JPS6022224Y2 - shutter device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shutter device used to shield entrances, windows, etc. of buildings, or as partitions that can be opened and closed.

A typical shutter device consists of a shutter unit consisting of a number of slats rotatably connected to each other, a winding mechanism that winds up this shutter unit, and a shutter that is located on both sides of an opening such as a window. It is structured with a guide rail to guide the unit.

The slats that make up the shutter unit are generally made of elongated steel plates, and are connected so that they can rotate by a predetermined angle at engaging parts formed at adjacent ends, and the shutter unit This makes it possible to wind up the material into a roll on a thin winding shaft.

However, this rotation in the engaging portion causes friction and collision between the slats and the guide rail, which causes noise when the shirt shirt is opened and closed.

Similar noise is also generated when the shutter unit vibrates due to wind or the like.

SUMMARY OF THE INVENTION An object of the present invention is to provide a shutter device in which the raising and lowering of the shutter unit is smooth, noise is low, and the slats can be easily stored and pulled out using a slat pressing mechanism.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

FIGS. 1A to 1F are side views showing the opening operation process of the shutter device of the present invention.

In FIG. 1, reference numeral 1 indicates a plurality of slats that constitute a shutter unit that, when interconnected in a predetermined relationship, blocks an opening such as a doorway or a window of a building.

Each slat 1 is constructed by attaching appropriate panels to a rectangular frame made of light metal such as aluminum and steel, and can be moved along guide rails 2 installed on both sides of the opening of the building. .

When supported by the guide rail 2, the slats 1 are arranged continuously in the vertical direction so that their front surfaces are on the same plane (Fig. 1a), and the storage space connected to the upper end of the guide rail 2 is When stored inside Box 3,
so that they are placed side by side (Fig. 1 f)
, and are interconnected by a link mechanism including link 4.

A long groove 5 is formed in the frame 1a of the slat 1 in the longitudinal direction, and a roller 7 housed in the frame 1a is attached to one end of a shaft 6 passed through the long groove 5, and a roller 8 is attached to the other end. installed.

On the other hand, the link 4 connecting the slats has a cam shape,
One end thereof is fixed to a nut 9 provided on the frame 1a with a bolt (not shown), and the other end is supported by the roller shaft 6 mentioned above.

Moreover, as shown in FIG. 2, the guide rail 2 has a cross section
It is shaped like a letter, and its upper end, which is placed inside the storage box 3, extends in the horizontal direction while changing direction in an arc shape.

Therefore, when the roller 8 inserted into the guide groove 2a in the guide rail 2 moves using the opposing surface as a guide and moves to the horizontal portion, the slat 1 is suspended via the roller 8.

Inside the storage box 3, a slat conveying chain 11 is endlessly suspended between upper and lower chain gears 12 and lower chain rollers 13 in parallel with the guide rail 2.

A power transmission chain 15 is suspended between another gear (shown in the attached figure) on the upper chain gear shaft and a chain gear 14 on a motor shaft (not shown) provided at the lower side of the storage box that does not interfere with the storage slat 1. It's being passed around.

The slat conveyance chain 11 is selected to engage with a rack 16 provided at the edge of the slat 1 at a position facing the slat 1 located at the upper end of the guide rail 2.

Therefore, when the conveyor chain 11 rotates to the left, the slat 1 rises, and when it rotates to the right, the slat 1 descends.

A slat pressing mechanism is provided at the entrance of the storage box on the side where the slat conveying chain is installed, which acts on a link mechanism that connects the slats to press the slats in a direction perpendicular to the front surface and move them out of the movement path.

This slat pressing mechanism is a bearing 17 inside the storage box 3.
An L-shaped bar 18 is mounted on a shaft 21 so as to be rotatable in one direction but not in the other direction.
It consists of a roller 19 attached to the free end of the link mechanism, and a return spring 20 acting on the bow-shaped lever 18 so that the roller 19 is always located within the movement path of the link mechanism.

The opening operation of the shutter unit, that is, the operation of storing each slat 1 in the storage box 3 is performed by rotating the slat conveyance chain 11 to the left.

Due to this rotation of the slat conveying chain 11, the slat 1 having the rack 16 engaged therewith rises along the guide rail 2 and enters the storage box 3.

Furthermore, the subsequent slats 1 connected to this slat 1 are also pulled up along the guide rail 2.

At the final stage when the uppermost slat 1 enters the storage box 3, when the link 4 located at the lower end contacts the roller 19 with its cam surface 4a, the slat 1 moves through this link 4 to its front surface. It receives a pressing force acting in a direction perpendicular to , and is stored in the storage box 3 .

When the roller 19 is pressed upward along the length direction of the guide rail 2, the end surface 18a of the lever 18 contacts the surface 17a of the bearing 17 and does not rotate, but when the roller 19 is pressed downward, the L of the lever 18 The bent part is arc-shaped 1
8b, it rotates and the roller 19 retreats out of the moving path of the link 4.

Therefore, when the link 4 further rises from the state where its cam surface 4a is in contact with the roller 19 (FIG. 1a), the uppermost slat 1 is moved inside the storage box 3 by the link 4 at its lower end surface (as shown in FIG. 1). right) and retreats from this path to allow the following slat 1 to rise.

As a result, the succeeding slat 1 will rise with respect to the slat 1 in the storage box 3, and this relative movement will cause the link 4 to rotate approximately 90° clockwise around the slat fixing point. , and then rises as the roller 7 moves within the frame 1a.

This operation causes the cam surface 4a of the following link 4 to
The process is repeated each time the slat 1 reaches the position where it contacts the slat 9, and each slat 1 is stored in the storage box 3 in sequence.

This process is shown in Fig. 1 a''f.

Note that when the link 4 is suspended and stored in the storage box 3, it rotates approximately 90' clockwise, resulting in a total rotation of approximately 1800 clockwise.

Further, near the upper end of the guide rail 2 in the storage box 3, a slat transport direction changing mechanism 21 is provided to change the transport direction of the slat 1 from the vertical direction to the horizontal direction. The upper part of the slat 1 is pressed, the slat 1 is smoothly moved to the horizontal part of the guide rail 2, and the slat 1 is stored inside the storage box 3.

The operation of feeding out each slat 1 from the storage box 3 is performed by moving the conveyance chain 11 in the opposite direction to that described above.

As a result, the slat 1, in which the conveyor chain 11 and the rack 16 are engaged, descends along the guide rail 2, the link 4 pivotally attached to this slat 1 also descends, and the roller 7
When the roller 7 reaches the lower end of the frame 1a and the roller 7, which will be described later, comes into contact with the movement range adjusting member 22, it rotates counterclockwise, and in this process, the succeeding slat 1 is pulled out to a position where it engages with the guide rail 2.

The adjustment member 22 described above is adjusted by changing the amount by which it is screwed into the nut 23.

As described above, in the shutter device of the present invention, the mutually connected slats are arranged on the same plane on the guide rail, and are suspended in parallel within the storage box.

Therefore, unlike conventional shutter devices in which a large number of slats are rotatably connected to each other, large noises are not generated during opening and closing operations, and there is no need to wind the slats into a roll, so the height of each slat can be increased. This prevents unnecessary movement of the slats and reduces noise caused by vibration.

Moreover, since the movement of each slat is carried out smoothly by the engagement between the rack and the conveyor chain, there is little noise or vibration generated by the drive mechanism.

Furthermore, attach an L-shaped bar to the bearing inside the storage box,
The end face of the L-shaped bar is brought into contact with the surface of the bearing, and
The bent part is cut out in an arc shape so that it can rotate in one direction but cannot rotate in the other direction, and by applying a return spring to this L-shaped bar, it is attached to the free end of the lever. Since the slat pressing mechanism is constructed by constantly positioning the roller in the movement path of the link mechanism, the slat can be reliably retreated out of the movement path via the link mechanism, making the raising and lowering movement of the shutter unit smooth. be able to.

Furthermore, since it has mechanical strength, there is no risk of damage even if strong pressing force is applied through the link mechanism.

As described above, according to this invention, the slat pressing mechanism allows the slat to be stored and extended very smoothly.

[Brief explanation of drawings]

Figure 1 a''-f is a side view showing the opening operation process of a shutter device according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing a part of the guide rail and slat, and Figure 3 is a view showing the attachment of the link. FIG. 4 is a front view of the frame, FIG. 4 is a plan view of the frame, FIG. 5 is a front view of the slat pressing mechanism, and FIG. 6 is a side view thereof. 1... Slat, 1a... ··flame,
2... Guide rail, 3... Storage box, 4... Link, 5... Long groove, 6
...Axis, 7, 8...Roller, 9...
... Nut, 11 ... Slat conveyance chain, 12.14 ... Chain gear, 13 ...
... Chain roller, 15 ... Power transmission chain, 16 ... Rack, 17 ... Bearing, 18 ... L-shaped bar, 19 ... . . . Roller, 20 . . . Return spring, 21 . . . Pressing member.

Claims (1)

[Scope of utility model registration request] A guide rail 2 that is located on both sides of a building, window, etc. and has a guide groove 2a formed inside, and a guide groove 2 of this guide rail 2.
A plurality of slats 1 are engaged at both ends thereof in a vertically movable manner, and one end of the slats 1 is disposed adjacent to a roller shaft 6 which is slidable in a long groove 5 extending in the longitudinal direction of the slats 1. A cam-shaped link 4 that is pivotally attached to the frame 1a of the slat 1 and connects each slat 1, and a horizontally extending guide rail extending in the horizontal direction at the upper end of the guide rail 2 are housed inside, and the above-mentioned A storage box 3 that stores each slat 1 side by side and a rack 16 provided near the upper end of the slat 1 travel within the moving path and engage with the rack 16 to raise and lower the slat 1. The slat pressing mechanism is provided with a conveyance chain 11 and a slat pressing mechanism located within the movement path of the links and 4 of the slat 1 to transport the slat 1 in the direction of the storage box 3, and the slat pressing mechanism is provided inside the storage box 3. The end face 1 is rotatably supported by a bearing 17 and a shaft 21 provided on the bearing 17, and a part of the bearing 17 abuts on a part of the shaft 21 for upward rotation control.
8a, a roller 19 attached to the free end of the L-shaped bar 18, and a roller 19 wound around the shaft 21, the roller 19 being always positioned within the movement path of the link 4. A shutter device comprising a return spring 20 that biases the above-mentioned lever 18 so as to move the shutter.