JPS59187156A - Speed change gear - Google Patents

Abstract

PURPOSE:To permit to miniaturize the gear and transmit rotation smoothly by a method wherein the gear is formed by a pair of gears which lack teeth partially and whose teeth part corresponds to the part of meshing gear, which lacks the teeth therefor, and a pair of segment gears, meshing with both gears which lack teeth partially and being connected to respective rotary members through transmitting rods. CONSTITUTION:A pair of gears 2, 2, having the parts thereof which lack teeth, are secured to an input rotary shaft 1 supported by a frame 11. A pair of transmitting segment gears 3, 3, meshing with both gears 2, 2, are attached to an intermediate shaft 4 while a pair of pivoting members 6, 6 are secured to an output shaft 5 arranged in parallel at a position apart from the intermediate shaft 4. The transmitting segment gears 3, 3 and the pivoting members 6, 6 are connected through the transmitting rods 7, 7. The gears 2, 2 are formed with gear parts 8 having necessary number of teeth and the parts 9 which lack the teeth thereof alternately with equal angles and both of the gears 2, 2 are secured to the input rotary shaft 1 so that the teeth part 8 opposed to the teeth lacking part 9 of the meshing gear wheel.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transmission device that uses a partially toothed gear and a sector I gear to output input rotation at a desired ratio.

A transmission device using a pair of partially toothed gears, in which a reciprocating body is reciprocated by the gears, and a driven wheel is rotated by the M movement of the reciprocating body, has been published by the present applicant in Japanese Patent Publication No. 53-38375. However, since the reciprocating bodies in a straight line are reciprocating each other at 4km, the overall shape becomes larger and the meshing of the teeth lacks smoothness. 1st grade J 1st grade.

The present invention was made in consideration of the above points, and the object is to provide a single speed change gear that is compact in its entirety and that allows for smooth rotational transmission.

The configuration of this cable is coaxial &
'', a pair of transmission sector gears arranged so as to be able to engage the teeth rjH of the double hole 141 tooth wheel, and 111
It is mounted on the shaft of 1- (-J) and consists of a pair of rotating members connected via a transmission rod and a transmission sector gear corresponding to opposite positions sandwiching the rotation axis, and a toothed toothed wheel and a transmission By selecting the angle of the front part of the shaped gear, a desired transmission ratio can be obtained, and the gears can be shaped so that they interlock with each other (shape so as to be smooth).

The present invention will be described below with reference to the embodiments shown in the accompanying drawings.

As shown in the figure, in the transmission device of the present invention, a pair of partially toothed gear wheels 2 and 2 are fixed to a manually operated rotating shaft 1 supported by a frame 11 with appropriate opening and opening, and the gear wheels 2 and 2 are meshed with each other. A pair of transmission fan-shaped wheels 3 and 3 are attached to the intermediate shaft 4, and the rotating part 6.6 of the output shaft 5Q, which is arranged parallel to the intermediate shaft 4 at a distance from the intermediate shaft 4, is fixed. It is constructed by connecting a transmission fan-shaped wheel 3.3 and a rotating member 6.6 with a transmission rod 7.7.

The toothless gear wheels 2 and 2 have a required number of teeth q(t, s) and toothless portions 9 alternately formed at equal angles. The input rotation jilIi+1 (this is fixed so as to correspond to the toothless portion 9 of the mating gear).

The angle α of the toothed portion 8 and the angle αl of the toothless portion 9 are equal, and the toothless gear wheel 2 and the transmission sector gear 3 are each formed with an arbitrary (■ A tooth portion 10 is formed which meshes with the tooth portion 8 of the toothed gear wheel 2.
When mating with one wheel 2, the other transmission gear is set so that its tooth portion 10 corresponds to the toothless portion 9 with respect to the other toothless gear wheel 2.
It is displaced in the swing direction Q by the angle between the gear 8 and the toothless portion 9.

The teeth 8 and 10, which are in a relationship that allows them to mesh with each other, are formed in such a shape that they smoothly mesh at the starting end in the rotational direction and reliably mesh at the terminal end. ing.

In the illustrated case, the tooth portion 8 of the toothless gear wheel 2 on the input side is rotated! The first tooth 8a located at the tip in the transmission direction is formed to overlap at an appropriate height between the pitch circle P and the tooth tip, and the second tooth 8b and third tooth 8c are formed in a regular shape. However, the fourth tooth 8d is located at the front part in the rotational direction (1-j ahead from the root of the tooth where it is located).
Make Tj a straight line in the radial direction, and cut out the rear part from the tip of the tooth H7 part 9
(Q reaches) ζ1 slope to form a triangle Q.

In addition, m part]0 of the transmission sector gear 3 is the first 1%:fl
0a and the third tooth 10c are formed into regular shapes, and the second tooth 10c is formed into a regular shape.
The tooth TOb is the pitch circle]? The fourth tooth 10cl is formed so that the surface of the tooth tip is directly cut IQ in the radial direction from the root of the tooth at the rear end. be.

- From the shape of the tooth parts 8 and 10 as shown, they begin to mesh (-Here, the first one 8a is the second fA; f 10
2i fit on the second tooth 10a without contacting with b,
The rotation of the partially toothed gear wheel 2 can be transmitted to the transmission sector gear 3 (the fourth space wheel 8d and 10d can reliably transmit the rotation until the end of IIIM, push it out, and smoothly separate). become.

Transmission rod 7 connected to end Q of transmission fan gears 3 and 3 on both sides
．． The tips of 7 are connected to the rotating member 6.6 at opposing positions sandwiching the rotation axis, and one side is connected to the rotating member 6.6 at a rotating angle of the transmission sector gear rotating in conjunction with the partially toothed gear wheel 2 and 111a. The rotating member 6 is rotated 180 degrees, and the other rotating member 6 that rotates integrally with this rotates the transmission sector gear corresponding to the toothless portion 9 backward.

Therefore, when the partially toothed toothed gear wheel 2.2 is rapidly rotated in the direction of the arrow (a) in FIG. At a constant angle in the opposite direction, like a piston, the rotating member 6.6 continuously rotates in the direction indicated by the arrow in Fig. The rotation of the partially toothed toothed wheel 2.2 is transmitted to the output shaft 5 of the rotating member 6.6 at an increased speed.

Regarding the above gear ratio, if the gear ratio is −×, then 2πr Completed = Y.

In this case, r is the radius of the partially toothed toothed wheel 2, Y is the base unit variable arc, and
1 is AX B, 0 line" - (this is, x - 3 is disclosed. Also, the radius P of the partially toothed gear wheel 2 and the sector gear 3
Regarding the relationship between the radius P1, the absolute condition is that the circumferential lengths of the tooth portions 8 and 10 are set to be equal in any case.

Further, the radius of the rotating part A 26 and the length L of the transmission rod 7 will vary depending on the gear ratio and the position of the sector gear 3 and the rotating member 6, etc., and FIG. shows this relationship.

The transmission device of the present invention has a configuration as shown in (1) above, and when the partially toothed gear width 2.2 is sold continuously, the sector gear 3 that meshes with the partially toothed gear width 2 appears as shown by the arrow (b). Rotating member 6
is rotated by 180 degrees, and the other sector gears 3 are rotated in the direction of the arrow (c).

When the forward rotation of one of the sector gears 3 is completed, the toothless portion 9 is exposed, and the backward rotation of the other sector gear 3 is completed, and the teeth 2 of the other sector gear 3 are engaged. Therefore, the rotating part 6 is rotated 180 degrees by the other sector gear.

In this way, the toothless gear width 2.2 is alternately divided into sector gears 3 and 3.
The rotation of the rotating part 6.6 is caused by the rotation of the sector gear 3.3.
The tooth section 8 and the sector gear 30, which are provided with a width of 2Q, are used for the backward rotation of the gear, and continuously change the speed and transmit 20 rotations of the gear width 2Q to the rotating part 6.6. If the shape of the teeth 10 provided here is reverse-zero, the rotation member 6 can be used as an input side, and the toothless gear width 2 can be used as an output side to transmit deceleration rotation.

As described above, according to the present invention, since it is configured as described above, there are effects as listed below.

(1) A pair of toothless gears arranged so that the tooth portions correspond to the toothless portions of the partner, a pair of sector gears arranged so as to mesh with both of the toothless gears, and a sector gear and transmission. It consists of a pair of rotating members connected through a rod, and the width of the partially toothed gear and the teeth of the sector gear are made so that the beginning and end of the rotation direction smoothly engage and disengage, so that the rotational force is reduced. The reciprocating motion Q
After this conversion, it can be extracted again as a rotational force, and the rotation can be transmitted by the gear Q, so that strong deceleration or acceleration rotation can be extracted.

(2) Since the width of the partially toothed gear and the teeth of the sector gear mesh and disengage smoothly, rotation can be transmitted smoothly.

(3) Selecting the angle of the teeth of the hollow south gear wheel and the sector gear. It is possible to obtain different gear ratios.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the transmission according to the present invention, FIG. It is an explanatory view showing the relationship between the length of the transmission frame and the length of the transmission frame.
jA] Cedar tooth JL, 4... Intermediate shaft, 5... Output shaft, 6
... Rotating part 4], 7... Transmission frame, 8.10... Tooth part, 9... Missing tooth part, 8a, 10a-first tooth, 8d1
10d...Fourth dental procedure amendment (discharge) June 1981 1 [1 Display of 1, 11 1988 1-? Patent Application No. 62500 2, Name of Invention Transmission & I 3 Relationship with the amendment table case '4:r;'! '+-Applicant f1 place
1-106-10 Fujitacho, Moriguchi City, Osaka Prefecture Name (famous phrase)
Zhao Shu Behind the scenes 1, 1 also person l'Ji 06 (631) 00214
Representative j-,,'-l Niji 1-5゜8, Contents of the amendment As shown in the attached sheet, Contents of pressure 1, Details: Page 6, 4th line from the bottom, ``1's ``unit variable arc,'' Please make the following corrections. "There is a unit motion arc required, and Y = 2α." 2 "Tooth part 2?" in "Tooth part 2?" (7th line 1 from the bottom of page 7) (this is corrected. 3. Petition : The drawings attached to Box 2I] have been corrected as shown in the attached document. Procedural Amendment (Vinegar) February 1, 1981 Kazuo Wakasugi, Commissioner of the Patent Office 2 Name of the invention Transmission device i: 5 3 Amendment. Relationship with the person's case 11' Applicant I! Place: Osaka no f (Mori 1) 1-106-1 Ichihara IU-cho
0Iゝ;S (fAA') Zhao 4gl
Isao 5゜ Showa 51 (Delivery date) As shown in the attached sheet, contents of the investigation 1 Meibo Messho, page 7, line 6 [- is shown]. ” next (
Add the following sentence. [Furthermore, in Fig. 4, the transmission rod 7.7 that connects the transmission fan gear 3.3 of the l1tti (ltfl) and the rotation member 6 is made to have an angle in the forward travel and the position in the line of sight, and is engraved on the rotation member. An example is shown in which the point of force is changed. In this way, the distribution, movement, collection, etc. of the force point on the rotating member 6ζ are controlled by changes in Q, l OA B and the selection of the length of the transmission rod 7. Even if the forward travel and visibility do not match, differential interlocking is possible by selecting lOAB and the transmission culm length.Also, the rotation of the rotating member 6 is the drive source for the next transmission. It is also possible to sequentially interlock multiple transmissions so that secondary and tertiary simultaneous rotation motion can be obtained.'' 2. Figure 4 is an explanatory diagram of the forward stroke and double stroke Q angle of the transmission rod. (I will add Figure 4 on the attached sheet. Figure 4 People (7・″

Claims (2)

[Claims] (1) Arranged on the same shaft so that the toothless portion provided on the outer circumference is displaced in the circumferential direction (so that it meshes with the fixed pair of toothless teeth, the wheel, and the valley tooth portion of both toothless teeth wheels) and a pair of rotating members connected to the corresponding transmission sector gears at opposite positions sandwiching the shaft core through a transmission rod, which are attached to the same shaft (the same shaft), and are connected at opposite positions sandwiching the shaft center. A transmission characterized in that the tooth portions of the partially toothed gear wheel and the transmission fan-shaped 1D wheel are formed in a shape that prevents the beginning and end of meshing from mutually pulling. (2) In the teeth of the partially toothed toothed wheel and the transmission sector gear,
The first tooth in the rotation direction of the tooth on the drive side is low.