JP3659892B2 - Shutter locking device and shutter equipped with the locking device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a locking device that locks a shutter and a shutter that includes the locking device.
[0002]
[Background]
Conventionally, a shutter has been incorporated with a locking device that locks the shutter so that the shutter is not opened from the outside when the shutter is closed.
For example, as shown in FIG. 7, in the shutter 100 configured by a shutter main body 110 in which a plurality of slats 111 are connected and a pair of guide rails 120 having a U-shaped cross section that guides both ends of the shutter main body 110, A latch bar 112 incorporated in a seat plate 111A which is a slat at the front end of the shutter body 110 on the closed position side (the lowermost end in the case where the shutter body 110 shown in FIG. 7 is closed), and the shutter closing position of the guide rail 120 The locking device 150 of the shutter 100 is constituted by the lock receiving member 130 incorporated in (lower end in FIG. 7).
[0003]
The latch bar 112 is constantly urged by an urging means such as a spring so as to protrude into the guide rail 120 from the left and right ends of the seat plate 111A.
On the other hand, as shown in FIGS. 8 and 9, the lock receiving member 130 includes a slope portion 131 and a locking portion 132, and is fixed inside the guide groove of the guide rail 120 with a rivet or the like.
Thus, when the shutter main body 110 is moved downward to be in the fully closed state, the latch bar 112 comes into contact with the inclined surface portion 131 along with the downward movement of the seat plate 111A and gradually moves toward the inner side of the seat plate 111A. It is pushed into. And if it passes over the slope part 131, the latch bar 112 will protrude in the space below the latching | locking part 132 by a biasing means. Thus, even if the shutter main body 110 is to be raised upward, the latch bar 112 is locked to the locking portion 132, so that the shutter main body 110 cannot be opened and locking is performed.
[0004]
A lever 113 for pulling the latch bar 112 into the seat plate 111A is provided on the indoor side of the seat plate 111A. By operating the lever 113 and pulling the latch bar 112, the lock by the locking device 150 is locked. It is canceled and the shutter body 110 can be opened.
[0005]
[Problems to be solved by the invention]
By the way, in such a locking device 150, it is necessary to prevent the unlocking action from the outdoor side for crime prevention. In the conventional locking device 150, when a guide or the like is inserted through a gap between the shutter body 110 and the guide rail 120 and the guide rail 120 is pry open, a tool whose tip is bent from the gap is moved from the lower side of the latch bar 112 to the end face side. The latch bar 112 can be pushed into the seat plate 111A and unlocked.
[0006]
For this reason, conventionally, the guide rail 120 is made thick so as to increase the strength, so that it cannot be opened with a screwdriver or the like.
[0007]
However, since the guide rail 120 is manufactured by extrusion molding or the like, even if only the portion into which the lock receiving member 130 at the lower end of the guide rail 120 is incorporated is formed thick, the guide rail 120 extends over the entire length of the guide rail 120. Must be thick. For this reason, there are problems that a large amount of material is required, the cost is increased, and the weight of the guide rail 120 is also increased.
[0008]
An object of the present invention is to provide a shutter locking device that does not require an increase in the thickness of a guide rail and that can prevent an unlocking action from the outdoor side, and a shutter equipped with the locking device.
[0013]
[Means for Solving the Problems]
  First of the present invention1The shutter locking device according to the present invention is a locking device used for a shutter including a shutter slat and a guide rail for guiding the shutter slat, and includes a locking member attached to the guide rail, and a shutter. And a latch bar which is incorporated in the slat and can be projected and retracted toward the lock receiving member of the guide rail and is locked to the lock receiving member.,Provided on the indoor side of the edge of the shutter slatOf the guide railBetween the interior surface and the interior surface of the shutter slat endIn the portion where the lock receiving member is disposed (shutter closed position)A spacer member is provided;Other parts are provided with sealing material,The locking member includes an inclined surface portion that guides the latch bar to a locking position.
[0014]
Here, the spacer member is provided at the shutter closed position. More specifically, the spacer member is provided at a position where the position in the longitudinal direction of the guide rail is the same as or near the lock receiving member. Just do it.
Further, the spacer member may be any member that can prevent the shutter slat from moving to the indoor side of the guide rail from the predetermined position in the indoor / outdoor direction even when the shutter slat is pushed from the outdoor side, It may be composed of a general member made of plastic or the like, or various spring materials such as a leaf spring.
[0015]
According to the present invention, since the spacer member is disposed between the indoor surface portion of the guide rail and the indoor surface of the shutter slat end portion, the gap between the opening portion of the guide rail and the shutter slat is set to the thickness of the spacer member. Can be adjusted to a predetermined dimension. As a result, the gap between the outer surface of the guide rail and the shutter slat can be made very small, making it difficult to insert a tool such as a screwdriver into the gap and preventing the unlocking action caused by opening the guide rail. be able to. For this reason, it is not always necessary to make the guide rail itself thick, and the cost can be reduced.
Furthermore, if the spacer member is provided to make the gap between the shutter slat and the guide rail very small, the shutter slat and the guide rail collide with each other and it is difficult to move smoothly. The shutter opening / closing operation may be hindered because it is arranged only at the shutter closing position such as the lower end of the guide rail, and other parts such as the upper end side of the guide rail may be provided with a normal sealing material such as mohair. Absent.
[0016]
  In addition, the present inventionIt is the second inventionThe shutter locking device is a locking device used for a shutter including a shutter slat and a guide rail for guiding the shutter slat, and is incorporated in the shutter slat and a locking member attached in the guide rail. And a latch bar that can be projected and retracted toward the lock receiving member of the guide rail and locked to the lock receiving member, and the guide rail is at least on the outdoor side of the shutter slat edge. An outdoor surface portion is provided, and the lock receiving member is fixed to the lock receiving member such that the outdoor surface portion is immovable in an indoor / outdoor direction, and the lock receiving member is provided to face an end surface of the shutter slat. And a latch receiving plate in which a receiving hole into which the latch bar can be inserted is formed, and the latch receiving plate of the lock receiving member is a receiving member. A pair extending from the upper end and the lower end in the protruding direction of the latch bar of the guide portion,Provided on the indoor side of the edge of the shutter slatOf the guide railBetween the interior surface and the interior surface of the shutter slat endIn the portion where the lock receiving member is disposed,Spacer member is provided, Other parts are provided with sealing materialIt may be characterized by that.
Here, as a method for fixing the guide rail and the lock receiving member, various fixing methods such as welding, rivets, bolts / nuts, and engagement can be used.
  According to the present invention, the guide rail and the lock receiving member can be integrated to improve the strength, the gap between the receiving hole and the latch bar can be made extremely small, and the outdoor surface portion of the guide rail and the shutter slat The gap between the two can be made very small, and furthermore, since the latch bar is covered with the guide member, it becomes difficult to push the latch bar into the seat plate, so that the crime prevention performance can be improved.
That is, the locking member is fixed to the outdoor surface portion of the guide rail, and the outdoor surface portion and the locking member are immovable or integrated with each other in the indoor / outdoor direction, so even if you try to pry open the outdoor surface portion of the guide rail, Since the guide rail and the lock receiving member are integrated to improve the strength and are difficult to be deformed, it is possible to prevent the opening. For this reason, since it is not necessary to make guide rail itself thick, cost can be reduced and the unlocking action from the outdoor side can also be prevented.
In addition, the portion where the latch bar is locked in the lock receiving member is not performed by the locking portion whose lower part is opened as in the conventional lock receiving member, but is locked by the receiving hole formed in the latch receiving plate. Therefore, the gap between the receiving hole and the latch bar can be made very small, and it is very difficult to move the latch bar by inserting a tool through this gap, thus preventing the unlocking action from the outdoor side. be able to. If such a configuration is adopted, even if the guide rail is pry open, no further unlocking action can be performed, so it is not always necessary to make the guide rail itself thick, reducing costs. be able to.
[0017]
  The second1 inventionThe lock receiving member is provided with a latch receiving plate provided facing the end surface of the shutter slat and having a receiving hole into which the latch bar can be inserted.Togapreferable.
  With this configuration,Since the gap between the receiving hole and the latch bar can be made very small, and it is very difficult to move the latch bar by inserting a tool through this gap, the unlocking action from the outdoor side can be prevented. If such a configuration is adopted, even if the guide rail is pry open, no further unlocking action can be performed, so it is not always necessary to make the guide rail itself thick, reducing costs. be able to.
[0018]
  The second1 inventionThe latch receiving plate of the lock receiving member preferably includes a pair of guide portions extending from the upper end and the lower end of the receiving hole in the protruding direction of the latch bar.
  If such a guide member is provided, the upper and lower sides of the lock receiving member are opened, and even if a tool such as a screwdriver is inserted from these parts, the latch bar is covered with the guide member. It becomes difficult to push into the seat plate, and the crime prevention performance can be further improved.
[0019]
  Further, the lock receiving member includes a lock receiving base member having a U-shaped cross-section, and a lock receiving body formed in a U-shaped cross-section and disposed in the lock receiving base member and fixed to the lock receiving base member. It is preferable to be configured.
If the lock receiving member is composed of two members, the lock receiving base member and the lock receiving main body, the strength of the lock receiving member can be further improved, and the guide rail can be prevented from being opened more reliably.
For fixing the lock receiving member and the lock receiving base member, various fixing methods such as welding, riveting, and engagement can be adopted.
[0021]
The shutter of the present invention comprises a shutter slat, a guide rail that guides the shutter slat, and any one of the locking devices described above.
[0022]
According to the present invention as described above, it is not necessary to increase the thickness of the guide rail, and a shutter with high crime prevention performance that can prevent the unlocking action from the outdoor side can be obtained.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In each drawing, in order to make the drawing easy to see, main components such as a window frame and a guide rail are partially omitted from hatching showing a cross section.
[0024]
As shown in FIGS. 1 and 2, the shutter 1 of the present embodiment is integrally incorporated on a sliding sash 5 incorporated in an outer wall opening of a building.
In other words, the shutter 1 includes a shutter box 10 disposed above the upper frame 51 of the sliding sash 5, a winding shaft 20 rotatably supported in the shutter box 10, and a plurality of shutter slats 31. And a pair of guide rails 40 for guiding the shutter body 30 (slats 31).
The shutter body 30 has an upper end slat (top slat) 31 screwed to the take-up shaft 20 and manually moved up and down to be taken up by the take-up shaft 20 to be fully opened, or rewound to be fully closed. It is configured to be in a state.
[0025]
The lowermost slat 31 that is the closed position of the shutter main body 30 is a seat plate 31 </ b> A, and is configured to contact the lower frame 52 of the sliding sash 5 when the shutter 1 is fully closed.
Further, the abutting block 34 is attached to the seat plate 31A, and in the fully opened state, the shutter main body 30 is stopped by the block 34 coming into contact with the stopper piece 51A of the upper frame 51.
[0026]
Each slat 31 of the shutter 1, that is, the shutter main body 30 is guided to be movable in the vertical direction by a pair of guide rails 40 fixed to the front surface of each vertical frame 53 of the sliding sash 5 with screws or the like.
[0027]
The guide rail 40 is formed in a substantially U-shaped cross section with an inner side opened. That is, as shown also in FIGS. 3 and 4, the outdoor surface portion 41 disposed on the outdoor side of the shutter body 30, the indoor surface portion 42 disposed on the indoor side, and the outdoor surface portion 41 and the indoor surface portion 42 are connected. The connecting surface portion 43 is provided and is formed in a substantially U-shaped cross section.
The interior surface portion 42 is formed with flanges 44 </ b> A and 44 </ b> B that are screwed or locked to the vertical frames 53.
[0028]
As shown in FIGS. 1 and 4, the upper end side of the outdoor surface portion 41 protrudes upward from the indoor surface portion 42 and is bent outward. Thereby, as shown in FIG. 1, the shutter slat 31 wound up on the winding shaft 20 is configured to be smoothly rewound without coming into contact with the guide rail 40.
[0029]
Further, two protrusions 45A and 45B are formed on the surfaces of the outdoor surface portions 41 and the indoor surface portion 42 facing the shutter slats 31 (surfaces on the guide groove side of the guide rail 40), respectively. The ridge 45A protrudes from the opening side end of each of the outdoor surface portions 41 and the indoor surface portion 42 and has a substantially L-shaped cross section.
On the other hand, the ridge 45B protrudes from the outdoor surface portion 41 and the indoor surface portion 42 at a position closer to the connecting surface portion 43 than the ridge portion 45A, and has a substantially T-shaped cross section.
[0030]
Therefore, a groove 46 that is continuous in the vertical direction of the guide rail 40 is formed between the protrusions 45A and 45B. In addition, grooves 47 that are continuous in the vertical direction of the guide rail 40 are also formed between the protrusion 45B, the outdoor surface portion 41, and the indoor surface portion 42, respectively.
Then, as shown in FIG. 4, a sealing material 48 made of mohair or the like is fitted in each groove 46. A slide bar 49 made of synthetic resin or the like is fitted into the groove 46 of the upper end bent portion of the outdoor surface portion 41.
[0031]
On the other hand, a spacer member 50 made of synthetic resin is inserted into the lower end portion of the groove 46 of the indoor surface portion 42 which is the closed position of the shutter main body 30. The sealing material 48, the slide bar 49, and the spacer member 50 do not fall out of the groove 46 by caulking the upper and lower ends of the protrusions 45A and 45B after the members 48 to 50 are inserted into the groove 46. To be fixed.
Note that the upper end of the spacer member 50 is an inclined surface that is inclined from the proximal end side of the groove 46 toward the opening side, and the inclined surface is in contact with the upper surface of the spacer member 50 when the shutter slat 31 is lowered. It is configured to be able to move smoothly along.
[0032]
A lock receiving member 60 is attached in the guide groove at the lower end (shutter closing position) of the guide rail 40. Specifically, as shown in FIG. 4, the lock receiving member 60 is fixed to the guide rail 40 using a blind rivet 61 that can be fastened only from the indoor surface portion 42 side of the guide rail 40.
[0033]
As shown in FIG. 5, the lock receiving member 60 includes a lock receiving base member 62 and a lock receiving main body 65.
The lock receiving base member 62 is formed in a substantially U-shaped cross section, and is disposed along the guide groove inner peripheral surface of the guide rail 40.
The lock receiving main body 65 has a substantially U-shaped cross section and is fixed to the inner surface of the lock receiving base member 62 by spot welding. The lock receiving main body 65 is continuous with the upper end of the base end 66 and is inclined obliquely upward. The inclined surface portion 67 is provided, and is configured by press working or the like.
[0034]
The latch receiving plate 66A facing the opening surface of the guide rail 40 of the base end portion 66 is partially cut at both end portions (folded portions of the base end portion 66) of the latch receiving plate 66A, and the upper and lower middles of the cut portions. The receiving hole 66B is formed by cutting the portion and bending the upper and lower pieces to the side opposite to the opening. Further, a guide portion 66C is formed by the bent pieces.
[0035]
The inclined surface portion 67 is formed by bending a plate continuous from the upper end of the latch receiving plate 66A obliquely upward. Further, both side surfaces thereof are bent at right angles to the inclined surface portion 67 to form flanges 67A, which reinforce the inclined surface portion 67.
[0036]
The lock receiving main body 65 is less than half the size of the lock receiving base member 62, that is, the dimension in the direction from the opening of the guide rail 40 toward the indoor surface portion 42. The lock receiving base member 62 and the lock receiving main body 65 are welded so that the end positions on the opening side of the guide rail 40 are substantially matched. For this reason, the latch receiving plate 66A of the lock receiving body 65 is formed at a position close to the opening of the guide rail 40, and even if a force is applied in a direction in which the opening side end of the lock receiving base member 62 is expanded, the force is applied. The lock body 65 can be effectively supported and can be improved in strength.
[0037]
Further, the opening-side end portion of the lock receiving base member 62 protrudes from the lock receiving main body 65, and the upper and lower ends of the protruding portion 62A are formed obliquely.
And this protrusion part 62A is engaged and fixed to the groove | channel 47 of the guide rail 40, as shown also in FIG.
[0038]
On the other hand, latch bars 32 that are always urged and protruded toward the guide rail 40 by a biasing means such as a spring are incorporated in both ends of the seat plate 31A of the shutter body 30.
The latch bar 32 is provided so as to be slidable in the seat plate 31A, and operates a horizontally long lock release lever 33 provided on the indoor side of the seat plate 31A, so as to resist the urging force of the urging means. It is comprised so that it may be drawn in to the board 31A side.
[0039]
In this embodiment, when the seat plate 31A is pulled downward from the fully opened state where the shutter slat 31 is wound up to the fully closed state, as shown in FIG. 6, the latch bar 32 of the seat plate 31A is used. Moves downward in the guide rail 40 and first comes into contact with the inclined surface portion 67 of the lock receiving member 60.
Further, when the seat plate 31A is pulled down, the latch bar 32 is pushed into the seat plate 31A by the inclined surface portion 67 against the biasing force of the biasing means. Further, when the seat plate 31A is pulled down, the latch bar 32 moves over the inclined surface portion 67 to the latch receiving plate 66A, and when it reaches the receiving hole 66B, it automatically protrudes into the receiving hole 66B by the urging means.
[0040]
At this time, the seat plate 31 </ b> A also reaches the lowermost position (closed position) that contacts the lower frame 52, and the shutter body 30 is fully closed.
Further, since the latch bar 32 protrudes into the receiving hole 66B, even if the shutter main body 30 is lifted upward from the outdoor side, the latch bar 32 hits the guide portion 66C of the receiving hole 66B and is locked, and the shutter main body 30 is fully closed. Locked in state. Therefore, the latch bar 32 and the lock receiving member 60 constitute the locking device of the present invention.
[0041]
On the other hand, when the shutter body 30 is opened from the fully closed state, when the hand is lifted by placing the hand on the lock release lever 33, the latch bar 32 moves toward the seat plate 31A against the urging force of the urging means via the link mechanism or the like. Pulled in and disengaged from the receiving hole 66B.
Then, when the lock release lever 33 is lifted as it is, the shutter main body 30 is raised and wound around the winding shaft 20.
As shown in FIG. 1, the abutment block 34 attached to the seat plate 31 </ b> A contacts the stopper piece 51 </ b> A of the upper frame 51, so that the shutter main body 30 is stopped and the shutter 1 is fully opened.
[0042]
According to this embodiment, there are the following effects.
(1) Since the lock receiving base member 62 of the lock receiving member 60 is engaged and fixed to the groove 47 of the guide rail 40 and the guide rail 40 and the lock receiving member 60 are integrated, the lock of the guide rail 40 is locked. The strength of the portion where the member 60 is disposed can be improved. For this reason, even if a driver or the like is inserted between the guide rail 40 and the shutter slat 31 from the outdoor side to open the guide rail 40, the guide rail 40 is reinforced by the lock member 60, so that deformation of the guide rail 40 can be prevented. . Therefore, even if the guide rail 40 itself is not formed thick, the strength against prying can be increased and the crime prevention property can be improved.
Moreover, since it is not necessary to make the guide rail 40 thick, material costs can be reduced, the weight can be reduced, and handling during construction can be facilitated.
[0043]
(2) Furthermore, since the lock receiving member 60 is composed of two members, the lock receiving base member 62 and the lock receiving main body 65, the strength of the lock receiving member 60 itself can be improved, and the deformation of the lock receiving member 60 can be reduced. Can be prevented. For this reason, it is possible to further increase the strength against the opening of the guide rail 40 and improve the crime prevention. In particular, since the lock receiving main body 65 is provided at a position close to the opening end portion of the guide rail 40, it is possible to effectively increase the strength against the mouth opening action of opening the opening end portion of the guide rail 40.
[0044]
(3) Since the spacer member 50 is attached to the indoor surface portion 42 corresponding to the portion (shutter closing position) where the locking member 60 is arranged at the lower end portion of the guide rail 40, mohair or the like is used instead of the spacer member 50. Compared to the case where the sealing material 48 is attached, the gap between the shutter slat 31 and the guide rail 40 can be reduced, and the crime prevention performance can be improved.
That is, when the seat plate 31A is pushed in from the outdoor side to the indoor side and a sealing material such as mohair is attached to the indoor surface portion 42, the sealing material is crushed so that the seat plate 31A contacts the indoor surface portion 42. It is moved to the position where it touches. Therefore, a gap between the outdoor surface portion 41 and the shutter slat 31 (seat plate 31A) having a size obtained by removing the thickness dimension (expected size) of the seat plate 31A from the opening size between the outdoor surface portion 41 and the indoor surface portion 42. Will occur.
On the other hand, if the spacer member 50 is provided as in the above-described embodiment, even if the seat plate 31A is pushed in, the seat plate 31A moves only to a position where it abuts on the spacer member 50. For this reason, between the outdoor surface part 41 and the shutter slat 31, the projection dimension from the indoor surface part 42 of the spacer member 50 and the thickness dimension of the seat plate 31A (expected) are determined from the opening dimension between the outdoor surface part 41 and the indoor surface part 42. Only small gaps (excluding dimensions) are generated.
As a result, it becomes difficult to insert a tool such as a screwdriver into the gap between the shutter body 30 and the guide rail 40, and even if it can be inserted, only a thin tool with a small thickness can be inserted. It becomes difficult to pry the guide rail 40 open, and crime prevention can be improved.
[0045]
(4) Further, since the spacer member 50 is provided only at the lower end portion of the guide rail 40, and other portions such as the upper end side of the guide rail 40 are provided with a sealant 48 such as a normal mohair, the spacer member The shutter body 30 can be opened and closed smoothly without hindering the opening and closing operation of the shutter slat 31 at 50.
[0046]
(5) Since the latch bar 32 is configured to be inserted into the receiving hole 66B of the lock receiving member 60, compared to a case where the latch bar is locked by a locking portion whose lower part is opened like a conventional lock receiving member. It is very difficult to move the latch bar 32 by inserting a tool through the gap between the receiving hole 66B and the latch bar 32, and the unlocking action from the outdoor side can be effectively prevented.
Further, since the lower frame 52 of the sliding sash 5 is inserted into the lower end of the guide rail 40, it is very difficult to insert the tool into the guide rail 40 from the lower end, but it is assumed that the tool is inserted. However, since the guide portion 66C is provided to cover the latch bar 32, the unlocking action can be effectively prevented also in this respect.
[0047]
(6) Since the lock receiving member 60 is composed of the two members of the lock receiving base member 62 and the lock receiving main body 65, the lock receiving member 60 having a relatively complicated shape including the guide portion 66C, the inclined surface portion 67, etc. Also, it can be easily manufactured by pressing and welding operations. For this reason, the manufacturing cost of the lock receiving member 60 can be reduced, and even if compared with the conventional lock receiving member, a slight increase in cost can be suppressed.
[0048]
The present invention is not limited to the above-described embodiment.
For example, the lock receiving member 60 is not limited to the configuration of the embodiment. That is, the lock receiving member 60 of the above embodiment is fixed by being engaged with the groove 47 of the guide rail 40 (A) and integrated with the guide rail 40, and (B) the receiving member into which the latch bar 32 is inserted. A latch receiving plate 66A having a hole 66B is provided, and (C) a spacer member 50 disposed between the shutter slat 31 (seat plate 31A) and the indoor surface portion 42 is provided. ) To (C) may not be provided, and may be provided with at least one of these constituent requirements (A) to (C).
[0049]
That is, when the lock receiving member has only a structure (configuration A) that is fixed to the guide rail 40 by engagement or the like, the guide rail 40 can be reinforced by the lock receiving member. Without making it, the opening of the guide rail 40 can be prevented, thereby improving the crime prevention.
[0050]
Further, when the lock receiving member has a receiving hole 66B and only the structure (configuration B) in which the latch bar 32 is inserted into the receiving hole 66B, even if the guide rail 40 is pry open, the receiving hole 66B Since the tool cannot be inserted and the latch bar 32 cannot be pushed into the seat plate 31A, crime prevention can be improved even when the guide rail 40 is not thickened.
[0051]
Furthermore, a tool such as a screwdriver is provided between the shutter slat 31 and the guide rail 40 as long as the lock receiving member has only a structure (configuration C) in which the spacer member 50 is disposed between the shutter slat 31 and the indoor surface portion 42. Since it is difficult to insert the guide rail 40 and the guide rail 40 can be prevented from being opened, the crime prevention performance can be improved even when the guide rail 40 is not thickened.
[0052]
However, if all the configurations A to C are provided as in the lock receiving member 60 of the above-described embodiment, a synergistic effect by each configuration can be obtained, and the shutter 1 having a very high security performance can be configured.
In addition, as this invention, you may use the locking member provided with the structures A and B, the locking member provided with the structures B and C, the locking member provided with the structures A and C, and these locking members were used. Even in this case, a shutter with high crime prevention performance can be provided.
[0053]
Furthermore, the specific structure of the lock receiving member is not limited to the above embodiment. For example, the lock receiving member is not limited to the two members of the lock receiving base member 62 and the lock receiving main body 65 as in the above-described embodiment. May be good. In particular, the lock receiving member preferably has a receiving hole 66 </ b> B and is configured to be engaged with the guide rail 40.
However, if the lock receiving member 60 is composed of two members, the lock receiving base member 62 and the lock receiving main body 65, it is advantageous in that the strength of the lock receiving member 60 itself can be improved.
[0054]
Further, when the receiving hole 66B is formed in the lock receiving member 60, the guide portion 66C is not necessarily provided. However, if the guide portion 66C is provided, the unlocking action can be more effectively prevented. There are advantages.
Furthermore, the guide portion 66C is not limited to those formed on both the upper and lower sides of the receiving hole 66B, and may be only one. In particular, since the upper part of the receiving hole 66B is covered with the inclined surface part 67, the guide part 66C may be formed only in the lower part.
[0055]
Moreover, in the said embodiment, although the locking member 60 was engaged with each groove | channel 47 of the outdoor surface part 41 and the indoor surface part 42, you may engage and fix only the groove | channel 47 of the outdoor surface part 41. FIG. Even in this case, the outdoor surface portion 41 of the guide rail 40 to which a load is applied at the time of prying open can be reinforced by the lock receiving member 60 to improve the strength, so that pry opening can be prevented. However, if the lock receiving member 60 is engaged and fixed in both the grooves 47 of the outdoor surface portion 41 and the indoor surface portion 42, the load applied to the outdoor surface portion 41 can be supported also on the indoor surface portion 42 side, so that the strength of the guide rail 40 is increased. This is advantageous in that it can be further improved.
Furthermore, the method of fixing the lock receiving member 60 and the outdoor surface portion 41 of the guide rail 40 is not limited to the method of engaging each other as in the above-described embodiment, and may be fixed by other methods such as rivets and welding. . However, if it is fixed by engagement using the groove 47 or the like, there is an advantage that the fixing operation can be easily performed.
[0056]
Further, in the above embodiment, the spacer member 50 is used separately from the lock receiving base member 62 and the lock receiving main body 65. However, an integrated type formed by extending the lock receiving base member 62 and the lock receiving main body 65 is used. The spacer member may be used. However, if the spacer member 50 can be formed separately, there is an advantage that it can be easily manufactured with a synthetic resin different from the lock receiving base member 62 and the lock receiving main body 65.
Further, the spacer member 50 is not limited to a member made of a synthetic resin as in the above embodiment, but may be a member made of a leaf spring or the like. In short, when the shutter main body 30 is fully closed, the seat plate 31A, that is, the slat 31 is placed between the seat plate 31A (the slat 31) and the indoor surface portion 42 of the guide rail 40 from the predetermined position in the indoor / outdoor direction. Any material that can be held so as not to move inward is acceptable.
[0057]
Further, the shutter 1 is not limited to the one in which the winding shaft 20 is disposed above the sash 5, but may be one disposed below the sash 5. In this case, the lock receiving member 60 of the above embodiment is turned upside down on the upper end side of the guide rail 40 which is the shutter closing position, that is, the inclined surface portion 67 is below the latch receiving plate 66A. do it.
Further, the present invention may be applied to a shutter that opens and closes by moving the shutter slat 31 in the left-right direction by arranging the guide rail 40 vertically.
[0058]
Further, the shutter 1 is not limited to one that is manually opened and closed, and may be an electric shutter that is opened and closed electrically. In this case, the latch bar 32 may be configured to appear and disappear by a switch operation as necessary. Moreover, since it is not necessary to push the latch bar 32 in by the inclined surface part 67, the locking member 60 which eliminated the inclined surface part 67 can also be utilized.
[0059]
【The invention's effect】
According to the shutter locking device and the shutter equipped with the locking device of the present invention, it is not necessary to increase the thickness of the guide rail, and the unlocking action from the outdoor side can be prevented.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a shutter according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a shutter of the present embodiment.
FIG. 3 is a cross-sectional view showing the main part of the locking device of the present embodiment.
FIG. 4 is an exploded perspective view showing a guide rail and a lock receiving member of the present embodiment.
FIG. 5 is a perspective view showing a lock receiving member of the present embodiment.
FIG. 6 is a schematic view showing the operation of the locking device of the present embodiment.
FIG. 7 is a front view showing a conventional shutter of the present invention.
FIG. 8 is a cross-sectional view showing a main part of a conventional locking device.
FIG. 9 is a perspective view showing a conventional lock receiving member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Shutter, 5 ... Sash, 10 ... Shutter box, 20 ... Winding shaft, 30 ... Shutter main body, 31 ... Slat, 31A ... Seat plate, 32 ... Latch bar, 33 ... Lock release lever, 34 ... Butting block, 40 ... guide rail, 41 ... outdoor surface portion, 42 ... indoor surface portion, 43 ... connecting surface portion, 44A, 44B ... flange, 45A, 45B ... ridge portion, 46,47 ... groove, 48 ... seal material, 49 ... slide bar, 50 ... Spacer member, 51 ... Upper frame, 51A ... Stopper piece, 52 ... Lower frame, 53 ... Vertical frame, 60 ... Lock receiving member, 61 ... Blind rivet, 62 ... Lock receiving base member, 62A ... Projection, 65 ... Lock Receiving body, 66 ... base end, 66A ... latch receiving plate, 66B ... receiving hole, 66C ... guide portion, 67 ... inclined surface portion, 67A ... flange, 100 ... shutter, 101A ... seat plate 110 ... shutter body 111 ... slats, 111A ... seat plate, 112 ... latch bar, 113 ... lever, 120 ... guide rail, 130 ... lock receiving member, 131 ... inclined surface, 132 ... engaging portion 150 ... locking device.

Claims (6)

A locking device used for a shutter comprising a shutter slat and a guide rail for guiding the shutter slat,
A lock receiving member mounted in the guide rail, and a latch bar incorporated in the shutter slat and capable of protruding and retracting toward the lock receiving member of the guide rail and locked to the lock receiving member. With
An indoor surface of the guide rail provided on the interior side of the sheet Yattasuratto edge, Oite between the interior surface of the shutter slat ends, the portion where the lock receiving member is disposed is provided a spacer member, the other The part is provided with a sealing material,
The shutter receiving device is a shutter locking device having an inclined surface portion for guiding the latch bar to a locking position. A locking device used for a shutter comprising a shutter slat and a guide rail for guiding the shutter slat,
A lock receiving member mounted in the guide rail, and a latch bar incorporated in the shutter slat and capable of protruding and retracting toward the lock receiving member of the guide rail and locked to the lock receiving member. With
The guide rail includes an outdoor surface portion provided at least on the outdoor side of the shutter slat edge, and the lock receiving member is fixed to the lock member so that the outdoor surface portion cannot move in the indoor / outdoor direction,
The lock receiving member is provided with a latch receiving plate provided facing the end surface of the shutter slat and having a receiving hole into which the latch bar can be inserted,
The latch receiving plate of the lock receiving member includes a pair of guide portions extended in the protruding direction of the latch bar from the upper end and the lower end of the receiving hole,
An indoor surface of the guide rail provided on the interior side of the sheet Yattasuratto edge, Oite between the interior surface of the shutter slat ends, the portion where the lock receiving member is disposed is provided a spacer member, the other Shutter locking device with sealing material on the part . 2. The shutter locking device according to claim 1 , wherein the lock receiving member includes a latch receiving plate that is provided to face an end surface of the shutter slat and has a receiving hole into which the latch bar can be inserted.   4. The shutter locking device according to claim 3, wherein the latch receiving plate of the lock receiving member includes a pair of guide portions extending in a protruding direction of the latch bar from an upper end and a lower end of the receiving hole.   The lock receiving member includes a lock receiving base member having a U-shaped cross section, and a lock receiving body formed in a U-shaped cross section and disposed in the lock receiving base member and fixed to the lock receiving base member. The shutter locking device according to claim 1, which is configured.   A shutter comprising a shutter slat, a guide rail that guides the shutter slat, and the locking device according to claim 1.

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