JPH03180683A - Balancing device for vertical motion window - Google Patents

Abstract

PURPOSE:To facilitate regulation of a balancing force by a method wherein a regulating means comprising a regulating shaft for a balancing force, a brake piece for the regulating shaft, and a cam surface for operation of the brake piece is mounted in a slide body through which a window screen is coupled to a balancing means. CONSTITUTION:A helical lever 11 of a balancing member is coupled to an outer window screen and an inner window screen 2, and torque balanced with the two screens in the maximum rising position is exerted on a torsion spring 15. When the torque of the torsion spring 15 is regulated, a brake piece 50 integrally erecting on a rotary ring 52 is pressed against a regulating shaft 32 by means of a cam surface 51 formed on the inner peripheral surface of the enlarge hole of a slide body 16 to exert a brake force for regulation. Press of the brake piece 50 can be released by means of the cam surface 51 and a brake on the regulating shaft 32 is released for regulation.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a balancing device for a vertically moving window.

[Conventional technology]

There is a known device for suspending vertically movable windows that uses the torsional force of a torsion spring to suspend the window shoji, and the adjusting shaft is rotated in one direction using a ratchet mechanism to adjust the torsional force. There are some that have a coil-shaped brake spring that applies braking force to the adjustment shaft.

Further, in a device for rotating a window sash of a vertically movable window from a vertical direction to a horizontal direction, a balancing device comprising a balancing means for the window sash and a means for adjusting the balancing force of the means, and a balancing device and a window sash A balancing device is known that is equipped with a braking means that applies a braking force to the window sash when it is tilted to fix it in that position.

[Problem to be solved by the invention]

Among the conventional balancing devices mentioned above, those that use a ratchet mechanism tighten the torsion spring (- is convenient, but cannot be unwound and cannot adjust the torsional force properly. Both tightening and unwinding are possible, but due to the uncertainty of the braking force of the brake spring and the decrease in braking force due to weakening of the brake spring, the torsion spring will naturally unwind and become unusable. The tightening and unwinding operations of the brake spring are not easy due to the brake spring, and it is heavy, and furthermore, the brake spring is not easy to assemble.

In addition, in C: where the window sash can not only move up and down but also fall back and forth, it is equipped with a hanging means but lacks a braking means, and when the window sash is tilted in balance with a balancing means, its balance If the shoji collapses and the lifting force of the hanging arm becomes relatively greater than the pulling force of the shoji, the shoji rises, and the latter Since it lacks an adjustment means, it is not possible to adjust the balance means after the balance means and the shoji are assembled in the window frame, or to adjust for changes in the force of the balance means due to use.

Both of these C2 conventional balancing devices have problems.

According to the present invention, the combined force of the balancing means for vertically moving windows can be adjusted reliably, easily, and easily, and the combined force can be maintained reliably over a long period of time. The counterbalance means can also be installed in the window frame, and when the window sash is tilted, a braking force is automatically applied to the shoji to maintain the balance of the window sash. The purpose is to provide a convenient balancing device.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a combination means having a torsion spring that hangs with a window sash, and a window sash connected to the balancing means to guide the window sash up and down along the vertical frame of a window frame. a sliding body that adjusts the balance force of the torsion spring, and a means that is incorporated into the sliding body and adjusts the balancing force of the torsion spring; It includes a cam surface for operation of the brake piece.

The present invention further includes a braking means that automatically brakes the sliding body according to the forward or backward tilting of the window sash.

Specific examples of the present invention will be described below with reference to the drawings.
:explain.

The outer window shoji (1) and the inner window shoji (2) are window frames (3)
The outer window shoji closes the upper part of the window, and the lower window shoji closes the lower part of the window. Each window shoji (1), (2) has counterbalance members (6), (7) (4th
(Figure), it is suspended from the vertical frame (4) in a balanced state and is stopped at an arbitrary position.

The balance members (6) and (7) have the same structure except for the dimensions to fit the inner and outer shoji (1) and (2), so we will mainly explain the ones for the inner shoji (2). do.

The same applies to other members.

The suspension members (6) and (7) extend in the vertical direction, and their upper ends are connected to a cylinder (9) connected by a vertical frame (4) (nippin (8) (Figs. 2 and 3)) and a core part. A nut αO is rotatably connected to the lower end, and a screw is inserted into the cylinder so as to be movable up and down, the lower end of which passes through the nut αO in a threaded state and projects outward from the lower end of the holder (9). A wire rod αD, an upper end α3 wound around the spiral rod 0 in the tube (9) and fixed to the tube (9) via a snap stopper O, and a lower end α◆ fixed to a nut αO. The torsional spring α0 is provided.

As the spiral rod 0 descends, it rotates the nut αO and tightens the torsion spring α9, and the torsion spring α unwinds it; thus, the nut αO is reversed and the spiral rod aD is raised. work. If the spiral rod αD is connected to the shoji (1), (2) and a torsion force is applied to the torsion spring 00 that is balanced with the shoji (1>, (2)) at its maximum raised position, the torsion spring α9 The shoji is always suspended against the shoji, allowing the shoji to remain stationary at any desired position, and the shoji can be moved up and down with a small amount of force.

The sliding body αθ is mainly composed of a rectangular parallelepiped part a and a cylindrical part α8 formed integrally with the part,
It is slidably incorporated into the guide groove (5) of the vertical frame (4) of the window frame.

The rectangular parallelepiped portion α has vertical sliding grooves (ends) formed on mutually parallel planes a9 on both sides, and the sliding grooves are located on the opening surface of the guide groove (5) of the vertical frame (4). Nozomu flange Q1
) (Fig. 1/) to move the sliding body αG up and down along the guide groove (5). The rectangular parallelepiped part α (on a plane perpendicular to the two side planes α9) is located below C: bearing hole O (
(Fig. 7), a rotating shaft (C) is rotatably fitted into the bearing hole, and a connecting arm @ is fitted into a connecting hole @ of the rotating shaft to integrate the connecting arm and the rotating shaft. C: Rotatably connected. The shoji (to the connecting arm) is assembled and fixed from the lower end of the vertical stile @21 to the lower stile (to), and the shoji is tilted indoors from a vertical position to a horizontal position with the rotation axis (c) as the center of rotation. By tilting, the outer surface of the glass screen of the shoji (2) can be safely and easily cleaned indoors.

The cylindrical portion α8 has a bearing hole Gυ passing through it in the vertical direction and an enlarged hole (31a) (Fig. 7) connected to the bearing hole, and an adjustment for the torsion spring αO is provided in the bearing hole and the enlarged hole. An adjustment shaft (■) used as a means is rotatably inserted, and its upper end shaft portion (to) projects upward from the cylindrical portion αe, and a portion of the lower end shaft portion (b) extends from the cylindrical portion α8. protrudes downward. The adjustment shaft (■) has the same diameter from the shaft part (to) that fits into the bearing hole 0υ of the cylindrical part (0) to the shaft part (to) at its upper end, and from the shaft part (to) at the lower end from the bearing hole 01) is formed with a larger diameter than the bearing hole 01) and the shaft (to) (Fig. 7). When the adjusting shaft (2) is inserted into the bearing hole 0υ from below, the shaft part Part (to) is bearing hole 01)
The upward movement of the adjusting shaft (2) is stopped by hitting the step (b) between the enlarged hole (31a) and the upper end edge (to) of the bearing hole 01 at position C2 corresponding to the adjusting shaft diagram. Fit the retaining ring ■ into the annular groove (to) to prevent downward movement of the adjustment shaft @,
The adjustment shaft (2) is assembled in the bearing hole 6 so that it can only rotate. The upper end of the adjustment shaft (2) is provided with cross-shaped grooves, and the lower end of the spiral rod αD is inserted into one of the grooves 0υ, and the set screw is inserted into the spiral rod. They are connected to each other by passing through the hole and the screw hole of the adjustment shaft (2), and a pin (2) attached at right angles to the spiral rod αD is inserted into the other groove (6).

As a result, the adjustment shaft (2) is suspended from the spiral rod αυ and the sliding body αθ is suspended, and the sliding body α0 supports the shoji (2) via the rotating shaft (c) and the connecting arm (2), and the shoji (2
) is suspended by a counterbalance member (7).

The means for adjusting the torsional force of the torsion spring α9 of the balancing member (7) includes, in addition to the above-mentioned adjustment shaft (2), a brake piece ■ that applies a braking force to the adjustment shaft, and a cam surface that presses the brake piece against the adjustment shaft. (51). The brake pieces (2) are integrally erected on the rotary ring (52) at equal intervals so as to surround the adjustment shaft □□□, and extend radially from the rotary ring to the lever (53). The cam surface (51) is the sliding body αO
On the inner circumferential surface of the enlarged hole (ala), there are formed a number of holes equally spaced so as to correspond to the brake pieces (2). The cam surface (51) and the outer surface (54) between the brake pieces that contact the cam surface are formed in an arc shape whose radius increases as it progresses in the circumferential direction.
The length of the arc 4) is shorter than that of the cam surface (51), allowing it to swing with relative play. The inner surface (55) of the brake piece (2) is formed in an arc shape so that it can tightly contact the circumferential surface of the shaft portion (2) in the adjustment shaft diagram. The brake piece ■ is fitted into the enlarged hole (31a) surrounded by the cam surface (51), and the shaft portion □ of the adjustment shaft □□□ is fitted into the hole (5) surrounded by the brake piece ■.
6) and is fitted into the ring (52), and the lever (53) passes through a window (57) formed in the rectangular parallelepiped portion α of the sliding body αQ and protrudes outward from the plane @. Lever (53
) can swing between both ends (58) and (59) of the window (57), and when (53) is in contact with the - end (58) of the window (57), the brake is applied. One wheel is in a neutral state with its outer surface (54) not in contact with the cam surface (51), and the inner surface (55) of the brake piece is not pressed against the adjusting shaft, so that the adjusting shaft is in a non-braking state. Rotate the lever (53) in the four directions of the arrows until it hits the other end (59) of the window (57).
The outer surface (54) of the brake piece (2) is pressed by the cam surface (51), and the adjustment shaft □□□ is tightly bound by the inner surface (55), resulting in a braking state. The coil spring (60) is fitted around the outer periphery of the brake piece ■, one end (61) of which is hooked onto the lever (51), and the other end (62) is hooked onto the end (SS) of the window (57). It is hooked and constantly applies a rotational force in the direction of braking between the brake pieces to maintain the braking state in the adjustment shaft diagram.

The adjustment shaft (to) has a slot (not shown) on its lower end surface, and is rotated by inserting the cutting edge of a screwdriver into this slot. The rotation of the adjustment shaft is controlled by a lever (57) that provides braking force to the shaft.
(in the opposite direction to arrow A), the torsional force of the torsion spring α9 will increase if the adjusting shaft ■ is turned counterclockwise C2, and if it is turned clockwise the torsional force will be increased. is reduced. Incidentally, the torsion spring α9 can be unwound by simply releasing the braking force on the adjustment shaft (2). In this way, the torsion force of the torsion spring (2) is adjusted to be properly balanced with the shoji.

As a braking means that automatically applies a braking force to the window shoji according to its tilting C, a horizontal groove (65) is formed in the rectangular parallelepiped part α plane of the sliding body αθ, and both ends of the groove are Both sides of the plane α9 (=open) are opened, and the central part of the connection (65) communicates with the bearing hole t3+.A brake member (66) is installed in this groove (55), and the brake member is connected to the rotating shaft (
(goods) rotation follows the braking position. Braking member (66)
As shown in Figure 7C2, there is a rectangular parallelepiped part (67) and a right triangular braking part (68) integrally protruding from both sides of the rectangular parallelepiped part (67).
), and the rectangular parallelepiped portion (67) has an arcuate surface (69) that fits into the cylindrical portion Q8 of the sliding body Oe, and an arcuate surface (71) that fits into the flange (70) of the rotating shaft (C). , has a flat cam receiving surface (72). Rotation axis position → is the circumferential surface (7
3), a cam surface (75) formed by a flat surface (74) that is partially cut out, and a flange (76) at the rear end of the flat surface (74). The cam surface (75) of the rotating shaft (C) engages with the cam receiving surface (72) of the braking member (66), causing the braking member (66) to move up and down in accordance with the rotation of the rotating shaft force. The flange (76) of the rotating shaft (goods) is the cam receiving surface (72)
It engages with the back surface of the rotary shaft (c) and holds the rotating shaft (c) so that only rotation is possible.

The braking part (68) has an oblique sliding surface (77) and a vertical braking surface (78). The sliding surface (77) is a groove (65)
It engages with the diagonal guide surface (79) at the back of the brake member (6
6) is pushed forward as it rises, and guided backwards as it descends. The braking surface (78) is the braking member (6
6) is in the lowered position, the sliding groove of the sliding body 0θ (
The vertical frame (4) is located inward of one sliding surface (80) of 1).
flange]ll lightly or not at all.

When the braking member (66) rises, the braking surface (78)
Frame (4+ hula.

The sliding body Oe is pressed against the shaft Qυ, and a braking force is applied to the sliding body Oe to stop it. As a result, when the shoji (2) is tilted from the vertical position to the horizontal position, the braking force is applied to the shoji (2) and the shoji (2) is held in the horizontal position.

The shoji (1) and (2) are provided with locking means on their upper frames (82) and (82), and by locking the means, the shoji is prevented from rotating around the rotation axis (c) and unlocked. C2 allows the shoji to rotate. A locking member (83) serving as a locking means is a case body (84) and a bottom cover (83) that closes the bottom opening surface of the case body (84).
5), a lock rod (87) slidably inserted into the case, and a compression coil spring (88) that urges the lock rod (87) in the projecting direction. Equipped with: The case body (84) and bottom cover (85) are screwed together (89)
and the upper stile (S2) is secured with screws (90).

The lock rod (88) has a long hole (91), a recess (92) and a knob (93). The long hole (91) has screws (89), (9
0) to determine the travel length of the lock rod (88),
The recess (92) is fitted with a spring (88), one end of which engages with the wall of the recess (92), and the other end engages with the bottom cover (
The lock rod (87) is engaged with the bent piece (94) of the lock rod (85).
) to stand out. The end surface (95) of the lock rod (87) is formed in an arc shape, and the end surface fits into the cylinder (9) and moves up and down with the shoji (1) and (2) using the cylinder as a guide surface. This lock (87) is located at the flange Qυ, 2 of the vertical frame (4) of the window frame.
1) and prevents the shoji (1) and (2) from tilting. The knob (93) is the elongated hole (96) in the case body (84).
The locking lever (87) protrudes upwardly from the locking lever and retracts the locking lever (87) to the retracted position. At its retreat, the locking rod (87) is attached to the vertical frame of the window frame (
4) moves outward from the engagement position with the flange Qυ and becomes unlocked, allowing the shoji (1) and (2) to tilt.

The outer shoji (1) may be a fixed type that cannot be moved up or down or tilted, and the center of rotation of the shoji (1), (2) may be at the upper end of each shoji instead of the lower end, or may be midway between the upper and lower ends. The rotating direction of the shoji may also be tilted outward instead of tilting inward.

〔Effect of the invention〕

The present invention provides an adjustment shaft for rotating a torsion spring as a means for adjusting the torsion force of a torsion spring suspended with a window shoji.
It is configured to apply braking force by pressing one brake wheel with the cam surface (51), and to release the push of the brake piece with the cam surface to release the braking on the adjustment shaft. To surely, easily and lightly adjust the suspension force of a balancing means for a vertically movable window, and to securely maintain the suspension force over a long period of time. The present invention further includes a braking means that automatically brakes the sliding body 0θ that connects the window shoji to the suspension means according to the forward or backward tilting of the window shoji, so that the balance of the window shoji is aligned with the vertical plane. Conveniently held on any horizontal surface.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view of the window, FIG. 4 is a sectional view taken along the line ■-■ in FIG. 1- of omitted Figure 2
Figure 1 is a sectional view taken along the line IV-IV in Figure 3 showing the state in which the inner shoji is folded inward, and Figures 1 and 6 are the sliding body, torsion spring adjustment means, and drowning body. FIG. 7 is a sectional view taken along the line ■-■ in FIG. 1, FIG. 2 is an exploded perspective view showing the adjustment means for torsion springs, and FIG. 1--■ sectional view in the figure, Figure 1O is an exploded perspective view showing the braking means for the sliding body, Figure 1/ is the X in Figure 7.
I-XI line sectional view, 1st. l! The figure is ■-Xll in Figure 3.
FIG. 2 is a cross-sectional view of a gland. In the figure, (1) and (2) are window shoji, (3) is window frame, (4) is vertical frame, (5) is guide groove, (61 and (7) are hanging members, (8) is connection pin, (9) is cylinder, αO is oak), Ql
) is a spiral rod, 00 is a torsion spring, Oe is a sliding body, (to)
is the sliding groove, 0υ is the flange, (c) is the rotating shaft, (to) is the connecting arm, (c) is the vertical stile, (to) is the lower stile, ■ is the adjustment shaft, and the figure is the brake piece, (51) is the cam surface, (52) is the rotating ring,
(53) is a lever, (60) is a coiled spring, (66) is a braking member, (72) is a cam receiving surface, (75) is a cam surface, (7
7) is the sliding surface, (78) is the braking surface, (7) is the guide surface,
(82) is the upper frame, (83) is the locking member, (86) is the case, (87) is the lock lever, (88) is the compression coil spring, (9
3') is a knob.

Claims (1)

[Scope of Claims] 1. Balancing means having a torsion spring that balances the window sash and stops the window sash at an arbitrary position; the window sash is connected to the balancing means, and the window sash is fixed vertically on the window frame. A sliding body guided up and down along the frame, a means built into the sliding body for adjusting the balancing force of the torsion spring, and the adjusting means includes a shaft for adjusting the balancing force by twisting the torsion spring, and the adjustment means. A vertically movable window having a braking piece that brakes the shaft and maintains a balanced force, and a cam surface that presses the braking piece against the adjusting shaft for braking or separates it from the adjusting shaft for braking release by rotation in both directions. suspension device. 2. The adjustment shaft is rotatably inserted into the vertical hole of the sliding body, the cam surface is formed at the lower part of the vertical hole, and the brake piece is inserted between the adjustment shaft and the cam surface, and the adjustment shaft erected on a rotating ring rotatably fitted to the rotating ring, the rotating ring is provided with a lever for rotating the rotating ring in the direction of releasing the braking force;
2. The vertically movable window balancing device according to claim 1, further comprising a spring that constantly biases the rotary ring in the braking direction. 3. The vertical movement according to claim 2, wherein the brake piece is divided into a plurality of pieces and is configured to surround an adjustment shaft, and the cam surface is also provided in a plurality of pieces so as to correspond to each of the divided brake pieces. Window balancing device. 4. The vertically movable window balancing device according to claim 3, wherein the cam surface of the vertical hole of the sliding body and the surface of the brake piece that contacts the cam surface are formed in an arc shape whose radius increases as it progresses in the circumferential direction. . 5. The balancing means further includes a tube fixed to the vertical frame of the window frame, surrounding the torsion spring and fixed to the upper end of the spring;
a nut rotatably connected to the cylinder and fixed to the lower end of the torsion spring; and a nut inserted into the torsion spring so as to be movable up and down, threadedly engaged with the nut, and integrally rotatably connected to the adjustment shaft. 5. The balance of the vertically movable window according to claim 4, further comprising a spiral rod, the spiral rod tightening the torsion spring through a nut when the spiral rod is lowered, and being raised through the nut when the torsion spring is unwound. Device. 6. A balancing device for a vertically movable window according to claim 5, wherein said sliding body has a built-in braking means for automatically braking said sliding body when the window shoji is rotated in a vertical direction and a horizontal direction. 7. The braking means for the sliding body includes a rotating shaft that is incorporated in the sliding body and connected to the window sash, and a braking means that is incorporated in the sliding body and controls the rotation of the rotating shaft when the window sash is tilted from the vertical direction to the horizontal direction. 7. The balancing device for a tiltable vertically moving window according to claim 6, further comprising a braking member that applies a braking force to the sliding body in accordance with the above. 8. The rotating shaft has a cam surface, the braking member has a cam receiving surface that receives the cam surface, and the rotation of the rotating shaft causes the braking member to move up and down, and the sliding body also has an oblique guide surface. The braking member is provided with a sliding surface that slides diagonally on the guide surface, and the braking member is at a braking position where it is pressed against the vertical frame of the window frame when moving up and down, and at a position where the pressing is released. 8. The balancing device for a vertically movable window according to claim 7, wherein the vertically movable window balancing device also reciprocates in the lateral direction. 9. The balancing device for a vertically movable window according to claim 8, further comprising a locking means provided on the upper stile of the window sash to prevent the window sash from tilting. 10. The locking means includes a case fixed to the upper stile of the window sash, a lock lever slidably incorporated into the case, and a spring biasing the lock lever to a protruding position, 10. The vertically movable window according to claim 9, wherein the rod has a surface that is slidably fitted with the cylinder of the balancing member as a guide surface, and is held in a locked state by being held in a guide groove of a vertical frame of the window frame. balancing device.