JPH04190038A - Temperature fuse for damper - Google Patents

Abstract

PURPOSE:To enable a recovery of a melted temperature fuse to be easily carried out after once operated by a method wherein a projection at the other end of a fuse pin is locked by a lock mechanism and the lock mechanism is cooperatively related with a lock releasing mechanism including a coil spring made of shape memory alloy. CONSTITUTION:A lock mechanism 36 locks a pin 22 by engaging a roller 48 with a roller groove 44 when one end 22a of a fuse pin 22 is projected out of a cap 30. Both ends of a coil panel 40 made of shape memory alloy of a lock releasing mechanism 42 are engaged with each of an operating cylinder 52 and a cylindrical main body 26, respectively. When the fuse is heated during occurrence of fire, the cylinder 52 is slid while being pulled by a spring 40, a slant recessed groove 54 pushes the roller 48 out of the roller groove 44, disengaged out of it, the locked state of the pin 22 is released and slid toward a projection 24 under a force of a biasing spring 32. One end 22a is pulled into the cap 30, the engaged and locked state of the operating plate 20 and the pin 22 is released, the damper vane 16 is rotated and a flow passage in the casing 14 is closed. After this operation, as the projection 22b is pushed into the main body 26 of the cylinder the pin 22 is locked again.

Description

Detailed Description of the Invention 10.Objectives of the Invention (1) Industrial Field of Application The present invention provides a system for maintaining the blades of a damper installed in an air conditioning duct in an open and locked state at all times, but locking the blades in the event of a fire. (2) Conventional technology Traditionally, in various buildings, factories, etc., dampers were installed in the fireproof section of air conditioning ducts, and the fuses were closed inside the casing. A spring-loaded blade body is connected to a temperature fuse installed in the casing to keep it locked in the open state and constantly supply or exhaust air, and in the event of a fire, high-temperature air flows through the duct. The temperature fuse is activated to release the open lock of the blade, and the blade is forcibly rotated by the force of the spring, thereby closing the inside of the casing and preventing smoke and fire. It is.

By the way, the temperature fuse that locks and holds the blade in an open state is constructed by constantly biasing a fuse bin inserted into a metal cylindrical body with a spring toward the end that becomes inside the casing. A flange member is made to protrude from the cap of the cylindrical body while resisting the force, and a flange member having a flange fixed with a fuse metal is removably fitted to the protruding portion of the other end of the fuse bin, and a locking tool attached to the cylindrical body is used. While locking the flange of the flange member, the opening/closing lever of the blade body is locked in an open state with one end of the fuse bottle protruding from the cap, and in the event of a fire etc., it is fitted into the fuse bottle protruding into the casing of the damper. The fuse metal of the flange member melts at high temperature, and the blade is unlocked by the fuse bottle, allowing the blade to automatically close the inside of the casing.

(3) Problems to be Solved by the Invention However, once the temperature fuse is activated, it is impossible to lock the fuse bin with the flange member, so the flange member must be replaced with a new one. It requires expense and effort.

Furthermore, the conventional temperature fuse is unlocked only when the fuse metal of the flange member exposed inside the duct of the fuse bin is melted by the high heat of the hot air or smoke flowing through the duct, so the thermal responsiveness of the fuse bin is There were problems such as slowness.

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to inject air into a part of the protrusion of the cylinder body that protrudes into the casing of the temperature fuse installed in the casing of the damper. A fuse bottle has a notch opening exposed to the flow path, and the other end of the fuse bottle is fitted into the cylinder body and protrudes outward from the cap of the cylinder body, and the other end of the fuse bottle locks the operating plate of the rotary shaft of the damper blade. By locking the temperature fuse with a locking mechanism and linking the same locking mechanism with a lock release mechanism that includes a coil spring made of shape memory alloy placed in the notch opening, it is easy to reset the temperature fuse once it is activated. To provide a temperature fuse for a damper, which can be used for a long time, eliminates the need to replace the entire temperature fuse, saves costs and labor, and has excellent thermal response when unlocking a fuse bin.

■6 Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, the present invention provides a damper having at least a protruding portion 24 partially protruding into the flow path of the damper. A fuse is a cylinder body 26 including the protrusion 24 and a cap 30 having a fuse bottle hole 28 is fixed at one end. While being constantly biased by a spring, one end 22a protrudes from the fuse bottle hole 28 of the cap 30 while resisting this spring biasing force, and the rotation shaft 1 of the damper blade 16 is rotated.
The fuse bin 22 is engaged with the operating plate 20 of No. 8, and the fuse bin 22 is engaged with the fuse bin 22 while resisting the spring urging force in the direction of the protruding portion 24 of the fuse bin 22, so that the fuse bin 22 protrudes from the cap 30. The projecting portion 24 includes a notch opening 38 that is not partially exposed to the damper flow path, and at least a coil spring 30 made of a shape memory alloy is installed in the notch opening 38. The damper temperature fuse 10 includes a lock release mechanism 42 for unlocking the lock mechanism 36 provided therein.

Further, the lock mechanism 36 includes a roller groove 44 provided in the other end protrusion 22b of the fuse bin 22 that protrudes from the cylinder body 26 toward the notch opening 38 of the protrusion 24;
a roller support rod 46 that is engaged with the cylinder body 26 along the longitudinal direction of the fuse bin 22 and whose end portion is biased toward the roller groove 44;
a roller 48 which is pivotally supported at an end of the fuse pin 22 and is engaged with the roller groove 44 to lock the fuse pin 22 so as to maintain the protruding state of the one end 22a of the fuse pin 22 from the cap 30; The release mechanism 42 is slidably fitted into the other end protrusion 22b of the fuse bin 22 and is fitted into the roller groove 44.
A diagonal cutout groove 54 that fits into both ends of the roller 48 that is engaged with the
The operating barrel 52 is interposed between the projecting portion 22b at the other end of the fuse bin 22, and the operating barrel 52 is inserted into the protruding portion 22b at the other end of the fuse bin 22 at a predetermined temperature. In order to disengage the roller 48 from the roller groove 44 on the inclined surface, it may include a coil spring 40 made of a shape memory alloy and linked to the actuating cylinder 52.

The lock mechanism 36 also includes a small diameter shaft 58 provided at the end of the other end protrusion 22b of the fuse bin 22 that protrudes from the cylinder body 26 into the notch opening 38 of the protrusion 24.
and the small diameter shaft 58 which is pivotally connected to the outer peripheral surface of the cylinder body 26.
The fuse pin 2 is held so as to hold the one end 22a of the fuse pin 22 protruding from the cap 30.
2, the opening/closing beak 60 includes the notch opening 38, and the opening/closing beak 60 includes a pair of opening/closing beaks pivotally attached to the cylinder body 26. a plate 62.62, a pair of spring rods 66.66, one end of which is locked to the cylinder body 26 and fixed to the opening/closing plate 62.62 in order to keep the opening/closing plate 62.62 in a normally closed state;
A pair of beak bodies 68, 68 are fixedly supported at the ends of the pair of spring rods 66, 66, and have a conical surface 70 on the inner surface whose diameter is reduced from one end to the other end, and the lock release mechanism 42 is a conical surface 7 of the pair of beak bodies 68 and 68 which is slidably and loosely fitted into the other end protrusion 22b of the fuse bin 22.
0.70 and the fuse bottle 2
The press plate 72 is inserted between the other end protrusion 22b of the fuse bottle 22 at a predetermined temperature to open the pair of beaks 68 and 68 while sliding the press plate 72 along the other end protrusion 22b of the fuse bottle 22. 72 and a coil spring 40 made of a shape memory alloy.
The locking mechanism 36 includes a pair of support plates 74 that protrude from the cylindrical body 26 toward the notch opening 38 of the protrusion 24 .
74, a first arm rod 78a which is disposed within the pair of support plates 74 and 74 and whose one end is pivotally connected to a shaft connected to the end of the support plates, and other than this first arm rod 78a. the other end protrusion 22 of the fuse bottle 22 protruding into the cutout opening 38;
and a second arm lever 78b whose both ends are pivotally connected to the first and second arm levers 78a and 78b. The fuse bin 22 is locked, and the lock release mechanism 42 is connected to the first and second arm rods 78a,
The support plate 74.7 is located near the pivot point of 78b.
The first and second arm rods 78a are supported by a shaft 82 provided in
A cam body 84 that comes into contact with a position near the pivot joint of 78b is interposed between the cam body 84 and the cylinder body 26 or the support plate 74, and the cam body 84 is rotated at a predetermined temperature and the first and second A coil spring 40 made of a shape memory alloy for bending the pivot portions of the arm rods 78a and 78b into a shape without pressing them.
It is also possible to have the following.

The lock mechanism 36 also includes a roller receiving edge 86 provided at the end of the other end protrusion 22b of the fuse bin 22 that protrudes from the cylinder body 26 into the notch opening 38 of the protrusion 24; A roller support rod 4 is attached to the cylinder body 26 and protrudes toward the end of the other end protrusion 22b of the fuse bin 22.
6, and a roller 48 that is pivotally supported by the end of the roller support rod 46 and is engaged with the roller receiving edge 86 to lock the fuse bin 22 so as to maintain the state of the fuse bin 22 protruding from the cap 30. The lock release mechanism 42 includes a cam body 84 that is pivotally attached to a position near the end of the roller support rod 46 via a fitting 88 and abuts the other end protrusion 22b of the fuse bin 22;
The cam body 84 is interposed between the cam body 84 and the cylinder body 26, and the cam body 84 is rotated at a predetermined temperature to press the other end protrusion 22b of the fuse bin 22, and the roller 48 is moved together with the roller support rod 46 to the roller receiver. It may also include a coil spring 40 made of a shape memory alloy for disengaging from the edge 86.

The locking mechanism 36 also includes a roller receiving end 90 provided at the end of the other end protrusion 22b of the fuse bin 22 that protrudes from the cylinder body 26 into the notch opening 38 of the protrusion 24; The fuse bottle 2 is attached to the cylinder body 26.
a roller support rod 46 which is provided to protrude toward the end of the other end protrusion 22b of the fuse bin 22 and is always biased in a direction to separate from the end of the other end protrusion 22b of the fuse bin 22; a roller 48 that is pivotally supported at the end of the fuse bin 22 and locks the fuse bin 22 so as to engage with a roller receiving end 90 of the other end protrusion 22b of the fuse bin 22 to maintain the state of the fuse bin 22 protruding from the cap 30; , a piece body 92 loosely fitted in a position close to the end of the other end protruding portion 22b of the fuse bin 22 in order to lock the biasing force of the roller support rod 46; The lock release mechanism 42 is interposed between the piece body 92 and the other end protruding portion 22b of the fuse bottle 22, and the lock release mechanism 42 is provided with a stop plate 94 connected to the piece body 92 at a predetermined temperature. It may also include a coil spring 40 made of a shape memory alloy for sliding along the protrusion 22b to release the lock of the fuse bin 22 by the roller 48.

Further, the end portion of the cylinder body 26 is closed by a closing plate 96, and the notch opening 3 of the protruding portion 24 is closer to the cylinder body 26.
8 has a frame rod 98 protruding from it, and the locking mechanism 36 is connected to the fuse bin 22 within the cylindrical body 26, and has a plurality of protrusions 100 protruding from the circumferential side and a central position. 1 Connecting body 1 with long hole 102a opened
04, and a closing plate 96 fixed to the end of the cylinder body 26.
The fuse bin is provided protrudingly at an inner surface position close to the fuse bin 22 so as to receive the plurality of protrusions 100 of the linking body 104 against the spring bias of the fuse bin 22 and maintain the state of the fuse bin 22 protruding from the cap 30. The lock release mechanism 42 is fitted into a second elongated hole 102b formed in the closing plate 96, and extends from one end toward the linking body 104. A rotary driving elongated plate 108 which is twisted and extended by a predetermined angle and whose other end is fitted into the first elongated hole 102a of the linking body 104, the frame rod 98 and the rotary driving elongated plate 108. The second rotary drive plate 108 is interposed between
The connecting body 104 is rotated by the rotary drive long plate 108 rotating along the long hole 102b, and the protrusion 10 of the connecting body 104 is rotated.
0 from the receiving piece 106 of the cylinder body 26, and a coil spring 40 made of a shape memory alloy.

Further, in order to prevent the roller 48 of the locking mechanism 36 from separating from the operating barrel 52 of the lock release mechanism 42, a closing rod is provided in the outer edge open groove of the oblique notch groove 54 of the operating barrel 52 in which the roller 48 is engaged. 128 may be fixed.

(2) Function The temperature fuse for a tapper of the present invention is installed in a fire prevention damper, etc., and releases the lock when a fire occurs while opening and locking the internal blade body, and reduces the temperature projected into the casing of the damper. A notch opening exposed to the air flow path is provided in a part of the protruding part of the fuse cylinder body, and one end of the fuse bottle, which is fitted into the cylinder body and is always spring-biased in the direction of the protruding part, is biased by a spring. The actuating plate of the damper blade rotation shaft is caused to protrude outward from the cylinder body while resisting the force, and the actuating plate of the damper blade rotation shaft is locked, and the protruding portion of the other end of the fuse bin is locked by a locking mechanism in order to keep the actuating plate locked by one end of the fuse bin. and the locking mechanism is linked to a lock release mechanism including a coil spring made of a shape memory alloy disposed in the notch opening of the protrusion.

Therefore, when a coil spring made of a shape memory alloy is heated by the high heat of hot air or smoke flowing through the damper casing in the event of a fire, etc., the coil spring expands and contracts to the memorized shape at a predetermined temperature and the lock release mechanism is activated. When activated, the fuse bin is unlocked by the locking mechanism. One end of the fuse bottle protruding outside is retracted into the cylindrical body, and the damper blade rotates rapidly from the open state to close the inside of the casing, making it easy to return even after the temperature fuse is activated. In addition, there is no need to replace the flange member of the fuse bin, which can save costs. In addition, the shape memory alloy coil spring precisely expands and contracts to unlock the fuse bin, resulting in a temperature fuse with excellent thermal responsiveness.

(3) Embodiments Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The damper temperature fuse 10 according to the embodiment of the present invention includes:
As shown in FIGS. 1 and 2, the damper blade 16 is installed near the rotating shaft 18 of the damper blade 16 which is pivotally supported by the casing 14 of the fire prevention damper 12, and the damper blade 16 is rotated by the rotating shaft 18. Actuation plate 20 fixed to shaft 18
is held at one end 22a of a fuse bin 22 protruding to the outside of the damper temperature fuse 10 to maintain the open state of the damper blade 16.

As shown in the figure, the damper temperature fuse 10 includes a protruding portion 24 that partially protrudes into the casing 14, and a cylindrical or prismatic tube body 26 is fixed to the casing 14. As shown in FIG. 3, a cap 30 having a fuse bottle hole 28 is fixed to the cylindrical body 26 on the outer surface thereof.

A fuse pin 22 having a circular or square shaft is fitted into the cylinder body 26, and a biasing spring 32 is attached to the fuse pin 22 within the cylinder body 26.
One end of 2 is received by the cap 30 and the other end is received by a receiving plate 34 which is fixed around the fuse bottle 22, and the biasing spring 3
Due to the elasticity of
It is always spring-biased in the direction. While resisting the biasing force of the biasing spring 32, the one end 22 of the fuse bottle 22
An actuating plate 20 a projects from the fuse bin hole 28 of the cap 30 and is fixed to the rotating shaft 18 of the damper blade 16 at one end 22 a of the projected fuse bin 22.
is locked to maintain the open state of the damper blade 16.

A locking mechanism 36 is provided near the protruding portion 24 to maintain the state in which one end 22a of the fuse bottle protrudes from the cap 30 against the biasing force of the biasing spring 32. Furthermore, the protruding portion 24 includes a cutout opening 38 that is partially exposed in the casing 14 of the damper, and the cutout opening 38 includes a small coil spring 40 (both made of a shape memory alloy). A lock release mechanism 42 is provided and linked to the lock mechanism 36.

Therefore, when the coil spring 40 made of a shape memory alloy in the lock release mechanism 42 is heated by the high heat of hot air or smoke caused by a fire, etc., it expands and contracts at a predetermined temperature, and the lock of the fuse bottle 22 by the lock mechanism 36 is released. Then, one end 22a of the fuse bottle is pulled into the cap 30 of the cylinder body 26, and the damper blade 16 directly rotates to close the inside of the casing 14.

The characteristic feature of the present invention is that the damper temperature fuse 10
, the cap 3 on one end 22a of the fuse bottle 22
A coil spring 40 made of a shape memory alloy is used in the lock release mechanism 42 of the fuse bin 22 to maintain the protruding state from 0, and this coil spring 40 is disposed within the notch opening 38 of the protrusion 24 of the cylinder body 26. As a result, the coil spring 40 has a quick thermal response to the high heat inside the damper, and the fuse bottle 22 can be unlocked quickly.
Another advantage is that the coil spring 40 can be used repeatedly without being damaged even after being activated once.

3 to 6 show a first damper temperature fuse 10a in which an embodiment of the locking mechanism 36 and the unlocking mechanism 42 is explained in detail.

In the figure, in the first damper temperature fuse lOa, a fuse bin 22 is fitted into a cylindrical body 26 including the protruding part 24, and a biasing spring 32 is attached to the fuse bin 22. It is provided to protrude into the notch opening 38 of the protrusion 24 .

The locking mechanism 36 includes a roller groove 44 formed at a substantially intermediate position of the other end protrusion 22b of the fuse bin 22;
A substantially U-shaped roller support rod 46 is attached to the cylinder body 26 along the fuse bin 22, and a roller 48 is pivotally supported by the end of the roller support rod 46 and is attached to the roller groove 44. have.

The roller support rod 46 is brought into contact with a biasing protrusion 50 fixed at an end position of the cylinder body 26 with a gap from the position where the roller support rod 46 is engaged with the cylinder body 26, so that the end of the roller support rod 46 is pressed. is constantly urged in the direction of the roller groove 44, and when the one end 22a of the fuse bin 22 is made to protrude from the cap 30, the roller 48 engages with the roller groove 44, and the fuse bin 2
2 is locked. The lock release mechanism 42 is connected to the other end protrusion 22b of the fuse bottle 22 within the notch opening 38.
As shown in FIG. A diagonal cutout groove 54 that fits into the groove is opened.

As the actuating cylinder 52 slides in the longitudinal direction of the cylinder body 26, one inclined surface of the oblique notch groove 54 presses the roller 48 outward to disengage it from the roller groove 44.

Further, a stop bin 56 of the operating barrel 52 is fixed to the end of the fuse bin's other end protrusion 22b.

A coil spring 40 made of a shape memory alloy is fitted to the other end protrusion 22b of the fuse bin 22 in the gap between the actuating cylinder 52 and the cylinder body 26, and both ends of the coil spring 40 are locked to the actuating cylinder 52 and the cylinder body 26, respectively. has been done. When the coil spring 40 is heated to, for example, 72° C. or higher in the event of a fire or the like, the coil spring 40 contracts at a predetermined temperature as a shape memory alloy, and as shown in the partial views a-b-c of FIG. As shown in FIG.
the roller groove 44 of the other end protrusion 22b of the fuse bin 22.
The lock of the fuse bottle 22 is released by pushing it out and disengaging it, and the fuse bottle 22 slides in the direction of the protruding portion 24 of the cylinder body 26 by the urging force of the urging spring 32, and one end 22a of the fuse bottle 22 is attached to the cap. Drawn into 3o. As a result, the locking state between the actuating plate 20 and the fuse bin 22 is released, and the damper blade 16 is rotated in the biasing direction of the biased rotating shaft to close the flow path in the casing 14. With the fuse bin 22 unlocked, when the other end protrusion 22b of the fuse bin 22 is pushed in the direction of the cylinder body 26, the roller 44 is engaged with the roller groove 54, and the operating cylinder 52 is also moved by the return extension of the coil spring 40. When it slides back to its original position, the diagonal cutout groove 54 engages with the roller 48, and the fuse bin 22 is locked again.

Therefore, in the first damper temperature fuse 10a, the coil spring 40 made of a shape memory alloy of the lock release mechanism 42 is disposed within the cutout opening 38 of the protrusion 24 of the cylinder body 26 and exposed inside the damper. Therefore, when a fire occurs, the coil spring 40 has a quick thermal response to the high heat of hot air and smoke flowing through the damper, and the fuse bin 22 can be unlocked quickly. This will save you time and money.

Further, the coil spring 40 made of a shape memory alloy may be attached to the other end protrusion 22b of the fuse bin 22 in the gap between the end of the other end protrusion 22b of the fuse bin 22 and the operating cylinder 52, as shown in FIG. It is preferable that the coil spring 40 is made of a shape memory alloy that has the property of elongating at a predetermined temperature. Shape memory alloys such as Cu-Zn-Al and T
By selecting the i-Ni system, rust and corrosion are prevented and fuse malfunctions and malfunctions do not occur.

Next, FIGS. 7 to 9 show a second damper temperature fuse 10b including a locking mechanism 36 and a lock release mechanism 42 according to another embodiment.

In the figure, in the second damper temperature fuse 10b, a fuse bin 22 is fitted into a cylindrical body 26 including the protrusion 24 and a biasing spring 32 is attached, and the protrusion 22b at the other end of the fuse Notch opening 38 of installation part 24
It is installed protruding into.

The locking mechanism 36 includes a small diameter shaft 58 provided at the end of the other end protruding portion 22b of the fuse bottle 22 in the notch opening 38, and a small diameter shaft 58 that is clamped to lock the small diameter shaft 58 from the cap 30 at one end of the fuse bottle 22. The opening/closing beak body 60 is provided for locking the fuse bottle 22 while maintaining the protruding state of the fuse bottle 22.

As shown in FIG. 8.9, this opening/closing beak body 60 includes a pair of opening/closing plates 62, 62 formed in a semicircular arc plate shape that encompasses the notch opening 38 and pivotally attached to the cylindrical body 26. , in order to keep this opening/closing plate 62, 62 in a normally closed state, the opening/closing plate 6
One end of the inner surface of 2.62 is bent in a U-shape 64.64 and is locked to the cylindrical body 26, as well as the opening/closing plate 62.
The beak body 68.68 includes a pair of spring rods 66.66 attached to the spring rods 62, and a beak body 68.68 fixedly supported at the ends of the spring rods 66.66. The inner surface is provided with a conical surface 70.70 having a diameter reduced from one end facing the opening/closing plate 62.62 toward the other end.

The beak body 68.68 is attached by the spring biasing force of the spring rod 66.66 and clamps and locks the small diameter shaft 58 provided at the end of the other end protrusion 22b of the fuse bin 22.
The protruding state of one end 22a from the cap 30 is maintained.

The lock release mechanism 36 is slidably fitted to the other end protrusion 22b of the fuse bin 22 and the pair of beak bodies 68.
The press plate 72 is attached to the other end protrusion 22b of the fuse bottle 22, and the conical surface 70.7 is in contact with the conical surface 70.70 of the fuse bottle 22 while sliding the press plate 72 at a predetermined temperature.
0 to open the beak body 68, 68, and both ends of the coil spring 40 are locked to the end of the cylinder body and the pressing plate 72. ing.

When a fire occurs, the coil spring 4 of the lock release mechanism 42
0 is heated to a high temperature, the press plate 72 slides toward the end of the fuse bottle's other end protrusion 22b while expanding at a predetermined temperature, and this press plate 72 presses against the inner conical surface of the beak body 68.68. By pressing 70 and 70 to open, the other end protrusion 22b of the fuse bin is unlocked, the fuse bin 22 slides in the direction of the protrusion 24, and the fuse bin 2
2 is drawn into the cap 30 of the cylinder body 26.

When the fuse bottle 22 is to be locked again, the beak bodies 68, 68 in contact with the press plate 72 are further opened, and the coil spring 40 does not return to its contracted length, so the press plate 72 slides back to its original position and the beak With the body 68.68 closed by the spring rod 66.66, the other end protrusion 22b of the fuse bottle 22
by pressing the small diameter shaft 58 in the direction of the cylinder body 26 and the beak body 68.6.
8 to lock the fuse bin 22. Therefore, in the second damper temperature fuse 10b as well, the coil spring 40 made of a shape memory alloy of the lock release mechanism 42 is disposed within the cutout opening 38 of the protrusion 24 of the cylinder body 26 and exposed inside the damper. Because of this, the thermal response of the coil spring 40 to the high heat of hot air and smoke flowing through the damper in the event of a fire is quick (the fuse bin 22 can be unlocked quickly, it can be easily reset after activation, and the flange member This saves the time and expense of replacing the parts.

Next, FIGS. 10 to 12 show a third damper temperature fuse 10c including a locking mechanism 36 and a lock release mechanism 42 according to another embodiment.

In the figure, in the third damper temperature fuse 10c, a fuse bin 22 is fitted into a cylindrical body 26 including the protruding part 24, and a biasing spring 32 is attached to the fuse bin 22. A portion of the protruding portion 24 protrudes toward the notch opening 38 .

The locking mechanism 36 includes a pair of support plates 74.74 protruding from the cylinder body 26 toward the notch opening 38, and one end pivoted to a shaft connected to an end of the support plates 74.74. 7
6a, and a second arm rod 78b, one end of which is pivoted 76b to the end of the fuse bin's other end protrusion 22b. The straightly opposing ends of the first and second pivots 76c are pivoted at a position below a line connecting the pivots 76a and 76b.
By connecting the arm rods 78a and 78b in a straight line, the fuse bottle 22 is locked so as to maintain its protruding state from the cap 30. Since the mutual pivot 76c of the first and second arm rods 78a and 78b is located below the line connecting the pivots 76a and 76b, the first and second arm rods 78a and 78b are attached to the spring of the fuse bottle 22. Although it tends to bend downward due to force, a receiving plate 80 that prevents this is fixed to the lower surface of the supporting plate 74, 74.

The lock release mechanism 42 includes the first and second arm rods 78a.
, 78b, and a cam body 84 which is pivotally supported by a shaft 82 provided on the support plate 74.74 and abuts against the first and second arm rods 78a and 78b, and this cam body The coil spring 40 made of a shape memory alloy is interposed between the cam body 84 and the cylindrical body 26 or the support plate 74 in order to rotate the cam body 84 .

Similarly, when the coil spring 40 is heated to a predetermined temperature and contracts due to a fire or the like, the cam body 84 pivoted on the shaft 82 rotates about 30 degrees, causing the pivot point 76c to pivot to the pivot points 76a and 76b.
In order to press above the line connecting the
a and 78b are bent into a rectangular shape as shown in FIG. 12, and the fuse bottle 22 is unlocked. The first and second arm rods 78a are bent into a square shape when returning the lock;
78b is pressed downward to return it to its straight position, and the pivot point 76c is displaced below the line connecting the pivots 76a and 76b, thereby locking the fuse bin 22.

Therefore, in the third damper temperature fuse 10c as well, the coil spring 40 made of a shape memory alloy of the lock release mechanism 42 is connected to the notch opening 38 of the protrusion 24 of the cylinder body 26.
Because the coil spring 4o is placed inside the damper and exposed inside the damper, the thermal response of the coil spring 4o to the high heat of the hot air and smoke flowing through the damper in the event of a fire is quick, and the fuse bin 22 can be unlocked quickly. Easy to return after operation,
The same effects as described above can be obtained, such as saving the labor and expense of replacing the flange member.

Next, FIGS. 13 to 15 show a fourth damper temperature fuse 10d equipped with a locking mechanism 36 and a lock release mechanism 42 according to another embodiment.

In the figure, in the fourth damper temperature fuse 10d, a fuse bin 22 is fitted into a cylindrical body 26 including the protruding part 24, and a biasing spring 32 is attached, and the protruding part 22b at the other end of the fuse bin is attached to the cylindrical body 26. Notch opening 38 of installation part 24
It is installed protruding into.

The locking mechanism 36 includes a roller receiving edge 86 that is grooved at the end of the other end protruding portion 22b of the fuse bin, and a substantially U-shaped roller support that is attached to the cylindrical body 26 along the fuse bin 22. It has a rod 46 and a roller 48 that is pivotally supported by the end of the roller support rod 46 and engages with the roller receiving edge 86 to maintain the state in which the fuse bottle 22 protrudes from the cap 30.

The lock release mechanism 42 is pivotally connected to a gap at one end of a pair of substantially U-shaped fixtures 88 and 88 fixed opposite to each other at a position near the end of the roller support rod 46, and is connected to a protrusion at the other end of the fuse bin. 22b, and a coil spring 40 made of a shape memory alloy is interposed between the cam body 84 and the cylindrical body 26. While the coil spring 40 is contracted and expanded at a predetermined temperature, the cam body 84 rotates and presses the other end protrusion 22b of the fuse bin while simultaneously pushing the roller support rod 46 and the roller 48 toward the roller receiving edge 8.
Disengage from 6.

Therefore, also in the fourth damper temperature fuse lOd, since the lock mechanism 36 and the lock release mechanism 42 are similarly provided in the notch opening 38 of the protruding part 24 of the cylinder body 26, the inside of the damper is hot air passing through,
When the coil spring 40 of the lock release mechanism 42 is directly heated by the high heat of the smoke, the coil spring 40 contracts and expands at a predetermined temperature, and the cam body 84 rotates to connect the roller support rod 46 and the roller 48 to the roller receiving edge 86. More detachment, Hyuzubin 2
2 is unlocked. Therefore, the thermal response when unlocking the fuse bin 22 operates quickly and accurately, and when the fuse bin 22 is returned from the unlocked state and locked again, the protruding portion 2 at the other end of the fuse bin 22
By pressing the end of 2b toward the cylinder body 26 and engaging the roller 48 with the roller receiving edge 86 at the end, the fuse bin 22 can be easily locked. This saves the time and expense of replacing the parts.

Next, FIGS. 16 and 17 show a fifth damper temperature fuse 10e including a locking mechanism 36 and a lock release mechanism 42 according to another embodiment.

In the figure, in the fifth damper temperature fuse 10e, a fuse bin 22 is fitted into a cylindrical body 26 including the protruding part 24, and a biasing spring 32 is attached, and the protruding part 22b at the other end of the fuse bin Notch opening 38 of installation part 24
It is installed protruding into.

The locking mechanism 36 includes a roller receiving end 90 formed in an open groove at the end position of the other end protruding part 22b of the fuse bin, and a roller receiving end 90 that is engaged with the cylinder body 26 and is attached to the other end protruding part 2 of the fuse bin.
The roller support rod 46 has a substantially U-shaped roller support rod 46 projecting toward the end of the fuse bin 2b, and the roller support rod 46 has a roller receiving end 90 at the end of the fuse bin other end protrusion 22b. A roller 48 that engages and maintains the state in which the fuse bottle 22 protrudes from the cap 30 is suspended loosely.

Further, the roller support rod 46 is received by a biasing protrusion 50 fixed at an end position of the cylinder main body 26 with a gap from the locking position with respect to the cylinder main body 26, and the other end protrusion 22b of the fuse bin is received. It is constantly biased in the direction of detachment. Due to this biasing force, in order to prevent the roller support rod 46 from being disengaged from the fuse bin's other end protruding part 22b, the frame body 92 is slidably positioned closer to the end of the fuse bin's other end protruding part 22b. A stop plate 94, which is loosely fitted and fixed at a position closer to the end of the roller support rod 46, comes into contact with the block 92, and the fuse bin 22 is locked.

The lock release mechanism 42 includes the top body 92 and the cylinder body 2.
A coil spring 40 made of a shape memory alloy is fitted to the other end protrusion 22b of the fuse bottle in the gap with the end of the fuse bottle 6, and both ends of the coil spring 40 are locked to the block body 92 and the end of the cylinder body 26. There is.

When the coil spring 40 is heated to a predetermined temperature in the event of a fire or the like, the coil spring 40 contracts and the piece body 92 slides along the other end protrusion 22b of the fuse bottle, causing the roller support rod 46 to slide. The roller 48 is disengaged from the roller receiving end 90 of the protruding portion 22b at the other end of the fuse bin by moving in the biasing direction, and the fuse bin 22 is unlocked.

When the fuse bin 22 is to be locked again after the unlocking, the fuse bin other end protrusion 22b
is pushed in the direction of the cylinder body 26, the roller 46 is engaged with the roller receiving end 90, and the block body 92 is slid together with the restored and extended coil spring 40 toward the end of the fuse bin other end protrusion 22b, and the stop plate is closed. By bringing 94 into contact with the cam body 92, the fuse bin 22 is locked.

Therefore, in the fifth damper temperature fuse 10e, the lock mechanism 36 and the lock release mechanism 42 are similarly provided in the cutout opening 38 of the protruding portion 24 of the cylinder body 26, so that when a fire occurs, the damper is hot air passing through,
The coil spring 40 of the lock release mechanism 42 is directly heated by the high heat of the smoke and operates quickly, and the thermal response when unlocking the fuse bottle 22 is quick and accurate. fusebin 2
It is also easy to return the device 2 from the locked or unlocked state and lock it again, saving the effort and expense of replacing the flange member after the first operation.

Next, FIGS. 18 to 22 show a sixth damper temperature fuse lof including a lock mechanism 36 and a lock release mechanism 42 according to another embodiment.

In the figure, the sixth damper temperature fuse 10f is closed by a closing plate 96 fixed to the end of the cylinder body 26, and a frame rod 98 is fixed to the notch opening 38 of the protrusion 24 of the cylinder body 26. is installed protrudingly.

A fuse bottle 2 is disposed within the cylindrical body 26 including the protrusion 24.
2 is inserted and the biasing spring 32 is attached, and one end 2 of the fuse bin 22 is inserted while resisting the spring bias of the biasing spring 32.
2a protrudes from the cap 30 of the cylinder body 26.

The locking mechanism 36 is connected to the fuse bin 22 within the cylindrical body 26, and has a plurality of protrusions 100 protruding from at least the circumferential side and a first elongated hole 1 at the center.
02a has a linking body 104 with a hole. In the embodiment, this linking body 104 is constituted by a hollow cylindrical body whose connection side to the fuse bin 22 is closed and capable of receiving a rotary drive elongated plate to be described later, and the other end side is connected to the first elongated hole 10.
It is closed by a receiving plate with holes 2a formed therein. Coordination body 10
4 may be a wall body such as a plate having a first elongated hole 102a into which the rotary driving elongated plate can be fitted loosely. Further, a fuse bin 22 is provided at an inner surface position close to the closing plate 96 at the end of the cylinder body 26.
A receiving piece 106 for receiving the plurality of protrusions 100 of the linking body 104 is fixed against the spring bias of the biasing spring 32, whereby the negative end 22a of the fuse bottle 22 is free from the cap 30. It will be locked while maintaining the protruding state.

The lock release mechanism 42 is fitted into a second elongated hole 102b formed in the closing plate 96 at the end of the cylinder body 26, and is rotated about 45 degrees from one end toward the linking body 104. The other end of the screw-shaped extension is connected to the first elongated hole 1 of the linking body 104.
02a, and a coil spring 40 made of a shape memory alloy is interposed between the rotary drive long plate 108 and the frame rod 98.

When the coil spring 40 is heated to a predetermined temperature in the event of a fire or the like, the coil spring 40 contracts and pulls out the rotary drive elongated plate 108 toward the frame rod 98, thereby closing the closing plate 96.
The rotary driving elongated plate 108 fitted in the second elongated hole 102b is automatically rotated, and the linking body 104 linked to the rotary driving elongated plate 108 through the first elongated hole 102a is also rotated at the same time. The protrusion 100 on the circumferential side is disengaged from the receiving piece 106, the linking body 104 is pushed out toward the closing plate 96, and the fuse bin 22 is unlocked.

In order to lock the unlocked fuse bin 22 again, a model-shaped elongated hole 110 as shown in FIG. It protrudes to the outside from the mold long hole 112. This lock bin 112 is connected to the linking body 104.
When it rotates, it engages with the key part of the model elongated hole 110, and when the linking body 104 moves in the direction of the cylinder body 26, it engages with the key part of the model elongated hole 1.
It engages with the elongated hole parallel to the cylindrical body 26 of No. 10. Therefore, when locking the fuse bin 22, the lock bin 1
12 and moves and rotates the linking body 104 along the template long hole 112, the protrusion 100 of the linking body 104 moves into the receiving piece 1.
06, the fuse bottle 22 is locked with one end 22a protruding from the cap 30.

Therefore, also in the sixth damper temperature fuse 10f, the lock mechanism 36 and the lock release mechanism 42 are the same (they are provided in the notch opening 38 of the protrusion 24 of the cylinder body 26, so that when a fire occurs, the damper Hot air flowing through the
The coil spring 40 of the lock release mechanism 42 is directly heated by the high heat of the smoke and operates quickly, and the thermal response when unlocking the fuse bottle 22 is quick (operates accurately.
It is also easy to return the lock 2 from the unlocked state and lock it again, saving the effort and expense of replacing the flange member after the first operation.

Next, FIGS. 23 to 27 show a seventh damper temperature fuse 10g that includes a lock mechanism 36 and a lock release mechanism 42 according to another embodiment.

In the figure, in the seventh damper temperature fuse 10g, a fuse bin 22 is fitted into a cylindrical body 26 including the protrusion 24, and a biasing spring 32 is attached.
One end 22a of the fuse bottle 22 while resisting the spring bias of
is the fuse bottle hole 2 of the cap 30 of the cylinder body 26.
8, the other end protrusion 22b of the fuse bottle 22
is provided to protrude into the notch opening 38 of the protrusion 24 .

As shown in FIGS. 24 and 25, the locking mechanism 36 includes a roller groove 44 opened at a substantially intermediate position of the other end protrusion 22b of the fuse bin 22,
A substantially U-shaped roller support rod 46 is attached to the cylindrical body 26 along the cylindrical body 26 and biased so that its end comes into contact with the fuse bin 22; It has a roller 48 that engages with the roller groove 44. When one end 22a of the fuse bin 22 is made to protrude from the cap 30, the roller 48 engages with the roller groove 44, and the fuse bin 22 is locked.

The lock release mechanism 42 includes an operating cylinder 52 that is slidably fitted in a position near the end of the other end protrusion 22b of the fuse bin 22 that protrudes from the cylinder body 26 within the notch part 38; A biasing spring 114 fitted to the fuse bin 22 in the space between the operating cylinder 52 and the cylinder body 26
It has

As shown in FIGS. 24 to 26, the operating cylinder 52 includes:
A diagonal notch groove 54 that engages both ends of the roller 48 that engages the roller groove 44 is opened from the peripheral side, and the actuating cylinder 52
A plurality of support rods 118 are provided protruding from the peripheral edge of the outer end surface 116 of. The plurality of support rods 1 are inserted from inside the operating cylinder 52.
18, the fuse bin 22 has a stepped portion 12.
A small diameter shaft 122 is protruded through 0, and this small diameter shaft 122
A catch seat 124 is loosely fitted into the holder 124, and the actuating cylinder 5 is fitted at the tip.
A receiving plate 126 that comes into contact with the second support rod 118 is fixed.

In the space between the receiving plate 126 and the receiving seat 124, a coil spring 40 made of a shape memory alloy that expands at high temperatures is fitted onto the small diameter shaft 122.

The characteristic feature of this seventh damper temperature fuse 10g is that the roller 44 of the roller support rod 46 is
The diagonal notch groove 54 is arranged so as not to separate from the second diagonal notch groove 54.
The closing rod 128 is fixed to the outer edge groove.

As a result, the roller is always held in the diagonal notch groove of the actuating cylinder even when the lock is released. The return lock after unlocking can be easily performed by simply pressing the fuse bin alone, without having to perform a return operation while pressing the fuse bin toward the cylinder body while fitting a roller therein.

As shown in FIG. 26, when the fuse bin 22 is locked, the roller 48, which is pivotally supported at the end of the roller support rod 46 and held in the diagonal notch groove 54 of the actuating cylinder 52, is in the state where the fuse bin 22 is locked. The fuse bin 22 is locked by engaging the roller groove 44 of the protrusion 22a at the other end of the fuse bin 22,
At this time, the receiving plate 1 at the tip of the small diameter shaft 122 of the fuse bottle 22
26 is in contact with the support rod 118 of the actuating cylinder 52, and the coil spring 40 made of a shape memory alloy is contracted and received at both ends by the receiving plate 126 and the receiving seat 124.

Therefore, when a fire occurs, the coil spring 40 made of shape memory alloy of the lock release mechanism 42 is directly heated and expanded by the hot air flowing through the damper and the high heat of the smoke, and the actuating cylinder 52 is activated by the biasing spring via the catch 124. The fuse bottle 22 is unlocked as shown in FIG. 27 as the diagonal notch groove 54 disengages the roller 48 from the roller groove 44 while being pressed and slid in the direction of the cylinder body 26 against the elasticity of the fuse bottle 22. It protrudes from the cylinder body 26.

Next, when the fuse bin 22 is returned from the unlocked state and locked again, the roller 48 is stopped by the closing rod 128 and inserted into the diagonal notch groove 54 of the operating cylinder 52, as shown in FIG. Since the roller 48 is held, simply by pressing the end of the fuse bin 22 in the opposite direction of the arrow, the roller 48 is engaged with the roller groove 44 and the fuse bin 2
2 can be easily locked as shown in FIG. 26, and even with this 10g temperature fuse for the seventh damper, the effort and cost of replacing the flange member once it is activated can be saved.

■8 As described in detail of the invention, according to the temperature fuse according to claims 1 to 8, the temperature fuse for a damper has a protrusion into the damper, and the temperature fuse has a protrusion that is exposed inside the damper. a locking mechanism for holding one end of the fuse bottle, which is fitted into the cylindrical body including the protruding part and is spring-biased in the direction of the protruding part, protruding from the cap of the cylindrical body; In order to release the lock, a lock release mechanism is provided in which a coil spring made of a shape memory alloy is disposed in the notch opening of the protrusion, so that even after the fuse bottle lock release mechanism is activated, the coil spring is released again. It is possible to restore the fuse bin to its original state and lock the fuse bin back, thereby saving the time and expense required to replace the flange member after the fuse bin is activated as in the past.

In addition, the thermal response when unlocking the fuse bin is quick and precise unlocking can be achieved.

Further, by linking the roller of the locking mechanism and the actuating cylinder of the lock release mechanism so that they do not separate, return locking can be easily performed by simply pressing the fuse bottle.

[Brief explanation of drawings]

FIG. 1 is a front view of a fire damper equipped with a damper temperature fuse according to an embodiment of the present invention, and FIG.
FIG. 3 is a partially cutaway front view of the temperature fuse for the first damper according to the embodiment of the present invention, and FIG. 4 is a view taken along the line A-A in FIG.
Fig. 5 is a partial explanatory view showing the operation of the lock release mechanism of the first damper temperature fuse; Fig. 6 is an explanatory view of another mounting example of the coil spring of the lock release mechanism; 7 is a partially cutaway front view of a temperature fuse for a second damper according to another embodiment of the present invention, FIG. 8 is an enlarged perspective view showing its locking mechanism, and FIG. Figure 8 C-C
A line sectional view, FIG. 1O is a partially cutaway front view of a temperature fuse for a third damper according to another embodiment of the present invention, FIG. 11 is a partial plan view thereof, and FIG. 12 is a lock An explanatory diagram of the released state, FIG. 13 is a partially cutaway front view of a fourth damper temperature fuse according to another embodiment of the present invention, and FIG. 15 is a view taken along the line E-E in FIG. 13, FIG. 16 is a partially cutaway front view of a temperature check for a fifth damper according to another embodiment of the present invention, and FIG. 18 is a longitudinal section of a temperature fuse for a sixth damper according to another embodiment of the present invention, FIG. 19 is a sectional view taken along line GG, and FIG. 20 is a sectional view taken along line FF. 21 is an explanatory diagram of the unlocked state, FIG. 22 is a partial front view of the cylinder body showing the lock pin and the model elongated hole, and FIG. 23 is the present invention. FIG. 24 is a partially cut-away front view of a temperature fuse for a seventh damper according to another embodiment of the present invention; FIG. 24 is a partially enlarged front view showing its locking mechanism and lock release mechanism; FIG. FIG. 26 is a partially enlarged bottom view; FIG. 26 is a sectional view taken along the line CC in FIG. 8; FIG. 27 is a sectional view showing the unlocked state in FIG. 25. 10. Temperature fuse for damper, 22. ,. Huyuzbin, 2411. Projection portion, 26. ,,tube body,
30. ,, cap, 32. ,, biasing spring, 3601.
Lock release mechanism, 38. , , Notch opening 40 , , Coil spring 42 . , , unlocking mechanism, 44. ,, roller groove, 46. ,,Roller support rod, 48,,,Roller, 5
2. ,, operating tube, 54. ,. Diagonal notch groove, 58. +, small diameter shaft, 60. ,,opening and closing beak body,
62. , , Opening/closing plate 66 , , Spring rod 68 . . , beak body, 70. , , conical surface, 72. ,,pressing plate, 740
0. Support plate, 76a, 76b, 76c,..., Pivot, 78
a, 78b, 1st and 2nd arm levers, 84°9. cam body,
86. ,,roller receiving edge,92. ,, frame, 94. ,,
Stop plate, 96. , , closing plate, 9801. Frame rod, 100.
,, protrusion, 102a, 102b00. first and second long holes;
104. , , Linking body 106 , , Receptacle piece 108 . ,,
Rotation drive long plate, 12801. Closing rod Fig. 6 L6 Fig. 5 Fig. 2L Fig. 209 Fig. 19 2r

Claims (1)

[Claims] 1. A thermal fuse having at least a protruding portion that partially protrudes into the flow path of the damper, and a cap having a hole for a fuse pin is fixed at one end. a cylindrical body including the protruding portion; and a cylindrical body that is fitted into the cylindrical body and is constantly biased by a spring in the direction of the protruding portion, and one end is inserted through the fuse pin hole of the cap while resisting the spring biasing force. A fuse pin that is protruded and is engaged with the actuating plate of the damper blade rotating shaft; and the fuse pin is engaged while resisting a spring urging force in the direction of the protruding portion of the fuse pin, and the fuse pin is removed from the cap. a locking mechanism that maintains the protruding state, the protruding portion including a notch opening partially exposed to the damper flow path, and a coil spring made of at least a shape memory alloy disposed in the notch opening. A thermal fuse for a damper, comprising a lock release mechanism for unlocking the lock mechanism. 2. The locking mechanism includes a roller groove provided on the other end protrusion of the fuse pin that protrudes from the cylindrical body toward the notch opening of the protrusion, and a roller groove provided on the protrusion at the other end of the fuse pin that protrudes from the cylindrical body toward the notch opening of the protrusion; A roller support rod is attached to the cylinder body and has an end biased toward the roller groove, and a roller support rod is pivotally supported by the end of the roller support rod and is attached to the roller groove, and is attached to one end of the fuse pin. a roller for locking the fuse pin so as to keep it protruding from the cap, and the lock release mechanism is slidably fitted to the protrusion at the other end of the fuse pin, and the lock release mechanism is slidably fitted into the protrusion at the other end of the fuse pin, An actuating cylinder having a diagonal notch that engages both ends of a roller that is engaged with the fuse pin, and a protruding portion at the other end of the fuse pin are interposed, and the actuating cylinder is connected to the protruding portion at the other end of the fuse pin at a predetermined temperature. 2. A damper according to claim 1, further comprising a coil spring made of a shape memory alloy and linked to said actuating cylinder for disengaging said roller from said roller groove on an inclined surface of an oblique notch groove while sliding along said actuating cylinder. Thermal fuse. 3. The locking mechanism is pivoted to the outer peripheral surface of the cylinder body and a small diameter shaft provided at the end of the other end of the fuse pin that projects from the cylinder body to the notch opening of the projection. and an opening/closing beak body for locking the fuse pin so as to pinch the small diameter shaft and keep one end of the fuse pin protruding from the cap, the opening/closing beak body having the notch opening. and the opening/closing beak includes a pair of opening/closing plates pivotally attached to the tube body, and one end of which is latched to the tube body and fixed to the opening/closing plates to keep the opening/closing plates in a normally closed state. and a pair of beak bodies fixedly supported by the ends of the pair of spring rods and having a conical surface whose diameter is reduced from one end toward the other end on the inner surface. a pressing plate that is slidably and loosely fitted into the protrusion at the other end of the fuse pin and comes into contact with the conical surfaces of the pair of beaks; 2. A coil spring made of a shape memory alloy connected to the pressing plate for opening the pair of beaks while sliding the pressing plate along the protrusion at the other end of the fuse pin. Temperature fuse for damper. 4. The locking mechanism includes a pair of support plates protruding from the cylinder body toward the notch opening of the protrusion, and a pair of support plates disposed within the pair of support plates and connected to an end of the support plates. a first arm lever having one end pivotally attached to a shaft; and a second arm lever having both ends pivotally attached to the other end of the first arm lever and the other end protrusion of the fuse pin protruding into the notch opening. an arm rod, the fuse pin is locked so that the fuse pin is maintained in a protruding state from the cap by the straight connection of the first and second arm rods, and the lock release mechanism is configured to , a cam body that is pivotally supported by a shaft provided on the support plate at a position near the pivot joint of the second arm rod and abuts on a position near the pivot joint of the first and second arm rods, and the cam body and the cylinder. The cam body is interposed between the main body or the support plate, and is made of a shape memory alloy for rotating the cam body at a predetermined temperature to press the pivot portions of the first and second arm rods and bending them into a rectangular shape. The thermal fuse for a damper according to claim 1, comprising a coil spring. 5. The locking mechanism has a roller receiving edge provided at the end of the other end of the fuse pin that protrudes from the cylinder body into the notch opening of the projection, and is engaged with the cylinder body. A roller support rod is provided to protrude toward the end of the protruding portion at the other end of the fuse pin, and a roller support rod is pivotally supported by the end of the roller support rod and is engaged with the roller receiving edge so that the fuse pin protrudes from the cap. a roller for locking the fuse pin so as to hold the fuse pin, and the lock release mechanism includes a protrusion at the other end of the fuse pin that is pivotally connected to a position near the end of the roller support rod via a mounting difference. A cam body is interposed between the cam body and the cylindrical body, and the cam body is rotated at a predetermined temperature to press the protrusion at the other end of the fuse pin while the roller is moved together with the roller support rod. 2. The thermal fuse for a damper according to claim 1, further comprising a coil spring made of a shape memory alloy for disengaging from the roller receiving edge. 6. The locking mechanism has a roller receiving end provided at the end of the other end of the fuse pin that protrudes from the cylinder body into the notch opening of the projection, and is engaged with the cylinder body. a roller support rod that projects toward the end of the protruding portion at the other end of the fuse pin and is constantly biased in a direction away from the protruding portion at the other end of the fuse pin; and an end of the roller support rod; a roller that is pivotally supported by the fuse pin and locks the fuse pin so as to engage with a roller receiving end of the other end protrusion of the fuse pin so as to maintain the state of the fuse pin protruding from the cap; and a roller of the roller support rod. The fuse pin includes a piece loosely fitted in a position near the end of the protrusion at the other end of the fuse pin in order to lock the biasing force, and a stop plate that comes into contact with the piece and is connected to the roller support rod. The lock release mechanism is interposed between the piece body and the protrusion at the other end of the fuse pin, and locks the fuse pin with a roller by sliding the piece body along the protrusion at the other end of the fuse pin at a predetermined temperature. 2. The thermal fuse for a damper according to claim 1, further comprising a coil spring made of a shape memory alloy for releasing the damper. 7. The end of the cylindrical body is closed by a closing plate, a frame rod is protruded from the cylindrical body at the notch opening of the protruding part, and the locking mechanism is configured to engage the fuse pin within the cylindrical body. a linking body that is arranged in series and has a plurality of protrusions protruding from at least the circumferential side and a first elongated hole in the center;
It is provided protrudingly on the inner surface near the closing plate fixed to the end of the cylinder body, and receives the plurality of protrusions of the linking body against the spring bias of the fuse pin, so that the fuse pin can be removed from the cap. a plurality of receiving pieces for locking the fuse pin so as to maintain the protruding state, and the lock release mechanism is fitted into a second elongated hole formed in the closing plate, and is inserted from one end. a rotary driving elongated plate that is twisted and extended in a turn-like manner by a predetermined angle toward the linking body, and the other end of which is fitted into a first elongated hole of the linking body; the frame rod; and the rotary driving elongated plate; The connecting body is rotated by a rotary driving long plate that is interposed between them and rotates along the second elongated hole while pulling out the rotary driving long plate into the notch opening at a predetermined temperature, and the protrusion of the connecting body is rotated. 2. The thermal fuse for a damper according to claim 1, further comprising a coil spring made of a shape memory alloy for disengaging from the receiving piece of the main body. 8. A closing rod is fixed to the outer edge open groove of the diagonal notch groove of the actuating cylinder in which the roller is engaged so that the roller of the locking mechanism and the actuating cylinder of the lock releasing mechanism are not separated. The thermal fuse for damper described in 2.