JPH0632645U - Door lock - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent a thief from breaking into a house even if he breaks the window glass from the outside, so that the thief can open another door to enter and secure an escape route. To provide a safe door lock that cannot be opened even when trying to open the inner door or the outer door from the inside. [Structure] The summing portion 1 for the indoor sliding door and the summing portion 2 for the outdoor sliding door are shorter than the depth of a locking hole 3 formed in series from the indoor side, and the locking hole 3 has an indoor side. A threaded locking rod 10 which is screwed in from the inside to engage the female screw hole of the assembling portion 2 of the outdoor sliding door, and the screw locking rod 10 which is inserted into the locking hole 3 from the indoor side. An operating piece 20 that comes into contact with the end portion, and the other end portion of the screw lock bar and the engaging portions 14 and 24 having concave and convex portions that mesh with the abutting portion of the operating piece that comes into contact therewith; The magnet pieces 15 and 25 are provided to bring the engaging portions into a meshed state by the magnetic attraction force.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door lock for a sliding door including an indoor sliding door (also referred to as an inner door) and an outdoor sliding door (also referred to as an outer door).

[0002]

[Prior art]

 A male screw shaft in a direction orthogonal to the rail is provided in the lower horizontal frame of the outer door so as to rotate at a fixed position, and the male screw shaft is screwed to the outside of the male screw shaft by turning the male screw shaft in one direction with a key. A sliding door locking device that moves the female screw cylinder toward the room and inserts the tip of the cylinder into the opening provided in the lower horizontal frame of the inner door to prevent the inner and outer doors from opening is disclosed in JP-B-41-15988. No.

[0003]

[Problems to be solved by the device]

 The above-mentioned conventional device has a very complicated structure to support the male screw shaft so as to rotate in a fixed position inside the lower horizontal frame of the outer door, and to prevent the female screw cylinder from co-rotating with the rotation of the male screw shaft, the female screw The outer shape of the cylinder must be square, and the lower horizontal frame of the inner door and the lower horizontal frame of the outer door must be provided with corresponding square holes. Therefore, it takes a great deal of work to assemble the male screw shaft into the lower horizontal frame of the inner door or to open a square hole in the lower horizontal frame, resulting in a high cost. Furthermore, when the male screw shaft in the outer door is turned, the female screw cylinder only projects into the square hole of the inner door and pulls the inner door and does not tighten it. Therefore, there is concern about whether it is completely locked.

[0004]

[Means for Solving the Problems]

 The present invention was developed in order to solve the above-mentioned problems, and it is more than the depth of the locking holes formed in a series from the indoor side in the fitting portion of the inner door and the fitting portion of the outer door. A screw-type locking rod that has a short length and is screwed into the locking hole from the inside of the room so that the tip of the locking rod engages with the fitting part of the outdoor sliding door, and the screw is inserted into the locking hole from the inside of the room. An operating piece that comes into contact with the other end of the locking rod, and an engaging portion that has concave and convex portions that mesh with the other end of the screw rod and the abutting portion of the operating piece that comes into contact with the operating rod. It is characterized in that a magnet is provided to bring the both engaging portions into a meshed state.

[0005]

【Example】

 In the illustrated embodiment, 10 is a screw-type locking rod, and 20 is an operating piece, which are formed of an appropriate material such as wood, plastic, and aluminum. In order to attach this lock, a series of locking holes 3 are formed in the interior door combination portion 1 that overlaps the inside and outside when the door is closed, and the exterior door combination portion 2 that is orthogonal to the moving direction of the door. The locking hole 3 has a stepped hole 4 having a step 4'having a large diameter on the indoor side and a small diameter on the outdoor side, which is provided in the summing portion 1 of the inner door, and a step provided in the summing portion 2 of the outer door. The small diameter portion 4a of the hole 4 and the female screw hole 5 having substantially the same diameter. In the case of an aluminum sash, the assembling parts 2 and 3 of the sliding door are hollow, so that the tubular piece 6 having the stepped hole 4 and the tubular piece 7 having the female screw hole 5 are made of plastic, stainless steel, or iron (unichrome steel). (Plating), aluminum casting, etc., and as shown in the figure, penetrate the tubular piece 6 through the hole formed in the assembling part 1 of the inner door and attach it by caulking. The tubular piece 7 is the outer door assembling. It may be attached by caulking in the hole formed in the side wall of the room of part 2. A pop nut (trade name of Pop Rivet Co., Ltd.) can be used as the cylindrical piece having the female screw hole on the inner circumference.

The screw-type lock rod 10 has a diameter slightly smaller than the large-diameter portion 4b of the stepped hole 4 in the summing portion of the inner door, and its length is slightly shorter than the large-diameter portion. 11, a small-diameter portion 4a of a stepped hole that protrudes concentrically from the head portion, and a shaft portion 12 that passes through a series of female screw holes 5 in the assembly portion of the outer door. A male screw 13 is provided to be threadably engaged with a female screw on the inner circumference of the hole 5. The length of the locking rod 10 is shorter than the length of the locking hole 3, that is, the length L from the opening surface of the large diameter portion 4b of the stepped hole 4 to the bottom of the female screw hole 5 and the length of the head portion 11. When the inner and outer doors are closed so that the inner and outer doors cannot be opened, the inner side end of the head portion 11 has a large diameter portion 4b of the stepped hole. Pull in.

The operation piece 20 prevents the door from opening the lock rod 10 which is retracted from inside the lock hole 3 into the large diameter portion 4b of the stepped hole 4 in this embodiment. It is used to rotate the door in a forward or reverse direction so that it can be closed or opened. It fits inside the large diameter part 4b of the stepped hole and fits outside the head 11 of the locking rod at the tip. The main body 22 is provided with a coupling cylinder portion 21, and the other end integrally has a main body 22 that goes into the room from the opening surface of the large diameter portion of the stepped hole, and a knob 23 for turning that is connected to the other end of the main body. The end of the head 11 of the locking rod 10 that abuts when the piece 20 is inserted from the room into the inside of the locking hole 3, the tip of the main body 22 of the operation piece 20, and in this case, the fitting tubular portion 21. Concavo-convex engaging portions 14 and 24 that mesh with each other are provided in the back.

The concave and convex engaging portions 14 and 24 are symbols and characters such as + and −, patterns and the like, and can rotate the operating piece 20 to transmit forward and reverse rotational torque to the lock rod 10. As shown in FIG. 2, the engaging portion 14 has a 1/4 circular arc fan-shaped concave and a 3/4 circular arc convex, and the engaging portion 24 has a 1/4 circular arc fan-shaped convex. It is shown as having a / 4 arc recess. Then, in order to engage the engaging portion 24 of the operation piece to be inserted into the locking hole with respect to the engaging portion 14 in the retracted position inside the locking hole 3 accurately and quickly, both engaging portions 14 , 24 are magnetically attracted to the meshing position, and the magnet piece 25 is provided eccentrically at the end of the head 11 of the locking rod and the back of the fitting cylinder 21 of the operating piece. Good.

As a result, when the head of the locking rod is inserted into the fitting cylinder of the operating piece by the attraction force of both magnet pieces 15 and 25, the engaging portions 14 and 24 are engaged with each other, and the locking rod and the operating piece are separated from each other. Become one. To lock, insert the lock rod integrated with the operating piece from the shaft portion 12 into the large diameter portion of the stepped hole 4 in the assembly portion of the inner door, and operate as shown by the broken line in FIG. While pushing the piece, the male screw 13 on the shaft 12 of the lock rod is screwed into the female screw hole 5 on the assembly portion of the outer door. Even if the tip end surface of the head portion 11 comes into contact with the step 4'of the stepped hole by this screwing, if the operation piece is continuously rotated, then the outer door is pulled toward the inner door and tightened. Thus, the outer door is pulled close to the inner door and tightened, and when the operation piece cannot be rotated, the operation piece 20 is pulled out from the large diameter portion 4b and stored in a predetermined place.

As a result, the lock rod 10 cannot be seen through from the outside, and even if the lock glass 10 is breached by the window glass and the hand is touched and the touching portion of the inner door is touched, the lock rod 10 is only touched by the opening portion of the lock hole, and the inside of the lock rod 10 is locked. You can't open the door because you can't touch the retracted lock. Further, even if it is understood that the lock rod is pulled into the large diameter portion of the locking hole, if the operating piece having the engaging portion 24 corresponding to the engaging portion 14 is not used, It is safe because it cannot be unlocked by turning. For this reason, it is preferable that the engaging portions 14 and 24 that make a pair have a variety of various patterns, for example, be changed for each house. Of course, for unlocking by the housekeeper, the main body of the operation piece is inserted into the large diameter portion 4b of the stepped hole, the fitting cylinder portion 21 at the tip is put on the head 11 of the lock rod, and the magnet pieces 15 and 25 are attracted. The engaging portion 24 is meshed with the engaging portion 14 by force, the lock rod 10 is turned in the opposite direction by the operation piece, the male screw 13 of the shaft portion is removed from the female screw hole 6, and when disengaged, it is integrated by the attractive force of the magnet. The operating piece 20 is pulled out from the large diameter portion of the locking hole together with the locking rod 10 and stored in a predetermined place.

[0011]

[Effect of device]

 According to the present invention, it is possible to provide a safe and simple door lock, in which a person cannot open the door except to unlock it by using the operation piece 20. That is, even if the glass of the inner door or the outer door is broken, the thief cannot enter the house, and the thief opens the other door to enter and opens the inner and outer doors to secure an escape route. If you try to open it from the inside, you cannot open it. Further, since the engaging portion of the operating piece and the engaging portion on the head of the locking rod are kept in mesh with each other by the attractive force of the magnet piece, the operating piece does not have a locking hole when unlocked. Since the engaging parts automatically engage each other when inserted into the crab, it does not require labor to engage them, and when not in use, the operating piece and the locking rod can be handled as one unit, so one of them can be lost. There is no. The outer door is pulled toward the inner door and locked by turning the operation piece until it cannot be turned, so that it can be confirmed that the door is locked.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of a door lock of the present invention in a locked state.

FIG. 2 is a perspective view of a lock rod and an operation piece of the door lock of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Assembly part of indoor sliding door 2 Assembly part of outdoor sliding door 3 Locking hole 10 Lock bar 11 Head 12 Shaft 13 Male screw 14 Uneven engaging part 20 Operation piece 21 Fitting cylinder part 22 Main body 23 Picking 24 Unevenness Engagement part

Claims (1)

[Scope of utility model registration request] 1. The depth is shorter than the depth of a locking hole formed in a series from the indoor side in the assembling portion of the indoor sliding door and the assembling portion of the outdoor sliding door, and is screwed into the locking hole from the indoor side. And a screw-type locking rod whose front end engages with the summing portion of the outdoor sliding door, and an operation piece that is inserted into the locking hole from the inside of the chamber and comes into contact with the other end of the locking rod. The other end of the screw-type locking rod and the engaging portion of the operating piece that abuts on the engaging engaging portion of the concave and convex portions, and the magnet for engaging both engaging portions are provided. A characteristic door lock.