JP2002195149A - Power spring mechanism and equipment therewith - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set damping characteristics regardless of a structure and material of a damping part and to largely adjust a damping force. SOLUTION: A drive force storing part formed by a power spring 11 and the damping part for generating a rotation resistance are connected via a speed- increasing gear train formed by a second gear 102, a third gear 103 and a fourth gear 104. Since rotation of the drive force storing part is increased in speed by the speed-increasing gear train and transmitted to the damping part, the damping force can be increased and a physical relationship of the drive force storing part with the damping part can be arranged in a flatly different position according to a structure of the speed increasing gear train.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to relates to a mainspring mechanism and apparatus including the same, an automatic feeding mechanism of the lid or housing part, on the structure of a preferred drive mechanism as retractable mechanism, and the like.

[0002]

2. Description of the Related Art Generally, a small mainspring mechanism is used in various fields as a driving source for obtaining driving force of various articles. Usually, a spiral spring, which is called a barrel, accommodates a spiral spring, and a rotary shaft connected to the inner end of the spring is supported at the center of the spiral case. In this case, there is a case where only the rotating shaft is used as the sole driving force extracting unit. For example, one of the rotating shaft and the mainspring case is used as the input shaft, and the other is used as the output shaft.

In the above-described mainspring mechanism, the driving force obtained after the mainspring is tightened generally increases or decreases in accordance with the degree of tightening of the mainspring. The driving speed changes according to the degree of tightening. Therefore, Japanese Patent Publication No. 54-31146
As described in the publication, a brake plate rotatably housed in a brake case filled with a fluid substance such as liquid or powder is connected to one end of the spring, and the brake plate is actuated by the braking action of the brake plate. In some cases, a structure (governing mechanism) that reduces fluctuations in driving force and changes in driving force or driving speed is used.

Further, to simplify the structure by reducing the number of components, downsizing, improved mainspring mechanism thereby reducing the manufacturing cost are also known.

[0005]

However, in the mainspring mechanism having the above-mentioned braking action, the braking characteristics are substantially determined by the structure of the braking portion and the material of the fluid substance, so the degree of freedom in the structure of the braking portion and the material selection. And it is difficult to adjust the braking characteristics of the braking unit once configured.

Further, the conventional mainspring mechanism mainspring, the mainspring case, the rotating member, brake plates, but has a structure containing a braking case, it is the individual components which are arranged so as to overlap in plan view In addition, there is also a problem that the storage property is poor when incorporated in a device or the like.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to set the braking characteristics irrespective of the structure and material of the braking portion and to greatly adjust the braking force. To provide a mainspring mechanism. Another object of the present invention is to realize a mainspring mechanism capable of reducing the thickness without losing compactness by enabling the positional relationship between the driving force accumulating unit and the braking unit to be changed.

[0008]

In order to solve the above-mentioned problems, a mainspring mechanism of the present invention includes a mainspring that is wound by a tightening force and accumulates a restoring force, and a mainspring receiving portion that stores the mainspring. A driving mechanism including a driving force accumulating unit, a rotating member connected to the other end of the mainspring, and a braking unit that generates a braking force against the reciprocal movement between the mainspring housing and the rotating member. Power transmission means is provided between the driving force accumulating unit and the braking unit for transmitting rotation at an increased or reduced speed.

According to the present invention, the power transmission means for transmitting the rotation at the increased speed or the reduced speed is provided between the driving force accumulating portion and the braking portion. The braking force can be increased or decreased by changing the reduction ratio. In addition, since the braking force can be adjusted by the configuration of the power transmission means, the range of selection of the structure of the braking unit, the material used for the braking unit, and the like is widened. Furthermore, for the same reason, the degree of freedom of the shape and size of the braking unit is increased, and the relative positional relationship between the driving force accumulation unit and the braking unit can be set more freely due to the presence of the power transmission means. Will be possible. For example, by arranging such brake driving force storage unit do not overlap, it becomes possible to reduce the thickness of the mainspring mechanism. In addition, it is possible to perform assembly while adjusting the braking force of the braking unit.

Here, the power transmission means includes a gear, a gear train having a plurality of gears, a pulley and a transmission belt, and the like. Can be used.

The spring includes a conston spring and a coil spring which are used in a manner to take in and out energy with a change in the tightening state. The connection between the mainspring and the mainspring receiving portion and the center member may be in any mode such as pressure welding, hooking, welding, and the like.

In the present invention, it is preferable that the power transmission means is configured to increase the speed of rotation of the driving force accumulating section and transmit the rotation to the braking section.

According to the present invention, since the braking force can be increased in accordance with the speed increase ratio of the power transmission means, it is possible to enhance the braking effect of the braking section, and the configuration of the braking section is less restricted. This makes it possible to use a wider range of structures and materials. In addition, since the rotational driving speed of the driving force accumulating unit is smaller than the rotational speed of the braking unit, it is easy to control the output rotation of the driving force accumulating unit, so that the driving speed can be controlled with higher precision. become.

In the present invention, the braking portion is provided with a flowable substance and a brake which comes into contact with the flowable substance, and the braking force is generated by a rotational resistance of the brake against the flowable substance. It is preferred that

According to the present invention, it is possible to obtain a high braking force by the characteristics of the flow material (viscosity), also,
Since the braking force has a positive correlation with the rotation speed of the braking body, it is easy to make the driving speed by the driving force accumulation unit constant. Further, the braking characteristics can be varied in various ways depending on the characteristics of the fluid material. In addition, since a relatively small amount of the fluid substance is required, the size of the braking unit can be reduced.

In the present invention, it is preferable that the braking portion is provided with a braking member that generates the braking force due to its rotational resistance, and the braking member is provided with a blade that receives gas resistance.

According to this invention, since the blade when the braking member is rotated is subjected to gas resistance, rotational resistance to the braking body caused by the gas drag, which is the braking force. In particular, when the power transmission means is configured to increase the rotation of the driving force accumulating unit and transmit the rotation to the braking unit, a sufficient braking force can be obtained even if the gas resistance is small. Moreover, since the resulting braking force gas drag, it is possible to adopt a simple structure also facilitates miniaturization. The braking force may be obtained by using the above-mentioned gas resistance together with the rotation resistance of a fluid substance other than the gas. In this case, by arranging the fluid substance other than the gas only in a part of the space around the brake, the braking force can be easily adjusted by increasing or decreasing the amount of the fluid substance.

In the present invention, it is preferable that the braking portion is provided with an airflow suppressing surface that covers at least a part of the outer periphery of the braking body.

According to the present invention, since the airflow suppressing surface that covers at least a part of the outer periphery of the brake is provided, it is possible to prevent the airflow generated by the blades of the brake from separating from the brake. Therefore, the rotation resistance due to the gas can be further increased. Here, the air flow constraining surface may be constituted by the inner surface of the braking body accommodating portion surrounding the braking body.

In the present invention, it is preferable that an opening is provided on the airflow suppressing surface.

According to the present invention, since the gas resistance can be changed by the number, position, opening area, etc. of the openings provided on the airflow suppressing surface, the braking force can be adjusted.

[0022] In the present invention, it is preferable that the braking force is based on electromagnetic induction caused by the rotation of the brake member. More specifically, it has a braking body and an opposing member arranged opposite thereto, and a permanent magnet is arranged on one of the braking body and the opposing member, and electromagnetic conversion means such as a coil is arranged on the other. Then, by connecting an electric load to the electromagnetic conversion means, an induced electromotive force is generated in the electromagnetic conversion means based on the rotation of the brake, and a current flows and a braking force is generated in the brake. Here, a braking force can be obtained according to an electric load for a current (coil current) generated in the electromagnetic conversion means, but at least a part of the electric load can be used. For example, it is possible to make a light emitting element emit light, emit sound from a speaker, or the like. By such light emission or sound generation, it is reported that braking is being performed, or that an apparatus is operating. Can be made. In this case, no fluid material is needed,
Adjustment and maintenance become easy.

In the present invention, it is preferable to have an electric load variable means capable of changing an electric load against an induced electromotive force generated by the electromagnetic induction.

According to the present invention, the braking force can be changed by the electric load variable means. For example, by changing the (load) impedance connected to the coil, it is possible to increase or decrease the electromagnetic force and adjust the braking force. Here, a variable resistor can be used as the electric load variable unit.

[0025] In the present invention, it said braking unit is provided sliding contact portion which contacts the object together, it is preferably configured such that the braking force is generated by the frictional resistance of the sliding contact portion.

According to the present invention, since a braking force can be obtained by the frictional resistance of the sliding contact portion, a simpler and less expensive structure can be obtained. In particular, when the power transmission means is configured to increase the rotation of the driving force accumulation unit and transmit the rotation to the braking unit, a sufficient braking force can be obtained even if the frictional resistance is small, Wear of the contact portion can be reduced, and the life of the sliding contact portion can be prolonged.

In the present invention, it is preferable that at least one of the objects is formed of an elastic body that exerts an elastic force in a direction of pressing against the other object.

According to the present invention, the frictional resistance can be stabilized by the elastic force of the elastic body, and the elastic force applied to the sliding contact surface can be changed by changing the material and the compression state of the elastic body. can this by the elastic force to control the frictional resistance, to adjust the braking force.

In the present invention, it is preferable that a slip means having a predetermined load resistance is provided in a rotation transmission path from the mainspring to the brake body.

According to the present invention, when an excessive stress is applied from the outside or when the braking force of the braking section becomes excessive due to a temperature change or the like, the slipping means slips, and thus the braking section and the driving force accumulation. Damage or destruction of the part can be prevented.

[0031] In the present invention, it is preferable that the braking portion is provided with a fluid substance and a braking member that comes into contact with the fluid substance, and a slip surface of the slip means is disposed in the fluid substance.

According to the present invention, since the slip surface of the slip means is arranged in the fluid material, the slip state can be stabilized by the lubricating effect and the cooling effect of the fluid material.

In the present invention, it is preferable that a rotation intermittent means for intermittently transmitting the rotation is provided in a rotation transmission path from the mainspring to the brake body.

According to the present invention, it is possible to appropriately apply or remove the braking force by the rotation intermittent means, so that the application characteristics of the braking force can be appropriately adjusted according to the application of the mainspring mechanism. Can be set.

[0035] In the present invention, the rotating interrupter, when the driving force accumulating unit accumulates driving force Disconnect rotation transmission, when the driving force accumulating portion is released the driving force Preferably, it is configured to transmit rotation.

According to the present invention, when excessive stress is applied from the outside or when the braking force of the braking section becomes excessive due to temperature change or the like, the rotation is interrupted by the rotation interrupting means so that the braking is stopped. This can prevent damage and destruction of the drive unit and the driving force storage unit.

Next, an apparatus according to the present invention includes the mainspring mechanism described above, and an opening / closing unit driven to open / close by the mainspring mechanism.

Devices having an opening and closing portion driven to be opened and closed by a mainspring mechanism include devices having a lid that rotates and opens around a hinge axis (such as a rice cooker and a folding electronic device). And a device having a portion that can be opened and closed by a sliding operation (a device having a sliding-type opening / closing structure such as a vehicle-mounted drawer opening / closing mechanism and a direct-acting retractable monitor). In these devices, the opening and closing operation can be performed at a controlled speed, and the sense of quality and quietness of the operation can be improved.

According to another aspect of the present invention, there is provided an apparatus having the mainspring mechanism described above and a movable section driven by the mainspring mechanism.

Such a device is not limited to the device having the opening and closing structure as described above, but may be any device having a movable portion such as a movable toy.

[0041]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a mainspring mechanism according to the present invention will be described in detail with reference to the accompanying drawings.

[0042] A first embodiment of the First Embodiment mainspring mechanism according to the present invention with reference to FIGS. 1 and 2 will be described. FIG. 1 is a longitudinal sectional view of the present embodiment, and FIG. 2 is a plan layout view of the present embodiment.

In the present embodiment, the mainspring 11
A barrel (spring case) 12 having an outer end mounting portion 12a engaged and fixed to an outer end 11b of the mainspring 11.
And a driving force accumulating portion provided with a barrel cover 13 fitted and fixed to the barrel 12, and an inner end 11 of the mainspring 11.
A core 10 which is a rotating member having an inner end mounting portion 10a fixedly mounted on the core 10 is provided. Core 70 is sandwiched train wheel bridge 100 and the main plate 101, and is fixed in a state of being restricted in the rotational direction.

The barrel lid 13 is a lid for preventing the mainspring 11 from flying out and for preventing intrusion of dust and the like.
The outer periphery of the barrel 12, which is a mainspring case, is provided with a tooth portion 12c in which a tooth pattern is formed at a portion formed in a flange shape.
The power is transmitted to a. Second gear 10
2 is transmitted to the gear 102 b and transmitted to the kana 103 a of the third gear 103. The power transmitted to the third gear 103 is transmitted to the gear 103b, and transmitted to the pinion 104a of the fourth gear 104, which is a braking body. A braking wing portion 104b is formed below the fourth gear 104, and a braking case 105 is disposed so as to surround the outer periphery thereof. A brake case lid 106 is press-fitted and fixed above the outer peripheral portion 105a of the brake case 105. A plurality of openings 104c are provided in the braking wing 104b. Between the brake case 105 brake housing lid 106 flow material 15 such as oil is filled. The braking wing portion 104b of the fourth gear 104 is configured to receive a predetermined rotation resistance due to a viscous resistance between the fourth gear 104 and the fluid substance 15.

Here, the opening 104 is formed in the braking blade 104b.
By forming c, the braking wings 104b can be easily immersed in the fluid material 15 during the manufacturing process, and the rotational resistance generated between the braking wings 104b and the fluid material 15 can be increased. It is configured.

[0046] The center portion of the brake casing cover 106 is curved upward and extends upwardly at a small distance between the shaft portion of the fourth gear 104. Since the fluid substance 15 is held in the accommodation space defined by the brake case 105 and the brake case lid 106 due to its surface tension,
The fluid substance 15 does not leak upward from the gap between the brake case lid 106 and the fourth gear 104. Note that, without using the surface tension of the fluid material 15, a sealing member such as a packing may be disposed between the brake case lid 106 and the fourth gear 104 to seal the fluid material 15. it is.

The second gear 102 has a train wheel bridge 100
An extension shaft 102c protruding upward is provided, and the gear 17 is fixed to the extension shaft 102c in a state where rotation thereof is restricted. The gear 17 transmits a rotational force applied from the outside to the second gear 102, winds the mainspring 11 through the barrel 12, and conversely, transmits a rotational driving force output from the mainspring 11 from the second gear 102. It is used as input / output means for receiving and outputting to the outside.

The fluid substance 15, the brake wings 104b, the brake case 105 and the brake case lid 106 constitute a brake unit, and the rotational resistance of the brake wings 104b in the fluid material 15 becomes a braking force. The braking force acts to suppress the rotation operation of each part due to the rotational driving force output from the mainspring 11 and the external rotational driving force provided via the gear 17. With such a configuration, the rotational driving force output from the wound mainspring 11 is transmitted to the second gear 102 to rotate the second gear 102, but the fourth gear 10
4. The speed is reduced by the braking force transmitted via the third gear 103, and is output by the gear 17 connected to the second gear 102.

In this embodiment, the second gear 10
Since the second, third and fourth gears 103 and 104 serve as power transmission means configured as a speed increasing gear train, the rotation of the mainspring 11 due to the rotational driving force is increased and transmitted to the braking unit. The braking wing 104b rotates faster than the barrel 12, and the rotation resistance received by the braking wing 104b increases as the square of the speed, so that a large braking force can be applied to the mainspring 11. Therefore, a sufficient braking force can be ensured even if the braking section is made compact or the amount of the fluid substance 15 is small.

In the present embodiment, since the braking force is increased by the speed increasing wheel train as described above, the braking portion can be made compact, so that the size and thickness of the mainspring mechanism can be easily reduced. Further, the second gear 102, third gear 103
And the driving force accumulating portion and the braking portion are connected via the power transmission means having the fourth gear 104, so that the driving force accumulating portion and the braking portion are arranged at positions not overlapping in plan as shown in the figure. As a result, the thickness can be significantly reduced as compared with the conventional structure in which the driving force accumulating portion and the braking portion are laminated in the axial direction. Also,
It becomes easy to assemble by adjusting the braking force.

In the present invention, the braking force may be adjusted by making the surface of the braking case that comes into contact with the flowable material into a matte (rough) surface.

[Second Embodiment] Next, a second embodiment of the mainspring mechanism according to the present invention will be described with reference to FIGS. In this embodiment, the core 20, the mainspring 21, the barrel 22, the barrel lid 23,
Second gear 202, third gear 203, gear 27, train wheel bridge 1
00 and the main plate 101, and the description thereof is omitted.

In the present embodiment, there is no braking portion utilizing the viscosity of the liquid having the braking wing portion 104b, the braking case 105, the braking case lid 106 and the flowable substance 15 as in the first embodiment. In the present embodiment, power is transmitted from the third gear 203 to the pinion 204a of the fourth gear 204, and rotates the windmill 204b provided with the wind wings 204c below the fourth gear 204. The windmill 204b is arranged in a gas (for example, air) 209. Thus, the braking unit of the present embodiment is configured such that the windmill 204b rotates at a high speed to generate air resistance, thereby obtaining a braking effect. In order to efficiently generate air resistance, a windshield 205 is formed around the windmill 204b, so that the flow of air generated inside the windshield 205 is hard to escape to the outside. A plurality of wind escape holes (openings) 205 are provided around the windproof cylinder 205.
The rotation speed output to the gear 27 can be freely adjusted by changing the number, the opening area, and the like of the wind escape holes 205a.

The braking section of the present embodiment includes a wind wing 204c.
Are configured so that the windmill 204b receives a predetermined rotational resistance by receiving air resistance. Therefore, there is no need to finely adjust the amount of the fluid substance due to the viscosity, and a structure for retaining the fluid substance is not required, so that an extremely simple structure can be achieved. Further, in the first embodiment, the viscosity of the flow material is changed by a change in environmental temperature, in this embodiment it is possible to obtain the rotation change of the rotation speed is a stable for little by essentially temperature changes.

Further, it is preferable to provide a gap adjusting means configured to be able to change the gap between the windmill 204b and the airflow suppression surface constituted by the windproof cylinder 205 disposed around the windmill 204b. This spacing adjustment means makes it possible to adjust the braking force. As the interval adjusting means, for example, a plurality of mounting grooves formed on the base plate for fitting the lower end of the windproof cylinder 205 can be cited.

[Third Embodiment] Next, a third embodiment of the mainspring mechanism according to the present invention will be described with reference to FIGS. In this embodiment, the first and second embodiments and the same winding core 30, the spiral spring 31, a barrel 3
2, a barrel cover 33, the second gear 302, third gear 303, the gear 37 is provided with the train wheel bridge 100 and the main plate 101, the description thereof is omitted.

In the present embodiment, there is no braking portion utilizing the viscosity of the liquid, including the braking wing portion 104b, the braking case 105, the braking case lid 106, and the fluid substance 15 as in the first embodiment. Power is transmitted from the third gear 303 to the pinion 304a of the fourth gear 304, and the fourth gear 3
The disk-shaped rotor portion 304b including a permanent magnet provided below the cover 04 rotates at a high speed. A stator 305 made of a high magnetic permeability material is arranged around the rotor section 304b. A coil 306 is fixed to the stator 305 with a screw 307 or the like. Said rotor portion 304b, the stator 305 and the coil 306 are those that are configured similarly to the step motor for a timepiece.

When the rotor 304b rotates at high speed by the power transmitted from the third gear 303, the coil 3
At 06, an induced electromotive force is generated, and a generated current (induced current) corresponding to the electric load connected to the coil 306 is generated. Moreover, the generated current flowing through the coil 306 (induced current)
As a result, an electromagnetic brake effect is generated to prevent the rotation of the rotor 304b. Therefore, when the rotation driving force is output by the mainspring 31, the rotation speed output to the gear 37 is reduced by receiving the braking force by the electromagnetic brake.

[0059] In the present embodiment, the step motor and similarly configured miniaturized for a timepiece, by using the power generation mechanism that is thinned, it becomes easy to design the layout, changing the outer shape of the mechanism easily.

[0060] braking portion of the present embodiment is not a structure to receive a rotational resistance due to viscosity, it is one that is configured to receive a predetermined rotational resistance by the electromagnetic brake. Therefore, there is no need to finely adjust the amount of the fluid substance due to the viscosity. Further, since there is no change in the rotation speed due to a temperature change or the like, stable rotation can be obtained. further,
There is also an advantage that the rotation speed can be easily adjusted by changing an electric load (such as an electric resistance (not shown)) connected to the coil 306. For example, by connecting a variable resistor to the coil 306 as an electric load, the braking force can be changed by changing the electric resistance value of the variable resistor, so that the output rotation speed of the gear 37 or the like can be easily adjusted. be able to.

FIG. 7 shows a circuit structure in which an electric load is connected to the coil 306. The coil 306
Is a main coil 1341A for power generation and braking, and a braking body 1
35 rotation number detection sub-coils 1341B. A load circuit 1342 is connected to the main coil 1341A, and an output of the main coil 1341A is connected to a capacitor 1349 such as a capacitor or a chemical secondary battery via a booster circuit 1348. The sub coil 1341B is the comparator 1
The output of the comparator 1344 is input to the synchronization circuit 1345, and the output of the synchronization circuit 1345 is input to the control circuit 1343. To the synchronization circuit 1345 and the control circuit 1343, a reference signal output from a frequency dividing circuit 1347 which operates in response to the output of the oscillation circuit 1346 is input.

The control circuit 1343 sends a control signal to the load circuit 1342 to control the electric load (impedance) of the load circuit 1342. FIG. 8 shows the load circuit 1
342 shows a schematic configuration. The load circuit 1342, switch SW1~SW constituted by the transistors, etc.
4 and electric resistances R1 to R connected in series to each switch.
4 are connected in parallel, and
By turning on / off the switches SW1 to SW4 by the control signal sent from the control circuit 1343,
Electrical load (impedance) of the entire load circuit 1342
Can be changed finely.

[0063] Incidentally, the detection signal synchronized with the rotation speed of the braking body 135 from the comparator 1344 in accordance with the electromotive force generated in the secondary coil 1348 is obtained, the detection signal to the control circuit 1343 in synchronization with the reference signal It is configured to send. The control circuit 1343 can compare the reference signal and the detection signal, and adjust the electrical load of the load circuit 1342 according to the comparison result. Here, it is also possible to control the rotation speed of the braking body 135 to be constant by the control of the control circuit 1343.

[Fourth Embodiment] Next, a fourth embodiment of the mainspring mechanism according to the present invention will be described with reference to FIGS. This embodiment is similar to the above embodiments, and includes a core 40, a mainspring 41, a barrel 42, a barrel lid 43,
Second gear 402, third gear 403, gear 47, train wheel bridge 1
00 and the main plate 101, and the description thereof is omitted.

In the present embodiment, the gear 403b of the third gear 403 meshes with the pinion 404a of the fourth gear 404, and the lower portion of the fourth gear 404 has a mounting plate regulated in the rotational direction with respect to the pinion 404a. A coil spring 405 is mounted and fixed to the mounting plate 404b by welding or the like. The lower end of the coil spring 405 is configured to be in sliding contact with the inner bottom surface of the container 406 fixed on the main plate 101.

In the above structure, the rotation of the mainspring 41 by the rotational driving force is performed by the second gear 402, the third gear 403,
The gears are sequentially transmitted while being accelerated by the fourth gear 404,
Since the mounting plate 404b and the coil spring 405 are rotated, the lower end of the coil spring 405 and the inner bottom surface of the container 406 slide. Sliding resistance generated at this time (friction resistance)
Is a braking force against the rotational driving force of the mainspring 41, so that the rotational speed of the gear 47 is reduced.

In this embodiment, as shown in FIG. 10, a coil spring 405 is provided by interposing a spacer 407 between a kana 404a and a mounting plate 404b.
Is changed so that the sliding resistance (friction resistance) between the coil spring 405 and the container 406 can be changed. In the illustrated example coil springs 405
Although the spacer 407 is used to change the position of the mounting plate 404b for the purpose of changing the compression state, the position of the mounting plate 404b may be changeable by other appropriate means such as a screw structure.

In the above embodiment, the container 40
A liquid such as oil or a coolant may be put into the inside of 6 to reduce frictional resistance or suppress heat generation due to friction.

[Fifth Embodiment] Next, a mainspring mechanism according to a fifth embodiment of the present invention will be described with reference to FIG. In this embodiment, a winding core 50 as a rotating member, a mainspring 51 having an inner end 51a connected to an attachment portion 50a of the winding core 50, and an outer end 51b of the mainspring 51
, A barrel cover 53 fitted to the barrel 52 from above, a partition plate 54 fitted to the barrel 52 from below, And a bottom plate 55 that supports the braking portion. Here, the core 5
Numeral 0 is rotatably supported by the barrel cover 53 and the partition plate 54.

The lower end 50b of the winding core 50 is pivotally supported by the central hole 54a of the partition plate 54.
It is connected to the engagement portion 501a of the first motor shaft 01 in a state where it is regulated in the rotation direction. The upper part of the core 50 is provided with a gear 57.
Is connected in a state where it is restricted in the rotation direction, and a rotation operation capable of rotating the winding core 50 or maintaining a rotation posture by engaging a tool at an upper end thereof. A groove 50c is formed. The connection gear 501 second
The gear of the second gear 502 meshes with the pinion of the third gear 503, the gear of the third gear 503 meshes with the pinion of the fourth gear 504, and the gear of the fourth gear 504 brakes. It engages with the pinion 505a of the shaft 505. The rotation of the core 50 is accelerated by the transmission wheel train configured as described above, and is finally transmitted to the brake shaft 505. The brake shaft 505 is provided with a brake plate 505b.
05b is a fluid substance 56 enclosed in a braking space formed by a braking case 506 and a braking case lid 507.
Is immersed in. The brake case 506 and the brake case lid 507 are attached to the partition plate 54 while being restricted in the rotation direction.

In this embodiment, the rotation of the winding core 50 is accelerated to a braking portion (constituted by the brake plate 505b, the brake case 506, the brake case lid 507, the fluid substance 56, etc.) via the transmission wheel train. Therefore, the braking force of the braking unit can be increased in accordance with the speed increase ratio of the transmission wheel train. Therefore, it has to be able to ensure sufficient braking force even constitute a braking unit compact.

In this embodiment, the transmission train and the braking unit
Since it is arranged so as to overlap the driving force accumulating portion including the mainspring 51 in a plane, the planar shape is compact.

[0073] [Sixth Embodiment] Referring to FIG. 12, a description will be given of a sixth embodiment of the mainspring mechanism according to the present invention. In this embodiment, a core 60, a mainspring 61, a barrel 62, and a gear 67, similar to the fifth embodiment, are used.
, And the description thereof is omitted.

In this embodiment, a gear case 64 is provided which is fitted and fixed to the barrel 62 from below, and
The lower end 60b of the is rotatably supported with respect to the center hole 64a of the gear case 64. The lower end 60b of the core 60 is connected to the engagement portion 601a of the internal gear 601 housed inside the gear case 64 in a state where the engagement portion 601a is restricted in the rotation direction. Or, it meshes with a plurality of planetary gears 602. Planetary gear 602
Meshes with a sun gear 603 rotatably supported at the center of the internal gear 601 and engages with an engagement portion 603b of the sun gear 603.
Are rotatably supported on a center hole 65 a of the upper braking case 65.

The engagement portion of the sun gear 603 is connected to the engagement portion 604b of the brake plate 604 while being restricted in the rotation direction. The brake plate 604 is connected to the upper brake case 65.
And a lower material 66 that is fitted and fixed to the upper case 65 and is disposed in a fluid substance 69 filled in a braking space defined by the lower case 66. A shaft hole 604a is formed in the center of the brake plate 604.
Accommodates the engaging projection 66a of the braking lower case 66 rotatably. In addition, a sealing material 68 made of packing or the like is disposed between the upper braking case 65 and the braking plate 604 so as to prevent the fluid substance 69 from leaking out of the center hole 65a of the upper braking case 65.

The braking plate 604 is provided with a braking wing portion 604c. When the braking plate 604 rotates, a viscous resistance is generated between the braking wing portion 604c and the flowable substance 69, so that the braking plate 604 receives the rotational resistance. It is configured. In the present embodiment, the winding core 60 by the rotational driving force of the mainspring 61 is rotated, this rotation is the internal gear 601, the planetary gears 60
2, is transmitted to the brake plate 604 via a transmission gear train composed of a sun gear 603 by the brake plate 604 receives the rotational resistance to rotate, the core 60 becomes to receive the braking force.

In this case, if the revolving operation of the planetary gear 602 is configured freely, the gear mechanism idles due to the revolution of the planetary gear 602, and the sun gear 603 and the brake plate 604 do not rotate, so that the braking effect cannot be obtained. . Therefore, for example, the planetary gear 602 is rotatably supported at a predetermined position with respect to the upper braking case 64 or the lower braking case 65 so as to prevent the planetary gear 602 from revolving. Can function. Also, a configuration may be employed in which frictional resistance acts between the planetary gear 602 and the upper braking case 64 or the lower braking case 65 to limit the revolution of the planetary gear 602 so that the braking effect of the braking unit can be obtained. Good.

In this embodiment, the rotation of the winding core 60 due to the rotational driving force of the mainspring 61 is increased by the power transmission means constituted by a planetary gear mechanism and transmitted to the brake plate 604. The rotational resistance of the brake plate 604 receives a braking force that is increased according to the speed increase ratio, and the gear 67 is driven slowly by the braking force.

[0079] In this embodiment, it becomes possible to constitute a power transmission means compactly by using a planetary gear mechanism, it can also increase the speed increasing ratio.

[0080] [Seventh Embodiment] Next, a description will be given of a seventh embodiment of the mainspring mechanism according to the present invention with reference to FIG. 13. In this embodiment, a core 70, a mainspring 71, a barrel 72, a barrel lid 73, which are basically the same as those of the first embodiment,
Flow material 75, the gear 77, the train wheel bridge 100, ground plane 101,
Second gear 702, third gear 703, fourth gear 704, brake wing 704b, brake case 705, and brake case lid 7
06, their description is omitted.

In this embodiment, the gear 77 is connected not to the second gear 702 but to the extension shaft 704c of the fourth gear 704 in a state of being restricted in the rotation direction.

In this embodiment, the braking force against the rotational driving force of the mainspring 71 acts in the same manner as in the first embodiment.
Since the input and output shafts comprised by the gear 77 is rotated connected to the fourth gear 704, it is possible to increase the driving speed. Such a configuration is suitable when a high driving speed is required and the driving load is small.

[Eighth Embodiment] Next, an eighth embodiment of the mainspring mechanism according to the present invention will be described with reference to FIG. In this embodiment, a core 80, a mainspring 81, a barrel 82, a barrel lid 83,
Fluid substance 85, gear 87, train wheel bridge 100, main plate 101,
Second gear 802, third gear 803, fourth gear 804, brake wing 804 b, brake case 805, and brake case lid 8
06, their description is omitted.

In the present embodiment, the gear 87 is connected not to the second gear 802 but to the extension shaft 803c of the third gear 803 while being restricted in the rotation direction.

In this embodiment, the braking force against the rotational driving force of the mainspring 81 acts in the same manner as in the first embodiment.
Since the input / output shaft constituted by the gear 87 is rotatably connected to the third gear 803, it is possible to achieve both driving speed and driving force. Such a configuration requires a certain driving speed, but is suitable when a certain driving load exists.

[0086] The first embodiment, the seventh embodiment and eighth
As shown in the embodiment, the input / output shaft (output means or output gear) of the mainspring mechanism can be connected to an arbitrary portion of the power transmission means during speed-up or deceleration. Therefore, it is possible to take out the rotational driving force of the mainspring by an appropriate driving speed and the driving torque, it is possible to realize the optimal driving to various driven devices.

[Ninth Embodiment] Next, a ninth embodiment of the mainspring mechanism according to the present invention will be described. This embodiment has substantially the same structure as that of the first embodiment shown in FIG. 1, and will be described below with reference to FIG.

In this embodiment, the shaft portion of the fourth gear 104 and the braking wing portion 104b are formed separately, and both are connected in the rotational direction only by frictional force. Therefore, when a stress larger than the static friction force between the shaft portion of the fourth gear 104 and the braking wing portion 104b is applied, the two slip with each other. Therefore, the braking force against the rotational driving force of the mainspring 11 does not become larger than the static friction force, and once the slip occurs, the braking force is applied between the shaft portion of the fourth gear 104 and the braking wing portion 104b. Value corresponding to the dynamic frictional force of

In this embodiment, for example, when an abrupt external torque is applied from the gear 17, an excessive mechanical force is applied to the driving force accumulating unit, the train wheel, the braking unit, etc. by the external torque and the braking force of the braking unit. it is possible to prevent that the load applied damage or destruction occurs. In particular, when the viscosity of the fluid substance 15 increases due to a decrease in temperature, the braking force also becomes excessive, so that damage and destruction of each part are more likely to occur.
Very effective.

Further, in this embodiment, the portion constituting the slip means is between the shaft portion of the fourth gear 104 and the braking blade portion, and since this slip surface is disposed inside the fluid substance 15, Due to the lubrication and cooling effects of the substance 15, seizure and wear can be suppressed, the slip state can be stabilized, and heat generation during slip can be prevented.

The slip means may be provided anywhere in the rotation transmission path from the driving force accumulating section to the braking section. However, when an input / output unit (corresponding to the gear 17 of the first embodiment) exists between the driving force accumulation unit and the braking unit, the input / output unit is disposed between the input / output unit and the braking unit. Is preferable in order to reliably shut off the braking force. For example, in the example of FIG. 1, between the second gear 102 and third gear 103, third gear 103, a third gear 103 fourth gear 10
4 and one of the fourth gears 104.

[Tenth Embodiment] Next, FIG. 15 and FIG.
A tenth embodiment according to the present invention will be described with reference to FIG. This embodiment is basically the same as the fifth embodiment, except that the winding core 90, the mainspring 91, the barrel 92, the barrel lid 93, the partition plate 94, the bottom plate 95, the gear 97, the connecting gear 90
1, second gear 902, third gear 903, fourth gear 90
4, brake shaft 905, brake wing 905b, brake case 90
6 and the brake case lid 907, and a description of similar parts will be omitted.

[0093] In this embodiment, as shown in FIG. 15, the projecting frame portion 90b at the lower end of the winding core 90 is formed, also protruding shaft portion 901a in a central portion of the connecting gear 901 are formed. The protruding shaft portion 901a is arranged inside the protruding frame portion 90b. A clutch spring 160 is attached to the protruding shaft portion 901a, and the clutch spring 160 transmits rotation by engaging with the protruding frame portion 90b.

FIG. 16 shows the winding core 90 and the connecting gear 901.
FIG. 4 is a cross-sectional view showing a structure of an engagement portion with the first embodiment. Protruding shaft 9
The inner end 161 of the clutch spring 160 is inserted and fixed to 01a. The clutch spring 160 is connected to the inner end portion 16.
A bending portion 162 which is bent from the first portion and surrounds the outer periphery of the protruding shaft portion 901a.
An outer end portion 163 is provided so as to be able to engage with the protruding frame portion 90b away from the outer frame portion 01a.

In FIG. 16, a connecting gear 901 having a protruding shaft portion 901a is a core 90 having a protruding frame portion 90b.
Is configured to be rotatable counterclockwise in the figure (indicated by the arrow in the figure). On the other hand, when the connection gear 901 is to rotate clockwise in the figure, the outer end 163 of the clutch spring 160 engages with the protruding frame portion 90b, so that the connection gear 901 and the core 90 rotate in the rotation direction. Engage,
The connection gear 901 and the core 90 rotate together.

As described above, in the present embodiment, the protruding shaft portion 901a, the protruding frame portion 90b, and the clutch spring 160 form a rotary sliding portion when the core 90 rotates in one direction, and do not transmit the rotation. However, when the core 90 rotates in the other direction, it is configured as a one-way clutch which is a rotation intermittent means configured to couple with the connecting gear 901 in the rotational direction and transmit the rotation to the braking unit.

[0097] In this embodiment, when the core 90 is rotated in the one direction is arranged to tighten up the mainspring 91, also the core 90 by the elastic force of the mainspring 91 is wound up is the other direction It is configured to be driven to rotate.

[0098] In this embodiment, when the core 90 through the gear 97 is rotated in one direction, so is not performed rotation transmission between the connection and the winding core 90 gear 901, the winding core 90 is The mainspring 91 can be tightened without receiving a braking torque.

On the other hand, when the core 90 is rotated in the other direction by the wound mainspring 91, the core 9
Since 0 and the connection gear 901 are coupled in the rotational direction via the clutch spring 160, the core 90 slowly rotates while receiving the braking torque from the braking unit.

[0100] Since the present embodiment functions as described above,
Even if an excessive drive torque is received when the mainspring 91 is tightened, the core 90 does not receive the braking torque, so that damage and destruction of the internal mechanism can be prevented. Further, even when the viscosity of the fluid substance increases due to a decrease in temperature, the probability of damage or destruction of the internal mechanism does not increase, and the mainspring 81 is easily wound regardless of the viscosity of the fluid substance. Can be.

In the present embodiment, the driving force accumulating section constituted by the mainspring 91 and the barrel 92 and the braking wing 9
In addition to the integral construction of the brake unit including the brake unit 05b, there is also an advantage that a compact driving device can be constructed with a very simple structure by means of the rotation intermittent means including the clutch spring 160.

[Eleventh Embodiment] Next, an eleventh embodiment of a device provided with a mainspring mechanism according to the present invention will be described with reference to FIG. This embodiment uses drawer D
The mainspring mechanism Z of each of the above embodiments is attached to a drawer mechanism having a case-shaped drawer accommodation portion E configured to accommodate the drawer D. The mainspring mechanism Z is attached to the inside of the drawer housing portion E, and has a cylindrical member 18D and a band member 19 whose base end is connected to the cylindrical member 18D as output means. The tip of the band 19 is attached to the inner end of the drawer D.

In this embodiment, the mainspring in the mainspring mechanism Z is wound by pulling out the drawer D as shown, and locked by a lock mechanism not shown. When the locked state is released in this state, the cylindrical member 18D is rotated by the driving force of the mainspring, so that the band material 19 is wound around the cylindrical member 18D, and the mainspring mechanism Z is rotated.
The drawer D is slowly pulled in by the braking force provided by the braking unit inside.

In the drawer mechanism of the above embodiment,
When the drawer D is pulled out, the mainspring in the mainspring mechanism Z is wound and pulled out by the driving force of the mainspring.
Although but is configured to be stored in the drawer housing portion E, conversely, the mainspring of the mainspring mechanism Z is seamed when storing drawer D, it is locked in a state where the drawer D is stored, the locking , The drawer D may be slowly pulled out by the driving force of the mainspring.

[Twelfth Embodiment] Finally, a twelfth embodiment of a device provided with a mainspring mechanism according to the present invention will be described with reference to FIG. This embodiment shows an example in which the present invention is applied to a movable toy. A movable portion G (tail fin) and a movable portion H (chest fin) are swingably attached to the toy body F. A spring mechanism Z is built in the toy main body F. The spring mechanism Z includes a cylindrical member 18E and an
E, an output shaft 18F attached to the
And a transmission belt 18G engaged with the transmission belt 18G. The tip of the transmission belt 18G is attached to the end of the movable parts G and H.

When the cylindrical member 18E is rotated by the driving force of the mainspring in the mainspring mechanism Z, the output shaft 18F turns to swing the transmission belt 18G.
Swings in conjunction to this. Therefore, for example, if the tip of the output shaft 18F is made to protrude out of the toy body F, the mainspring in the mainspring mechanism Z is wound by rotating the output shaft 18F, and the output shaft 18F is movable by releasing the output shaft 18F. The portions G and H can be made to swing.

The mainspring mechanism of the present invention is not limited to the illustrated example described above, and it goes without saying that various changes can be made without departing from the spirit of the present invention.

[Others] The mainspring mechanism and the device of the present invention are not limited to the above-described illustrated examples, and various changes can be made without departing from the scope of the present invention. .

For example, in each of the above-described embodiments, a single mainspring is provided. However, a plurality of mainsprings may be provided to increase the driving force or to extend the driving time or the driving distance. In this case, for example, a relatively compact configuration can be achieved by stacking and arranging a plurality of springs in the axial direction. Here, when a plurality of stages of the mainspring are provided, it is possible to set the winding tightening force (driving force) of each stage to a different value. Can be set freely and arbitrarily, and delicate setting is also facilitated.

The mainspring mechanism of the present invention has a reduced size,
For the purpose of thinning, it is preferable that most parts (rotating member (shaft member) and spring accommodating portion, etc.) are formed of metal, and output means is formed of synthetic resin to reduce noise. preferable.

A spiral spring made of stainless steel or iron material is generally used for the mainspring, but the spring is not limited to this, and any material or shape that generates torque by rotation can be used. It may be something.

As the fluid substance, it is preferable to use various oils, but it is not limited to oil, and various liquids and powders (granules) other than oil can be used.

[0113]

As described above, according to the present invention, as described above,
By providing the power transmission means between the driving force accumulating portion and the braking portion of the mainspring mechanism, it becomes possible to obtain a braking characteristic suited to the situation.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing the structure of a first embodiment of a mainspring mechanism according to the present invention.

FIG. 2 is a plan layout view of the first embodiment.

FIG. 3 is a longitudinal sectional view showing a structure of a second embodiment of a mainspring mechanism according to the present invention.

FIG. 4 is a plan layout view of a second embodiment.

FIG. 5 is a longitudinal sectional view showing a structure of a third embodiment of a mainspring mechanism according to the present invention.

FIG. 6 is a plan layout view of a third embodiment.

FIG. 7 is a schematic block diagram schematically showing a circuit configuration applicable to the third embodiment.

FIG. 8 is a schematic configuration diagram schematically showing a configuration of the load circuit shown in FIG. 7;

FIG. 9 is a longitudinal sectional view showing a structure of a fourth embodiment of a mainspring mechanism according to the present invention.

10 is a longitudinal sectional view showing different states of a fourth embodiment.

11 is a longitudinal sectional view showing the structure of a fifth embodiment of the mainspring mechanism according to the present invention.

FIG. 12 is a longitudinal sectional view showing a structure of a sixth embodiment of a mainspring mechanism according to the present invention.

FIG. 13 is a longitudinal sectional view showing the structure of a seventh embodiment of a mainspring mechanism according to the present invention.

14 is a longitudinal sectional view showing the structure of the eighth embodiment of the mainspring mechanism according to the present invention.

FIG. 15 is a longitudinal sectional view showing the structure of a tenth embodiment of a mainspring mechanism according to the present invention.

FIG. 16 is a cross-sectional view illustrating a structure of a rotary connection unit according to a tenth embodiment.

FIG. 17 is a schematic perspective view schematically showing a structure of an eleventh embodiment according to the present invention.

FIG. 18 is a schematic perspective view schematically showing a structure of a twelfth embodiment according to the present invention.

[Explanation of symbols]

10,20,30,40,50,60,70,80,9
0 core 11,21,31,41,51,61,71,81,9
1 Spring 12, 22, 32, 42, 52, 62, 72, 82, 9
2 barrel 100 wheel train receiver 101 main plate 102 second gear 103 third gear 104 fourth gear 104b brake wing 105 brake case 106 brake case lid 204b windmill 205 windproof cylinder 304b rotor unit 305 stator 306 coil 404b mounting plate 405 coil spring 406 housing vessel

Front page of the continuation (72) inventor Shoichi Nagao Suwa City, Nagano Prefecture Yamato 3-chome No. 3 No. 5 Seiko Epson Corporation over the F-term (reference) 2C150 AA15 CA02 CA10 DA19 DA20 EB36 EG07 EG12

Claims (16)

[Claims] A driving force accumulating portion including a mainspring wound by a winding force to accumulate a restoring force, and a mainspring accommodating portion accommodating the mainspring; and a rotating member connected to the other end of the mainspring. A braking mechanism that generates a braking force against the reciprocal movement between the mainspring housing and the rotating member, wherein a speed increase or deceleration is provided between the driving force accumulating section and the braking section And a power transmission means for transmitting rotation. Wherein said power transmission means, mainspring mechanism according to claim 1, characterized in that it is configured to transmit to the braking portion by accelerating the rotation of the driving force storage unit. The method according to claim 3, wherein the braking portion, and the flow material, the braking body and is provided in contact with the fluid animal matter, the is configured as a braking force is generated by the rotation resistance of the braking body with respect to the flow material The mainspring mechanism according to claim 1 or 2, wherein the mainspring mechanism is provided. 4. The braking unit according to claim 1, wherein a braking member that generates the braking force due to its rotational resistance is provided, and the braking member is provided with a blade that receives gas resistance. mainspring mechanism according to claim 2. 5. The mainspring mechanism according to claim 4, wherein the braking portion is provided with an airflow suppressing surface that covers at least a part of an outer periphery of the braking body. 6. The mainspring mechanism according to claim 5, wherein an opening is provided in the airflow suppression surface. 7. The braking unit is provided with a braking body that generates the braking force due to its rotational resistance, and the braking force is based on electromagnetic induction generated by rotation of the braking body. The mainspring mechanism according to claim 1 or 2. 8. The mainspring mechanism according to claim 7, further comprising an electric load variable means capable of changing an electric load against an induced electromotive force generated by the electromagnetic induction. 9. A sliding contact portion which objects come into contact with each other in the braking portion is provided, according to claim 1, characterized in that it is configured such that the braking force is generated by the frictional resistance of the sliding contact portion Alternatively, the mainspring mechanism according to claim 2. 10. The mainspring mechanism according to claim 9, wherein at least one of the objects is made of an elastic body that exerts an elastic force in a direction of pressing against the other. 11. During rotation transmission path from the mainspring to the brake member, the mainspring mechanism according to claim 1 or claim 2, characterized in that a slip means having a predetermined load resistance. 12. The braking unit according to claim 1, wherein a fluid material and a brake body that comes into contact with the fluid material are provided, and a slip surface of the slip unit is disposed in the fluid material. mainspring mechanism according to claim 11. 13. The mainspring mechanism according to claim 1, wherein a rotation intermittent means capable of intermitting rotation transmission is provided in a rotation transmission path from the mainspring to the brake body. 14. The rotation interrupting means interrupts rotation transmission when the driving force accumulation unit accumulates driving force, and stops rotation when the driving force accumulation unit emits driving force. 14. The mainspring mechanism according to claim 13, wherein the mainspring mechanism is configured to transmit. 15. The method according to claim 1, wherein:
An apparatus comprising: a mainspring mechanism according to item 1; and an opening / closing unit driven to be opened and closed by the mainspring mechanism. 16. The method according to claim 1, wherein:
An apparatus comprising: the mainspring mechanism described in the above section; and a movable part driven by the mainspring mechanism.