JP2002202047A - Spiral spring mechanism and apparatus having this - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a spiral spring mechanism, and reduce a manufacturing cost by simplifying a structure of the spiral spring mechanism having a braking means, and also adopting a structure capable of reducing the number of part items. SOLUTION: A core 10 is connected to the inner end 11a of a spiral spring 11, and the outer end 11b of the spiral spring 11 is connected to an incense box 12. A braking plate 15 is arranged inside a braking case 14, and a fluid substance 16 is filled. A recess-projection joining part 10b is arranged on the lower end of the core 10, and this recess-projection joining part 10b engages with a recess-projection joining part 15b of the braking plate 15 arranged in the braking case 14.

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, only the rotating shaft may be used as the only driving force take-out unit, but for example, one of the rotating shaft and the mainspring case is used as the input shaft,
One of them may be 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, 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 mainspring, and the braking action of the brake plate reduces fluctuations in the driving force of the mainspring. A structure (speed control mechanism) for reducing a change in driving force or driving speed is employed.

[0004]

However, in the mainspring mechanism having the above-mentioned braking means, the mainspring has
It has a structure including a mainspring case, a brake plate, and a brake case. In particular, the brake case that houses the brake plate needs to be filled with a flowable substance or the like, so that a high sealing property is required. Since it is necessary to connect the mainspring and the mainspring, there is a problem that it is usually difficult to reduce the manufacturing cost because of having a considerably complicated structure and increasing the number of parts. In addition, since the shape and structure are complicated, the spring case and the like are also complicated, and some of them cannot be manufactured in terms of cost unless they are plastic molded products. In this case, insufficient rigidity and insufficient durability of the mechanism are caused. Often.

The conventional spring mechanism having a braking means has a large rotational load such as a frictional load due to a reduction in size and a simplified structure, and cannot be driven efficiently, and has a special structure. Some devices were difficult to install.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to simplify the structure of a mainspring mechanism having a braking means, and at the same time, to adopt a structure capable of reducing the number of parts. An object of the present invention is to reduce the size of the mechanism and reduce the manufacturing cost. Another object of the present invention is to provide a mainspring mechanism that can transmit a driving force efficiently and can be easily attached to various devices.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a mainspring mechanism of the present invention is provided with a mainspring that is wound by a tightening force and accumulates a restoring force. A connected mainspring receiving section, a driving force storage section including a rotating member connected to an inner end of the mainspring and supported by the mainspring receiving section, output means connected to the rotating member, and the rotating member And a braking unit that generates a braking force with the rotation of the braking body.

According to the present invention, since the rotating member is connected to the inner end of the mainspring, the diameter of the bearing portion of the rotating member formed by the mainspring accommodating portion is reduced, and the frictional load can be reduced. In addition, since the rotating member is disposed inside, the outer surface portion such as the mainspring accommodating portion can be easily attached to another member or the like. Furthermore, since a rotating member is connected to the inner end of the mainspring, and the rotating member is further connected to the output means, the rotating means and the output means are configured separately so that the output means can be easily replaced. And the shape and structure of the output means can be configured more freely. Therefore, the size of the mainspring mechanism can be further reduced, and the manufacturing cost can be reduced. Here, as output means of the present invention, a gear, a gear train, a pulley, a chain or a belt,
It can be configured with various structures such as a shaft.

In addition, the life of the mainspring is prolonged because it stores and releases elastic energy slowly by the braking force generated by the braking portion. Here, the mainspring includes a conston spring and a coil spring used in a manner of taking in and out energy with a change in the tightening state. The connection between the mainspring and the rotating member and the mainspring receiving portion may be in any mode such as pressure contact, hooking, welding, and the like.

In the present invention, it is preferable that the driving force accumulating section and the braking section are formed separately.

According to the present invention, since the driving force accumulating portion and the braking portion are formed separately, for example, when the driving force accumulating portion is configured to be independently constituted by itself, After the driving force accumulating section is assembled, the braking section can be incorporated, and when a component in the driving force accumulating section such as a mainspring has a defect, the driving force accumulating section can be removed from the manufacturing line in advance. In addition, for example, when the braking unit is configured to be independently constituted by itself, the driving force accumulating unit can be incorporated after assembling the braking unit, so that the braking unit having a structure in which a viscous fluid is sealed is used. Can be assembled with other parts after enclosing, or a plurality of types of braking parts having different braking forces can be prepared in advance, so that handling during assembly work, parts management, etc. are facilitated. .

[0012] In the present invention, it is preferable that the braking section itself be unitized independently. Here, the expression that the braking unit is unitized by itself means that the braking unit is configured to be able to be completely assembled and then other parts can be incorporated.

According to the present invention, since the braking unit is unitized by itself, even if the braking unit is previously constituted independently, its handling becomes easy. For example, in the final step of assembly, The assembling operation can be easily performed, for example, the braking unit can be connected to the driving force accumulation unit. In particular, when a fluid substance is accommodated in the braking section, it is possible to configure the fluid substance in a sealed state, and handling and management thereof are facilitated.
In addition, a plurality of types of braking units having different braking characteristics are configured in advance, and it is possible to select and incorporate the braking units according to the required characteristics of the product.

In the present invention, the driving force accumulating portion and the braking portion are fitted and fixed to each other, and a groove through which another member can be inserted from outside is provided between the driving force accumulating portion and the braking portion. Preferably, it is configured.

According to the present invention, a tool or a jig can be inserted into the groove to apply a stress between the driving force accumulating portion and the braking portion. And can be easily separated from each other. Therefore,
This is effective when the mainspring of the drive source is replaced or when the braking unit is replaced.

In the present invention, it is preferable that the driving force accumulating portion is sealed.

According to the present invention, since the driving force accumulating portion is sealed, it is possible to prevent dust from entering the driving force accumulating portion, and to apply high-viscosity grease around the mainspring. Even in this case, it is possible to prevent the grease from leaking out of the driving force accumulation unit. In addition,
More specifically, in the driving force accumulating portion, it is desirable that the spring is hermetically sealed by attaching a lid to the opening of the above-mentioned spring housing portion.

In the present invention, it is preferable that the rotating member and the braking member are formed separately and are connected to each other at least in a rotational direction.

According to the present invention, since the rotating member and the braking body are formed separately and connected to each other while being connected to each other in the rotational direction, one of the driving force accumulating section and the braking section is provided. Since the assembly procedure of assembling and connecting the other becomes possible, each part can be easily handled, and the assembly work can be performed easily.
The assemblability can be improved. Here, the coupling of the rotating member and the braking body in the rotational direction may be of any structure as long as the structure engages in the rotational direction. In particular, the coupling between the groove crossing the center of rotation and the corresponding convex portion is preferable. Combination structure (for example, minus-shaped groove and tip-shaped convex part of minus driver)
And an engagement structure (for example, a hexagonal hole and a hexagonal prism) between a concave portion and a convex portion having a rectangular shape. Further, it is also possible to adopt a structure in which the rotating member and the braking body are press-fitted to each other. In this case,
Although the assemblability is somewhat inferior, since both can be completely integrated, there is an advantage that a guide structure for the braking body is not required because the rotating member is pivotally supported by the mainspring receiving portion.

In the present invention, it is preferable that a diameter of a pivot between the rotating member and the spring accommodating portion is smaller than a radial position of a connecting portion between an inner end of the mainspring and the rotating member.

According to the present invention, the rotational support diameter of the rotating member is
Since the rotating member is smaller than the radial position receiving the rotational force from the mainspring, energy loss (for example, loss due to friction energy in the case of a sliding bearing structure) in the bearing portion of the rotating member can be reduced, and the bearing portion can be reduced. Can also reduce the amount of wear.

In the present invention, the end of the rotating member opposite to the braking portion (ie, the end opposite to the end connected to the braking member) is provided in the rotating direction of the rotating member. It is preferable that an engaging structure capable of engaging is provided.

According to the present invention, when the mainspring mechanism is incorporated in the main body of the apparatus or connected to another member, there may be a case where the assembling work or the connecting work is performed with the mainspring wound to a certain degree. However, in this case, it is possible to maintain the winding state of the mainspring by engaging a tool or a jig with an engagement structure provided at an end of the rotating member, so that the assembling work and the connecting work can be easily performed. It is possible to do. Here, as the engagement structure, a minus or plus groove or a convex portion (for example, a screw tool can be engaged), a polygonal hole or a convex portion (for example, a wrench can be engaged). That can be engaged in various rotational directions.

[0024] In the present invention, it is preferable that the rotating member or the output means is provided so as to be able to be disengaged from the rotating member, and a regulating means for regulating the release of the driving force of the spring is provided.

According to this invention, the winding state of the mainspring can be held by the restricting means, so that the work of assembling it into the apparatus main body and the work of connecting to other members are facilitated, and the restricting means preliminarily sets the mainspring. Can be set to a predetermined amount, so that variations in the tightened state can be reduced, and adjustment and confirmation of the tightened state can be made unnecessary. Here, the restricting means is a stationary part of the driving force accumulating means or the braking part (for example, a part which is not linked to the rotating operation of the rotating member or the output operation of the output means, such as a mainspring accommodation part or a braking body accommodation part of the braking part). It is desirable that they are positioned (eg, engaged) by

In the present invention, it is preferable that the restricting means has a plurality of engagement positions with the rotating member or the output means.

According to the present invention, the winding state of the mainspring can be adjusted by appropriately selecting a plurality of engagement positions of the restricting means with the rotating member or the output means. Here, the regulating means is provided on the immovable part of the driving force accumulating means and the braking part (for example, a part which is not linked to the rotation operation of the rotating member or the output operation of the output means, such as the mainspring accommodation part or the braking body accommodation part of the braking part). By providing a plurality of portions to be positioned (for example, engaged), a plurality of engagement positions of the regulating means can be realized.

In the present invention, it is preferable that a connecting portion between the outer end of the mainspring and the mainspring housing has a rotary connection structure by frictional force.

According to the present invention, since the mainspring and the mainspring receiving portion are connected by the rotary connection structure by frictional force, when a further tightening force is applied beyond the winding limit of the mainspring, or suddenly, When a large torque is applied to the spring, the rotation connection structure slides to prevent the spring from being broken. Here, the rotary connection structure by friction force is a structure configured to transmit rotation between the mainspring and the spring housing portion by friction force, and when a stress exceeding the friction force is applied between the two, slippage occurs. It acts to limit the generated stress. As this rotary connection structure, a so-called slipping attachment can be used.

In the present invention, it is preferable that an outer peripheral surface of the rotating member has a shape whose radius gradually increases in a circumferential direction of the mainspring from a connection portion to an inner end of the mainspring.

According to the present invention, since the outer peripheral surface of the rotating member has a shape whose radius gradually increases in the circumferential direction of the mainspring from the connection portion to the mainspring, the torque of the mainspring can be stably output. Will be possible. The cross-sectional shape of the outer peripheral surface of the rotating member includes, for example, an Archimedes spiral shape. Here, it is desirable that a claw portion that engages with the mainspring is provided on the outer peripheral surface of the rotating member at the connection portion. The inner end shape of the mainspring that can be engaged with the claw portion (for example, a slit that engages with the claw portion) can be simplified, and the end portion of the mainspring can be easily processed.

[0032] In the present invention, the braking portion may be configured to contain a flowable substance that contacts the braking body, and that the braking force is generated by rotational resistance of the braking body caused by the flowable substance. preferable.

According to the present invention, a high braking force can be obtained and a stable braking force can be obtained by accommodating the flowable substance in the brake section and making the brake body and the flowable substance come into contact with each other. be able to. In addition, it becomes possible to adjust the braking load according to the viscosity of the fluid material, etc.
Various braking characteristics can be obtained. Further, by adjusting characteristics such as viscosity, it is possible to obtain a sufficient braking force even with a small amount of a fluid substance, so that the size of the braking unit can be reduced.

In the present invention, it is preferable to have an adjusting means capable of adjusting a contact area between the brake body and the fluid substance.

According to the present invention, the braking load can be changed by changing the contact area between the brake body and the fluid substance by the adjusting means. More specifically, when the brake unit is provided with a brake body housing and a brake body rotating inside the brake body, the fluid substance contacts both the inner surface of the brake body housing and the surface of the brake body. Then, the resistance caused by the flow of the fluid substance becomes the braking force. Therefore, the braking force changes according to the contact area between the fluid and the braking body. In particular, it is desirable to increase or decrease the contact area of the flowable substance with the brake body accommodating portion in parallel with the contact area of the flowable substance with the brake body. Here, as the adjusting means, any means can be used as long as it can change the contact area between the braking body and the fluid substance, for example, means for moving the fluid substance or changing the amount of the fluid substance Means and the like.

[0036] In the present invention, it is preferable that a space for accommodating the flowable substance in the braking portion is configured to expand toward a connection portion between the braking member and the rotating member.

According to the present invention, the accommodation space of the braking unit is
By being configured to spread toward the connecting portion between the braking body and the rotating member, the fluid substance is held in the housing space by its surface tension, and is prevented from moving toward the connecting portion. Also, it is possible to prevent the flowing substance from flowing out of the connection portion to the outside without providing a sealing material such as packing or a sealing structure. Therefore, the rotational resistance caused by the sealing material and the sealing structure is eliminated, so that the energy loss can be reduced.

[0038] In the present invention, it is preferable that the braking body includes a blade that receives gas resistance.

According to the present invention, rotation resistance due to gas is generated by providing the blades on the braking body, so that the rotation resistance due to the gas can be used as a braking force. Here, a fluid substance other than gas is brought into contact with the braking body,
The flow resistance of the flowing material may be used as a part of the braking force. Thereby, braking by gas resistance and braking by a fluid substance other than gas can be combined. 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 body is provided, it is possible to prevent the airflow generated by the blades of the brake body from separating from the brake body. 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, the gas resistance can be changed depending on the number, position, opening area, etc. of the openings provided on the airflow suppressing surface, so that the braking force can be adjusted.

In the present invention, it is preferable that the braking force is based on electromagnetic induction generated by rotation of the braking body. More specifically, the brake has a braking body and an opposing member arranged opposite to the braking body. A permanent magnet is arranged on one of the braking body and the opposing member, and a coil is arranged on the other. An induced electromotive force is generated in the coil based on the rotation of the body, and a current flows and a braking force is generated in the brake body. Although the braking force can be obtained according to the electric load with respect to the coil current, 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, and to inform that braking or equipment is operating by such light emission or sound generation. Can be. In this case, since a fluid substance is not required, 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.

In the present invention, it is preferable that the driving force accumulating section has an attaching means for attaching the mainspring mechanism to another member.

According to the present invention, by providing the attaching means for attaching the mainspring mechanism to another member, it is possible to easily attach the mainspring mechanism to another member. Can be connected to or incorporated into In addition, by providing the mounting means in the driving force accumulating portion, the driving force accumulating portion to which the most stress is applied (accordingly, a structure having a necessarily high rigidity) is mounted on another member, so that the mounting strength is increased. This makes it possible to provide a structure in which destruction due to external stress hardly occurs. Furthermore, since the driving force accumulating portion is attached to another member, the positional relationship and posture of the driving force accumulating portion with respect to the other member (particularly, the spiral shape of the mainspring) are always constant, and the driving force accumulating portion is connected to other members. Since the winding state of the mainspring when it is assembled can be easily fixed, it is possible to reduce the variation in the driving characteristics of the mainspring mechanism. Examples of the attachment means include an attachment structure such as an attachment hole, a projection (boss) for performing caulking, or the like.

[0049] In the present invention, it is preferable that the attaching means is constituted by an attaching structure physically integrated in the driving force accumulating portion. Examples of the physically integrated mounting structure include integration by caulking, welding, welding, or the like. Thereby, the rigidity of the mounting structure can be increased. Here, it is desirable to configure the mounting structure with a part of the processed hoop material (band-shaped material) in order to reduce costs and increase the degree of freedom of the mounting structure.

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 rotating member to the braking body.

According to the present invention, when excessive stress is applied from the outside or when the braking force of the braking unit increases due to a temperature drop or the like, the slip means slips to suppress the transmission of rotation, thereby accumulating the driving force. Since the load applied to the section and the braking section is reduced, damage and destruction of the mainspring mechanism can be prevented.

[0052] In the present invention, it is preferable that the brake is in contact with the flowable material, and the slip surface of the slip means is disposed in the flowable material.

According to the present invention, since the slip surface of the slip means is disposed in the fluid material, it is possible to obtain a lubricating effect and a cooling effect by the fluid material, and to prevent seizure and wear. The slip state can be stabilized.

In the present invention, it is preferable to provide a rotation intermittent means capable of intermittently transmitting the rotation in a rotation transmission path from the rotating member to the braking body.

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

In the present invention, the rotation interrupting means interrupts rotation transmission when the driving force accumulating portion accumulates driving force, and transmits rotation when the driving force accumulating portion releases the driving force. It is preferable that it is comprised as follows.

According to the present invention, when the driving force is stored in the driving force accumulating portion, the rotation transmission is interrupted by the rotation interrupting means, so that an excessive stress is applied from the outside or the viscous resistance of the fluid material is reduced. When a braking unit that generates a braking force by using a brake is provided, for example, when the braking force becomes excessive due to a decrease in the temperature of the fluid substance due to a decrease in the environmental temperature, the driving force accumulation unit and the braking Damage or destruction of the part can be prevented.

Next, an apparatus according to the present invention includes the mainspring mechanism described above, and an opening / closing section 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 opens and closes by rotating about a hinge axis (eg, a rotary opening and closing structure such as a rice cooker and a foldable 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.

Further, an apparatus according to the present invention includes the mainspring mechanism described above, and a movable part 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.

[0062]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a mainspring mechanism according to the present invention.

[First Embodiment] FIG. 1 is a longitudinal sectional view of a first embodiment of a mainspring mechanism according to the present invention, and FIG. 2 is an exploded perspective view of the first embodiment. In this embodiment, a shaft-shaped core 10 constituting a rotating member and a core 1
A spiral spring 11 having an inner end 11a connected to the mounting portion 10a of the main spring 0, a barrel 12 and a barrel lid 13 constituting a spring case for housing the spring 11 are provided. The barrel 12 and barrel lid 13 support the core 10 and the barrel 1
An outer peripheral inner surface surrounding the second spring housing portion 12 a is connected to an outer end 11 b of the mainspring 11.

A dish-shaped brake case 14 is press-fitted and fixed to the lower end of the barrel 12 from below in a fitted state. A disc-shaped braking plate 15 is disposed coaxially with the winding core 10 in the housing recess 14 a of the braking case 14. A central projection 15a projecting upward is formed at the center of the brake plate 15, and an uneven joint 15b having an uneven shape in the rotation direction is formed at the upper end of the central projection 15a. A concave portion 15c is formed on the back side of the central convex portion 15a in the brake plate 15, and a central convex portion 14b formed in the central portion of the braking case 14 is slidably inserted into the concave portion 15c. A plurality of openings 15d are formed in the periphery of the brake plate 15 and are arranged in the rotation direction and penetrate vertically.

The upper end of the core 10 is formed with a rotation operation groove 10c which can be engaged with a tool such as a flathead screwdriver. At the lower end of the winding core 10, an uneven joint 10b having an uneven shape in the rotational direction is formed, and the uneven joint 10b is provided with the uneven joint 15 of the brake plate 15.
b engages and engages the winding core 10 and the brake plate 15 in the rotational direction. The outer periphery of the central convex portion 15a of the brake plate 15 is rotatably supported on the inner periphery of the central hole 12b of the barrel 12 so as to be rotatable.

The core 10 protrudes upward from the barrel cover 13, and the protruding portion is provided with output means,
An output gear 18 having teeth 18a is mounted and fixed by press fitting or the like, and is configured to rotate with the core 10.

In this embodiment, the barrel 12 and the barrel lid 1 are used.
3 are fixed, and these support the core 10,
The barrel cover 13 may be rotatably attached to the barrel 12, and the core 10 and the barrel cover 13 may be integrally formed or fixed. In this case,
The barrel cover 13 has a function of sealing the opening of the barrel 12 as in the present embodiment, but is configured so that the barrel cover 13 rotates together with the core 20.

The core 10, the mainspring 11, and the barrel 1
The main part of the mainspring mechanism consisting of two
It is preferred that a slipping attachment for preventing the winding excessively 1 is incorporated. This slipping attachment is constituted by, for example, an arc-shaped frame pressed against the inner peripheral surface of the barrel 12 by its own elasticity, and by connecting the outer end of the mainspring 11 to this arc-shaped frame, the slipping attachment is usually formed. Although the arc-shaped frame is pressed into contact with the barrel 12 and integrated therewith, when the mainspring 11 is wound to a certain extent, the arc-shaped frame slides against the barrel 12 so that the spring 11 is overwound. It is configured to prevent the

The recessed portion 14a of the braking case 14 is provided with a fluid substance 16 such as oil composed of silicone oil or the like.
Is filled. The brake plate 15 is configured to receive a predetermined rotation resistance due to a flow (viscosity) resistance between a fluid and a solid between the brake plate 15 and the flow material 16 when rotating in the flow material 16. I have. Flowable substance 16
Is filled in a space sealed from the outside by the braking case 14 and the bottom surface 12 d of the barrel 12. A seal 17 made of a ring-shaped packing or the like is interposed between the bottom surface 12 d of the barrel 12 and the surface on the center side of the brake plate 15.
And the core 10 are prevented from leaking out.

In the present embodiment, as shown in FIG. 2, a driving force accumulating section 10A having the above-mentioned mainspring 11, barrel 12 and barrel lid 13 as components, barrel 12, brake case 14, brake plate 15, fluid substance 16 And a braking portion 10B including the sealing material 17 as a constituent element.

In this embodiment, the core 10 and the barrel 1
The mainspring 11 can be tightened by relatively rotating the mainspring 2. The wound spring 11 accumulates rotational energy, and when one of the core 10 and the barrel 12 is released, the released member rotates in the direction opposite to the direction of winding. At this time, along with this rotation, the brake plate 15 joined to the winding core 10 in the rotational direction, the barrel 12 and the brake case 14 fitted and fixed thereto rotate relatively, so that the brake plate 15 Rotational resistance is generated between the barrel and the barrel 12 and the braking case 14 via the fluid substance 16. This rotation resistance usually increases monotonically with the rotation speed, and thus acts to suppress fluctuations in the rotation speed.

The mainspring 11 includes a barrel 12 and a barrel lid 13.
Because it is closed by the dust, it is difficult for dust to enter the mainspring accommodating portion, and the life of the mainspring 11 can be extended. In order to make the operation of the mainspring 11 smooth and to enhance the durability, high-viscosity grease is applied to the mainspring 1.
In some cases, the grease can be prevented from leaking because the mainspring housing is sealed.

The winding core 10 is provided in the central hole 12 of the barrel 12.
b, the core 10 is rotatably supported.
Is provided at a position closer to the axis of the core 10 than the mounting portion 10a of the core 10 attached to the inner end 11a of the mainspring 11, so that the position at which the core 10 Also, since the bearing portion is located at a position with a smaller diameter when viewed in the radial direction, the bearing load such as frictional resistance of the bearing portion can be reduced, and the driving force of the mainspring 11 can be efficiently output. It becomes possible to do. That is, the driving force of the mainspring 11 is applied to the outer peripheral side of the bearing portion of the core 10, so that the core 10 is easily rotated. Therefore, the driving force can be efficiently converted to the rotational force of the core 10. it can.

In this embodiment, the barrel 12 and the brake case 1
Since the space (brake body accommodating portion) for accommodating the brake plate 15 is configured by the attachment of the first and fourth members, the number of parts can be reduced to a minimum without providing fine parts or a complicated structure. Further, since the structure can be made extremely simple, parts costs and assembly costs can be reduced, and manufacturing costs can be reduced. Further, the above structure facilitates a reduction in thickness, and can be made compact as a whole.

Further, since the winding core 10 and the brake plate 15 are formed separately, the assembling is easy and the processing of the parts becomes easy. Further, the brake plate 15 is connected to the central hole 1 of the barrel 12.
2b and the braking case 14
Are also configured to fit in the barrel 12.
Each part can be assembled accurately with the barrel 12 as a center.

The braking case 14 is formed in a dish with an edge.
The outer peripheral portion has a structure that rises in the axial direction, and the outer peripheral portion is configured to fit into the barrel 12, so that the fluid substance 16 is easily filled.
Is difficult to leak.

Further, since the opening 15d is formed in the braking plate 15, the flowing material 16 can be passed through the opening 15d after filling the braking case 14 with the flowing material 16, so that the braking plate 15 is inserted into the flowing material 16. It becomes easy to immerse, and the rotation resistance generated between the brake plate 15 and the flowing material 16 can be increased by forming the opening 15d.

In the mainspring mechanism of the present embodiment, for example, a tool or the like is engaged with the rotation operation groove 10c to relatively rotate the output gear 18 and the barrel 12 so that the mainspring 11 is wound up to a certain extent. The output gear 18 can be easily connected to or incorporated into various devices by engaging the output gear 18 with other gears or racks in a state in which the wound state is held by the rotation operation groove 10c.

[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, since the same mainspring 21, barrel barrel 23, and output gear 28 as those in the first embodiment are provided, their description is omitted.

In the present embodiment, the barrel 22 is formed in a cylindrical shape that is open at both the upper and lower parts.
The outer end 21b of the mainspring 21 is connected as in the first embodiment. A barrel cover 23 is attached to the upper part of the barrel 22, and the upper brake case 24A is fitted (press-fitted) to the lower part of the barrel 22, so that the mainspring housing is sealed.

The core 20, which is a rotating member, has a central hole 23a of the barrel cover 23 and a central hole 2a of the upper braking case 24A.
4a, and is rotatably supported by the
Is connected to an inner end 21a of the mainspring 21. Core 2
A rotation operation groove 10c similar to that of the first embodiment is formed at the upper end of 0, and an uneven joint 20b having an uneven shape in the rotation direction is formed at the lower end of the core 20. The concavo-convex joint 25b of the brake plate 25 is fitted into the concavo-convex joint 20b, and the winding core 20 and the brake plate 25 are engaged in the rotational direction. In the present embodiment, the concavo-convex joint 20b of the core 20 is rotatably supported on the central hole 24a of the upper braking case 24A, and the brake plate 2 is provided inside the concavo-convex joint 20b.
The five concave-convex joint portions 25b are configured to be fitted. The barrel 22 and the upper braking case 24A are fitted (press-fit) and fixed to each other.

The braking portion has a structure in which a braking plate 25 is accommodated in a braking body accommodating portion constituted by the upper braking case 24A and the lower braking case 24B fitted to the upper braking case 24A. have. Brake plate 25
Has a central convex portion 25a, and the concave / convex joint portion 25b is formed on the central convex portion 25a. A concave portion 25c is formed on the back surface side of the central convex portion 25a, and a central convex portion 24b provided on the braking lower case 24B is slidably inserted into the concave portion 25c. An annular groove 25d is formed around the central convex portion 25a.
A sealing member 27 formed of a ring-shaped packing or the like for sealing between the upper case 24A and the upper case 24A is mounted. Further, the same fluid substance 26 as in the first embodiment is accommodated in the brake body accommodation section.

In this embodiment, as shown in FIG. 4, a driving force accumulating section 20A composed of a winding core 20, a mainspring 21, a barrel 22 and a barrel lid 23, a braking plate 25, a braking upper case 24A, a braking A lower case 24 </ b> B, a braking substance 20 </ b> B including a fluid material 26 and a sealing material 27 as components are provided. Here, since the braking unit 20B is unitized by the braking plate 25, the upper braking case 24A, the lower braking case 24B, the flowable material 26, and the sealing material 27, the driving force after completely assembling the braking unit 20B in advance. It becomes possible to connect the storage unit and its parts, and as a result, it becomes easy to store the brake unit in the assembling process, it becomes difficult for the fluid substance 26 to leak from the brake unit, The handling and management of parts becomes easy, for example, a braking unit having the following can be prepared.

More specifically, in this embodiment,
An assembly of the winding core 20, the mainspring 21, and the barrel 22 (in addition to these, the barrel lid 23 and the output gear 28 may be incorporated in advance) is connected to the completed braking unit 20B. it can. Therefore, the driving force accumulation unit 20
After assembling A and the braking portion 20B in parallel, it is possible to connect them to complete the spring mechanism.

In this embodiment, an annular groove 2 is provided between the barrel 22 and the upper braking case 24A in their outer peripheral regions.
0c is formed, so that the tip of a tool or a jig such as a flathead screwdriver is inserted into the groove 20c to pry open it so that the barrel 22 and the upper braking case 24A that are fitted and fixed to each other are separated from each other. Becomes possible. Therefore, during or after the manufacturing process, the driving force accumulation unit 20A and the braking unit 20B are separated from each other,
When either one of the A and the braking unit 20B is replaced or the inside of the driving force accumulating unit 20A is repaired, the work can be easily performed.

[Configuration Example of Output Means] Next, FIGS.
A configuration example of an output unit that can be applied to the first and second embodiments and each embodiment described below will be described with reference to FIG. The output means shown in FIG. 5 is a thin output gear 18A whose axial length is shorter than that of the above embodiment, and the output means shown in FIG. 6 is a thick output gear whose axial length is longer than that of the above embodiment. The output means shown in FIG. 7 is a large-diameter output gear 18C whose diameter is larger than that of the above embodiment. Any of the output gears can be used in place of the above embodiment, or can be easily exchanged with each other, and the thickness and diameter of the output means are limited by the driving force accumulating unit and the braking unit. Not
The degree of freedom of the shape of the output means can be ensured. Each output means is attached to the core 10 which is a rotating member. However, the shape (length and diameter) of the core 10 may be individually configured to be suitable for each output means. Alternatively, each output means may be configured to be compatible with the common winding core 10.

In the embodiment having each output gear described above,
The structure is suitable when the barrels 12 and 22 are fixed and the output gear is used as an input / output shaft. For example, when the present embodiment is applied to an automatic drawer mechanism for a drawer mounted on a vehicle, the output gear is engaged with a rack (not shown) provided in the drawer, and when the drawer is pushed in, the output gear and the core rotate. The mainspring is tightened, and the drawer is stopped by a lock mechanism (not shown).
When the drawer is lightly pushed in, the lock mechanism is released, and the drawer is automatically extended under braking by an output gear that is rotationally driven by rotational energy generated by the mainspring.

The output means shown in FIG. 8 includes a cylindrical member 18D attached to the core 10 and a cylindrical member 18D.
And a flexible band material 19 attached to the outer peripheral surface of the flexible member. This output means is provided together with the core 10 and the cylindrical member 18.
When D rotates, the band material 19 is wound up. Therefore, by attaching another member to the tip of the band member 19, the other member can be operated linearly by the spring mechanism. For example, by connecting the end of the band material 19 to the drawer, the spring is wound tightly by pushing the drawer and locked by a lock mechanism (not shown).
When the lock mechanism is released, the drawer is released, and the drawer can be pulled out slowly while receiving the braking force of the braking unit based on the driving force of the mainspring.

[Third Embodiment] Next, a third embodiment according to the present invention will be described with reference to FIG. In this embodiment, a mainspring 31 and a barrel 32 similar to those of the first embodiment are used.
And a barrel cover 33. In this embodiment, the description of the same parts as those in the first embodiment will be omitted.

The winding core 30 is basically the same as the first and second embodiments, except that a fitting projection 30b is formed at the lower end thereof instead of the above-mentioned uneven joint. . A central convex portion 35a is formed on the brake plate 35, and a fitting concave portion 35b is formed at an upper end portion of the central convex portion 35a so as to be fitted to the fitting convex portion 30b with an interference. Have been. The fitting protrusion 30b and the fitting recess 35b are press-fitted to each other, and fix the core 30 and the brake plate 35. A slight gap is formed between the outer peripheral portion of the central convex portion 35a of the braking plate 35 and the central hole portion 32b of the barrel 32 so that they do not contact each other. In addition, braking case 3
4 does not have a central projection that engages with the braking plate 35.

In the present embodiment, the core 30 and the braking plate 35 are integrally joined by press-fitting, and the core 30 is
The required level of assembling accuracy between the parts is relaxed, and the assembling can be easily performed, for example, because there is no need to provide a guide structure between the braking case 34 and the braking plate 35. . Further, since the braking plate 35 is not directly bearinged, the bearing resistance thereof can be reduced, and the operation can be performed more smoothly.

[Fourth Embodiment] Next, FIG. 10 and FIG.
A fourth embodiment according to the present invention will be described with reference to FIG. The basic structure of this embodiment is the same as that of the second embodiment, and the core 40, the mainspring 41, the barrel 42, the barrel lid 4
3, the upper braking case 44A, the lower braking case 44B, the flowable substance 46, the sealing material 47, and the output gear 48 are the same as those of the second embodiment, and thus the description thereof is omitted.

In this embodiment, the upper braking case 44
A fluid body 46 is filled in a brake body accommodating portion constituted by the A and the lower braking case 44B. In the fluid substance 46, a central braking member 45 connected to the core 40 and a central braking member 45 are provided. The fitted outer peripheral braking plate 49 is arranged. The central braking member 45 has a central convex portion 45a.
And the concavo-convex joint 4 formed on the central convex portion 45a and rotationally engaged with the concavo-convex joint 40b of the core 40.
5b, a concave portion 45c fitted and supported by the central convex portion 44b of the lower braking case 44B, and an annular concave portion 45d formed around the central convex portion 45a and accommodating the sealing material 47.
Step surfaces 45e and 45f formed on the outer peripheral portion are provided.

The step surfaces 45e, 45f of the central braking member 45
, An outer peripheral braking plate 49 also shown in FIG. 11 is fitted and fixed. The outer peripheral brake plate 49 is formed of a material having elasticity, for example, stainless steel, spring steel, or the like, has a substantially ring-shaped planar shape, and has a central opening 49A and protrudes toward the center from the opening edge of the central opening 49A. Inner circumference convex part 4 formed
9B and a slit 49C formed so as to cut the ring shape at a part in the circumferential direction. The inner peripheral convex portion 49B of the outer peripheral braking plate 49 is connected to the central braking member 45.
, And the opening edge of the central opening 49A is elastically pressed against the step surface 45f of the central braking member 45. Step surface 45
e is slightly inclined so as to reduce the diameter downward in the vertical direction, and the step surface 45f is configured to be substantially horizontal. Therefore, by pressing the central braking member 45 into the central opening 49A of the outer peripheral braking plate 49 from below, the stepped surface 4 of the central braking member 45 snaps into the central opening 49A.
5e is fitted, the fitting state is maintained by the inclination of the step surface 45e, and the opening edge of the central opening 49A is pressed against the lower step surface 45f.

In this embodiment, when the winding core 40 is rotated by the driving force of the mainspring 41 or when the external stress applied via the output gear 48 as the output means has a stress value of a certain level or less. The central braking member 45 and the outer peripheral braking plate 49 are integrally rotated by the frictional force (static friction) of the elastic fitting portion to generate a predetermined braking force. On the other hand, when the external stress applied to the core 40 becomes excessive, or when the braking force increases due to a decrease in the viscosity of the fluid material 46 due to a decrease in temperature, the central braking member 45 and the outer peripheral braking plate 4
When a stress exceeding the static frictional force is applied between the central braking member 9 and the central braking member 45, the central braking member 45 and the outer peripheral braking plate 49 slide with each other, and the central braking member 45 receives dynamic frictional force and rotates.
The braking force of the braking unit decreases. Therefore, when excessive stress is applied to the mainspring mechanism from the outside, or when the viscosity of the fluid substance 46 increases due to a decrease in temperature and the braking force becomes excessive, the braking portion and the core 40 are damaged. Or breakage can be prevented.

The slip means as in this embodiment may be provided, for example, at a connection portion between a rotating member such as a winding core and a braking body such as a braking plate. Also, instead of the slip means as in the present embodiment, a clutch means configured to release the rotation transmission only in the winding direction of the mainspring may be provided instead of the slip means in the present embodiment, or As described above, it may be provided at the connection portion between the rotating member and the braking body. This clutch means is capable of preventing damage and destruction of the braking portion when the external force applied during winding of the mainspring becomes excessive, and has substantially the same effect as the slip means.

[Fifth Embodiment] Next, FIG. 12 and FIG.
A fifth embodiment according to the present invention will be described with reference to FIG. In this embodiment, a core 5 similar to that of the first embodiment is used.
0, a mainspring 51, a barrel 52, a brake case 54, a brake plate 55, and an output gear 58, and thus description thereof is omitted.

In the present embodiment, a plurality of engaging holes (holes may be provided) along a circular arc having a predetermined radius centered on the axis of the winding core 10 in the barrel cover 53 mounted on the upper part of the barrel 52. .) 53b are formed. The engagement holes 53b are arranged along an arc having the same diameter as the position where the teeth 58a of the output gear 58 are formed.

Further, a regulating pin 59 having a tip portion 59a insertable into the engagement hole 53b is provided. The restricting pin 59 has a head 59b having a diameter capable of engaging with a pair of adjacent teeth 58a of the output gear 58. As shown in FIG. 13, when the tip portion 59a of the regulating pin 59 is inserted into one of the engagement holes 53b provided in the barrel cover 53 so as to avoid the teeth 58a of the output gear 58, as shown in FIG. As shown in FIG.
9b comes into contact with and is supported on the end surfaces of the pair of adjacent teeth 58a. In this state, the regulating pin 59
Thus, the rotation of the output gear 58 is prevented.

In this embodiment, since the rotation of the output gear 58 can be prevented by the restriction pin 59, the restriction pin 59 is mounted while the mainspring 51 is appropriately tightened. State can be maintained. Also, since the engagement holes 53b for inserting the restriction pins 59 are provided at a plurality of locations, the output gear 5
The rotation of the mainspring 8 can be restricted at a plurality of restricting positions (positions based on the driving force accumulation unit), and a plurality of differently tightened states of the mainspring 51 can be maintained. For example, the engagement hole 53b is inserted into the teeth 58a of the output gear 58.
By forming a plurality at a period different from the forming pitch of the spring, the tightening state of the mainspring 51 held by the regulating pin 59 can be appropriately adjusted.

[Sixth Embodiment] Next, FIG. 14 and FIG.
A sixth embodiment according to the present invention will be described with reference to FIG. In this embodiment, a core 6 similar to that of the first embodiment is used.
0, the mainspring 61, the barrel 62, the brake case 64, the brake plate 65, and the output gear 68, the description thereof is omitted.

In this embodiment, a plurality of engaging holes (or holes) 63c are formed on the upper surface of the barrel cover 63.
An engagement hole 64c is also formed on the surface of the braking case 64. Here, the engaging hole 63c and the engaging hole 64c are formed at positions corresponding to each other.
The engaging projections 69a and 69b of the regulating member 69 are engaged with 4c. The regulating member 69 is formed in a substantially U-shape as a whole, and has teeth 68a of the output gear 68 at the upper end.
Is provided.

The regulating member 69 is connected to the barrel cover 6 as described above.
When the third gear 3 is engaged with the braking case 64, the regulating portion 69c regulates the output gear 68 so as to prevent its rotation. Also in this case, similarly to the fifth embodiment, it is possible to restrict the rotation of the output gear 68 at a plurality of restricting positions (positions based on the driving force accumulating unit),
It is possible to maintain a plurality of different tightened states of the mainspring 61. Particularly, in the present embodiment, the regulating member 69 is engaged with the output member 68 in a state where the regulating member 69 is engaged with a plurality of different positions (two places) of the driving force accumulating portion and the braking portion. Can be more reliably positioned, and the tightened state of the mainspring can be more reliably maintained.

[Seventh Embodiment] Next, FIG. 16 and FIG.
A sixth embodiment according to the present invention will be described with reference to FIG. In this embodiment, a core 7 similar to that of the first embodiment is used.
0, the mainspring 71, the barrel 72, the brake case 74, the brake plate 75, and the output gear 78, the description of which is omitted.

In this embodiment, a plurality of engagement holes (or holes) 73c are formed on the upper surface of the barrel cover 73.
These engagement holes 73c are all arranged on the outer peripheral side of the output gear 78. Further, a regulating pin 79A having a tip portion 79a that can be inserted into the engaging hole 73c and an enlarged head portion 79b is provided, and an insertion hole 79c through which the regulating pin 79A can be inserted, and an upper end of the core 70. And a regulating lever 79B having an engaging projection 79d that engages with the rotation operation groove 70c provided in the control lever 79B.

The control pin 79A and the control lever 79B
As shown in FIG. 16, the restricting pin 79A is inserted through the insertion hole 79c of the restricting lever 79B, and the head 79b is engaged with the restricting lever 79B. By inserting the engaging projection 79d of the regulating lever 79B into the rotation operation groove 70c of the core 70, the rotation of the core 70 can be regulated. 71 can be held in an appropriate wound state.

In the above-described fifth to seventh embodiments, when the above-mentioned mainspring mechanism is set inside various devices, the mainspring is tightened in advance by using a rotary operation groove or the like, and then the above-described restriction is applied. Preferably, the tightening state is maintained by the means, and when the spring mechanism is set inside the apparatus, the restricting means is removed or the restricting state is released. With this configuration, it is possible to reduce the variation in the torque setting of the mainspring mechanism when setting the mainspring inside the apparatus, and it is possible to easily perform the setting operation.

[Example of Shape of Core] Next, an example of the shape of a core that can be used in each of the above-described embodiments and each of the embodiments described below will be described with reference to FIG. FIG.
8 is a plan view of the winding core 10. In the following description, the first
Although described as corresponding to the mainspring mechanism of the embodiment, this core can be used in other embodiments as well.

The core 10 has a mounting portion 10a which engages with the inner end 11a of the mainspring 11 and protrudes in a hook shape (claw shape).
From the mounting portion 10a, the outer diameter gradually increases along the spiral shape of the mainspring 11 (for example, when the mainspring 11 is formed to extend counterclockwise from the inner end 11a as shown in the drawing). Outer peripheral surface 10A with increased shape
It has. Examples of the shape of the outer peripheral surface 10A include an Archimedean spiral shape (conformal spiral r = aθ; r is a radius, a is an arbitrary constant, and θ is an angle). By providing such an outer peripheral surface 10A, the mainspring 11 is provided.
Is smoothly performed, and smooth driving characteristics can be obtained.

[Eighth Embodiment] Next, an eighth embodiment according to the present invention will be described with reference to FIG. In this embodiment, the winding core 80, the mainspring 81, the barrel 8
2. Since the barrel cover 83, the braking plate 85, the fluid substance 86, the sealing material 87, and the output gear 88 are basically the same as those in the first embodiment, their description will be omitted.

In this embodiment, the braking case 84
19, unlike the above embodiments, includes a cylindrical portion 84c protruding on the outer periphery as shown in FIG. 19, and a piston 89A is slidably disposed inside the cylindrical portion 84c. The piston 89A is provided with a closing plug 8 fixed to the outer end of the cylindrical portion 84c.
9B, the piston 89A can be rotated in the axial direction of the cylindrical portion 84c by rotating the piston 89A. Also, piston 8
9A is screwed with a lock nut 89C.
9C prevents the piston 89A from entering the inside of the brake case 84.

The inside of the brake case 84 is filled with a fluid substance 86 over and under the brake plate 85.
The volume of the space (braking body housing part) for housing the piston 8
9A is increased or decreased by moving back and forth in the cylindrical portion 84c.
As a result, the contact area of the flowable substance 86 with the surface of the braking plate 85 can be increased or decreased, so that the braking force applied to the core 80 can be adjusted by operating the piston 89A. More specifically, when the piston 89A is pulled out of the brake case 84 from the state shown in the figure, the volume of the brake body accommodating portion increases, so that the contact area between the fluid substance 86 and the brake plate 85 decreases, and the brake plate 85
, The braking force decreases. Conversely, by pushing the piston 89A into the interior as shown in the drawing from the state where the piston 89A is pulled out, the volume of the brake body accommodating portion is reduced, so that the contact area between the fluid substance 86 and the brake plate 85 increases. , The braking force increases.

[Ninth Embodiment] Next, a ninth embodiment according to the present invention will be described with reference to FIG. In this embodiment, the winding core 90, the mainspring 91, the barrel 92, the barrel lid 93, the brake case 94, the brake body 95, and the fluid substance 96 are basically the same as those in the first embodiment, and therefore description thereof is omitted. I do.

The present embodiment includes the same members as those of the first embodiment. However, in the present embodiment, the above-described sealing material is not disposed between the barrel 92 and the brake 95. Barrel 9
The second bottom surface 92d is provided with a concave portion 92e having a surface formed so as to be drawn upward so as to be separated from the surface of the brake plate 95 toward the central hole portion 92b. Then, the surface of the braking body 95 and the bottom surface 9 of the barrel 92
2d gradually increases toward the connecting portion between the winding core 90 and the brake 95, that is, between the recess 92e and the surface near the center of the brake plate 95. It is configured.

More specifically, in the braking body housing,
Due to the provision of the recess 92e, the distance between the upper surface of the braking plate 95 and the bottom surface 92d is increased on the inner peripheral side. The bottom surface 92d and the brake plate 95 are connected to the brake plate 9
5 has a substantially constant interval in the region where the braking action portion is located except for the central portion, and the fluid substance 96 is filled so as to be in contact with the upper and lower portions of the braking action portion of the brake plate 95. , Does not exist around the central portion of the brake plate 95. The fluid substance 96 is arranged so as to be limited to the above-mentioned braking action section having a small gap due to its surface tension, and is configured so as not to enter between the recessed section 92 e having a wide gap and the surface near the center of the brake plate 95. Have been.

In the present embodiment, as described above, the recess 9
By providing 2e, the fluid substance 96 has a structure that does not easily enter the central portion of the brake plate 95, so that a sealing material such as packing or a complicated structure for sealing is not required, and these sealing materials and sealing structure are not required. In addition, it is possible to suppress unnecessary rotation resistance (a resistance component having no effect of suppressing fluctuations in rotation speed) caused by the above, and to easily configure the structure of the braking unit.

The sealing method using the surface tension of the fluid material as in the present embodiment can be applied to all the embodiments described in this specification. However, the effect of preventing leakage due to the surface tension of the fluid material is effective when the viscosity of the fluid material is not so high. If the viscosity of the fluid substance 96 is high, the action due to the surface tension is weakened, and the fluid substance 96 may leak to the core 90 along the bottom surface of the barrel 92. In this case, it is preferable to prevent leakage of the fluid substance by installing a sealing material such as a packing.

[Tenth Embodiment] Next, FIG. 21 and FIG.
A tenth embodiment according to the present invention will be described with reference to FIG. In this embodiment, a winding core 100, a mainspring 101, and a brake case 10 are configured similarly to the first embodiment.
4, the brake plate 105, the fluid substance 106, the sealing material 107, and the output gear 108, so that the description thereof is omitted.

In the present embodiment, the barrel 102 and the barrel lid 103 connected to the barrel 102 are provided with flange portions 102s, 103s projecting to the outer peripheral side so as to overlap each other. An insertion hole 102t is formed in the flange portion 102s, and a mounting hole portion 103t inserted in the insertion hole 102t is formed in the flange portion 103s. The mounting hole 103t is used for fixing to various devices (not shown) using a bolt or a fixing screw.

In this embodiment, although the barrel 102 and barrel lid 103 constituting the driving force accumulating unit are mounted to the other members and various devices by the mounting holes 103t which are integrally formed. Since the barrel 102 and the barrel lid 103 are parts of the mainspring mechanism to which the largest stress is applied, they are inherently made of a material having high rigidity, so that the mainspring mechanism can be securely and highly rigidly attached. . In particular, in the portion having the mounting hole 103t, the flange 102
s and the flange 103s of the barrel cover 103 are configured to overlap each other, so that higher rigidity can be obtained.

Further, in this embodiment, since the driving force accumulating portion is configured to be attached to other members or various devices, the mounting posture of the driving force accumulating portion with respect to other members or various devices is always fixed. Can be Therefore,
For example, when the winding state of the mainspring 101 is set to a predetermined state and incorporated into a device or the like, the driving force accumulating unit including the mainspring 101 is attached in a fixed posture, thereby reducing variations in the winding state of the mainspring in the assembled state. be able to.

[Eleventh Embodiment] Next, an eleventh embodiment according to the present invention will be described with reference to FIG. In this embodiment, the core 110, the mainspring 111, the barrel 112, the barrel lid 113, the brake case 114, the brake plate 115, and the fluid substance 1 are configured substantially in the same manner as in the tenth embodiment.
16, the seal member 117 and the output gear 118, the description thereof is omitted.

In the present embodiment, a part of the flange portion 113 provided on the barrel cover 113 extends upward to form a holding frame portion 113u having a substantially U-shaped cross section. A rack member 119 meshed with the output gear 118 is accommodated inside the holding frame 113u, and is guided by the holding frame 113u so as to be movable in a direction perpendicular to the plane of the drawing.

In this embodiment, the rack member 119
Is moved in a direction perpendicular to the plane of the drawing, the output gear 1
18 rotates and the mainspring 111 can be wound through the core 110. When the mainspring 111 is wound, the output gear 118 is driven to rotate via the winding core 110, and the rack member 119 moves in a direction perpendicular to the plane of the drawing. That is, the present embodiment includes a rack and a pinion, and can be incorporated in another product or component as a direct-acting mainspring module with the same configuration.

[Twelfth Embodiment] Next, FIG. 24 and FIG.
A twelfth embodiment according to the present invention will be described with reference to FIG. This embodiment has a core 120, a mainspring 121, a barrel 122, and a barrel lid 123, which are configured in substantially the same manner as the above embodiments. , Spring 121
Is connected to the barrel 122. Core 1
20 is fixed in a state where it is regulated in the rotation direction by the train wheel bridge I and the base plate J.
And barrel barrel 123 are rotatably supported. Barrel 12
A gear portion 122 c is provided on the outer peripheral portion of the second gear 2, and the gear portion 122 c meshes with the pinion of the second gear 126. Second
The shaft of the gear 126 protrudes outside through the train wheel bridge I,
It is mounted and fixed to an output gear 128 provided with teeth 128a. The gear portion of the second gear 126 meshes with the pinion of the third gear 127, and the gear portion of the third gear 127 meshes with the pinion of the brake 125. Each of the second gear 126, the third gear 127, and the brake 125 is provided with the above-mentioned train wheel bridge I and the main plate J.
And are rotatably supported.

The brake 125 has a plurality of brake blades 12 on its outer periphery.
5a, the braking member 125 is disposed in a gas (for example, air) 129, and an airflow suppressing wall 124 is disposed so as to surround the braking member 125. The airflow suppression wall 124 includes a portion surrounding the braking body 125 in an arc shape or a cylindrical shape from the periphery, and the braking blade 1 of the braking body 125.
25a and a plate-like portion disposed adjacent to the axis in the axial direction. One or more openings 124a are formed in the airflow suppression wall 124.

In this embodiment, the mainspring 121 is connected to a brake 125 having braking blades 125a in a rotational direction via a train of wheels, and the brake 125 is rotated in the gas 129 like a windmill. It is configured such that a braking force is generated by the generated gas resistance. In the present embodiment, since the driving force of the mainspring 121 is increased and transmitted to the braking body 125, the mainspring 121 can be sufficiently braked even if the braking force of the braking body 125 is somewhat weak.

At this time, the airflow suppressing wall 124 is
It has a function of preventing the airflow generated by the rotation of 25 from diffusing to the surroundings and increasing the rotational resistance of the brake 125, that is, the braking force. One or more openings 124a are formed in the airflow suppression wall 124, and the openings 124a
The configuration is such that the rotational resistance of the brake 125 is adjusted by the number, shape, opening area, etc.

Further, it is preferable to provide an interval adjusting means configured to be able to change the interval between the braking member 125 and the airflow suppressing wall 124 disposed therearound. 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 airflow suppressing wall 124 can be cited.

According to this embodiment, it is not necessary to adjust the amount of the fluid substance or to prevent the leakage of the fluid substance as in the above-described embodiments, so that the structure is simple. And assembly can be easily performed. Further, in the above-described embodiment, the braking force fluctuates due to a change in viscosity of the fluid material due to a temperature change, but in the present embodiment, the fluctuation of the braking force due to a temperature change can be reduced.

[Thirteenth Embodiment] Next, FIG. 26 and FIG.
A thirteenth embodiment according to the present invention will be described with reference to FIG. In this embodiment, the same winding core 130, mainspring 131, barrel 132, barrel lid 133,
Since it has the second gear 136, the third gear 137, and the output gear 138, the description thereof is omitted.

In the present embodiment, a permanent magnet 135m magnetized so as to have different magnetic poles in the rotation direction is provided on a brake 135 connected to the third gear 137, and around the brake 135. , A stator 134s made of a high magnetic permeability material (soft magnetic material) is disposed, and the stator 134s and the coil 13 including the magnetic core material connected thereto are arranged.
4c is provided. An electric load (electric resistance, clock circuit, etc.) having an appropriate impedance is connected to the coil 134c.

In the present embodiment, when the brake 135 rotates, an induced electromotive force is generated in the coil 134c of the electromagnetic derivative 134, and the induced electromotive force generates an induced current corresponding to the electric load. Then, a rotation resistance corresponding to the energy consumed by the electric load is applied to the braking body 135, and a braking force against the driving force of the mainspring 131 is generated.

According to this embodiment, no fluid material such as oil is used, so that the assembly is easy, and it is not necessary to finely adjust the braking force depending on the viscosity or amount of the fluid material, and the temperature change is not required. There is almost no change in the braking force due to this.

In this embodiment, means for adjusting an electric load, for example, a variable resistor provided as an electric load, etc.
This makes it possible to easily adjust the braking force.

FIG. 28 shows a circuit structure in which an electric load is connected to the coil 134c. Coil 1
34c includes a main coil 1341A for power generation and braking, and a sub coil 1341B for detecting the rotation speed of the braking body 135. The load circuit 1342 is connected to the main coil 1341A, and the output of the main coil 1341A is
And a storage device 13 such as a capacitor or a chemical secondary battery
49. The sub coil 1341B is connected to the comparator 1344, 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. Synchronous circuit 13
The reference signal output from the frequency dividing circuit 1347 which operates in response to the output of the oscillation circuit 1346 is input to the control circuit 45 and the control circuit 1343.

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. 29 shows a schematic configuration of the load circuit 1342. Load circuits 1342 include switches SW1 to S
W4 and electric resistances R1 to R1 connected in series to the respective switches.
A plurality of series circuits having R4 and R4 are connected in parallel, and the switches SW1 to SW4 are turned on / off by a control signal sent from the control circuit 1343, thereby finely reducing the electrical load (impedance) of the entire load circuit 1342. It can be changed.

Since a detection signal synchronized with the rotation speed of the brake 135 is obtained from the comparator 1344 according to the electromotive force generated in the sub coil 1348, this detection signal is synchronized with the reference signal to the control circuit 1343. 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.

[Fourteenth Embodiment] Next, a fourteenth embodiment of the present invention will be described.
As an embodiment, a mainspring mechanism shown in FIG. 30 will be described. This embodiment includes a winding core 140, a mainspring 141,
Barrel 142, upper braking case 144A, lower braking case 14
4B, a central braking member 145, a fluid substance 146, a sealing material 147, an output gear 148, and an outer peripheral braking plate 149, which have basically the same structure as the fourth embodiment.

In this embodiment, a protruding shaft portion 140b is provided at the lower end of the core 140, which is a rotating member, and a clutch spring 160 is attached to the protruding shaft portion 140b. This clutch spring 160 is used for the central braking member 1.
It is configured to engage with a protruding frame portion 145b provided at the central portion 145a of the fork 45 and control the manner of engagement between the winding core 140 and the central braking member 145 in the rotational direction as described later.

FIG. 31 shows a cross section of a portion where the protruding shaft portion 140b and the protruding frame portion 145b are connected via the clutch spring 160. As shown in this figure, the inner end 161 of the clutch spring 160 is inserted and fixed to the protruding shaft 140b. The clutch spring 160 includes a curved portion 162 which is bent from the inner end portion 161 and surrounds the outer periphery of the protruding shaft portion 140b, and is engaged with the protruding frame portion 145b apart from the protruding shaft portion 140b before the curved portion 162. A protruding outer end 163 is provided.

In FIG. 31, a winding core 140 having a protruding shaft portion 140b is configured to be rotatable counterclockwise (indicated by an arrow) in the figure with respect to a central braking member 145 having a protruding frame portion 145b. I have. On the other hand, when the core 140 is to rotate clockwise in the figure, the outer end 163 of the clutch spring 160 engages with the protruding frame 145b, so that the outer end 163 engages with the central braking member 145 in the rotational direction. Core 1
40 and the central braking member 145 rotate together.

As described above, in the present embodiment, the projecting shaft 140b, the projecting frame 145b, and the clutch spring 160 serve as rotary sliding portions when the core 140 rotates in one direction, and do not transmit rotation. However, when the core 140 rotates in the other direction, it is configured as a one-way clutch which is a rotation intermittent means configured to couple in the rotation direction and transmit the rotation.

In this embodiment, when the core 140 rotates in the one direction, the mainspring 141 is configured to be tightened.
The core 140 is configured to be rotationally driven in the other direction by the elastic force of the core 41.

In this embodiment, when the core 140 is driven to rotate in one direction via the output gear 148, the core 1
Since no rotation is transmitted between 40 and the central braking member 145, the core 140 can wind the mainspring 141 without receiving the braking torque.

On the other hand, when the core 140 is driven to rotate by the wound mainspring 141, the core 140
And the central braking member 145 are rotationally coupled via the clutch spring 160, so that the core 140 is
It rotates slowly while receiving the braking torque from 49.

Since this embodiment functions as described above,
Even if the mainspring 141 receives excessive driving torque when tightened, the core 140 does not receive the braking torque, so that damage or destruction of the internal mechanism can be prevented.
Further, even when the viscosity of the fluid substance increases due to a decrease in the temperature, the probability of damage or destruction of the internal mechanism does not increase, and the spring 141 is easily wound up regardless of the viscosity of the fluid substance. Can be.

Further, in the present embodiment, the driving force accumulating portion constituted by the mainspring 141 and the barrel 142 and the braking portion including the central braking member 145 and the outer peripheral braking plate 149 are integrally formed, and the clutch spring 160 Also, there is an advantage that a compact driving device can be configured with a very simple structure by the rotation intermittent means including.

[Fifteenth Embodiment] Next, a fifteenth 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 as its output means, a cylindrical member 18D
And a band member 19 whose base end is connected to the cylindrical member 18D. The tip of the band 19 is attached to the inner end of the drawer D.

In this embodiment, by pulling out the drawer D as shown in the figure, the mainspring in the mainspring mechanism Z is wound 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.

[Sixteenth Embodiment] Finally, a sixteenth 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 and swings 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.

[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 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 and 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. However, the spring is not limited to this, and any material or shape may be used as long as it generates torque by rotation. 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.

[0159]

As described above, according to the present invention,
Since the mainspring mechanism including the braking portion can be configured with a simple structure without increasing the number of parts, the manufacturing cost can be reduced and the size of the mechanism can be reduced.

Further, the rotational load such as a friction load is small.
Efficient driving can be performed, and it can be easily attached to various devices.

[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 an exploded perspective view schematically showing the structure of the first embodiment.

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

FIG. 4 is an exploded perspective view schematically showing the structure of the second embodiment.

FIG. 5 is a schematic perspective view schematically showing a configuration example of different output means.

FIG. 6 is a schematic perspective view schematically showing a configuration example of another different output unit.

FIG. 7 is a schematic perspective view schematically showing a configuration example of still another output means.

FIG. 8 is a schematic perspective view schematically showing a configuration example of another different output unit.

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

FIG. 10 is a longitudinal sectional view showing a structure of a fourth embodiment according to the present invention.

FIG. 11 is a plan view of an outer peripheral braking plate according to a fourth embodiment.

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

FIG. 13 is a schematic perspective view schematically showing the appearance of the fifth embodiment.

FIG. 14 is a longitudinal sectional view showing a structure of a sixth embodiment according to the present invention.

FIG. 15 is a schematic perspective view schematically showing the appearance of the sixth embodiment.

FIG. 16 is a longitudinal sectional view showing a structure of a seventh embodiment according to the present invention.

FIG. 17 is a schematic perspective view schematically showing the appearance of the seventh embodiment.

FIG. 18 is an enlarged plan view showing a detailed planar shape of a winding core.

FIG. 19 is a longitudinal sectional view showing a structure of an eighth embodiment according to the present invention.

FIG. 20 is a longitudinal sectional view showing a structure of a ninth embodiment according to the present invention.

FIG. 21 is a longitudinal sectional view showing a structure of a tenth embodiment according to the present invention.

FIG. 22 is a schematic perspective view schematically showing the appearance of the tenth embodiment.

FIG. 23 is a longitudinal sectional view showing a structure of an eleventh embodiment according to the present invention.

FIG. 24 is a longitudinal sectional view showing the structure of a twelfth embodiment according to the present invention.

FIG. 25 is a schematic plan view showing a plan structure of a twelfth embodiment;

FIG. 26 is a longitudinal sectional view showing a structure of a thirteenth embodiment according to the present invention.

FIG. 27 is a schematic plan view showing a plan structure of a thirteenth embodiment.

FIG. 28 is a schematic block diagram schematically showing a circuit configuration applicable to the thirteenth embodiment.

FIG. 29 is a schematic configuration diagram schematically showing a configuration of the load circuit shown in FIG. 28;

FIG. 30 is a longitudinal sectional view schematically showing a structure of a fourteenth embodiment according to the present invention.

FIG. 31 is a cross-sectional view schematically showing a connection structure between a rotating member (core) and a braking body according to a fourteenth embodiment of the present invention.

FIG. 32 is a schematic perspective view schematically showing the structure of a fifteenth embodiment according to the present invention.

FIG. 33 is a schematic perspective view schematically showing a structure of a sixteenth embodiment according to the present invention.

[Explanation of symbols]

10,20,30,40,50,60,70,80,9
0,100,110,120,130,140 Core 11,21,31,41,51,61,71,81,9
1, 101, 111, 121, 131, 141 Spring 12, 22, 32, 42, 52, 62, 72, 82, 9
2,102,112,122,132,142 Incense box 13,23,33,43,53,63,73,83,9
3, 103, 113, 123, 133 barrel cover 14, 34, 54, 64, 74, 84, 94, 104,
114 Brake case 44A, 144A Brake upper case 44B, 144B Brake lower case 15, 25, 35, 55, 65, 75, 85, 95, 1
05,115 Braking plate 45,145 Central braking member 49,149 Outer peripheral braking plate 16,26,36,46,56,66,76,86,9
6,106,116,146 Fluid material 17,27,37,47,57,67,77,87,1
07, 117, 147 Sealing material 18, 28, 38, 48, 58, 68, 78, 88, 9
8, 108, 118, 148 Output gear 59 Control pin 102s, 103s Flange 103t Mounting hole 113u Holding frame 119 Rack member 124 Airflow suppression wall 124a Opening 125, 135 Braking body 134 Electromagnetic derivative 134s Stator 134c Coil

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Shoichi Nagao 3-3-5 Yamato, Suwa-shi, Nagano F-term in Seiko Epson Corporation (reference) 2C150 CA02 CA10 DA19 DA20 EB36 EG07 EG12 3J059 AE04 BA37 BB01 BC01 CA02 CB02 GA50

Claims (28)

[Claims] 1. A mainspring that is wound by a winding force and accumulates a restoring force; A driving force accumulating portion including a rotating member pivotally supported by the mainspring housing portion; an output unit connected to the rotating member; and a braking member connected to the rotating member, and a braking force associated with rotation of the braking member. And a braking unit for generating a spring. 2. The mainspring mechanism according to claim 1, wherein the driving force accumulating section and the braking section are configured separately. 3. The mainspring mechanism according to claim 2, wherein the braking section is unitized by itself. 4. The driving force accumulating portion and the braking portion are fitted and fixed to each other, and a groove is formed between the driving force accumulating portion and the braking portion so that another member can be inserted from outside. The mainspring mechanism according to claim 2, wherein 5. The mainspring mechanism according to claim 1, wherein the driving force accumulating section is sealed. 6. The mainspring mechanism according to claim 1, wherein the rotating member and the braking body are formed separately, and are coupled to each other at least in a rotational direction. 7. A shaft support diameter between the rotating member and the mainspring receiving portion is smaller than a radial position of a connecting portion between the inner end of the mainspring and the rotating member. 2. The mainspring mechanism according to 1. 8. The device according to claim 1, wherein an engaging structure is provided at an end of the rotating member opposite to the braking portion so as to be able to engage in a rotating direction of the rotating member. Of the mainspring mechanism. 9. The apparatus according to claim 1, further comprising a restricting means configured to be disengageable with respect to the rotating member or the output means, and restricting release of the driving force of the mainspring.
The mainspring mechanism described in 1. 10. The mainspring mechanism according to claim 9, wherein the regulating means has a plurality of engagement positions with the rotating member or the output means. 11. The mainspring mechanism according to claim 1, wherein a connecting portion between the outer end of the mainspring and the mainspring housing has a rotary connection structure by frictional force. 12. The mainspring mechanism according to claim 1, wherein an outer peripheral surface of the rotating member has a shape whose radius gradually increases in a circumferential direction of the mainspring from a connection portion to an inner end of the mainspring. . 13. The braking unit is configured to contain a fluid substance that comes into contact with the brake body and to generate the braking force due to a rotational resistance of the brake body caused by the fluid substance. The spring mechanism according to claim 1. 14. The mainspring mechanism according to claim 13, further comprising adjusting means for adjusting a contact area between the brake body and the fluid substance. 15. The mainspring according to claim 13, wherein a space in which the flowable substance is accommodated in the braking portion is configured to expand toward a connection portion between the braking member and the rotating member. mechanism. 16. The mainspring mechanism according to claim 1, wherein the braking body includes a blade that receives gas resistance. 17. The mainspring mechanism according to claim 16, 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. 18. The mainspring mechanism according to claim 17, wherein an opening is provided in the airflow suppression surface. 19. The mainspring mechanism according to claim 1, wherein the braking force is based on electromagnetic induction generated by rotation of the braking body. 20. The mainspring mechanism according to claim 20, further comprising an electric load variable unit capable of changing an electric load against an induced electromotive force generated by the electromagnetic induction. 21. The mainspring mechanism according to claim 1, wherein the driving force accumulating section has an attaching means for attaching the mainspring mechanism to another member. 22. The mainspring mechanism according to claim 21, wherein the attaching means is constituted by an attaching structure physically integrated in the driving force accumulating portion. 23. The mainspring mechanism according to claim 1, wherein a slip means having a predetermined load resistance is provided in a rotation transmission path from the rotating member to the braking body. 24. The braking device according to claim 23, wherein the braking member is in contact with the fluid material, and a slip surface of the slip means is disposed in the fluid material.
The mainspring mechanism described in 1. 25. The mainspring mechanism according to claim 1, wherein a rotation intermittent means for intermittently transmitting the rotation is provided in a rotation transmission path from the rotating member to the braking body. 26. The rotation intermittent means interrupts rotation transmission when the driving force accumulation unit accumulates driving force, and transmits rotation when the driving force accumulation unit discharges driving force. The mainspring mechanism according to claim 25, wherein the mainspring mechanism is configured. 27. Any one of claims 1 to 26.
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. 28. Any one of claims 1 to 26
An apparatus comprising: the mainspring mechanism described in the above section; and a movable part driven by the mainspring mechanism.