JPH0355638B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a roll-up screen door.

When a roll-up screen door is opened, the entire screen door, except for a part, is stored in the mesh storage case, so it has a superior sense of openness when the door is opened compared to a sliding screen door.
They also have the advantage of making efficient use of space since there is little storage space in the screen door area, and in conjunction with the shift to Western lifestyles, they have been adopted by many homes and offices in recent years.

However, since the opening/closing operation of a roll-up screen door is performed at either the left or right end of the screen door, as the screen door is repeatedly opened and closed, that is, the screen door is rolled up and rolled down, a height difference occurs between the left and right sides of the screen door, resulting in a non-horizontal state. It's easy to happen. This is a major drawback of roll-up screen doors, and in order to prevent this, the factory carefully adjusts the horizontal height and tightening force of the screen holding roll that winds up and holds the screen door before shipping. be done.

On the other hand, due to the structure of the screen door installation location in a building, for example, a screen door that opens and closes on the left side is not suitable, and a screen door that opens and closes on the right side is sometimes required. In this case, at the screen door installation site, a screen door that opens and closes on the left side is often partially disassembled and reassembled into a screen door that opens and closes on the right side. the result,
The painstaking fine-tuning at the factory became pointless, and the screen door tended to be difficult to open and close in a horizontal position.

In addition, to prevent this, attempts have been made to manufacture the left opening/closing type and the right opening/closing type separately at the factory, but this increases the cost and requires immediate response to change requests from the customer at the screen door installation site. There was a defect that could not be done.

In view of the current situation, the present invention provides a winder that can be easily changed to either the left or right opening/closing type at the installation site, does not affect fine adjustments in the factory, and can be manufactured relatively economically. It provides a type screen door.

That is, the present invention incorporates a holding case 3 in which both ends of a screen holding roll 2 for winding and holding the screen door 1 are fixed and housed in a state in which the roll can rotate, and a winding operation mechanism is incorporated, and a rotational output is generated. Consisting of two independent components of a bracket 5 having a take-out part 4,
The bracket 5 can be detachably connected to both the left and right ends of the holding case 3 in a state adjacent to the ends, and the connection is made between the rotational output take-out part 4 of the bracket 5 and the net holding roll of the holding case. 2 are connected directly or indirectly.

FIG. 1 is a drawing showing a typical embodiment of the present invention. There is a holding case 3 in which a screen holding roll 2 (indicated by broken lines) for winding and holding the screen door 1 is housed, and a bracket 5 in which a winding operation mechanism is incorporated.

The greatest feature of the present invention is that a holding case 3 in which both ends of a screen holding roll 2 that winds up and holds the screen door portion 1 are fixed and housed in a state in which the roll can rotate
and a bracket 5 having a built-in winding operation mechanism and a rotating output take-out part 4, each consisting of two independent components, and the bracket 5 is placed adjacent to both the left and right ends of the holding case 3. It is constructed so that it can be detachably connected.

Here, the expression that the holding case 3 and the bracket 5 are independent means that neither the holding case 3 nor the bracket 5 is housed inside the other.

A bracket 5 incorporating a winding operation mechanism exists separately from the holding case 3, and both ends of the net holding roll 2 are fixed to the holding case 3, so that the left opening/closing operation type can be changed to the right opening/closing type. Operated,
In the case of the reverse change, there is no need to disassemble the holding case 3, and it is sufficient to simply remove the bracket 5 from one end of the holding case 3 and attach it to the other end. Therefore, in order to prevent the height between the left and right sides of the screen door 1 from becoming non-horizontal when opening and closing, the screen holding roll 2 was made at the factory.
This does not affect the fine adjustment of the installation at all, that is, the net holding roll 2 is finely adjusted at the factory and both ends of the net holding roll 2 are fixedly housed in the holding case 3 so that the roll can rotate. Even if the opening/closing operation is changed from left to right or vice versa at the screen door installation site after shipment from the factory, the finely adjusted state will be maintained as the holding case 3 will not be disassembled at all. After the screen door is installed, there is no problem in which the height between the left and right sides of the screen door section 1 becomes uneven and the screen door becomes non-horizontal.

In a conventional retractable screen door, a retractable screen door has a retractable operating mechanism housed and incorporated in a holding case, and a screen holding roll is connected to the retractable operating mechanism incorporated in the storage case. In order to reverse the left and right sides, these must be disassembled and reassembled, and the fine adjustment of the installation of the net holding roll must be re-adjusted.Furthermore, the fine adjustment at the installation site requires advanced fine adjustment at the factory. This is a big difference considering the fact that it is much inferior to the conventional method and can easily cause trouble after installing the screen door.

In the present invention, the winding operation mechanism of the bracket 5 is operated by, for example, a chain 6, and the output as a result of the operation is taken out from the rotational output take-out section 4. Therefore, the output of the bracket winding operation is transmitted to the net holding roll 2 by directly or indirectly connecting the rotational output extraction section 6 and the net holding roll 2 of the holding case 3. Here, "directly" means, for example, that a locking protrusion is provided at the end of the net holding roll 2, and a fitting hole is provided in the rotational output take-out part 6 of the bracket corresponding to the protrusion, and the fitting hole is inserted into the fitting hole. In the embodiment of fitting the above-mentioned protrusions, or conversely, a locking protrusion is provided on the rotational output extraction part 6 of the bracket, and a fitting hole is provided on the end of the net holding roll 2 corresponding to the protrusion, and the A typical embodiment is one in which the protrusion is fitted into the fitting hole. Note that when a locking protrusion is provided at the end of the net holding roll 2, the locking protrusion normally protrudes to the outside of the holding case 3. In such a case, the vicinity of both ends of the net holding roll 2 will be fixed to the holding case 3 in a state in which the roll can rotate, but in this specification, including the case where the vicinity of both ends is fixed in this way, It is called fixed. That is, considering the length of the net holding roll 2, it is sufficient that both ends are substantially fixed.

In addition, indirect means, for example, a prismatic rotation transmission pin 7
Examples include a mode in which the rotation output take-out part 6 of the bracket and the mesh holding roll 2 are fitted into fitting holes provided at the ends of the net holding roll 2, respectively, thereby interposing the rotation transmission pin 7 in the middle to connect them. . Furthermore, after the rotational output extraction part 4 of the bracket and the net holding roll 2 of the holding case are connected directly or indirectly, the bracket 5 is generally fixed to the holding case 3 by means such as screws. preferable.

Although the gist of the present invention has been explained above, typical specific embodiments of the present invention will be further explained below.

Figure 2a is a partially exploded view of the holding case 3, and b
The figure is a partial sectional view showing the state in which the net holding roll 2 is fixed to the side cover 3 of the holding case, the figure c is a front view of the side end member 2 of the net holding roll 2, and the figure d is a front view of the side end member 2 of the net holding roll 2. 2 is a perspective view of the side end member 2. FIG.

One end of the screen door portion 1 is fixed to a screen holding roll 2,
The screen door portion 1 is rolled up or lowered by the rotation of the screen holding roll 2. The net holding roll 2 is composed of a substantially cylindrical net holding roll body 2 (1) and a net holding roll side end member 2 (2). Although 1 of the net holding roll body 2 and 2 of the side end member 2 of the net holding roll may be formed integrally, they are usually formed separately for ease of molding. The net holding roll side end member 2 has the function of fixing the net holding roll 2 to the holding case side cover 3 of the holding case 3, and the function of receiving the output from the rotational output output portion 4 of the bracket 5. In order to provide the latter function, a rotation transmission pin fitting hole is provided in the center part, and in order to provide the former function, the cylindrical protrusion provided on the inner surface of 2 of the side cover 3 of the holding case is connected to the net holding roll. An annular recess 9 is provided around the rotation transmission pin fitting hole 8 for fitting the rotation transmitting pin 2 in a rotatable state. 2 of the holding case side cover 3 is normally fixed to 1 of the holding case main body 3 with screws or the like to constitute the holding case 3.

Figure 3a is an exploded perspective view of the bracket in which the winding operation mechanism is incorporated. Moreover, figure b is a sectional view taken along line A-A when the bracket shown in figure a is assembled.

In this embodiment, the bracket includes 1 of the bracket main body 5, a fixed shaft receiver 13, a winding spring 12, a mesh winding shaft 11, a winding pulley 10,
It consists of a chain and a bracket cover 5, all of which are assembled with the same central axis. In this figure, the fixed shaft receiver 13 is integrally formed in the central portion of the bracket body 5.

Next, the mechanism will be specifically explained. First, one end of the net take-up shaft 11 is a cylindrical fixed shaft receiver 1.
3, and a take-up pulley 10 is fitted externally to the other end.

Further, a winding spring 12 is disposed so as to be fitted onto both the net winding shaft 11 and the fixed shaft receiver 13, and the winding spring 12 tightly connects the two.

The tight binding connection is such that when the net winding shaft 11 is rotated, the winding spring 12 is tensed or relaxed due to the frictional resistance between the net winding shaft 11 and the winding spring 12.

Also, the direction of the winding spring 12 is the same as the winding shaft 1.
1 rotates in the direction indicated by reference numeral B in FIG. They are placed in a direction that increases tension and bondage.

By arranging the coiled spring 12 in this way, when the screen door 1 lowers due to its own weight or wind pressure and tries to close the door unnecessarily, the screen winding shaft 11 is It attempts to rotate in the direction indicated by the symbol B in Figure 3a, but due to the slight rotation of the mesh take-up shaft 11, the coiled spring 1
2 becomes tense and the degree of binding increases, and as a result, the winding spring 12 tightly connects both the net take-up shaft 11 and the fixed shaft receiver 13, and as a result, the net take-up shaft 11 is prevented from rotating any further, and the screen door portion 1 acts as a brake on the door being lowered and closed.

If you want to lower the screen door 1 and close the door, you can operate the chain 6 to rotate the take-up pulley 10 in the direction of symbol B. A portion of the spring portion that binds the fixed shaft receiver 13 of the coiled spring 12 is engaged with a bent portion of the spring end, for example, as shown in FIG.
The degree of binding of the fixed shaft receiver 13 of the coiled spring 12 is reduced, and the braking action of the net winding shaft 11 is released. In this state, the locking protrusion of the take-up pulley 10 and the locking protrusion of the net take-up shaft 11 are locked, and the net take-up shaft 11 easily rotates in the direction of symbol B to close the screen door portion 1. You can open the door.

If you want to roll up the screen door 1 and open it, operate the chain 6 to rotate the take-up pulley 10 in the opposite direction to the direction B, so that the screen take-up shaft 11 also rotates in the same direction as the take-up pulley 10. The coiled spring 12 is rotated, thereby relaxing the coiled spring 12, and the degree of tightness of the mesh winding shaft 11 of the coiled spring 12 is reduced.
As a result, the screen winding shaft 11 can be easily rotated and the screen door portion 1 can be rolled up and opened.

The rotational output take-out part 4 of the bracket 5 incorporating the winding operation mechanism as described above and the screen holding roll 2 of the holding case 3 are connected directly or indirectly as described above to form a winding type screen door. . Here, in the present invention, the bracket 5 is configured to be detachable from both the left and right ends of the holding case 3. For this purpose, as shown in FIG. 3B, rotational output extraction portions 4 are usually provided on both the front and back surfaces of the bracket 5. Specifically, the third
In figure b, rotation transmission pin fitting holes 8 are provided on both sides of the bracket 5. However, in some cases, the rotational output take-out portion 4 of the bracket 5 may be provided only on one side of the bracket 5. For example, if the winding mechanism built into the bracket 5 does not have a different braking effect or the like no matter which direction it rotates, the rotational output extraction section 4 is provided only on one side of the bracket 5, and the If the bracket 5 is to be reattached to the opposite end, the bracket 5 may be attached upside down. On the other hand, for holding case 3,
A connecting mechanism with the rotational output take-out portion 4 of the bracket is provided at both ends, so that it can be connected to either the left or right end.

As explained above, the retractable screen door of the present invention can be easily changed to either the left or right opening/closing type at the installation site, does not affect fine adjustments at the factory, and is relatively economical in terms of cost. It is something that can be manufactured, put into practical use, and has great utility.

Note that the present invention is not limited to so-called screen doors in a narrow sense, but can also be used for roll-up curtains, etc., which are rolled up in the same way as roll-up screen doors. This term also includes items similar to roll-up screen doors to which the principles of the present invention can be applied, such as roll-up curtains.

[Brief explanation of drawings]

FIG. 1 is a drawing showing a typical embodiment of the present invention. Figure a in Figure 2 is a partially exploded view of the holding case.
Figure b is a partial sectional view showing the state in which the net holding roll is fixed to the side cover of the holding case, figure c is a front view of the side end member of the net holding roll, and figure d is a perspective view of the side end member of the net holding roll. be. Figure 3a is an exploded perspective view of the bracket in which the winding operation mechanism is incorporated;
Figure b is A-A when the bracket in figure a is assembled.
FIG. 1 is a screen door portion, 2 is a screen holding roll, 1 of 2 is a screen holding roll main body, 2 is a side end member of the screen holding roll,
3 is a holding case, 1 in 3 is the main body of the holding case, 2 in 3 is a side cover of the holding case, 4 is a rotating output extraction part, 5 is a bracket, 1 in 5 is the main body of the bracket,
2 of 5 is a bracket cover, 6 is a chain, 7 is a rotation transmission pin, 8 is a rotation transmission pin fitting hole, 9 is an annular recess, 10 is a winding pulley, 11 is a mesh winding shaft, 12 is a coiled spring, and 13 is a fixed shaft receiver.

Claims (1)

[Claims] 1. Both ends of the screen holding roll 2 that winds up and holds the screen door 1 have a holding case 3 in which the roll is fixed and housed in a rotatable state, and a rotational output take-out part 4 in which a winding operation mechanism is incorporated. The bracket 5 is composed of two independent components, and the bracket 5 can be detachably connected to both the left and right ends of the holding case 3 in a state adjacent to the ends. rotational output extraction part 4
A roll-up screen door characterized in that the and the screen holding roll 2 of the holding case are connected directly or indirectly.