Movable mechanical doll

A movable mechanical doll has a bottom seat and two legs upright formed on the bottom seat. A shoulder-arm part is mounted at tops of the legs, and has two arms respectively mounted at two sides of the shoulder-arm part. A housing covering the shoulder-arm part is pivotally mounted on the shoulder-arm part by a pivot pin. A driving assembly with a first motor is mounted in the housing to drive the housing to swing about the pivot pin. At the same time, the arms can be swung forwards and backwards. By this means, the movable mechanical doll can achieve an action of moving shoulders and arms.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention is related to a movable mechanical doll, and more particularly to a doll that has movable shoulders and arms driven by a mechanism and first motors.

2. Description of Related Art

Dolls have been a favorite toy for thousands of years. In conventional dolls, movable mechanical dolls are much more interesting than static dolls, because these movable mechanical dolls have movable body parts and can sing and speak.

A conventional movable mechanical doll which can move its shoulders and arms has such a complex structure that it is very convenient to assemble the doll and a manufacturing cost of the doll is high.

Therefore, the invention provides an improved movable mechanical doll to mitigate and/or obviate the aforementioned problems.

SUMMARY OF THE INVENTION

The main objective of the invention is to provide a movable mechanical doll which has a simple structure to achieve actions of moving its shoulders and arms.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIGS. 1-3 , a movable mechanical doll in accordance with the present invention has a bottom seat ( 10 ) in which a circuit board and a switch (not shown or numbered) are installed. Two legs ( 11 ) are upright formed on the bottom seat ( 10 ). A shoulder-arm part ( 20 ) is mounted at tops of the legs ( 11 ), and a housing ( 30 ) covering the shoulder-arm part ( 20 ). A head ( 40 ) is provide above the housing ( 30 ).

The housing ( 30 ) is composed of a front semi-housing ( 31 ) and a rear semi-housing ( 32 ), and has a neck opening ( 33 ) defined at a top thereof and two arm openings ( 34 ) respectively defined at two sides thereof. A neck part ( 50 ) extends from the neck opening ( 33 ), and two arms ( 29 ) respectively extends from the arm openings ( 34 ). A plurality of meshes (not numbered) is defined through the housing ( 30 ), so that the housing ( 30 ) has a low weight. A plurality of ribs (not numbered) is formed at inner walls of the housing ( 30 ) for reinforcing a strength of the housing ( 30 ).

Referring to FIGS. 2-4 , the shoulder-arm part ( 20 ) has a seat ( 21 ) mounted on the legs ( 11 ). Two pivoting ears ( 22 ) are formed at a center of the seat ( 21 ) and parallel to each other. The front and rear semi-housing ( 31 , 32 ) are pivotally mounted on the pivoting ears ( 22 ) by a pivot pin ( 23 ) inserted through the pivoting ears ( 22 ). The front semi-housing ( 31 ) and rear semi-housing ( 32 ) are pivotally mounted to the pivoting ears ( 22 ) by the pivot pin ( 23 ) extending through the housing ( 30 ). Two blocks ( 24 ), each with an inclined upper surface ( 241 ), are formed at two sides of the seat ( 21 ). A guide plate ( 25 ) is mounted at a rear side of the seat ( 21 ) and has an elongated slot ( 251 ) longitudinally defined through the guide plate ( 25 ). A driving assembly ( 26 ) is mounted on the rear semi-housing ( 32 ), and has a first motor ( 261 ) installed therein and controlled by the circuit board in the bottom seat ( 10 ), and a wheel ( 262 ) driven by the first motor ( 261 ) to rotate. A first lug ( 263 ) eccentric to the wheel ( 262 ) is formed at a surface of the wheel ( 262 ) facing the guide plate ( 25 ) and inserted in the elongated slot ( 251 ).

Two hinges ( 27 ) are mounted on the rear semi-housing ( 32 ) and adjacent to the arm openings ( 34 ), and each have a hole ( 271 ) facing the respective arm opening ( 34 ). Two arm joints ( 28 ) are pivotally mounted on the hinges ( 27 ) respectively, and each have a first shaft ( 281 ) abutting the respective inclined upper surfaces ( 241 ) and supported by the respective blocks ( 24 ), and a second shaft ( 282 ) inserted in the hole ( 271 ). An aperture ( 284 ) is defined at an outer side of the arm joint ( 28 ) and substantially aligned with the first shaft ( 281 ). A clamping member ( 283 ) is formed at the outside of the arm joint ( 28 ) and adjacent to the second shaft ( 282 ). The arms ( 29 ), each with an upper end (not numbered) inserted through the respective aperture ( 284 ), are respectively clamped by the clamping members ( 283 ) to mount at the outer sides of the arm joints ( 28 ).

A speaker ( 35 ) is mounted inside the front semi-housing ( 31 ) and controlled by the circuit board in the bottom seat ( 10 ) to sound.

The neck part ( 50 ) extending from the neck opening ( 33 ) has a gear seat ( 51 ) mounted on the housing ( 30 ). A second motor ( 52 ) is installed beside the gear seat ( 51 ) to drive a gear assembly (not shown or numbered) provided in the gear seat ( 51 ). A central tube ( 511 ) is formed at a bottom of the gear seat ( 51 ) and pivotally mounted between the pivoting ears ( 22 ) by the pivot pin ( 23 ) extending through the central tube ( 511 ). A first disk ( 53 ) with a central opening ( 531 ) is received in the gear seat ( 51 ). An axle ( 521 ) of the gear assembly extends through and engaged with the central opening ( 531 ) to drive the first disk ( 53 ) to rotate. Two second lugs ( 532 ) are formed at a top surface of the first disk ( 53 ). A second disk ( 54 ) is provided above the first disk ( 53 ), and has two arcuate slots ( 541 ) defined therethrough for the second lugs ( 532 ) respectively extending through the arcuate slots ( 541 ). A neck member ( 55 ) is secured on the second disk ( 54 ), and the head ( 40 ) is secured on the neck member ( 55 ). Referring to FIGS. 4-7 , When the first motor ( 262 ) is actuated to rotate the wheel ( 262 ), the first lug ( 263 ) is limited to move along the elongated slot ( 251 ), so that the driving assembly ( 26 ) and the housing ( 30 ) are swung about the pivot pin ( 23 ) to achieve an action of moving shoulders. At the same time, the hinges ( 27 ) are moved upwards or downwards. Under the gravities of the arm joints ( 28 ) and the arms ( 29 ), the arm joints ( 28 ) can be pivoted about the respective second shafts ( 2 , 82 ) in the hinges ( 27 ) and guided by the respective inclined upper surfaces ( 241 ). The arms ( 29 ) fastened on the arm joints ( 28 ) can be swung forwards and rearwards about the hinges ( 27 ) respectively to achieve an action of moving arms.

When the second motor ( 52 ) is controlled by the circuit board in the bottom seat ( 10 ) to actuated, the gear assembly along with the first disk ( 53 ) is driven to alternatively rotate clockwise and counter-clockwise. By the second lugs ( 532 ) extending through the arcuate slots ( 541 ), the second disk ( 54 ) and the neck member ( 55 ) are driven to rotate the head ( 40 ).

According to the present invention, the movable mechanical doll has a simple structure with a small quantity of elements, so that it is easy to assemble the movable mechanical doll with a low manufacturing cost.