JPH0259271B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a covering member for a shutter, a blind, a projection screen, a curtain for a play, an insect screen, a banner for advertising, etc., and a method for using the covering member as a covering surface. The present invention relates to a covering device including a moving mechanism for moving in a direction along the direction of the covering device.

[Conventional technology]

Conventional covering devices include the following () and ().
are known.

() A winding drum connected to one end of the covering member is interlocked with a rotary drive device such as an electric motor to constitute a feeding mechanism, and the winding drum is housed in a housing section, and the winding drum is rotated in forward and reverse directions. Accordingly, the cover member can be switched between an active position and a non-active position. (For example, in 1977-
(Refer to Publication No. 86641) () A rotating shaft is provided at both the upper and lower ends of the opening, a cloth is wrapped between the rotating shafts, and the multicolored cloth is moved up and down by rotating both rotating shafts, The color can be changed, and both rotating shafts are linked together with a belt. (For example, see Japanese Utility Model Application Publication No. 52-129160.) [Problems to be Solved by the Invention] According to the conventional covering device described in () above,
After the cover member is paid out from the storage section, it descends under its own weight along the guide grooves provided on both ends in the width direction. If the leading end side receives resistance to downward movement, it will loosen, and if the degree of resistance differs in the width direction of the covering member, the lower end of the covering member will become slanted and twisted, and if you try to forcefully displace it, it may cause an accident. There were drawbacks such as causing damage and requiring time and effort to correct the posture.

Furthermore, according to the conventional covering device of () above,
Although it is effective in avoiding strain caused by the imbalance in the amount of downward movement of the cover member on both ends in the width direction, as in the conventional device (2) above in which the cover member is retractable, it is difficult to Since the colored cloth is always wrapped around the rotating shafts at both the upper and lower ends, the cover member always remains in the extended working position and cannot be retracted into the non-working position, which is a fatal flaw. . Furthermore, since the upper and lower rotating shafts are simply interlocked by a belt transmission mechanism, there is also the problem that the intermediate portion of the cover member may become loose due to slipping of the belt.

The present invention has been made in view of the above-mentioned circumstances, and provides a type of cover in which the cover member can be switched between a non-working position in which the cover member is stored in a storage section and an active position in which it is extended and unfolded from the storage section. It is an object of the present invention to enable a cover member to be reliably moved in and out while maintaining a predetermined posture even though the device is used.

[Means to solve the problem]

The characteristic structure of the present invention for achieving the above object is as follows:
A cover comprising a cover member and an ejection/extraction device capable of switching the cover member to a non-operating position in which the cover member is moved in a direction along the cover surface and stored in a housing part, and an active position in which the cover member is extended from the housing part and deployed. In the device, the advancing/retracting device is moved along the extending/retracting direction of the covering member by synchronizing the leaders on both sides in the width direction that support both end portions in the width direction of the covering member and the leaders on both sides of the covering member in synchronization with each other. It is composed of an expanding mechanism and a synchronized feeding mechanism that advances or retracts the covering member while making the advancing and retracting speeds at both ends of the covering member equal in the width direction, and the synchronized feeding mechanism is interlocked with the expanding mechanism. The expansion mechanism is configured to rotate in a synchronous manner in the same direction, and the expansion mechanism includes a rotation member that is rotated at a position facing each of the leaders on both sides so that the rotation amounts thereof are the same. and an engaging portion is formed at the contact portion between the rotating member and the leader to engage with each other so as to restrict relative movement of the covering member in the direction along the covering surface. This configuration provides the following functions and effects.

[Effect]

(i) The cover member itself does not continue to be supported by a synchronized feeding mechanism or a rotating member at both ends in the direction of movement, but by a leader part that moves in the direction of movement.
Since it is supported at both ends in the width direction, it can be freely switched between the unfolded working position and the non-working position stored in the storage section.

(ii) Since the cover member is supported at both ends in the width direction by the leader portion, and the leader portion engages with the rotating member and is moved in the direction of extension and retraction by the same amount on both sides, even if the cover member Even if there is some resistance to movement on the leading end side in the feeding direction, the covering member is forcibly moved in a state where the amount of movement at both ends in the width direction is equal, and the leading end side in the feeding direction of the covering member becomes slanted and distorted. You can avoid this as much as possible.

(iii) Since the rotating member of the expansion mechanism and the leader engage with each other at their contact portions, relative movement due to slip between the two can be avoided, and the intermediate portion of the covering member In addition, loosening due to the slip can be avoided.

(iv) Since the leader is positioned to support both ends of the cover member and is engaged with the rotating member, the swinging movement in the direction along the surface of the cover member is well controlled. By restricting movement of the cover member in the plane direction, movement of the cover member in the direction perpendicular to the plane direction is also suppressed to some extent.

〔Effect of the invention〕

(b) Due to the effects of (i) and (ii) above, even though the covering device is capable of switching between a non-working position in which the covering member is stored in the storage part and a working position in which the covering member is extended and deployed from the storage part, This has the effect of providing a covering device that can be smoothly moved in and out while avoiding twisting that would cause the side in the feeding direction to be in an oblique position.

(b) The effects of (iii) and (iv) above have the effect of restricting the slack and swinging movement of the intermediate portion of the cover member, thereby allowing the cover member to move in and out of a predetermined posture smoothly.

[Example] Hereinafter, an example of the present invention will be described in detail based on illustrative drawings.

[First Embodiment] (See Figures 1 to 5) Guide frames 2 are installed on each of the left and right sides of an opening 1 such as a window in a general residence or an office, or an opening for ventilation.
is attached, and is freely movable up and down between an active position that closes the opening 1 and a non-active position that opens the opening 1 via the egress/retraction device 3 while guiding the vertical movement by the left and right guide frames 2, 2. A cloth shutter 4 is provided as a covering member.

Thin strip-shaped spring steel plates 5 are attached to the rear surface of the shutter 4 at a predetermined interval in the width direction, and piano wires 6 are attached at a predetermined interval in the displacement direction, and are in an expanded state in the working position. Reinforced to maintain

The ejecting/retracting device 3 includes a storage portion 7 provided in the space above the opening 1 to store the shutter 4 in a non-operating position, and a low-speed electric motor 9 that can freely rotate forward and reverse to a roll 8 that winds up the shutter 4. A synchronized feeding mechanism 10 that is interlocked and connected, and a leader 14 that holds a plurality of positions at each of both ends of the shutter 4 in the width direction.
14, and an extension mechanism 11 that moves the leaders 14, 14 along the direction of extension and retraction of the shutter 4 and in synchronization with the synchronized feeding mechanism 10.

The roll 8 is composed of a single rotating shaft that is longer than the width of the shutter 4, and the upper edge of the shutter 4 is connected to the roll 8, and the drive rotation of the roll 8 causes the shutter 4 to be rotated in the width direction of the shutter 4. With the exit and exit speeds at both ends being equal to each other,
The synchronized feeding mechanism 10 is configured to displace the shutter 4 between an active position and a non-active position.

A gear type transmission mechanism 1 is provided at each end of the roll 8.
One end of a narrow leaf spring leader 14 is connected to each of the left and right auxiliary rolls 13, 13, and the other end of each of the left and right leaders 14, 14 is connected to the left and right auxiliary rolls 13, 13, respectively. A horizontal piano wire 6 connected to the roll 8 and further attached to the shutter 4...both ends thereof and the left and right leaders 14, 14 are connected via a metal fitting 15, and the left and right leaders 14, 14 are connected to each other through a metal fitting 15. Engagement holes 16 as engagement portions are formed at a predetermined interval in the longitudinal direction, and guide sprockets 17 are rotatably mounted on a shaft at a predetermined interval in the vertical direction. On the other hand, the left and right leaders 14, 14 are wound in a state in which the sprocket teeth 17a, which are another engaging part that engages with the engagement holes 16, are engaged with the engagement holes 16, and the roll 8, the left and right leaders 14, 14 are rotated while maintaining tension, and the distance between the holding parts A, A, and the roll 8 relative to the lower end of the shutter 4 in the width direction is maintained at equal intervals. The extension mechanism 11 is configured to move the shutter 4 forward and backward while maintaining the same position.

A band-shaped reinforcing member 18 is attached to each widthwise end of the shutter 4, and left and right reinforcing members 18,1
8 are arranged to correspond to the insertion holes 19 of the left and right guide frames 2, 2, respectively, and are configured to prevent early wear and tear due to sliding contact at the insertion holes 19 when the shutter 4 is opened and closed. has been done.

In each of the left and right guide frames 2, 2, as shown in FIG. 3, the inner side wall portion 2a of the shutter 4 is pivotally connected to be able to swing open and close around the vertical axis P, and by opening the side wall portion 2a, dust can be removed. Or sprocket 17
It is structured so that maintenance and inspections such as oiling can be easily performed.

Inside each of the guide frames 2, 2, a plurality of latches 20 are pivotally connected to each other so as to be vertically swingable and are positioned corresponding to the inner edge of the leader 14, and can be pushed and pulled in the vertical direction. The rods 21 and the latches 20 are linked, and when the rods 21 are operated, the leader 14 is protruded laterally to abut against and prevent inward displacement of the leader 14, and the latch 20 is in a retracted position outward from the leader 14. The shutter 4 is thus configured to be switched to a non-operating state in which the shutter 4 is opened, closed, raised and lowered without being affected by the latches 20. Therefore, when the shutter 4 is in the closed state, the latch 20...
By switching the shutter 4 to the active state, it is possible to prevent the shutter 4 from expanding due to wind pressure, and the leaders 14, 14 from being displaced laterally and being separated from the sprockets 17. 22 in the diagram...
shows a guide roll that is placed between adjacent sprockets 17 and presses the leader 14 toward the sprockets 17 to prevent the leader 14 from separating from the sprockets 17. This guide roll 22... is
Although not shown, the fixing position is adjustable in the direction of moving away from and away from the reader 14.

[Second Embodiment] (See Figure 6) A storage section 7 is provided between the ceiling and the floor slab above it.
This is applied when a relatively wide space can be formed to form the leader 14,
The sprocket shaft 2 has an endless structure with each of the shafts 14 having a length more than three times the length in the displacement direction of the shutter 4 as a cover member, and has sprockets 23, 23 attached to each end thereof in the housing portion 7.
4, 24a... are rotatably mounted on shafts, and a motor (not shown) is interlocked and connected to the sprocket shaft 24 on the side closer to the opening 1, and these sprockets 23... and the sprockets in the guide frames 2, 2 1
7...A leader 14, 14 of an endless structure, which connects and holds a plurality of locations at each end of the shutter 4 in the width direction, is wound around each of the idler sprocket shafts 24a... While the shutter 4 is always maintained in a constant tension state by the extension mechanism 11 composed of guide sprockets 17, the synchronized extension mechanism 1
0, the drive sprocket shaft 24 and the sprockets 23, 23 attached to both ends of the drive sprocket shaft 24 are driven and rotated to be displaced between an operating position and a non-working position. According to this configuration, the shutter 4 can be a garage shutter, a crime prevention shutter, or a smoke prevention shutter, in which narrow rigid pieces of iron or stainless steel are pivotally connected to each other.
It has the advantage that it can be easily applied to items that require strength, low flexibility, and are difficult to wind up, such as fire prevention shutters. While there is a drawback that the front and back surfaces of the shutter 4 come into sliding contact with each other during removal, and are easily damaged, the second embodiment has the advantage that the shutter 4 itself does not come into sliding contact and its life can be extended.

[Third Embodiment] (See Figures 7 and 8) The first embodiment, a modified version of the second embodiment, and a conventional shutter 25 made of steel that opens and closes using weight. It is configured to selectively display different types of advertising screens at stores etc. by combining the following.

That is, rotary support shafts 27 are provided in a cantilevered manner protruding from the pit 26 provided on the floor and the left and right guide frames 2, 2 on both sides of the opening 1, and the rotation support shafts 2
7...A large-diameter sprocket 28 and a small-diameter sprocket 29 are rotatably fitted loosely into each other, and the large-diameter sprockets 28 are wound around the drive roll 8 and auxiliary roll 13 provided in the accommodation section 7 in the ceiling space. Both ends of the leaders 14, 14 are connected, and a curtain-shaped first screen _S1 as a cover member is detachably attached to the left and right leaders 14, 14, and on the other hand, it is rotatably attached to the housing section 7. An endless leader 14 extends from the drive sprocket shaft 24 and the idle sprocket shaft 24a from the sprockets 23 at both ends to the small diameter sprocket 29, respectively.
14 is wound, and the left and right leaders 14,1
4, curtain-like second and third screens S ₂ and S ₃ as separate cover members are removably attached with different phases in the rotation direction, and the drive roll 8 and drive sprocket As the shaft 24 is driven to rotate, a desired one of the first to third screens S ₁ , S ₂ , S ₃ is displaced to an active position that closes the opening 1 and is advertised. 30 in the diagram...
1 shows support rolls that guide the movement of the leaders 14, 14 in the housing section 7 according to the second embodiment. Although the third embodiment shows a combination with the conventional shutter 25 from a practical point of view, the present invention may be implemented without the conventional shutter 25.

[Fourth Embodiment] (See Figures 9 to 11) Two sliding doors 31, 31 are used in homes, etc.
A pair of guide frames 2, 2 are erected in the middle part of the opening 1 in the left and right direction, and the guide frames 2, 2 are provided at both left and right ends of the opening 1, respectively. In each of the guide frames 2, 2, 2, 2, which are set upright and have a pair on each side,
Leaders 14, 14 having the same configuration as in the first embodiment are installed inside, and clamp fittings 33 are attached at a predetermined distance in the longitudinal direction of the left and right leaders 14, 14, respectively, and a glass fiber insect screen 34 is installed as a covering member. A reinforcing strip-shaped spring steel plate 35 is attached to each of the left and right ends of one side by being held between the backing plates 35a, and the clamp fittings 33 are attached to predetermined ones of the backing plates 35a. . In the housing part 7 formed above the opening part 1,
A drive roll 8 and an auxiliary roll 13 having the same configuration as in the first embodiment are provided in pairs on the left and right,
The left and right leaders 14, 14 are connected to the guide frames 2, 2.
The left and right leaders 1 are wound around guide sprockets 17 that are rotatably mounted inside the respective guide sprockets 17.
One end of each of the left and right insect screens 4 and 14 is connected to the drive roll 8 and the other end is connected to the auxiliary roll 13, respectively, and the left and right insect screens 34 and 34 can be placed in the non-operating position stored in the housing section 7 and in the sliding door 31. , 31 is configured to be able to move in and out independently of the operating position in which it is lowered to cover the open side.

Therefore, in the conventional screen door type, a sliding groove dedicated to the insect screen is provided in the sash frame 32, and even when the insect screen is not needed, the sliding groove can be moved outward of the double sliding doors 31, 31 or when the left and right sliding doors are closed. If the insect screen is moved to the outside of either of the different doors 31, 31, it may become an eyesore due to the presence of the insect screen over the glass door. Compared to the drawback that the net was exposed to rain and the outside air, easily deteriorated and had a short lifespan, according to the fourth embodiment using the present invention,
When not in use, the insect nets 34, 34 can be stored in the accommodating portion 7, which has the advantage of eliminating the above-mentioned disadvantages in appearance and prolonging the service life.

The first to fourth embodiments respectively include the above-described shutter 4 and advertising screens S ₁ , S ₂ , S ₃ and
In addition to the insect screen 34, it can also be used as a covering member, such as projection screens, sunshades in sunrooms and greenhouses, curtains, ball nets in playgrounds, blinds, and shields for soundproofing, heat absorption, rainproofing, and moistureproofing. Element,
Smoke prevention banners that open and close in conjunction with detectors, etc.
Various types can be adopted.

These cover members 4, S ₁ , S ₂ , S ₃ , 34 can be applied not only when moving up and down, but also when moving up and down horizontally or in the front-back direction.
Further, the movement in and out may be performed manually using a handle or the like.

[Fifth Embodiment] (See FIGS. 12 to 16) The egress/egress device 3 of the present invention is applied to a blind 36 as an example of a cover member.

That is, a pantograph mechanism 38 is constructed by attaching a fixed frame 37 to the housing part 7 above an opening 1 such as a window, and connecting links 38a to the guide frames 2, 2 on the left and right sides of the opening 1, respectively. are installed internally, and the upper ends of the left and right pantograph mechanisms 38, 38 are pivotally connected to the end of the fixed frame 37, and the links 38a are pivotally supported in a cross shape, and the left and right pantograph mechanisms 38, 38, the spindle 3 to which the blind piece 36a is attached
9 is mounted on the shaft, and the left and right pantograph mechanism 3
The lower ends of 8 and 38 are connected by a horizontal frame 40.

Sprockets 41, 4 are provided at both ends of the housing portion 7.
A roll 42 in which the rolls 1 and 1 are connected is rotatably mounted on an axis,
On the other hand, a drive roll 44 with sprockets 43, 43 connected to both ends thereof is rotatably mounted below the opening 1, and holes 45 for engaging the sprocket teeth are bored at a predetermined interval in the longitudinal direction. An endless leader 46 made of a leaf spring is attached to the guide frame 2,
2, respectively, and both ends of the horizontal frame 40 and left and right leaders 46, 46 are integrally connected, and a gear type transmission mechanism 47 is connected to the drive roll 44. The first handle 48 is interlocked and connected via the
By the rotation operation, the horizontal frame 40 is rotated so that the intervals between the holding parts A, A of the horizontal frame 40 and the leaders 46, 46, and the fixed frame 37 serving as the other end holding part are equal to each other on the left and right sides. The extension mechanism 11 moves up and down into and out of the housing section 7.
is configured. In this configuration, the synchronized feeding mechanism 10 itself, which moves the blind 36 as a covering member in and out at the same speed at both ends in the width direction, is constituted by the expanding mechanism 11 itself.

The blind piece 36a...A first
As clearly shown in FIG. 4, the strings 49, 49 are connected and fixed, and the strings 49 are integrally connected to an operating string 50 that is stretched over in the vertical direction.
In addition, the upper ends of the left and right operation strings 50, 50 are connected to the storage portion 7.
connected to a rotating body 51 rotatably mounted on a shaft,
A vertical gear shaft 52 is rotatably provided on one of the guide frames 2, 2, and the gear shaft 52 and the rotating body 51 are interlocked and connected via a first gear type transmission mechanism 53. 52 and a horizontal rotation shaft 54 are interlocked and connected via a second gear type transmission mechanism 55, and the horizontal rotation shaft 54 and a second handle 56 are interlocked and connected via a universal joint 57, and the second The blind pieces 36a are rotated by rotating the handle 56, and the blind pieces 36a are changed from a horizontal position to a substantially vertical position.

The blind pieces 36a are each formed into an arc shape, and when the blind pieces 36a are in a substantially vertical position, the first blind pieces 36a...
As shown by the two-dot chain line in Fig. 4, the upper blind piece 36a is bent outward, and the lower end of the upper blind piece 36a overlaps the upper end of the lower blind piece 36a from the outside. It is constructed so that it can effectively block wind and rain when it is attached and used outside a window.

FIG. 17 shows a modification of the swinging operation structure for the blind pieces 36a in the fifth embodiment, in which the middle part of the operation string 50 is integrally connected to the wheel body 39a while being connected to the support shaft 39. At the same time, the portion between the adjacent skin shafts 39, 39 is wound around a guide ring body 58 rotatably attached to the connecting portion between the ends of the links 38a, for example, the horizontal frame 40.
Even when the blind 36 is used in a state where the blind pieces 36a are lowered to a midway point in the vertical direction of the opening 1, the blind pieces 36a are configured to be able to be easily swung. Note that if this configuration is adopted and the horizontal frame 40 is made to be able to be lowered to a position relatively lower than the lower end of the opening 1, for example,
By raising and lowering the horizontal frame 40 below the opening 1 with the blind piece 36a in a horizontal position, the interval between the upper and lower blind pieces 36a, 36a, . . . can be changed without changing the posture of the blind piece 36a. It is possible to configure the structure to be able to effectively block sunlight from oblique sunlight, while also allowing for good ventilation without changing the overall ventilation area as much as possible.

In the present invention, the leaders 14 and 46 may be made of, for example, chains or wires, and various materials such as synthetic resin or artificial leather may be used.

Further, when configuring the expansion mechanism 11, for example,
In the case of the first embodiment, the auxiliary roll 13 is constructed of a long single piece like the drive roll 8, and the motor 9 is connected to the auxiliary roll 13 and the drive roll 8 through respective clutches. In the case of the second embodiment, the left and right guide rollers 17 at the lowermost ends are rotated by one rotation. It is attached to a shaft so that it can rotate freely, and a motor is also interlocked with the rotating shaft so that the motor linked to the drive sprocket shaft 24 and the motor linked to the lower rotating shaft are selectively driven. It is configured to apply rotational frictional resistance only to the shaft that has been switched to the driving state, and the V
A winding transmission device is made of a flexible material such as a belt or rope and has locking members attached at predetermined intervals in the longitudinal direction, and the side to which the cover member such as the shutter 4 is attached is always kept under tension. The winding transmission may be configured to be driven and rotated without slipping while maintaining the winding transmission, and the winding transmission may be connected and held with a cover member, and the leader may be made of a flexible material.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing the first embodiment, FIG. 2 is a partially cutaway side view of FIG. 1, FIG. 3 is a cross-sectional view of the main part of FIG. 2, and FIG. FIG. 2 is an enlarged cross-sectional view of the main part of FIG. 2, FIG. 5 is a partially cutaway perspective view of the main part, FIG. 6 is a partially cutaway side view of the second embodiment, and FIG. 7 is a partially cutaway side view of the third embodiment. 8 is a cross-sectional view of the main part of FIG. 7, FIG. 9 is a front view showing the fourth embodiment, FIG. 10 is a partially cut-away side view of FIG. 9, and FIG.
1 is a partially cutaway perspective view of the main part, FIG. 12 is a partially cutaway front view showing the fifth embodiment, and FIGS. 13 and 14.
The figures are a side view of Fig. 12 cut away at different positions, Fig. 15 is a cross-sectional view of the main part, and Fig. 16 is a cross-sectional view of the main part.
FIG. 5 is a partially cutaway front view of the main part, and FIG. 17 is a perspective view showing a modification of the fifth embodiment. 2... Guide frame, 3... Entrance/exit device, 4, 34,
36, S ₁ , S ₂ , S ₃ ... cover member, 7 ... storage section,
10... Synchronized feeding mechanism, 11... Expansion mechanism, 1
4, 46... Leader, 16, 17a... Engaging portion, 17... Rotating member, A... One end side holding portion.

Claims (1)

[Claims] 1. A cover member and a non-working position in which the cover member is moved in the direction along the cover surface and stored in the storage section;
and a retractable device that can be switched to an operating position in which it is extended and deployed from the storage portion, and the retractable device is connected to leaders on both sides in the width direction that support both end portions in the width direction of the cover member. and an extension mechanism that moves the leaders on both sides in synchronization with each other along the direction in which the cover member moves in and out;
and a synchronized feeding mechanism that operates the covering member to feed or retract the covering member with equal advancing and retracting speeds at both ends of the covering member in the width direction, and the synchronous feeding mechanism is interlocked with the expanding mechanism to move the covering member in the same direction. Further, the expansion mechanism is provided with a rotation member that is rotated at a position facing each of the leaders on both sides so that the mutual rotation amounts are the same, A contact portion between the rotary member and the leader is formed with an engaging portion that engages with the cover member so as to restrict relative movement in the direction along the cover surface. covering device.