JPH0610559A - Opening-closing device for double hung type sash window - Google Patents

Abstract

PURPOSE:To open an upper window frame independently in a single operation manner, and to control the speed of opening and prevent the generation of a collision sound with a sash frame. CONSTITUTION:An upper window frame 22, into which glass G is fitted, is hung down by suspending wires 32, 34 through pulleys 38, 40, 46 mounted into an upper sash frame. The suspending wires 32, 34 are connected by a connecting member 42, and connected to an inner wire 56. The inner wire 56 is bonded with a moving plate 58. Pulleys 66, 68 are supported pivotally to the moving plate 58. The pulleys 66, 68 constitute a running block, and power transmission wires 74 are stretched among the pulleys 66, 68 and a pulley 70 disposed to a lower section. The power transmission wires 74 are wound on a drum. Accordingly, when the state of the winding of the drum is released at the time of emergency, etc., the upper window frame 22 intends to fall rapidly by its own weight, but falling speed is controlled by the pulleys 66, 68.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting and lowering type sash window opening / closing device.

[0002]

2. Description of the Related Art A raising / lowering sash window 10 as shown in FIG. 8 normally connects upper and lower window frames 22 and 24 with a wire so that the upper window frame 22 in which the glass G is fitted can be easily opened and closed. However, the upper window frame 22 and the lower window frame 24 are configured to open and close in cooperation with each other by balancing their own weight.

By the way, in order to maintain a comfortable living environment, it is necessary to regularly ventilate the dirty air in the room, and it is also necessary to satisfy the legal requirement for natural smoke emission.
As the ventilation and smoke discharging method, it is general that the upper window frame 22 is opened, and natural ventilation and smoke discharging are performed through the opening portion by natural force such as wind force.

However, in the case of the up-and-down type sash window 10 as described above, since the upper window frame 22 and the lower window frame 24 are adapted to be opened and closed in conjunction with each other, the upper window frame 22 is opened. The lower window frame 24 opens even though it is not necessary.

Therefore, in the upper window frame 22 and the lower window frame 24,
There is also a raising and lowering type sash window in which the weights are connected by wires to be balanced and the upper and lower window frames 22, 24 can be opened and closed independently.

However, in such an up-and-down type sash window, in an emergency such as a fire, the upper window frame 2 can be pushed with one touch.
2 can not be released.

Therefore, as shown in FIGS. 9 and 10,
An opening / closing device in which a lower end of the upper window frame 22 is pivotally supported by a hinge and an upper end of the upper window frame 22 is connected to a wire wound around a drum has been put into practical use. In this opening / closing device, during normal natural ventilation and smoke emission, the upper window frame 22 is opened and closed by rotating the drum, and in an emergency, the rotation restriction of the drum is released, and the upper window frame 22 is self-weighted. The window frame 22 is opened.

However, in the above-mentioned opening / closing method, when the inside is tilted down (see FIG. 9), the curtains and the like in the room are entangled with each other, so that the ventilation / smoke function cannot be exerted. Further, in the case of falling over (see FIG. 10), rainwater and the like enter the room, and the inside of the upper window frame 22 gets wet with rain, which is not preferable. In addition, the wire is exposed during ventilation, and it does not look good.

Further, in the case of the open system which opens and closes under its own weight as described above, a loud noise is generated at the time of opening and closing in an emergency or the like, which causes psychological anxiety to the resident.

[0010]

SUMMARY OF THE INVENTION In consideration of the above facts, the present invention provides a raising / lowering sash window which can independently open the upper window frame with one touch, and regulates the opening speed to prevent a collision noise with the sash frame. An object is to provide a switchgear.

[0011]

A lifting and lowering type sash window opening and closing device according to the present invention comprises an upper sash window and a lower sash window which move along a guide groove formed in a sash frame fitted into an opening of a building. A hanging member that is provided in a raising and lowering type sash window that opens and closes an opening by means of a pulley provided in the sash frame, and a winding means that winds the hanging member. And a regulation unit that is disposed between the pulley and the winding unit and that regulates the opening speed of the upper sash window due to its own weight.

[0012]

In the opening / closing device of the raising / lowering sash window having the above-mentioned structure, the opening portion is opened and closed by the upper sash window and the lower sash window which move along the guide groove formed in the sash frame. The upper sash window is suspended by a suspension member via a pulley provided in the upper sash frame. The hanging member is wound around the winding means. Therefore, the upper sash window can be opened and closed by winding the suspension member by the winding means or releasing the winding state. Further, between the pulley and the winding means, for example, a regulating means constituted by a moving pulley is provided to regulate the opening speed of the upper sash window due to its own weight. Therefore,
When the winding state of the winding means is released in an emergency or the like, the upper sash window tries to drop rapidly due to its own weight, but the opening speed is regulated by the regulating means. Therefore, the upper sash window softly descends along the sash frame, and no collision sound with the sash frame is generated. Further, the regulation means constituted by the movable pulley also reduces the winding force when winding the hanging member.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 2 shows a raising / lowering sash window 10 to which the present invention is applied. As shown in FIG. 8, in the rectangular opening 12 provided on the wall surface W of the building, the vertical sash frame 14, the upper sash frame 16, and the lower sash frame 18 are provided.
And are installed. In the vertical sash frame 14, two guide grooves (not shown) are formed in parallel in the longitudinal direction. In the guide groove, the upper window frame 22 and the lower window frame 24 in which the glass G is fitted are attached so as to be able to be pulled up and down, thereby forming the up-and-down sash window 10.

As shown in FIGS. 1 and 2, the upper window frame 2
An L-shaped bracket 26 is fixed to the central portion of the top surface of the upper frame 22A of 2. Standing surface 2 of this bracket 26
A pair of through holes 28 are formed in 6A. A fastener 30 is fixed to the through hole 28. One end of each of the suspension wires 32 and 34 stretched toward both ends of the upper frame 22A is fixed to the fastener 30 by penetrating the through hole 30. Hanging wire 32 stretched to the right
Via the pulley 36 arranged at the right end of the upper frame 22A,
Pulley 3 pivotally supported on the right inner wall of the upper sash frame (not shown)
It is wrapped around 8 in the counterclockwise direction and suspends the upper window frame 22. Further, the hanging wire 32 is wound around a pulley 40 pivotally supported on the left inner wall of the upper sash frame in a clockwise direction and connected to a connecting member 42.

On the other hand, the suspending wire 34 is wound clockwise through a pulley 44 arranged at the left end of the upper frame 22A and a pulley 46 which is axially supported by a left inner wall of an upper sash frame (not shown). The upper window frame 22 is hung, and its end is connected to the connecting member 42. The connecting member 42 can be inserted into and removed from the outer tube 48 by inserting a sleeve 50 attached to an end portion of the outer tube 48 and fixed to the upper sash frame. As a result, when the connecting member 42 moves in the direction of arrow A, the upper window frame 22 is hung by the hanging wires 32 and 34 and moves up and down along the vertical sash frame 14.

At the other end of the outer tube 48,
A sleeve 52 is attached. This sleeve 52
Is fixed to an L-shaped end plate 54 arranged on an upper portion of a vertical sash frame (not shown). Further, the inner wire 56 is inserted into the outer tube 48 and is connected to the connecting member 42. The end portion of the inner wire 56 penetrates the end plate 54 and is connected to a connecting pin 62 that is bridged by an L-shaped bracket 60 fixed to the upper surface of the moving plate 58, and suspends the moving plate 58. .

From the lower surface of the moving plate 58, two pairs of support brackets 64 extend downward in parallel.
The support bracket 64 has pulleys 66,
68 is pivotally supported. On the other hand, below the pulleys 66 and 68, an L-shaped fixing plate 72 having a pulley 70 pivotally supported is fixed inside the vertical sash frame 14. One end of a power transmission wire 74 is fixed to the upright surface 72A of the fixed plate 72. This power transmission wire 74
Is wound around the upper pulley 66, then wound around the lower pulley 70, further wound around the upper pulley 68, and penetrates through a through hole 76 formed in the lower surface of the fixing plate 72. is doing. As a result, the pulleys 66 and 68 function as a moving pulley, and the inner wire 5
The moving speed of 6 in the direction of arrow B is limited to reduce the opening speed of the upper window frame 22 to a constant speed.

As shown in FIG. 1, an outer tube 78 is connected to the lower surface of the through hole 76. The power transmission wire 74 is inserted through the outer tube 78. The end portion of the power transmission wire 74 is wound around the drum 82 of the operator device 80, as shown in FIG. A shaft 84 is attached to the axial center of the drum 82. Both ends of the shaft 84 are rotatably supported by the case 86 of the operator device 80. A drive pulley 87 is coaxially attached to the left end of the shaft 84. The drive belt 9 is attached to the drive pulley 87 and the pulley 90 attached to the shaft portion of the operation lever 88.
2 is wrapped around. As a result, the operating lever 8
By manually turning 8, the drum 82 is rotated via the drive belt 92, and the power transmission wire 74 is wound up. In addition, the operating lever 88 is the link member 9
It can be folded to the case 86 side by 7, and can be stored when not in use. Further, the winding force of the power transmission wire 74 is reduced by the pulleys 66 and 68 functioning as moving pulleys.

A ratchet gear 94 is coaxially fixed to the right end of the shaft 84. As shown in FIG. 5, a pawl 98 provided at the tip of a lever 96 meshes with the ratchet gear 94 to regulate the rotation in the arrow A direction. The rear end of the lever 96 is rotatably supported by the support bracket 100. A spring 102 is connected to the center of the lever 96, and the claw 98 is connected to the ratchet gear 9
It is urging in the direction of 4. Further, a stopper 101 that limits the amount of movement of the pawl 98 is provided between the support bracket 100 and the spring 102 and is in contact with the lever 96.

At the rear end of the lever 98, the pushing bar 1
04 is fixed. A taper surface (not shown) is formed at the tip of the extrusion bar 104. As shown in FIG. 4, this tapered surface is in contact with the tapered surface of the pushing member 108 that projects laterally from the side surface of the protruding portion 106A of the smoke exhaust button 106. This allows the smoke button 1
When 06 is pushed, the pushing bar 104 moves in the direction of arrow B by the wedge effect, and the meshing state of the ratchet gear 94 and the claw 98 is released.

On the other hand, as shown in FIG. 6, the lower window frame 24 is
It is suspended by a suspending wire 110 connected to a balancer 108 via a pulley 112 arranged on the upper sash frame 16. In this balancer 108, as shown in FIG. 7, the outer end of the coil spring 116 is fixed to the inner wall of a substantially cylindrical casing 114. The inner end of the coil spring 116 is connected to the suspending wire 110, and the weight of the lower window frame 24 suspended via the pulley 112 is canceled by the tension of the coil spring 116. As a result, the lower window frame 24 can be stopped at any position. The casing 114 is
It is covered with a bifurcated fixing bracket 118 and is firmly fixed to the upper sash frame 16.

Next, the operation of the raising / lowering sash window opening / closing device according to this embodiment will be described. The lower window frame 24 is provided with a handle portion (not shown), and as shown in FIG. 6, the operator puts a finger on the handle portion and raises and lowers it in the direction of arrow A to open and close it. At this time, the own weight of the lower window frame 24 is
Since it is canceled by the balancer 108, it is possible to stop the lower window frame 24 at an arbitrary position and easily adjust the open area.

On the other hand, as shown in FIG. 2, the upper window frame 22 is suspended by suspending wires 32 and 34 so as to be movable up and down. The suspending wires 32 and 34 are pulleys 66 and 6.
8 is connected to a moving plate 58 of a moving pulley. A power transmission wire 74 wound around a drum 82 is wound around the pulleys 66 and 68. Therefore, by rotating the drum 82 with the operation lever 88, the upper window frame 22 is pulled up. In addition, the winding force of the power transmission wire 74 is equal to that of the pulley 6 that functions as a moving pulley.
It is reduced by 6, 68. Further, when the upper window frame 22 is pulled down, when the smoke exhaust button 106 is pressed, the meshing state of the ratchet gear 94 and the claw 98 is released,
With one touch, the upper window frame 22 moves downward due to its own weight. At this time, the pulleys 66, 6 functioning as moving pulleys
Since the opening speed of the upper window frame 22 is limited by 8,
The upper window frame 22 is opened softly so that no collision noise with the sash frame occurs.

[0024]

Since the present invention is constructed as described above, the upper sash window can be independently opened along the vertical sash frame with one touch, and the opening speed is regulated, so that no impact noise with the sash window is generated. .

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an opening / closing mechanism of an upper window frame of a lifting / lowering sash window opening / closing apparatus according to the present invention.

FIG. 2 is an overall front view of the opening / closing mechanism for the upper window frame of the raising / lowering sash window opening / closing device according to the present invention.

FIG. 3 is a front view showing an operator device of an opening / closing device for a raising / lowering sash window according to the present invention.

FIG. 4 is a sectional view taken along line 4-4 of FIG.

5 is a sectional view taken along line 5-5 of FIG.

FIG. 6 is an overall front view showing the balancer mechanism of the lower window frame of the raising / lowering sash window opening / closing device according to the present invention.

FIG. 7 is an exploded perspective view showing a balancer mechanism of a lower window frame of the raising / lowering sash window opening / closing device according to the present invention.

FIG. 8 is an elevation view showing a general shape of a raising / lowering sash window.

FIG. 9 is a perspective view showing an inward falling sash window.

FIG. 10 is a perspective view showing an outward sash window.

[Explanation of symbols]

 82 Drum (Winding Means) 38 Pulley (Hanging Member) 40 Pulley (Hanging Member) 46 Pulley (Hanging Member) 66 Pulley (Regulating Means) 68 Pulley (Regulating Means) 70 Pulley (Regulating Means) 74 Driving Force Transmission 74 Wire (Regulator) 32 Suspended wire (Suspended member) 34 Suspended wire (Suspended member) 56 Inner wire (Suspended member)

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shoichi Wada 8-21-1, Ginza, Chuo-ku, Tokyo Stock company Takenaka Corporation Tokyo Main Store (72) Inventor Toru Fukamizu 8-21, Ginza, Chuo-ku, Tokyo No. 1 Incorporated Takenaka Corporation Tokyo Main Store (72) Inventor Katsunori Saruwatari 8-21-1, Ginza, Chuo-ku, Tokyo Incorporated Takenaka Corporation Tokyo Main Store (72) Inventor Hisashi Matsuoka Chuo-ku, Tokyo 8-21-1, Ginza Stock Company Takenaka Corporation Tokyo Main Store (72) Inventor Hisaaki Kato 4-30-9 Higashi-Nakano, Nakano-ku, Tokyo Meishin Industry Co., Ltd.

Claims (1)

[Claims] 1. An upper sash window that opens and closes an opening with an upper sash window and a lower sash window that move along a guide groove formed in a sash frame that is fitted into the opening of a building. A suspension member for suspending the window via a pulley provided in the sash frame, a winding means for winding the suspension member, a winding member arranged between the pulley and the winding means, and A lifting and lowering type sash window opening and closing device, comprising: a regulating means for regulating an opening speed of the sash window due to its own weight.