JPH0730651B2 - Vertical moving window balancing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a balancing device for vertical moving windows.

[Conventional technology]

It is known that a vertical window sliding device uses the torsional force of a torsion spring for suspension with a window shoji, and the adjustment shaft is rotated in one direction by a ratchet mechanism to adjust the torsional force. There are also those in which the braking force is applied to the adjusting shaft by the binding force of the coil-shaped brake spring.

Also, in a case of rotating a window shoji of a vertical moving window from a vertical direction to a horizontal direction, a balancing device having a balancing means for the window shoji and a means for adjusting a balancing force of the means, the balancing means and the window shoji. 2. Description of the Related Art There is known a balancing device having a braking means for applying a braking force to the window shoji during the tilting and fixing the window shoji at the position.

[Problems to be Solved by the Invention]

Among the above-mentioned conventional balancing devices, a device using a ratchet mechanism is convenient for winding and tightening a torsion spring, but it cannot be unwound and the twisting force cannot be properly adjusted. The one that uses the brake spring can both tighten and unwind the torsion spring, but the torsion spring naturally rewinds due to the uncertainty of the braking force of the brake spring and the reduction of the braking force due to the weakening of the brake spring. As a result, the twisting and unwinding operations of the torsion spring cannot be performed lightly and are heavy due to the brake spring, and the brake spring is not easily assembled.

Further, in the case where the window shovel tilts back and forth in addition to the vertical movement and which has the suspension means but lacks the braking means, the balance is broken when the window shoji which is in balance with the balancing means is tilted. The lifting force of the suspending means becomes relatively larger than the pulling down force of the shoji, so that the shoji rises, and it is equipped with the balancing means and the braking means but lacks the adjusting means, and the latter is the adjusting means. However, since the balancing means and the shoji screen are assembled in the window frame, the balancing means cannot be adjusted and the change in the force of the balancing means due to use cannot be adjusted. As described above, each of the conventional balancing devices has a problem.

INDUSTRIAL APPLICABILITY According to the present invention, the adjustment of the suspension force of the vertically moving window balancing means can be performed reliably and easily, and the suspension force can be maintained reliably over a long period of time. The window screen and the balancing means can be assembled in the window frame, and when the window screen is tilted, a braking force is automatically applied to the screen screen to maintain the balance of the window screen. It is intended to provide a convenient balance device that leans.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention connects a window shoji to a suspension means having a torsion spring that suspends a window shoji, and connects the window shoji to the balancing means to move the window shoji up and down along a vertical frame of the window frame. The sliding body for guiding, and means for adjusting the balance force of the torsion spring incorporated in the sliding body, the adjusting means includes an adjusting shaft for suspending force of the torsion spring, and a braking piece for the adjusting shaft. , A cam surface for operation of the braking piece.

The present invention further comprises braking means for automatically braking the sliding body according to the forward or backward tilting of the window shoji.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

The outer window screen (1) and the inner window screen (2) are the vertical frame (4) of the window frame (3).
It moves up and down along the guide grooves (5), (5) (Fig. 4) of Fig. 4 to close the upper part of the window on the outer side and the lower part of the window on the lower side.
Each window shoji (1), (2) is suspended by the vertical frame (4) in a balanced state by the balance members (6), (7) (Fig. 2) used as suspension means. Is stopped at the position.

The balance members (6) and (7) have the same structure except that they have the same dimensions so that they fit inside and outside shoji (1) and (2).
Those for (2) will be mainly described. The same applies to other members.

The suspension members (6) and (7) extend vertically and the upper end is a vertical frame.
Tube (9) connected to (4) by pin (8) (Figs. 2 and 3)
And a nut (10) rotatably connected to the cylinder and the lower end.
A spiral rod (11) that is vertically movably inserted into the cylinder and has its lower end penetrating the nut (10) in a threaded state and protruding outward from the lower end of the cylinder (9); The upper end (13) wound around the spiral rod (11) and fixed to the tube (9) via the spring stopper member (12) and the lower end (14) fixed to the nut (10) in (9). It has a torsion spring (15). When the spiral rod (11) descends, the nut (10) is rotated to wind and tighten the torsion spring (15), and when the torsion spring (15) is unwound, the nut (10) is reversed to rotate the spiral rod (11). ) Work to raise. Spiral rod (1
Connect (1) to the shoji (1) and (2) to connect the torsion spring (15) to the shoji.
By applying a twisting force that balances (1), (2) and its maximum rising position, the torsion spring (15) can always be suspended from the shoji to make the shoji stand still at an arbitrary position. It can be moved up and down with a small force.

The sliding body (16) is mainly composed of a substantially rectangular parallelepiped portion (17) and a tubular portion (18) integrally formed with the portion, and the guide groove (5) of the vertical frame (4) of the window frame is formed. ) Is slidably installed in.

The rectangular parallelepiped part (17) has vertical sliding grooves (20) formed on mutually parallel planes (19) on both sides thereof, and the sliding grooves are vertical frames.
Flange (21) looking into the opening of the guide groove (5) of (4) (No. 11
(Fig.) Slidably fitted to move the sliding body (16) up and down along the guide groove (5). A plane (22) orthogonal to both side planes (19) of the rectangular parallelepiped portion (17) has a bearing hole (23) (Fig. 7) below it, and a rotary shaft (24) is rotatably provided in the bearing hole. The connecting arm (26) is fitted into the connecting hole (25) of the rotating shaft, and the connecting arm and the rotating shaft are connected so as to rotate integrally. Connecting arm
(26) is fixed by incorporating it from the lower end of the vertical frame (27) of the shoji (2) to the lower frame (28), and the shoji is positioned vertically from the vertical position to the indoor side with the rotation axis (24) as the center of rotation. Is tilted up to. Due to the tilting, the outer surface of the glass (29) of the shoji (2) can be safely and easily cleaned indoors.

The tubular portion (18) has a bearing hole (31) penetrating in the vertical direction and an enlarged hole (31a) (Fig. 7) connected to the bearing hole, and the torsion spring is provided in the bearing hole and the enlarged hole. An adjusting shaft (32) used as an adjusting means for (15) is rotatably inserted, and a shaft portion (33) at the upper end thereof protrudes upward from the tubular portion (18) and a shaft portion (34) at the lower end. A part of) protrudes below the cylindrical portion (18). The adjusting shaft (32) has the same diameter from the shaft portion (35) fitted in the bearing hole (31) of the tubular portion (18) to the shaft portion (33) at the upper end of the shaft portion (35). Shaft part (34) of the bearing hole (31) and shaft part
(35) It has a larger diameter (Fig. 7). Insert the adjusting shaft (32) into the bearing hole (31) from below,
The step (36) between 4) and (35) abuts the step (37) between the bearing hole (31) and the enlarged hole (31a) to stop the upward movement of the adjustment shaft (32), Adjustment shaft corresponding to the position of the upper edge (38) of the hole (31)
Fit the snap ring (40) in the annular groove (39) of (32) to prevent the adjustment shaft (32) from moving downward, and rotate the adjustment shaft (32) into the bearing hole (31) only. Assemble as possible. The upper end of the adjusting shaft (32) is provided with cross-shaped grooves (41) and (42), and one groove (41) has a spiral rod.
The lower end of (11) is inserted, and the set screw (43) is inserted into the hole (44) of the spiral rod.
And the adjusting shaft (32) through the screw holes (45) to connect with each other, and the other groove (42) is fitted with a pin (4) mounted at a right angle to the spiral rod (11).
6) is inserted. As a result, the adjusting shaft (32) becomes a spiral rod (11).
The slide body (16) and
The (16) supports the shoji (2) via the rotary shaft (24) and the connecting arm (26), and the shoji (2) is suspended by the balancing member (7).

The adjusting means for adjusting the torsional force of the torsion spring (15) of the balance member (7) includes, in addition to the adjusting shaft (32), a braking piece (50) for giving a braking force to the adjusting shaft, and the braking piece. It has a cam surface (51) to be pressed against. The braking pieces (50) are integrally erected on the rotating ring (52) at equal intervals so as to surround the adjusting shaft (32), and levers (53) extend from the rotating ring in the radial direction. The cam surface (51) is the enlarged hole (31
On the inner peripheral surface of a), four pieces are formed at equal intervals so as to correspond to the braking pieces (50). The cam surface (51) and the outer surface (54) of the braking piece (50) that comes into contact with the cam surface are formed in an arc shape whose radius increases in the circumferential direction, and the arc length of the outer surface (54) is the cam length. It is shorter than that of the surface (51) and can swing with relative play. The inner surface (55) of the braking piece (50) is formed in an arc shape so that it can come into close contact with the peripheral surface of the shaft portion (34) of the adjusting shaft (32). The braking piece (50) is fitted in the enlarged hole (31a) surrounded by the cam surface (51), and the shaft portion (34) of the adjusting shaft (32) is surrounded by the braking piece (50) (56). ) And rings (52)
The lever (53) is fitted inside the rectangular parallelepiped part of the sliding body (16).
It penetrates through the window (57) formed in (17) and projects outward from the plane (22). The lever (53) is attached to both ends (5
It is possible to swing between 8) and (59), and the lever (53) is
When it hits one end (58) of 7), the brake piece (50)
The outer surface (54) is not in contact with the cam surface (51) and is in a neutral state, the inner surface (55) of the braking piece is not pressed against the adjusting shaft (32), and the adjusting shaft is in a non-braking state. When the lever (53) is rotated in the direction of the arrow (A) until it abuts against the other end (59) of the window (57), the outer surface (54) of the braking piece (50) is pushed by the cam surface (51). The adjustment shaft (32) is tightly bound to the inner surface (55) and the braking state is established. The coil spring (60) is fitted on the outer circumference of the braking piece (50), one end (61) of which is hooked on the lever (51) and the other end (62) of which is on the end (58) of the window (57). It is hooked and constantly gives the braking piece (50) a rotational force in the direction to brake,
The braking state of the adjusting shaft (32) is maintained.

The adjusting shaft (32) has a groove hole (not shown) in its lower end surface, and the blade tip of a driver is inserted into this groove hole to rotate. The adjustment shaft (32) is rotated in a state where the braking force on the adjustment shaft (32) is released by the operation of the lever (53) (the direction opposite to the arrow A), and the adjustment shaft (32) is rotated counterclockwise. Twist spring
The twisting force of (15) increases, and turning it clockwise reduces the twisting force. The unwinding of the torsion spring (15) should be done by adjusting the adjustment shaft (3
It can be done by simply releasing the braking force for 2). In this way, the torsional force of the torsion spring (32) is adjusted to properly balance with the shoji screen.

A flat surface (22) of the rectangular parallelepiped part (17) of the sliding body (16) is provided as a braking means for automatically applying a braking force to the window shoji by following its tilting.
A lateral groove (65) is formed in each side, both ends of which are opened to the flat surfaces (19) on both sides of the sliding body, and the central portion of the groove (65) communicates with the bearing hole (23). The braking member (6
6) is incorporated so that the rotation of the rotary shaft (24) causes the braking member to follow the braking position. As shown in FIG. 10, the braking member (66) comprises a rectangular parallelepiped portion (67) and substantially right-angled triangular braking portions (68) provided on both sides of the rectangular parallelepiped portion (67), and the rectangular parallelepiped portion (67) is slidable. An arcuate surface (69) fitted to the tubular portion (18) of the moving body (16), an arcuate surface (71) fitted to the flange (70) of the rotary shaft (24), and a horizontal plane cam receiving surface ( 72). The rotary shaft (24) has a cam surface (75) formed of a circumferential surface (73) and a flat surface (74) with a part thereof cut out, and a flange (76) at the rear end of the flat surface (74). Have. Cam face of rotating shaft (24) (7
5) is engaged with the cam receiving surface (72) of the braking member (66),
The braking member (66) is moved up and down according to the rotation of the rotating shaft (24). The flange (76) of the rotary shaft (24) is engaged with the rear surface of the cam receiving surface (72) to hold the rotary shaft (24) rotatably only. The braking portion (68) has an oblique sliding surface (77) and a vertical braking surface (78). The sliding surface (77) meshes with the slanting guide surface (79) at the back of the groove (65) to push the braking member (66) forward when it rises and guide it backward when it descends. The braking surface (78) is located inside the one sliding surface (80) of the sliding groove (20) of the sliding body (16) when the braking member (66) is in the lowered position, and is a vertical frame. Lightly touch or not touch the flange (21) of (4). When the braking member (66) rises, the braking surface (78) is pressed against the flange (21) of the vertical frame (4) to apply a braking force to the sliding body (16) and stop it. As a result, when the shoji (2) is tilted from the vertical position to the horizontal position, the braking force is once held at the horizontal position without disturbing.

The shoji screens (1) and (2) are provided with locking means on their upper frames (82) and (82), and the locking of the means prevents the shoji screens from rotating around the rotation axis (24), and unlocks them. Allow rotation of shoji. The locking member (83) as the locking means is the case body (84).
And a case (86) composed of a bottom lid (85) closing the opening surface of the bottom, a lock rod (87) slidably inserted in the case, and a protruding direction of the lock rod (87). It has a compression coil spring (88) for urging. The case body (84) and the bottom cover (85) are connected with a screw (89), and the upper frame (8) is connected with a screw (90).
It is stuck to 2). The lock rod (87) has a long hole (91), a recess (92) and a knob (93). The long hole (91) holds screws (89) and (90) to define the stroke length of the lock rod (87), and the recess (92) has a spring (88) incorporated therein and one end of the spring is recessed ( It engages with the wall surface of 92) and the other end engages with the bent piece (94) of the bottom lid (85), and the lock rod (87) is projected. The front end surface (95) of the lock rod (87) is formed in an arc shape, and the front end surface fits into the tube (9) and moves up and down together with the shoji (1) and (2) using the tube as a guide surface. This lock rod (87) is sandwiched between the flanges (21) and (21) of the vertical frame (4) of the window frame, and the shoji (1),
Prevent the tilting of (2). The knob (93) is the case body (8
It protrudes upward from the long hole (96) of 4), and has a locking rod (87).
Retract to the retracted position. Upon retreating, the lock rod (87) moves outward from the position where it engages the flange (21) of the vertical frame (4) of the window frame, and becomes unlocked, and the shoji (1), (2) Allows tilting.

The outside shoji (1) may be a fixed type that cannot move up and down or tilt, and the center of rotation of the shoji (1) and (2) may be the upper end instead of the lower end, or the upper and lower middle. The direction of rotation of the shoji screen may be other than inward and outward.

〔The invention's effect〕

The present invention provides an adjusting shaft (3) for rotating a torsion spring as a means for adjusting the torsional force of the torsion spring (15) that suspends the window shoji.
2) The braking piece (50) is pressed against the cam surface (51) to give a braking force, or the pressing of the braking piece can be released by the cam surface to release the braking on the adjustment shaft. Therefore, the adjustment of the suspending force of the vertically moving window balancing means can be performed reliably, easily, and lightly, and the suspending force can be maintained even over a long period of time. The present invention further comprises a braking means for automatically braking the sliding body (16) connecting the window shoji to the suspending means according to the forward or backward tilting of the window shoji, so that the balance of the window shoji is balanced. Is convenient because it can be maintained on both vertical and horizontal surfaces.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a front view of a window, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG. Omitted Figure 2 III
-III line sectional view, FIG. 4 is a sectional view taken along line IV-IV of FIG. 3 showing a state in which the inner shoji is tilted inward, and FIGS. 5 and 6 are a sliding body, a torsion spring adjusting means and a sliding member. FIG. 7 is a perspective view showing an assembled state with a moving means braking means, FIG. 7 is a sectional view taken along line VII-VII in FIG. 5, FIG. 8 is an exploded perspective view showing an adjusting means for a torsion spring, and FIG. 7 is a cross-sectional view taken along the line IX-IX, FIG. 10 is an exploded perspective view showing the braking means for the sliding body, and FIG. 11 is XI- of FIG.
FIG. 12 is a sectional view taken along line XI, and FIG. 12 is a sectional view taken along line XII-XII in FIG. In the figure, (1) and (2) are window shoji, (3) is a window frame, (4) is a vertical frame, (5) is a guide groove, (6) and (7) are suspension members, and (8) is Connecting pin, (9)
Is a cylinder, (10) is a nut, (11) is a spiral rod, (15) is a torsion spring, (16) is a sliding body, (20) is a sliding groove, (21) is a flange, and (2
4) is a rotating shaft, (26) is a connecting arm, (27) is a vertical frame, (28) is a lower frame,
(32) is the adjusting shaft, (50) is the braking piece, (51) is the cam surface, (52)
Is a rotating ring, (53) is a lever, (60) is a coil spring,
(66) is a braking member, (72) is a cam receiving surface, (75) is a cam surface, (77) is a sliding surface, (78) is a braking surface, (79) is a guide surface, and (82) is an upper frame. , (83) is a locking member, (86) is a case, (87) is a locking rod, (88) is a compression coil spring, and (93) is a knob.

Claims (9)

[Claims] 1. A balance means having a torsion spring that balances the window shoji to make the window shovel rest at an arbitrary position, and the window shoji is connected to the balancing means, and the window shoji is arranged along a vertical frame of the window frame. And a means for adjusting the balance force of the torsion spring incorporated in the sliding body, and the adjusting means includes a shaft for twisting and adjusting the torsion spring, and a braking for the adjusting shaft. And a cam surface for holding the balance force to hold the balance force, and a cam surface for pressing the braking piece against the adjusting shaft for braking or separating from the adjusting shaft for releasing the braking by rotating the braking piece in both directions. Is rotatably inserted in the vertical hole of the sliding body, the cam surface is formed in the lower part of the vertical hole, and the braking piece is inserted between the adjusting shaft and the cam surface and rotatably fitted to the adjusting shaft. It is erected by the combined rotating ring and rotates it in the braking force releasing direction. Lever is provided to further the adjustment means balancer vertical movement window having a spring which always urges the rotating ring in the braking direction. 2. The braking piece according to claim 1, wherein the braking piece is divided into a plurality of pieces so as to surround the adjustment shaft, and the cam surface is also provided with a plurality of pieces so as to correspond to the divided braking pieces. Balancing device for vertical moving windows. 3. The vertical moving window according to claim 2, wherein the cam surface of the vertical hole of the sliding member and the surface of the braking piece contacting the cam surface are formed in an arc shape whose radius increases as it advances in the circumferential direction. Balancing device. 4. The cylinder further fixed to the vertical frame of the window frame and surrounding the torsion spring and fixed to the upper end of the spring, and the lower end of the torsion spring rotatably connected to the cylinder. And a spiral rod which is vertically movably inserted into the torsion spring, is screwed with the nut, and is integrally rotatably connected to the adjusting shaft. 4. The vertical window balancing device according to claim 3, wherein the torsion spring is wound and tightened via a nut, and the torsion spring is unwound to raise the torsion spring. 5. The balance of the vertical moving window according to claim 4, wherein the sliding body has a braking means incorporated therein which automatically brakes the sliding body when the window shoji is rotated from the vertical direction to the horizontal direction. apparatus. 6. A braking shaft for the sliding body is incorporated into the sliding body and is connected to a window shoji, and rotation when the window shovel is built into the sliding body and tilts from a vertical direction to a horizontal direction. 6. The vertical window balancing device according to claim 5, further comprising a braking member that applies a braking force to the sliding body by following the rotation of the shaft. 7. The rotating shaft has a cam surface, the braking member has a cam receiving surface for receiving the cam surface, and the rotation of the rotating shaft moves the braking member up and down to guide the sliding member obliquely. And a braking position where the braking member is pressed against the vertical frame of the window frame when the braking member is moved up and down, and the pressing is released. 7. The vertical window balancing device according to claim 6, which reciprocates laterally between the different positions. 8. A balancing device for a vertically moving window according to claim 7, further comprising a locking means provided on the upper frame of the window shoji to prevent tilting of the window shoji. 9. The locking means comprises a case fixed to the upper frame of the window shoji, a lock rod slidably incorporated in the case, and a spring for urging the lock rod to a projecting position. 9. The lock rod according to claim 8, wherein the lock rod has a surface slidably fitted with the cylinder of the balancing member as a guide surface, and is locked by being sandwiched by a guide groove of a vertical frame of the window frame. Balancing device for vertical moving windows.