JPS5817111Y2 - casement window opening/closing device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an opening/closing device for a casement window of a greenhouse, that is, a casement window that rotates (rotates) to open and close around a hinge joint on one side edge of a window frame.

As a prior art, for example, the opening/closing device for a push-opening window described in Japanese Patent Publication No. 50-2537 connects the crankshaft with a portion of the window frame of the push-opening window that is inward in the radial direction of rotation, and The structure is such that the shaft is rotated by an electric motor or the like to open and close, and has the following drawbacks.

First, the structure opens and closes depending on the rotational force of the crankshaft, so we cannot expect power efficiency or boosting effects, so even if it is practical for opening and closing window frames of limited size, Considering the limits of electric motor output, it is almost impractical to open and close large-scale ventilation windows that are several tens of meters long.

Second, if we were to make the crankshaft, which bears all the great resistance when opening and closing the window, to be as long as several tens of meters, we would have to carefully consider its material and shaft diameter and design it to be strong. A large twist occurs during rotation, making it impossible to open and close long ventilation windows all at once and evenly, making it impractical.

Therefore, the purpose of this invention was to create a large-scale push-opening window with a length of several tens of meters in the direction of the axis of rotation of the hinge joint of the window frame, all at once with a relatively small force.
Further, it is an object of the present invention to provide an opening/closing device for a push-opening window, which can be opened/closed evenly to a desired degree of opening, has a simple structure, and is easy to operate.

The ultimate purpose of this invention is to attach a push rod of a required length to a part of the window frame of a push-opening window on the outside in the radial direction of its rotation so as to protrude in the tangential direction of said rotation; A lever-type crank lever is hinged to the push rod, and its central portion is rotatably attached to the fixed frame in a direction substantially orthogonal to the rotating direction of the window frame. A connecting member of a required length and reciprocatingly movable in the axial direction in parallel, with the other end of the crank lever connected by a hinge, and a screw, for example, for reciprocating the connecting member in the axial direction. It is an object of the present invention to provide an opening/closing device for a casement window, which is constituted by a movement mechanism, a fluid pressure cylinder, a jack, or other means.

Due to the structure of this invention, a large number of push rods are attached at desired intervals in the direction of the axis of rotation at the hinge connection portion of the window frame.

Therefore, a large number of crank levers are installed at similar intervals, and one end of each is connected to a common connecting member.

Therefore, the reciprocating movement of the connecting member is transmitted through the crank lever and the push rod as a common reciprocating movement in the opening and closing direction of the push-opening window, and the push-opening window can be opened and closed uniformly over its entire length.

Next, this invention will be explained with reference to illustrated embodiments.

FIG. 1 shows the main frame structure of a casement window for a greenhouse to which the opening/closing device of this invention is applied.

In the figure, 1 refers to the entire window frame of the push-opening window.

This window frame 1 has two horizontal bars 2 and 3 of a required length made of a sheet stopper frame with fins arranged in parallel at a required interval, and a desired distance between the fins of the horizontal bars 2.3. A number of longitudinal bars consisting of a sheet stopper frame at a pitch 4.4...
The horizontal bars 6 for fixing, which are also cut out from the sheet fastener frame, are arranged in parallel adjacent to the horizontal bars 2 on one side, and the horizontal bars for fixing are 6 and the horizontal crosspiece 2 are hingedly connected by a hinge 5.

This window frame 1 is installed so that it can be opened and closed for a long time in the direction of the ridge of the roof surface by fixing the fixing horizontal beam 6 on the gassho members 7 and 8, 8, which are the building framework of the greenhouse. Ru.

The window frame 1 opens and closes by rotating around the hinge 5.
It is pushed open by pushing outward from the roof surface.

2 and 3 supplement FIG. 1 and show the main parts of the opening/closing device which is an embodiment of this invention.

In the figure, reference numeral 9 denotes a push rod, which is applied to a portion of the window frame 1 on the outside in the radial direction of the rotation around the hinge 5, that is, on the vertical bar 4, with a required length inward in the tangential direction of the rotation. They are protruding and fixed in large numbers in the longitudinal direction of the window frame 1 (direction of the axis of rotation of the hinge 50) at intervals of, for example, about 1.5 m.

In the illustrated example, the push rods 9... are attached to every second vertical bar 4.

In the figure, reference numeral 10 denotes a large sheet stopper frame which is a fixed frame fixedly attached to the gassho member T and 8, 8, . . . (FIG. 1).

This is fixed at a position almost directly below the horizontal bar 3 in the window frame 1, and serves as a lower window beam that supports the horizontal bar 3 of the window frame 1 when the window frame 1 is closed. be.

In the figure, reference numeral 11 indicates an arrangement corresponding to each of the push rods 9 on one side of the large sheet stopper frame 10, which is the fixed frame, and approximately in the direction of rotation of the window frame 10 about the hinge 5. It is a plate-like, dogleg-shaped crank lever that is mounted so that it rotates in orthogonal directions.

The crank lever 11 is rotatably attached to the large seat stopper frame 10 by a pin 12 at its center.

One end of the crank lever 11 is hingedly connected to the lower end of the push rod 9 by a pin 13.

In order to cope with the lateral displacement component of the pin 13 due to the rotation of the crank lever 11, the pin hole of the push rod 9 is formed into a long hole 9a that is long in the lateral direction.

(FIGS. 2 and 3) Reference numeral 14 in the figures indicates a high-rigidity connecting pipe which is a connecting member.

This is a member having a length extending at least the entire length of the window frame 1 in the direction of the greenhouse, and is installed parallel to the axis of rotation of the hinge 50 that connects the window frame 1 with a hinge.

All of the above crank levers 11 are attached to this connecting pipe 14.
... are hingedly connected by a pin 15, and the whole constitutes a so-called parallel link.

The connecting pipe 14 is supported by brackets, slide bearings, etc. (not shown) fixed to the greenhouse building frame so that it can linearly reciprocate only in its axial direction and does not rotate.

In order to smoothly link the linear movement of the pin 15 with the reciprocating movement of the connecting pipe 14 and the rotational movement of the crank lever 11, the pin hole of the crank lever 11 is formed into a long hole that is long in the longitudinal direction of the crank lever 11. 16 (FIGS. 2 and 3).

A threaded feed rod 18 of a desired length is attached to one end of the connecting pipe 14 in the axial direction as a means for reciprocating the connecting pipe 14 with a required stroke in the axial direction, and is fixed integrally with a split pin 19. At the same time, a chain wheel 20 having a female thread having a common specification with the screw thread of the screw feed rod 18 is screwed into the screw feed rod 18 into a central boss hole.

The chain wheel 20 has a bearing block 21 which is rotatably fitted into the boss portion of the chain wheel 20 and is connected to a support frame 23 23 which is fixed to a beam 22 of the greenhouse building and is arranged parallel to the screw feed rod 18 . 20 is supported via a bearing block 21 so that it can only rotate freely and never move in the axial direction of the screw feed rod 18.

Further, the lower end of the stay 24 suspended from the large seat stopper frame 10, which is a fixed frame, is also connected to a bearing block 21, so that the chain wheel 20 is supported in the vertical direction.

An endless hand chain 25 is wound around the groove of the chain wheel 20 to a length sufficient to reach the worker on the ground.

Therefore, when the hand chain 25 is pulled in either direction, the chain wheel 20
can be rotated in the same direction, and as the chain wheel 20 rotates, the connecting pipe 14 is rotated as required in the axial direction by the screw movement of the female thread cut in the boss hole of the boss part and the screw feed rod 18. The window frame 1 is pushed open or closed with an opening degree proportional to the reciprocating movement of the connecting pipe 14.

Note that the means for linearly reciprocating the connecting pipe 14 is not limited to the screw movement mechanism of the screw feed rod 18 and chain wheel 20 described above.

For example, as shown in FIG. 4, a piston rod 26a of a fluid pressure cylinder (jack) 26 fixed to a beam 22 is arranged on a common center line with the connecting pipe 14 and connected to one end thereof, and connected by the fluid pressure cylinder 26. pipe 1
A similar effect can be obtained by a configuration in which 4 is moved back and forth.

Alternatively, similar effects can be obtained by replacing the fluid pressure cylinder 26 with a manual or electric screw type jack, claw type jack, or the like.

Note that this opening/closing device can be used either in a manner in which the window is opened by pushing the connecting pipe 14 or in a manner in which the window is opened by pulling it.

In the case of the latter mode of use, the connecting member is not limited to one with axial compressive stress like the connecting pipe 14, but it is also possible to use a flexible but high tensile strength wire or the like.

As explained above, this invention includes a push rod attached to a ridge of a window frame of a push-opening window on the outer side in the radial direction of the rotation so as to protrude in the tangential direction of the rotation, and one end of the push rod. is connected to the push rod by a hinge, and the crank lever is attached to the fixed frame at its substantially central portion so as to be freely rotatable in a direction substantially perpendicular to the rotating direction of the window frame, and a connecting member which is installed to be able to reciprocate in the axial direction thereof, and to which the other end of the crank lever is hingedly connected; and a screw movement mechanism or a fluid pressure cylinder which reciprocates the connecting member in the axial direction. Since the present invention is directed to an opening/closing device for a push-opening window constructed by means such as a jack or a jack, the following effects are achieved.

■ The push rod is attached to the outer part of the window frame in the radial direction of rotation, and is opened and closed through a lever-type crank lever connected to it, so the so-called boosting effect based on the lever principle reduces the amount of force required to open and close the window. It is possible to greatly improve the efficiency of force (force to move the connecting rod), and in other words, a long, large-scale push-opening window can be opened and closed easily with a relatively small input, which is advantageous for opening and closing operations.

■ Therefore, by attaching the push rod and crank lever at a predetermined pitch in the longitudinal direction of the window frame, and by making the length of the connecting member appropriate, the push rod and crank lever can be extended in the direction of the axis of rotation of the hinge connection. Regardless of the size of the casement window (length), the entire window can be opened and closed at the same time and evenly to the desired degree of opening. Particularly suitable as a greenhouse skylight, ventilation window opener, which is constructed in a narrow (long) manner.

- As mentioned above, as a result of improving the efficiency of the force required to open and close the window, no excessive force is applied to the mechanical movement and structure of the opening/closing device, making it possible to design and manufacture it economically.

■ Since the window is opened and closed by means of reciprocating the connecting member, the entire window can be opened and closed at once and evenly compared to the case by rotating the shaft, which is extremely advantageous in terms of mechanics and is economical. We can design and manufacture.

■ The configuration is extremely simple, and it has a compact configuration that can be installed in a small greenhouse without occupying much space, so it is naturally inexpensive.
It can be economically and easily implemented as an opening/closing device for a casement window (ventilation window) in a greenhouse.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the external appearance of the frame structure of a greenhouse to which the opening/closing device of this invention is applied, and Figures 2 and 3 are a perspective view and a front view showing the detailed structure of the opening/closing device of this invention. , FIG. 4 is a front view showing a different embodiment of the opening/closing device. 1... Window frame of push-opening window, 9... Push rod, 10... Large seat stopper frame (fixed frame), 11... Crank Lever, 12.13・
・Pin, 14...Connecting pipe (connecting member),
15...pin, 18...screw feed rod,
20...Chain wheel, chain, 26...Fluid pressure cylinder. 25...--hand

Claims (1)

[Claims for Utility Model Registration] (a) A push rod attached to a portion of the window frame of a push-opening window that is radially outward in the rotational direction so as to protrude in the tangential direction of the rotation; (b) One end portion a crank lever which is hinge-connected to the push rod and whose substantially central portion is rotatably attached to the fixed frame in a direction substantially orthogonal to the rotational direction of the window frame; a connecting member having a required length and installed so as to be reciprocally movable in the axial direction, and having the other end of the crank lever connected by a hinge; and (2) a screw movement mechanism for reciprocating the connecting member in the axial direction. Or a device for opening/closing a casement window, which is composed of means such as a fluid pressure cylinder or a jack.