JP2508917Y2 - Middle pillar fixing device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a center pillar fixing device for fixing a middle pillar of a shutter having a multiple curtain to a predetermined position.

[0002]

2. Description of the Related Art When a shutter is installed at a doorway having a wide frontage width, the curtains are connected to the left and right in view of the strength of the shutter curtain. Of course, even if the frontage is not a large frontage, a multi-curtain is often used when it is used as an entrance / exit of a garage or the like, and in a shutter having such a structure, a middle pillar is provided between the curtains. The center pillar is suspended from the traveling rail and is in a movable state. However, when lowering the curtain, the middle pillar must be properly erected and fixed at a predetermined position.

In Japanese Patent Publication No. 62-45387, a "fixing device for a central pillar" is provided with a latch protruding above the main body of the central pillar, and the latch is engaged with an engaging hole of a catch projecting on the lower surface of the storage box. The central column is fixed by means of, and the central column detection switch is operated by the protrusion of the latch. Therefore, it is possible to drive the shutter up and down while accurately and firmly holding the center pillar at a predetermined position.
However, in this device, although the automatic positioning is performed by the above-mentioned latch, another operation is required when fixing the middle pillar and releasing the latch.

The "fixing device for the central pillar of an electric shutter for a building" according to Japanese Utility Model Laid-Open No. 1-90998 is a lock rod that is arranged at an inner position that does not project from the front and rear surfaces of the central pillar and that can be retracted and operated in the vertical direction. An engaging portion provided on the building side with which the lock rod engages, and a detection switch that senses engagement of the lock rod and is activated. However, in this fixing device, when the lock rod is projected and engaged with the engaging portion,
There is a problem that the lock rod and the engaging portion are not smoothly aligned because the center rod positioning means is not provided.

[0005]

As described above, the above-mentioned problems remain in the conventional center pillar fixing device. The problems that the present invention seeks to solve are these problems.
(EN) Provided is a fixing device capable of smoothly performing a series of operations such as positioning, fixing, and releasing of the center pillar by only operating a handle.

[0006]

The center pillar fixing device of the present invention is constructed with the following features. That is, the middle pillar has locking rods protruding from the upper and lower ends, and the middle pillar is provided with an operating handle for projecting the locking rod. A latch block and a sensing block are attached to the locking rod at the upper end of the center column, while a latch is provided on the side of the shutter device housing case. Here, a predetermined elastic force is constantly applied to the latch so as to project toward the center pillar, and the latch can be engaged with a locking groove formed in the center pillar.
Then, the latch block follows the movement of the locking rod and ascends along the locking groove so as to maintain the positional relationship in which it can be engaged with the latch. It is attached to a position where it can be turned on. Here, the sensing block is fixed to the locking rod, but the latch block can be moved up and down, but is attached while being supported so as not to drop from a predetermined position. The surface of the latch block slightly protrudes from the surface of the center column, has an engaging portion for engaging with the latch, and the tip of the latch in the engaged state is located on the surface of the latch block.
In addition to this, the present invention does not limit the device required for suspending and moving the center pillar.

[0007]

The above-mentioned middle pillar is hung on the rail provided along the lower end of the storage case of the shutter device, and the traveling tool attached to the upper end of the middle pillar moves the rail to dispose the middle pillar at a predetermined position.
Such operation is the same as the conventional type of pillar, but the pillar which has been moved to a predetermined position is automatically positioned by the latch. That is, the latch automatically engages with the locking groove formed on the surface of the center pillar to position it, and the latch provided at the predetermined position moves along the latch guide along the latch groove due to the movement of the center pillar. Fit in. In this state, the locking rod is projected by operating the handle, and the locking rod is fitted into the fitting holes formed on the upper rail side and the floor surface side.

Here, the latch block and the sensing block attached to the locking rod at the upper end of the center column rise together with the locking rod, the latch block engages with the latch, and the sensing block turns on the detection switch. . The detection switch is O
When it becomes N, the drive motor of the shutter curtain becomes operable, but the drive motor does not operate unless the detection switch is turned on. That is, the curtain is controlled so that it cannot be lowered. Thus, without using the above-mentioned latch, latch block and sensing block as the positioning means for the center pillar, the sensing block is attached to the locking rod, and the rising of this sensing block is detected by the sensing switch, thereby It is also possible to confirm that has been fitted and fixed in the fitting hole.

On the contrary, when the center rod fixed into the fitting hole by the protrusion of the locking rod is moved, the locking rod is retracted by operating the handle again, and the locking rod is separated from the fitting hole. To do. However, since the latch block engaged with the latch is retracted with the latch block in the same state, that is, the tip of the latch block is disengaged from the locking groove and is located on the surface of the latch block, the center column has no obstacle. You can move without it. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0010]

FIG. 4 shows a general multiple curtain shutter device. In the figure, 1 is a curtain, 2 is a vertical rail, 3 is a middle pillar, 4 is a storage case, 5 is an upper rail, and the curtain 1 is guided by the vertical rail 2 and the middle pillar 3 to move up and down. The storage case 4 is for storing the curtain 1 that rises to open the frontage, and an upper rail 5 is provided along the lower end of the storage case 4, and the middle pillar 3 has the upper rail 5 and the floor surface. It stands and is fixed vertically between 6 and. Then, the center pillar 3 can be stored close to the vertical rail 2 side, but in this case, the fixed state is released, and the middle pillar 3 is moved by the traveling tool 7 installed in the upper rail 5.

FIG. 1 is a schematic view showing the center pillar 3. The running tool 7 (not shown) is attached to the upper end of the center pillar 3.
It can be suspended and moved on the upper rail 5. Middle pillar 3
Shows the locking rods 8 and 9 from the upper and lower ends as shown in FIG.
And the locking rods 8 and 9 are fitted into the fitting holes formed in the upper rail 5 and the floor surface 6, whereby the center pillar 3 is fixed at a predetermined position. , 9 can be moved in and out by rotating the rotary plate 10. Rotating plate 1
0 rotates about the handle shaft 11, and links 12a and 12b are connected to both ends thereof.
2a and 12b are connected to the locking rods 8 and 9.

A latch block 13 and a sensing block 14 are attached to the upper locking rod 8, and the sensing block 14
Is fixed to the locking rod 8, but the latch block 1
3 is only supported so as not to fall, and can move upward along the locking rod 8. The latch block 13 and the sensing block 14 follow the locking rod 8 and ascend and descend, so that the surface 15 of the center pillar 3 is prevented.
An engaging groove 17 is formed on the upper and lower sides, moves up and down along the engaging groove 17, and a latch is engaged with the upper end thereof.

FIG. 2 shows a state in which the latch 18 is locked in the locking groove 17, and the tip of the latch 18 is fitted in the locking groove 17 to position the center pillar 3. The latch 18 is attached to the upper rail 5 side, and a spring 19 biases the spring 18 so as to project toward the center pillar 3. Of course, since the latch 18 is arranged at a predetermined position where the center pillar 3 should be fixed, the center pillar 3 moving along the upper rail 5 is positioned by fitting the latch 18 into the locking groove 17. It A latch guide 20 is formed laterally on the surface 15 of the center pillar 3, and the tip of the latch 18 retracts along the tapered surface of the latch guide 20 and is fitted into the locking groove 17 at the position of the locking groove 17. If it does, it will return to the original state. However, without forming the latch guide 20 as a separate member in this way,
It is also possible to function as the latch guide 20 by forming a tapered surface on the surface of the center pillar 3.

The operation of the latch block 13 and the latch 18 is shown in FIGS. As shown in the figure, the latch block 13 has a small engaging portion 21 at the upper end on the latch side, has a tapered surface 22, and has a locking rod 8
It is supported by a pin 23 fixed to. Therefore, when the locking rod 8 rises, the latch block 13 is also pushed up and engages with the latch 18 as shown in b. a
In the case of 1, the tip of the latch 18 is fitted in the locking groove 17 of the center pillar 3, but in the case of b, the latch 18 is retracted by the latch block 13 and the tip is separated from the locking groove 17. To do. That is, the latch 18 is the latch block 1
The latch block surface 24 with which the latch tip abuts in the state of being engaged with 3 is slightly protruding from the surface 15 of the center column 3.

Since the center pillar 3 is positioned by the latch 18 in the state of a, the positioned center pillar 3 is fixed by projecting the locking rods 8 and 9. The locking rods 8 and 9 are projected by turning the rotary plate 10 by operating a handle, and the protruding locking rods 8 and 9 are fitted into holes (not shown) formed in the upper rail 5 and the floor surface 6. ). Of course, a stopper for restricting the rotation of the rotary plate 10 is separately provided so that the once-inserted locking rods 8 and 9 do not come off by themselves, but these structures are out of the scope of the present invention. The description is omitted.

As described above, the center pole 3 is fixed at a predetermined position by fitting the locking rods 8 and 9 into the fitting holes, and the locking rods 8 and 9 are fitted into the fitting holes. The correct fixing of the pillar 3 means that the sensing block 1 attached to the locking rod 8
4 can be confirmed by operating the detection switch.
Attach the detection switch (not shown) to the upper rail side .
It is provided near the switch . In this way, the locking rod 8
The safety control is performed so that the shutter curtain 1 operates only when it is confirmed that the locking rods 8 and 9 have been fitted into the fitting holes by moving the sensing block 14 as the sensor block 14 moves upward. Of course, the above-mentioned sensing block is only one means for confirming the fitting of the locking rods 8 and 9 into the fitting holes, and the mounting position of the sensing block 14 may be limited to the locking rod 8. Absent. For example, the rotating plate 10
It is also possible to detect the rotation angle of.

However, the sensing block 14 shown in FIG. 2 has a horizontally elongated shape protruding toward the surface 15 of the center column and extending to both sides, and if sensing switches are arranged on the left and right sides of the sensing block 14, one sensing block is provided. The left and right curtains can be controlled by 14, and the operation of the detection switch can be visually confirmed. This is also effective when the center pillar fixing device is constructed without using the latch 18 and the latch block 13. That is, when the movement of the locking rod 8 is detected by one detection switch to control the left and right shutter curtains, a new relay circuit for guiding the operation of the detection switch to both control circuits is required. However, if the left and right detection switches are operated by the sensing block 14, a relay circuit is not required, and the detection switch may be incorporated in each switch control circuit.

On the contrary, when the fixed center pillar 3 is moved and stored, the locking rods 8 and 9 must be removed from the fitting holes as shown in c. The disengagement of the locking rods 8 and 9 can be easily performed by operating the handle. In this case, the engagement between the latch block 13 and the latch 18 is released at the same time, and the latch 18 is inserted into the locking groove 17 of the center pillar 3. If it has entered, the middle pillar 3 cannot be moved, but the latch block 13 remains engaged with the latch 18, and only the locking rod 8 descends. Since the latch 18 remains retracted, the center pillar 3 can move along the upper rail 5, and if the movement disengages the latch 18 from the latch 18, the latch block 13 can be moved by its own weight. It descends and stops at the pin 23 position. As described above, the center column fixing device of the present invention is provided with a latch at a predetermined position on the upper rail side, and the center column is provided with a locking groove for locking the latch.
Further, since the latch block is attached to the locking rod protruding by the handle operation, the following effects can be obtained.

[0019]

The center post moving along the upper rail by the fixing device of the present invention is positioned by automatically fitting the latch arranged at a predetermined position into the locking groove of the center post. By operating the handle, the locking rod can be easily inserted into the fitting hole to fix the center pillar. On the contrary, even when the fixation is released and the center pillar is stored, even if the locking rod is disengaged from the fitting hole by the handle operation, the engagement state of the latch block engaged with the latch is not released. You can move the middle pillar as it is. That is, the central pillar can be fixed and released only by operating the handle, the operation is simpler than that of the conventional device, and the safety is improved. Further, as shown in FIG. 2, the sensing block has a laterally elongated shape protruding from the surface of the center pillar, so that detection switches can be provided on the left and right sides of the sensing block, and the driving of the left and right shutter curtains with the middle pillar in between is controlled, The control circuit can be simplified. That is, the center pillar is not inserted into the fitting hole of the locking rod.
Shutter car only when it is firmly positioned and fixed.
The left and right shutter curtains allow the ten to be opened and closed.
In order to control the drive of the drive
An output switch is provided, and the detection switch is a horizontally long one.
The operation is controlled by the sensing block . Further sensing block
Is visible whether or not the detector switch is activated
The sensing block simply taps the detection switch (ON /
(OFF) Maintenance is easy because the structure is extremely simple.
Easy and cheap .

[Brief description of drawings]

FIG. 1 is an embodiment of a center pillar having a fixing device of the present invention.

FIG. 2 shows a state in which a latch is fitted in a locking groove of a center pillar.

FIG. 3 shows an operation sequence of a latch and a latch block.

FIG. 4 is a shutter device provided with multiple curtains.

[Explanation of symbols]

 1 Curtain 2 Vertical Rail 3 Middle Pillar 4 Storage Case 5 Upper Rail 6 Floor 7 Traveling Tool 8 Locking Rod 9 Locking Rod 10 Rotating Plate 11 Handle Shaft 12 Link 13 Latch Block 14 Sensing Block 15 Surface 17 Locking Groove 18 Latch 19 Spring 20 Latch guide 21 Engagement part 22 Tapered surface 23 Pin 24 Surface

Claims (2)

(57) [Scope of utility model registration request] 1. A central pillar of a shutter device provided with multiple curtains, the central pillar being suspended and moved by an upper rail provided along the lower end of the curtain storage portion, and at a predetermined position of the connecting point. In a fixing device for a center pillar, in which locking rods protruding from the upper and lower ends are fitted and fixed in fitting holes formed on the upper rail side and the floor surface side, a latch biasing an elastic force at a predetermined position on the upper rail side. Is disposed on the surface of the center column, and the engaging groove of the latch is movable at the height of the latch and the latch block can be moved up and down. A latch block supported by a support pin provided on the locking rod at a lower position is provided, and an engaging portion that engages with the latch is formed at a position slightly protruding from the surface of the center pillar on the upper end of the latch block on the latch side. And engage the latches on both sides of the top surface of the center column. And a latch guide for retracting the latch. 2. A middle pillar of a shutter device having multiple curtains, the middle pillar being hung and moved by an upper rail provided along the lower end of the curtain storage portion, and at a predetermined position of the connecting portion. In a middle pillar fixing device for fixing locking rods protruding from the upper and lower ends into fitting holes formed on the upper rail side and the floor surface side, a sensing block is fixed to the locking rods, and the sensing block is Center pillar characterized by having a horizontally long shape protruding from the surface of the center pillar and extending to both sides, and equipped with a detection switch on the upper rail to detect the position of the sensing block that moves following the vertical movement of the locking rod. Fixing device.