JP2001098824A - Locking check device of crescent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To check whether a crescent is locked surely, by a 'sound', when the operating handle of the crescent is turned in the locking direction. SOLUTION: A mounting seat plate 21 having a projected support part 26, a drive latch 30 attached to the mounting seat plate 21 through the intermediary of fixing shafts 31 so that it can move forwards and backwards and rotate and a striking piece 45 which is installed in an attached state, on one side of the driving latch 30 through the intermediary of the fixing shafts 31, similarly, and which has a striking part 50 which can strike on the support part 26, are provided internally in a cover box 10 respectively. When an operation handle 3 is turned in the locking direction, an edge part 3a thereof comes into slide contact with an engaging pawl part 36 and both of the drive latch 30 and the striking piece 45 move backwards into the cover box 10 against the spring force of a spring member 40, while being guided by guide slots 33 and 48. While when the edge part 3a of the operation handle 3 goes over the engaging pawl part 36, the engaging pawl part 36 of the drive latch 30 is made so substantially spring out from a window 12 of the cover box 10 by the restoring force of the spring member 40, while the striking part 50 of the striking piece 45 strikes on the support part 26 of the mounting seat plate 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crescent lock confirmation device.

[0002]

2. Description of the Related Art Conventionally, inventions relating to the structure of a crescent are disclosed in, for example, Japanese Patent Application Laid-Open Nos. 9-78901 and 9-2.
No. 17537 discloses this. Many of these conventional crescents are mainly intended for crime prevention.

[0003] By the way, the crescent generally has a slide lock mechanism, but in daily life, unless the user goes out for a long period of time, the lock mechanism is not locked and the operation handle is simply locked. It is general to rotate in the (engagement) direction so that a semi-arc-shaped crescent engaging piece is engaged with the hook-shaped crescent receiving bracket. However, the engagement state between the engagement piece and the receiving metal varies depending on the person, and there are, for example, a person who locks completely and a person who locks halfway.

[0004] Therefore, there is a demand for an apparatus which can check the locked state of the crescent without changing the structure of the crescent, which has already been implemented.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned demands, and a first object of the present invention is to check whether or not the crescent is securely locked when the operating handle of the crescent is turned in the locking direction. That is, it can be confirmed by "sound". A second object is that each component can be rationally incorporated into the cover box. A third object is that the drive latch and the hitting piece can operate smoothly.

[0006]

According to the present invention, a cover box 10 having a window 12 on one side wall is fixed to a vertical side wall Y of a window sash so as to face the operating handle 3 of the crescent 1. , This cover box 1
0, a mounting seat plate 21 having a receiving portion 26, a driving latch 30 attached to the upper surface of one side of the mounting seat plate 21 via a fixed shaft 31 so as to be able to move forward and backward and to rotate. The receiving part 26 and a plate-shaped striking piece 45 having a striking part 50 capable of being struck are provided inside one side of the driving unit 30 via the fixed shaft 31. The latch 30 and the striking piece 45 are urged by the spring member 40 when the engaging claw portion 36 of the drive latch 30 substantially protrudes from the window 12 and rotates the operation handle 3 in the locking direction.
The edge 3a of the operation handle 3 is in sliding contact with the engagement claw 36, and the drive latch 30 and the hitting piece 45 are both guided elongated holes 33, 48.
Is retracted into the cover box 10 against the spring force of the spring member 40 while being guided by the rim 3a of the operation handle 3.
Is over the engaging claw portion 36, the engaging claw portion 36 of the drive latch 30 is moved by the return force of the spring member 40.
The striking portion 50 of the striking piece 45 collides with the receiving portion 26 of the mounting seat plate 21 while substantially protruding from the window 12 of the zero.

In the crescent lock confirmation device of the present invention, a cover box 10A having a window 12 on one side wall is fixed to a vertical side wall Y of a window sash so as to face the operation handle 3 of the crescent 1, and the cover box 10A The mounting seat plate 21, a drive latch 30 which is attached to the upper surface of one side of the mounting seat plate 21 via a fixed shaft 31 so as to be able to move forward and backward and to be rotatable. A plate-shaped striking piece 45A having a striking portion 50A that can be struck with the inner wall surface of the cover box 10A is installed inside the fixed box 31 in an attached state. When the impacting piece 45A is urged by the spring member 40, the engaging claw 36 of the drive latch 30 is
When the operating handle 3 is rotated in the locking direction, the edge 3a of the operating handle 3 slides against the engaging claw portion 36, and the drive latch 30 and the hitting piece 45A are both brought into the guide slot 3.
While being guided by the operating handle 3, the operating handle 3 retracts into the cover box 10 </ b> A against the spring force of the spring member 40.
When the edge 3a of the drive latch 30 exceeds the engagement claw portion 36, the engagement claw portion 36 of the drive latch 30 substantially jumps out of the window 12 of the cover box 10A due to the return force of the spring member 40, and the striking of the striking piece 45A. The portion 50A collides with the inner wall surface of the cover box 10A.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will now be given of a crescent lock confirmation device X shown in the drawings. First, Crescent will be briefly described. The crescent is mounted on the side wall of a window sash that slides horizontally through a window frame formed in the building as is well known. 1 and 2 show an example of the crescent 1 by a virtual line. The crescent 1 includes a case body 2 fixed to a vertical side wall Y of the window sash via a fixing tool, and an operation lever 3 rotatably provided on the case body 2. The form of the case body 2 is not particularly limited, but generally, the case body 2 generally includes a base plate 2a having mounting screw holes at upper and lower sides, and a base plate 2a.
and a box portion 2b protruding in the shape of a long box at the center of a. As shown in FIG. 2, the operation lever 3 is pivotally supported by the case body 2 so as to face the surface (one side surface) 4 of the box portion 2b, and engages with a hook-shaped crescent receiving bracket (not shown). Has a crescent engagement piece 5.

Next, a description will be given of the crescent lock confirmation device X. In the description of this embodiment, the upper / lower /
The terms left and right refer to FIG.

Reference numeral 10 denotes a cover box whose back is open. The cover box 10 is made of a synthetic resin material and is formed in a rectangular box shape with one side opening, and a rectangular window 12 is formed in a portion near the upper portion of the surface 11. The cover box 10 includes upper and lower walls 1 which are continuous from four sides of the surface 11 (herein, referred to as "one side wall" for convenience) and face each other.
3 and 14 and left and right side walls 15 and 16. Therefore, the inside of the cover box 10 is a space in which the components described below can be stored.

Incidentally, one side wall 1 of the cover box 10
The width of the left and right of the base 1 is substantially the same as the width of the base plate 2a of the crescent 1, as shown in FIG. Also, the widths of the left and right side walls 15 and 16 of the cover box 10 reaching the open ends are substantially the same as those of the box portion 2b of the crescent 1, as shown in FIG.

Therefore, when the cover box 10 is mounted on the upper end surface of the base plate 2a of the crescent 1, the window is brought into contact with the upper end surface of the base plate 2a as shown in FIGS. 1 and 2, for example. When fixed to the vertical side wall Y of the sash, the one side surface 11 of the cover box 10 and the surface 4 of the box portion 2b of the crescent 1 are substantially the same vertical surface.

Next, each component stored in the cover box 10 will be described. Reference numeral 21 denotes a metal mounting seat plate fixed to the vertical side wall Y of the window sash with reference to the upper end surface of the base plate portion 2a of the crescent 1. This mounting seat plate 21
Is fixed to the window sash via a plurality of fixing tools (mounting screws) 22. The mounting seat plate 21 is formed in an L-shape as a whole, and in this embodiment, the mounting position adjusting insertion hole 2 is formed.
3 and a horizontal bearing plate 25 bent horizontally from the upper end of the mounting plate 24. Is formed with a projecting piece-shaped receiving portion 26 which rises in the vertical direction. A pair of shaft through holes 27 are formed in the center of the bearing plate 25.

The mounting seat plate 21 is shown in FIGS.
As shown in FIG. FIG. 3 is an explanatory view seen from line 3-3 (above the crescent) in FIG.
Is in contact with the inner wall surface of one side surface 11 of the cover box 10 and / or as if it were in contact therewith. On the other hand, FIG. 4 is a rear view in the case where FIG. 1 is a front view, and is formed at the open lower end of the lower wall 14 of the cover box 10 in the center of the lower end of the vertical mounting plate 24 of the mounting seat plate 21. Notch 14
a is provided with a short piece-shaped fitting projection 24a that fits loosely with the a.

Numeral 30 denotes a horizontal bearing plate portion 25 of the mounting seat plate 21.
Is a drive latch slidably attached to the upper surface of one side via a plurality of fixed shafts 31. The drive latch 30 is formed of a synthetic resin material in a disk shape, and a recess 32 is provided on the upper surface of one side of the disk body.
The horizontal guide slot 33 has a guide notch 33 a capable of receiving another fixed shaft 31. Therefore, as described later, the drive latch 30 can not only move forward and backward with respect to the cover box 10 but also rotate about one fixed shaft 31 as a fulcrum. Reference numeral 35 denotes an arc-shaped first surrounding wall portion connected to the bottom plate portion 34. The first surrounding wall portion 35 has an engaging claw portion 36 at a central portion or a portion near the central portion of the outer peripheral wall. The engaging claw portion 36 has a tapered surface 3 that slidably contacts the inner edge 3a of the operation lever 3 in a tangential direction.
6a and a locking surface 36b provided in a direction intersecting the tapered surface 36a are formed.

On the other hand, reference numeral 37 denotes a second arcuate wall surrounding the bottom plate 34, which is slightly arcuate. The second wall 37 is provided with respect to the first wall 35, but the first wall 37 is provided on the first wall 35. It is thinner than the wall 35. That is, if the surrounding wall portions 35 and 37 are described by focusing on the height difference with reference to the bottom plate portion 34,
The first surrounding wall 35 is higher than the second surrounding wall 37 (has a stepped shape).

Incidentally, the first surrounding wall 35 and the second surrounding wall 37 are separated from each other via two notches. The small notch 38 in the drawing is for fitting one end 40 a of the spring member 40 wound around one of the fixed shafts 31, and is formed on the opposite side to the small notch 38. The large (wide) notch 39 is for inserting the other end 40 b of the spring member 40.

Reference numeral 45 denotes a metal impacting piece which is incorporated in one side of the driving latch 45 via a plurality of fixing members 31. The striking piece 45 includes a wide fitting portion 46 that engages with the first surrounding wall portion 35 and the second surrounding wall portion 37 of the drive latch 30.
And the first surrounding wall portion 3 connected to the wide fitting portion 46.
5 and a projecting piece 47 projecting from

The wide fitting portion 46 is provided with a guide slot 48 corresponding to the horizontal guide slot 33 of the drive latch 30 described above. The wide fitting portion 46 includes
A semicircular portion 49 regulated by the arc-shaped inner peripheral wall of the first surrounding wall 35 is formed. On the other hand, an impact portion 50 is formed on the protruding portion 47 so as to be bent vertically downward.

In the present embodiment, when the plate-shaped hitting piece 45 is attached to one side of the drive latch 45 in an attached state, a part of the wide fitting portion 46 becomes a second surrounding wall portion. 3
7 is on the upper surface. In this case, the driving latch 4
The second surrounding wall portion 37 of No. 5 is not always an essential requirement,
Since the size of the central portion of the spring member 40 or the direct contact with the spring member 40 causes the stability of the striking piece 45 to be lost, the surrounding wall portions 35 and 37 are desirably formed in a stepped shape and are low. It is better to support the hitting piece 45 on the second surrounding wall 37.

In the above configuration, the case where the crescent lock confirmation device X is attached to the vertical side wall Y of the window sash will be briefly described. As described above, the lock confirmation device X is configured such that the upper end surface of the base plate portion 2a of the
And mounted above the crescent 1 as shown in FIG. In this case, when the operation handle 3 of the crescent 1 is locked, the operation end of the operation handle 3 located above is positioned on one side 11 of the cover box 10 of the lock confirmation device X.
Must be opposed to

In view of this, the metal mounting seat plate 21 is first fixed to the vertical side wall Y of the window sash via the fixing tool 22 with the turning position of the operation handle 3 in mind. Next, the driving latch 30
Of the first surrounding wall 35 and the second surrounding wall 37
Is installed in the attached state. In this case, each end 4 of the spring member 40
0a, 40b are large and small cutouts 38, 39 of the striking piece 45.
To fit in. Next, the fixed shaft 31 is inserted through the horizontal elongated hole 48 of the hitting piece 45, the central portion of the spring member 40, the horizontal guide elongated hole 33 of the drive latch 30, and the axial through hole 27 of the mounting seat plate 21, respectively. And the cover box 10
Cover each member with.

Next, the operation of the present embodiment will be described with reference to FIGS. FIG. 6 is an explanatory diagram when the operation handle 3 of the crescent 1 is moving in the locking direction indicated by the arrow A. At the time of unlocking when the crescent engaging piece 5 is not engaged with the hook-shaped crescent receiving bracket, the drive latch 30 and the hitting piece 45 are urged by the spring member 40 wound around one of the fixed shafts 31. The engaging claw portion 36 of the drive latch 30 substantially protrudes from the window 12 of the cover box 10 (initial state).

When the operating handle 3 of the crescent 1 is rotated in the locking direction of arrow A, the edge 3a of the operating handle 3 comes into sliding contact with the tapered surface 36a of the engaging claw 36.
Then, the drive latch 30 and the hitting piece 45 are retracted into the cover box 10 against the spring force of the spring member 40 while being guided by the fixed shaft 31.

FIG. 7 is a continuation of FIG. Operation handle 3
Of the engaging claw 36 while the edge 3a of the
Is exceeded, the return force of the spring member 40 is immediately
And the driving latch 30 is joined via the striking piece 45, and both members 45 and 30 try to return to the initial state together. As a result, the engaging claw portion 36 of the drive latch 30 substantially jumps out of the window 12 of the cover box 10 and the metal impact piece 4
5 strikes against the protruding receiving portion 26 of the metal mounting seat plate 21. At this time, the sound "Metallic sound: snapping" is heard.

Next, FIGS. 8 and 9 are explanatory diagrams in the case where the crescent 1 changes from the locked (engaged) state to the unlocked (non-engaged) state. When the operation handle 3 is rotated in the direction of arrow B,
The edge 3 a of the operation handle 3 is engaged with the locking surface 36 of the engagement claw 36.
It will look like pressing b. Therefore, the drive latch 30 pressed by the edge 3a of the operation handle 3 is fixed to the fixed shaft 31.
Start rotating around one of the fulcrum. In this case, the striking piece 45 remains as it is. When the drive latch 30 is independently rotated in the counterclockwise direction, the guide notch 3 for releasing the drive latch 30 is provided.
Another fixed shaft 31 enters 3a. Then, when the edge 3a of the operation handle 3 moves to the tapered surface 36a, the drive latch 30 returns to the initial state by the spring force of the spring member 40.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Although the cover box 10 and the crescent 1 of the lock confirmation device X of the crescent are separate bodies,
The cover box 10 may be formed on itself. In this case, the cover box 10 is the base plate 2a of the crescent 1.
Alternatively, it is integrally formed on the upper side of the box portion 2b.

Next, a second embodiment of the present invention shown in FIGS.
An example will be described. Since the configuration of the second embodiment is the same as that of the first embodiment, the same reference numerals are used for the same portions, and duplicate description will be omitted.

The main difference between the second embodiment and the first embodiment is that the projection 4
7A is formed in a slightly longer diameter shape, and an impact portion 50A bent at the tip of the projecting portion 47A is directly formed on the inner wall surface of one side wall (front surface) 11A of the cover box 10A as shown in FIG. The configuration is such that collision occurs, and therefore, the projecting piece-shaped receiving portion is not formed on the mounting seat plate 21A. In the case of this embodiment, the material of the cover box 10A is desirably metal so that the sound reverberates.

[0030]

As apparent from the above description, the present invention has the following effects. (1) When the operation handle of the crescent is turned in the locking direction, it is possible to confirm by sound whether or not the crescent is securely locked. (2) Each component can be rationally assembled in the cover box. (3) The drive latch and the striking piece operate smoothly.

[Brief description of the drawings]

1 to 9 are explanatory views showing a first embodiment of the present invention. FIGS. 10 and 11 are explanatory views showing a second embodiment of the present invention.

FIG. 1 is a schematic explanatory view showing an embodiment of the present invention (this is a front view).

FIG. 2 is a schematic explanatory view showing an embodiment of the present invention (when a window is viewed from inside a room).

FIG. 3 is an explanatory view seen from line 3-3 (above the crescent) in FIG. 1;

FIG. 4 is a rear view based on FIG. 1;

FIG. 5 is an exploded perspective view.

FIG. 6 is an explanatory diagram when the operation handle is turned in the locking direction.

FIG. 7 is an explanatory diagram when the edge of the operation handle exceeds an engagement claw.

FIG. 8 is an explanatory diagram when the operation handle is turned in the unlocking direction.

FIG. 9 is an explanatory diagram when the edge of the operation handle is separated from the engagement claw.

FIG. 10 is a view similar to FIG. 5 of a second embodiment.

FIG. 11 is a view similar to FIG. 7 of a second embodiment.

[Explanation of symbols]

X: Lock confirmation device, Y: Vertical side wall of window sash, 10, 1
0A: cover box, 11, 11A: one side wall, 12:
Windows, 21, 21A: mounting seat plate, 24: mounting plate portion, 25:
Bearing plate part, 26 ... receiving part, 30 ... drive latch, 32 ...
Recess, 33 ... horizontal guide slot, 34 ... bottom plate, 35 ... first
Surrounding wall portion, 36: engaging claw portion, 36a: tapered surface, 36b
... locking surface, 37 ... second surrounding wall, 38 ... small notch, 39
... Important missing part, 40 ... Spring member, 40a ... One end part, 40b
... the other end, 45, 45A ... impact piece, 46 ... fitting part, 4
7, 47A: protruding piece portion, 48: guide slot, 49: semicircular portion, 50, 50A: impact portion.

Claims (5)

[Claims] 1. A cover box 10 having a window 12 on one side wall is fixed to a vertical side wall Y of a window sash so as to face the operation handle 3 of the crescent 1.
0, a mounting seat plate 21 having a receiving portion 26, a driving latch 30 attached to the upper surface of one side of the mounting seat plate 21 via a fixed shaft 31 so as to be able to move forward and backward and to rotate. The receiving part 26 and a plate-shaped striking piece 45 having a striking part 50 capable of being struck are provided inside one side of the driving unit 30 via the fixed shaft 31. The latch 30 and the striking piece 45 are urged by the spring member 40 when the engaging claw portion 36 of the drive latch 30 substantially protrudes from the window 12 and rotates the operation handle 3 in the locking direction.
The edge 3a of the operation handle 3 is in sliding contact with the engagement claw 36, and the drive latch 30 and the hitting piece 45 are both guided elongated holes 33, 48.
Is retracted into the cover box 10 against the spring force of the spring member 40 while being guided by the rim 3a of the operation handle 3.
Is over the engaging claw portion 36, the engaging claw portion 36 of the drive latch 30 is moved by the return force of the spring member 40.
A crescent lock confirmation device characterized in that the striking portion 50 of the striking piece 45 collides with the receiving portion 26 of the mounting seat plate 21 while substantially popping out of the window 12 of the crescent. 2. The driving latch 30 according to claim 1,
A lock confirmation device for a crescent, which moves forward and backward through a plurality of fixed shafts 31. 3. The device according to claim 1, wherein the striking piece 45 and the mounting seat plate 21 are metal members. 4. The driving latch according to claim 1, wherein
The drive latch 30 has stepped surrounding walls 35, 37 through large and small cutouts 39, 38 for receiving both ends of the spring member. A crescent lock confirmation device characterized in that: 5. A cover box 10A having a window 12 on one side wall so as to face the operation handle 3 of the crescent 1.
Is fixed to the vertical side wall Y of the window sash, and the cover box 10A is provided with a mounting seat plate 21 and a movable shaft that is movable forward and backward and rotatable via a fixed shaft 31 on one upper surface of the mounting seat plate 21. A driving latch 30 and a hitting portion 5 which is assembled to one side of the driving latch 30 via a fixed shaft 31 in an attached state and which can hit the inner wall surface of the cover box 10A.
The driving latch 30 and the striking piece 45A are urged by a spring member 40 so that the engaging claw 36 of the driving latch 30 is provided.
When the operating handle 3 is rotated in the locking direction, the edge 3a of the operating handle 3 slides on the engaging claw portion 36, and the drive latch 30 and the hitting piece 45A are both elongated guide holes 33, 48. Is retracted into the cover box 10A against the spring force of the spring member 40 while being guided by the
With the return force of 0, the engaging claw portion 36 of the drive latch 30 substantially jumps out of the window 12 of the cover box 10A, and the hitting portion 50A of the hitting piece 45A collides with the inner wall surface of the cover box 10A. Crescent's lock confirmation device.