JP3121339U - Sash locking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking device for a window sash having a simple and inexpensive configuration and improved crime prevention.
An advancing / retracting member 12 that moves inward and outward so as to be incorporated in an inner fitting frame portion 5 of an inner sash 4 is attached, an engagement receiving portion 9 is attached to an outer fitting frame portion 8 of an outer sash 7, and an advancing / retreating member 12 is provided. The distal end of the engagement member 9 is screwed into the locking state, and the distal end portion of the advance / retreat member 12 and the engagement receiving portion 9 are released from the unlocked state, and the inner frame portion The advancing / retreating member 12 is accommodated in the inner frame portion 5 at the time of unlocking by the urging force of the elastic member 18 accommodated in 5, and a connected portion 15 is provided at the rear end portion of the advancing / retreating member 12. The connecting part 22 of the body key 3 is connected to the connected part 15 of the advance / retreat member 12 and the key 3 is rotated to advance and release the screw engagement.
[Selection] Figure 1

Description

  The present invention relates to a sash locking device, and more particularly to a sash locking device with improved security.

Conventionally, a window sash is desired not only to have functions such as design and soundproofing but also to have high crime prevention, and many window sashes that consider crime prevention have been proposed.
For example, Patent Document 1 discloses a technique in which a crescent lock is built in an inner frame portion of a window sash in order to make the position of the crescent lock difficult to understand from the outside.

In addition, a ventilation auxiliary lock has been proposed in which a window sash is opened to such an extent that a person cannot invade and cannot be opened any more. In many cases, the auxiliary lock for ventilation is provided with a stopper that moves up and down in a seesaw manner with respect to the window sash plane so that the window sash cannot be opened by the stopper.
Japanese Utility Model Publication No. 02-62071 “Sash Locking Device”

The above prior art has the following problems.
In the configuration disclosed in Patent Document 1, the position of the crescent lock is difficult to see from the outside of the window sash, but the crescent lock itself can be easily opened manually. Therefore, a thief or the like can enter the room relatively easily if only the position of the crescent lock is known.

On the other hand, in the above-described ventilation auxiliary lock, the stopper protrudes with respect to the window sash plane, so that a thief or the like can easily find the mounting position of the stopper, and there is a risk that the stopper will break into the room by a method such as breaking the stopper. .
On the other hand, it is also conceivable to use a locking device that can be unlocked and locked by an individual key such as a car key or a door key for the window sash. However, adopting a complicated locking device for the window sash is costly. Furthermore, in the case of a configuration in which the locking portion of the lock protrudes in the horizontal direction due to the rotation of the key, a space is required for the locking portion to move in the horizontal direction, and mounting is necessary unless the width of the alignment frame portion of the window sash is increased. There are many cases where this is not possible.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a sash locking device that can solve the above problems.
An example of a specific purpose is as follows.
(A) To provide a sash locking device with a simple and inexpensive configuration and improved crime prevention.
(B) To provide a sash locking device that can be attached even when the width of the alignment frame portion is narrow to some extent.
The problems of the invention other than those described above, the means for solving them, and the effects thereof will be described in detail in the description in the specification to be described later.

Although the present invention can be expressed in many ways, for example, a typical one is configured as follows. For reference, the reference numerals are attached corresponding to the constituent elements shown in the embodiments described later. In addition, the structure of this invention is not limited to the specific structure of embodiment which attached | subjected the code | symbol.
The sash locking device according to the first device is provided with an advancing / retracting member 12 that moves inward and outward so as to be incorporated in the inner fitting frame portion 5 of the inner sash 4, and an engagement receiving portion on the outer fitting frame portion 8 of the outer sash 7. 9 is attached, the distal end portion of the advance / retreat member 12 is screw-engaged with the engagement receiving portion 9 to be locked, and the screw engagement between the distal end portion of the advance / retreat member 12 and the engagement receiving portion 9 is released. A sash locking device that is unlocked by allowing
The advancing / retracting member 12 is accommodated in the inner aligning frame portion 5 when unlocked by the biasing force of the elastic member 18 accommodated in the inner aligning frame portion 5, The connecting portion 15 is provided, the connecting portion 22 of the key 3 separate from the advance / retreat member 12 is connected to the connected portion 15 of the advance / retreat member 12 and the key 3 is rotated to rotate the screw engagement. It is characterized in that it is configured to proceed and cancel the match.

A second device is characterized in that, in the first device, the distal end portion of the advance / retreat member 12 is a male screw portion 11 and a female screw portion 10 is provided in the engagement receiving portion 9.
A third device is the device described in any one of the first device to the second device, wherein the connecting portion 22 is formed in a columnar shape in which a protrusion 23 or a recess 35 is formed, and the connected portion 15 Is formed in the circular engagement recess 17 in which the recess 35 or the protrusion 23 is formed.

  A fourth device is the device according to any one of the first device to the third device, wherein the elastic member 18 is constituted by a spring 13, and the spring 13 and the advance / retreat member 12 are accommodated in the accommodating member 6, The housing member 6 is attached to the inner frame portion 5.

  A fifth device is the device according to any one of the first device to the fourth device, wherein the connected portion 15 is an engaging recess 17, and a bottom surface 37 of the engaging recess 17 other than the connecting portion 22 is used. A protrusion 38 that suppresses the engagement of the rod-shaped body is provided.

Hereinafter, each structure of the said 1st invention-5th invention is demonstrated.
In the first device, “screw engagement” means engagement by screwing between a male screw portion and a female screw portion. The “alignment frame portion” refers to a portion of a window sash, door sash, door sash, or the like where the frame portions that hold the plate surfaces of the outer sash and the inner sash face each other and overlap each other.
The first device includes not only the structure of the second device but also a structure in which the distal end portion of the advance / retreat member 12 is a female screw portion 10 and the engagement receiving portion 9 is provided with a male screw portion 11.
In the first device, “built in the inner frame portion of the inner sash” includes a case where it is completely accommodated in the inner frame portion and a case where a part is exposed from the inner frame portion. The higher the degree of incorporation in the alignment frame portion, the less visible from the outside, which is preferable.

In the third device, the protrusions 23 and the recesses 35 function as engagement means for connecting the advance / retreat member 12 and the key 3.
In the fourth device, the housing member 6 can be formed simultaneously with the formation of the inner frame portion 5 at the time of manufacturing the sash.

The effects of each device will be described below.
If it is the 1st device, it has the following peculiar effects (i)-(d).
(A) Since the advancing / retracting member is attached so as to be built in the inner frame portion of the inner sash, the position of the advancing / retreating member may be difficult to understand when viewed from the outside, unlike the stopper, if necessary. Yes, it can improve crime prevention.
(B) Since the advancing / retreating member is accommodated in the inner alignment frame during unlocking by the biasing force of the elastic member accommodated in the inner alignment frame, the advancing / retreating member protrudes from the inner alignment frame during unlocking. This prevents the movement of the outer sash and the inner sash.
(C) Since a separate key is required to release the locked state, it is difficult for a thief or the like to enter the room unless the key is found.
(D) Since the thread engagement between the male thread part and the female thread part is used, the lateral width can be reduced.

  If it is the 2nd device, since the tip part of the advance / retreat member is a male screw part and the female screw part is provided in the engagement receiving part, the diameter of the tip part of the connecting member can be reduced and the engagement receiving part is also compact. Can be formed.

  If it is the 3rd device, the key and the advance / retreat member can be rotatably connected by engaging the protrusion of the connecting portion with the recess of the connected portion. Alternatively, the key and the advance / retreat member can be rotatably connected by engaging the recess of the connecting portion with the protrusion of the connected portion. Further, by forming the basic shape in which the protrusions or recesses are formed into a cylindrical or circular engagement recess, the advance / retreat member is rotated by a member other than the key tool, rather than configuring the basic shape as a square or a triangle. It becomes difficult and can improve crime prevention.

If it is the 4th device, the work which attaches a retreating member and a spring to the inner frame part of a sash can be simplified.
If it is the 5th device, since it can suppress engagement of rod-like objects other than the connecting part of a key, crime prevention can be improved.

Hereinafter, embodiments of a sash locking device according to the present invention will be described with reference to the drawings.
1 and 2 are cross-sectional views of a window sash alignment frame for explaining the locking device according to the first embodiment of the present invention. FIG. 1 is an unlocked state, and FIG. 2 is a locked state. FIG.
FIG. 3 is an exploded perspective view of the locking device.

  As shown in FIG. 1, the locking device 1 of the present embodiment is provided on the inner frame portion 5 of the inner sash 4 and the outer frame portion 8 of the outer sash 7. An advancing / retracting member 12 that moves inwardly and outwardly is attached so as to be incorporated in the inner frame portion 5 of the inner sash 4. An engagement receiving portion 9 is attached to the outer frame portion 8 of the outer sash 7.

  The advancing / retreating member 12 is a member provided with a male screw portion 11 on the front end side (outside of the room) and a connected portion 15 on the rear end side (inside of the room). The connected portion 15 is constituted by an engaging recess 17, and a connecting portion 22 of the key 3 described later is inserted into the engaging recess 17.

  The engagement receiving portion 9 is constituted by an attachment member having a female screw portion 10. Then, the male screw portion 11 of the advance / retreat member 12 is brought into the locked state by screwing the female screw portion 10 of the engagement receiving portion 9, and the unlocked state is made by releasing the male screw portion 11 and the female screw portion 10. It is constituted as follows.

  The locking device 1 shown in FIGS. 1 to 3 includes a lock 2 and a key 3. The locking device 2 includes a housing member 6 attached so as to be incorporated in the inner frame portion 5 of the inner sash 4 and the engagement receiving portion 9 described above.

  The accommodating member 6 accommodates the aforementioned advancing / retracting member 12 and a spring 13 as an elastic member 18 having an action of returning the advancing / retreating member 12 into the inner frame portion 5 in the unlocked state.

  The housing member 6 includes a case portion 30 and a lid portion 31. The case member 30 houses the advance / retreat member 12 and the spring 13. The case portion 30 is provided with a first opening 29 (see FIG. 1) through which the male screw portion 11 advances and retreats. The lid 31 is provided with a second opening 32 (see FIG. 1) into which the connecting portion 22 of the key 3 is inserted. The case portion 30 is inserted and fixed inside the inner frame portion 5 of the inner sash 4. A lid portion 31 is detachably attached to the fixed case portion 30 from the indoor side by screwing. The case portion 30 may be formed integrally with the inner frame portion 5 when the inner sash 4 is manufactured.

  As shown in FIG. 1, one end on the inner side of the spring 13 is in pressure contact with the inner receiving surface 24 of the advance / retreat member 12, and the other end on the outer side is in pressure contact with the outer receiving surface 33 of the case portion 30. The configuration of the inner receiving surface 24 of the advance / retreat member 12 is not particularly limited as long as it can substantially receive the spring 13. The advancing / retracting member 12 is provided with a guide portion 28 that slides smoothly with respect to the inner wall of the case portion 30.

  The spring 13 is a spring that urges the advance / retreat member 12 inward, maintains the state of the advance / retreat member 12 in the housing member 6 in an upright state, and cooperates with the guide portion 28 to press the key 3. Accordingly, the function of guiding the male screw portion 11 of the advance / retreat member 12 toward the female screw portion 10 is also achieved.

  As shown in FIG. 3, the key device 3 includes a gripping part 20, a bar-shaped part 21 extending from the gripping part 20 in a bar shape, and a connecting part 22 provided at the tip of the bar-shaped part 21. The connecting portion 22 is provided with a plurality of protrusions 23, and the protrusions 23 are fitted one-on-one with the engagement recesses 17 of the advance / retreat member 12, and the key 3 is rotated to rotate the advance / retreat member 12. It is configured to be able to be made.

4 (A) to 4 (D) are diagrams showing the configuration of the engaging recess, FIGS. 4 (A), 4 (C), and 4 (D) are plan views of the advancing and retracting members, respectively, and FIG. 4 (B) is FIG. It is a BB line longitudinal cross-sectional view of (A).
The engagement recess 17 shown in FIG. 4A has a configuration in which eight recesses 35 into which the protrusions 23 (see FIG. 3) of the connecting portion 22 are fitted are provided on the inner wall surface 36 of the circular recess. The bottom portion 37 (see FIG. 4B) of the engaging recess 17 is provided with a protruding portion 38, and a rod-like body other than the connecting portion 22 is inserted into the engaging recessed portion 17 by the protruding portion 38 so that the advance / retreat member 12 is moved. The rotation is suppressed. On the other hand, as shown in FIG. 3, the connecting portion 22 of the key 3 is formed with a recess 26 into which the protruding portion 38 can be inserted.
In addition, the basic shape of the connection part in which a protrusion or a recess is formed is preferably a cylindrical shape. Moreover, it is preferable that the basic shape of the engagement recessed part in which a recessed line or a protrusion is formed is a circular recessed part.

  Further, in the configuration shown in FIG. 4C, a configuration in which five recesses 35 are provided on the inner wall surface 36 is shown. In the configuration shown in FIG. 4D, a configuration in which the protrusion 23 is provided in the engagement recess 17 and the shape of the connecting portion 22 of the key 3 is a recess is shown. Thus, by providing a large number of combinations of engagements, it is possible to provide a locking device having a sufficient crime prevention property with a simple configuration.

The operation of this embodiment will be described.
As shown in FIG. 1, in the unlocked state, the advance / retreat member 12 is in a state of being accommodated in the inner alignment frame portion 5 by the action of the spring 13. In this state, since the advance / retreat member 12 does not protrude, the inner sash 4 and the outer sash 7 can be freely opened and closed.

  From this state, the connecting portion 22 at the tip of the key device 3 is inserted and fitted into the engagement recess 17 of the advance / retreat member 12, and the key device 3 is rotated while being pressed toward the outer sash 7 against the pressing force of the spring 13. Then, the male screw portion 11 of the advance / retreat member 12 starts to be screwed with the female screw portion 10 of the engagement receiving portion 9.

  Further, when the key 3 is rotated, the male screw portion 11 is screwed into the female screw portion 10 as shown in FIG. This state is a locked state. In this locked state, the outer frame portion 8 and the inner frame portion 5 are connected by the advance / retreat member 12, and the inner sash 4 and the outer sash 7 cannot be opened and closed. When locking is completed, the key 3 and the engagement recess 17 are disengaged, and the key 3 is put on, or the key 3 may be hidden in a place that is difficult for an intruder to understand.

  If it is the structure of this embodiment, since the advancing / retreating member 12 is the structure incorporated in the inner alignment frame part 5, when it sees from the outside, there exists an advantage which is hard to understand where a locking device is. Even if the locking device is discovered, the lock 2 cannot be unlocked without the key 3, so when a thief or the like enters the room, it is necessary to break the window sash to the size that the body can enter. , Can increase the crime prevention.

  Further, when moving from the unlocked state to the locked state, the advancing / retracting member 12 advances from the inside to the outside, and when shifting from the locked state to the unlocked state, the advancing / retracting member 12 only retreats from the outside to the inside. Even a general sash frame in which the widths of the outer frame 5 and the outer frame 8 are narrow can be attached.

  Further, the main component of the locking device is composed of only the engagement receiving portion 9 having the female screw portion 10, the advance / retreat member 12 having the male screw portion 11, and the spring 13, so that the configuration is simple. Can be manufactured at low cost. For this reason, even if the sash according to the present invention is adopted in all the sashes in the house, the cost is low.

(Second Embodiment)
FIGS. 5 and 6 are views of a window configuration showing a second embodiment of the present invention, respectively. FIG. 5 is a transverse sectional view of the window configuration, and FIG. 6 is a partial sectional perspective view of the window configuration.
The feature of this second embodiment is that the locking device according to the above embodiment is adopted in a window configuration having an outer window sash 40 and an inner shoji (hereinafter referred to as inner shoji) 41 as shown mainly in FIG. For this purpose, each of the shojis 41 is provided with an insertion hole 43 into which the rod-shaped portion 21 of the key can be inserted into the mating frame portion 42 of the inner shoji 41, and the coupling hole 17 is connected to the engagement recess 17 of the advance / retreat member 12 The part 22 is inserted so that unlocking and locking operations can be performed. In this configuration, even if the window sash 40 is provided with the inner impeller 41, the window sash 40 can be unlocked and locked.

The present invention can be variously modified within the scope of the present invention as well as the above-described embodiment.
(1) For example, in the above-described embodiment, the connected portion of the advancing / retreating member has been described as the engagement recess, but the engagement recess is an engagement protrusion that is prevented from protruding from the inner sash frame, and the key is connected. It is also possible to configure the part with an engaging recess. In addition, although the elastic member is constituted by a spring, various elastic members such as a leaf spring can be employed.

(2) In the above-described embodiment, the connecting portion of the key portion is configured by a cylindrical column having protrusions. However, if the manufacturing cost is allowed to be high, a complicated unevenness like a general key is formed. It is also possible to configure the connecting recesses provided, and to configure the engaging recesses as complex recesses into which such keys can be inserted.

FIG. 1 is a cross-sectional view showing an unlocked state in the locking device according to the first embodiment of the present invention. FIG. 2 is a cross-sectional view showing a locked state in the locking device according to the first embodiment of the present invention. FIG. 3 is an exploded perspective view of the locking device according to the first embodiment. 4 (A) to 4 (D) are diagrams showing the configuration of the engaging recess, respectively, FIGS. 4 (A), 4 (C), and 4 (D) are plan views of the advancing and retracting members, respectively, and FIG. 4 (B) is FIG. It is a BB line longitudinal cross-sectional view of A). FIG. 5 is a cross-sectional view of a window configuration showing a second embodiment of the present invention. FIG. 6 is a partial cross-sectional perspective view of a window configuration showing a second embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Locking device, 3 ... Key implement, 4 ... Inner sash, 7 ... Outer sash, 8 ... Outer frame part, 9 ... Engagement receiving part, 10 ... Female screw part, 11 ... Male screw part, 12 ... Advance / retreat member , 13 ... spring (18 ... elastic member), 14 ... housing member, 15 ... connected portion, 17 ... engaging recess, 22 ... connecting portion, 23 ... protrusion, 35 ... recess, 38 ... protrusion.

Claims (5)

An advancing / retracting member that moves inward and outward so as to be incorporated in the inner fitting frame portion of the inner sash is attached, an engagement receiving portion is attached to the outer fitting frame portion of the outer sash, and the distal end portion of the advancing / retreating member is attached to the engagement receiving portion. A sash locking device that is locked by screw engagement and unlocked by releasing screw engagement between the distal end portion of the advance / retreat member and the engagement receiving portion,
The advancing and retracting member is configured to be accommodated in the inner aligning frame portion at the time of unlocking by the urging force of the elastic member accommodated in the inner aligning frame portion, and a connected portion is provided at a rear end portion of the advancing and retracting member, The connecting portion of the key device separate from the advancing / retracting member is connected to the connected portion of the advancing / retreating member so as to advance and release the screw engagement by rotating the key device. A sash locking device. The sash locking device according to claim 1, wherein the distal end portion of the advance / retreat member is a male screw portion, and a female screw portion is provided in the engagement receiving portion. The sash locking device according to any one of claims 1 to 2, wherein the connecting portion is formed in a columnar shape having a protrusion or a recess, and the connected portion is a recess or a protrusion. The sash locking device formed in the circular engagement recessed part in which was formed. The sash locking device according to any one of claims 1 to 3, wherein the elastic member is configured by a spring, the spring and the advancing / retracting member are accommodated in a housing member, and the housing member is fitted to an inner frame. Sash locking device attached to the section. The sash locking device according to any one of claims 1 to 4, wherein the connected portion is an engaging recess, and the engagement of a rod-like body other than the connecting portion is suppressed on the bottom surface of the engaging recess. A sash locking device provided with a protruding portion.

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