JPH062717Y2 - Drive unit for traveling toys - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention stores the force on the mainspring by pressing the axle against the floor and pulling it backward, and when the power is released, it starts forward by the release force of the mainspring. A drive unit for a traveling toy that is used as a drive source for a traveling toy that is designed so that the drive shaft operates at a low speed from the beginning to the middle of the drive and at a high speed after that. It is a thing.

(Prior Art) Conventionally, a floor-winding type (Japanese Patent Laid-Open No. 60-261486) in which slow / fast speed switching operation is performed by a manual switching lever, and a low-speed, endurance running type by a manual winding spring (actually opened) No. 60-175299), or a type having a contacting / separating means by a coil spring for idling when an unreasonable force is applied when the mainspring is pressed against the floor (see Japanese Utility Model Laid-Open No. 59-196295). Is known.

In addition, a type that uses a cam to operate at high speed midway (No. 62-87699 and No. 62-62)
No. 92897) is known.

(Problems to be solved by the invention) The first one described in the above conventional technique is inconvenient because it requires a troublesome use of manually switching the switching lever, and the second one is a manually wound one. However, it is not suitable for floor-wound ones because it causes gear breakage, and the third one has a complicated structure because the contacting / separating means uses a coil spring and is compact. There was a defect such as being disadvantageous in conversion.

Further, the fourth one has a complicated structure and has a defect that the operation is uneasy.

An object of the present invention is to provide a drive unit for a low speed, endurance type floor-wound running toy which does not have the above-mentioned defects and which runs at a high speed from the middle.

(Means for Solving the Problems) In order to achieve the above object, the drive unit for a traveling toy according to the present invention is made of hard plastic having a slight elasticity and is provided on the left and right sides of the intermediate wall (1) with left gear chambers (2). And a right side gear chamber (3) to form a gear box (4), and drive the drive shaft (5) to the rear of the gear box (4) across the left and right gear chambers (2) (3). The drive gear (7) is non-rotatably fixed to a portion of the drive shaft (5) that is present in the right side gear chamber (3) so that the drive shaft (5) can rotate freely, and the left and right gear chambers can be located in front of the gear box (4). (2) The support shaft (8) is rotatably skewed while crossing the support shaft (8), and the mainspring drum (9) centered on the support shaft (8) is inside the outer wall of the right gear chamber (3). With bearing shaft (8)
The winding gear (11) is rotatably supported by the winding gear (11), the winding shaft (13) is provided on the right side surface of the winding gear (11), and the mainspring (15) is wound around the winding shaft (13). Moreover, the outer and inner ends of the mainspring (15) are locked to the drum (9) and the winding shaft (13), and further the winding gear (11).
The first transmission gear (16) is installed on the left side of the
In (3), a second transmission gear (17), which is always meshed with the drive gear (7), is rotatably supported between the drive gear (7) and the first transmission gear (16) to form a second transmission. When the mainspring (15) is wound between the gear (17) and the first transmission gear (16), these mesh with the first and second transmission gears (16) and (17), and when released, the first transmission gear A first clutch gear (19) which is disengaged from the (16) is provided, and a third transmission gear (22) is provided on the side surface of the second transmission gear (17), and the third transmission gear (22) and the winding A second clutch that engages with the third transmission / coupling gears (22) (11) when released to the mainspring (15) from the engagement gear (11) and disengages from the engagement gear (11) during winding Gear (23) is installed, and an escape wheel is installed in the rear part of left side gear chamber 2.
The escapement type speed reducer (29) consisting of (27) and pallet (28) is supported, and the fourth transmission gear is mounted on the same shaft as the escape wheel (27).
(30) is provided, and between the fourth transmission gear (30) and the second transmission gear (17), a small-diameter fixed gear (40) that constantly meshes with the second transmission gear (17) and the fourth transmission gear (17). A third clutch gear (31) consisting of a large-diameter movable gear (41) slidingly engaged with a third idle shaft (33) that meshes with and disengages from the gear (30) is provided, and a fixed gear (40) and Attach the end faces of the bosses (42) (43) of the movable gear (41) to the movable gear (4
The first transmission gear (16) is integrally provided with a fifth transmission gear (35) on the left side surface of the first transmission gear (16), and the fifth transmission gear (35) is connected to the left gear. It is located in the chamber (2) through the through hole (36), and meshes with the fifth transmission gear (35) between the fifth transmission gear (35) and the third clutch gear (31). The fan gear (37) to be disengaged is mounted via the support shaft (38), and a projection (39) is provided on the outer peripheral edge of the fan gear (37).
(39) is the third clutch gear (31) and the fourth transmission when the sector gear (37) is swung downward by the rotation of the fifth transmission gear (35) when the mainspring (15) is released. Similarly, when the engagement with the gear (30) is set to the disengaged state and the fifth transmission gear (35) is rotated when the mainspring (15) is wound, the gear is disengaged from the third clutch gear (31) and the third clutch gear (31). 4 The transmission gear (30) is restored to the meshed state, and a U-shaped cutting line (49) is formed on the wall surface of the gear box (4) at a position corresponding to the outer surface of the movable gear (41).
Also, the outer surface of the movable gear (41) is provided by providing projections (50) for press-contacting the outer surface of the movable gear (41) at the tip of the tongue-shaped portion surrounded by the U-shaped cutting line (49). An elastic piece (46) (46) 'is formed by applying a pressing force to the bosses (42) (43) so that the end faces of both bosses (42) (43) are in a pressure contact state. Occasionally, the meshed state is maintained, and when abnormal, the movable gear (41) resists the pressing force of the elastic pieces (46) (46) 'and the third floating shaft.
(33) Jagged (4
4) (45) is provided.

(Operation) Since the present invention has the above-described structure, first, the drive wheels are
(6) When pushing (6) 'against the floor and moving it backward, the drive wheels (6), (6)', drive shaft (5) and drive gear (7) rotate clockwise in FIG. Then, the second transmission gear (17) is rotated clockwise in the same figure, and the second transmission gear (17) is rotated counterclockwise in the same figure. Following the rotation of the second transmission gear 17, the first clutch gear (19) meshes with the first transmission gear (16),
Due to this meshing, the rotational force of the second transmission gear (17) is transferred to the winding gear (1
It is transmitted to 1) and the mainspring (15) is accumulated. If the whole is left on the floor in this accumulated state, the releasing force of the mainspring (15) causes the winding gear (11) to rotate in the clockwise direction in FIG. 2 to move the second clutch gear (23). It meshes with the third transmission gear (22), and by this meshing, the rotational force of the winding gear (11) is changed to the second transmission gear (1).
7) Rotate clockwise in the figure and drive gear
(7), the drive shaft (5) and the drive wheel shafts (6), (6) 'are intended to rotate at high speed in the walking direction, and the second transmission gear (1
During the clockwise rotation of 7), the third clutch gear (31) meshes with the fourth transmission gear (30) following the rotation. By this meshing, the rotational force of the winding gear (11) is transmitted to the escape wheel (27), and the escape wheel (27) rotates at a low speed (deceleration) while being braked by the pallet fork (28). That is, the low speed rotation of the escape wheel (27) causes the second transmission gear (17) to be braked in the low speed rotation state, and the drive gear which is about to rotate at the high speed.
(7), the drive shaft (5) and the drive wheels (6), (6) 'are slowed down so that the entire vehicle runs at slow speed. In addition, at the time of the above-mentioned power accumulation operation, the fifth transmission gear (35) together with the winding gear (11).
Swings the sector gear (37) upwards, and this sector gear
(37) starts to swing downward due to the rotation of the fifth transmission gear (35) at the same time when the slow speed running is started. Thus, when the fan gear (37) is swung downward while releasing the mainspring, the projection (39) moves the third clutch gear (31) to the fourth position.
Remove from transmission gear (30). In other words, the speed reducer (29) consisting of the escape wheel (27) and the pallet fork (28) is separated from the system that tries to rotate at high speed during traveling, and after that, the whole continues high-speed traveling. It was done.

(Effects of the Invention) According to the present invention, it is possible to provide a floor-wound drive unit for a traveling toy with a configuration that does not have a manual switching lever, and use the wall surface of the gear box (4) without using a coil spring. The purpose of the invention is to provide a drive unit for a low-speed, endurance-type floor-wound traveling toy that can realize a separating means and does not have the defects of the above-described conventional example and that can travel at a high speed from a new way. It has excellent effects that can be achieved completely.

(Embodiment) In the embodiment shown in the figure, a gear box (4) having a left side gear chamber (2) and a right side gear chamber (3) on the left and right sides of the intermediate wall (1) is made of a hard plastic having a slight elasticity. The drive shaft (5), which crosses both left and right gear chambers (2) and (3) at the rear of this gear box (4) and has both left and right ends protruding to the left and right sides of the gear box (4), is free to rotate. Drive the drive wheels (6) and (6) 'at the left and right ends of the drive shaft (5), and the drive gear (7) at a location in the right gear chamber (3) of the drive shaft (5). The bearing shafts (8) are fixed non-rotatably and cross the left and right gear chambers (2) (3) in the front part of the gear box (4) so that both left and right ends do not extend to the left and right sides of the gear box (4). The mainspring drum (9) centering on the support shaft (8) is integrally provided inside the outer wall of the right gear chamber (3) so as to be rotatable and skewered.
A large number of engaging recesses (10) are provided around the inner peripheral surface of (9), and the winding gear (11) is rotatably supported on the support shaft (8). A winding shaft (13) with a cut (12) is integrally provided on the right side surface, and a mainspring (15) having a locking ball (14) at the outer end is wound around the winding shaft (13) and engaged. Insert the stop ball (14) into the engaging recess
(10) as an alternative and cut the inner end of the spring (15) (1
2), and then the 1st gear (1
6) is integrally provided coaxially, and the drive gear (7) is located between the drive gear (7) and the first transmission gear (16) in the right gear chamber (3).
The second transmission gear (17), which always meshes with (7), is rotatably supported, and when the mainspring (15) is wound between the second transmission gear (17) and the first transmission gear (16). A first clutch gear (19) that meshes with the first and second transmission gears (16) and (17) and disengages from the first transmission gear (16) when released is provided with a slot (20) and a first idle shaft (21). ), And a third transmission gear (22) is integrally provided on the side surface of the second transmission gear (17) to provide the third transmission gear (22).
When the mainspring (15) is disengaged from the winding gear (11), the third transmission and winding gears (22) and (11) are engaged with each other, and the winding gear (11) is disengaged from the winding gear (11) when winding. The second clutch gear (23) is mounted via the slot (24) and the second idle shaft (25). Furthermore,
An escape wheel (27) and an ankle (28) in the rear part of the left gear chamber (2)
Bearing an escapement type speed reducer (29) consisting of the fourth transmission gear 30 coaxially with the escape wheel (27), and connecting the fourth transmission gear (30) and the second transmission gear (17). In the meantime, when releasing the mainspring (15), these 4th and 2nd transmission gears
The third clutch gear (31) that meshes with (30) and (17) and disengages from the fourth transmission gear (30) at the time of winding is provided with the slot (32) and the third idle shaft.
And the fifth transmission gear (35) is integrally provided on the left side surface of the first transmission gear (16), and the fifth transmission gear (35) is installed in the left gear chamber (2). ) Through the through hole (36), and the fifth transmission gear (35) and the third clutch gear (3
A fan-shaped gear (37) that meshes with and disengages from the fifth transmission gear (35) is mounted via a support shaft (38) between the same and the fan-shaped gear.
The protrusion (39) on the outer peripheral edge of (37) is integrally provided, and the protrusion (39) is downwardly moved by the rotation of the fifth transmission gear (35) when the fan gear (37) releases the mainspring (15). When swung, the engagement between the third clutch gear (31) and the fourth transmission gear (30) is set to the disengaged state, and the fifth transmission gear (3
When the third clutch gear (31) and the fourth transmission gear (30) are swung upward by the rotation of (5), the meshing state is restored.

The third clutch gear (31) is a small diameter fixed gear (40) that always meshes with the second transmission gear (17) and a third idle shaft (33) that meshes with and disengages from the fourth transmission gear (30). And the fixed gear (40) and the bosses (42) (43) of the movable gear (41) are connected to the end face of the movable gear (41). The bosses (42) and (43) are engaged with each other at the time of abutment and disengaged at the time of abutment (44) (4).
5) is provided so that the movable gear (41) is constantly subjected to the pressing force by the elastic pieces (46) (46) ′ provided on the wall surface of the gear box (4). Since it is configured, the meshing state is maintained in the normal state, and the movable gear (41) is movable on the third floating shaft (33) against the pressing force of the elastic pieces (46) (46) 'in the abnormal state. Therefore, the slip state is exhibited to function to avoid the abnormality.

Further, in the figure, (47) is an elastic leg integrally provided on the outer periphery of the fan-shaped gear (37), which is engaged with a pin (48) provided on the intermediate wall (1) and is engaged with the fifth transmission gear (35). ) To assist the engagement of the sector gear (37).

[Brief description of drawings]

FIG. 1 shows an embodiment of a drive unit for a traveling toy according to the present invention. FIG. 1 is an overall plan view and FIG. 2 is FIG.
FIG. 3 is a sectional view taken along line A, FIG. 3 is a sectional view taken along line A′-A ′ of FIG. 1, and FIG. 4 is a sectional view taken along line A ″ -A ″ of FIG. (1)… Intermediate wall, (2)… Left gear chamber, (3)… Right gear chamber, (4)
… Gearbox, (5)… Drive shaft, (6) (6) ′… Drive wheels,
(7) ... Drive gear, (8) ... Bearing shaft, (9) ... Spring drum,
(10) ... Engagement recess, (11) ... Winding gear, (12) ... Notch, (13) ...
Winding shaft, (14) ... Locking ball, (15) ... Mainspring, (16) ... First transmission gear, (17) ... Second transmission gear, (19) ... First clutch gear,
(20) ... slot, (21) ... first idle shaft, (22) ... third transmission gear, (23) ... second clutch gear, (24) ... slot, (25) ...
Second idle shaft, (27) ... escape wheel, (28) ... ankle, (29) ...
Reduction gear, (30) ... fourth transmission gear, (31) ... third clutch gear, (32) ... slot, (33) ... third idle shaft, (35) ... fifth transmission gear, (36) ... communication Hole, (37)… fan gear, (38)… spindle, (3
9) ... protrusion, (40) ... fixed gear, (41) ... movable gear, (42) (43)
... Boss, (44) (45) ... Jagged, (46) (46) '... Elastic piece, (4
7) ... elastic legs, (48) ... pins, (49) ... cut lines.

Claims (1)

[Scope of utility model registration request] 1. A gearbox (4) comprising a left-side gear chamber (2) and a right-side gear chamber (3) on the left and right sides of an intermediate wall (1) made of a hard plastic having a slight elasticity.
In the rear part of (4), the drive shaft (5) is slidably passed through the left and right gear chambers (2) and (3), and the drive shaft (5) is in the right gear chamber (3). The drive gear (7) is non-rotatably fixed to the existing location, and the bearing shaft (8) is rotatably inserted in the front part of the gear box (4) across the left and right gear chambers (2) and (3). In addition, a spring drum (9) centered on the bearing shaft (8) is provided inside the outer wall of the right gear chamber (3), and the winding gear (11) is rotatably supported on the bearing shaft (8). Then, install the winding shaft (13) on the right side surface of the winding gear (11) and set the mainspring around the winding shaft (13).
(15) is wound and the outer and inner ends of the mainspring (15) are locked to the drum (9) and the winding shaft (13), and the left side surface of the winding gear (11) has a first transmission gear. (16) is installed and right side gear chamber
In (3), a second transmission gear (17), which is always meshed with the drive gear (7), is rotatably supported between the drive gear (7) and the first transmission gear (16) to form a second transmission. When the mainspring (15) is wound between the gear (17) and the first transmission gear (16), these mesh with the first and second transmission gears (16) and (17), and when released, the first transmission gear A first clutch gear (19) which is disengaged from the (16) is provided, and a third transmission gear (22) is provided on the side surface of the second transmission gear (17), and the third transmission gear (22) and the winding A second clutch that engages with the third transmission / coupling gears (22) (11) when released to the mainspring (15) from the engagement gear (11) and disengages from the engagement gear (11) during winding The gear (23) is installed, and further, the escapement type speed reducer (29) consisting of the escape wheel (27) and the pallet fork (28) is supported in the rear part of the left side gear chamber (2), and the escape wheel (27) is The fourth transmission gear (30) is provided on the same shaft and the fourth transmission gear (30) and the second
Between the transmission gear (17), a small diameter fixed gear (40) that always meshes with the second transmission gear (17) and a third idle shaft (33) that meshes with and disengages from the fourth transmission gear (30). The third clutch gear (31) consisting of the combined large diameter movable gear (41) is installed, and the fixed gear (40)
And the end faces of the bosses (42) (43) of the movable gear (41)
Sliding of (41) makes it possible to abut / separate freely.
A fifth transmission gear (35) is integrally provided on the left side surface of the transmission gear (16), and the fifth transmission gear (35) is provided in the left gear chamber (2) with a through hole (36).
Through the fifth transmission gear (35) and the above-mentioned third transmission gear (35).
The fifth transmission gear (35) meshes with the clutch gear (31).
The fan gear (37) to be disengaged is mounted via the support shaft (38), and a projection (39) on the outer peripheral edge of the fan gear (37) is provided, and the projection (39) is the fan gear (37). ) Is swung downward by the rotation of the fifth transmission gear (35) when the mainspring (15) is released, the meshing between the third clutch gear (31) and the fourth transmission gear (30) is released. Similarly, when the fifth transmission gear (35) is rotated by the rotation of the mainspring (15) when the mainspring (15) is swung upward, the third clutch gear (31) and the fourth transmission gear (30) are engaged with each other. The gear box (4) is restored to its original state, and a U-shaped cutting line (4
The movable gear (41) is provided with a protrusion (50) which is pressed against the outer surface of the movable gear (41) at the tip of the tongue portion surrounded by the U-shaped cutting line (49). An elastic piece (46) (46) 'is formed to apply a pressing force to the outer side surface to bring the end faces of the both bosses (42) (43) into a pressure contact state, and the end faces of both bosses (42) (43) are formed. In the normal state, the meshed state is maintained, and in the abnormal state, the movable gear (41) resists the pressing force of the elastic pieces (46) (46) 'and the third floating shaft.
(33) Jagged (4
4) A drive unit for a traveling toy, which is provided with (45).