JPS6231770B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a spring closing operation device for a windbreaker, which operates a windshield disconnector by releasing a biased closing spring. The present invention relates to a spring-loading operation device for a shag breaker that can be operated by a small number of manual operations.

In conventional spring loading operation devices, an operating shaft with a disc-shaped closing lever at one end is rotatably supported on a frame, and a pivot pin installed near the outer periphery of the closing lever and a pivot pin installed in the frame. A closing spring is loaded between the fixed pin and the operating shaft is rotated half a turn to store the closing spring, and can be freely engaged with the notch of the closing lever to maintain the loaded state of the closing spring. By disengaging the closing hook provided in the holder, the closing spring is released and the operating shaft is rotated another half turn, and this half turn of the operating shaft activates a link mechanism for closing the cutter. It is configured to operate. Conventional closing spring manual energy storage mechanisms include a feed pawl wheel, a feed pawl, a stop pawl wheel, and a feed pawl provided on the operating shaft.
This was done via a ratchet mechanism consisting of a stop pawl and a lever, which increased the time required to store energy and required a longer operating shaft.
This also became a factor in increasing the size of the spring loading operation device.

The present invention has been made in view of the above-mentioned problems, and its purpose is to provide a simple structure and to enable the closing spring to be energized by two manual operations. An object of the present invention is to provide a spring closing operation device for a disconnector, and the present invention will be described in detail below with reference to the drawings. In the following explanation, the front-back direction refers to a direction corresponding to the left-right direction in FIG. 1, and the left and right directions refer to directions corresponding to the upper and lower directions in FIG. 1. is a direction corresponding to the vertical direction in FIG.

1, 2, and 3 show a plan view, a right side view, and a left side view of a spring closing operation device 1 according to the present invention, including a pair of link frames 13 erected facing each other, etc. a frame 2 consisting of a frame 2, an operating shaft 3 rotatably supported by the frame 2, and a disc-shaped input lever 4 fixed to one end of the operating shaft 3.
The input lever 4 is loaded between the pivot pin 5 installed near the outer periphery of the input lever 4 and the fixed pin 6 installed in the frame 2, and is loaded with energy by half a rotation of the operating shaft 3. Spring 7 and the pivot pin 5 on the closing lever 4 to maintain the loaded state of the closing spring 7.
A closing hook 9 that can be freely engaged with a notch 8 formed at a position opposite to the closing hook 9 is provided on the operating shaft 3 which is further rotated by half a rotation due to the released energy of the closing spring 7 due to disengagement of the closing hook 9. a closing cam 10, a link mechanism 11 operated by the closing cam 10 to close a shutter disconnector (not shown), and a manual link mechanism 11 that rotates the operating shaft 3 by half a turn to charge the closing spring 7. It is composed of a power storage mechanism 12 and the like.

The frame 2 is composed of a pair of link frames 13 erected at appropriate distances, and a U-shaped manual frame 14 attached to the front end of the link frames 13 to connect the pair of link frames 13. . Near the front end of the link frame 13,
The operating shaft 3 extending horizontally in the left-right direction is connected to the link frame 1 via a fastener 15 such as a bolt.
Almost rectangular bearing support plate 1 attached to 3
It is rotatably supported by 6. Operation axis 3
As shown in FIGS. 1 and 3, the disc-shaped closing lever 4 is press-fitted into the left end of the closing lever 4, and a support for supporting one end of the closing spring 7 is provided near the outer periphery of the closing lever 4. A metal fitting 17 is rotatably mounted via a pivot pin 5. The closing spring 7 is fitted into a pipe-shaped guide tube 19 which is slidably fitted into the guide portion 18 of the support fitting 17.
The other end is supported by a spring receiver 20 provided integrally with the guide tube 19, and the base of the guide tube 19 is rotatably supported by the fixing pin 6 protruding leftward of the link frame 13. ing.

The notch 8 is formed on the outer periphery of the closing lever 4 at a position approximately symmetrical to the pivot pin 5 with respect to its center of rotation, and is attached to the link frame 13 so as to be rotatable around the center via the pin 21. A supported input hook 9 is provided so as to be engageable with the notch 8 via a roller 22 rotatably provided at one end thereof. The closing hook 9 is for maintaining the charged state of the closing spring 7 by engaging with the notch 8 and releasing the stored energy of the closing spring 7 by releasing the engagement. The roller 22 is always urged to contact the outer peripheral surface of the closing lever 4 via a torsion spring (not shown). A notch 8 is provided at the other end of the input hook 9.
The tip of a manual input button 23 for releasing the engagement of the roller 22 with the roller 22 is provided so as to be freely abuttable (see FIG. 2). In addition, manual input button 23
is the support member 2 attached to the manual frame 14.
4 so as to be movable back and forth, and is always urged in a direction away from the other end of the closing hook 9 by a spring-like spring 25 (see FIG. 1).

As shown in FIG. 4, a closing cam 10 is attached between the pair of link frames 13 by being press-fitted onto the operating shaft 3, and behind it, a half of the closing cam 10 is inserted when the closing spring 7 is released. A trip-free linkage 11 is provided which is actuated by rotation for closing the sheath. The link mechanism 11 includes a connecting pin 2 attached to the upper end.
Connecting link 27 that can be freely connected to the cutter via 6
and a roller shaft 2 on which a roller 28 is rotatably mounted.
Output links 30a and 30b whose central portions are bendably provided by 9, and support links 36
It is composed of etc. In other words, it is as follows. The upper end of an output link 30a using a toggle mechanism is pivotally attached to the lower end of the connecting link 27 by a pin 31. The tip of a regulation lever 32 that regulates the movement direction (vertical direction) of the upper end of the output link 30a is rotatably attached to this pin 31, and the end of the regulation lever 32 is rotatable via a support shaft 33. Freely moveable link frame 13
It is attached to. Both ends of the pin 31 are connected to vertically elongated holes 34 (third
(see figure), and one end thereof is connected to a loading hook device as described below. The upper end of a support link 36 that supports the output link 30b is pivotally attached to the lower end of the output link 30b via a pin 38 on which a roller 37 is rotatably fitted. The support link 36 is rotatably attached to a support shaft 39 horizontally suspended near the lower end of the frame 13, and the support link 36 is rotated about the support shaft 39 in FIG. It is always biased counterclockwise. A first contact 43 of a tripping hook 42 rotatably provided near the rear lower end of the link frame 13 can come into contact with the roller 37 via a support shaft 41. The tripping hook 42 is always biased in the counterclockwise direction in FIG. A second contact 45 extending to the opposite rear is formed, and this second contact 45 and the first contact 4
3, a third contact 46 extending upward is integrally formed. And the second contact 4
5 and the third contact 46, there is a tripping hook 4 that is horizontally suspended between the pair of link frames 13 and the third contact 46.
A stop pin 47 is interposed to restrict the rotation range of 2. Further, the tripping hook 42 is integrally formed with a connector 48 that protrudes downward, and this connector 48 has a manual handle that extends horizontally in the front and back direction near the lower end of the link frame 13. The rear end of the tripping rod 49 is connected as appropriate. The manual tripping rod 49 is for rotating the tripping hook 42 against the biasing force of the ammunition 44, and its front end is located near the front of the manual frame 14 as described below. It is supported.
Further, at the rear end of the link frame 13, in order to rotate the tripping hook 42 similarly to the manual tripping rod 49, a tripping electromagnetic device 51 is provided with a plunger 50 that can freely press the second contact 45. is installed.

On the left side of the link frame 13 are shown FIG.
As shown in FIG. 3, a closing hook device 52 is installed which restricts rotation of the closing hook 9 in conjunction with the operation of the link mechanism 11. One end of the support shaft 33 to which the regulation lever 32 of the link mechanism 11 is attached projects to the left from the link frame 13, and an isosceles triangular shape forming a part of the loading lock device 52 is provided at the end. The vicinity of the top of the transmission lever 53 is rotatably mounted. The tip of the pin 31 protruding from the elongated hole 34 is rotatably connected to one bottom corner of the transmission lever 53, and one end of a connecting bar 54 extending forward is connected to the other bottom corner. is pin 5
It is pivotally connected via 5. A long hole 56 extending in the same direction as the extending direction of the connecting bar 54 is formed at the other end of the connecting bar 54.
A pin 58 implanted in one end of a lock lever 57 bent into a substantially doglegged shape is movably engaged. The lock lever 57 is rotatably supported near its center via a shaft 59 that also serves as a connecting member that connects the upper end portions of the pair of link frames 13. It is always biased in a counterclockwise direction in FIG. 3 about the shaft 59, and its other end is provided so as to be able to come into contact with the other end of the input hook 9.

As shown in FIGS. 1 and 2, the manual energy storage mechanism 12 includes a substantially Y-shaped rotating lever 61 rotatably attached to the manual frame 14, and a reciprocating rotation of the rotating lever 61. a feed lever 62 in the shape of a square that is oscillated by the oscillating movement of the feed lever 62; a driven wheel 63 that is rotated approximately 1/4 turn by the oscillating movement of the feed lever 62 and is mounted on the operating shaft 3; Operation axis 3
It is comprised of a stopper 64 and the like that engages with the notch 8 of the input lever 4 to prevent the operating shaft 3 from reversing when rotated 1/4 turn. That is, the center portion of a rotating lever 61 is rotatably supported on the right end of a shaft 65 that is attached to the shaft 65 passing through the upper portion of the front end of the manual frame 14. It is constantly biased counterclockwise in FIG. 2 by a bullet 66 such as a torsion spring. The rotation lever 61 is
It is formed into a substantially Y shape by a handle attachment part 67 that protrudes downward, a stopper part 68 that protrudes forward, and a tip part 69 that protrudes rearward. 6
A handle 70 used when rotating the handle 1 is detachably attached. Reference numeral 71 denotes a stopper pin that restricts the rotation range of the rotary lever 61, and is implanted in the manual frame 14 at the rear of the shaft 65 supporting the rotary lever 61 and above the tip 69. . The proximal end of the feed lever 62 bent in the shape of an angle is rotatably attached to the distal end 69 of the rotary lever 61 via a pin 72. An engaging portion 73 is formed that can freely engage pins 78 and 79 fixed to the driven wheel 63. In addition, the feed lever 62
Between the locking pin 74 installed near the base end of the manual frame 14 and the bottom end of the manual frame 14, the feed lever 62 is constantly urged downward to bring its tip into contact with the driven wheel 63. A bullet 75 such as a coil spring is tensioned for this purpose. The driven vehicle 63 is a first
As shown in the figure, it is constructed by integrally connecting the centers of a pair of discs 76 that are appropriately spaced apart by a circular boss 77, and near the outer periphery, the center angle is about 90 degrees. The first and second pins 7 are
8 and 79 are fixed between a pair of opposing discs 76. In this embodiment, a roller 8 that can freely engage with the engaging portion 73 is attached to each of the first and second pins 78 and 79.
0 is rotatably fitted.

The stopper 64, as shown in FIG.
The lower front end portions of the pair of link frames 13 are integrally connected, and the central portions of the link frames 13 are rotatably supported by a shaft 81 protruding to the left, and the ammunition 8 such as a torsion spring.
2, it is always biased counterclockwise in FIG. Therefore, the engaging end 83 of the stopper 64 is always in contact with the outer circumferential surface of the closing lever 4, and engages with the notch 8 when the closing spring 7 is approximately half loaded. . The reference numeral 84 indicates a stopper pin that restricts the rotation of the stopper 64, and when the other end 85 of the stopper 64 comes into contact with it, the degree of engagement of the engaging end 83 with the notch 8 is restricted. There is. Although the stopper mechanism that prevents the operating shaft 3 from being reversed by the closing spring 7, which is approximately half-energized by the stopper 64 that engages with the notch 8 of the closing lever 4, has been described above, the stopper mechanism is not limited to this embodiment. For example, the driven shaft 63 may be provided with a notch, and a stopper may be provided in the notch so as to be freely engageable. Also, 86
A supporting member movably supports the front end of the manual trip rod 49, and is appropriately attached to the lower front end of the manual frame 14.
Between this support member 86 and a bullet locking member 87 attached to the manual tripping rod 49, the manual tripping rod 49
A bullet device 89 such as a spring is loaded to constantly urge the handle portion 88 to contact the support member 86.

The action of accumulating the closing spring 7 using the manual accumulating mechanism 12 with the above configuration is explained in Figs. 5 to 8.
This will be explained using figures. Note that before the charging spring 7 starts accumulating energy, the charging spring 7 is extended, the closing hook 9 is disengaged from the notch 8 of the closing lever 4, and the driven wheel 63 is
The two pins 78 and 79 implanted in are located at the front as shown in FIG. First, the handle 70 is attached to the handle mounting portion 67 of the rotating lever 61, and the rotating lever 61 is moved to the shaft 65 in FIG.
The stopper portion 68 is rotated clockwise around , and the stopper portion 68 is brought into contact with the stopper pin 71. Then, the feed lever 62 moves forward while swinging, and its engaging portion 73 engages with the first pin 78 of the driven wheel 63 as shown in FIG. Next, when the rotating lever 61 is rotated in the opposite direction to the above-mentioned direction and the handle 70 is pushed down until its tip 69 contacts the stopper pin 71, the feed lever 62 moves rearward and the sixth As shown in the figure, the driven wheel 63 rotates about 1/4 and the closing spring 7
Approximately half of the energy is stored. In this state, the tip of the stopper 64 constituting the stopper mechanism engages with the notch 8 of the closing lever 4 as shown in FIG. The shaft 3 is not reversed by the closing spring 7.

Next, as in the case described above, when the rotating lever 61 is rotated clockwise about the shaft 65 and the stopper portion 68 is brought into contact with the stopper pin 71, the engaging portion 73 of the feed lever 62 is moved. It engages with the second pin 79 of the driven wheel 63 (see FIG. 7). From this state, when the rotating lever 61 is rotated counterclockwise and its tip 69 is brought into contact with the stopper pin 71 as shown in FIG.
The driven wheel 63 further rotates by 1/4, and as shown in FIG. 3, the closing spring 7 passes through the bottom dead center and is loaded with rotational force in the direction of arrow A. In other words, the roller 22 of the closing hook 9 engages with the notch 8 of the closing lever 4 to maintain the stored energy state, and the loading of the closing spring 7 by the manual accumulating mechanism 12 is completed.

In order to release the loaded closing spring 7 and close the shatter breaker, press the closing hook 9 against the notch 8.
When the engagement is released via the manual closing button 23 (see FIGS. 1 and 2), the operating shaft 3 is further rotated by half a turn by the released energy of the closing spring 7,
The closing cam 10 attached to the operating shaft 3 extends the bent output links 30a, 30b of the link mechanism 11 as shown in FIG. Ru. Then, the output links 30a, 30b are slightly bent to the opposite side, and the roller 28 is brought into contact with the stopper plate 35, thereby maintaining the closed state. Further, the closing spring 7 released by performing the closing operation can be stored again by one revolution of the operating shaft 3, and as described above, can be stored again by the manual storage mechanism 12, When the closing spring 7 is charged again in the closed state of the breaker, the closing hook 9 is restrained by the closing hook device 52, and disengagement of the closing hook 9 is regulated.
Therefore, there is no risk that the closing spring 7 will be released without any load.

As described above, the present invention provides a driven wheel fixed to the operating shaft on the outside of the frame, and two pins are implanted near the outer periphery of the driven wheel at positions where the center angle is about 90 degrees to each other. The vicinity of the tip of the rotary lever is rotatably attached to the outside of the frame, the base end of the feed lever is rotatably connected to the tip of the rotary lever, and the tip of the feed lever is connected to the pin. A bullet is provided that forms an engaging portion to engage and urges the feed lever toward the driven vehicle, while preventing the operating shaft from reversing when the closing spring is charged by approximately 1/2 of its force. Since the stopper mechanism is provided, the closing spring can be charged with two manual operations, and the purpose can be achieved with a simple structure. In addition, since there are only two pins that engage with the feed lever, there is no risk of overstoring the closing spring even if the rotating lever is operated by mistake.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention.
2 and 3 are a plan view, right side view, and left side view of the device according to the present invention, and FIG. 4 is a cross-sectional explanatory view of the link mechanism, and FIGS. 5, 6, 7, and FIG. 8 is an explanatory diagram of the operation of the manual energy storage mechanism. 2... Frame, 3... Operating shaft, 4... Closing lever,
7... Closing spring, 8... Notch, 9... Closing hook, 1
0... Closing cam, 11... Link mechanism, 61... Rotating lever, 62... Feed lever, 63... Followed wheel, 64...
Stopper, 69... Tip part, 73... Engagement part, 75...
Bullet machine, 78, 79...pin.

Claims (1)

[Claims] 1. A link mechanism is provided between a pair of frames, one end of which is rotatably connected to the frame, and the other end of which is connected to an armature and a disconnector. A closing cam that can be freely engaged with the link mechanism is fixed to the operating shaft between a pair of frames, a closing lever is fixed to the operating shaft on the outside of one of the frames, and one end of the closing spring is fixed to the operating shaft. is rotatably coupled to a position away from the axis of the closing lever, and the other end is rotatably coupled to one frame, a notch is provided on the outer periphery of the closing lever, and the closing spring is loaded with energy. The central part of the loading hook that prevents rotation of the loading lever in the closed state is rotatably attached to one frame, and a spring is provided that urges one end of the loading hook toward the notch, and the outside of the other frame A driven wheel is fixed to the operating shaft, and two pins are implanted near the outer periphery of the driven wheel at positions with a center angle of about 90 degrees to each other, and the pins are fixed near the tip of the rotating lever. It is rotatably attached to the outside of the other frame, and the base end of the feed lever is rotatably connected to the tip of the rotating lever, and an engaging portion that engages with the pin is formed at the tip of the feed lever. In addition, a bullet is provided to bias the feed lever toward the driven vehicle, and a stopper mechanism is provided to prevent the operating shaft from reversing when the closing spring is loaded with approximately 1/2 of its energy. Spring closing operation device for Tosurushiya disconnector.