JP2002147091A - Crescent lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crescent lock lockable/unlockable by vertical sliding operation and having a new mechanism free from interference of the crescent lock with an inner sash regardless of its position. SOLUTION: An interlocking gear of disc shape with a plurality of teeth, and an engaging body are fixed to both ends of a rotary shaft passed through a rotary shaft insertion hole rotatably to a pedestal. A sliding member of U- shape having a plurality of square grooves in a vertical direction is mounted to the pedestal so as to be linearly movable only in a vertical direction in the mutually meshed state of the square grooves and the teeth of the interlocking gear. The vertical motion of the sliding member is converted into the rotary motion of the engaging body through the interlocking gear to obtain the rotary motion of the engaging body and to allow the engaging body to be engaged with a receiver. The sliding member is mounted with an operating cover of L-shape or U-shape covering the front side of a meeting stile or even the side face opposite to the crescent lock side to allow operation regardless of the position of the inner sash.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, a crescent lock has been generally used to maintain security and airtightness of a window. Usually, a crescent lock is provided on a side of a mating frame inside a room and a crescent lock is mounted on a mating frame outside the room. As shown in FIG. 13, the crescent lock is composed of a pedestal, an engaging body, and a handle. The engaging body and the handle are rotatably connected to and fixed to the pedestal. The uniting also rotates at the same time, and is unlocked by engaging with the claw portion of the receiver.

The movement of the handle of a crescent lock which is unlocked by rotating the handle is positioned parallel to the glass surface of the window in the unlocked state, and becomes perpendicular to the glass surface of the window as the handle is rotated. In the position rotated 90 °, the glass surface stands upright inside the room with respect to the glass surface, and then rotates further and rotates 180 ° to become a position parallel to the glass surface again in the locked state. As for the operability, it is important that the handle is easy to hold because the handle is picked up with a finger and rotated to lock and unlock, and there is a problem that a short and small handle is difficult to operate for a disabled person or an elderly person.

[0004]

However, when the handle is lengthened, the turning diameter of the handle tip also increases as described above, and there is no particular problem in the case of a normal sliding window, but a double window used in a cold region or the like. Also, in the case of a window with an inner sash that is made by sticking Japanese paper on a lattice near the inside of a glass window that is common in Japanese rooms, the problem that the handle of the crescent lock interferes with the inner sash when the handle rotates. Occurs. If the distance between the glass window and the inner sash is set wider, the above problem can be solved, but the inner sash will naturally enter the interior of the room and try to maximize the room within the limited site area. Inconsistent with the direction in.

Further, when the handle of the crescent lock is rotated, even if an inner shroud is provided at a position as far as the tip of the handle does not contact, both inner shrouds are moved in a direction in which the crescent lock is not completely hidden. It is good to operate later, but if the inner sash is half open and it reaches the crescent lock if you enter it diagonally, if you just operate it, the shoji paper will not break at the back of the hand Not necessarily.

Further, since the crescent lock cannot be seen from inside the room when the inner sash is closed, each time the crescent lock is operated, the two inner sashes are completely moved without mistake to the side where the crescent lock is not hidden. What you have to do is quite careful. Especially in Japanese-style rooms, the elderly often use it, and despite the importance of the above items and the operability of the crescent, they are inevitably contradictory. A crescent lock having a new mechanism that does not interfere with the lock and can be unlocked and unlocked as long as it can be reached is desired.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to lock and unlock a window having an inner shroud or the like without damaging the inner shroud even when the inner and outer windows are close to each other. It is an object of the present invention to provide a crescent tablet that can reduce the order and labor of opening and closing the inner sash for the operation of, and has excellent operability.

[Means for Solving the Problems]

In the present invention, the following technical means have been taken in order to achieve the above object. The engaging body has an arc shape similar to the conventional crescent tablet, a disk-shaped interlocking gear having a plurality of teeth on the circumference is provided, and both ends of the rotating shaft are passed while the rotating shaft is passed through the rotating shaft insertion hole of the pedestal. , The engaging body and the interlocking gear are fixed. At this time, the engaging body and the interlocking gear are both rotatable with respect to the pedestal so that they can rotate in parallel to the side surface of the frame. Next, a slide member having a U-shape and having a plurality of square grooves in one side in the vertical direction is provided, and a pedestal such that linear movement can be performed only in the vertical direction in a state where the square grooves and the teeth of the interlocking gear mesh with each other. After attaching the slide member to the
Assemble the pedestal and attach it to the side of the frame.

With this configuration, the vertical movement of the slide member can be converted into the rotational movement of the engagement body via the interlocking gear, and the vertical movement distance of the slide member with respect to the pedestal is determined by the semicircle of the interlocking gear. If the distance is set to be the same as the circumferential length, a 180 ° rotational movement of the interlocking gear and the engaging body is obtained, and by engaging the engaging body with the receiving body, it has a function as a crescent lock.

When the engaging member engages with the receiving member, a frictional force is generated, and a certain amount of force is required for locking. Therefore, the sliding member is moved from top to bottom by pressing operation to operate the engaging member. If this is done, easy locking becomes possible. In addition, in order to prevent the sliding member from sliding downward by its own weight in the unlocked state and to obtain a click feeling at the time of operation,
It is preferable to bias the spring so that a force is exerted on the slide member so as to exhale in the upper and lower ends with reference to the intermediate position during the movement.

An operation cover is put on the slide member to improve the design, and the operation cover is formed into an L shape so as to cover the front side of the mating frame, or is formed into a U-shape to form a crescent of the mating frame. By covering the side opposite to the lock side, even if the inner sash is opened in a direction that hides the crescent lock, the crescent lock can be operated because it can be reached. Therefore, regardless of the opening direction of the inner sash, it is possible to lock and unlock the crescent lock by simply pressing vertically on the side of the mating frame. The problem of interference can be solved.

However, in the above configuration, the engaging body is housed in the pedestal, and the interlocking gear and the slide member are located on the side portions, so that the thickness of the entire crescent lock increases to some extent.
There are restrictions on compactness. Therefore, a base fitting having a size that can be inserted into a hollow portion inside the mating frame is provided in a C shape, and the engaging body is rotatably attached to the base fitting with the rotating shaft for the engaging body, and is disposed in the mating frame. The interlocking gear is rotatably mounted on the base with the interlocking gear rotation shaft,
Further, a slide member having a plurality of square grooves is assembled so as to be movable only in the vertical direction while being fitted to the interlocking gear, and is arranged on the outer side surface of the combination frame. A mounting hole and a rotating shaft connection hole are provided on the side of the mating frame, and a notch is provided on the back of the mating frame so that the engaging body can protrude and retract. And fix it. By connecting the rotating shaft for the interlocking gear and the rotating shaft for the engaging body, it is possible to obtain the same operation as described above, and to provide a more excellent design compact form in which only the operation portion is exposed to the outside. I can do it.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show a first embodiment of the crescent tablet of the present invention. FIG. 1 shows an exploded perspective view of the crescent tablet of the present invention, and FIG. FIG. 2A shows an unlocked state, and FIG. 2B shows a locked state. FIG. 3 is a side view of the crescent tablet of the present invention, and FIG. 4 is a front view of the crescent tablet as viewed from outside. FIGS. 3A and 4A show the unlocked state.
(b) and FIG. 4 (b) show the locked state.

As shown in FIGS. 1 and 2, when the crescent lock of the present invention is attached to the
Assuming that the surface parallel to the glass surface 28 of the window as viewed from the inside of the room is the front side, the rotation shaft insertion hole 12 is provided on the side surface of the pedestal 1, and a portion where the engagement body 2 can appear and disappear is provided on the back surface side. The engaging body 2 has an arc shape similar to that of a conventional crescent lock, and is arranged so as to be housed inside the frame side of the pedestal 1 in a vertical direction.
The interlocking gear 3 has a semicircular disk shape and a plurality of teeth 1
The pedestal 1 is disposed on the opposite side so that the pedestal 1 is sandwiched between the engaging members 2 in a state where the teeth 13 at both ends face the left and right directions. The engaging body 2 and the interlocking gear 3 are fixed to both ends of the rotating shaft 4 in a state where the rotating shaft 4 having both ends in a drum shape is inserted into the rotating shaft insertion hole 12 of the pedestal 1. When the rotating shaft 4 and the interlocking gear 3 are fixed, the spring washer 8 is also fixed at the same time, and the spring 7 is incorporated so as to sandwich the spring washer 8.

Next, a U-shape is formed, and a plurality of square grooves 6
And a slide member 5 having a long hole 14 on the side surface. A guide portion 15 is provided on the pedestal 1 so that the slide member 5 can slide only in the up-down direction, and a pin portion 16 which also serves as a stopper for the slide member 5 and has an E-ring groove.
Are provided at two locations above and below. The inner surface of the slide member 5 is arranged so as to cover the outside of the guide portion 15 of the pedestal 1, the pin portion 16 is fitted into the elongated hole 14, and the E-ring 9 is used to prevent the slide portion 5 from coming off.

As shown in FIGS. 3 (a) and 4 (a), the tooth 13 at the end of the interlocking gear 3 is fitted in the lowermost square groove 6 of the slide member 5, and the lower pin portion of the pedestal 1 The pedestal 1 is fixed to the joining frame 27 with two upper and lower mounting screws 17 in such a manner that the sliding member 16 is inserted into the lowermost part of the long hole 14 of the slide member 5. This state is the unlocked state of the crescent lock. When the operation cover 10 is attached to the slide member 5 as shown in FIG. 1, the feel of touching the design surface and the hand at the time of operation can be improved.

By pushing down the slide member 5 together with the operation cover 10, the tooth 13 of the interlocking gear 3 into which the lowermost angular groove 6 of the slide member 5 is fitted is pushed, and the next tooth 13 and the next The interlocking gear 3 is rotated while the grooves 6 are sequentially engaged with each other. Since the interlocking gear 3 is fixed to the engagement body 2 together with the rotating shaft 4, the engagement body 2 also rotates. Interlocking gear 3
The number of teeth 13 and the number and pitch of the angular grooves 6 of the slide member 5 are matched, and when the interlocking gear 3 rotates 180 °, the upper end of the elongated hole 14 of the slide member 5 and the upper pin portion 16 of the pedestal 1 are locked. Therefore, the length of the long hole 14 is set so as to limit the movement of the slide member 5. This state is the locked state shown in FIG. 3B and FIG. 4B in which the engagement body 2 has been rotated by 180 °.

In order to obtain a click feeling at the time of operation and to prevent the slide member 5 from being lowered by its own weight in the unlocked state, a vertical projection is provided on the spring washer 8.
What is necessary is just to arrange so that the linear spring 7 may be pinched. At the time of the operation, a movement of discharging the slide member 5 in the up-down direction with reference to the intermediate position of the movement distance of the slide member 5 is obtained, and the slide member 5 can be held at both end positions in a normal state.

The conventional crescent lock has a locking member 2 after locking.
In many cases, an auxiliary lock 18 is attached to stop the detent. FIG. 5 shows a state where the auxiliary lock 18 is attached to the crescent lock of the present invention and viewed from the back side of the base. Pedestal 1
The auxiliary lock 18 is disposed so as to be movable in the vertical direction in a portion where the engaging body 2 is stored, and is held at a position where it does not interfere with the rotation of the engaging body 2 when unlocked. Is moved so that the end of the engagement body 2 comes into contact with the auxiliary lock 18 when returning to the release direction.

Next, the relationship between the rotational position of the handle of the conventional crescent lock and the inner shroud 29 in the window where the inner shroud 29 is located, and
First Embodiment of Crescent Tablet in the Present Invention and Inner Shoji 2
6 is shown in FIG. FIGS. 6 (a) to 6 (d) show a state in which the handle is rotated by 90 ° and the tip is closest to the inner shroud 29 in the case of the short handle and the long handle of the conventional crescent lock. Fig. 6 (a) shows the inner shoji 2
9 shows a state in which it is completely closed. As shown in FIG. 6B, the length of the handle hardly affects the operation after the inner sash 29 is completely moved to the side where the crescent lock is not hidden. However, as shown in FIGS. 6 (c) and 6 (d), when the handle of the crescent lock is reachable,
There is a danger that the shoji paper may be broken by the tip of the handle or the back of the hand because the operation may be performed just as it is.

In the crescent tablet of the present invention, since the operation is up and down slide, as shown in FIG. 6 (e), even if the inner sash 29 is in any state, it can be operated as long as it reaches the crescent tablet. Opening and closing of the inner sash 29 for the operation of the crescent lock is simplified without damaging the inner sash 29.

However, in the state where the inner sash 29 in FIG. 6A is closed, the crescent lock cannot be seen, so that the inner sash 29 in front may be opened to the side where the crescent lock is hidden. In such a case, in the first embodiment of the present invention, the crescent tablet cannot be operated, and both of the inner pallets must be moved again in the opposite direction. 7 (a) and 8 (a) show a second embodiment of the crescent tablet of the present invention, and FIGS. 7 (b) and 8 (b) show a third embodiment of the present invention. Is shown.

As shown in FIG. 7A, when the operation cover 10A is formed into an L-shape covering the front side of the mating frame, the inner shroud 29 is opened as shown in FIG. 8A. In this case, the operation can be performed by putting a finger between the glass window and the inner sash 29. Further, as shown in FIG. 7 (b), the shape of the operation cover 10B is formed into a U-shape, and when the operation cover 10B is put on the side opposite to the side of the crescent tablet, the inner sash 29 as shown in FIG. However, it becomes operable, and every time the crescent lock is locked or unlocked, the direction in which the crescent lock must be opened is mistaken, and the trouble of moving the pelvis 29 many times can be greatly reduced. Further, the slide member 5 itself may be extended to have an L-shape or a U-shape without using the operation cover 10.

FIGS. 9 to 11 show a fourth embodiment of the crescent tablet of the present invention. As shown in FIGS. 9 and 10, a C-shaped base fitting 19 of a size that can be inserted into the hollow portion of the mating frame 27 is provided, and the engaging body 2 is previously attached to the base fitting 19 with the rotating shaft 20 for the engaging body. It is assembled so as to be freely rotatable and arranged inside the combination frame 27. A U-shaped pedestal 21 is provided, and the interlocking gear 3 is rotatably mounted on the pedestal 21 together with the washer 8 for the spring with the rotating shaft 22 for the interlocking gear. The slide member 5 is attached, and is stopped by the E-ring 9, and is arranged on the outer side surface of the combining frame 27. Combined frame 27
Are provided with an interlocking gear rotary shaft insertion hole 23 and a mounting screw insertion hole 24 on the side surface of
Is provided with a cut-out portion 25 so that it can appear. The side surface of the mating frame 27 is sandwiched between the base fitting 19 and the pedestal 21 with the mounting screws 17 so as to be sandwiched from inside and outside, and the operation cover 10 is attached. FIG. 10 is a perspective view showing a state in which the crescent lock according to the fourth embodiment is attached to a combination frame 27.

FIG. 11 is a side view of the fourth embodiment, and FIG. 12 is a front view as viewed from the outside of the unit. FIG.
1 (a) and FIG. 12 (a) show the unlocked state, and FIGS. 11 (b) and 12 (b)
Indicates a locked state. A female screw portion is provided on one of the connecting portions of the rotating shaft 20 for the engagement body and the rotating shaft 22 for the interlocking gear, and fixed with the rotating shaft connecting screw 26 from the cut-out portion 25 on the back of the mating frame 27. Thereby, locking and unlocking can be performed by operating the slide member 5. Further, by forming the operation cover 10 in the shape of the second embodiment or the third embodiment, not only the same effect can be obtained, but also in appearance, the thickness is smaller, the width is smaller, and compactness is realized. it can.

[0026]

The crescent lock of the related art, which is unlocked by rotating the handle, has a problem that the inner radius of the handle interferes with the inner sash when the inner sash is present inside the room, whereas the crescent lock of the present invention has a problem. In this case, since the operation is sliding in the up and down direction, there is no interference with the inner shoji, and the inner shoji is not damaged by the handle or the back of the hand when unlocking. In addition, operation is possible as long as the crescent lock can be reached regardless of the position of the inner sash.

In the second embodiment shown in FIG. 7A in which the operation cover is formed so as to cover the front side of the combination frame,
As shown in FIG. 8A, even when the inner sash is opened in a direction in which the crescent lock is hidden, operation can be performed by inserting a finger between the glass window and the sash. As shown in FIG.
In the third embodiment in which the shape of the operation cover is U-shaped, and the operation cover is covered up to the side opposite to the crescent lock side of the mating frame, as shown in FIG. It can be operated even when it is opened halfway and it is half open, so there is no need to pay attention to the opening direction of the inner sash each time the crescent lock is opened and closed, greatly reducing the trouble of opening and closing the inner sash It is possible to do.

In the fourth embodiment, since the base fitting and the engaging member are inserted into the combined frame, the outer appearance can be made thinner and smaller in size, and the design can be made more compact. I have. In addition, the state in which the engaging body and the receiver are engaged cannot be seen from the outside, and the only movement in appearance is that the operation cover moves up and down on the side of the mating frame, making it difficult to distinguish between locking and unlocking. It is also effective in Further, the parts to be inserted into the mating frame do not require surface treatment such as painting for improving the appearance design, and are advantageous in terms of cost.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a first embodiment of a crescent tablet of the present invention.

FIG. 2 is a perspective view of the crescent lock of the present invention attached to a window of the first embodiment.

FIG. 3 is a side view of the first embodiment of the crescent tablet of the present invention.

FIG. 4 is a front view of the crescent tablet of the present invention as viewed from the outside of the first embodiment.

FIG. 5 is a schematic view of the crescent lock of the present invention provided with the auxiliary lock of the first embodiment.

FIG. 6 is a schematic view showing interference of a handle of a conventional crescent tablet with an inner sash.

FIG. 7 is a perspective view showing a second embodiment and a third embodiment of the crescent tablet of the present invention.

FIG. 8 is a schematic view showing the relationship between the crescent tablet of the present invention and the inner sash in the second and third embodiments.

FIG. 9 is an exploded perspective view of the fourth embodiment of the crescent tablet of the present invention.

FIG. 10 is a perspective view of a crescent tablet of the present invention in an attached state according to a fourth embodiment.

FIG. 11 is a side view of a fourth embodiment of the crescent tablet of the present invention.

FIG. 12 is a front view of the crescent tablet of the present invention as viewed from the outside of the fourth embodiment.

FIG. 13 is a perspective view of a conventional crescent tablet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 21 Pedestal 2 Engagement body 3 Interlocking gear 4 Rotation shaft 5 Slide bracket 6 Square groove 7 Spring 8 Spring washer 9 E ring 10, 10A, 10B Operation cover 11 Receiver 12 Rotation shaft insertion hole 13 Teeth 14 Slot 15 Guide part Reference Signs List 16 Pin portion 17 Mounting screw 18 Auxiliary lock 19 Base fitting 20 Rotating shaft for engaging body 22 Rotating shaft for interlocking gear 23 Rotating shaft insertion hole for interlocking gear 24 Mounting screw insertion hole 25 Notched portion 26 Rotating shaft connecting screw 27 Assembling frame 28 Glass surface 29 Inner shoji

Claims (5)

[Claims] 1. A crescent lock which is attached to the side of a mating frame of a sliding window and locks and unlocks a window, comprising: a pedestal mounted on the side of the mating frame; an arcuate engaging body; A disc-shaped interlocking gear having teeth and a slide member, wherein the engagement body and the interlocking gear are fixed to each other by a rotation shaft, and are rotatably held together with respect to the pedestal; A plurality of angular grooves are provided in the vertical linear direction, and the slide member is arranged so as to linearly move only in the vertical direction with respect to the pedestal, and the teeth of the interlocking gear and the angular grooves of the slide member are fitted to each other. A crescent tablet characterized by the above. 2. The linear motion of the slide member with respect to the pedestal is changed to the rotational motion of the interlock gear by fitting the teeth on the circumference of the interlock gear with the angular grooves provided in the vertical direction of the slide member. 2. The crescent tablet according to claim 1, wherein the lock is converted to obtain a rotational movement of the engagement body held so as to rotate together with the interlocking gear. 3. A base metal fitting which can be inserted into a hollow portion inside the mating frame, an engaging body is rotatably incorporated into the base metal fitting with a rotating shaft for the engaging body, and is arranged inside the mating frame. The gear is rotatably mounted on the pedestal with the rotating shaft for the interlocking gear, so that the teeth of the interlocking gear and the angular groove of the slide member are fitted to each other, and the slide member moves linearly only in the vertical direction with respect to the pedestal. The slide member is mounted on the pedestal, placed on the outer side of the mating frame, and attached with the base bracket and pedestal sandwiching the side of the mating frame from inside and outside, and the rotating shaft for the engaging body and the rotating shaft for the interlocking gear are connected to each other. 3. The method according to claim 1, wherein
The crescent tablet according to 1. 4. An apparatus according to claim 1, wherein at least one of the slide member and the operation cover attached to the slide member is formed in an L-shape so as to cover the front side of the frame. The described crescent tablet. 5. A U-shape in which at least one of the slide member and the operation cover attached to the slide member is covered with a U-shape so as to cover a surface opposite to a surface on which the crescent lock is mounted of the mating frame. The crescent tablet according to any one of claims 1 to 3, characterized in that: