JPH0425837B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a drive selectable unit spring box that can appropriately utilize a plurality of rotating shafts supported by a single unit box as drive shafts. .

(Prior Art) Examples of conventional unit spring boxes include those shown in FIGS. 5a, b, c, d, and e. This spring box includes a case 1 consisting of a first case member 3 and a second case member 12 that are detachably connected to each other, and each case member 3,
12, a plurality of gear groups supported by each case member 3, 12 and the partition plate 30, and a mainspring 2 that drives these gear groups.
It is roughly composed of 0.

The first case member 3 includes a mainspring 20 stored and held in the mainspring storage section 4, a shaft 21a that is engaged and fixed to a gear support end 20a in which the inner end of the mainspring 20 is curved, and a large-diameter gear section. 21b and a small-diameter gear portion 21c integrated on the same axis, and a long hole 5 formed adjacent to the outside of the partition wall 4a that defines the mainspring storage portion 4. It also has a shaft 22a supported so as to be movable in the vertical direction, a large diameter gear part 22b and a small diameter gear part 22c coaxial with the shaft 22a, and the small diameter gear part 22c meshes with the large diameter gear part 21b of the drive gear 21. 1st
gear 22 and a bearing portion 6 located below the elongated hole 5.
, bearing parts 7 and 8 that rotatably support the drive shaft 23 and axle 24 , locking recesses 9 a and 9 b formed in the side peripheral wall of the first case member 3 , and the first case member 3 . Connecting rod-shaped members 10a, 10b, and 10c protruding from the opening-side peripheral end surface are provided (FIGS. 5a and 5b). The shaft 22a of the gear 22 is
When the drive gear 21 rotates in the winding direction indicated by the arrow A, it moves upward within the elongated bearing 5 and is disengaged from the large diameter gear 21b, while the drive gear 2
1 rotates in the unwinding direction shown by arrow B, it is configured to move downward within the bearing portion 5 and mesh with the large diameter gear 21b.

The partition plate 30 has an opening 31 through which the small diameter gear of the drive gear 21 projects, and a shaft 40a that is connected to the shaft 40a by the bearing portion 6.
an opening 32 that supports the second gear 40 which is rotatably supported; axle openings 33, 34 through which the axles 23, 24 are inserted; and connecting rod-shaped members 10a, 1.
0b, 10c insertion openings 35a, 35b, 35
c, a long hole 36 in which the shaft 22d at the other end of the first gear 22 is movably and rotatably supported, a bearing portion 37 that supports the third gear 41, and the like. The second gear 40 includes a large-diameter gear 40b and a small-diameter gear 40c that are coaxially integrated with the shaft 40a, and the small-diameter gear 40c is the large-diameter gear of the first gear 22 in the first case member 3. 22b, and also meshes with an axle gear 23a coaxially integrated with the drive shaft 23. The third gear 41 is a shaft 41 rotatably supported in the hole 37 of the partition plate 30.
a, and a gear portion 41b that is coaxial with the shaft 41a and meshes with the large diameter gear 40b of the second gear 40 and the small diameter gear 21c of the drive gear 21.

The second case member 12 includes a bearing portion 13 through which the axles 23 and 24 are inserted, as shown in FIGS.
14, and connecting rod-shaped members 10a, 10b, 10c
holes 15a, 15b, 15c in which are mounted, a bearing portion 16 that rotatably supports the shaft 21d at the bottom end of the drive gear 21, and a hole 17 that rotatably supports the shaft at the other end of the second gear 40. and hook members 18a, 18b that removably engage with the locking protrusions in the locking recesses 9a, 9b of the first case member.

The meshing state of each gear in a state in which such various members are assembled is as shown in FIG. 5e.

In the above configuration, when the drive shaft 23 is rotated in the A direction, the second gear 4 is rotated from the axle gear 23a.
0, the third gear 41, and the small diameter gear 21c of the drive gear, and the mainspring 20 is wound up.
At this time, the drive gear 21 rotates in the winding direction A, so the shaft 22a of the first gear 22 moves upward in the elongated hole 5 and is out of mesh with the large diameter gear 21b. Therefore, the drive torque from the drive gear 21 in the A direction is not input to the axle gear 23a via the first gear 22 and the second gear 40.

When the force that rotates the drive shaft 23 in the winding direction is released, the mainspring 20 is unwound, so the drive gear 21 is rotated in the unwinding direction B, and the first gear 22 is displaced downward within the bearing portion 5. drive gear 2
It becomes in mesh with the large diameter gear 21b of No. 1. As a result, the driving force from the mainspring 20 is transferred to the driving gear 21,
The signal is transmitted to the axle gear 23a via the first gear 22 and the second gear 40, and drives the drive shaft 23 to rotate in the forward direction B.

However, in the case of the conventional unit spring box mentioned above, only the integrated rotating shaft was driven by receiving the driving force from the mainspring. It can only achieve running, and there are limits to its functionality as a toy.

(Object of the Invention) The present invention solves the above-mentioned drawbacks, allows a single unit box to support a plurality of rotation axes, and allows these rotation axes to be arbitrarily selected for driving.
The purpose of this invention is to provide a unit spring box with selectable drives that can improve the functions of the unit spring box and achieve versatility.

(Means for Achieving the Object) In order to achieve the above object, the drive selectable unit spring box according to the present invention stores a spring, a drive shaft, and a gear group in a box case,
The unit spring box that transmits the driving force of the mainspring to the drive shaft via a group of gears is characterized by comprising the following constituent elements.

(a) The box case is provided with a rotating shaft having gears in parallel with the drive shaft. (b) The box case is formed of two case members connected via a partition plate, and Bearing portions for selection gears are formed facing each other on the side walls of the partition plate and one of the case members. (c) The gears supported by the selection bearing portions are:
Arranged so as to mesh with the gear of the gear group and the gear of the rotating shaft (effects and effects of the invention) According to the configuration, the driving force of the mainspring is normally transmitted to the drive shaft via the gear group. However, if the gear is mounted on the selected bearing, the gear will be
Since it meshes with the gear of the gear group and the gear of the rotating shaft, the driving force of the mainspring is transmitted to the rotating shaft, so this rotating shaft can also be used as a driving shaft. Further, by providing a plurality of bearings and rotating shafts for selection gears, by changing the position of the gears, the driving form can be varied in a variety of ways, and the device can be used for a variety of purposes.

In addition, since the bearing portion of the selection gear is formed to face the partition plate and the side wall of one of the case members, in order to attach or remove the selection gear, it is only necessary to remove one of the case members, and the box case There is no need to disassemble the entire unit, so it is easy to attach and detach.

(Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In FIGS. 1, 2, and 3, reference numeral A indicates a unit spring box according to the present invention. In this unit spring box A, the same members as in the prior art example are designated by the same reference numerals, and explanations thereof will be omitted.

First case member 3 constituting the box case
and the second case member 12 has a bearing portion 5 for selection.
0 and 51 are formed, and the partition plate 30 and the second case member 12 are provided with bearing parts 52 and 53 for gears.
is formed.

Therefore, as shown in FIGS. 2 and 3a, for example, the rotating shaft 24 is provided with a gear 24a, and the rotating shaft 54 with the gear 54a is supported on the bearing parts 50, 50, so that the gear 54a and the gear 40 are connected to each other. Further, the gear 55 is made to be supported by the bearing parts 52, 52, and the gear 55 is made to mesh with the gears 54a, 24a of the rotating shafts 54 and 24. As a result, the driving force of the mainspring 20 is transmitted from the third gear 41 to the drive shaft 23 via the second gear 40, and at the same time is transmitted to the rotating shaft 54, and furthermore, the rotation of the rotating shaft is transmitted from the gear 55 to the rotating shaft 23. 24. Therefore, both the rotating shafts 24 and 54 become drive shafts, and when this unit spring box A is used as a driving device for a traveling toy, six wheels can be driven. If you leave it free, you can use four-wheel drive. Furthermore, as shown in FIG. 4, a form-changing toy (not shown) that changes the form of the unit spring box A into a running toy form and a robot form.
It is also possible to select one rotary shaft 23 to be used for traveling and the other rotary shaft 24 to be used as a shaft for driving an arm or the like in a robot. In addition, since the bearing portions 52, 52 of the gear 55 are provided on the partition plate 30 and one of the case members 12, there is no need to disassemble the entire box case when attaching and detaching, making it easy to attach and detach. can.

Further, as shown in FIG. 3b, the drive shaft 23 is supported by the bearings 51, 51, the gear 55 is supported by the bearings 53, 53, and the drive shaft 23 and the gear 40 are connected to each other.
When interposed between the drive shaft 23 and the rotation shaft 54
As the distance between the mainspring and the mainspring is changed, the driving torque of the mainspring is transmitted only to the drive shaft 23 and the rotation shaft 54, and therefore, a use other than that described above becomes possible. Of course, in this case as well, by further bearing a separate gear 56 on the bearing parts 50, 50, all of the rotating shafts 23, 24, 25 can be driven, and by allowing any of them to rotate freely, the driving shaft It is also possible to reduce

[Brief explanation of drawings]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is an exploded perspective view thereof, Figs. It is an explanatory perspective view, and FIGS. 5a, b, c, d, and e are explanatory views of each component of the conventional example. Code 1...Case, 3...First case member,
5, 6...Bearing section, 12...Second case member,
13, 14...bearing section, 23...rotating shaft, 24,
54... Rotating shaft, 40, 55, 56... Gear.

Claims (1)

[Scope of Claims] 1. A unit spring box that houses a spring, a drive shaft, and a gear group in a box case and transmits the driving force of the spring to the drive shaft via the gear group, which consists of the following structural requirements: A unit spring box with selectable drive features. (a) The box case is provided with a rotating shaft having gears in parallel with the drive shaft. (b) The box case is formed from two case members connected via a partition plate, Bearings for selection gears are formed facing each other on the partition plate and the side wall of one of the case members. (c) The gears supported by the selection bearings are
be arranged so as to mesh with the gears of the gear group and the gears of the rotating shaft;