JP5864333B2 - Screen tension adjuster - Google Patents

Description

  The present invention relates to an apparatus for adjusting the tension of a sunscreen provided on a roof of a solarium or a terrace.

  As shown in FIG. 6, the sunroom 1 is attached to the housing of the house, and a transparent roof plate 5 for lighting is placed on the rafters 3 and the girders 4 supported by the support columns 2 and is necessary on the side surface and the front surface. And a panel, a door, etc. (not shown) are provided. In such a sunroom 1, in order to shield the sunlight especially in summer, an open / close type awning screen is attached on the roof (see, for example, Patent Document 1).

  In such a screen, as shown in the plan view of FIG. 7 and the side views of FIGS. 8A and 8B, a roll 7 that winds the screen 6 is disposed on the frame side portion on the rafter 3 constituting the roof. At the same time, a pair of guide rails 9 and 9 are mounted on the rafter 3, and rollers 11 provided at both ends of the slide bottom 10 are rotatably mounted on the guide rails 9 and 9, so that the slide bottom 10 is attached to the arrow in FIG. 7. It is mounted so as to be movable in the Y direction, and is constructed by connecting the end of the screen 6 to the slide bottom 10. Further, in order to prevent the screen 6 from dripping on the roof plate 5, a device for applying tension to the screen 6 is provided.

  The tension applying device includes winding pulleys 12 and 12 that are provided at both ends of the roll 7 and rotate integrally with the roll 7, wires 13 and 13 wound around the winding pulleys 12 and 12, and wires 13 and 13. In order to apply tension, a spring 14 provided in the slide bottom 10 and wires 13 and 13 are wound around the take-up pulleys 12 and 12 and the spring 14, so that guides attached to the guide rails 9 and 9 are provided. Pulleys 15 a and 15 a, guide pulleys 15 b and 15 b attached to rail caps 17 and 17 attached to the front ends of the guide rails 9 and 9, and guide pulleys 15 c and 15 c provided at both ends of the slide bottom 10 are provided.

  As shown in FIGS. 8A and 8B, the screen 6 and the wire 13 are wound so that the winding and feeding directions are opposite to each other with respect to the roll 7 and the winding pulley 12, respectively. Thereby, when the screen 6 is wound up (drawn out), the wire 13 is drawn out (wound up). And as shown to FIG. 8 (A), when the slide bottom 10 moves to the most front part, it comprises so that the tension | tensile_strength of the screen 6 and the wire 13 may become the maximum.

  That is, in the state where the slide bottom 10 is moved to the frontmost portion, the winding pulley 12 has the largest winding diameter of the wire 13, so that the screen 6 has the rafter 3 and the roof plate 5 so that the tension is maximized. It is configured to prevent it from drooping. By stretching the screen 6 in this manner, it is possible to prevent the screen 6 from being damaged by being in contact with the roof plate 5 or the like even during a strong wind or from generating noise.

  In FIG. 7, reference numeral 20 denotes a conventional tension adjusting device provided between the spring 14 and one wire 13. This tension adjusting device 20 is adjusted on site in order to correspond to the protruding width of the rafter 3 or the roof plate 5 according to the difference in the protruding width of the screen 6 in the arrow Y direction due to the difference in the standard or as necessary. Since it is necessary, it is necessary to adjust the tension by adjusting the lengths of the screen 6 and the wire 13.

  As shown in FIG. 9, this conventional tension adjusting device 20 has a spring 14 connected to one end of a slide plate 21 slidably mounted in the slide bottom 10, and wires 13 are attached to the slide plate 21 at a plurality of locations. The hooks 22a to 22e to be connected are provided, and the ring-shaped connection portion 13a provided at the end of the wire 13 is used as a hook (one of 22a to 22e) that can obtain a preferable tension corresponding to the maximum protruding width of the slide bottom 14. It is something to hang. When the tension is adjusted by the tension adjusting device 20, the operator holds the slide plate 21 connected with the spring 14 with one hand, holds and pulls the wire 13 with the other hand, and connects the wire 13. The part 13a is hung on one of the hooks 22a to 226e.

  FIG. 10 shows another conventional tension adjusting device. One wire 13 is connected to a hook 14a on one end side of a spring 14, and the hook 14b on the other end side of the spring 14 is connected to a metal fitting 23 having a non-return structure. The end of the other wire 13 is passed through the metal fitting 23. The metal fitting 23 can move the wire 13 with respect to the metal fitting 23 when the wire 13 is pulled in the arrow X direction with respect to the metal fitting 23, but the movement of the wire 13 is prevented in the opposite direction to the X direction. It has a structure. In this tension adjusting device, the operator grasps the metal fitting 23 with one hand and pulls the wire 13 with the other hand as indicated by an arrow X, thereby adjusting the position of the wire 13 to be attached to the metal fitting 23 to adjust the screen 6. And the tension of the wire 13 is adjusted.

JP 2003-41728 A

  However, according to the tension adjusting device shown in FIGS. 9 and 10, when the adjustment work is performed in the state shown in FIG. 8A, that is, with the slide bottom 10 at the front end of the rafter 3, this state is the most. Since the tension of the screen 6 and the wire 13 is maximized, it is necessary to pull the wire 13 toward the spring 14 with a strong force of, for example, 30 kg or more. Further, in any case, it is necessary for the operator to perform the tension adjustment work by using both hands and applying a force that reverses the direction of the right hand and the left hand. It is difficult for an operator to perform an operation using both hands with such a strong force in an unstable posture on a stepladder or ladder.

  For this reason, it is necessary to carry out the state shown in FIG. 8B where the tension of the wire 13 and the screen 6 is weak, that is, the state where most of the screen 6 is wound around the roll 7. In this state, the slide bottom 10 is in a state close to the housing side (roll 7 side), so that the operator places a panel 25 serving as a scaffold on the roof made of rafters 3 as shown in FIG. The person 26 needed to work on the panel 25.

  Such a work for attaching the screen 6 and a tension adjusting work are laborious work such as going up on the roof, lifting the panel and placing it on the roof. For this reason, there has been a demand for a tension adjusting device having a configuration in which the tension adjusting operation can be easily performed from the front or side of the sunroom 1 using a stepladder or the like.

Conventionally, since the tension adjustment is performed with the screen 6 being contracted, in order to observe the tension of the screen 6, after the tension adjustment is performed on the roof, the operator once gets off the roof and slides. After moving the bottom 10 to the front of the roof and opening the screen 6 and observing the tension of the screen 6, if the tension is not good (if the tension is weak, the screen 6 will hang down and abut against the roof plate 5). If it is too strong, the screen 6 may be wrinkled.), It is necessary to return the slide bottom 10 to the original position again to shrink the screen 6 and adjust the tension again. There was a problem that adjustment could not be performed efficiently.
Further, in the conventional tension adjusting device shown in FIG. 9, although stepwise tension adjustment is possible, since tension adjustment cannot be arbitrarily performed, when the output width is arbitrarily set, suitable tension adjustment cannot be performed. There was a problem that there was a case.

  In view of the above problems, the present invention makes it possible to easily and efficiently adjust the screen tension with a small force using a stepladder from the front or side of the sunroom or terrace, and to adjust the degree of tension. An object of the present invention is to provide a tension adjusting device for a sunscreen having a configuration that can be adjusted so as to be suitable.

The screen tension adjusting device according to claim 1 comprises:
A roll provided on a roof of a sun room or a terrace and wound with a sunscreen; and a screen unit having a wire take-up pulley which is provided at both ends of the roll coaxially with the roll and rotates integrally with the roll;
A slide bottom that moves along the left and right guide rails provided on the roof and that joins the front end of the screen;
Left and right wires wound around the guide pulleys provided at both ends of the guide rail and the slide bottom, respectively wound around the winding pulleys in the opposite direction to the screen;
In the tension adjusting device for the screen in the sunshade, which is connected in the slide bottom between the left and right wires wound around the respective winding pulleys, and provided with a spring for applying tension to the screen,
A pedestal provided movably in the slide bottom and connected to a tension adjustment side end of the spring;
A wire direction changing member comprising a pulley provided on the pedestal and having a pulley or an arc-shaped wire sliding surface portion capable of winding one wire in a U-turn shape;
And a fixing member provided on the pedestal and configured to fix the one wire on the pedestal.

The screen tension adjusting device according to claim 2, wherein the screen tension adjusting device according to claim 1,
The fixing member is attached to the pedestal and has a non-return function that allows only movement of the wire in the direction of increasing tension, and a function that releases the non-return mechanism.

  According to the first aspect of the present invention, a wire direction changing member having a pulley or an arc-shaped wire sliding surface portion is provided on a pedestal to which a spring is connected, and at the time of tension adjustment, the end of the wire is changed to the wire direction. The tension can be adjusted by hanging around the member, making a U-turn and pulling. For this reason, compared with the conventional case where the wire is pulled straight, the force required for the adjustment is about half. In addition, adjustment is possible by grasping and pulling the wire with one hand from the opposite side to the pulling force of the spring. For this reason, the operator does not go up to the roof of the sunscreen room such as the sunroom, but adjusts the screen tension while the worker is raised to the stepladder or ladder from the front or side of the screen room such as the sunroom. Can be easily performed.

  In addition, the tension can be adjusted while looking at the screen tension from the front or side of the solarium, etc., so that the tension is adjusted on the roof as before, and then the tension is lowered from the roof. The tension adjustment work can be completed quickly and efficiently without repeating the work of adjusting the tension by shrinking the screen again if observed from the side face or the front face.

  Further, since the length of the wire pulled for tension adjustment is twice that of the conventional one, finer tension adjustment is possible, and it is easy to set a tension more suitable than the conventional one.

  According to the invention of claim 2, the fixing member for fixing the wire to the pedestal has a non-return function that allows the movement of the wire in the metal fitting only when the wire is pulled. There is no need to do this, and the tension of the screen can be adjusted more easily. Moreover, when tension | tensile_strength is provided too much, a wire can be loosened by canceling a non-return function, and suitable tension | tensile_strength setting can be performed easily.

It is a perspective view which shows the sunroom which has an example of the screen for shade shown to which the tension adjustment apparatus of this invention is applied about the tension | tensile_strength adjustment work state of a screen. It is a top view which shows the sunroom with a screen of FIG. It is a perspective view showing one embodiment of a tension adjusting device of the present invention. It is sectional drawing which shows the wire fixing member of this Embodiment. It is a top view which shows other embodiment of the tension adjusting apparatus of this invention. It is a perspective view which shows the tension | tensile_strength adjustment work state of the sunscreen which applied the conventional tension adjustment apparatus. It is a top view which shows an example of the sunshade screen to which the conventional tension adjusting device is applied. (A), (B) is a side view which shows the awning screen and wire winding-out structure of FIG. 6, FIG. 7 in the state which unfolded the screen, and the winding-up state, respectively. It is a top view which shows the conventional tension adjusting device. It is a top view which shows the other example of the conventional tension adjusting device.

  FIG. 1 is a perspective view showing an example of an awning screen to which the tension adjusting device of the present invention is applied in a tension adjusting work state, and FIG. 2 is a plan view thereof. 1 and 2, the same reference numerals as those in FIGS. 6 and 7 indicate the same components, and thus redundant description is omitted. 1 and 2, reference numeral 30 denotes a shaft that rotates integrally with the roll 7 and the take-up pulley 12, and an operation device 31 for manually rotating the shaft 30 is attached to an end portion thereof. Reference numeral 32 denotes a screen unit, which includes a roll 7, a screen 6 wound around the roll 7, a take-up pulley 12, a cover 33 covering them, and an operating device 31. As a means for rotating the roll 7 and the take-up pulley 12, a motor accommodated in the roll 7 may be used. The wiring structure of the wire 13 is as shown in FIGS. 8 (A) and 8 (B).

  Reference numeral 35 denotes a tension adjusting device according to the present invention, and the tension adjusting device 35 is configured as shown in the perspective view of FIG. In FIG. 3, reference numeral 36 denotes a pedestal provided movably in the groove 10 a formed in the slide bottom 10, and 37 denotes a spring stopper provided on the pedestal 36. The spring 14 is connected to the pedestal 36 by hooking the hook 14 a at the tension adjustment side end of the spring 14 to the spring stopper 37.

  Reference numeral 38 denotes a wire direction changing member that hangs the wire 13 in a U-turn shape. The wire direction changing member 38 in this example is a pulley that is attached to a pedestal 36 so as to be rotatable about a shaft 39. Reference numeral 40 denotes a fixing member for the wire 13. The fixing member 40 is fixed to the base 36 by a fixing tool 41 such as a bolt.

  As shown in the sectional view of FIG. 4, the fixing member 40 of this embodiment is formed of a cylindrical body through which the wire 13 passes and has the following non-return function. That is, the cylindrical fixing member 40 has a tapered portion 40a and a cylindrical portion 40b, and a receiving side cylindrical body 40c and a pressing side cylindrical body 40d are movably incorporated therein, and these cylindrical bodies 40c. , 40d, the wire 13 is passed, and a plurality of spheres 40f are sandwiched between the receiving side cylinder 40c and the collar part 40e of the pressing side cylinder 40d, and the collar part 40e at the tip of the pressing side cylinder 40d and the cylinder A compression spring 40h is provided between the spring receiver 40g fixedly provided in the shape portion 40b. When the wire 13 is pulled in the direction of arrow E, the wire 13 can be moved relative to the fixing member 40. However, if the wire 13 tries to move in the direction opposite to the arrow E, the compression spring 40h The sphere 40f is pressed between the inner surface of the tapered portion 40a and the wire 13 by force, and the wire 13 is sandwiched by the sphere 40f to prevent the movement of the wire 13.

  Further, when the receiving side cylinder 40c is pressed by hand in the direction of arrow E against the force of the compression spring 40h, the restraint of the wire 13 by the sphere 40f is released, and the wire 13 is fixed to the fixing member 40 by the arrow E. It can be moved in the opposite direction, whereby the tension of the wire 13 and thus the screen 6 can be relaxed.

  The tension adjusting device 35 adjusts the tension of the wire 13 and eventually the screen 6 by making a U-turn with a wire direction changing member 38 and pulling it in the direction of arrow F as shown in FIG. Although the distance for pulling 13 is twice that of the conventional one, the force for pulling the wire 13 is about half. In addition, as shown in FIG. 3, the direction F in which the wire 13 is pulled when adjusting the tension is opposite to the direction in which the spring 14 acts, so that the spring 14 does not need to be gripped and only the wire 13 is held in one hand. Can be adjusted by gripping and pulling. For this reason, as shown in FIG. 1, the worker 26 can rest on the stepladder 45 or the ladder while keeping the screen 6 extended, and can safely perform the tension adjustment work from the front or side of the sunroom 1 with little effort.

  In addition, the tension can be adjusted while looking at the tension of the screen 6 from the front or side of the sunroom 1 or the like, so after adjusting the tension on the roof as before, the tension is lowered from the roof. The tension adjustment operation can be completed quickly and efficiently without repeating the operation of observing from the side or front surface of the sunroom 1 or the like and adjusting the tension again by shrinking the screen 6 if there is a problem.

  Further, since the length of the wire 13 pulled for tension adjustment is twice that of the conventional one, finer tension adjustment is possible, and it is easy to set a tension more suitable than the conventional one.

  FIG. 5 is a plan view showing another embodiment of the tension adjusting device according to the present invention. This tension adjusting device 35A has an arc-shaped wire sliding surface portion 46 instead of the pulley 38 as a wire direction changing member 38A. The circular member is provided and fixed to the pedestal 36 by a fixing tool 47 such as a bolt. According to this embodiment, although the frictional resistance with the wire sliding surface portion 46 is added as a force for pulling the wire 13 at the time of tension adjustment, the pulling force can be remarkably reduced compared to the tension adjustment of the conventional structure, Moreover, since it can be operated with one hand, the same effect as that shown in FIG. 3 can be obtained.

  Although the present invention has been described with the embodiment, when the present invention is carried out, the fixing member provided on the pedestal 36 is not limited to the one having the non-return function, and for example, the wire 13 is clamped by tightening bolts or screws. And what is fixed can also be used. In addition, the present invention is not limited to the above embodiment, and the screen 6, the guide rail 9, the slide bottom 10, the wire 13, the spring 14, the pedestal 36, the wire direction changing member 38, and the fixing member member 40 are within the scope not departing from the gist of the present invention. Various changes and additions can be made to these and combinations thereof.

1: solarium, 2: struts, 3: rafters, 4: girders, 5: roof plate, 6: screen, 7: roll, 9: guide rail, 10: slide bottom, 11: roller, 12: winding pulley, 13: wire, 14: spring, 15a to 15c: guide pulley, 17: rail cap, 30: shaft, 31: operating device, 32: screen unit, 33: cover, 35, 35A: tension adjusting device, 36: pedestal, 37: Spring stopper, 38, 38A: Wire direction changing member, 39: Shaft, 40: Fixing member, 40a: Tapered portion, 40c: Receiving side cylinder, 40d: Pressing side cylinder, 40h: Compression spring, 45: Stepladder, 46: Wire sliding surface part, 47: Fixing tool

Claims (2)

A roll provided on a roof of a sun room or a terrace and wound with a sunscreen; and a screen unit having a wire take-up pulley which is provided at both ends of the roll coaxially with the roll and rotates integrally with the roll;
A slide bottom that moves along the left and right guide rails provided on the roof and that joins the front end of the screen;
Left and right wires wound around the guide pulleys provided at both ends of the guide rail and the slide bottom, respectively wound around the winding pulleys in the opposite direction to the screen;
In the tension adjusting device for the screen in the sunshade, which is connected in the slide bottom between the left and right wires wound around the respective winding pulleys, and provided with a spring for applying tension to the screen,
A pedestal provided movably in the slide bottom and connected to a tension adjustment side end of the spring;
A wire direction changing member comprising a pulley provided on the pedestal and having a pulley or an arc-shaped wire sliding surface portion capable of winding one wire in a U-turn shape;
A screen tension adjusting device, comprising: a fixing member provided on the pedestal and configured to fix the one wire on the pedestal. The screen tension adjusting device according to claim 1,
The fixing member is attached to the pedestal and has a non-return function that allows only movement of the wire in the direction of increasing tension, and a function that releases the non-return mechanism.

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