JPS6158728B2 - - Google Patents

Description

[Detailed description of the invention] The present invention operates by sensing vibrations caused by earthquakes, etc.
The present invention relates to a vibration sensing device configured to operate other operated means provided by this operation.

EMBODIMENT OF THE INVENTION Hereinafter, a case where the present invention is implemented in an up-and-down type oil combustor will be described with reference to the drawings.

In FIG.
A core 4 having a core holder 37 is inserted between the two and vertically slidably. Reference numeral 5 designates a rack plate attached to the outer circumferential surface of the center-recessed portion of the core 4, and a rack gear 8 is engraved on this circumferential surface to mesh with a pinion gear 7 attached to one end of the rotating shaft 6. Reference numeral 9 denotes a return spring installed between the lead holder 37 and the upper end of the fuel tank 1, which moves the lead 4 in the downward direction when the lead 4 is moved upward by rotation of the rotating shaft 6. It is for reinforcement. Reference numeral 10 denotes a cylindrical body fixed to the front surface of the fuel tank 1, into which the rotating shaft 6 is inserted, and a pinion gear 7 is connected to the rack plate 5 through a bearing 11 on the outer periphery of the rotating shaft 6. A pressing spring 12 is provided. Reference numeral 13 indicates a cap nut screwed onto the tip of the cylindrical body 10. Reference numeral 14 designates a transmission shaft inserted into the tip of the rotating shaft 6, which includes a first cylindrical portion 16 in which a first notched groove 15 is formed, a square column portion 19 that fits into a square hole 18 of a gear 17, and a circle for a stopper. It consists of a plate part 20 and a second cylindrical part 22 in which a second notched groove 21 is formed, and after inserting the connecting plate 23 into the second notched groove 21 and the notched groove of the rotating shaft 6, An E-ring 24 for preventing slipping off is attached to connect the shafts 6 and 14 together. Reference numeral 25 is a knob having a recess 26 into which the connecting plate 23 and the E-ring 24 fit, and is fixed to the tip of the rotating shaft 6. The gear 17 is fitted into the prismatic portion 19 of the transmission shaft 14 via a spring 27, and its teeth 28 are meshed with teeth 30 formed on the body of the gear 29. When rotating in the moving direction, that is, clockwise, the restoring force of the spring 27 works together to rotate the gear 29 clockwise. Reference numeral 31 denotes a tooth portion formed on the peripheral edge of the gear 29, and a locking portion 33 of a claw plate 32 is engaged with the tooth portion 31 to prevent the gear 29 from reversing.
This claw plate 32 is rotatably attached to a pin 35 protruding from a base plate 34, and is always biased clockwise by a spring 36. 38 is a projecting piece 4 which is bent and fixed after being inserted into the hole 39 of the board 34.
0 is a protruding spring collection case, and this through hole 4 is
1 is inserted into the first cylindrical portion 16 of the transmission shaft 14 via a retaining ring 42. 43 is a spiral spring provided in the spring collection case 38, one end of which is connected to the board 3.
4, and the other end is attached to the first notched groove 15 of the transmission shaft 14, so that when the rotating shaft 6 and the transmission shaft 14 rotate clockwise, the force applied in the downward direction of the core 4 is applied. It is something to store.

Now, when the knob 25 is rotated clockwise, the rotating shaft 6 and the transmission shaft 14 rotate together, and the engagement between the pinion gear 7 and the rack gear 8 causes the core 4 to move upward against the return spring 9. , gears 17 and 29 rotate clockwise in conjunction with the rotation of transmission shaft 14. At this time, the spiral spring 43 attached to the first notched groove 15 of the transmission shaft 14 is tightened and urges the rotating shaft 6 and the transmission shaft 14 in the direction of reversing the rotation direction. Then, when the rotational force to the knob 25 is stopped,
Due to the engagement between the locking portion 33 of the pawl plate 32 and the tooth portion 31 of the gear 29, the rotating shaft 6 and the transmission shaft 7 are stopped in the reverse direction, that is, the core 4 is stopped at the raised position. Next, when manually lowering the core 4, by rotating the knob 25 counterclockwise, the transmission shaft 1
The tooth portion 28 of the gear 17 rotates in conjunction with the rotation of the gear 2.
The gear 17 slides counterclockwise on the toothed portion 30 of the gear 9.
slides on the transmission shaft 14 against the spring 27. Therefore, the rotating shaft 6 can be reversely rotated, and the pinion gear 7 and the rack gear 8 engage with each other, so that the core 4 moves downward. After that, when the rotating force to the knob 25 is stopped, the restoring force of the spring 27 causes the teeth 28 of the gear 17 to mesh with the teeth 30 of the gear 29, which is prevented from reversing by the pawl plate 32, so that the core 4 is rotated. Maintain the stopped state in the lower movement position. When the core 4 rises, the restoring force of the return spring 9 and the mainspring spring 43 causes the tooth 28 of the gear 17 to change to the tooth 30 of the other gear 29.
Although it seems that the upper part is sliding in the reverse direction, this can be solved by appropriately selecting the spring pressure of the return spring 9 and the spiral spring 43, the friction force between the teeth 28 and 30, and the spring pressure of the spring 27. . Next, the relationship with the vibration sensing mechanism will be explained. Reference numeral 45 denotes a weight placed on a support base 46 formed on the substrate 34, and a string or chain 47 is attached to the lower end of the weight. As shown in FIG. 3, the weight 45 consists of a cylindrical large-diameter main part 451 and a cylindrical small-diameter part 452 provided on the lower surface of the main part 451, with a through hole 453 bored in the center. There is. One end of the chain 47 is fixed to the upper surface of the weight 45, passed through the through hole 453, and pulled out from the lower surface of the weight. The lower surface of the weight 45 is substantially planar and is erected on the recess 461 of the support base 46 so as to be able to swing freely. Reference numeral 48 denotes an L-shaped actuating plate rotatably supported by a pin 49 of the base plate 34, and a portion (upper piece) 50 of this actuating plate is formed with a locking portion 51, and a locking portion 51 is formed on the actuating plate. The lower end of the string or chain 47 of the weight 45 is attached to the free end of the plate portion (lower piece) 52 through a hole 462 made in the recess 461. 53 is the board 34
A movable rod is rotatably attached to a pin 54 with a screw 55, and the locking portion 51 is attached to the free end of the movable rod.
A locking pin 56 that can be freely moved toward and away from the locking pin 56 is provided in a protruding manner, and a spring 58 that constantly urges the movable rod 53 downward is provided on a protruding rod 57 that is provided in a direction opposite to the locking pin 56. It is provided. 59 is a contact portion formed on the lower piece 52 (actuation plate portion) of the actuation plate 48, and when the locking pin 56 of the movable rod 53 is released from the locking portion 51 of the actuation plate 48, It is pressed by the locking pin 56. At this time, that is, when the locking pin 56 presses the contact portion 59, the actuating plate 48 rotates clockwise and the string or chain 4
A tension weight 45 that pulls 7 downward is placed on the support stand 46 in preparation for the next operation. 60 is a support shaft 61 of the claw plate 32
A regulating spring 63 is interposed between the bending piece 62 and the protruding rod 57 of the movable rod 53 to restrict rotation of the lever 60 due to its own weight. It is inserted. Further, a notch 64 formed at the lower edge of the lever 60 is provided with a protrusion 65 projecting from one end of the claw plate 32, and a folded piece 66 formed at the lower edge of the free end is provided with a protrusion 65. The protruding rod 57 of the movable rod 53 is provided.
Therefore, when the movable rod 53 moves downward, that is, the weight 45
When the locking portion 51 of the actuating plate 48 and the locking pin 56 of the movable rod 53 are disengaged from above, the protrusion 57 of the movable rod 53 engages the folded piece 6 of the lever 60.
6 to rotate this lever 60 counterclockwise. Therefore, the notch 64 and the protrusion 65 engage, and the claw plate 32 is rotated counterclockwise against the biasing force of the spring 36. Therefore, the locking portion 3 of the claw plate 32
3 disengages from the teeth 31 of the gear 29, and the core 4 suddenly descends due to the restoring force of the return spring 9 and the spiral spring 43, extinguishing the fire. 67 is a lever knob attached to the outer surface of the free end of the lever 60, and the movable rod 5
This is operated when the locking pin 56 of No. 3 is engaged with the locking portion 51 of the actuating plate 52 or when the lever 60 is forcibly moved downward manually. 68 indicates a device cover.

Here, a series of operations will be explained.

First, hold the lever knob 67 and turn the lever 60.
is moved upward to release the engagement between the notch 64 and the protrusion 65 of the claw plate 32, while the locking pin 56 of the movable rod 53 is moved upward.
is engaged with the locking portion 51 of the actuating plate 52. In this state, the knob 25 is rotated clockwise to engage the pinion gear 7 and the rack gear 8, thereby raising the core 4 to an arbitrary position. At this time, return spring 9
The power to urge the core 4 downward is stored by the mainspring spring 43, and the gears 17 and 29 rotate due to the rotation of the transmission shaft 14, and the locking part 33 of the pawl plate 32 and the tooth part 31 of the gear 29 are connected to each other. This meshing prevents the rotating shaft 6 and the transmission shaft 14 from reversing, that is, rotating counterclockwise, due to the restoring force. When the wick 4 is ignited in this state, conventionally known combustion is started. If you want to reduce the combustion flame, turn the knob 25 counterclockwise, and the transmission shaft 1
Gear 29 with gear 17 fixed as gear 4 rotates
The transmission shaft 14 slides counterclockwise on the teeth 30 of the transmission shaft 14.
reciprocates in the axial direction on the top. Therefore, the core 4 is lowered by the rotation of the rotating shaft 6.

Next, a case where vibration occurs due to an earthquake or the like will be explained. Now, when vibration occurs due to an earthquake or the like during normal combustion, the weight 45 senses this vibration and the support base 46
A string or chain 47 falling from above and attached to its lower end pulls the free end of the lower piece 52 of the actuating plate 48, causing the actuating plate 48 to rotate counterclockwise. Since the weight 45 has a high center of gravity, it has a very good response to vibrations, and if it is subjected to vibrations exceeding a predetermined level, it will topple over and fall from the support base 46. Therefore, unlike other sensing devices, it is possible to very accurately determine whether the vibration is above a predetermined level.

Now, when the actuating plate 48 rotates counterclockwise,
The locking pin 56 is detached from the locking portion 51 and the movable rod 5
3 is rotated counterclockwise by the biasing force of the spring 58. The locking pin 56 is connected to the abutting portion 5.
9 is pressed downward to reset the weight 45 on the support base 46, while the lever 60 is rotated counterclockwise by the protrusion 57, so that the notch 64 and the protrusion 65 are engaged. Therefore, the claw plate 32 rotates counterclockwise against the biasing force of the spring 36, and the locking portion 3
3 disengages from the tooth portion 31 of the gear 29, the rotating shaft 6 and the transmission shaft 14 are reversed by the restoring force of the return spring 9 and the spring spring 43, and the wick 4 suddenly descends and is instantly extinguished. The mechanism from the lever 60 operated by the protruding rod 57 to lowering the core 4 is the operated means in this embodiment, but in short, the mechanism operated by the movable rod 53 is the operated means. In addition, if you want to perform emergency fire extinguishing without vibration during normal combustion, press lever knob 6.
By manually pressing 7 downward, the claw plate 32
The locking portion 33 of the gear 29 may be disengaged from the tooth portion 31 of the gear 29, and the core 4 may be suddenly lowered.

As mentioned above, according to the present invention, vibration sensing is extremely accurate, and the reset mechanism is extremely simple because the weight can be returned to its original state simply by pulling the string or chain.

Note that when the rod is led out from the bottom of the small diameter part and inserted into the hole in the recess of the support base, the vertical and horizontal displacement of the lower end of the rod due to the swing of the weight is very small due to the small diameter of the small diameter part, and Since the maximum swing is limited by the rod coming into contact with the hole in the recess of the support base, it is not possible to obtain a sufficient displacement. Therefore, in this case, it is necessary to make the diameter of the small diameter portion considerably large in order to obtain sufficient displacement. On the other hand, if a string or chain is used, the weight can swing without any restrictions.
By taking the fall of the weight as the maximum swing and transmitting this to the string or chain, sufficient displacement can be obtained.

As described above, according to the present invention, since the diameter of the small diameter portion can be made small and the center of gravity can be made relatively high, the weight can be made small, which is a very remarkable effect.

In addition, even if the weight senses vibration and falls down, the string or chain is pulled by the operating plate and spring that are displaced by the vibration, and the weight is automatically returned to its original state, making it possible to manually operate the weight. There is no need to go through the trouble of putting it back together. Moreover, since the string or chain is given tension by the spring,
When returning, the weight returns immediately without shaking,
It will become stable. Note that if you simply pull the string or chain manually to return the weight, the string or chain will not continue to be pulled for a while.
There is a risk that the weight will not be stable and will fall over easily, and manual operations to return the weight to its original position will have to be repeated.

[Brief explanation of the drawing]

Figure 1 A, B, and C are front views, plan views, and side sectional views of an oil combustor equipped with the device of the present invention when the wick is rising; Figure 2 is an operating state diagram corresponding to Figure 1 A; FIG. 3 is an exploded perspective view of the device of the present invention, and FIGS. 4 and 5 are explanatory diagrams of the operation. 1: Fuel tank, 4: Core, 6: Rotating shaft, 9: Return spring, 14: Transmission shaft, 17: Gear, 25: Knob, 28: Teeth, 29: Gear, 30, 31: Teeth, 32 : Claw plate, 33: Locking part, 37: Core holder, 43: Spring, 45: Weight, 451: Main part, 45
2: Small diameter part, 46: Support stand, 461: Recessed part, 46
2: hole, 47: string or chain, 48: actuation plate, 5
0: Upper piece, 51: Locking part, 53: Movable rod, 56:
Locking pin, 60: Lever.

Claims (1)

[Claims] 1. A weight consisting of a large-diameter main portion and a small-diameter portion provided on the lower surface of the main portion and whose bottom surface is substantially flat and considerably smaller than the diameter of the main portion is placed in a recess on a support base. A string or chain fixed to the weight and led out from the bottom of the small diameter portion is pulled out through a hole drilled in a recess corresponding to the bottom, and the displacement of the weight that falls due to vibration is measured by the string. Alternatively, in a vibration sensing device that transmits vibrations to a chain, an actuation plate is provided which is rotatably supported in the vertical direction, and one free end of this actuation plate is positioned below the hole, and the free end is connected to the above-mentioned Attach the lower end of the string or chain, form a locking part on the opposite side of the actuating plate via the pivot point, and form an abutting part on the part of the actuating plate below this locking part. A movable rod is rotatably mounted, and a locking pin is provided at the free end of the movable rod, and the locking pin is movable toward and away from the locking portion and comes into contact with the abutting portion in the detached state. and a spring that constantly urges the free end of the movable rod downward, and an operated means that is actuated by the downward rotation of the movable rod. Features a vibration sensing device.