JPH0517092U - Middle pillar fixing device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] The center pillar suspended from the upper rail is automatically positioned at a predetermined position, and the center pillar that has been positioned can be fixed only by operating the handle, or fixed. Provision of a fixing device for the pillar that can be released. [Structure] A locking groove 17 is formed on the surface of the center pillar, and a latch block 13 attached to the locking rod 8 so as not to drop from a predetermined height can be moved up and down along the locking groove, and an upper rail It is configured such that the raised latch block can engage with the latch 18 disposed on the side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a center pillar fixing device for fixing a middle pillar of a shutter equipped with multiple curtains at a predetermined position.

[0002]

[Prior Art]

 When installing shutters at entrances and exits with a wide frontage width, the curtains are placed side by side from the top of the shutter curtain strength. Of course, even if it is not a large frontage, multiple curtains are often used when it is used as an entrance / exit of a garage, etc. In a shutter configured in this way, a middle pillar is provided between the curtains. The center pillar is suspended from the traveling rail and is movable, but when lowering the curtain, the middle pillar must be properly erected and fixed at a predetermined position.

The "fixing device for the center pillar" according to Japanese Patent Publication No. 62-45387 is provided with a latch protruding above the main body of the center pillar, and the latch is engaged with an engaging hole of a catch projecting on the lower surface of the storage box. By doing so, the center column is fixed, and the protrusion of the latch activates the center column detection switch. Therefore, it is possible to drive the shutter up and down with the middle pillar accurately and firmly held at a predetermined position. However, although the device automatically positions the device by the above-mentioned latch, a separate operation is required when fixing the center column and releasing the latch.

The “fixing device for the central pillar of the electric shutter for a building” according to Japanese Utility Model Laid-Open No. 1-90998 is a locking 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 retracted in the vertical direction. An engaging portion provided on the building side with which the lock rod engages, and a detection switch that senses the engagement of the lock rod and activates. However, in this fixing device, when the locking rod is projected and engaged with the engaging portion, the positioning means of the center column is not provided, and the positioning of the locking rod and the engaging portion is not smoothly performed. There's a problem.

[0005]

[Problems to be solved by the present invention]

 Thus, the above-mentioned problems remain in the conventional center pillar fixing device. The problems to be solved by the present proposal are these problems, and a fixing device capable of smoothly performing a series of operations such as positioning, fixing, and releasing of the central pillar by only operating a handle is provided.

[0006]

[Means for Solving the Problems]

 The center column fixing device of the present invention has 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 operation 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 storage case side of the shutter device. 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 above-mentioned latch block follows the movement of the locking rod and ascends along the locking groove, maintains a positional relationship in which it can be engaged with the ratch, and the sensing block that also moves up by the locking rod. Is attached to a position where the detection switch can be turned on. Here, the sensing block is fixed to the locking rod, but the latch block can be raised and lowered, but is attached while being supported so as not to fall from a predetermined position. The surface of the latch block slightly protrudes from the surface of the center column and 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]

[Action]

 The above-mentioned middle pillar is hung on a rail provided along the lower end of the storage case of the shutter device, and a traveling tool attached to the upper end of the middle pillar moves the rail to dispose the middle pillar at a predetermined position. This 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. In other words, the latch automatically engages with the locking groove formed on the surface of the center pillar to position it. 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 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. To do. When the detection switch is turned on, 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.

On the contrary, when the center rod fixed by being inserted into the fitting hole by the protrusion of the locking rod is moved, if the locking rod is retracted again by the handle operation, the locking rod is separated from the fitting hole. To do. However, since the latch block engaged with the latch is retracting the ratch as it is, that is, the tip of the latch block is disengaged from the locking groove and is located on the latch block surface, the center column does not have any shape. You can move without any obstacles. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0010]

【Example】

 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 near the vertical rail 2 side, but in this case, the fixed state is released and it is moved by the traveling tool 7 installed in the upper rail 5.

FIG. 1 is a schematic view showing the center pole 3. The running tool 7 (not shown) is attached to the upper end of the center pole 3 so that it can be suspended and moved by the upper rail 5. it can. As shown in the figure, the center pillar 3 projects locking rods 8 and 9 from the upper and lower ends thereof, and these locking rods 8 and 9 are fitted into fitting holes formed in the upper rail 5 and the floor surface 6. Thus, the center pillar 3 is fixed at a predetermined position, and the locking rods 8 and 9 can be put in and taken out by rotating the rotary plate 10. The rotary plate 10 rotates about the handle shaft 11, and links 12a and 12b are connected to both ends of the rotary plate 10. The links 12a 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. The sensing block 14 is fixed to the locking rod 8, but the latch block 13 is supported so as not to fall. It is only possible to move upwards along the locking rod 8. Since the latch block 13 and the sensing block 14 follow the locking rod 8 and ascend and descend, a locking groove 17 is formed vertically on the surface 15 of the center pillar 3 and along the locking groove 17. It moves up and down, and the latch is locked at the upper end.

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 into the locking groove 17 to position the center pillar 3. The latch 18 is attached to the upper rail 5 side, and a spring force is urged by a spring 19 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. To be done. A latch guide 20 is formed laterally on the surface 15 of the center pillar 3, and the tip of the latch 18 is retracted 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, it is also possible to function as the latch guide 20 by forming a tapered surface on the surface of the center pillar 3 without forming the latch guide 20 as a separate member in this way.

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 is supported by a pin 23 fixed to the locking rod 8. 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. In the case of a, the tip of the latch 18 is fitted into 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 thereof is locked by the locking groove 17. Leave from. That is, the latch block surface 24 with which the tip of the latch abuts when the latch 18 is engaged with the latch block 13 is in a position 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 center pillar 3 thus positioned is fixed by projecting the locking rods 8 and 9. The locking rods 8 and 9 are projected by rotating the rotary plate 10 by a hand operation, and the protruding locking rods 8 and 9 are fitting holes formed in the upper rail 5 and the floor 6. (Not shown). 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 since these structures are out of the scope of the present invention, The description is omitted.

As described above, since the center pillar 3 is fixed at a predetermined position by fitting the locking rods 8 and 9 into the fitting holes, the locking rods 8 and 9 are fitted into the fitting holes. The fact that the pillar 3 is correctly fixed means that the sensing block 14 attached to the locking rod 8 operates the detection switch. The detection switch (not shown) is attached to the upper rail side. Thus, the shutter curtain 1 operates only when it is confirmed that the locking rods 8 and 9 are fitted into the fitting holes by moving the detection block by moving the sensing block 14 as the locking rod 8 rises. Safely controlled to do. 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 hole, and the mounting position of the sensing block 14 may be limited to the locking rod 8. Absent. For example, the rotation angle of the rotating plate 10 can be detected.

However, the sensing block 14 shown in FIG. 2 has a horizontally long shape that protrudes to the center pillar surface 15 and extends 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 column fixing device is constructed without using the latch 18 and the latch block 13. That is, when detecting the movement of the locking rod 8 with one detection switch to control the left and right shutter curtains, a new relay circuit for guiding the operation of the above detection switch to both control circuits is provided. Although required, if the left and right detection switches are operated in the sensing block 14, a relay circuit is not required, and a 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 detached from the fitting holes as shown in c. The locking rods 8 and 9 can be easily disengaged by a handle operation, but in this case, the engagement between the latch block 13 and the latch 18 is released at the same time, and the latching groove 17 of the center pillar 3 is latched. Since 18 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, the latch block 13 will not move. Descends and stops at the pin 23 position. As described above, the center pillar fixing device of the present invention is provided with a latch at a predetermined position on the upper rail side, and the center pillar has a locking groove for locking the latch, and a locking projection protruding by a handle operation. A latch block is attached to the rod, and the following effects can be obtained.

[0019]

[Effect of the device]

 The center pillar that moves along the upper rail by the fixing device of the present invention is positioned by automatically fitting the latch that is placed at a predetermined position into the locking groove of the center pillar, so that the handle can be operated. The locking rod can be easily fitted into the fitting hole to fix the center pillar. On the other hand, even when releasing the fixation and storing the center column, 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. In other words, 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. Also, by making the sensing block horizontally long and projecting from the surface of the center pillar as shown in Fig. 2, it is possible to install detection switches on the left and right sides of it, and control the drive of the left and right shutter curtains with the middle pillar in between. The control circuit can be simplified. Furthermore, since the operation confirmation of the detection switch is visually confirmed, the maintenance of the electrical equipment becomes easy.

[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)

[Scope of utility model registration request] 1. 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 housing portion, and at a predetermined position of the connecting portion. In a middle pillar fixing device for fixing locking rods projecting from the upper and lower ends into 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. The engaging groove for engaging the latch and the vertical movement of the latch block at the height of the latch on the surface of the center column, and the latch block on the engaging rod do not fall from a certain height. A vertically movable pillar is supported, and an engaging portion that engages with the latch is formed at the upper end of the latch block on the latch side, and the surface of the latch block is slightly projected from the surface of the intermediate pillar. Fixing device. 2. A middle pillar of a shutter device having multiple curtains, the middle pillar being hung from and moved by an upper rail provided along a lower end of a curtain storage portion, and at a predetermined position of a connecting portion. In a middle pillar fixing device 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 sensing block is fixed to the locking rod, and the sensing block is An apparatus for fixing a central pillar, which has a horizontally elongated shape protruding from the surface of the central pillar and extends to both sides, and provided with a detection switch for detecting the approach of a sensing block.