JPS6022223Y2 - 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 consists of a guide rail that guides 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. This makes it possible to wind the film into a roll on a 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 vertical movement of the shutter unit is smooth, the noise is low, and the interval between the slats constituting the shutter unit can be adjusted.

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

FIGS. 1a and 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, when interconnected in a predetermined relationship, constitute a shutter unit that 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 in succession in the vertical direction so that their front surfaces are on the same plane (Fig. 1a), and the storage boxes connected to the upper end of the guide rail 2 are arranged continuously. When stored inside 3,
so that they are placed side by side (Fig. 1 f)
, are interconnected by a mechanism including links 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 of the bolt is attached to a nut 9 provided on the frame 1a (
(not shown), and the other end is supported by the roller shaft 6.

Moreover, as shown in FIG. 2, the guide rail 2 has a cross section
The upper end of the storage box 3, which has a letter-shaped shape, extends in the horizontal direction while changing direction in an arc.

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.

Here, for convenience of illustration, the pressing members such as the pressing roller 17 in FIG. It is illustrated.

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

Then, a power transmission chain 15 is suspended between another gear (not shown) on the upper chain gear shaft and a chain gear 14 of a motor shaft (not shown) provided at the lower side of the storage box where it does not get in the way of the slat 1. ing.

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.

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 conveyance chain 11 to the left.

As the conveying chain 11 rotates, the slat 1 having the rack 16 engaged therewith rises along the guide rail 2 and enters the storage box 3.

Further, 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 comes into contact with the pressing roller 17 with its cam surface 4a, the slat 1 moves through this link 4. It is stored in the storage box 3 under a pressing force acting in a direction perpendicular to the front surface.

The pressure roller 17 is pivotally supported by a free end of an arm (not shown) that is pivotally supported by the storage box 3, and is supported by the guide rail 2.
It is biased by a spring (not shown) acting on the arm so that it does not move when pressed up and down along the length of the arm, but retreats from within the movement path of the link 4 when pressed downward. .

Therefore, the link 4 presses the pressure roller 17 with its cam surface 4a.
As the uppermost slat 1 rises further from the state in which it is in contact with the slat 1 (FIG. 1a), the lower end of the uppermost slat 1 is pressed inward of the storage box 3 (to the right in FIG. 1) by the link 4, and the subsequent slat 1 back out of this path to allow it to rise.

As a result, the succeeding slat 1 will be raised relative to the slat 1 in the storage box 3, and this relative movement will cause the link 4 to rotate approximately 90' clockwise about 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 7, 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 degrees clockwise, resulting in a total rotation of approximately 180 degrees clockwise.

Further, near the upper end of the guide rail 2 in the storage box 3, a slat transport direction changing mechanism 18 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 19, it rotates counterclockwise and in this process pulls out the succeeding slat 1 to a position where it engages with the guide rail 2.

The adjustment member 19 is adjusted by changing the amount by which it is screwed into the nut 20.

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.

Furthermore, since it is not necessary to wind the slats into a roll, the height of each slat can be increased, thereby preventing unnecessary movement of the slats and suppressing the generation of noise due to 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, a long groove is provided in the frame on both sides of the slat in the longitudinal direction, a roller housed in the frame is attached to the shaft passed through the long groove, one end of the link is supported on the above shaft on the outside of the frame, and the other end of the link is is fixed to adjacent slats, and a moving range adjusting member for the roller is provided within the open end of the frame, so when connecting or assembling the slats or during use, the spacing between the slats may be different on the left and right sides. Also, the distance between the left and right sides can be adjusted to be equal very easily and reliably using the adjustment member.

Therefore, assembly to the guide rail becomes accurate, the rack is smoothly inserted into the conveyor chain, and the shutter unit is moved up and down smoothly.

[Brief explanation of the drawing]

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. A front view of the frame, and FIG. 4 is a plan view of the frame. 1... Slat, 1a... Frame,
2... Guide rail, 3... Storage box, 4... Link, 5... Long groove, 6
...Axis, 7. Death... Laura, 9...
...nut, 11...slat conveyance chain,
12.14...Chain tooth L13...
Chain roller, 15...Power transmission chain, 16...Rack, 17...Press roller, 18...Press member, 19...・Movement range adjustment member for roller 7.

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 whose both ends are engaged in a vertically movable manner, one end of which is attached to a roller shaft 6 that is slidable within a long groove 5 extending longitudinally in the frame 1a of the slat 1, and the other end of which is engaged with a roller shaft 6 that is slidable in a long groove 5 that extends in the longitudinal direction of the frame 1a of the slat 1; A link 4 which is pivotally attached to the frame 1a of the adjacent slat 1 and connects each slat 1, and a link 4 which is housed in a horizontally extending portion of the guide rail extending in the horizontal direction at the upper end of the guide rail 2, a storage box 3 that stores the slats 1 side by side, and a transport chain that runs within the movement path of the rack 16 provided near the upper end of the slat 1 and engages with the rank 16 to raise and lower the slat 1. 11, and a pressing roller 17 that is located within the moving path of the link 4 of the slat 1 and moves the slat 1 toward the storage box 3.
and the link 4 connecting each of the slats 1.
The contact surface with the pressing roller 17 has a cam shape, and one end of the link 4 is supported by a movement range adjusting member 19 attached to one end of the frame 1a of the slat 1 so as to be adjustable in movement in the longitudinal direction. A shutter device characterized in that the movement range of the roller shaft 6 is adjustable.