JPH0545754Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is fully opened when multiple slats connected via a hinge mechanism are folded in a superimposed state, and all slats are folded into a flat plate shape. This relates to a shutter that becomes fully closed when fully extended.

[Conventional technology]

Shutters of the above type are disclosed in Japanese Utility Model Application Publication No. 49-82531 and Japanese Patent Application Publication No. 57-205686.
The basic structure of the conventional shutters disclosed in these publications includes a plurality of slats 100a, 100b, 100c, 100d, as shown in FIG.
is equipped with a shutter main body A connected via hinge mechanisms 110, and in the fully open state shown in FIG. The structure is such that all the slats 100a to 100d protrude from the guide rail 120 and are folded into a mutually overlapping state.

FIG. 7 shows the structure of the connecting portion between the hinge mechanism 110 and the slats 100a to 100d, which are used in such a shutter. As is clear from the figure, the hinge mechanism 110 has a short main body portion 1 in vertical width.
A support shaft 11 is provided at each of the upper and lower ends of 11.
For example, the holding part 101 with an arcuate cross section provided at the lower end of the slat 100b is connected to the support shaft 1 at the upper end of the hinge mechanism 110.
At the same time, the slats 100a and 100b are connected to each other by fitting into the support shaft 113 at the lower end of the hinge mechanism 110 the holding part 102 with an arcuate cross section provided at the upper end of the slat 100a. ing. Further, as is clear from FIG. 6a, a drive device 2 for opening and closing the shutter
00 was one in which a bracket 204 protruding from the lower end of the shutter body A was connected to a chain 203 wrapped around an upper sprocket 201 and a lower sprocket 202.

When opening such a shutter from a closed state, the drive device 200 shown in FIG.
Pull up along 20. Then, in the initial stage, the lowest slat 100 is
a and the slat 100b above it are the hinge mechanism 11
It bends at 0 and protrudes forward at the bottom of the frontage. Then, as shown in FIG. 6c, after these two slats 100a and 100b are folded to completely overlap, the uppermost slat 100
d and the slat 100c below it are the hinge mechanism 1.
It bends at 10 and protrudes to the front of the frontage. As the drive device 200 continues to operate, all the slats 100a to 100d are overlapped and folded upward, as shown in FIG. 6d.

Also, when the shutter is closed from the open state, contrary to what has been described above, the upper slats 100d and 100c are sequentially extended, and the lowermost slat 100a and the slat 1 above it are extended.
00b is lowered to the bottom of the frontage while protruding from the frontage, and then extends to bring the shutter into a fully closed state.

[Problem that the invention attempts to solve]

However, as mentioned above, when opening and closing the shutter, the slat 10 moves forward at the bottom of the frontage.
If 0a and 100b were protruding, there was a problem that if a car was parked near the frontage or there were people, they would get in the way and make it impossible to open and close the shutter.

This idea was created to solve the above problems, and even if there are cars or people near the front door, it can be opened and closed without being disturbed, and it can be opened and closed completely. By effectively utilizing the lowest slat, the force of the slats attempting to sag due to their own weight, wind pressure, etc. and the weight of the hinge mechanism can be rationally absorbed, ensuring smoothness when opening and closing. Another object of the present invention is to provide a shutter that can maintain a three-dimensional aesthetic appearance when fully opened.

[Means for Solving the Problems] In order to achieve the above object, the shutter according to this invention has a hinge mechanism that connects the upper and lower adjacent slats to a main body portion that is shorter in vertical width than each slat. The upper and lower ends each have a holding part, and the support shafts provided at the lower and upper ends of the vertically adjacent slats are fitted into these holding parts so that they can rotate relative to each other. In addition, the vertical width of the lowest slat among at least four slats is longer than the vertical width of the intermediate slat, and in the fully open state, the lowest slat is overlapped with the intermediate slat. It is configured to be disposed diagonally upward in the front between the protruding end of the group of slats in the part and the guide rail, and is connected to a hinge mechanism in the middle part of the shutter body, so that the hinge mechanism a second elevating drive device that switches the slat above the connecting portion between a folded state and an extended state by moving up and down along the guide rail; A first elevating drive device is provided which switches the slats below the connecting portion between a folded state and an extended state by elevating the slat along the connecting portion, and these second and first elevating drive devices are in a fully closed state. When transitioning to the fully open state, the second elevating drive device is driven to bring the slats above the connecting portion into the folded state, and then the first elevating drive device is driven to fold the slats below the connecting portion. In the folded state,
In addition, when transitioning from the fully open state to the fully closed state, the first elevating drive device is driven to extend the slats below the connecting portion, and then the second elevating drive device is driven to extend the slats from the connecting portion. The upper slat is also configured to be in an extended state.

[Operation] According to the shutter configured as above,
When transitioning from the fully closed state to the fully open state, first, the hinge mechanism at the intermediate portion of the shutter body moves upward along the guide rail by driving the second elevating drive device. With this movement, the slats above the hinge mechanism protrude forward at the top of the opening and are folded, while the slats below are pulled up along the guide rail while remaining in the extended state. Thereafter, the lower end of the shutter main body is moved upwardly along the guide rail by the driving of the first elevating drive device, and with this movement, the slat between the intermediate hinge mechanism and the lower end is opened. The upper part of the slat protrudes forward and is folded, so that it overlaps the lower part of the slat that was folded earlier, resulting in a fully open state.

In such a fully open state, the lowest slats are arranged diagonally upward and forward between the guide rail and the protruding end of the intermediate slat group that is folded overlappingly with each other.
The sagging force of the slat group caused by its own weight, wind pressure, etc. and the weight of the hinge mechanism are supported by the vertical component of the lowest slat, and therefore the hinge mechanism and guide rail The load and moment applied to the meshing part between the slat and the hinge mechanism are reduced, and the vertical movement of the hinge mechanism along the guide rail and the relative rotation between the hinge mechanism and the slat are smooth. This allows the shutter to open and close smoothly and stably at all times.

Furthermore, when transitioning from the fully open state to the fully closed state, the lower end of the shutter main body moves downward along the guide rail by the drive of the first elevating drive device, and with this movement, A slat between the intermediate hinge mechanism and the lower end is extended at the top of the opening. Thereafter, the hinge mechanism at the middle of the shutter body moves downward along the guide rail by the drive of the second elevating drive device, and with this movement, the slat above the hinge mechanism moves toward the frontage. The upper part is extended, and at this time, the lower slat, which has been extended first, moves downward along the guide rail while remaining in the extended state, so that a fully closed state is obtained.

[Embodiment] Fig. 1 is a front view of a shutter according to an embodiment of this invention when it is fully closed, and Fig. 2 is an enlarged sectional view when it is fully opened. The shutter of the embodiment has four slats 1, 2, 3, 4 connected to hinge mechanisms 5, 6,
The shutter main body A is connected via a shutter body A, and a draining member 8 is connected to the lower end of the lowest slat 4. The opening and closing operations of such a shutter are guided by a pair of guide rails 9 erected on the left and right sides of the frontage.

Among the four slats mentioned above, the vertical width L1 of the uppermost slat 1 is longer than the vertical width L2 to L4 of the other slats 2 to 4, and the vertical width of the two middle slats 2 and 3 is longer. The dimensions L2 and L3 are configured to be the same, and the vertical width dimension L4 of the lowest slat 4 is longer than the vertical width dimensions L2 and L3 of the two middle slats 2 and 3, and It is configured to be shorter than the vertical width dimension L1 of. As is clear from Fig. 2, when fully opened, the uppermost slat 1 protrudes forward and downward to the front of the frontage and acts as an eaves, while the middle slats 2 and 3
are folded to overlap each other, and these protrude horizontally from the frontage, and the lowest slat 4 is arranged diagonally upward between the protruding ends of the upper slats 2 and 3 and the guide rail 9. .

As shown in FIG. 2, a support shaft portion 11 provided at the upper end of the uppermost slat 1 is rotatably fitted into a holding portion 91 provided at the upper end of the guide rail 9. The hinge mechanism 5 connecting the uppermost slat 1 and the lower slat 2 is provided at the upper and lower ends of the main body portion 51, which has a shorter vertical width than the slats 1 to 4. It has holding parts 52 and 53, and a holding part 52 at the upper end.
A support shaft portion 12 provided at the lower end of the uppermost slat 1 is fitted into the lower end portion 53 so as to be relatively rotatable, and a support shaft portion 21 provided at the upper end of the slat 2 is relatively rotatable in the holding portion 53 at the lower end. is embedded in. The hinge mechanism 6 that connects the slats 2 and 3 in the intermediate portion and the hinge mechanism 7 that connects the lower slat 3 and the lowest slat 4 in the intermediate portion have the same structure as the hinge mechanism 5 described above. The hinge mechanism 6 has a symmetrical structure with the other hinge mechanisms 5 and 7. 61 and 71 are main body parts; 62 and 72 are holding parts provided at the upper ends of the main body parts 61 and 71;
63, 73 are holding parts provided at the lower ends of the main body parts 61, 71, and holding parts 62, 72 at the upper ends.
each has a support shaft 22 at the lower end of the slat 2.
and a support shaft 32 at the lower end of the slat 3 are fitted so as to be relatively rotatable. A supporting shaft portion 41 of the portion is fitted so as to be relatively rotatable. Further, a holding portion 81 provided at the upper end of the draining member 8 is fitted into the support shaft portion 42 provided at the lower end of the lowest slat 4 so as to be relatively rotatable. The main body portion 51 of the hinge mechanism 5 and the upper end 23 of the slat 2 come into contact when the hinge mechanism 5 and the slat 2 are bent at right angles, and are not bent any further. The same applies to the main body portion 61 of the hinge mechanism 6 and the lower end 24 of the slat 2, the main body portion 61 of the hinge mechanism 6 and the upper end 33 of the slat 3, and the main body portion 71 of the hinge mechanism 7 and the lower end 34 of the slat 3. On the other hand, a spacer 74 is fixed to the main body portion 71 of the hinge mechanism 7, and the lowest slat 4 is configured to bend relative to the hinge mechanism 7 until its upper end 43 hits the spacer 74.

In FIGS. 3a, 3b, 3c, and 4, reference numeral 10 represents a lifting device. This elevating drive device 10 includes two drive systems, a first elevating drive device 10A and a second elevating drive device 10B.
The first elevating drive device 10A includes a driving side sprocket 10a installed at the upper part of the frontage, a driven side sprocket 10b installed at the lower part of the frontage, and a chain 10c wound around these sprockets 10a and 10b. and a drive motor 10d,
A bracket 82 protruding from the draining member 8 is connected to one location of the chain 10c. The second lifting drive device 10B has a driving side sprocket 10a' installed at the upper part of the frontage at a lower position than the above-mentioned driving side sprocket 10a, and a driving side sprocket 10a' installed at the lower part of the frontage at the same height position as the above-mentioned driven side sprocket 10b. A driven sprocket 10b', a chain 10c' wound around these sprockets 10a' and 10b', and a drive motor 10d', and a drive motor 10d' projecting from the hinge mechanism 6 at one point of the chain 10c'. A bracket 66 is connected thereto. FIG. 5 specifically shows the upper end of the chain 10c' connected to the bracket 66 of the hinge mechanism 6. In addition, in FIG. 5, the same parts as those explained in FIG. 2 are given the same reference numerals as in the same figure, and detailed description thereof will be omitted.

With the above configuration, when the second elevating drive device 10B is driven to lift up the middle part of the shutter body A, that is, the hinge mechanism 6 from the fully closed state shown in FIG. At the top, the hinge mechanism 5 protrudes forward, and the uppermost slat 1 and the lower slat 2 bend at the hinge mechanism 5 as a boundary until the slat 2 becomes horizontal, and its lower end 24 hits the main body part 61 of the hinge mechanism 6. (See Figure 2), the upward movement of the slat 2 stops. As the two upper slats 1 and 2 are folded as the second elevating drive device 10B is driven, the lowermost slat 4 and the upper slat 3 are folded.
is pulled up above the frontage along the guide rail 9 while remaining in the extended state. At this time, the bracket 82 and draining member 8 are also moved upward by being pulled by the bracket 66, so the chain 10c of the first lifting drive device 10A rotates between the sprockets 10a and 10b, and the motor 10d also idles. do. Next, the driving of the second lifting drive device 10B is stopped and while the lifting force is applied to the hinge mechanism 6,
When the first elevating drive device 10A is driven to lift up the lower end of the shutter main body A, that is, the draining member 8, the hinge mechanism 7 protrudes forward at the top of the frontage as shown in FIG. 3c, and the lowermost slat 4 and the upper slat 3 are bent at the hinge mechanism 7 as a boundary. Then, the slat 3 becomes horizontal and its upper end 33 hits the main body part 61 of the hinge mechanism 6, its lower end hits the main body part 71 of the hinge mechanism 7, and the upper end 43 of the lowest slat 4 hits the spacer 74. At this point (see FIG. 2), the drive of the first elevating drive device 10A is stopped, and the draining member 8 is maintained in an upwardly tensioned state. This keeps the shutter fully open and serves as an eaves with the uppermost slat 1 hanging diagonally forward. In addition, when the shutter is fully opened, part of the load due to the hanging force of the uppermost slat 1 and the intermediate slats 2 and 3 and the weight of the hinge mechanisms 5 and 7 is applied to the protrusion of the slat group S. Since it is supported by the lowest slat 4 that is disposed obliquely between the end and the guide rail 9, the holding part 73 of the hinge mechanism 7 and the support shaft part 41 of the upper end of the slat 4 fit together. There is an advantage that the load applied to the mating portion A is reduced accordingly.

When closing the shutter, first drive the first elevating drive device 10A to suspend and lower the draining member 8, so that the lowest slat 4 and the upper slat 3 are at the top of the opening as shown in Figure 3b. Stretch. Next, when the second elevating drive device 10B is driven to suspend and lower the hinge mechanism 6, the uppermost slat 1 and the lower slat 2
is extended at the top of the frontage, and at the same time, the lowest slat 4 and the slat 3 above it descend along the guide rail while remaining extended, and the shutter is fully closed as shown in FIG. 3a.

In this embodiment, the vertical width of the uppermost slat 1 is made longer than the vertical width of the other slats 2, 3, and 4, so that the slat 1 hangs diagonally forward when fully opened. However, by making the vertical width of the uppermost slat 1 the same as the vertical width of the intermediate slats 2 and 3, the uppermost slat 1 can be
The slats 2 and 3 at the intermediate portion may be overlapped with each other and folded. In addition, by making the vertical width dimensions of all slats 1 to 4 the same, all slats 1 to 4 can be
.about.4 may be superimposed.

[Effects of the invention] As described above, according to this invention, the first and second By sequentially driving the elevating drive device, each slat is folded or extended by protruding forward at the top of the frontage, and does not protrude forward at all at the bottom of the frontage, so that it can be moved near the frontage. Even if a car is stopped or there are people, the door can be opened and closed smoothly and safely without being disturbed or damaged.

Moreover, in the fully open state, the lowest slats are arranged diagonally upward between the guide rail and the protruding ends of the folded intermediate slat group, so that the slats are not under their own weight. The vertical force of the lowest slat can support the sagging force of the slat group caused by wind pressure, etc. and the weight of the hinge mechanism. Furthermore, the load and moment applied to the fitting part between the slat and the hinge mechanism are reduced, and the vertical movement of the hinge mechanism along the guide rail and the relative rotation between the hinge mechanism and the slat are prevented even during long-term use. This allows the shutter to open and close smoothly and stably at all times.

[Brief explanation of the drawing]

Fig. 1 is a front view of the shutter according to the embodiment of this invention in a fully closed state, Fig. 2 is a partially enlarged sectional view of the same in its fully open state, and Figs. 3a to 3c show the operation when opening and closing the shutter. An explanatory diagram, FIG. 4 is a side view for explaining the arrangement relationship between the first elevating drive device and the second elevating drive device, FIG. 5 is an enlarged side view showing the connecting part between the chain and the hinge mechanism, 6a
-6d side is an explanatory diagram showing the case of opening and closing a conventional shutter, and FIG. 7 is a sectional view showing a connecting structure between a hinge mechanism and a slat of a conventional shutter. A... Shutter main body, 1, 2, 3, 4... Slat, 5, 6, 7... Hinge mechanism, 9... Guide rail, 10... Elevating drive device, 10A... First elevating drive device, 10B...Second lifting drive device.

Claims (1)

[Scope of utility model registration request] The shutter body includes at least four slats connected via a hinge mechanism, and in a fully open state, every other hinge mechanism is held by a guide rail extending in the vertical direction so as to be able to move only vertically, and the at least four slats are In a shutter in which the slats are folded so as to protrude forward from the guide rail, the hinge mechanism that connects the upper and lower adjacent slats is connected to a main body portion that is shorter in vertical width than each slat. The upper and lower ends each have a holding part, and the support shafts provided at the lower and upper ends of the vertically adjacent slats are fitted into these holding parts so as to be relatively rotatable, In addition, the vertical width of the lowest slat among the slats is longer than that of the intermediate slat, and when the slat is fully open, the lowest slat is overlapped with the intermediate slat group. It is configured to be disposed diagonally upward in the front between the protruding end and the guide rail, and is connected to a hinge mechanism in the middle part of the shutter body, and is arranged along the guide rail of the hinge mechanism. a second elevating drive device that switches the slats above the connecting portion between a folded state and an extended state by elevating and lowering the shutter; A first elevating drive device is provided for switching the slats below the connecting portion between a folded state and an extended state, and these second and first elevating drive devices switch the slats from a fully closed state to a fully open state. At the time of transition, the second elevating drive device is driven to bring the slats above the connecting portion into the folded state, and then the first elevating drive device is driven to bring the slats below the connecting portion into the folded state, and When transitioning from the fully open state to the fully closed state, the first elevating drive device is driven to extend the slats below the connecting portion, and then the second elevating drive device is driven to extend the slats below the connecting portion. A shutter characterized in that the upper slat is configured to be in an extended state.