JPH054541Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a multiple window opening/closing device with a maintenance function (safety measure device).

(Prior art) Conventionally, large multiple windows have great dead weight and wind pressure, so devices that open and close pantograph-like by changing the angle of the arm arm mechanism called a Y-shaped arm are often used, and their starting force is The mechanism is such that it is generated exclusively at the end of the elbow arm on the opposite side of the window, and the window is opened and closed by enlarging and contracting the angle at the bifurcated portion of the Y-shaped rod. For example, in the opening/closing device disclosed in Japanese Utility Model Publication No. 18-6348, the end (nut) of a long rod pivoted to the window is moved back and forth by external force rotation of the screw shaft, and the short rod is used as a guide support to open and close. Therefore, it is safe because the screw lock prevents the window from lowering rapidly, but if the mutual teeth of the Y-shaped rod nut and screw shaft in each window are not matched, each window will be stuck when closed. This results in a defective device due to the entry of wind and rain and the ventilation effect during cooling. Therefore, adjusting the threaded fit is extremely troublesome, and if dust gets into the threaded part, the drive rotation of the screw shaft will be inhibited. There is some concern as the drive unit wears out.

In addition, some devices have been seen in which an endless chain is mounted between chain wheels spaced at appropriate intervals, and the Y-shaped arm is expanded and contracted by the movement of the chain to open and close windows. After all, if an unexpected disconnection or pin detachment occurred at the connection point of the chain, the rapid downward movement of the window could cause a collision, which was considered dangerous.

(Problems that the invention aims to solve) Strong dampers and Y-shaped arm mechanisms that are often used in large multiple window opening/closing devices have the following drawbacks: The latter Y-shaped arm mechanism is extremely expensive due to its necessity, placing a heavy burden on the consumer, and is not easy to repair or adjust, and requires considerable effort to retract the telescopic shaft, making it impossible to do it manually. There are two types: those that use screw pairs and those that follow the movement of a chain of chainless track strips.In the former case, it is extremely troublesome to adjust the screws for synchronized closing of multiple windows, and the rotating operation of the screw shaft is difficult for the windows. Overloading occurs due to interference from own weight and wind pressure, and the latter poses a worrying problem, as in the event of an unforeseen situation such as a broken chain or separation of a connection point, the shock caused by a sudden drop could lead to an accident. have.

(Purpose of the invention) We added functions that ensure 100% safety, are robust, inexpensive, and extremely easy to handle to the Y-shaped arm mechanism, which is most often used in large multiple window opening/closing devices, to meet the needs of the demand group. The main purpose is to reduce the burden on the constructor, save labor, and improve reliability.

(Means for solving the problem) The multi-window opening/closing device with a maintenance function according to this invention is in sliding contact with a pulley of a pedestal installed vertically at the middle lower side of each window opening frame, and both ends are connected with a chain strip. The middle part of one side of the rod in the parallel part of the chain wheel is meshed with the chain wheel, and the middle part of one side of the rod is easily ground to make it coaxial with the worm wheel in another caterpillar reducer, which is rotated by external force such as manual or electric power. The other side of the branch rod is meshed with the upper small gear and one side is pivotally connected to the top surface of the mount.
The other side is pivotally connected to the window edge, and the other side is pivotally connected to the middle part of the arm rod which is pivotally connected to the upper surface of the rod.

(Function) When the vertical shaft in the caterpillar reducer is rotated by any external force (manual force or electric power), the worm wheel meshing with the caterpillar (worm) integrated with this vertical shaft is interlocked, and at the same time, the worm wheel A small gear (pinion) coaxially integrated with the pinion also rotates in conjunction with the pinion, thereby moving the rack that meshes with the pinion in the lateral direction (linear direction). When the rack moves, the arm rod whose end is pivotally attached to the rod that is the same as the rack also follows and moves, but in this case, the middle part of the arm rod and the upper surface of another frame are connected to the arm rod. The arm rod, guided by becomes.

Next, if the reverse operation of the fenestration is performed using an external force (manual or electric), the rack will move in the opposite direction to that when the fenestration was opened. Therefore, the arm rod, which was at a right angle to the rack, will be supported from the diagonal direction. The angle between the two is enlarged by the tension of the branch rod that was guiding it.
In other words, they both tilt downward to the easy side, and the arm lever pulls the window closed.

By the way, as mentioned above, even if the connecting part between the chain and the rod breaks or the pin or plate comes off while the window is being opened and closed, it will still be integrated with the small gear that meshes easily. Since the worm wheel is constantly engaged with the caterpillar on the extension line of the drive shaft, even if the joint is severed or separated, the rack will not move and the window will remain in a restrained state, ensuring maintenance. The main purpose of the invention is achieved.

(Embodiment) Fig. 1 is a perspective schematic view of an embodiment of this invention installed in a plurality of large windows, in which 1 is a pedestal which is vertically disposed at the middle lower side of each window opening frame F; Pulleys 2, 2 are respectively pivotally attached to the upper and lower stages inside, and another rod 3,
4 are inserted through the frame 1 and are in sliding contact with the pulley 2. A rack 5 slightly longer than the distance from fully closed to fully open the window W is cut in the middle part of the rod 4. The rods 4 may be welded to both ends of the rack 5 in advance to have the same length as the other rods 3, and a chain somewhat longer than the length of the rack 5 may be attached to each end of the rods 3 and 4. The rods 6, 6 are connected and engaged with the chain wheels 7, 7 to form an endless track.
4 are parallel to each other in sliding contact with the pulleys 2, 2 of the pedestal 1, and are configured to smoothly reciprocate in the lateral direction.

Next, the wall pillar P formed between the windows W
As shown in the second diagram, the caterpillar reducer 8 installed has a caterpillar 10 (worm) in the center of the vertical shaft 9, and both ends 11, 11 of the caterpillar reducer 8 protrude above and below the reducer 8 so that it can be connected to other shafts. be. The worm wheel 12 that meshes with the caterpillar is fixed to a horizontal shaft 13 mounted on the front and rear walls of the reducer 8, and a small gear 14 that meshes with the rack 5 mentioned above is attached to the front protrusion of the worm wheel 12 on the horizontal shaft 13.
It is fixed integrally with. 15 is easy 5 with cover
It is detachably attached to the speed reducer 8 with cut-out portions 16 formed on both sides through which it passes.

The elbow-arm mechanism, which is a Y-shaped arm, to which this invention is applied consists of an arm rod 17 and a branch rod 18, and the ratio of the lengths of the two is, in principle, 1:2. And armrest 17 is window W
The branch rod 18 is pivotally connected to the edge and the rod 4, respectively, and the arm rod 17
and the upper surface of the pedestal 1 mentioned above, respectively.
Using the pivot point at the end of the branch rod 18 of the frame 1 as a fixed point, move the branch rod 1
8 causes an arcuate movement, while the arm rod 17 is guided by the branch rod 18 and reduces the opening angle α when closing the window.
Instead of the pivoting part on the rod 4 side at the end moving to a close distance to a fixed point, the end on the opposite side is displaced to a state where the edge of the window W protrudes, leading to the full opening. 1
Reference numeral 9 denotes an operation box which is manually operated and connected to both ends 11 of the vertical shaft 9 of the caterpillar reducer 8 via the vertical shaft 21;
This is a starting member that rotates the vertical shaft 9 using an external force (manually). Reference numeral 20 is an electric motor that is specially installed when the operation box 19 is cumbersome, and is directly connected to both ends 11 of the vertical shaft 9 of the caterpillar reducer 8 using a universal joint, but whether it is electric or manual. is delivered at the request of the demand group, and only one of the activation members is provided.

(Effects of the invention) According to this invention, an opening/closing device that can smoothly open and close against large loads of own weight and wind pressure, such as large multiple windows, is too expensive to use with an expensive stain damper. Because the operation of retracting the piston shaft and closing the window requires a great deal of effort, the current state of the art is to rely on a known elbow-arm mechanism using a Y-shaped arm. This device has succeeded in completely avoiding damage to the surrounding area, scattering of glass, and other dangers caused by the biasing impact that would occur if it breaks or comes off, and has additional safety functions not found in conventional devices of this type. The unit can be easily installed on existing large multiple windows, providing reliable operability and safety that are extremely unlikely to break down due to its simple structure, as well as labor-saving effects. .

[Brief explanation of drawings]

Figure 1 is a schematic perspective view of the opening/closing device of this invention installed in multiple large windows, and Figure 2 is the A-
The A-view plan view and FIG. 3 are explanatory diagrams of the operating state of the Y-shaped rod. In the figure, 1 is a frame, 2 is a pulley, 3 and 4
is a rod, 5 is a rack, 6 is a chain strip, 7 is a chain wheel, 8 is a caterpillar speed reducer, 12 is a worm wheel, 14 is a small gear, 17 is an arm lever, 18 is a branch lever, W is a window, and F is a It is a window opening frame. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A rod in the parallel part of a chainless rail body that slides on a pulley of a frame installed vertically at the middle lower side of each window opening frame, and whose both ends are connected with a chain strip and meshes with the chain wheel. The middle part of the side is easily ground and meshed with a small gear on the same axis as the worm wheel in another caterpillar reducer that is rotated by an external force such as manual or electric power, and one side is attached to the top surface of the mount. A multi-window opening/closing device with a maintenance function, characterized in that the other side of the pivoted branch rod is pivoted to the middle part of the arm rod which is pivoted to the window edge on one side and the upper surface of the rod body on the other side.