JP2003221967A - Window open-close device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a window open-close device capable of freely changing the degree of the window opening of a movable fitting section by the change of wind pressure such as the strength of a wind by an air-shot mechanism for a small number of parts. <P>SOLUTION: In the window open-close device composed of the rocking open- close type movable fitting section, an operating means, a link mechanism 4 operated by the operating means and the air-shot mechanism 7 permitting the free movement of the movable fitting section, the operating means consists of a wire 31 arranged to the link mechanism 4 and a winding mechanism for the wire 31. In the window open-close device, the link mechanism 4 is composed of a lever 5 moved by the wire 31 and a return spring 53, a rotating arm 62 rotated by an urging by the lever 5 and a twisting arm 64 connecting both the rotating arm 62 and a bracket 23 for the movable fitting section through ball joints 63 and 65. In the window open-close device, the air-shot mechanism 7 consists of a play opening 71 formed between the lever 5 and the rotating arm 62. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window opening / closing device in which an oscillating opening / closing type sliding door or a sliding type sliding door can freely move within a certain range by wind pressure.

[0002]

2. Description of the Related Art A ventilation window has a sliding door of an oscillating opening / closing type or a sliding type, and a link mechanism having a wire arranged between the window frame and the sliding door is installed on a wall or the like. It is opened and closed by remote control of the winding mechanism. Therefore, it is difficult to freely move the shoji that has stopped at an arbitrary fenestration position (regardless of the operating means). This patent applicant proposes a window opening / closing device in Patent Document 1 in which a sliding mechanism that allows the shoji screen to be freely displaced within a certain range is attached to enable automatic adjustment of natural ventilation according to the strength of the wind. is doing.

[0003]

[Patent Document 1] Japanese Patent Laid-Open No. 2001-140535

[0004]

DISCLOSURE OF THE INVENTION An object of the present invention is to provide a comfortable ventilation with a swing mechanism having a small number of parts, which can freely change the degree of fenestration of a shoji by changing wind pressure such as wind strength. An object of the present invention is to provide a window opening / closing device that can obtain a quantity at low cost.

[0005]

SUMMARY OF THE INVENTION The present invention is a swing opening / closing type or sliding type shoji, operating means for opening / closing the shoji, and a link mechanism operated by the operating means to open / close the shoji. In a window opening and closing device including a free-swing mechanism allowing free movement of the shoji, the operating means includes a wire routed to the link mechanism and a winding mechanism for the wire, and the link mechanism includes the wire and a return spring. By a biasing member, a turning arm that is biased by the biasing member and turns around a support shaft, and a twisting motion that connects the turning arm and the shoji through a ball joint. It is characterized by comprising an arm, and the idling mechanism is composed of a play gap provided between the biasing member and the rotating arm.

[0006]

According to the present invention, by winding the wire to rotate the rotating arm to open and close the shoji,
A play gap is provided between the rotating arm and the biasing member moved by the wire, and the idle gap constitutes the idle swing mechanism. Therefore, the shoji can freely swing and be displaced within a certain range with a simple structure requiring no special parts. As a result, it is possible to provide a window whose opening is automatically adjusted by wind pressure or the like at an extremely low cost.

In the window opening / closing device according to the second aspect, a rotating lever is used as the biasing member. The use of this lever brings about an advantage that the structure of the biasing member can be simplified and is excellent in practicality. The biasing member may be a reciprocating member that reciprocates due to the tension of the wire and the return spring.

In the window opening / closing device according to the third aspect of the present invention, the play gap of the idling mechanism is constituted by the play gap of the clutch connecting the base of the rotating lever and the base of the rotating arm. With this configuration, the link mechanism can be made compact, and the structural strength in the fully closed state can be increased to cope with strong winds and the like.

In the window opening / closing device according to the fourth aspect of the present invention, the play gap of the idling mechanism is formed by the play gap provided between the action portion of the lever and the action portion of the rotating arm. This structure has the advantage that the structure of the link mechanism is simple and the assembly is easy.

The window opening / closing device according to the fifth aspect is provided with a lock mechanism provided between the shoji screen and the window frame, and a key for turning the lock mechanism on and off while rotating in conjunction with the biasing member. Then, when the biasing member rotates to the position where the shoji screen is fully closed, the key turns on the lock mechanism to fix the shoji screen to the window frame, and when the biasing member rotates to the side that opens the shoji screen, the key locks. The feature is that the mechanism is turned off.

In this structure, the shoji is held by turning on the lock mechanism when fully closed, so that the holding force is high and stable.
In addition, the lock mechanism is automatically turned on when the shoji is fully closed,
Since it turns off automatically when opened, it has excellent operability.

According to a sixth aspect of the present invention, there is provided a window opening / closing device in which a key is a key arm integrally formed with a biasing member, and the lock mechanism is installed on the window frame and has a locking claw at a front end thereof. The latch is composed of a seesaw having an inclined surface on which the key arm slides, and a locked portion which is provided on the shoji and engages with the locking claw. With this configuration, the lock device can be easily formed.

According to a seventh aspect of the present invention, there is provided a window opening / closing device in which the idle swing mechanism comprises a play gap of a key arm provided between a stopper provided on the window frame and a lock mechanism. In this configuration, the key arm and the lock mechanism are effectively used to form the idling mechanism, so that the configuration can be simplified.

[0014]

1 is a block diagram of a window opening / closing device 1 according to the present invention.
The shoji 2 attached to the window frame 10 so as to swing is opened and closed. The window opening / closing device 1 has an operating means 3 for operating the opening / closing of the shoji screen 2, and a link mechanism 4 fixed to the central position of the lower frame member 12 of the window frame 10.

In this embodiment, the shoji 2 has its upper edge 21 rotatably mounted with the upper lateral member 11 of the window frame 10 as a fulcrum, and the lower edge 22 of the shoji 2 projects outward (backside in the drawing). It has a swingable window. The shoji screen 2 may be a swing opening / closing type window in which the lower edge 22 is rotatably attached to the window frame 10, or may be a sliding type window in which the fulcrum of the shoji screen 2 is vertically displaced.

The operating means 3 comprises a wire 31 arranged on the link mechanism 4 and a winding means 32 for the wire 31. The winding means 32 has a handle box 33 installed on the lower right wall of the window frame 10. The handle box 33 is internally provided with a pulley for winding the wire 31 and a ratchet mechanism (not shown) for locking the return rotation of the pulley. A wire winding handle 34 and a ratchet release button 35 are provided on the front surface of the handle box 33.

The link mechanism 4 is attached to the upper surface of the horizontal plate portion 42 of the bracket 41 made of an angle member and fixed to the central position of the lower frame member 12. A support shaft 43 is vertically fixed substantially at the center of the horizontal plate portion 42, and a first pulley 44 is provided on the winding means 32 side (right side in the drawing) in parallel with the support shaft 43.
Is installed. A second pulley 45, a lever 5 as an urging member, and an arm 6 urged by the lever 5 are attached to the support shaft 43 in order from the bottom so as to be rotatable or rotatable.

The lever 5 has a base portion 51 pivotally supported by a support shaft 43, and a third pulley 52 attached to the tip end portion thereof. Third
The pulley 52 is located above the first pulley 44 and the second pulley 45 shown in FIG. A return spring 53 composed of a coil spring is mounted on the side of the tip of the lever 5, and the lever 5 rotates in the counterclockwise direction (arrow direction) shown in FIG.
Is urged by. The wire 31 goes from the lower side of the first pulley 44 in the figure to the upper side of the third pulley 52 in the figure and then moves to the second pulley 45.
Is arranged in the lower side of the figure to have an inverted V shape, and the tip is fixed to a wall or the like (see FIG. 3).

Further, a pair of left and right link mechanisms 4 may be attached to one shoji 2 to improve the stability of swinging and full closing of the shoji 2. Furthermore, the plurality of link mechanisms 4 attached to the plurality of shoji 2 may be operated by one winding means 32. In these cases, the tip end of the wire 31 is routed to the next link mechanism 4, and the tip end thereof is connected to the window frame 1
It is fixed to 0 mag.

The arm 6 has a rotating arm 62 whose base 61 is rotatably attached to the support shaft 43, and a twisting arm 64 connected to the tip of the rotating arm 62 via a ball joint 63. The twisting arm 64 is connected to the bracket 23 of the shoji 2 via a ball joint 65. Both ends of the torsion arm 64 are a ball joint 63 and a ball joint 65.
Since it is connected with, the lower edge 2
The swing of 2 and the swing of the swing arm 62 are interlocked.

The base 51 of the lever 5 and the base 6 of the rotating arm 62
1 and 1 are connected by an annular clutch 70 provided on the joint surface. The clutch 70 is a base portion 51 of the lever 5.
Fan-shaped tooth portions 72, 72 having a central angle of 60 degrees width symmetrically provided on the upper surface of the base and fan-shaped gaps 73, 73 having a central angle 120 degree width provided symmetrically on the lower surface of the base 61 of the rotating arm 62. Consists of. The idling mechanism 7 has play gaps 71, 7 with a central angle of 60 degrees between the fan-shaped gaps 73, 73 and the fan-shaped tooth portions 72, 72.
It is composed of 1.

In the window opening / closing device 1, the wire 31 is wound around the winding means 32 when the shoji 2 is fully closed. As shown in FIG. 3, the tension force of the wire 31 causes the lever 5 to rotate to the rightmost position. Set to the position. The clutch 70 has a fan-shaped tooth portion 7.
The reference numerals 2 and 72 contact the right ends of the fan-shaped gaps 73 and 73 to bias the rotating arm 62 in the right rotation direction. The return spring 53 biases the lever 5 in the counterclockwise direction.

When the ratchet release button 35 is pressed in this state, the lever 5 is rotated counterclockwise by the spring load of the return spring 53, and the wire 31 is pulled out from the handle box 33. This causes the fan-shaped teeth 72, 72 to rotate and
The lever 62 rotates to the open position shown in, and the shoji 2 is released. In the state shown in FIG. 4, the shoji 2 can freely swing due to a change in wind pressure within a range (between the play gaps 71) in which the fan-shaped tooth portions 72, 72 contact both left and right ends of the fan-shaped gaps 73, 73.

The wire winding handle 3 of the winding means 32
When the wire 31 is wound by turning 4, the lever 5 rotates clockwise, returns from the open position shown in FIG. 4 to the fully closed position shown in FIG. 3, and the shoji 2 closes its window. Window opening / closing device 1 as in this embodiment
, The inclination angle of the shoji 2 can be automatically adjusted by wind pressure,
Effective as a ventilation window for maintaining a constant ventilation function.

FIG. 5 shows a second embodiment. In this embodiment, a torsion spring 56 is installed on the base of the support shaft 43, and the second pulley 45 is installed on the side of the first pulley 44. Lever 5
The action pin (action part) 55 is provided in the above, and the play gap 67 between the action pin 55 and the action part 66 of the rotating arm 62 serves as the idling mechanism 7. Also in this configuration, the same operation and effect as described above are obtained.

6 to 9 show a third embodiment. In this embodiment, the lock mechanism 8 is provided between the bracket 41 fixed to the window frame 10 and the bracket 23 fixed to the shoji 2. The lock mechanism 8 is turned on (locked) and turned off (unlocked) by a key arm 57 protruding from the lever 5 which is an urging member. The lock mechanism 8 includes the bracket 4
It consists of a seesaw 80 which is a locking means attached to the upper surface of the horizontal plate portion 42 of No. 1 and a square hole 24 which is a locked portion opened in the bracket 23.

The seesaw 80 includes a generally hoist-shaped house 81 fixed to the upper surface of the horizontal plate portion 42, and a seesaw shaft 82 horizontally supported on the left and right side walls of the house 81 and arranged in parallel with the shoji 2. , Seesaw plate 8 attached to the seesaw shaft 82
3 and 3. The seesaw plate 83 has a locking claw 84 protruding from the upper surface of the tip on the shoji 2 side, and an inclined surface 85 provided at the rear end and on which the key arm 57 slides. House 81
The right side of the wall has a tapered guide portion 86 that opens rearward.
Is formed with a key engaging groove 87.

The key arm 57 is provided with the lever 5 and the third pulley 52 which are separated from each other by about 150 degrees, and has a key engaging groove 87.
And a stopper 58 formed of a pin fixed to the upper surface of the horizontal plate portion 42. The action pin 55 is fixed to the upper surface of the central portion of the lever 5. Shoji 2 shown in FIG.
When the wire 31 is tensioned from the opened state to the closed state of the shoji 2 shown by the solid line in FIG. 6, the lever 5 rotates clockwise, and the action pin 55 comes into contact with the arm 6 and stops. To do. At the same time, as shown by the chain double-dashed line in FIG.
Is rotated and the key arm 57 slides on the inclined surface 85 to rotate the seesaw plate 83, and as shown in FIG.
Is engaged with the square hole 24, and the lock mechanism 8 is turned on.

As a result, since the lock mechanism 8 holds the shoji 2 in the fully closed state, the load applied to the operating means 3 and the wire 31 can be reduced, and the durability and safety can be improved. When the wire 31 is loosened from the ON state of the lock mechanism 8 shown in FIG. 9A, the lever 5 is rotated by the action of the return spring 53 as shown in FIG. 8 and FIG. The arm 57 is disengaged from the key engagement groove 87 and the lock mechanism 8 is turned off.

In this embodiment, the action pin 55 of the lever 5
Until the arm 6 contacts the arm 6 and the key arm 57 is not engaged with the key engaging groove 87 ((B) of FIG. 9), the swinging mechanism 7 is formed, and the shoji 2 is strong or weak in wind. The degree of fenestration can be freely changed by changing the wind pressure.

[Brief description of drawings]

FIG. 1 is a front view of a swing window having a window opening / closing device.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a plan view of a link mechanism.

FIG. 4 is a plan view of the link mechanism during operation.

FIG. 5 is a perspective view of a link mechanism according to a second embodiment.

FIG. 6 is a plan view of a link mechanism according to a third embodiment.

FIG. 7 is a front view of a link mechanism according to a third embodiment.

FIG. 8 is a side view of the link mechanism of the third embodiment.

FIG. 9 is a side view of the lock mechanism.

[Explanation of symbols]

1 Window opening and closing device 10 window frames 12 Lower frame member 2 shoji 22 Lower edge 24 Square hole (locked part) 3 operation means 31 wire 4 link mechanism 43 spindle 5 Lever (biasing member) 57 key arm 6 arms 61 base 62 rotating arm 63 ball joint 64 twisting arm 65 ball joint 7 Missing mechanism 70 clutch 71 play gap 8 Lock mechanism 80 Seesaw 83 Seesaw board 84 Locking claw 85 inclined surface

Claims (7)

[Claims] 1. A swinging opening / closing type or sliding type shoji,
A window opening / closing device comprising an operating means for opening / closing the shoji, a link mechanism operated by the operating means to open / close the shoji, and a swing mechanism allowing free movement of the shoji, wherein the operating means is the link. The link mechanism comprises a wire routed to the mechanism and a winding mechanism for the wire, and the link mechanism rotates around a support shaft urged by the urging member and the urging member. A rotating arm, and a twisting arm that connects the rotating arm and the screen to each other via a ball joint, and the idling mechanism is provided between the biasing member and the rotating arm. A window opening / closing device characterized by having a play gap. 2. The window opening / closing device according to claim 1,
The window opening / closing device, wherein the urging member is a lever that rotates around a support shaft. 3. The window opening / closing device according to claim 2,
The support shaft of the lever is the same as the support shaft of the rotating arm, and the play gap is provided in a clutch that connects the base of the lever and the base of the rotating arm. Switchgear. 4. The window opening / closing device according to claim 2,
The window opening / closing device, wherein the play gap is provided between an operating portion of the lever and an operating portion of the rotating arm. 5. The window opening / closing apparatus according to claim 1, wherein the window opening / closing device rotates in conjunction with a lock mechanism provided between the screen and the window frame and the biasing member. A key for turning on and off the lock mechanism is additionally provided, and when the biasing member is rotated to a position where the shoji screen is fully closed, the key turns on the lock mechanism to fix the shoji screen to the window frame, The window opening / closing device, wherein the key turns off the lock mechanism when the biasing member rotates to the side that opens the shoji screen. 6. The window opening / closing device according to claim 5,
The key is a key arm formed integrally with the urging member, and the lock mechanism is installed on the window frame and has a locking claw at a front end and an inclined surface on which the key arm slides at a rear end. A window opening / closing device comprising a seesaw provided and a latched portion provided on the shoji and engaged with the locking claw. 7. The window opening / closing device according to claim 6,
The window opening / closing device, wherein the idle swing mechanism comprises a play gap of the key arm provided between a stopper provided on the window frame and the lock mechanism.