JPH0645029Y2 - Casement attracting device - Google Patents

Description

[Detailed Description of the Invention] [Purpose of Invention] [Industrial Application Field] The present invention is directed to an outer window or an inner window having a rotary pivot between a vertical frame and a vertical frame, a horizontal frame and a horizontal frame. The present invention relates to a pulling device provided in an opening / closing device for an opening window such as a one-sided window having a rotation pivot portion between and.

"Prior Art" Conventionally, as a device for opening / closing a window, U.S. Pat. No. 2,767,979.
There is a switchgear disclosed in the specification. This is shown in FIGS. 7 to 10.

In the figure, a handle 3 is pivotally supported on an operation portion main body 2 fixed to a lower frame 1a of an opening frame 1, and a worm 5 is provided on a shaft 4 of the handle 3. The operation unit body 2
A pair of arms 7, 7 having gears 6, 6 meshing with each other at their roots are pivotally mounted therein, and the worm 5 meshes with one of the gears 6, 6.

A shoji 9 is attached to the vertical frame 1b of the opening frame 1 via an arm 8.

The opening / closing of the shoji 9 is supported by the arms 7, 7 having rollers 11, 11 at the tip end thereof which engage with guide grooves 10a of a rail 10 fixed to a lower frame 9a of the shoji 9.

When the handle 3 is rotated, the worm 5 rotates the gear 6 that meshes with the worm 5. By the rotation of the gear 6,
The other gear 6 meshing with the gear 6 is rotated, and the gears 6 and 6 rotate in mutually opposite directions. By the rotation of the gears 6 and 6, the arms 7 and 7 integrated with the gears 6 and 6 rotate in mutually opposite directions while engaging the rollers 11 and 11 at the tips with the guide grooves 10a of the rail 10, The lower end of the shoji screen 9 is rotated outward to open the shoji screen 9.

When the shoji 9 is closed, the shoji 9 is housed in the opening frame 1 and closed by performing the reverse operation.

"Problems to be solved by the invention" In the above-mentioned open window, the lower frame 9a of the shoji 9 and the lower frame 1a of the opening frame 1 are strongly attracted by the rotation of the arms 7 and 7 when they are closed, so that they are tight. However, since the shoji 9 and the upper part of the opening frame 1 are attracted only by the arm 8, when the load on the outdoor side is applied to the shoji, the upper frame of the shoji 9 and the upper frame of the opening frame 1 are closed. There is a problem that there is a gap between them.

Such a problem is not limited to the above-mentioned outside opening window, and is also applicable to the inside opening window using this opening / closing device, the one-sided opening window having the rotation pivotal support portion between the horizontal frame of the opening frame and the horizontal frame of the shoji. is there.

As a means for solving such a problem, a pulling tool manually operated may be separately provided, but it is troublesome because the pulling tool has to be operated each time the shoji is opened and closed.

The present invention has been made to solve the above-mentioned problems of the conventional opening window.When the opening shoji is closed, the drawing is automatically performed as the shoji is closed, and the drawing is automatically released as the shoji is opened. The present invention aims to provide a pulling device.

[Constitution of device]

[Means for Solving Problems] According to the present invention, the above-mentioned object is a guide provided along a longitudinal direction of a lower frame of an opening shoji and an opening frame for accommodating the opening shoji. An arm having a guide roller that engages with a groove pivotally attached at its tip portion is engaged with a worm of a handle arranged in the operation portion main body fixed to the opening frame side by a gear integrally formed at the base portion thereof, In the case of an opening window configured to support the opening and closing of the opening shoji by rotating the arm while the guide roller is engaged along the guide groove by the rotation operation of the handle, a lock pin is provided on the vertical frame of the opening shoji. Is formed of a pressing arm having a gear at its base and a support arm having a guide roller pivotally mounted at its tip, and is engaged with and supported by the guide groove of the lower frame. Pivoted to the arm A spring force is constantly applied to the guide roller in the closing direction of the shoji, and a bell crank, which is pressed by a pressing arm when closing the shoji, stands on the lower frame on the upper surface of the lower frame of the opening frame. A latch which is rotatably pivoted around the pin shaft by a spring force being applied to the pin shaft provided in the opening direction of the shoji and which has a pulling cam portion on the vertical frame of the opening frame. Is removably supported by the receiving metal, and the bell crank and the latch are both a connecting rod arranged along the lower frame of the opening frame and a connecting rod arranged along the vertical frame of the opening frame. This is achieved by a pulling device for an opening window that is connected by a flexible belt-like member that connects the connecting rods.

"Action" (When closing the shoji from the open state) Rotate the handle to rotate the shoji to the closed position.
When the handle is further rotated in the closed position, the arm composed of the pressing arm and the supporting arm rotates only in the closing direction of the shoji screen against the spring force biased by the guide roller. By the rotation of the pressing arm, the pressing arm presses one end of a bell crank mounted on the lower frame of the opening frame, and the bell crank is rotated around the pin axis against the spring force biased by the bell crank. Rotate. The rotating force of the bell crank is transmitted to a latch made of a lock fitting having a pulling cam portion via a connecting means connected to the bell crank, and the pulling cam portion of the latch is engaged with the receiving member to prevent the shoji. Pull it into the opening frame.

(When opening the shoji from the closed state) By rotating the handle in the opposite direction to the above, the pressing arm rotates in the opening direction, and the pressing arm and the support arm integrally rotate the shoji to the opening side. At the same time, the contact between the pressing arm and the bell crank is released, and the bell crank rotates about the pin axis by the spring force biased by the bell crank. The rotating force of the bell crank is transmitted to a latch made of a lock fitting having a pulling cam portion via a connecting means connected to the bell crank, and the latch is pulled upward by the spring force of the open return spring and received. The engagement with the gold is released and the shoji is released.

[Embodiment] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings showing an embodiment thereof. In this embodiment, the pulling device of the present invention is applied to a single-opening window having a rotary pivot portion between the horizontal frame of the opening shoji and the horizontal frame of the opening frame. FIG. 1 is a longitudinal section of the single-opening window. 2 and FIG. 2 are plan views taken along the line AA of FIG. 1, and FIG. 4 is an assembled perspective view of the drawing device.

In the figure, 12 is a guide roller guide fitting attached to the inside of the bottom of a lower frame 13a of a single-sided shoji (hereinafter simply referred to as "shoji") 13 over its entire length in the longitudinal direction. A guide groove 12a is provided in the.

Reference numeral 14 denotes an arm, and the arm 14 is composed of a pressing arm 14a having a gear 15 at its base and a support arm 14b having a guide arm 17 pivotally mounted on the upper surface of the tip thereof, and the support arm 14b is provided at the pressing arm 14a. The roller 1 is superposed on the upper surface of
At the end opposite to the side where 7 is pivoted, the pressing arm 1
It is pivotally supported by a pin shaft 16 fixed to the middle portion of 4a.

Reference numeral 18 denotes a tension spring. One end of the tension spring 18 is attached to one side surface of the support arm 14b that is superposed on the upper surface of the pressing arm 14a, and the other end of the tension spring 18 is attached to one end of the spring. Is attached to the side surface of the pressing arm 14a located on the side opposite to the side surface of the support arm 14b, and the spring force of the tension spring 18 causes the guide roller 17 pivotally attached to the support arm 14b to always move in the closing direction of the shoji. I am biased.

A guide roller 17 pivotally mounted on the upper surface of the tip of the support arm 14b is engaged with a guide groove 12a on the lower surface of the guide fitting 12 and a pressing arm 1 that pivotally supports the support arm 14b on the upper surface.
A root portion of 4a is pivotally attached to a shaft 21 in an operation portion main body 20 fixed to a lower frame 19a of the opening frame 19.

The pressing arm 14a has a worm 24 provided in a shaft 23 of a handle 22 pivotally supported in the main body 20 with a gear 15 integrally formed at the root of the operating arm main body 20.
Is meshed with.

Reference numeral 25 is a base fixed to the upper surface of the lower frame 19a of the opening frame 19, and a pin shaft 26 is erected on the base 25, and a bell crank 27 is rotatable around the pin shaft 26. Is pivotally attached to.

A contact pin 28 is provided upright on one end of the bell crank 27, and a long hole 27a elongated in the tip direction is formed at the other end.

When the shoji 13 is closed on the contact pin 28 erected on the bell crank 27, the side surface of the pressing arm 14a abuts and is pressed by the pressing arm 14a so that the pin 28 is fixed and the bell crank 27 is pinned. It is configured to rotate about axis 26.

In the long hole 27a of the bell crank 27, a pin 29a which is one end of a connecting means for connecting the bell crank 27 and a later-described latch is movably fitted in the long hole 27a. The pin 29a is fixed to a connecting rod 29 arranged along the longitudinal direction of the lower frame 19a of the opening frame 19. The connecting rod 29 is rigidly connected to one end of the flexible belt-shaped member 30 via a connecting tool 30a.

The strip-shaped member 30 is formed of, for example, a steel strip or a synthetic resin.

Reference numeral 31 is a corner guide 31 provided with a groove 31a on the outer peripheral side, the corner guide 31 includes an arc corresponding to a quadrant, and both ends have horizontal and vertical portions. The corner guide 31 has a lower frame 19
It is fixed by abutting on the concave surface portion 32a including the quadrant of the corner fitting 32 fixed on the inner corners of a and the vertical frame 19b.

The strip-shaped member 30 is movably fitted in the groove 31a configured as described above, and the other end of the strip-shaped member 30 is attached to the vertical frame 19b.
Along the vertical frame 19b, and is rigidly coupled to the lower end of the coupling rod 33 arranged along the vertical frame 19b via the coupling tool 30b.

The joints 30a and 30b are the lower frame 19 attached to the corner attachment 32.
It is configured to be slidably guided by guides 34 and 35 which are parallel to the longitudinal direction of the vertical frame 19b.

A hole is provided at the upper end of the connecting rod 33, and the hole is fitted to a pin 38a fixed to a mounting piece 38 extending downward from the lower end of a lock fitting 37 as a latch of a latch device 36.

An open return spring composed of a tension spring is provided at the upper end of the lock fitting 37.
One end of 39 is locked, and a pulling cam portion 37a is formed at the lower end of the lock fitting 37.

The lock fitting 37 is slidably fitted to a case 40 in which a lip facing outward is provided on a side surface of a flange 40b having a groove-shaped cross section, and a tip of the pulling cam portion 37a is provided at a lower end of the flange 40b of the case 40. A stopper portion 37b capable of contacting is formed.

The lip of the case 40 serves as a mounting portion 40a, and the case 40 is fixed to the inner circumference of the rigid frame 19b at the mounting portion 40a by a machine screw 40c.

Therefore, the lock fitting 37 slides in the guide hole surrounded by the case 40 and the inner circumference of the vertical frame 19b.

A spring hook 41 is formed on the upper end of the case 40, and the upper end of the opening return spring 39 is locked to the spring hook 41.

A lock pin 42 as a receiving member is fixed at a position of the vertical frame 13b of the shoji 13 corresponding to the lock fitting 37, and the pulling cam portion 37a of the lock fitting 37 is engaged with the lock pin 42. .

The bell crank 27 and the connecting members 30a and 30b that are connected to each other may apply the spring force to the bell crank 27 described above.
The resistance during movement may be reduced.

At the closed position of the shoji screen 13, a rubber seal 43 is attached to the peripheral edge portion of the opening frame 19 that contacts the shoji screen 13.

Next, the operation of the pulling device having the above-described structure will be described.

When the shoji screen 13 is open, the lock fitting 37 is an open return spring.
It is pulled up by the spring force of 39, and the lock fitting 37
Similarly, the connecting rod 33 connected to the connecting rod 33 is also pulled up by the spring and is in a raised position, and the connecting rod 29 connected to the connecting rod 33 via the belt-shaped member 30 is also connected along the lower frame 19a. 3
It is in the position moved to side 3.

A pin fixed to the connecting rod 29 by the movement of the connecting rod 29.
The bell crank 27, which is connected to the slot 29a with the slot 29a, is in a position rotated clockwise about the pin shaft 26 in FIG. These movement limit positions are determined by the stopper portion 37b of the lock fitting 37 contacting the lower end of the case 40.

In the above positional relationship, by rotating the handle 22 pivotally supported by the operation portion main body 20 fixed to the lower frame 19a of the opening frame 19 in the closing direction, the worm 24 provided on the shaft 23 of the handle 22 rotates. Then, the pressing arm 14a provided with the gear 15 at the base portion for meshing with the worm 24 rotates, and the support arm 14b superposed on the upper surface of the pressing arm 14a pulls the tension spring 18 as the arm 14a rotates. The force causes the pressing arm 14a to rotate together.

The support arm 14b is provided with a guide roller 17 at the tip end thereof which is attached to the lower frame 13a of the shoji 13 and is guided by the guide groove 1 of the guide roller guide fitting 12.
Rotating while engaging with 2a, the shoji 13 is rotated in the closing direction.

In the closed position of the shoji screen 13, the pressing arm 14a is attached to the lower frame 19a.
Bell crank pivotally attached to the upper base 25 by a pin shaft 26
It comes into contact with a contact pin 28 provided upright at one end of 27.

In this state, by further rotating the handle 22 in the closing direction, the pressing arm 14a resists the tensile force of the tension spring 18 and removes the overlapping with the supporting arm 14b, and only the pressing arm 14a further rotates, and the bell crank The bell crank 27 is rotated counterclockwise around the pin shaft 26 in FIG. 2 by strengthening the contact force with the contact pin 28 erected on the stand 27.

By the rotation of the bell crank 27, the long hole 27 of the bell crank
The pin 29a fixed to the connecting rod 29 which engages with a is moved to move the connecting rod 29 leftward in FIG.
The belt-shaped member 30 is pulled via the connecting tool 30a guided in the horizontal direction.

The strip-shaped member 30 moves in the groove 31a of the corner guide 31, and the upper end of the strip-shaped member 30 is vertically guided by the guide 35.
The lower end of the connecting rod 33 is pulled downward via the connecting rod 33 to move the connecting rod 33 downward, and the lock fitting 37 connected by the pin 38a is moved downward against the pulling force of the opening return spring 39. The lock fitting 37 locks the pulling cam part 37a with the lock pin 42
The lock pin 42 is pulled toward the inside by engaging from the outer peripheral side of the peripheral portion. As a result, the shoji 13 is attracted.

When the shoji 13 is released from the closed state, the handle 22 is rotated in the opposite direction to the above.

That is, the rotation of the handle 22 causes the pressing arm 14a to rotate in a direction in which the pressing arm 14a and the supporting arm 14b are integrally overlapped with each other, and at the same time, the pressing arm 14a and the pin 2 of the bell crank 27.
The contact with 8 is released. When the contact between the pressing arm 14a and the pin 28 of the bell crank 27 is released, the open return spring 39 pulls up the lock fitting 37 and the connecting rod 33 by its spring force, and the band-shaped member via the connecting tool 30b. 30 is a connecting rod 33
The strip member 30 is pulled by and moves in the groove 31a of the corner guide 31, and the strip member 30 pulls the connecting rod 29 via the connecting tool 30a. The pin 29a fixed to the connecting rod 29 moves with respect to the long hole 27a of the bell crank to rotate the bell crank 27 around the pin shaft 26 in the clockwise direction in FIG. 2, and the contact pin 28 is attached to the pressing arm 14a. Follow for a while, then the contact pin 28 is the lock fitting 37
The stopper portion 37b provided at the upper end of the case 40 separates from the pressing arm 14a at the rotation limit position in the clockwise direction of the bell crank 27 which is determined by contacting the lower end of the case 40. By such continuous movement from the connecting rod 33 to the bell crank 27,
When the connecting rod 33 is pulled up by the spring force of the open return spring 39, the lock fitting 3 connected to the connecting rod 33 via the pin 38a.
7 is pulled up, and the pulling cam portion 37a of the lock fitting 37
And the lock pin 42 fixed to the shoji vertical frame 13b are disengaged, and the drawn state of the shoji 13 is released.

FIG. 6 is a plan view showing another embodiment of the arm of the present invention.

In the figure, the arm 44 cuts the middle part of the arm 44,
A mounting piece 45a provided on the rear end of the side portion of the supporting arm 45 serving as a cutting piece is pivotally attached by a pin 47 to a mounting piece 46a provided on the side end of the pressing arm 46 serving as the piece to be cut of the arm 44. Then
The arm 44 is a retractable type. The support arm 45
The other end of a tension spring 48, one end of which is attached to the pressing arm 46, is attached along the longitudinal direction of the arm 44, and the support arm 45 and the pressing arm 46 include the spring 48.
Thus, the spring force is urged in the direction in which the support arm 45 and the pressing arm 46 approach each other.

Next, the operation of this embodiment will be described. Note that, except for the arm, the same operation is shown, and therefore only the operation of the arm will be described here.

When the handle 22 is rotated in the closing direction of the shoji 13 in the open position of the shoji 13, the pressing arm 46 is rotated, and the support arm 45 is driven by the pulling force of the tension spring 48 in accordance with the rotation of the pressing arm 46. Rotate with arm 46. By the rotation of the support arm 45, the shoji 13 rotates in the closing direction.

In the closed position, the pressing arm 46 contacts the contact pin 28 erected on the bell crank 27, and in this state, by further rotating the handle 22 in the closing direction, the pressing arm 46 and the support arm 45 pull the tension spring 48. Bending about the pin 47 against the force, only the pressing arm 46 rotates further in the closing direction. By the rotation of the pressing arm 46, the pressing arm 46 strengthens the contact force of the bell crank 27 with the contact pin 28 to rotate the bell crank 27 counterclockwise around the pin shaft 26 in FIG. The rotation of 27 draws the shoji.

When the shoji 13 is released from the closed state, the handle 22 is rotated in the opposite direction to the above, and the rotation causes the pressing arm 46 to rotate.
Rotate in the direction in which they are integrated with the support arm 45. The rotation of the pressing arm 46 causes the pressing arm 46 and the bell crank 27 to rotate.
The contact with the contact pin 28 standing upright is released, the bell crank 27 rotates, and the pulling is released.

A contact pin erected on the pressing arm 46 and the bell crank 27
When the contact with 28 is released, the pressing arm 46 comes into contact with the support arm 45 at almost the same time to be integrated, and the shoji 13 is opened.

The present invention is not limited to the above-described embodiments, and for example, a control cable or the like can be used as the connecting means.

[Effect of device]

Since the pulling device of the present invention is pulled and released in conjunction with the opening / closing operation of the shoji opening / closing device, it is possible to remove the complexity of the operation without requiring a separate pulling device by manual operation.

Further, since the shoji screen is tightly housed in the opening frame by the pulling device, no gap is created between the shoji screen and the opening frame even if a load is applied to the opening side of the shoji screen in the closed state.

At first, the pulling is performed at the position of the lower frame of the opening frame, and after this pulling is completed, the pulling force is dispersed at the upper part of the opening frame, so that the pulling force is dispersed and the pulling is performed uniformly without any difficulty in the operation.

By the connecting means, the pulling tool for the latch and the receiving tool and the bell crank are separated from each other, so that the driving side can be attached to the pulling tool at an appropriate position.

Since the guide roller is attached to the tip of the arm so that it can move in the opening and closing direction of the window, smooth pulling can be performed even if the mounting position of the arm and bell crank is slightly misaligned, and the position of the bell crank and arm can be adjusted during mounting. Is unnecessary.

[Brief description of drawings]

1 is a side view of an embodiment of the present invention, FIG. 2 is a plan view taken along the line AA of FIG. 1, FIG. 3 is a partial front view of FIG.
FIG. 5 is an assembled perspective view, FIG. 5 is an enlarged perspective view of an arm in the first embodiment of the present invention, FIG. 6 is a plan view showing another embodiment of the present invention, and FIG. 7 is a perspective view of a conventional example. FIG. 8 is a plan view of the opening / closing device of FIG. 7, FIG. 9 is a partial perspective view of the lower frame of FIG. 7, and FIG. 10 is a plan view for explaining the lower frame of the shoji of FIG. is there. 12 ... Guide roller guide fitting, 12a ... Guide groove 13 ... Shoji, 14,44,49 ... Arm 14a, 46 ... Pressing arm 14b, 45 ... Support arm, 17 ... Guide roller 18, 48, 51 ... Tension spring, 19 ... Opening frame 22 ... Main body of operation unit, 27 ... Bell crank 37 ... Lock fitting (latch), 39 ... Open return spring 42 ... Lock pin (receiver)

Claims (1)

[Scope of utility model registration request] 1. A guide roller comprising an opening shoji and an opening frame for accommodating the opening shoji, and a guide roller engaging with a guide groove provided along a longitudinal direction of a lower frame of the opening shoji is pivotally attached to a tip end portion thereof. An arm meshes a gear integrally formed at the base of the arm with a worm of a handle arranged in a main body of an operation portion fixed to the opening frame side, and the arm rotates a guide roller to guide a guide roller along a guide groove. In an opening window configured to support the opening and closing of the opening shoji by rotating while engaging with each other, a receiving member composed of a lock pin is fixed to the vertical frame of the opening shoji, and the arm has its root. A pressing arm having a gear at its end and a support arm having a guide roller pivotally mounted at its tip, engaged with the guide groove of the lower frame, and the guide roller pivotally mounted on the support arm closes the shoji. Always in the direction A bell crank, which is pressed by a pressing arm when the shoji is closed, is attached to the upper surface of the lower frame of the opening frame by a pin shaft erected on the lower frame in the opening direction of the shoji. The pin is rotatably pivoted around the pin shaft by applying a force, and a latch made of a lock fitting having a pulling cam portion is removably supported by the vertical frame of the opening frame. , The bell crank and the latch are connected by a connecting rod arranged along the lower frame of the opening frame, a connecting rod arranged along the vertical frame of the opening frame, and a flexible belt-like member for connecting both connecting rods. A device for pulling a window that is characterized by being provided.