JPH0217743B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a rotary linear motion output unit,
A first rotary drive source that meshes with the rack gear is disposed between one rotational drive source and an output shaft having a rack gear and a gear, which are a group of endless teeth formed independently at predetermined pitches along the axial direction around the outer circumferential surface. By interposing a transmission mechanism having an output gear and a second output gear that meshes with the gear, rotational linear motion can be extracted from the output shaft using one rotational drive source made of a mainspring. In addition, the rotary drive source, output shaft, and transmission mechanism are assembled into a single case to form a unit, and can be freely incorporated into various toys as a single mechanical component.

<Conventional technology> When applying rotational linear motion to the output shaft, conventionally,
It was necessary to provide a drive source that provides rotational motion and a drive source that provides linear motion independently.

<Problems to be Solved by the Invention> As described above, conventionally, when imparting rotational linear motion to the output shaft, it is necessary to provide two drive sources: a drive source that imparts rotational motion and a drive source that imparts linear motion. Due to the heat, the overall structure became larger and
The problem was that it was complicated.

Therefore, an object of the present invention is to solve the above-mentioned conventional problems and to make it possible to extract rotary linear motion that reciprocates in opposite directions from two output shafts using a single rotary drive source. In addition to making it possible to make complex movements, the rotary drive source, output shaft, and transmission mechanism can be integrated into a single case to form a unit, and can be freely incorporated into various toys as a single mechanical component. It is an object of the present invention to provide a rotary linear motion output unit that can perform the following functions.

<Means for Solving the Problems> In order to solve the above-mentioned problems, the rotary linear motion output unit according to the present invention includes one rotary drive source and independent rotary linear motion output units at predetermined pitches along the axial direction around the outer peripheral surface of the rod-shaped base body. an output shaft having a rack gear formed of a group of endless teeth formed to a transmission mechanism having a first output gear that meshes with the gear to provide an axial rotational motion to the output shaft; and a second output gear that meshes with the rack gear to provide an axial linear motion to the output shaft; A rotary linear motion output unit incorporated in a rotary linear motion output unit, wherein the output shaft is provided with two output shafts, and each of the two output shafts is arranged side by side with a distance therebetween so as to be substantially parallel to each other. , at least one in the axial direction
an end thereof is led out to the outside of the case, and the second output gear is arranged to mesh with each of the rack gears provided on the output shaft and provide linear motion in mutually opposite directions to the output shaft. It is characterized by being

<Operation> The rotational output of the rotational drive source is transmitted to the first output gear via the transmission mechanism, and the meshing of the first output gear and the gear of the output shaft gives shaft rotational motion to the output shaft. It will be done.

On the other hand, the rotational output of the rotational drive source is transmitted to the second output gear via the transmission mechanism, and the meshing of the second output gear and the rack gear provides axial linear motion to the output shaft.

Here, the meshing between the first output gear and the gear on the output shaft causes slippage with respect to linear movement in the axial direction. On the other hand, unlike conventional plate-shaped rack gears, the rack gears of the output shaft that mesh with the second output gear are endless gears that are formed independently at predetermined pitches along the axial direction around the outer peripheral surface of the rod-shaped base. It is a rack gear consisting of a group of shaped teeth. For this reason, the first
Due to the meshing between the output gear and the gear on the output shaft,
When a rotational motion is applied to the output shaft, slippage occurs between the second output gear and the rack gear. Therefore, using the same rotational drive source, the meshing of the second output gear and the rack gear provides linear motion in the axial direction, while the meshing of the first output gear and the gear on the output shaft provides rotational motion. As the resultant output, rotational linear motion is obtained from the output shaft.

Two output shafts are provided, each of the two output shafts are spaced apart from each other so as to be substantially parallel to each other, and the second output gear is provided on the output shaft. They are arranged so as to mesh with each of the rack gears and provide linear motion in opposite directions to the two output shafts. For this reason, it is now possible to extract rotary linear motion that reciprocates in opposite directions from the two output shafts, and when incorporated into a toy, it is possible to perform extremely complex motion such as time lag motion. become able to.

Since at least one axial end of each of the two output shafts is led out to the outside of the case, the rotational linear motion and the reciprocating motion in the opposite direction of the output shaft can be freely utilized outside the case.

Moreover, the rotational drive source, output shaft, and transmission mechanism are
It is built into the case, and each of the two output shafts has at least one end in the axial direction led out to the outside of the case, so it can be integrated into a single mechanical component and can be freely incorporated into various toys. By freely utilizing the rotational linear motion and reciprocating motion of the output shaft in the opposite direction outside the case, it is possible to realize a toy with complex movements.

<Example> Fig. 1 is a plan sectional view of a rotary linear motion output unit according to the present invention, Fig. 2 is a sectional view taken along line A1- _A1 in Fig. ₁ , and Fig. 3 is a sectional view along line A1-A1 in Fig. ₁ . FIG. 4 is a sectional view taken along line A ₃ -A ₃ in FIG. ₁ . In the figure, 1 is a case, 2 is a rotational drive source consisting of a mainspring, 3A and 3B are output shafts, and 4 is a transmission mechanism consisting of a gear mechanism.

The case 1 is formed of a suitable material such as plastic into a box shape having side plates 101 to 104, and inside thereof, side plates 103 and 104 are formed.
Partition plates 105 and 106 are provided that extend parallel to.

As shown in FIG. 4, the rotational drive source 2 hooks one end 221 of the spring 22 to a shaft 21 fixedly attached to the case 1, and winds the spring 22 inside the ring-shaped case 23, so that the winding end 2
22 is fixed to a rotating shaft 24. A rotary operation knob 25 is fixed to the end of the rotary shaft 24 that is led out of the case 1 (see FIG. 1). Further, a gear 26 coupled to the transmission mechanism 4 is fixed to the rotation shaft 24 on the opposite side from the end where the rotation operation knob 25 is located.

The output shafts 3A and 3B are arranged substantially parallel to each other with a space between them, and both ends of each are rotatably fixed by side plates 101 and 102 of the case 1. Rack gears 34a, 34b and gears 35a, 35b are coaxially formed on each of the output shafts 3A, 3B. 5 is an enlarged view of the output shafts 3A and 3B, FIG. 6 is a cross-sectional view taken along the line _A4 - _A4 in FIG. 5, and FIG. 7 is a cross-sectional view taken along the line _A5 - _A5 in FIG.
Rack gears 34a, 34b consisting of a group of endless teeth 34a ₁ , 34b ₁ are formed around the outer peripheral surface of approximately half of 3a, 33b so as to be independent at a predetermined pitch _d1 along the axial direction z. , gear 35 coaxially with rack gears 34a, 34b on the other half.
a and 35b are formed. Rack gear 34a,
34b and the teeth 34 forming the gears 35a and 35b.
The number, pitch, outer diameter, etc. of a ₁ , 34b ₁ , 35a ₁ , 35b ₁ can be set arbitrarily. Moreover, the gear 35a,
35b may be formed integrally with the base bodies 33a, 33b on which the rack gears 34a, 34b are formed, or a gear formed separately from the base bodies 33a, 33b may be formed on the base body 3.
3a and 33b may be used as shafts. In addition,
31a and 31b are shafts, and 32a and 32b are gears.

The transmission mechanism 4 includes a rotary drive source 2 and output shafts 3A, 3.
A rotary drive system interposed between B and meshing with gears 35a and 35b to provide axial rotational movement to output shafts 3A and 3B, and a rotational drive system that meshes with rack gears 34a and 34b to provide axial linear movement to output shafts 3A and 3B. It consists of two systems: a linear drive system that provides The rotational drive system includes a gear 41 that meshes with a gear 26 that is fixed to the rotating shaft 24 of the rotational drive source 2, a gear 42 that is coaxially integrated with the gear 41, gears 43 and 44 that are coaxially integrated with the gears 41 to 42, and a gear 43. meshing gears 45,
A first output gear 4 that is coaxially integrated with the gear 45 and meshes with the gears 35a and 35b of the output shafts 3A and 3B.
6.

The linear drive system shares gears 41 and 42 with the rotary drive system, and has gears 47 and 47 that mesh with gear 44.
and a second output gear 48 which is coaxially integrated with the output shafts 3A and 3B and meshes with the rack gears 34a and 34b of the output shafts 3A and 3B.

49 is a ratchet mechanism, as shown in FIG. 3, a gear 49a that meshes with the gear 42, a gear 49b that is coaxially integrated with the gear 49a, a gear 49c that meshes with the gear 49b, a gear 49d that is coaxially integrated with the gear 49c, and a gear. Ratchet claw 4 that engages with 49d
9e.

Next, the operation will be explained.

The rotary operation knob 25 of the rotary drive source 2 is rotated in the direction of arrow A to contract the mainspring 22 and store power. The rotational output at this time is the rotating shaft 24,
The signal is transmitted from the gear 26 to the first output gear 47 via the gears 41, 43, 45, and 46, and the output gear 47 rotates, for example, in the direction of arrow _a1 (see FIG. 2). Then, the first output gear 47 and the output shaft 3
Due to the meshing of gears A and 3B with gears 35a and 35b, shaft rotational motion in the directions of arrows b ₁ and b ₂ is applied to output shafts 3A and 3B. Although the shaft rotation direction b ₁ of the output shaft 3A and the shaft rotation direction b ₂ of the output shaft 3B are the same direction, it is also possible to make them opposite to each other.

On the other hand, the rotational output of the rotational drive source 2 is
4. From gear 26 and gears 41 and 44, gear 47
The second output gear 48 rotates in the direction of arrow _c1 , for example. The engagement between the second output gear 49 and the rack gears 34a, 34b provides axial linear motion in the direction of the arrow _z1 or _z2 to the output shafts 3A, 3B. Direction of movement of output shaft 3A
z ₁ and the movement direction z ₂ of the output shaft 3B are opposite to each other.

1 and 2 show the positions of the output shafts 3A and 3B in a state where the mainspring 22 of the rotary drive source 2 is fully wound as described above.

Next, when the rotational driving force applied to the rotational operation knob 25 is released from the state shown in FIGS. 1 and 2, the force accumulated in the mainspring 22 causes the transmission mechanism 4 to move in the opposite direction. Rotationally driven. As a result, the output shafts 3A, 3B perform rotational linear motion in the opposite direction to that described above, returning to the original state shown by the dotted line in FIG.

Here, the first output gear 47 and the output shafts 3A, 3
The engagement with gears 35a and 35b of B is indicated by arrow z ₁
Or generate slippage for axial linear motion in the z ₂ direction.

On the other hand, the rack gears 34a, 34b of the output shafts 3A, 3B meshing with the second output gear 48 are
Unlike conventional plate-shaped rack gears, the rod-shaped base 33
Endless teeth 3 formed independently at a predetermined pitch _d1 along the axial direction around the outer peripheral surfaces of the teeth a and 33b.
This is a rack gear consisting of a group of 4a ₁ and 34b ₁ . Therefore, when the first output gear 47 and the gears 35a, 35b of the output shafts 3A, 3B give shaft rotational motion to the output shafts 3A, 3B, the second output gear 48 and the rack gears 34a, 34b Slippage occurs between the two.

Therefore, the second output gear 48 and the rack gear 34
The engagement with the first output gear 45 and the gears 35a and 35b provides linear motion in the axial directions z ₁ and z ₂ , while the engagement between the first output gear 45 and the gears 35a and 35b provides rotational motion. Rotational linear motion is obtained.

In addition, since output shafts 3A and 3B are provided, two
It is possible to obtain various types of rotational linear motion.

Further, the linear movement direction z ₁ of the output shaft 3A and the linear movement direction z ₂ of the output shaft 3B are opposite to each other. The direction of axial movement of the output shafts 3A, 3B can be switched between forward and reverse by winding and releasing the mainspring 22 of the rotary drive source 2. Therefore, a load is placed on one end side of the output shafts 3A and 3B, respectively,
When this load is driven by rotational linear motion of the output shafts 3A and 3B, a time lag operation can be performed in which each load is driven with a time difference.

FIG. 8 is a diagram showing an example of the use of rotational linear motion of the output shafts 3A and 3B.
-53 and gears 61-63 are provided coaxially at appropriate intervals, and gears 71-74 that can mesh with the rack gears 51-53 are arranged at appropriate intervals near the rack gears 51-53. Gears 81 to 83 that can mesh with the gears are arranged nearby at appropriate intervals.

When the output rotating shaft 3A or 3B performs a linear motion in the axial direction _z1 , the rack gears 51 to 53 and the gear 6
1 to 63 also move in the axial direction together with it. Depending on the positions of rack gears 51-53 and gears 61-63, gears 71-74 or gears 81-
83, a gear that meshes with the rack gears 51-53 or the gears 61-63 is selected. Therefore, each of the gears 71-74, 81-83 can be caused to perform a time lag operation according to the amount of movement of the output shafts 3A, 3B in the axial direction _z1 . From this, it is possible to obtain rotational output with a time difference.

<Effects of the Invention> As described above, according to the rotary linear motion output unit according to the present invention, the following effects can be obtained.

(a) A rotary drive source, a rack gear consisting of a group of endless teeth formed independently at predetermined pitches along the axial direction around the outer peripheral surface of a rod-shaped base body, and a rack gear coaxially integrated with the rack gear. a first gear which is interposed between the rotary drive source and the output shaft, and meshes with the gear of the output shaft to provide a shaft rotational motion to the output shaft;
A transmission mechanism having an output gear and a second output gear that meshes with the rack gear and provides axial linear motion to the output shaft are built into the case, so that one rotational drive source can be used. In addition to making it possible to extract rotational linear motion from the output shaft, the rotary drive source, output shaft, and transmission mechanism are integrated into one case to form a unit, and can be freely applied to various toys as one mechanical component. It is possible to provide a rotary linear motion output unit that can be integrated into the rotary linear motion output unit.

(b) Two output shafts are provided, and each of the two output shafts is spaced apart and substantially parallel to each other, and at least one axial end is led out of the case. The second output gear meshes with each of the rack gears provided on the output shaft, and is arranged so as to provide linear motion in opposite directions to the two output shafts. It is now possible to extract rotary linear motion that reciprocates in opposite directions from the output shaft, and when incorporated into toys, etc., the rotary linear motion output allows extremely complex motion such as time lag motion. units can be provided.

[Brief explanation of drawings]

Fig. 1 is a plan sectional view of the rotary linear motion output unit according to the present invention, Fig. 2 is a sectional view taken along line _A1 - _A1 in Fig. 1, and Fig. 3 is a cross-sectional view taken along line _A2 - _A2 in Fig. 1. Figure 4 is a sectional view taken along line _A3 - _A3 in Figure 1, Figure 5 is an enlarged view of the output shafts 3A and 3B,
Fig. 6 is a sectional view taken along the line A4- _A4 in Fig. ₅ , Fig. 7 is a sectional view taken along the line A5 _- A5 in Fig. ₅ , and Fig. 8 shows the output shaft 3A,
3B is a diagram illustrating an example of the use of rotational linear motion; FIG. 1...Case, 2...Rotary drive source, 3A, 3B
...Output shaft, 34a, 34b...Rack gear, 3
5a, 35b...Gear, 4...Transmission mechanism.

Claims (1)

[Scope of Claims] 1. A rotary drive source, a rack gear consisting of a group of endless teeth formed independently at predetermined pitches along the axial direction around the outer peripheral surface of a rod-shaped base body, and coaxially with the rack gear. a first output gear that is interposed between the rotary drive source and the output shaft and meshes with the gear of the output shaft to provide a shaft rotational motion to the output shaft; and a transmission mechanism having a second output gear that meshes with the rack gear and provides an axial linear motion to the output shaft, the output shaft having at least Two output shafts are provided, and each of the two output shafts is arranged so as to be spaced apart and substantially parallel to each other, and at least one end in the axial direction is led out to the outside of the case. A rotary linear motion output unit characterized in that the second output gear meshes with each of the rack gears provided on the output shaft and is arranged so as to provide linear motion in mutually opposite directions to the output shaft. .