JP3292879B2 - Up / down window balancer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a balancer used for a wall of a building or an up / down window provided in a large door.

[0002]

2. Description of the Related Art In a raising / lowering window, a balancer is usually used to urge a movable shoji upward, hold the movable shoji at an appropriate opening, and smoothly open and close the movable shoji with a small force. ing.

Conventionally, as this type of balancer, a cylindrical cover disposed above a vertical frame of a window frame, a cylindrical cover disposed inside the cylindrical cover, and an upper end fixed to an upper end of the cylindrical cover, A lower end portion is fixed to the movable shoji via a bracket, and a tension coil spring for urging the movable shoji upward is known. A tension coil spring to which a torsion is applied is known.

[0004]

However, the conventional balancer has the following problems. That is, the height of the window frame may be changed variously. In this case, since the stroke of the movable shoji also changes, the length of the balancer also needs to be changed. Therefore, in order to use it for up-and-down windows provided with window frames having various heights, it is necessary to prepare balancers of various lengths according to the height of the window frame, which increases the cost.

An object of the present invention is to provide an up / down window balancer which solves the above problem.

[0006]

Means for Solving the Problems] hung window for balancer according to the present invention, the lower member hanging linear Shoji, a lowering member winding drum hanging, a constant force spiral spring which upwardly biases the variable dynamic shoji, hanging A lowering member winding drum and a constant load spiral spring are provided so as to transmit a force between them , and
And a gear device having a number of cylindrical gears .

In the above up-down window balancer, the hanging member winding drum and the constant load spiral spring are arranged on the substrate, and the hanging member winding drum is rotatable around an axis perpendicular to the substrate. , not preferable that the center line of the constant force spiral spring is perpendicular to the substrate.

[0008] it is et al., In the hung window for balancer drum preparative hanging member winding are adapted to linear sliding door hanging member to the tapered portion is wound together with and has a tapered portion, the line It is preferable that the end of the sash sliding member hanging around the tapered portion is located on the small end diameter side of the tapered portion.

[0009]

[Function] A linear sliding door suspension member and a suspension member winding drum
When a constant force spiral spring which upwardly biases the variable dynamic shoji,
A plurality of cylindrical teeth are provided between the suspension member winding drum and the constant load spiral spring so as to transmit a force therebetween.
If a gear device having a wheel is provided, if the length of the sliding door suspension member and the constant load spiral spring is made to correspond to the stroke of the movable sliding door when the height of the window frame is maximized,
One type of balancer can be applied to up / down windows having window frames of various heights. In addition, since a constant load spiral spring applies an upward force to the movable shoji,
A uniform force can be applied in the entire moving range of the movable shoji. Furthermore, the suspension member winding drum and the constant load vortex
Provided between the helical springs to transmit force between them,
And having a gear device having a plurality of cylindrical gears,
The entire balancer can be made compact. Only
In addition, friction during rotation of multiple cylindrical gears and meshing of gears
The suspension member winding drum and the constant load spiral
Because it can add resistance to the transmission of force between the
It can be adapted to movable weights of various weights. sand
In other words, if a downward force is applied to the tip of the
In this case, this force is a constant
It will be received by the load spiral spring. Accordingly
Is greater than the force determined by the force of the constant load spiral spring.
Even if you use a movable shoji with a heavy weight,
It will no longer descend. On the other hand,
When an upward force is applied to the tip, the constant load spiral spring
The force is reduced by the resistance applied in the gearing
In this state, it is transmitted to the tip of the shoji hanging member. Therefore,
Weight smaller than the force determined by the force of the constant load spiral spring
Even if a movable shoji with a large amount is used, the shoji will rise naturally
You will not do it. No resistance is applied by the gear
The constant load vortex even if the weight of the movable shoji changes slightly.
It is necessary to change the force of the spiral spring.
It is necessary to prepare several types and the cost is high
You.

A hanging member winding drum and a constant load spiral spring are disposed on the substrate, and the hanging member winding drum is rotatable about an axis orthogonal to the substrate, and a center of the constant load spiral spring. When the line is perpendicular to the substrate, the size of the balancer in the direction perpendicular to the substrate can be reduced. Therefore, when the balancer substrate is mounted in the upper frame of the window frame in a horizontal state, the height of the upper frame can be reduced. In addition, the balancer is used for an up-and-down window provided in a large-sized door including two parallel plate-like bodies and a frame disposed around the plate-like body, and an inner surface of one of the two plate-like bodies is used. When the substrate is mounted in a vertical state, the distance between the two plate-like bodies can be reduced. A hanging member winding drum and a constant load spiral spring are arranged on the substrate, the hanging member winding drum is rotatable around an axis parallel to the substrate, and a center line of the constant load spiral spring is parallel to the substrate. In this case, the dimension of the balancer in the direction perpendicular to the substrate becomes relatively large, and as a result, the height of the upper frame of the window frame on which the balancer is mounted must be increased, and the appearance becomes unsightly. The interval between the two plate-like body of the door is relatively large, resulting in increased thickness of the door appearance ing to require greater force to open and close the door with becomes unsightly.

The hanging member winding drum has a tapered portion and the linear shoji hanging member is wound around the tapered portion. The linear shoji hanging member is wound around the tapered portion. If the take-up end is located on the small end diameter side of the tapered portion, the linear shoji hanging member is uniformly wound over the entire tapered portion of the hanging member winding drum. Winding of the hanging member onto the hanging member winding drum and feeding from the hanging member winding drum are smoothly performed. If the hanging member winding drum does not have a tapered portion and the entire outer peripheral surface is cylindrical and the linear sash sliding member is wound here, the hanging member is a part of the drum. The suspension member may be entangled and rolled up, causing the suspension member to become entangled and hindering the winding of the linear shoji suspension member onto the suspension member winding drum and the unwinding from the suspension member winding drum. May come.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the balancer according to the present invention is applied to an up / down window provided on a wall of a building.

FIG. 1 shows an up / down window provided with a balancer, and FIGS. 2 and 3 show details of the balancer.

Referring to FIG. 1, a fixed shoji (2) is fitted over an upper portion of a window frame (1), and a movable window vertically movable on the window frame (1) inside the fixed shoji (2). A shoji (3) is arranged. The window frame (1) consists of the upper frame (1a) and the lower frame (1
b) and left and right vertical frames (1c). The movable shoji (3) is guided by the left and right vertical frames (1c) to move up and down. The upper frame (1a) of the window frame (1) has a substantially U-shaped cross section.

A balancer (4) is attached to both left and right ends of the lower wall of the upper frame (1a) of the window frame (1). Hereinafter, the left balancer (4) will be described with reference to FIGS.

In FIGS. 2 and 3, a balancer (4)
Is equipped with a sash suspension wire (5) (a linear sash suspension member) having a movable sash (3) fixed at the end, and a wire winding drum (6) (a hanging member winding drum). ing. The wire winding drum (6) is made of synthetic resin and has a tapered portion (6a) gradually increasing in diameter from below to above. (5) is to be wound. That is, the end of the sash suspension wire (5) is fixed to the upper end of the cylindrical portion below the tapered portion (6a), and the sash suspension wire (5) is on the small end diameter side of the tapered portion (6a). , And the sash hanging wire (5) is uniformly wound over the entire tapered portion (6a) of the wire winding drum (6). Therefore, when the movable shoji (3) described later moves up and down, the winding of the shoji suspending wire (5) onto the wire winding drum (6) and the unwinding from the wire winding drum (6) can be smoothly performed. Done. The wire winding drum (6) is
The left side of the substrate (7) fixed horizontally to the lower wall of the upper frame (1a) of (1) is rotatably mounted on a vertical axis (8). The shoji suspension wire (5) is wound around a wire winding drum (6), is attached to a substrate (7), is hung on a guide pulley (9) that is rotatable about a horizontal axis, and (7) and extends downward through the lower wall of the upper frame (1a), and its tip is fixed to the upper end of the movable shoji (3). Then, the shoji suspending wire (5) is fed out of the wire winding drum (6) when the movable shoji (3) is lowered, and is transferred to the wire winding drum (6) when the movable shoji (3) is raised. It can be wound up.

At the right end of the substrate (7), a fixed-load spiral spring mounting drum (11) made of synthetic resin is rotatably mounted on a vertical shaft (12). 13) is installed.

Wire winding drum (6) and constant load spiral spring
A transmission means is provided between (13) and so as to transmit a force between the two. The transmission means is rotatably mounted on the substrate (7) by a vertical shaft (15) on the left side of the constant load spiral spring mounting drum (11), and has a constant load spiral spring (13).
And a constant load spiral spring winding drum (14) made of synthetic resin. A flat portion (14a) is formed on a part of the peripheral surface of the constant load spiral spring winding drum (14), and the flat portion (14a) is formed.
In (a), the tip of the constant-load spiral spring (13) is fixed with screws (16).

The transmission means may be a wire winding drum (6)
And a constant load spiral spring winding drum (14),
In addition, the moving speed of the tip of the spring (13) when the constant load spiral spring (13) is extended and the moving speed of the tip of the spring (13) when the constant load spiral spring (13) is wound up are determined by changing the sliding wire ( Five)
Moving speed of the tip of the wire (5) and the moving speed of the tip of the wire (5) when the wire (5) is wound onto the wire winding drum (6) when the wire is pulled out from the wire winding drum (6). A gear device (17) for shifting the speed so as to be faster .

The gear device (17) is configured to rotate integrally with the large spur gear (18) integrally formed below the wire winding drum (6) and the constant load spiral spring winding drum (14). Vertical axis (1
Small spur gear (19) rotatably mounted on (5), and rotation of substrate (7) by vertical axis (21) between wire winding drum (6) and constant load spiral spring winding drum (14) A first intermediate small spur gear (22) made of synthetic resin that is freely attached and meshes with the large spur gear (18), and is rotatable about a vertical shaft (21) so as to rotate integrally with the first intermediate small spur gear (22). The intermediate spur gear (23) made of synthetic resin, which is mounted on the substrate, is rotatable on the substrate (7) by the vertical shaft (24) between the intermediate spur gear (23) and the constant load spiral spring winding drum (14). Mounted on the middle spur gear
(23) and a second intermediate small spur gear (25) made of synthetic resin meshing with the small spur gear (19).

The right balancer (4) is symmetrical to the left balancer (4). The combined force of the constant load spiral springs (13) of the left and right balancers (4) balances the weight of the movable shoji (3).

In the above configuration, when the movable shoji (3) is lowered, the shoji suspending wire (5) is moved to the wire winding drum (6).
From the wire winding drum (6) and the spur gear (1
8) rotates in the direction indicated by the arrow (A) in FIG. Then, the first intermediate small spur gear (22) and the intermediate large spur gear (23) meshing with the large spur gear (18) rotate in the direction shown by the arrow (B) in FIG. 2, and further mesh with the intermediate large spur gear (23). The second intermediate small spur gear (25) rotates in the direction shown by the arrow (C) in FIG.
Then, the small spur gear (19) meshing with the second intermediate small spur gear (25) and the constant load spiral spring winding drum (14) rotate in the direction shown by the arrow (D) in FIG. As a result, the constant load spiral spring (13) mounted on the constant load spiral spring mounting drum (11) is drawn out and wound on the constant load spiral spring winding drum (14), and the constant load spiral spring mounting drum is mounted. (11)
Rotates in the direction indicated by the arrow (E) in FIG. Therefore,
When the constant load spiral spring (13) is extended by the gear device (17), the moving speed of the spring (13) tip
Wire (5) when unreeling (5) from the wire winding drum (6)
The speed is changed so as to be faster than the moving speed of the tip, and the rotation of the wire winding drum (6) is transmitted to the constant load spiral spring winding drum (14). That is, the speed is changed so that the moving speed of the tip of the constant load spiral spring (13) becomes faster than the moving speed of the movable shoji (3).

At this time, since an upward force is applied to the movable shoji (3) by the constant load spiral spring (13), a uniform upward force is applied to the movable shoji (3) in the entire moving range. As a result, the movable shoji (3) is stopped at an arbitrary position. In addition, the movable shoji (3) can be lifted with a small force.

When the movable sash (3) is raised, the force of the constant-load spiral spring (13) is reversed in the opposite manner.
The constant-load spiral spring (13) wound on the constant-load spiral spring winding drum (14) is fed out and wound on the constant-load spiral spring mounting drum (11) side. It is wound on a wire winding drum (6). At this time, gear device (17)
When the constant load spiral spring (13) is wound up, the moving speed of the tip of the spring (13) is increased, and the tip of the wire (5) at the time of winding the sash hanging wire (5) onto the wire winding drum (6) is changed. The rotation of the constant load spiral spring winding drum (14) is transmitted to the wire winding drum (6). That is, the speed is changed so that the moving speed of the tip of the constant load spiral spring (13) becomes faster than the moving speed of the movable shoji (3).

Further, when a downward force is applied to the tip of the sash suspension wire (5), the downward force is applied to the constant load spiral spring winding drum (14) and the plurality of gears (18) of the gear unit (17). (1
9) (22) (23) (25) friction when rotating, gears (18) (22), (23)
(25), (25), (19), the resistance given to the transmission of force between the hanging wire winding drum (6) and the constant load spiral spring (13) due to the engagement of the constant load spiral spring (13). Of the spring force. Therefore, even if a movable shoji (3) having a weight larger than the force determined by the force of the constant load spiral spring (13) is used, the shoji (3) does not drop due to its own weight. On the other hand, when an upward force is applied to the tip of the sash suspension wire (5), the force of the constant load spiral spring (13) is reduced by the above-mentioned resistance and applied to the tip of the sash suspension wire (5). Convey. Therefore, even if a movable shoji (3) having a smaller weight than the force determined by the force of the constant load spiral spring (13) is used, the shoji (3) does not rise naturally. As a result, the range of adaptation to the weight of the movable shoji (3) can be widened.

Next, specific experimental examples performed using the apparatus of the present invention will be described together with comparative experimental examples.

Specific Experimental Examples Large spur gear (18), small spur gear (19), first intermediate small spur gear (22),
The intermediate large spur gear (23) and the second intermediate small spur gear (25) are formed of polyacetal, respectively.
8) has 36 teeth, the small spur gear (19) has 18 teeth, the first intermediate small spur gear (22) has 18 teeth, the intermediate large spur gear (23) has 36 teeth and the second intermediate small spur gear. The number of teeth of (25) was set to 18. A constant load spiral spring (13) having an output (torque) of 9.35 kgmm was used. Further, the length of the tapered portion (6a) of the wire winding drum (6) is 8 mm, the large end diameter of the tapered portion (6a) is 26 mm, and the small end diameter is 22 m.
m. Then, the shoji suspending wire (5) is paid out from the wire winding drum (6), the distance between the substrate (7) and the tip of the shoji suspending wire (5) is variously changed, and the length of the shoji suspending wire (5) is changed. A weight was attached to the tip, and the weight of the weight at which the weight began to fall and the weight of the weight at which the weight began to rise at each distance were determined. The result is shown as A in FIG.

Further, after the winding of the sash hanging wire (5) from the wire winding drum (6) and the winding on the wire winding drum (6) are repeated 10,000 times with a stroke of 550 mm, the above operation is repeated. The same test was performed. The result is shown as B in FIG.

In FIG. 4, ↓ indicates the weight of the weight at which the weight starts to decrease, and ↑ indicates the weight of the weight at which the weight starts to increase.

In the above embodiment, only one of the sliding doors is a movable sliding door, but the present invention is not limited to this. Both sliding doors may be movable sliding doors.
In this case, each movable sash is provided with two balancers.

In the above embodiment, the balancer according to the present invention is applied to the up / down windows provided on the wall of a building. This balancer is composed of two parallel plate members and a plate member. It is also applicable to up-and-down windows provided on a large-sized door composed of a frame disposed around the periphery.

[0032]

According to the balancer for raising and lowering windows according to the present invention, as described above, the length of the sliding door suspension member and the length of the constant load spiral spring are adjusted by the stroke of the movable sliding door when the height of the window frame is maximized. In this case, the cost can be reduced because one type of balancer can be applied to up-and-down windows having window frames of various heights. Further, since an upward force is applied to the movable shoji by the constant load spiral spring, a uniform force can be applied in the entire moving range of the movable shoji. Therefore, the movable shoji can be stopped at an arbitrary height. Furthermore, a hanging member winding drum
Between the spring and the constant-load spiral spring.
And a gear device having a plurality of cylindrical gears.
If equipped, make the whole balancer compact
Can be. In addition, friction when rotating multiple cylindrical gears,
By engaging the gears, the suspension member winding drum and
Adding resistance to the transmission of force between constant load spiral springs
So that one constant load spiral spring can
It can be adapted to movable shoji. Therefore, the window frame
When the height of the shoji is changed and the weight of the shoji changes,
Cost can be reduced with various types of balancers
Become.

The suspension member winding drum and the constant load spiral spring are arranged on the substrate, and the suspension member winding drum is rotatable about an axis perpendicular to the substrate, and the constant load spiral spring is provided. Is perpendicular to the substrate, the size of the balancer in the direction perpendicular to the substrate can be reduced. Therefore, when the substrate of the balancer is mounted horizontally in the upper frame of the window frame, the height of the upper frame can be reduced, and the appearance is excellent. Also,
The balancer is used for an up-and-down window provided in a large-sized door composed of two parallel plate-like bodies and a frame disposed around the plate-like body, and the balancer is provided on one of the inner surfaces of both plate-like bodies. When the substrate is mounted so as to be in a vertical state, the distance between the two plate-like bodies can be reduced. Therefore, it is possible to reduce the thickness of the door, it is possible to ing for opening and closing the door with become what appearance was excellent with a small force.

[Brief description of the drawings]

FIG. 1 is a perspective view of an up / down window using a balancer according to the present invention.

FIG. 2 is a plan view showing an embodiment of a balancer according to the present invention.

FIG. 3 is a partially cutaway front view of the balancer according to the present invention.

FIG. 4 is a graph showing the results of a specific experimental example.

[Explanation of symbols]

(3) Movable shoji (4) Balancer (5) Hanging wire for shoji (linear shoji hanging member) (6) Wire winding drum (winding drum for hanging member) (13) Constant load spiral spring

Claims (2)

(57) [Claims] And 1. A linear sliding door hanging member, a lower member winding drum hanging, a constant force spiral spring which upwardly biases the variable dynamic Shoji, between the hanging member winding drum and constant force spiral spring Provided to transmit force between the two , and
And a gear device having a cylindrical gear . 2. A hanging member winding drum and a constant load spiral spring are disposed on a substrate, wherein the hanging member winding drum is rotatable about an axis orthogonal to the substrate.
The balancer for an up / down window according to claim 1, wherein a center line of the constant load spiral spring is orthogonal to the substrate.