JPH0616103Y2 - Double glass window blind lifting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improved technique of an apparatus for vertically moving a blind housed between two window glasses from outside the window frame.

[Prior art and its problems] The structure of the double-glazed window in which a blind that can be raised and lowered is housed between two window glasses that are fitted into the window frame at a distance,
For example, it is disclosed in Japanese Utility Model Laid-Open No. 62-105297.

In this double-glazed window, in order to raise and lower the blind inside the window frame from the outside, the operation member is supported so that it can move up and down along the vertical frame of the window frame, and it moves downward from the upper frame along the vertical frame. One end of the blind raising / lowering string, which is guided by the above, is folded back upward through the operation member and fixed to the upper portion of the window frame. With this configuration, the amount of expansion and contraction of the string for raising and lowering the blind doubles the amount of movement of the operating member, so the blind can be opened and closed with a small amount of operation.

By the way, the operation member is configured to slide along a groove formed in a vertical frame, and a knob for lifting operation is screwed into a male screw protruding from the sliding member to the outside of the frame. In other words, it is possible to adjust the vertical position of the blind by moving the sliding member up and down when the knob is loosened, and after adjusting in this way, tighten the knob to lock the sliding member vertically. Then, the blind position is fixed.

However, in such a lifting device, the operation of loosening or tightening the knob is troublesome, and there is a problem that the blind position cannot be reliably fixed if the knob is not tightened sufficiently. In addition, since the sliding member has a structure fitted in the groove, there is a problem that dust is caught in the fitting part to make movement difficult and the operability is deteriorated.

On the other hand, the present applicant has devised an elevating device as shown in FIG. This is a rod-shaped holding member (3) by a screw (2) along a vertical member (1) which constitutes a part of a vertical frame.
The operating member (4) is held by the holding member (3) so as to be vertically movable. Pulley (5) for passing a blind lifting string (not shown) through the operating member (4)
And an operating lever (6) for engaging and disengaging the holding member (3) and for raising and lowering the blind. The operating lever (6) is provided so as to project to the outside from the operating member (4) located inside the vertical frame. In the figure, the operating lever (6) is folded to fix the operating member (4) to the holding member (3). Shows the closed state.

The holding member (4) is formed with a number of rack-like notches along its longitudinal direction, and when the operating lever (6) is folded as shown in the drawing, the claws provided inside the operating member (4) The operating member (4) is fixed to the holding member (3) by cutting into the notch by the force of the spring. For this reason, the operation member (4) does not move freely due to the weight of the blind, etc., and the position can be firmly fixed.

On the other hand, when the operation lever (6) is raised toward you, the claw is separated from the notch, so that the operation member (4) can be freely moved up and down. Therefore, the operation of raising and lowering the blind can be performed extremely easily. Further, since the operating member (4) is guided by the rod-shaped holding member (3) located in the inner part of the vertical frame, dust and the like are not easily attached.

However, in such a lifting device, as described above, since the operating member (4) is fixed based on the engagement of the claw and the notch, the operation lever (6) is operated to move the operating member (4). If the operation is performed halfway, the operating member (4) remains with the claw not completely detached from the notch.
Is forced to slide on the holding member (3), which may cause wear of the claws and the holding member (3) and impair durability.

Further, since the spring force of the claw acts on the notch of the holding member (3) in the interlocking direction, deterioration of the spring directly leads to a decrease in the holding force, or the operating member (4) When the slide member is slid, the notch on the holding member (3) vibrates, and a good feeling of operation cannot be obtained.

The present invention has been made in view of such a conventional problem, and it maintains the simple operability of the operation member, and raises and lowers the blind window of the double-glazed window that has both a reliable fixing function and a smooth operation feeling. The purpose is to provide a device.

[Means for Solving the Problems] In order to achieve the above object, according to the present invention, a blind is housed between an inner glass and an outer glass that are fitted into a window frame with a predetermined space therebetween, and the blind is raised and lowered. In a double-glazed window in which an operating member connected to a string is freely moved along the vertical frame of a window frame, a collet that elastically expands in a free state and this collet is moved based on the axial movement. A chuck device having a collar for tightening or releasing and a spring for urging the collar in the direction of tightening the collet is provided on the operating member, and a rod-shaped member is tightened or released by the collet through the chuck device. The holding member of is attached along the vertical frame of the window frame, and the operation member is provided with a foldable operation lever along the front surface of the vertical frame. The chuck device is operated to the position where the collet is opened when it is caused by

[Operation] In the above-mentioned double glass window blind lifting device according to the present invention, when the operation lever is folded along the vertical frame, the chuck device retracts the collet into the collar by its spring force. The collet holds a rod-shaped holding member from the surroundings to fix the operation member.

The force that the collet holds the holding member at this time is the spring force that the collar surrounding the collet amplifies and converts from the axial direction to the radial direction by the wedge action, so even a slight spring force can provide a strong tightening force. To be Therefore, the fixing function of the operating member is not impaired even if the spring force slightly deteriorates due to changes over time, and the stable fixing function is exhibited for a long period of time.

On the other hand, when moving the operation member in the fixed state when moving the blind up and down, it is only necessary to raise the operation lever folded along the vertical frame. As a result, the collet projects from the collar and expands elastically to open the holding member, so that the operating member can be freely moved up and down along the holding member.

The holding force of the collet at the time of tightening is strong as described above, and it is possible to obtain a sufficient holding force only by the frictional force of the collet gripping portion without providing the holding member with engaging means such as notches. Rather, it is preferable that the surface of the holding member is smoothly finished from the viewpoint of the holding action of the collet. Therefore, resistance and catching when the operating member is slid can be eliminated, and an extremely smooth operation feeling can be obtained.

In addition, the collet does not depend on mechanical engagement, but exerts a holding function by the frictional force between the collet and the holding member.
If the collet is loosened a little, relative movement with the holding member becomes possible. Therefore, even if the raising operation of the operating lever is insufficient, the blind can be raised and lowered without any trouble. On the other hand, even when returning to the fixed state, the spring force of the chuck device acts to tighten the collet, so that even if the folding operation of the operation lever is insufficient, it can be securely fixed.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 show the overall construction of the blind lifting device according to the present invention.

In the figure, (11) is a double glass window frame, (13) is a holding member attached along the frame (11), and (14) is movably fitted to the holding member (13). Operating members, (15)
Is a pulley provided on the upper part of the operation member (14), (16) is an operation lever of the operation member (14), (17) is a chuck device incorporated in the operation member (14), and (18) is a vertical frame ( An adapter for attaching the holding member (13) to 11), and a blind lifting string (19).

Further, FIGS. 5 to 7 show the above-mentioned blind raising / lowering device as seen from the inside of the room such as the left-handed window (30a) and the right-handed window (3
This is an example of the structure when applied to a double-paned double-glazed window consisting of 0b).

First, the structure of this double-glazed window will be explained. In the figure, (31) is the inner screen of the window (30a) or (30b), (32)
Is also a lateral shoji, and these shoji (31), (32)
Has a frame (33) assembled in a rectangular shape from the left and right vertical frames (11) and the upper and lower frames (32), and the glass (34) is held on the inner peripheral portion thereof. The frame (33) of each shoji (31), (32) is fixed to the inner peripheral portion of one window frame (35) with a predetermined space therebetween, and a blind (36) is provided at the space. ) Is contained.

The blind (36) has a window frame (35) as shown in FIG.
A blind box (39) attached to the lower surface of the upper frame (37) via a bracket (38), and a large number of slats (40) suspended from the blind box (39).
And a rail member (41) at the lower end.

The lower end rail member (41) of the blind (36) is fixed to one end of the left and right strings (19) for raising and lowering the string (19).
The other end of the blind box (39) via the pulley (42) and the pulley (43) located above the vertical frame (11) to the lower part of the vertical frame (11). guided by,
It is fixed to the upper end of the inner shoji (31) by being turned upside down via a pulley (15) provided on the upper part of the operation member (14).

The left and right windows (30a) and (30b) are symmetrical, and the left window (30a) is on the left vertical frame (11), and the right window (30b) is on the right vertical frame (11). A blind lifting device including the above-mentioned operation member (14) is attached to the. Details are as shown in Fig. 6, and the window frame (3
Between the vertical member (44) which is the vertical frame of 5) and the indoor side wall of the vertical frame (11), a guide space portion (45) having a rectangular cross section corresponding to the planar shape of the operation member (14) is provided along the vertical direction. ) Is formed, and the blind lifting device shown in FIG. 1 is housed so that the operating member (14) can move up and down in the space (45).

The vertical mounting position of the blind lifting device is the lower half of the vertical frame (11) as shown in FIG. 5, and the operating member (14) is about half of the total lifting amount of the blind (36). Due to the stroke relationship, a vertical groove (46) having a length corresponding to the stroke is formed on the indoor side wall of the vertical frame (11), and the operation lever (16) of the operating member (14) is provided with the vertical groove (46). It is provided so as to project to the outside through the 46). In addition, in FIG. 5, (47) shows a knob for adjusting the slat angle of the blind (36).

In the double glass window structure, when the operating member (14) is located at the uppermost part of the vertical groove (46), the blind (36) is in a fully closed state in which the rail member (41) is fully lowered. As the operating member (14) is lowered from the state along the vertical groove (46), the string (19) connected to the operating member (14) is pulled and the blind (36) opens. At this time, the amount of expansion and contraction of the other end of the string (19), one end of which is fixed to the upper part of the window frame, is double the movement stroke of the operating member (14). The blind (36) is fully opened by moving it to the lower end.

The blind raising / lowering device according to the present invention controls the raising / lowering operation of such a blind (36), and the details will be described below with reference to FIG. 1 or FIG.

As shown in the figure, the holding member (13) is made of a metal rod-shaped material, and is attached to the vertical frame (11) via the adapters (18) at both upper and lower ends thereof. The adapter (18) is composed of an adapter body (18a) having a rectangular hollow cross section that is fastened to the vertical frame (11) with a screw (not shown), and an insert (18b) that is inserted into the adapter body (18a). . Insert the insert (18b) into the adapter body (18a) while holding the engaging part (13a) at the end of the holding member.
By tightening the screw (12) from the end of (b), the insert (18b) expands inside and is restrained inside the adapter body (18a). As a result, the adapter (18) is fixed to the end of the holding member (13).

The operating member (14) has a vertically long rectangular parallelepiped shape, and the pulley (15) is attached to the upper portion thereof as described above, and the insertion hole for inserting the chuck device (17) along one vertical side. (14a) is formed through.

As shown in FIG. 3, the chuck device (17) includes a hollow cylindrical collet (2) through which a holding member (13) freely slides.
1), a collar (22) of the same hollow cylinder that surrounds the collet (21), and a coil-shaped spring (23) that biases the collet (21) toward the collar (22) in the retreat direction. Consists of.

A male screw portion (22a) is formed around the upper portion of the collar (22), and the chuck device is inserted by tightening the female screw portion (14b) formed on the upper portion of the insertion hole (14a) from above. The (17) is fixed to the operating member (14).

The collet (21) housed in this collar (22) is a cylindrical collet body (21) that can slide freely inside the collar (22).
a) and a grip portion (21b) formed by dividing the upper end portion into three by axial dividing grooves. Grip (21b)
In the free state, as shown in FIG. 4, it is in a state in which it expands in a tapered shape due to its own elasticity, and in this state, it is separated from the holding member (13), and therefore, the chuck device (17) and the operating member ( 14) is free to slide with respect to the holding member (13). On the other hand, when the collet (21) is retracted downward with respect to the collar (22) as shown in FIG. 3,
The gripping portion (21b) is tightened because the peripheral tapered surface is narrowed by the upper end opening of the collar (22), and the holding member (13) is firmly held from the periphery.

The substantially lower half of the collar (22) is formed to have a diameter slightly larger than that of the collet body (21a). The spring is provided between the inner peripheral portion of the large diameter portion and the outer peripheral portion of the collet body (21a). Annular spring chamber (22b) for housing (23)
Is provided. On the other hand, a male screw portion (21c) is formed at the lower end of the collet (21), and the collet (21) is inserted from the upper end opening of the collar (22) to allow the spring (22b) to spring into the spring chamber (22b). The collet (21) is positioned inside the collar (22) by tightening the annular cap (24) from below on the male screw part (21c) in the state where the collet (21) is housed.

At this time, the collet (21) is urged to the state shown in the third drawing by being retracted downward by the tension of the spring (23) exerted between the upper end surface of the spring chamber (22b) and the cap (24). . In addition, the dimensions of each part are set so that the cap (24) protrudes somewhat from the lower end opening of the collar (22) in this state, and the protruding part of the cap (24) is resisted against the spring (23). By pushing it up, as described above, the grip (21) of the collet (21) is
b) is released from the restraint of the collar (22) and is in the expanded state.

Next, the operation lever (16) is provided to externally operate the operation of the chuck device (17). The operating lever (16) is rotatably supported by a pin (25) horizontally penetrating the operating member (14) at a lateral position of the cap (24) as shown in FIG. . The operating lever (16) is made of a metal plate-shaped material, and one end protruding outside the vertical frame (11) has a resin grip portion (16a) for operation and the other end. The fork part (16) has a bifurcated shape so that it contacts the bottom surface of the cap (24) without interfering with the holding member (13).
b) are provided respectively.

Normally, the operating lever (16) is in the position shown by the solid line where the grip (16a) is folded along the vertical frame (11) by the tension of the return spring (26) provided around the pin (25). Being energized. In this state, the chuck device (17) retracts the collet (21) by the spring force, that is, the collet (21) clamps the holding member (13) and fixes the operating member (14).

Then, from this state, pulling the grip portion (16a) toward you causes the operation lever (16) to move to the clockwise direction in the figure against the return spring (26) to some extent, and then the lever is positioned at the other end of the lever. The fork part (16b) has a cap (2
Abut from both sides on the bottom of 4) and push it up. When the operating lever (16) is completely raised to the position indicated by the imaginary line, the collet (21) that is interlocked with the cap (24) also rises as the cap (24) rises, and its grip (21).
b) is completely free from the collar (22),
Expanded by the elasticity of the collet itself, the holding member (13)
Get away from. Therefore, the operating member (14) is the holding member (13).
With this, the blind (36) can be freely moved up and down, that is, the blind (36) can be moved up and down.

Then, in order to fix the operation member (14) again from such a state that the lifting operation is possible, let go of the operation lever (16) and use the return spring (26) to move the vertical frame (1).
It should be returned to the position along 1). As a result, the collet (21) is retracted to the tightening position again based on the tension of the spring (23), so that the operating member (14) and the blind (36) connected thereto are firmly fixed at that position. .

As described above, the operation of fixing and releasing the operation member (14) can be easily and reliably performed only by raising and lowering the operation lever (16). The fact that the operation member (14) can be smoothly moved up and down in the released state and that the operation lever (16) can be securely fixed or released without completely operating the operation lever (16) to the stop position has already been achieved by the present invention. As described above.

As shown in this embodiment, the chuck device (17)
Operation member (14) so that the collet (21) faces upward
Fixed to the collar, the operation lever (16) is brought into contact with the lower end side of the collet (21) from below the collar (22), and the collet (21) is pushed up against the collar (22) to be opened. In that case, there are the following advantages.

That is, in order to reduce the lifting and lowering operation and the load on the chuck device (17), a balance weight that opposes the weight of the blind (36) is used as the operating member (14).
It is good practice to install the balance weights on the to secure the balance weights, but if such a balance weight is not provided, or if the blinds (36) are large and balancing using only the balance weights is difficult, It acts on the operating member (14) via (19) and acts in the direction of raising it. At this time, chuck device (17)
With the structure in which is attached to the operation member (14) as described above, the collet (21) that is tightening the holding member (13) in the fixed state can be further pushed downward with respect to the collar (22). Therefore, the restraining force on the holding member (13) increases more and more, so that even if a large pulling force acts, no slippage occurs.

By the way, in this embodiment, the upper and lower ends of the holding member (13) are fixed to the vertical frame (11) by the adapters (18), but the holding member (13) is not a string or a wire. However, since it has sufficient rigidity by itself, only one of the ends may be fixed to the vertical frame (11). By doing so, there are advantages that the number of parts of the blind lifting device can be reduced and the mounting work of the lifting device to the window frame can be facilitated.

[Effects of the Invention] As described above, according to the blind window raising / lowering device of the present invention, the collet that elastically expands in the free state and the collet is tightened based on the axial movement. Alternatively, a chuck device having a collar for opening and a spring for urging the collar in the direction for tightening the collet is provided on the operation member for raising and lowering the blind, and the spring force acts as the tightening force for the collet via the collar. As a result, the rod-shaped holding member is restrained from its surroundings, so even if the spring force deteriorates due to changes over time, the fixing function of the operating member will not be impaired, and therefore a stable fixing function for a long period of time will be obtained. The effect that it can be secured is obtained.

In addition, since the chuck device exerts a strong holding force in the tightened state of the collet as described above, the surface of the holding member can be finished correspondingly to eliminate resistance and catching when sliding the operating member. Therefore, the operation feeling when the chuck device is opened and the operation member is operated in the vertical direction is significantly improved.

On the other hand, in the blind lifting device according to the present invention, the operation member is provided with the foldable operation lever along the front surface of the vertical frame, and the collet of the chuck device is opened when the operating lever is raised from the vertical frame. Basically, there is an advantage that the blind can be moved up and down by a simple operation of raising or folding the operating lever, but in addition to this, the following effect is obtained in terms of operability.

That is, based on the configuration of the chuck device that exerts a holding force depending on the frictional force, even if the raising operation of the operating lever is insufficient, the blind can be raised and lowered without trouble and the folding of the operating lever can be performed. Even if the operation is inadequate, it can be securely fixed. For this reason, the usability as a blind lifting device becomes extremely good.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of the present invention, and FIG. 2 is an external perspective view of the same. FIG. 3 is a sectional view taken along the line II of FIG. 1, and FIG. FIG. 5 is a schematic front view of a double-glazed window to which the above embodiment is applied, and FIG. 6 is II of FIG.
-II sectional view, FIG. 7 is a III-III sectional view of FIG.
FIG. 8 is an external perspective view of a conventional example. (11) …… Vertical frame, (13) …… Holding member, (14) …… Operating member, (15) Pulley, (16) …… Operating lever, (16b) …… Fork part, (17) …… Chuck device, (19) ...... Lifting string, (21) ...... Collet, (21b) ...... Collet grip, (22) ...... Collar, (23) ...... Spring, (30a), (30b) …… Window, (34) …… Glass, (35) …… Window frame, (36) …… Blind, (40) …… Slat, (41) …… Rail member.

Claims (3)

[Scope of utility model registration request] 1. A blind is accommodated between an inner glass and an outer glass fitted in a window frame at a predetermined interval, and an operation member connected to a string for raising and lowering the blind is gently attached to the vertical frame of the window frame. In a double-paned glass window that can be moved freely, a collet that elastically expands in a free state, a collar that tightens or releases this collet based on axial movement, and a collar that tightens the collet are provided. A chuck device provided with a spring for urging is provided on the operating member, and a rod-shaped holding member which is tightened or released by a collet through the chuck device is attached along the vertical frame of the window frame, and the vertical frame is also provided. A control lever that can be folded along the front surface of the operation member is provided on the operation member, and this operation lever places the chuck device at the position where the collet opens when it is raised from the vertical frame. Blind lifting device of double-glazed windows, characterized in that the arrangement for moving. 2. The chuck device has its collar fixed to an operating member such that the collet faces upward, and the operating lever is brought into contact with the lower end of the collet from below the collar to push the collet against the collar. The double glass window blind raising / lowering device according to claim 1, wherein the blind raising / lowering device is configured to be opened by raising. 3. The blind lifting device for a double glass window according to claim 1 or 2, wherein the holding member has only one of the upper end and the lower end fixed to the vertical frame. .