JPH0152555B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a binary external force (electric/manual) switching (gear) device that operates a horizontally installed long drive shaft for opening and closing a series of windows in a slow and fast manner.

Conventionally, window opening/closing devices (satushi operators) were installed for each single window when the window was large, but on the other hand, when the window was used as a smoke evacuation device, multiple or more windows were installed for multiple windows. It is customary for cases to be installed in a configuration that allows all windows to be opened and closed at the same time.

Therefore, in order to open and close the multiple windows all at once in a slow and rapid manner, the driving long shaft is installed horizontally on the stile side of the window opening in advance, and the long shaft is moved either manually or electrically as needed. If you switch and operate (rotate) accordingly,
The non-reversible chains, strips, arm rods, etc. that engage the individual windows change into linear reciprocating motion, allowing the multiple windows to be opened and closed all at once, slowly and rapidly.

In Utility Model Publication No. 1987-6705, which was previously proposed by the same inventor as this invention, there is a prior art in which an electric/manual switching clutch mechanism on the long shaft for driving, which is the main part of a window opening/closing device, is disclosed. However, in implementation, the clutch is switched by a solenoid, which has the following drawbacks.

In other words, when a load is applied to the output shaft,
The problems include that the clutch cannot be switched reliably and that the electric capacity of the motor and solenoid is required.

The purpose of this invention is to fundamentally solve the problems of the above-mentioned prior art, and to provide a device that can reliably switch between electric and manual dual external forces even when a load is applied to the output shaft. It is something.

An embodiment in which the present invention is implemented by being installed inside a case and attached to a long shaft for opening and closing a continuous window will be described below with reference to the drawings.

The first diagram shows an example in which the switching (gear) device A of the present invention is completely housed inside a case and attached to the long drive shaft of a continuous window opening/closing device.

Each window opener 2 fixedly installed on the stile side of the window opening 1...
2 is a long shaft 4 for driving using a universal joint 3 in the connecting part
and each window W is connected by a strip 5
(A non-reversible chain or a geared cable is most often used) to smoothly push and pull the so-called linear reciprocating motion.

The switching (gear) device A according to the present invention is entirely housed in a case 6, except for a part of the main output shaft connected to the long shaft 4, and has an endless ball chain C in the front for operating a manual shaft. is suspended from the ball chain wheel 7 and hanging down (Fig. 1).

Then, when the ball chain C is manually pulled, the output shaft 8 is rotated at a reduced speed due to the increased rotational force due to the principle of engagement between the worm and the worm wheel. When the motor 15 starts to start, rotation torque is applied to the case 6 by the diagonal gear 16 fixed to the shaft of the electric motor 15.
The worm wheel 13 on the output shaft 8 side, which transmits high-speed rotation to the worm 18 at the other end via the diagonal gear 17 at the end of the link shaft 19 vertically installed inside, and is always in mesh with the worm 18, is based on the meshing principle. It rotates at a reduced speed in inverse proportion to the number of threads on a certain worm and the number of teeth on the worm wheel.

In such a case, since one original bevel gear 11 of a known differential bevel gear mechanism (hereinafter referred to as D device) rotatably fitted to the output shaft 8 and the worm wheel 13 are integrated, the original The bevel gear 11 also decelerates and rotates at the same time, interlocking the planetary bevel gears 9, 9, which are fitted oppositely to the end side of the vertical shaft 10 fixed orthogonally to the output shaft 8 in the D device. The other original bevel gear 12 that meshes with the gears 9 and 9.
A worm foil 14 is integrally formed in the
The worm wheel 14 is connected to the sub-shaft side from the manual shaft through the speed-increasing gear train and engages with the worm wheel 14 from a different direction and self-locks. Therefore, the worm wheel 14 cannot be rotated, and therefore cannot be rotated by the electric motor 15. The torque rotates the output shaft 8 in a state unrelated to the manual shaft side, and connects the universal joint 3 outside the window opening/closing case 6.
The long shaft 4 for opening and closing the window, which is connected to the main shaft 4, is driven and rotated (Fig. 2).

On the other hand, when the rotating torque by the electric motor 15 is stopped and the output shaft 8 is rotated by manual force, the manual force is transmitted to the output shaft 8 through the following path.

That is, since the ball chain wheel 7 is fixed to the end of the manual shaft 25 disposed orthogonally to the output shaft 8 and the endless ball chain C is suspended vertically, one side of the ball chain C is suspended. When towed, the rotation torque of the ball chain wheel 7 is transferred from the large spur gear 21 at the end of the manual shaft 25 to the manual shaft 2.
5 is transmitted to the small spur gear 22 of the intermediate shaft 28 arranged in parallel with the intermediate shaft 28, and furthermore, the small spur gear 24 at the end of another subshaft 27 is interlocked with speed increase through the large spur gear 23 at the end of the intermediate shaft 28. The worm 26 on the 27 side also rotates at an increased speed, and the worm wheel 14 integrated with the original bevel gear 12 of the D device on the output shaft 8 is rotated at a reduced speed. In such a case, the original bevel gear 11 on the opposite side of the D device
Since the worm wheel 13 integrated with the motor 15 is self-locked by the worm 18 linked from the electric motor 15 side, when the worm wheel 13 is stopped, only the rotational torque of the manual shaft 25 operates to rotate the output shaft 8. The worm wheel 14 and the original bevel gear 12 are rotated, and the output shaft is rotated in a state unrelated to the motor side by the rotational torque of the planetary gears 9, 9 which are interlocked at the same time, and the output shaft is also connected outside the case. It rotates the long axis 4 for opening and closing the window (the third
figure).

The main part that plays a leading role in this invention is an output shaft 8 that is mounted on both side walls of the case 6 and connected to a long drive shaft 4 for opening and closing the window externally by a universal joint 3. By using worm wheels with original bevel gears arranged opposite to the D device, and transmitting rotational torques of manual force and electric power to both of the worm wheels individually, one of the worm wheels can be rotated. When the worm wheel moves, another gear linkage mechanism that stops other worm wheels is divided into a manual side and an electric side, and is engaged with each worm wheel.

Therefore, even if a load is applied to the output shaft 8,
Since one of the worms engages with the worm wheel in the D device and is self-locked, it is in a completely restrained state, so it is extremely easy to rotate the other worm, so appropriate switching is possible. It is something that can be done.

The basic principle of the binary external force switching gear mechanism that engages with the D device, which is the essential part of this invention, has been outlined above, but the details are as follows.

An output shaft 8 connected to the long shaft 4 for opening and closing the window and having a known D device is supported by bearings on both side walls of the case 6, and the main part D device is disposed approximately in the center. A vertical shaft 10, which is orthogonal to the output shaft 8 of the D device and fixed by a stop pin 20, is provided with planetary bevel gears 9, 9 facing each other at both ends, and rotates freely on the output shaft 8 on both sides. The worm wheels 13 and 14 to be obtained are configured to mesh with the original bevel gears 11 and 12 that are integrated.

In practice, oil-free metal is fitted into the shaft holes of the planetary bevel gear and the original bevel gear, respectively, so as to maintain smooth rotation relative to the output shaft.

Next, the electric motor 1 arranged parallel to the output shaft 8
A linkage shaft 19 having another diagonal gear 17 at the end is connected to the case 6 so as to mesh with the diagonal gear 16 at the end of the fifth shaft.
The worm 18 at the end of the link shaft 19 is configured to mesh with the worm wheel 13 with one of the original bevel gears 11 of the D device described above, and the large spur gear 21 is disposed perpendicularly to the output shaft 8. an intermediate shaft 28 having a small spur gear 22 and a large spur gear 23, and a subshaft 2 having a small spur gear 24.
D.
Worm wheel 1 with original bevel gear 12 on one side of the device
At the same time, a ball chain wheel 7 is fixed in front of the manual shaft 25, and the ball chain C is suspended vertically in an endless manner, and the rotating torque generated by manual force is applied to the worm 26 at the end. The output shaft 8 can be rotated at a reduced speed by transmitting the increased speed.

Binary external force switching (gear) device A according to this invention
The output shaft 8, which is connected to the window opening/closing long shaft 4 by a universal joint and serves as the driving shaft for driving the long shaft 4, uses the well-known D device, so the main parts of the main parts are not the same. When a high-speed worm that has passed through the gear linkage from the electric motor 15 side engages with the worm wheel integrally formed on the extension side of the bevel gear, the planetary bevel gears 9, 9
The output shaft 8 decelerates and rotates due to the operation of the vertical shaft 10 accompanying the rolling, and the worm wheel on the other original bevel gear side is rotated by the speed increasing worm engagement via the gear linkage from the manual shaft 25 side. While the output shaft 8 is self-locked and continues to stop rotating, the output shaft 8 with the D device rotates in conjunction with gears limited to electric power.

On the other hand, when switching the output shaft 8 from electric power to manual power, the electric motor 15 is first cut off and the ball chain C hanging down from the case 6 is pulled and the manual shaft 2 is switched.
5, the increased rotational force uses the worm 26 at the end to decelerate and rotate the worm wheel 14 with the original bevel gear, which was self-locked when the device D was electric, and rotated the worm wheel 14 with the original bevel gear 9, as in the electric operation. 9 is rolled to rotate the output shaft 8 by the operation of the vertical shaft 10, and while the worm wheel with the original bevel gear is self-locked by the worm linked from the other electric motor side, the rotational force is generated by manual force. The output shaft 8 is rotated using only the screw.

When opening/closing multiple windows, there are cases where slow opening/closing is always performed manually, and cases where rapid opening/closing is required due to a fire outbreak or weather change.In either case, the long shaft 4 for opening/closing the window is It has to be switched and rotated slowly and rapidly, so a switching device for dual external force is absolutely essential, especially for multiple window opening/closing devices, which are most often used as smoke evacuation devices. Powered window opening devices are required by the Fire Service Act, and window opening/closing devices that exclude this are not to be implemented.

This invention is an extremely high-performance dual external force switching device that can operate accurately, surpassing the conventional technology in the speed switching device for opening and closing windows as described above, and is the most popular conventional product on the market. A comparison with the supplied switching device with solenoid is as follows.

(Conventional product) The basic technology is to switch between manual and electric power by operating a clutch using a solenoid (electrical switching means).

The results are as follows: (1) If a load is applied to the output shaft, reliable switching cannot be performed.

(2) Both the electric capacity of the motor and the solenoid are required.

(3) Reduction gear, solenoid, and clutch are essential (self-locking is not possible with spur gear reduction) (Product of the present invention) The basic technology is based on the alternating self-locking action of both worm foils of device D and the worm on the side of the binary external force. Therefore, it uses a method to switch between manual and electric power (switching means using interlocking gears).

The results are as follows: (1) There is no problem in switching even if a load is applied to the output shaft.

(2) Only the electrical capacity provided by the motor is required.

(3) The worm replaces all the functions of the reduction gear, solenoid, and clutch.

(4) Both the deceleration and self-locking effects of the worm and worm foil can be obtained at the same time.

As explained above, this invention replaces the conventional clutch switching device using a solenoid with a semi-automatic switching means using an interlocking gear, so that even when a residual load is generated on the output shaft, it can be smoothly and
Since electric and manual switching operations can be performed reliably, the slowing speed when opening/closing multiple windows can be instantaneously achieved, resulting in the effect of easily selecting and operating the windows.

[Brief explanation of drawings]

The figures show an embodiment of the switching device of the present invention. Fig. 1 is a reference perspective view of the device described in this explanation attached to a multiple window, and Fig. 2 is a perspective view of the interlocking gear and output shaft seen through the inside of the case. Fig. 3 is a perspective view of the engaged state, Fig. 3 is a perspective view when the manual force switching in Fig. 2 is performed, Fig. 4 is a central vertical sectional view of the main output shaft, and Fig. 5 is a diagram of the ball chain. It is a usage state diagram showing an application example using another rotary operation box instead. D... Differential bevel gear mechanism (D device), 6... Case, 8... Output shaft, 11... Original bevel gear, 12...
Original bevel gear, 13... Worm foil, 14... Worm foil, 15... Electric motor, 16, 17...
Diagonal gear, 18...worm, 19...coupling shaft,
25...manual axis, 26...worm, 27...driven axis.

Claims (1)

[Claims] 1. In the electric/manual switching device connected to the long shaft for opening and closing multiple windows, a differential bevel gear mechanism D is connected to the long shaft and specially installed on the output shaft 8 mounted in the case 6.
Worm foil 13 extended to the original bevel gear 11
In addition, a worm 18 is provided on one side of a linkage shaft 19 that is interlocked with the electric motor 15 by other diagonal gears 16 and 17.
The worm wheel 14, which is extended to the other original bevel gear 12 side, is arranged so that the worm 26 at the end of the driven shaft 27, which has passed through the speed increasing gear train of the manual shaft 25, meshes with the worm wheel 14. A switching device for binary external force on a long axis for opening/closing a window, characterized by: