Supplementary tablets

Abstract

To provide an auxiliary lock which can open and close a door body while mounting all the time a door body restraint part with a locking mechanism on a mounting and fixing part.SOLUTION: The auxiliary lock comprises: a mounting and fixing part 1 fixed to a door body D of a hinged door; and a door body restraint part 2 provided in the mounting and fixing part 1 and provided with a locking mechanism 3 for preventing the door body D from being opened by coming into contact with a door frame F. The auxiliary lock is structured so that the mounting and fixing part 1 and the door body restraint part 2 are not separated from each other, and further comprises a movable part 4 that can be selectively positioned at a door body restraint position abutting on the door frame F and a door non-restraint position not abutting on the door frame F and is locked by the locking mechanism 3, in the door body restraint part 2.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an auxiliary lock used, for example, as a retrofittable auxiliary lock for opening doors of houses, condominiums, etc.

Background Art

[0002] In recent years, as a crime prevention measure, there have been increasing opportunities to install retrofittable auxiliary locks on opening doors of houses, condominiums, etc. As such an auxiliary lock, there is known an auxiliary lock including a mounting and fixing portion fixed to one side of a door body or a door frame of an opening door, and a door body restraining portion provided detachably on the mounting and fixing portion and having a locking mechanism that abuts against the other side of the door body or the door frame when attached, thereby preventing the door body from being opened (see, for example, Patent Documents 1 and 2).

[0003] By the way, the auxiliary locks described in Patent Documents 1 and 2 have the advantage that the auxiliary lock can be attached and removed without damaging the door body or the door frame of the opening door. However, when opening and closing the door body, it is necessary to remove the door body restraining portion having the locking mechanism from the mounting and fixing portion and store it in another place, which is troublesome for opening and closing the door body and there is a problem that the door body restraining portion is easily lost.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] In view of the problems of the above-mentioned auxiliary lock, while enjoying the advantage that the auxiliary lock can be attached and detached without damaging the door body or door frame of the hinged door, the present invention provides an auxiliary lock that can open and close the door body while the door body restraint part with a locking mechanism is attached to the attachment fixing part. The purpose is to achieve this.

Means for Solving the Problems

[0006] To achieve the above object, the auxiliary lock of the present invention includes an attachment fixing part fixed to one side of the door body or door frame of the hinged door, and a door body restraint part provided on the attachment fixing part and having a locking mechanism that abuts against the other side of the door body or door frame to prevent the door body from being opened. The auxiliary lock is configured such that the attachment fixing part and the door body restraint part are not separated, and the door body restraint part can be selectively positioned at a door body restraint position where it abuts against the other side of the door body or door frame and a door body non-restraint position where it does not abut, and is characterized by including a movable part that is locked by the locking mechanism.

[0007] In this case, the movable part can be selectively positioned at the door body restraint position and the door body non-restraint position by a rotational movement or a sliding movement.

Effects of the Invention

[0008] According to the auxiliary lock of the present invention, the attachment fixing part and the door body restraint part are configured not to be separated, and the door body restraint part can be selectively positioned at a door body restraint position where it abuts against the other side of the door body or door frame and a door body non-restraint position where it does not abut, and by including a movable part that is locked by the locking mechanism, the door body can be opened and closed without much effort, and the problem of losing the door body restraint part can be solved.

Brief Description of the Drawings

[0009]

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Modes for Carrying Out the Invention

[0010] Hereinafter, embodiments of the auxiliary tablet of the present invention will be described with reference to the drawings.

[0011] Figures 1 to 6 show a first embodiment of the auxiliary lock of the present invention. This auxiliary lock is an auxiliary lock for locking the door body D of an inward-opening door of a building such as a house or an apartment. It includes a mounting and fixing part 1 fixed to the door body D of the opening door, and a locking mechanism 3 provided on the mounting and fixing part 1 and configured to prevent the door body D from being opened by contacting the door frame F. The door body restraint part 2 is provided, and the mounting and fixing part 1 and the door body restraint part 2 are configured not to separate. The door body restraint part 2 is selectively positioned at a door body restraint position in contact with the door frame F and a door body non-restraint position not in contact with the door frame F, and is provided with a movable part 4 locked by the locking mechanism 3. Here, "configured so that the mounting and fixing part 1 and the door body restraint part 2 do not separate" means that in normal use, the mounting and fixing part 1 and the door body restraint part 2 are integrally assembled so as not to separate (the same applies to the following embodiments).

[0012] In the auxiliary lock of this first embodiment, the movable part 4 is rotated by a rotation operation. Specifically, it is rotated around an axis (the axis of the locking mechanism 3) perpendicular to the door surface of the door body D (the operation angle of the rotation operation can be arbitrarily set. In this embodiment, it is 90°). Thus, it can be selectively positioned at the door body restraint position (Figs. 1(a1)-(a2)) and the door body non-restraint position (Figs. 1(c1)-(c2)).

[0013] The mounting and fixing part 1 is provided with a fixing member 5 on one end side 1a and the door body restraint part 2 on the other end side 1c with a crank part 1b formed in the middle for sandwiching the door body D.

[0014] The fixing member 5 is composed of a screw member 51, a pressing plate 52, a push nut 53, and a rubber plate 54. The screw member 51 is screwed onto one end side 1a of the mounting and fixing part 1, and by tightening the screw member 51, the pressing plate 52 and the crank part 1b of the mounting and fixing part 1 sandwich the door body D to fix the mounting and fixing part 1 to the door body D.

[0015] The door body restraint part 2 is provided with a locking mechanism 3, and includes a main body part 21 integrally formed on the other end side 1c of the mounting and fixing part 1, a cylinder case 22 integrally formed with a movable part 4 and mounted on the main body part 21, a cylinder case cover 23, a cylinder 24 operated by a key K, and a cylinder fixing screw 25. In addition to the locking mechanism 3 operated by the key K, any locking mechanism (not shown), such as one having a function of preventing unauthorized unlocking such as a numbered lock, or one integrally provided with a thumb turn (an operating part for opening and closing the lock), can be adopted.

[0016] The movable part 4 is configured to rotate through the cylinder case 22 by rotating the cylinder 24.

[0017] The movable part 4 is provided with an abutting body 6. The abutting body 6 is composed of a main body part 61 formed with a female screw, a male screw member 62, and a cap 63, and the protruding dimension from the movable part 4 can be adjusted by rotating the main body part 61. Note that the screws of the main body part 61 formed with a female screw and the male screw member 62 can be reversed, that is, it can also be composed of a main body part formed with a male screw and a female screw member. Thereby, various door bodies D and door frames F with different specifications can be easily accommodated without rattling or the like. Furthermore, this abutting body 6 is provided with a spring member 64 disposed at a position where it contacts the outer peripheral surface of the main body part 61 as a buffer mechanism. Thereby, it is possible to prevent the door body D from rattling or the like due to an external force such as wind. Note that the buffer mechanism can also be composed of, for example, a spring member (not shown) disposed in the axial direction of the main body part 61 of the abutting body 6.

[0018] ​According to this auxiliary lock, the attachment and fixing part 1 and the door body restraint part 2 are configured not to separate, and the door body restraint part 2 can be selectively positioned at a door body restraint position where it abuts against the door frame F and a door body non-restraint position where it does not abut. By providing a movable part 4 that is locked by the locking mechanism 3, the door body D can be opened and closed without hassle while the door body restraint part 2 equipped with the locking mechanism 3 is attached to the attachment and fixing part 1, and the problem of losing the door body restraint part 2 can be solved.

[0019] Figs. 7 to 9 show a modified example of the first embodiment of the auxiliary lock of the present invention. In the auxiliary lock of this modified example of the first embodiment, the movable part 4 is configured to be selectively positioned at a door body restraint position (Figs. 7(a1) to (a2)) and a door body non-restraint position (Figs. 7(c1) to (c2)) by a rotation operation, specifically, a rotation operation about an axis (the axis of the locking mechanism 3) perpendicular to the door surface of the door body D (the operation angle of the rotation operation can be arbitrarily set. In this embodiment, it is 90°).

[0020] The fixing member 5 is composed of a male screw member 55 that screws into a female screw part 11 formed on one end side 1a of the attachment and fixing part 1. By rotating the male screw member 55 through a through hole 12 formed on the other end side 1c of the attachment and fixing part 1 with a driver (not shown), the male screw member 55 and the crank part 1b of the attachment and fixing part 1 are adjusted to sandwich the door body D, and the attachment and fixing part 1 is fixed to the door body D. This can prevent the male screw member 55 from being illegally operated. Here, in order to reduce the resistance when the male screw member 55 and the crank part 1b of the attachment and fixing part 1 sandwich the door body D, the door body restraint part 2 is attached to the other end side 1c of the attachment and fixing part 1 via a hinge 13, and the door body restraint part 2 is fixed to the door surface of the door body D via a magnet plate 26 (or an adhesive double-sided sheet, etc.).

[0021] The male screw member 55 can be composed of a single member, or as shown in FIGS. 9(b1) to (b3), it can be composed of a screw body 55a, an operation head 55b, and a spring 55c. Thereby, when the door body D is sandwiched between the male screw member 55 and the crank portion 1b of the attachment fixing portion 1, the resistance can be made smaller and the clamping force can be increased.

[0022] The other configurations and operations of the auxiliary lock of this modification are the same as those of the auxiliary lock of the first embodiment.

[0023] FIG. 10 shows a second embodiment of the auxiliary lock of the present invention. In the auxiliary lock of this second embodiment, the movable portion 4 provided in the door body restraint portion 2 is rotated by a rotation operation. Specifically, it rotates about a vertical axis 41 parallel to the door surface of the door body D (the operation angle of the rotation operation can be arbitrarily set. In this embodiment, it is 90°). By doing so, it can be selectively positioned at a door body restraint position (FIGS. 10(a1) to (a2)) and a door body non-restraint position (FIGS. 10(c1) to (c2)).

[0024] The door body restraint portion 2 is provided with a locking mechanism 3, and includes a main body portion 21 integrally formed on the other end side 1c of the attachment fixing portion 1, a ball moving cam portion 31 attached to the main body portion 21, a ball 32, and a movable portion 4 formed with recesses 42a and 42b into which the ball 32 selectively enters.

[0025] The movable portion 4 can be rotated by operating the cylinder 24 with the key K to release the fitting state of the ball 32 with respect to the recesses 42a and 42b.

[0026] The other configurations and operations of the auxiliary lock of this second embodiment are the same as those of the auxiliary lock of the first embodiment.

[0027] FIGS. 11 to 15 show a third embodiment of the auxiliary lock of the present invention. In the auxiliary lock of this third embodiment, the movable part 4 provided in the door body restraint part 2 can be selectively positioned at the door body restraint position (Figs. 11(a1)-(a2)) and the door body non-restraint position (Figs. 11(c1)-(c2)) by a sliding operation, specifically, by sliding in a direction parallel to the door surface of the door body D.

[0028] The door body restraint part 2 is provided with a locking mechanism 3, which is integrally formed on the other end side 1c of the mounting and fixing part 1, and includes a main body part 21 that slidably supports the movable part 4 and a cylinder 24 that is fitted to the main body part 21 and operated by a key K.

[0029] The movable part 4 has a rib 43 that fits into a groove 21a formed in the main body part 21 of the door body restraint part 2 and a groove 44 into which a pin 27 formed on the cylinder 24 is inserted. By rotating the cylinder 24, the movable part 4 slides along the groove 44 via the pin 27 that moves along the groove 44.

[0030] An abutting body 6 is arranged on the movable part 4. The abutting body 6 consists of a male screw member 65 with a hexagonal hole that screws into a female screw part 45 formed on the movable part 4 and a cap 66. By rotating the male screw member 65, the protruding dimension from the movable part 4 can be adjusted. Thereby, various door bodies D and door frames F with different specifications can be easily accommodated without rattling or the like.

[0031] The other configurations and operations of the auxiliary lock of this third embodiment are the same as those of the auxiliary lock of the first embodiment.

[0032] Figs. 16 to 24 show a modified example of the third embodiment of the auxiliary lock of the present invention. In the auxiliary lock of this modified example of the third embodiment, the movable part 4 provided in the door body restraint part 2 can be selectively positioned at the door body restraint position (Fig. 16(a)) and the door body non-restraint position (Fig. 16(c)) by a sliding operation, specifically, by sliding in a direction parallel to the door surface of the door body D.

[0033] The door body restraint part 2 is provided with a locking mechanism 3, integrally formed at the other end side 1c of the mounting and fixing part 1, and includes a main body part 21 in the shape of a guide rail that slidably supports the movable part 4, a cylinder case 22 integrally formed with the movable part 4 and mounted on the main body part 21, a cylinder case cover 23, a cylinder 24 operated by a key K, a ball movement cam part 31, a ball 32, a locking rail 28 formed with notches 28a, 28b into which the ball 32 selectively enters, and stopper pieces 29a, 29b that regulate the sliding range of the movable part 4.

[0034] Here, the number of notches into which the ball 32 selectively enters can also be three or more, whereby the door body restraint positions of the movable part 4 can be set at a plurality of positions. Also, instead of the combination of the ball 32 and the notches 28a, 28b, a combination of a locking claw and a serrated locking part (not shown) can be adopted, whereby the door body restraint positions of the movable part 4 can be set at a plurality of positions. As a result, various door bodies D and door frames F with different specifications can be easily corresponded to without rattling or the like.

[0035] The movable part 4 can be moved in a sliding manner through the cylinder case 22 by operating the cylinder 24 with the key K to change from a locked state (Figs. 21(a1) to (a3)) in which the ball 32 is fitted into the notches 28a, 28b to a state in which the locked state is released (Figs. 21(b1) to (b3)).

[0036] The other configurations and operations of the auxiliary lock of this modification are the same as those of the auxiliary lock of the first embodiment.

[0037] Fig. 25 shows a fourth embodiment of the auxiliary lock of the present invention. This auxiliary lock is an auxiliary lock for locking the door body D of an outward-opening door of a residential or apartment building. It includes a mounting and fixing part 1 fixed to the door frame F of the opening door, and a door body restraint part 2 provided on the mounting and fixing part 1 and having a locking mechanism 3 that prevents the door body D from being opened by coming into contact with the door body D. The mounting and fixing part 1 and the door body restraint part 2 are configured not to separate, and the door body restraint part 2 is provided with a movable part 4 that can be selectively positioned at a door body restraint position in contact with the door body D and a door body non-restraint position not in contact with the door body D, and is locked by the locking mechanism 3.

[0038] In this auxiliary lock of the fourth embodiment, the movable part 4 can be selectively positioned at the door body restraint position (Fig. 25(a)) and the door body non-restraint position (Fig. 25(b)) by a rotating operation, specifically, by rotating around an axis (the axis of the locking mechanism 3) perpendicular to the door surface of the door body D (the operating angle of the rotating operation can be arbitrarily set. In this embodiment, it is 90°).

[0039] The mounting and fixing part 1 is provided with a fixing member 5 on one end side 1a and the door body restraint part 2 on the other end side 1c, with a crank part 1b for sandwiching the intermediate door frame F in between.

[0040] The fixing member 5 consists of a screw member 51 and a pressing plate 52. The screw member 51 is rotatably arranged from one end side 1a to the crank part 1b of the mounting and fixing part 1. By rotating the screw member 51, the door frame F is sandwiched between the pressing plate 52 and the crank part 1b of the mounting and fixing part 1 to fix the mounting and fixing part 1 to the door body D.

[0041] This auxiliary lock is configured so that the mounting and fixing part 1 and the door body restraining part 2 do not separate, and can be selectively positioned between a door body restraining position where it abuts against the door body D, and a door body non-restraining position where it does not abut.By providing a movable part 4 that is locked by the locking mechanism 3, the door body D can be opened and closed without any effort while the door body restraining part 2 equipped with the locking mechanism 3 is left attached to the mounting and fixing part 1, eliminating the problem of losing the door body restraining part 2.

[0042] Other configurations and operations of the auxiliary lock of the fourth embodiment are similar to those of the auxiliary lock of the first embodiment. Incidentally, the movable portion 4 may employ the auxiliary lock mechanism of the second and third embodiments (including their modifications).

[0043] The above describes the auxiliary lock of the present invention based on its embodiments, but the present invention is not limited to the configurations described in the above embodiments, and the configuration can be changed as appropriate within the scope of the spirit of the invention, such as by appropriately combining the configurations described in each embodiment. [Industrial Applicability]

[0044] The auxiliary lock of the present invention can be attached and removed without damaging the door body or door frame of the hinged door. Since this is possible, and the door body can be opened and closed while the door body restraint part equipped with the locking mechanism is attached to the mounting and fixing part, it can be widely used as a mechanism for locking swing doors, whether they are existing or new. [Explanation of symbols]

[0045] D Door F door frame K key 1 Mounting Fixture 1a One end side 1b Crank section 1c Other end side 11 Female thread 12 Through hole 13 Hinge 2 Door body restraint section 21 Body part 22 Cylinder case 23 Cylinder case cover 24 Cylinder 25 Cylinder fixing screw 26 Magnet plate 27 Pin 28 Locking rail 28a Notch 28b Notch 29a Stopper piece 29b Stopper piece 3 Locking mechanism 31 Ball moving cam part 32 Ball 4 Movable part 41 Shaft 42a Concave part 42b Concave part 43 Rib 44 Groove 45 Female screw part 5 Fixing member 51 Screw member 52 Pressing plate 53 Push nut 54 Rubber plate 55 Male screw member 55a Screw body 55b Operation head 55c Spring 6 Contact body 61 Body part 62 Male screw member 63 Cap 64 Spring member 65 Male screw member 66 Cap

Claims

【Claim 1】 An auxiliary lock comprising a mounting and fixing part fixed to one side of a door leaf or a door frame of a hinged door, and a door body restraint part provided on the mounting and fixing part and having a locking mechanism that prevents the door body from being opened by abutting against the other side of the door body or the door frame, wherein the mounting and fixing part and the door body restraint part are configured not to separate from each other, and the door body restraint part is selectively positionable, by a pivoting operation, at a door body restraint position where it abuts against the other side of the door body or the door frame and a door body non-restraint position where it does not abut, and has a movable part that is locked by a locking mechanism, and the movable part is pivoted about a cylinder of the locking mechanism operated by a key via a cylinder case integrally forming the movable part.

Images