JP7381788B2 - Shutter device with locking device - Google Patents

Description

The present invention relates to a shutter device with a locking device that makes it impossible to open and move a fully closed shutter curtain, such as a vehicle-mounted shutter device installed on the loading platform of a vehicle such as a fire engine. It can be used for

Patent Document 1 and Patent Document 2 listed below disclose a shutter device with a locking device that makes it impossible to open and move a fully closed shutter curtain. In these shutter devices, a locking member is arranged on a shutter curtain that can be moved up and down to open and close while being guided by a guide rail, so that the locking member can move forward and backward toward the guide rail. By being locked to the locked member disposed on the guide rail, the fully closed shutter curtain is locked and cannot be opened and moved.

JP2014-237923A

JP 2019-60197 Publication

In these shutter devices with a locking device, in order to lock the fully closed shutter curtain so that it cannot be opened and moved, a locked member that is locked by the tip of the advanced locking member is prepared; Work must be performed to arrange this locked member on a guide rail for guiding the opening and closing movement of the shutter curtain.

An object of the present invention is to lock a fully closed shutter curtain so that it cannot be opened and moved by advancing a locking member without placing a locked member on a guide rail. The present invention provides a shutter device with a device.

In the shutter device with a locking device according to the present invention, a locking member is disposed on a shutter curtain that is guided by a guide rail and can be moved vertically to open and close, and a locking member is arranged so as to be movable toward the guide rail. In the shutter device with a locking device in which the fully closed shutter curtain is locked and cannot be moved by moving forward, an opening is formed in the guide rail, and a hole member is press-fitted into the opening. By this, the hole member is fixed to the guide rail, and the tip of the advanced locking member is inserted into the hole member, thereby locking the fully closed shutter curtain. It is characterized by being provided with a hole that opens and becomes immovable.

Therefore, according to the shutter device with a locking device according to the present invention, the forward end of the locking member can be inserted into the hole provided in the hole member without placing the locked member on the guide rail. By doing so, it is possible to lock the fully closed shutter curtain and make it impossible to open and move it.

In the shutter device with a locking device according to the present invention, the hole provided in the hole member can be a hole that penetrates in the forward direction of the locking member.

Moreover, in the shutter device with a locking device according to the present invention, the guide rail can be made of metal, and the hole member can be made of synthetic resin.

According to this, the guide rail is made of metal and the hole member is made of synthetic resin, so the tip of the locking member is inserted into the hole provided in the hole member to lock the shutter curtain with the locking device. When doing so, it is possible to prevent abnormal noises from occurring.

Further, in the shutter device with a locking device according to the present invention, the hole member fixed to the guide rail by press fitting into the opening formed in the guide rail has both ends protruding from the opening. can be taken as a thing.

Furthermore, the hole member is press-fitted into the opening formed in the guide rail from the forward direction of the locking member, and the hole member is pressed into the guide rail from the forward direction of the locking member. It may be provided with a flange portion that contacts.

According to this, in order to lock the shutter curtain with the locking device, even if the forward end of the locking member comes into contact with the inner surface of the hole provided in the hole member, the hole member does not open the guide rail. The flange part can prevent it from being pushed out from the part.

In addition, the hole provided in the hole member is formed into an upper inclined inner surface which is inclined diagonally downward with respect to the forward direction of the locking member, and a lower inclined inner surface which is sloped diagonally upward with respect to the forward direction of the locking member. At least one of the side inclined inner surfaces may be provided.

Moreover, the hole provided in the hole member can be provided with both the upper inclined inner surface portion and the lower inclined inner surface portion.

Furthermore, when the hole provided in the hole member is provided with both the upper inclined inner surface portion and the lower inclined inner surface portion, the hole is formed in the forward direction of the locking member. The front portion of the locking member may include a horizontal or substantially horizontal hole main body portion connected to a front end in the forward direction of the locking member for the upper inclined inner surface portion and the lower inclined inner surface portion. can.

Moreover, the shutter device with a locking device according to the present invention can be configured such that a handle bar that is operated when opening and moving the shutter curtain upward is provided on the seat plate of the shutter curtain.

In this way, when the seat plate of the shutter curtain is provided with a handle bar that is operated when opening and moving the shutter curtain upward, the handle bar is attached to the seat plate, and the handle bar is attached to the seat plate. The shutter curtain, which has reached the fully closed position, is opened upward when the handle bar comes into contact with the guide rail. A stop member can be coupled to maintain the fully closed state without movement.

Then, an elastic force by an elastic member for constantly swinging and biasing the holding member about the central axis can be applied to the hand-held bar, and this elastic force can cause the hand-held bar to abut against the stop member. .

Further, by providing a recess in the stop member and fitting the handle bar into the recess, the handle bar can be brought into contact with the stop member.

The present invention described above can be applied to a shutter device for any purpose. Therefore, the shutter device to which the present invention is applied may be a vehicle-mounted shutter device installed on the loading platform of a vehicle such as a fire engine, or an entrance/exit shutter device installed at the entrance of a building such as a store or warehouse. It may also be a window shutter device installed on a window.

According to the present invention, by moving the locking member forward without placing the locked member on the guide rail, the fully closed shutter curtain can be locked and cannot be opened and moved. You can get

FIG. 1 is a front view showing a shutter device with a locking device according to an embodiment of the present invention. FIG. 2 is a side view showing a portion of the shutter curtain including a seat plate portion. FIG. 3 is a diagram showing the structure of the back side of the shutter device with a locking device of FIG. 1. FIG. 4 is an enlarged view of the seat plate of the shutter curtain, in which (A) is a plan view showing a guide rail in cross section, and (B) is a front view. FIG. 5 is a partially enlarged view of FIG. 4(A). FIG. 6 is a view taken along the line S6 in FIG. 4(B). FIG. 7 is a sectional view taken along line S7-S7 in FIG. Figure 8 is a side view showing that when the shutter curtain is fully closed, the handle bar provided on the seat plate engages with the stop member attached to the guide rail, thereby maintaining the shutter curtain in the fully closed state. It is a diagram. FIG. 9 is a side view showing when the handle bar is removed from the stop member. FIG. 10 is a side view showing that the handle bar is guided by the inclined surface of the stop member when the shutter curtain is moving toward the fully closed position. FIG. 11 is a diagram showing the internal structure of the seat plate of the shutter curtain, and is a front view showing that a locking member operated by a locking device is housed inside the seat plate so as to be movable forward and backward. FIG. 12 is a diagram similar to FIG. 11 showing a state in which the tip of the advanced locking member is inserted into the hole provided in the guide rail, and the fully closed shutter curtain opens and becomes immovable. be. FIG. 13 is a diagram similar to FIG. 11 showing a first alternative embodiment of the tip of the locking member. FIG. 14 is a view similar to FIG. 11 showing a second alternative embodiment of the tip of the locking member. FIG. 15 is a diagram similar to FIG. 11 showing another embodiment of holes provided in the guide rail. FIG. 16 is a partially enlarged view of FIG. 15.

EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. The shutter device with a locking device according to the present embodiment is a vehicle-mounted shutter device installed on the loading platform of a fire engine, and FIG. 1 shows a state in which the shutter curtain 1 of this vehicle-mounted shutter device is in the fully closed position. It is a front view showing a state. The shutter curtain 1 is formed of a bottom seat plate 2 and a large number of slats 3 connected to the upper side of the seat plate 2. A pair of left and right guide rails 5 connected to the frame member 4 are disposed, and inside these guide rails 5, both lengthwise ends of the seat plate 2 and slats 3, which are both ends of the shutter curtain 1 in the width direction, are arranged. The shutter curtain 1 is guided by a pair of left and right guide rails 5, and is moved vertically by the winding and unwinding action of the winding shaft, which will be described later, to open and close the seat plate 2. When the lower end comes into contact with the lower frame member 6, the shutter curtain 1 is fully closed.

FIG. 2 shows a side view of a portion of the shutter curtain 1 including the seat plate 2. As shown in FIG. As shown in FIG. 2, an airtight member 7 made of an elastic material is attached to the lower end of the seat plate 2, and when the airtight member 7 comes into contact with the lower frame member 6, the shutter curtain 1 has reached the fully closed position. Further, a curled portion 2A is formed at the upper end of the seat plate 2, and an upper curled portion 3A and a lower curled portion 3B are formed at both upper and lower ends of each slat 3. Of each slat 3, the lower curl portion 3B of the slat 3 disposed above the seat plate 2 and the curl portion 2A of the seat plate 2 are rotatably engaged in the thickness direction of the shutter curtain 1. In addition, in each slat 3, the lower curl part 3B of the upper slat 3 and the upper curl part 3A of the lower slat 3 are rotatably engaged in the thickness direction of the shutter curtain 1. As a result, the seat plate 2 and a large number of slats 3 are vertically connected.

In this embodiment, as shown in FIG. 2, an overhanging portion 2B that overhangs forward is formed on the upper part of the seat plate 2, and this overhanging portion 2B is as shown in FIG. , is formed over almost the entire length of the seat plate 2 in the width direction of the shutter curtain 1, excluding the end inserted into the guide rail 5 and the vicinity of this end, and both ends of the overhanging part 2B. An end member 8 is attached to the portion. Furthermore, as shown in FIG. 2, end members 9 are attached to both ends of the seat plate 2 in the width direction of the shutter curtain 1 with screws 10, and these ends have openings 9A formed therein. The member 9 is attached to the inner wall portion 5B (see FIG. 5) of the guide groove 5A formed in the guide rail 5 in order to guide the opening and closing movement of the shutter curtain 1 even if the seat plate 2 shifts in the width direction of the shutter curtain 1. This is to prevent the seat plate 2 from coming into direct contact with (see).

FIG. 3 shows the structure of the back side of the shutter device with a locking device according to the present embodiment, with the shutter curtain 1 half open. Further, FIG. 3 shows an upper frame member 11 disposed above the left and right side frame members 4 to which the pair of left and right guide rails 5 are coupled. As shown in FIG. 1, a bar member 12 that spans over the pair of left and right guide rails 5 is attached. As shown in FIG. 3, brackets 13 are attached to the upper rear surfaces of the left and right side frame members 4, and these brackets 13 have a winding shaft 14 for winding and unwinding the shutter curtain 1. A supporting bearing portion 13A is provided. The winding shaft 14 is inserted into a main body 15 to which the upper end of the shutter curtain 1 is connected via a hanging member (not shown), and is inserted into the main body 15. It consists of a central shaft 16 protruding from the main body 15, and both ends 16A of this central shaft 16 are non-rotatably fixed and supported by fasteners 17 such as bolts to a bearing portion 13A. In addition, guide rollers 18 are attached to each bracket 13 via attachment members 19 at locations hidden by the bar members 12, and these guide rollers 18 are rotatable about horizontal axes. This is for guiding the shutter curtain 1 from the upper end of the guide rail 5 to the winding shaft 14 side.

The main body 15 of the winding shaft 14 is rotatably disposed on the outer periphery of the central shaft 16 by a bearing member, and a return spring made of a torsion coil spring is disposed between the main body 15 and the central shaft 16. Therefore, when the shutter curtain 1 reaches the fully open position or the half open position, if a downward force is applied to the overhanging portion 2B of the seat plate 2 to close and move the shutter curtain 1 downward, the main body 15 will move the shutter curtain 1 The spring rotates to feed out the spring, and this rotation causes the return spring force to accumulate in the return spring. Further, as will be described later, when opening and moving the shutter curtain 1 upward, the main body 15 rotates in the direction to wind up the shutter curtain 1 due to the return spring force accumulated in the return spring, and the shutter curtain 1 The fully open position is reached by winding up.

The seat plate 2 and the mounting member 19 shown in FIG. 3 are provided with a fully open position defining means 20 for defining the fully open position of the shutter curtain 1. As shown in the figure, unlike the door stop member 21 on the shutter curtain 1 side provided on the back of the seat plate 2 and the shutter curtain 1 that moves to open and close, it is an immovable member like the guide rail 5, bracket 13, etc. It consists of a door stop member 22 on the immovable member side provided on the mounting member 19 that is attached to the door. The door stop member 21 on the shutter curtain 1 side is made of pressed sheet metal, and a part 21A of this door stop member 21 is fixed to the back of the seat plate 2 with a fastener 23 such as a screw, The remaining portion 21B covers the back surface of the guide rail 5 with a gap left in between. When the shutter curtain 1 opens and moves upward due to the return spring force of the above-mentioned return spring and the seat plate 2 reaches near the guide roller 18, the back side of the guide rail 5 of the door stop member 21 on the shutter curtain 1 side The covering portion 21B contacts the door stop member 22 on the stationary member side, thereby stopping the upward movement of the shutter curtain 1, and the shutter curtain 1 reaches the fully open position.

As shown in FIG. 1, a handle bar 25 is disposed in front of the seat plate 2 of the shutter curtain 1, and is operated when opening and moving the shutter curtain 1 upward. 4 is an enlarged view showing a portion of the seat plate 2, FIG. 4(A) is a plan view showing a cross-sectional view of the guide rail 5, and FIG. 4(B) is a front view. As shown in FIG. 4, the handle bars 25 have a length in the left and right direction that reaches the pair of left and right guide rails 5, and four hand bars 25 are arranged in the left and right direction in the front part of the seat plate 2. The handle bar 25 is inserted into the inside of the holding member 26 provided, and the handle bar 25 is attached to the holding member 26 by a fixing device 27 (see FIG. 7) such as a screw screwed into the bottom surface of each holding member 26. By being fastened to the holding members 26, the handle bar 25 is held by these holding members 26. It should be noted that two of the four holding members 26 each have a left-right symmetrical shape.

7 is a sectional view taken along the line S7-S7 in FIG. 1, and as shown in FIG. 30 are connected by a connector 31 made of bolts and nuts. Each holding member 26 is provided with a recess 26A formed from the back side, and each base member 30 is formed with a protrusion 30A inserted into the recess 26A. A central shaft 32 whose axial direction is horizontal is inserted through the hole provided in the holding member 30A and the holding member 26. Therefore, the holding member 26 is centered with respect to the base member 30 and the seat plate 2. It is freely swingable in the vertical direction about the shaft 32. In addition, as shown in FIG. 6, which is a view taken from the S6 arrow in FIG. It consists of.

In addition, between the holding member 26 and the base member 30, the holding member 26 is constantly urged to swing downward about the central axis 32 with respect to the base member 30 and the seat plate 2, and the hand-holding bar 25 and the holding member 26 are An elastic member is provided that presses the member 26 toward the guide rail 5 side. This elastic member is a torsion coil spring 33, and as shown in FIGS. 6 and 7, both ends 33A of the torsion coil spring 33 are engaged with the upper surface of the protrusion 30A of the base member 30. On both left and right sides of the projection 30A, there are two coil parts 33B wound around the outer periphery of the central shaft 32, and a recessed part 26A of the holding member 26, which is an intermediate part between these coil parts 33B. It consists of a locking portion 33C that is locked to the tip of the lower surface of.

As shown in FIG. 4, a stop member 35 is provided on the front surface of each of the pair of left and right guide rails 5 at a location close to the lower end of these guide rails 5. As shown in FIG. 5, they are connected by a bolt and nut connector 36. As shown in FIG. 8, the front surface of these stop members 35 has an inclined surface 35A that slopes and projects diagonally forward as it extends downward, and at the lower end of this inclined surface 35A, the shutter curtain 1 A recessed portion 35B recessed toward the rear in the thickness direction is provided.

Therefore, when the shutter curtain 1 has reached the fully closed position described above and both longitudinal ends of the handle bar 25 are fitted into the recesses 35B of the stop member 35, the handle bar 25 is held. As described above, the holding member 26 is pressed toward the guide rail 5 around the central axis 32 by the elastic biasing force of the torsion coil spring 33, so that both ends of the hand bar 25 in the length direction does not escape from the recess 35B. As a result, the shutter curtain 1 does not open and move upward due to the return spring force of the above-mentioned return spring, but is maintained in a fully closed state by the stopping action of the stop member 35. Therefore, even if the shutter curtain is not opened upward by the locking device described later and is not locked so that it cannot be moved, when a fire engine equipped with a shutter device with a locking device according to the present embodiment is traveling on a rough road. etc., the opening movement of the shutter curtain 1 can be prevented by the handle bar 25 and the stop member 35.

As shown in FIG. 5, the guide rail 5 has two extensions extending inward in the width direction of the shutter curtain from the back wall 5B to form the guide groove 5A. At the same position in the thickness direction of the shutter curtain 1 as the extending portions 5C and 5D which are spaced apart in the thickness direction of the shutter curtain 1, from the back wall portion 5B in the width direction of the shutter curtain 1. It has two protruding parts 5E and 5F protruding outward. Further, the guide rail 5 is provided with an extension portion 5G extending from the back wall portion 5B to the front side, and an extension portion 5H parallel to the extension portions 5C and 5D is provided at the tip of the extension portion 5G. is provided extending inward in the width direction of the shutter curtain 1, and the above-mentioned stop member 35 is coupled to this extension portion 5H with a coupling tool 36. Further, the extension portion 5G is provided with a protrusion portion 5I that is parallel to the protrusion portions 5E and 5F and protrudes outward in the width direction of the shutter curtain 1.

The guide rail 5 having such a shape is an extrusion molded product or a pultrusion molded product made of aluminum or aluminum alloy. Therefore, the guide rail 5 has a planar cross-sectional shape shown in FIG. It is continuous in the vertical direction, which is the length direction of 5.

Further, as shown in FIG. 5, there is a gap between the guide rail 5 and the side frame member 4 to which this guide rail 5 is coupled. A gap cover member 37 is arranged to close the gap. This gap cover member 37 has a front surface portion 37A joined to the front surface of the side frame member 4 by welding or the like, and extends from the inner end of the front surface portion 37A in the width direction of the shutter curtain 1 in the thickness direction of the shutter curtain 1. The guide rail 5 has a channel shape and includes a bent part 37B that is bent and intrudes between the guide rail 5 and the side frame member 4. The gap cover member 37 and the side frame member 4 are coupled to each other by a coupling member 38 such as a screw that reaches the frame member 4 .

When the guide rail 5 is coupled to the gap cover member 37 and the side frame member 4 by the coupling tool 38 in this way, the tips of the three protrusions 5E, 5F, and 5I provided on the guide rail 5 are arranged in the gap. It is in contact with the bent portion 37B of the cover member 37. Therefore, the space S between the two protruding parts 5E, 5F among the three protruding parts 5E, 5F, 5I is closed on the outside in the width direction of the shutter curtain 1 by the bent part 37B of the gap cover member 37. It is a deserted space.

FIG. 7 shows a longitudinal cross-sectional shape of the seat plate 2. As shown in FIG. As shown in FIG. 7, the seat plate 2 consists of a main body 40 on the front side and a cover member 41 on the back side, and the main body 40 and the cover member 41 are also made of aluminum like the guide rail 5. Or it is formed by an extrusion molded product or a pultrusion molded product made of aluminum alloy. A rising portion 40A is formed on the lower back surface of the main body 40 where the above-mentioned overhanging portion 2B is formed, and a bifurcated portion 41A provided at the lower end of the lid member 41 is fitted into this rising portion 40A, and the lid is closed. The upper end of the member 41 is fixed to the hanging part 40B formed on the back surface of the upper part of the main body 40 with a fixing device 42 such as a screw, so that the main body 40 and the lid member 41 are combined to form a seat plate. 2 is formed.

The main body 40 includes a screw pocket portion 40C into which the screw 10 shown in FIG. A second guide portion 40E facing upward and having an L-shape is provided. Further, as described above, the overhanging portion 2B of the seat plate 2 is the entire length of the shutter curtain 1 in the width direction of the seat plate 2, excluding the end portion inserted into the guide rail 5 and the vicinity of this end portion. , since it is formed over almost the entire length, the main body 40 provided with the overhanging part 2B is formed by extrusion molding or pultrusion molding as described above, and then the overhanging part formed by these extrusion molding or pultrusion molding It is formed by cutting out unnecessary parts of the whole.

As shown in FIG. 1, the shutter curtain 1 is locked at the center of the seat plate 2 in the left-right direction when it is fully closed, and the shutter curtain 1 is locked upward. A locking device 45 is provided to prevent opening and movement. FIG. 11 shows the internal structure of the seat plate 2, in which the seat plate 2 and the locking device 45 are shown by two-dot chain lines. The locking device 45 is a cylinder lock type having an outer cylinder member 45A fixed to the seat plate 2 and an inner cylinder member 45B normally connected to the outer cylinder member 45A via a tumbler. When the plate key inserted into the keyhole 45C formed in the inner cylinder member 45B releases the connection between the outer cylinder member 45A and the inner cylinder member 45B by the tumbler and rotates the plate key, the inner cylinder member 45B also rotates. A pinion gear 46 is connected to the inner cylinder member 45B, and the pinion gear 46, which is disposed inside the seat plate 2, rotates together with the inner cylinder member 45B by rotating the plate key.

Further, as shown in FIG. 11, two rack members 50 and 51 are also arranged inside the seat plate 2, and these rack members 50 and 51 are located at opposite positions of the pinion gear 46. Rack parts 50A, 51A that mesh with the upper and lower parts thereof, and extension parts 50B, 51B that extend from these rack parts 50A, 51A to the same or approximately the same height position in the seat plate 2, It has connecting portions 50C, 51C extending from these extending portions 50B, 51B to the outside in the width direction of the shutter curtain 1, which is the outside in the length direction of the seat plate 2. Two locking members 52 are arranged inside the seat plate 2 and have a length that extends outward in the width direction of the shutter curtain 1 from the connecting portions 50C and 51C side, and extends toward the guide rail 5. Of these locking members 52 extending from one side to the other and formed of a flat bar, the base end of one of the locking members 52 is connected to the connecting portion 50C of the rack member 50 by a connecting member 53, and the base end of one of the locking members 52 is A base end portion of the locking member 52 is connected to a connecting portion 51C of the rack member 51 by a connecting member 54.

As shown in FIG. 7, the locking member 52 is arranged in the width direction of the shutter curtain 1 between the first guide part 40D and the second guide part 40E provided on the main body 40 of the seat plate 2. The locking member 52 is arranged to be slidable, and therefore, a guide portion 55 is formed inside the seat plate 2 by the first guide portion 40D and the second guide portion 40E to guide the sliding movement of the locking member 52. . The height position in the seat plate 2 where this guide portion 55 is provided matches the height position of the opening 9A provided in the end member 9 shown in FIG. In FIG. 11, when the inner cylinder member 45B and pinion gear 46 are rotated to the right by the plate key inserted into the keyhole 45C, the two locking members 52 are guided by the guide portion 55 inside the seat plate 2. Moving forward to the outside in the width direction of the shutter curtain 1, the tip 52A of the locking member 52 protrudes from the opening 9A, and the inner cylinder member 45B and pinion gear 46 are rotated to the left in FIG. 11 using the plate key. Then, the two locking members 52 retreat inward in the width direction of the shutter curtain 1 while being guided by the guide portion 55 inside the seat plate 2.

Note that the rack parts 50A, 51A of the rack members 50, 51 are arranged below the two locking members 52 and the connecting members 53, 54, so that these rack parts 50A, 51A mesh with each other. A locking device 45 including a pinion gear 46 is also arranged below the two locking members 52 and the connecting members 53, 54. In addition, in order to be able to arrange the rack members 50 and 51 inside the seat plate 2, the first guide part 40D and the second guide part 40E formed in the main body 40 of the seat plate 2 are It was excised at the center in the left and right direction.

In addition, before the plate key is inserted into the keyhole 45C, in other words, when the shutter curtain 1 is not locked by the locking device 45, the tips 52A of the two locking members 52 are As shown, since the length of the seat plate 2 including the end member 9 shown in FIG. It does not protrude outward in the direction. Further, as shown in FIG. 11, the height of the locking member 52 when the shutter curtain 1 reaches the fully closed position is provided on the back wall portion 5B of the pair of left and right guide rails 5. A hole 56 is formed at a position corresponding to the position, and this hole 56 is a through hole that penetrates in the forward direction of the locking member 52. It is a through hole that penetrates in the direction.

Therefore, when the shutter curtain 1 is fully closed, if the plate key inserted into the keyhole 45C of the locking device 45 is rotated clockwise to advance each of the locking members 52, as shown in FIG. As shown in the figure, the tip portions 52A of these locking members 52 protrude from the opening 9A of the end member 9 and are inserted into and penetrate the hole 56, so that the shutter curtain 1 is locked in the fully closed state. It then opens upwards and becomes unable to move.

Therefore, according to the present embodiment, in order to lock the fully closed shutter curtain 1 and prevent it from opening upward and moving, the hole 56, which is a through hole, is formed in the back wall portion 5B of the guide rail 5. There is no need to arrange a locked member for locking the tip 52A of the locking member 52 inside the guide rail 5, and this locked member can be omitted. It is possible to simplify the structure of the entire rail 5 and facilitate manufacturing work.

Moreover, since the locking member 52, which is movable forward and backward toward the guide rail 5, is housed inside the seat plate 2, the locking member 52 can be protected by the seat plate 2 from external forces and the like.

Note that in this embodiment, the locking device 45 and the locking member 52 are arranged on the seat plate 2 among the members constituting the shutter curtain 1, but the locking device 45 and the locking member 52 are arranged on the upper side of the seat plate Among the many slats 3 arranged vertically in a row, for example, the slats 3 may be arranged on the side closer to the seat plate 2, such as the slat 3 directly above the seat plate 2.

Moreover, in this embodiment, when the tip 52A of the locking member 52 is inserted and penetrated through the hole 56 of the back wall 5B of the guide rail 5, as shown by the two-dot chain line in FIG. The leading end of the shutter curtain 1 crosses the back wall 5B and reaches a position on the outside in the width direction of the shutter curtain 1, which is the forward side of the locking member 52. Two protrusions 5E and 5F are provided that protrude in the forward direction of the member 52 and are offset from the hole 56 to both sides in the thickness direction of the shutter curtain 1. In other words, since the amount of protrusion from the portion 5B is larger than the amount of protrusion of the tip portion 52A from the hole 56, the direction of action is based on the thickness of the shutter curtain 1. Even if an external force or the like acting in the opposite direction acts on the guide rail 5, the tip portion 52A can be protected from such external force by the two protrusions 5E and 5F, thereby increasing the safety of the tip portion 52A. can be secured.

Moreover, between the two protruding parts 5E and 5F, there is a space S from which the tip part 52A of the locking member 52 protrudes, and as described above, this space S is formed between the two protruding parts 5E and 5F. Since the bent portion 37B of the gap cover member 37 is in contact with the tip of the 5F, the forward side of the locking member 52 is a space closed by the bent portion 37B, so that the direction of action is the same as that of the locking member. The tip 52A can also be protected from loads in the forward and backward directions of the tip 52, making the protection of the tip 52A even more effective.

FIG. 13 shows another embodiment of a tip portion 52A of the locking member 52. As shown in FIG. In this embodiment, the tip portion 52A includes an inclined upper surface portion 60 that is inclined diagonally downward with respect to the forward direction of the locking member 52, and an inclined upper surface portion 60 that is sloped diagonally upward with respect to the forward direction of the locking member 52. An inclined lower surface portion 61 is provided, so that the tip portion 52A has a tapered shape. According to this embodiment, even if there is an error in the vertical position of the locking member 52 on the seat plate 2 or the vertical position of the hole 56 on the guide rail 5, such error can be corrected by 60 and the guiding action of the inclined lower surface portion 61, the tip portion 52A of the locking member 52 can be inserted into the hole 56 more reliably.

In the embodiment shown in FIG. 14, the distal end of the locking member 52 is formed into a small protrusion, and a cover member 57 is placed over the small protrusion. An inclined upper surface portion 60 is provided, and an inclined lower surface portion 61 is inclined obliquely upward with respect to the direction in which the locking member 52 moves forward. Therefore, in this embodiment as well, even if there is an error in the vertical position of the locking member 52 on the seat plate 2 or the vertical position of the hole 56 on the guide rail 5, such error can be corrected by tilting. The leading edge 52A of the locking member 52 can be inserted into the hole 56 more reliably by the guiding action of the upper surface part 60 and the inclined lower surface part 61. By making the cover member 57 from, for example, a hard synthetic resin, it is possible to eliminate contact between metals, thereby preventing the generation of abnormal noises when the shutter curtain 1 is locked by the locking device 45.

FIG. 15 shows another embodiment of holes provided in the guide rail 5. As shown in FIG. In this embodiment, an opening 58 penetrating in the forward direction of the locking member 52 is formed in the back wall 5B of the guide rail 5, and a hole member 59 is press-fitted into this opening 58 from the forward direction of the locking member 52. However, this hole member 59 is fixed to the opening 58. FIG. 16 is a partially enlarged view of FIG. 15 in which the hole member 59 is enlarged. A hole 62 is formed in the hole member 59 and is a through hole provided in the back wall 5B of the guide rail 5 and penetrates in the forward direction of the locking member 52. A rear portion of the locking member 52 in the forward direction of the locking member 52 than the rear wall portion 5B is locked with an upper inclined inner surface portion 63 formed to be inclined obliquely downward with respect to the forward direction of the locking member 52. The hole 65 has a tapered shape and has a lower inclined inner surface 64 that is formed to be inclined obliquely upward with respect to the advancing direction of the member 52. Further, a portion of the hole 62 on the front side in the forward direction of the locking member 52 is connected to the front end in the forward direction of the locking member 52 with respect to the upper inclined inner surface portion 63 and the lower inclined inner surface portion 64. The hole body portion 66 is horizontal or approximately horizontal.

In this embodiment as well, even if there is an error in the vertical position of the locking member 52 on the seat plate 2 or the vertical position of the hole 56 on the guide rail 5, such error can be corrected by adjusting the upper slope. The tip 52A of the locking member 52 can be inserted into the hole 62 more reliably by the guiding action of the inner surface 63 and the lower inclined inner surface 64. On the other hand, by making the hole member 59 made of, for example, a hard synthetic resin, it is possible to eliminate metal-to-metal contact and prevent the generation of abnormal noise when the shutter curtain 1 is locked with the locking device 45.

Further, according to this embodiment, since the hole member 59 includes the flange portion 59A that comes into contact with the back wall portion 5B of the guide rail 5 from the forward direction of the locking member 52, the hole member 59 However, even if it is fixed to the guide rail 5 by simply press-fitting the locking member 52 into the opening 58 of the back wall portion 5B from the forward direction, the fully closed shutter curtain 1 is locked. In order to do this, the locking member 52 is advanced toward the guide rail 5, and at the time of this forward movement, the tip portion 52A of the locking member 52 touches the upper inclined inner surface portion 63 and the lower inclined inner surface portion 64 of the hole member 59. Even if they abut, this abutting force can prevent the hole member 59 from being pushed out from the opening 58 of the back wall 5B.

In the embodiment shown in FIGS. 15 and 16, both upper and lower surfaces of the tip 52A of the locking member 52 are parallel to the forward direction of the locking member 52, as in the embodiment shown in FIGS. 11 and 12. Although it is a horizontal plane or a substantially horizontal plane, the embodiment shown in FIG. 13 may be combined with the embodiments shown in FIGS. 15 and 16, or the embodiment shown in FIG. The embodiments shown in FIGS. 15 and 16 may be combined.

The present invention is applicable to, for example, an in-vehicle shutter device installed on the loading platform of a vehicle such as a fire engine, an entrance shutter device installed at the entrance of a building such as a store or a warehouse, and furthermore, a window shutter device installed in a window. It can be used for shutter devices, etc.

1 Shutter curtain 5 Guide rail 5A Guide groove 5B Back wall part 25 Hand bar 26 Holding member 35 Stop member 32 Central shaft 33 Coil spring which is an elastic member 45 Locking device 52 Locking member 52A Tip part 58 Opening part 62 Through hole Hole 59 Hole member 63 Upper inclined inner surface 64 Lower inclined inner surface 66 Hole main body

Claims (12)

A locking member is disposed on the shutter curtain, which is guided by a guide rail and can be moved up and down to open and close, so as to move forward and backward toward the guide rail, and when the locking member moves forward, the shutter curtain is fully closed. In the shutter device with a locking device in which the shutter curtain is locked and cannot be opened and moved,
An opening is formed in the guide rail, and the hole member is press-fitted into the opening, thereby fixing the hole member to the guide rail. A shutter device with a locking device, characterized in that a hole is provided in which the fully closed shutter curtain is locked and becomes immovable when the front end of the shutter curtain is inserted. 2. The shutter device with a locking device according to claim 1, wherein the hole is a hole penetrating in the forward direction of the locking member. 3. The shutter device with a locking device according to claim 1, wherein the guide rail is made of metal, and the hole member is made of synthetic resin. 4. The shutter device with a locking device according to claim 1, wherein the hole member has both ends projecting from the opening. In the shutter device with a locking device according to any one of claims 1 to 4, the hole member is press-fitted into the opening from the forward direction of the locking member, and the hole member includes: A shutter device with a locking device, characterized in that the locking member includes a flange portion that comes into contact with the guide rail from a direction in which the locking member moves forward. 6. The shutter device with a locking device according to claim 1, wherein the hole includes an upper inclined inner surface that is inclined diagonally downward with respect to the advancing direction of the locking member; A shutter device with a locking device, characterized in that the shutter device includes at least one of a lower inclined inner surface portion that is inclined obliquely upward with respect to the forward direction of the shutter device. 7. The shutter device with a locking device according to claim 6, wherein the hole has both the upper inclined inner surface portion and the lower inclined inner surface portion. Shutter device. 8. The shutter device with a locking device according to claim 7, wherein the hole is formed in the front portion of the locking member in the forward direction, and the locking member is formed between the upper inclined inner surface portion and the lower inclined inner surface portion. 1. A shutter device with a locking device, comprising: a horizontal or substantially horizontal hole main body portion connected to a front end in a forward direction of the shutter device. In the shutter device with a locking device according to any one of claims 1 to 8, the seat plate of the shutter curtain is provided with a handle bar that is operated when opening and moving the shutter curtain upward. A shutter device with a locking device. In the shutter device with a locking device according to claim 9, the handle bar is disposed on the seat plate via a holding member that is vertically swingable about a central axis with respect to the seat plate. A stop member is coupled to the guide rail to maintain the fully closed state of the shutter curtain, which has reached the fully closed position, without opening upward and moving the shutter curtain when the handle bar comes into contact with the guide rail. A shutter device with a locking device. In the shutter device with a locking device according to claim 10, an elastic force of an elastic member for constantly swinging and urging the holding member around the central axis acts on the hand bar, and this elastic force acts on the hand bar. A shutter device with a locking device, characterized in that the handle bar comes into contact with the stop member by force. 12. The shutter device with a locking device according to claim 11, wherein the stop member is provided with a recess, and when the hand bar is fitted into the recess, the hand bar comes into contact with the stop member. A shutter device with a locking device.

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