FIGS. 1 to 8 show a first embodiment.

This embodiment belongs to the first, second, and third aspects of the present invention.
The projecting portion 8 is provided on the intermittent teeth 5 of the transmission wheel 3 (shown in FIG. 3) or the numeral wheel 2 (shown in FIG. 4) arranged on the lower digit side.

As shown in FIGS. 1 to 4, of the intermittent teeth 5 formed of two teeth 5A and 5B on the locking peripheral surface 5C via the valleys 5D, the teeth on the rear side in the drive rotation direction. A protruding portion 8 is provided by forming a linear protruding strip by integral molding on the top surface of 5B and the locking peripheral surface 5C in series therewith.

Therefore, as shown in FIGS. 5 to 7, when the intermittent tooth 5 is pulled out while rotating the pinion 6, the protruding portion 8 on the rear tooth ridge 5B moves the pinion 6 to a predetermined rotation position. You will end up turning it all the way.

Therefore, in the conventional example having no protrusion 8,
As described above, when the rear tooth ridge 5B passes through for setting the clearance S, the carry-up rotation of the pinion 6 ends, and the pinion 6 reaches an appropriate position via the clearance S.
The rotation of the pinion 6 has been completed without turning, but in this embodiment, when the rear tooth ridge 5B comes off, the projecting portion 8 further turns the pinion 6 to an appropriate position via the clearance S. The rotation of the pinion 6 prevents the numeral wheel 2 of the next digit from being completely turned, thereby reliably preventing a character shift.

Therefore, the projecting height of the projecting portion 8 in this embodiment is designed to push the pinion 6 to a predetermined appropriate position.

In this embodiment, no projection 8 is provided on the front tooth ridge 5A. A protruding portion 8 is provided on the front tooth ridge 5A side.
This is because there is a possibility that the rotation of the pinion 6 may be hindered if the ridge is provided. In this embodiment, the protruding portion 8 is provided only on the intermittent teeth 5 of the transmission wheel 3 as shown in FIGS. 1 to 3. However, as shown in FIG. The projection 8 may be provided on all the rear tooth ridges 5B.

FIG. 9 shows a second embodiment in which the projection 8 is provided by projecting the top surface of the rear tooth ridge 5B so as to be higher than the front tooth ridge 5A by a predetermined projection height. Is shown.

FIG. 10 shows a tapered surface 10 on the rear side of the projection 8.
A third embodiment is shown in which the projection 8 is hit when the numeral wheel 2 and the transmission wheel 3 are rotated in the reverse direction as required so that the rotation is not hindered.

FIG. 11 shows a protruding portion 8 on the rear tooth ridge 5B.
Are provided directly on the locking peripheral surface 5C without being provided directly.
The drive of the intermittent tooth 5 corresponding to the meshing position of the pinion 6
A Hayama 5B side of the rear side of the dynamic rotation direction, Hayama 5
Located in equivalent rotational position relative to B and the driving rotational direction
Projecting the engaging peripheral surfaces 5 C located on the rear side of the valley 5D 8
FIG. 9 illustrates a fourth embodiment in which
In this case, the pinion 6 is not driven by the carry drive as described above.
The rotation is regulated to face the locking peripheral surface 5C,
Valleys of the tooth ridges 5A and 5B of the intermittent tooth 5 which is held and rotated
To carry driving (intermittent rotation) between the meshing child to 5D
At this time, the rear tooth ridge 5B and the driving rotation
The pinion is formed by a protruding portion 8 provided on a locking peripheral surface 5C which is located at a rotation position equivalent to the direction and located behind the valley portion 5D.
The ON 6 is pressed to rotate to an appropriate position.

Incidentally, the fourth embodiment shown in FIG.
As clearly indicated on the surface, the pin is located behind the valley 5D.
From the locking peripheral surface 5C corresponding to the meshing position of the nonion 6,
On the locking peripheral surface 5C that does not correspond to the meshing position of the pinion 6
This is an embodiment in which the protruding portion 8 is formed up to the reaching portion.

On the other hand, the locking peripheral surface 5C may not be provided at all, but may be provided only on the rear tooth ridge 5B.
When the protruding portion 8 is provided at C, the protruding portion 8 is provided at a position slightly further rearward than the tooth ridge 5B on the rear side with respect to the driving rotation direction,
The pinion 6 may be configured to be further rotated by being pushed by the projection 8 with a slight delay from the rotation by the tooth ridges 5A and 5B.

FIG. 12 shows a fifth embodiment in which the present invention is applied to an inner pinion type in which a pinion 6 is disposed in a numeral ring 2.

[0037]

Since the present invention is constructed as described above, the presence of the clearance between the continuous teeth, the intermittent teeth and the pinion conventionally causes the pinion to carry the predetermined rotation when the pinion is carried by the rotation of the intermittent teeth. The character wheel of the numeral wheel, which is caused by not rotating to the position, is prevented, and an excellent integrator that is easy to see as compared with the conventional example is provided.

[Brief description of the drawings]

FIG. 1 is a front view of a first embodiment.

FIG. 2 is a perspective view of a main part of the first embodiment.

FIG. 3 is an enlarged perspective view of the intermittent teeth of the transmission wheel according to the first embodiment.

FIG. 4 is an enlarged perspective view of the intermittent teeth of the numeral wheel showing a case where a protruding portion is provided on the intermittent teeth of the numeral wheel according to the first embodiment.

FIG. 5 is an explanatory diagram showing a state before a rotation start in a carry-up rotation operation of the pinion due to the intermittent teeth of the first embodiment.

FIG. 6 is an explanatory diagram showing a state in the middle of rotation in the carry-up rotation operation of the pinion due to the intermittent teeth of the first embodiment.

FIG. 7 is an explanatory view showing a state after the end of the rotation in the carry-up rotation operation of the pinion due to the intermittent teeth of the first embodiment.

FIG. 8 is an explanatory side view of the first embodiment.

FIG. 9 is an explanatory side view of the second embodiment.

FIG. 10 is an explanatory side view of the third embodiment.

FIG. 11 is an enlarged perspective view of an intermittent tooth of a transmission wheel according to a fourth embodiment.

FIG. 12 is a side view of the fifth embodiment.

FIG. 13 is a perspective view of a main part of a conventional example.

FIG. 14 is an enlarged perspective view of an intermittent tooth of a conventional transmission wheel.

FIG. 15 is an explanatory view showing a carry-up rotation operation of a pinion due to intermittent teeth of a conventional example.

FIG. 16 is an explanatory front view showing a character shift in a conventional example.

FIG. 17 is an explanatory front view showing a character shift in simultaneous rotation of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support shaft 2 Numeral wheel 3 Transmission wheel 4 Continuous tooth 5 Intermittent tooth 5A / 5B Tooth ridge 5C Locking peripheral surface 5D Valley 6 Pinion 7 Numerical sequence 8 Projection

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-49-131179 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06M 1/00-3/14 G01C 22 / 00

Claims (3)

(57) [Claims] 1. A plurality of numeral wheels and transmission wheels are arranged side by side on a support shaft and rotatably supported respectively, and continuous teeth are formed on the lower digit side of the numeral wheels and transmission wheels. and the higher digit side of the transfer teeth form an intermittent teeth meshed with the trailing teeth, and the communication
In a multimeter configured to provide a pinion that can be simultaneously meshed with a connecting tooth and an adjacent intermittent tooth, and to display an accumulation by a number string by a number wheel sequentially rotated, At least one of the intermittent teeth is provided with a protruding portion that protrudes toward the meshing pinion on a tooth side on a rear side with respect to a driving rotation direction of the intermittent tooth corresponding to a meshing point of the pinion. An integrator, characterized in that: 2. A plurality of numeral wheels and transmission wheels are arranged side by side on a support shaft and rotatably supported respectively, and continuous teeth are formed on the lower digit side of the numeral wheels and transmission wheels. Intermittent teeth with tooth ridges formed on the upper peripheral side of the transmission teeth and the locking peripheral surface via valleys can be meshed with this continuous tooth, and simultaneously mesh with this continuous tooth and the adjacent intermittent tooth In the integrator configured to provide a pinion that is opposed to the locking peripheral surface of the intermittent teeth and held to prevent rotation, and that the accumulated number is displayed by a number string by a number wheel that is sequentially turned and rotated, At least one of the intermittent teeth of the transmission wheel has a tooth ridge on a rear tooth hill side with respect to a driving rotation direction of the intermittent tooth corresponding to a meshing point of the pinion, and is directed toward the meshing pinion side. The integrator according to claim 1, wherein a protruding portion is provided to protrude. 3. A plurality of numeral wheels and transmission wheels are arranged side by side on a support shaft and rotatably supported respectively, and continuous teeth are formed on the lower digit side of the numeral wheels and transmission wheels. Intermittent teeth with tooth ridges formed on the upper peripheral side of the transmission teeth and the locking peripheral surface via valleys, mesh with this continuous tooth, and can simultaneously mesh with this continuous tooth and the adjacent intermittent tooth In the integrator configured to provide a pinion that is opposed to the locking peripheral surface of the intermittent teeth and held to prevent rotation, and that the accumulated number is displayed by a number string by a number wheel that is sequentially turned and rotated, At least one of the intermittent teeth of the transmission wheel has, on a locking peripheral surface excluding a tooth ridge on a tooth side on a rear side with respect to a driving rotation direction of the intermittent tooth corresponding to a meshing point of the pinion, No mounting according to claim 1 Symbol characterized in that a protrusion protruding toward the pinion side which meshes Integrator.