JPH09325818A - Driving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving device having a functional structure capable of instantaneously transmitting even a slight extension or contraction to an opening/closing member and a moving member and allowing the functional structure to act as a switch and constituted of a shape memory alloy coil spring and a bias spring. SOLUTION: The shape memory alloy coil spring 9 and a bias spring 6 are inserted to a guide shaft 3 provided with an intermediate wall 7 and a spiral working part 14 having a recessed groove track from the right and left through the wall 7 and the shaft 3 is inserted into an insertion hole 4 and a U-shaped storing position 11 and stored in a recessed shape storing fitting 22. In a state engaging a projected shape 15 formed in the circular inside of an annular part 13 having a blade with the spiral working part 14 of the shaft 3, the shaft 3 is inserted and stored in the annular inside and the end part of the annular part 13 is inserted and stored in a cavity part of a holding tool 12 for the shaft 3 and the annular part 13. The shaft 3 is fixed on the holding tool 2 for the shaft 3 and a rotary shaft 31 on the end part of the circular part 13 is inserted and fixed on a holding tool 30 for the rotary shaft 31 of the part 13.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The drive device of the present invention is a drive device using a shape memory alloy coil spring and a bias spring as power sources, which detects ambient temperature and expands and contracts. Yes, it is utilized as a switch utilizing the rotation operation of the opening / closing member or the movement and rotation operation of the opening / closing member. 2. Description of the Related Art Various developments have been proposed in the development utilizing the generated power of the power source. For the movement of the opening / closing member, the opening / closing member is moved left and right and diagonally and forward and backward. Most were related to. Thus, due to the characteristics of the shape memory alloy coil spring, when it is desired to increase the generated force, there are drawbacks such as a slow opening / closing speed, and the airtightness and watertightness are not necessarily good due to the above-mentioned movement specifications. When the opening / closing member moves, there is a large frictional resistance, and the generated force of the designed shape memory alloy coil spring cannot be satisfied. Although many switch function structures have been proposed, the switch function structure based on the relationship with the power source is not well known, and there is no drive device that can be specified even in an opening / closing speed or in a narrow space. Therefore, in the power source specification, a drive device having a switch function structure for instantaneous transmission has been required. SUMMARY OF THE INVENTION Thus, according to the present invention, the functions of mitigating frictional resistance and temperature detection that occur when the opening / closing member moves laterally or obliquely are quickly transmitted to the opening / closing mechanism, and the like. While improving the airtightness and watertightness,
The challenge is to develop a drive device that enables the aforementioned functions to operate efficiently even in a narrow space. When a fan having a small diameter and a long length is installed in a narrow space, the temperature detection function is promptly transmitted in the power source specification, and the drive device can be used as a switch function. Is. The drive device of the present invention comprises:
In the longitudinal direction of the concave shape storage metal fitting having an arbitrary width, vertical walls are provided in an arbitrary shape on the left and right of the concave shape storage metal fitting integrally with the concave shape storage metal fitting with the width side as the bottom side. An insertion hole is provided in one of the two places. A U-shaped storage portion is provided on the other side, and the lower portion of the insertion hole and the lower portion of the U-shaped storage portion are horizontal, and the insertion hole, the U-shaped storage portion, and a shape memory alloy coil spring that is a power source. With the guide shaft passing through the center of the Bias Sprinkle, the power source is stored inside the concave metal fitting. The guide shaft in the above-mentioned mechanism has a round bar-like arbitrary length, and a groove groove orbit is spirally machined on the tip side at an arbitrary length and angle, and an arbitrary portion of the rear part of the guide shaft is formed. At the position, the upper part in the longitudinal direction is machined with an arbitrary width and length to prevent rotation of the guide shaft. Further, an intermediate wall having an arbitrary shape larger than the outer diameter of the power source is integrally fixed to the induction shaft at an arbitrary position in the central portion of the induction shaft. A shape memory alloy coil spring is inserted into one side of the guide shaft with an intermediate wall sandwiched therebetween, and a bias spring is inserted into the opposite side so that the power source is accommodated inside the concave shape housing fitting. While keeping the above, the rear side of the guide shaft is inserted through the insertion hole of the vertical wall and the tip side is stored in the U-shaped storage location. Further, a processing portion provided on the rear side of the guide shaft to prevent the guide shaft from rotating is fixed by the guide shaft holder. One guide shaft tip side is fixed by the guide shaft and the holder of the annular component at a portion where the groove groove track is not processed. In addition, the groove of the guide shaft is spirally machined at an arbitrary length and angle, and at the beginning of the groove of the groove, the annular inner upper part of the annular component equipped with blades is formed. Is formed so that the convex shaped portion provided in is fitted, and the leading end of the guide shaft is inserted into the inside of the ring, and in the formed state, the ring side of the ring-shaped component equipped with blades is The guide shaft and the annular component are fixed while being inserted into the cavity of the holder. As described above, the power source is a state in which the shape memory alloy coil spring and the bias spring are mounted in series, and the induction shaft formed through the center of the power source changes in temperature. The front-back operation is performed according to the force generated by the expansion and contraction of the power source, and by this operation, the convex shape inside the annular shape is guided by the concave groove track at the tip of the induction shaft, and the annular part equipped with the blades is instantly rotated. It is configured as follows. The drive device of the present invention has a shape memory alloy coil spring in which the spiral direction of the groove groove of the guide shaft is reversed due to the rotating direction of the annular component having the blades and the convenience of installing the guide shaft. In some cases, the bias spring and the bias spring are stored in reverse in the metal fitting. Further, in order to adjust the rotation speed, the steepness of the spiral angle of the groove groove is changed depending on the application. Thus, in the drive unit of the present invention, the shape memory alloy coil spring in which an arbitrary temperature is memorized and the bias spring are installed in series, and the installed shape memory alloy coil spring is in the surroundings. The temperature is detected, and when the temperature is higher than an arbitrary temperature, the generated force is expanded so as to be enhanced. As the temperature becomes lower than the arbitrary temperature, the generated force is weakened, so that the contraction is performed. The function is that when the shape memory alloy coil spring is expanded, the bias spring is contracted, and the intermediate wall provided between the shape memory alloy coil spring and the bias spring pushes the annular component side having the vanes. The guide shaft, which is integral with the intermediate wall, is also activated at the same time, and the spiral concave track of the guide shaft tip guides the convex component inside the ring provided integrally with the ring-shaped component having the vanes. Due to the guidance, the annular component having the vanes is instantly rotated. Contrary to the above-described action, the force generated by the shape memory alloy coil spring becomes weaker as the temperature becomes lower than an arbitrary temperature, so that the intermediate wall performs a reverse action and the induction shaft also acts in reverse due to the force produced by the bias spring. Then, the concave groove orbit provided on the guide shaft reversely guides the convex shape inside the annular part of the annular part having the blades to rotate. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a driving device according to an embodiment of the present invention.
1 and the guide shaft 3 of FIG.
The shape of the guide shaft 3 is a round bar shape with an arbitrary length.
Is formed so that the spirally processed portion 14 of the groove groove is formed to have an arbitrary length, width and angle from the tip of the annular component 13 side including the blade, and is provided to prevent the rotation of the guide shaft 3.
An arbitrary position on the rear side of the guide shaft 3 is flattened with a desired width and length, and an intermediate wall 7 having a desired shape is fixed to an arbitrary position in the center of the guide shaft 3. It The guide shaft 3 formed as described above has a concave shape in which the bias spring 6 is inserted on the left side of the guide shaft 3 with the intermediate wall 7 interposed and the shape memory alloy coil spring 9 is inserted on the opposite side. The rear side of the guide shaft 3 is passed through the insertion hole 4 and the tip end side of the guide shaft 3 is housed in the U-shaped storage location 11 so as to be housed inside the vertical walls 5 and 10 of the housing fitting 22. The guide shaft holder 2 is inserted through the processed central portion on the rear side of the guide shaft 3, and the guide shaft 3 is inserted.
The pin is inserted with a clearance allowing forward and backward movement, so that the guide shaft 3 is prevented from rotating and is fixed. Also,
A spiral grooved portion 14 of a concave groove orbit is provided on the tip end side of the guide shaft 3, and the guide shaft and the holder 12 for the annular component are inserted from the concave groove orbital side at an arbitrary position without the spiral grooved portion. Fixed. The tip end of the guide shaft 3 described above is fitted with the convex shape 15 provided inside the annular part 13 of the annular part 13 provided with blades, and is inserted to an arbitrary position inside the annular part. The annular end portion side of the annular component 13 provided with the blades in the inserted state is inserted and combined with the hollow portion of the guide shaft and the holder 12 of the annular component having an arbitrary depth. Further, on the side opposite to the annular component 13 provided with the vanes, the aforementioned annular component 1
A rotary shaft 31 provided integrally with the shaft 3 is inserted into and fixed to a holder 30 of the rotary shaft of the annular component. From the above structure, the shape memory alloy coil spring 9 and the bias spring 6 are used as motive power sources, and when the temperature rises, the shape memory alloy coil spring 9 extends and stops at the position of the intermediate wall 7, and the solid line in FIG. Although it is stationary at the position of the figure and the blade shape 18, if the temperature decreases, the force generated by the shape memory alloy coil spring 9 weakens, and if the force generated by the bias spring 6 increases, the intermediate wall 7 is pushed back. Since the guide shaft 3 operates up to the intermediate wall 8 and at the same time, the guide shaft 3 operates at the same time.
The convex shape 15 provided inside the annular shape is guided, and the annular component 13 provided with the blade is rotated to move to the moving position 19 of the blade shape. Thus, the drive device of the present invention is different from the above-described embodiment in that the blade shape 18 and the moving position 19 of the blade shape.
Using the movement up to, switch ON when the position of the blade shape 18 and OFF when leaving the position of the blade shape 18.
And is used as a switch function. FIG. 2 is a detailed plan view showing from 23 in FIG. 1 to the annular part 13 provided with blades, but the groove groove track 26 which is the same as the spiral processing portion 14 of the groove groove track 26. The helix angle is arbitrary, and the helix angle can be moderated depending on the required rotation speed of the annular component 13 provided with the blades or the application such as a switch function. Therefore, in the drive unit of the present invention, since the groove groove orbit provided on the guide shaft is spirally formed,
The stroke of the shape memory alloy coil spring due to temperature detection is shortened, and the contraction rate is reduced, so that the durability of the shape memory alloy coil spring is improved. Further, since the groove groove orbit provided on the guide shaft is spirally formed, the temperature detection is instantaneously transmitted to the annular component provided with the blades, so that the temperature of the shape memory alloy coil spring is increased. The detection function will be improved. Further, it can be immediately used for the movement of the opening / closing plate and the object and the switch function, and can be utilized as a drive device with high sensitivity. Furthermore, the transmission of the power source can be adjusted by adjusting the spiral angle, and since the adjustment function is provided, various specifications are possible. An induction shaft is inserted through the concave shape metal fitting, and an intermediate wall is provided at an arbitrary position of the induction shaft. A shape memory alloy coil spring and a bias pulling are installed in series on the left and right of the intermediate wall. And the convex shape that is guided inside the annular part of the annular part equipped with the blades is the above-mentioned annular part. Since the entire structure is simplified, such as being equipped integrally with
It is easy to manufacture and inexpensive. Further, due to the spiral shape of the groove of the induction shaft, the operating range of the shape memory alloy coil spring is small and the ratio of expansion and contraction is small, which results in fatigue of the shape memory alloy coil spring. The drive device has a functional structure that does not require maintenance because it has a small amount of temperature, has good durability, can perform temperature detection permanently, and is structurally simple. [0026]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a product perspective view of a drive device. FIG. 2 is a detailed plan view showing from 23 in FIG. 1 to an annular part having a blade shape. DESCRIPTION OF SYMBOLS 1 Operating position of guide shaft 2 Holding device for guide shaft 3 Guide shaft 4 Insertion hole 5 Vertical wall 6 Bias spring 7 Intermediate wall 8 Operating position of intermediate wall 9 Shape memory alloy Coil spring 10 Vertical wall 11 U-shaped storage location 12 Guide shaft and holder for annular component 13 Annular component 14 provided with blades Helical processing part of concave groove track 15 Convex shape 16 provided in the annular interior 16 Operating position of induction shaft 17 Blade-shaped fixed part 18 Blade-shaped 19 Blade-shaped moving position 20 Rotation stop processing part 21 of the guide shaft Pin 22 fitted in the rotation stop processed part 22 Concave shaped metal fitting 22 'Guide shaft 23 Guide shaft 23 of FIG. 2 ′ Induction shaft 24 Retaining member for induction shaft and annular part 25 Annular part 26 provided with blades 26 Helical processing part of concave groove track 27 Convex shape provided in annular part 28 Operation of annular part of induction shaft Position 29 Blade shape 30 Ring component holder 31 Rotating shaft

Claims (1)

Claim: What is claimed is: 1. A guide shaft having a functional structure using a shape memory alloy coil spring and a bias spring as a power source, wherein the guide shaft inserted through the center of the power source has a guide shaft tip end portion. The groove groove orbit is formed in a spiral shape, an intermediate wall is provided at the center of the guide shaft, and the guide shaft is prevented from rotating at any position on the rear side of the guide shaft. A bias spring is inserted on the rear side of the guide shaft on the left side of the intermediate wall provided on the guide shaft, and a shape memory alloy coil spring is inserted on the tip side of the guide shaft on the right side of one of the middle walls. While the shape memory alloy coil spring and the bias spring are housed in series inside the concave shape fitting, the rear side of the guide shaft is inserted into the insertion hole of the vertical wall, and the guide shaft tip side is inserted. Is stored in the U-shaped storage location on the vertical wall, and the guide shaft holder is inserted and fixed in the center of the location where the guide shaft is machined at any position on the rear side.
The guide shaft and the holder for the annular component are inserted at an arbitrary position outside the spirally processed portion of the groove groove provided on the tip end side of the guide shaft, and the guide shaft is fixed. From the formation, in a state in which the convex shape provided at an arbitrary position inside the annular part of the annular component having the blades is fitted to the end of the concave groove orbit in which the concave groove orbit of the guide shaft is spirally provided. The guide shaft is inserted into the inside of the ring, and the ring-shaped end portion of the ring-shaped component provided with the blades in the inserted state fits into the cavity of the guide shaft and the holder of the ring-shaped component. The rotary shaft provided on the end side of the annular component equipped with the blades is inserted into and fixed to the holder for the rotary shaft of the annular component. From the above-mentioned structure, the shape memory alloy coil spring and the bias spring perform the expansion and contraction action according to the temperature change, but the expansion and contraction action is more than the arbitrary temperature stored in the shape memory alloy coil spring. The force generated when detecting the force exceeds the force generated by the bias spring, causing the intermediate wall provided on the induction shaft to operate backward, and the shape memory alloy coil spring detects the temperature below an arbitrary temperature. When the generated force generated at this time is lower than the generated force of the bias spring, the guide shaft is pushed back by the intermediate wall. Thus, the expansion and contraction action of the power source causes a phenomenon in which the intermediate wall that is integral with the guide shaft is pressed against each other, and this phenomenon is simultaneously promoted to activate the groove groove orbit provided on the tip end side of the guide shaft. When the guide shaft operates backward, it rotates counterclockwise, and the guide shaft operates on the side of the annular component equipped with blades, so that the annular component equipped with blades can be instantly rotated. If it does, it will rotate to the right. In this way, the drive device is provided with a functional structure that allows it to rotate freely in preparation for the mechanism for promptly transmitting the temperature detection. 2. The induction shaft according to claim 1, wherein the concave groove orbit is provided spirally in an arbitrary range and at an angle, and the center portion of the shape memory alloy coil spring and the bias spring which are the power sources. An intermediate wall is fixed between the shape-memory alloy coil spring and the bias spring so as to penetrate therethrough and move the induction shaft back and forth. A method for installing a power source characterized by a functional structure in which springs are formed so as to alternately press each other according to a change in temperature and are housed in a recessed housing fitting. 3. The guide groove according to claim 1, wherein a groove groove orbit is provided spirally at the tip of the guide shaft at an arbitrary range and angle, and a convex shape is fitted into the groove groove orbit and is formed inside the annular shape. A functional structure characterized in that an annular component provided with blades in an inserted state is inserted into the guide shaft and the holder cavity of the annular component to rotate. 4. The annular component shape according to claim 1, wherein the annular component of the annular component having the vanes has a convex vane and is rotated. 5. An annular component provided with blades having the structure according to claim 1 and claim 2. The annular component can be rotated without moving in the front-rear direction. Drive function of the annular component. 6. A switch function having the functional structure according to claim 1, claim 2, and claim 3.