JP4568559B2 - Masked sickle lock - Google Patents

Description

  The present invention relates to a faced sickle lock.

  Needless to say, imprinted sickle tablets are known. In general, the faced sickle lock is provided on the lock frame on the main shaft with the main shaft laterally installed on the lock frame attached to the indoor side of the door to the hinged door so that it can be rotated (opened / closed) from the indoor surface side. It has a structure in which a base portion of a sickle piece that enters and exits the window and separates the lock provided on the indoor side of the door frame is attached.

  In the case of the conventional structure, when a destructive force is applied to the hinged door from the outdoor side with a bar or the like (when trying to pry open), the destructive force is loaded in the opening direction of the hinged door, but with the breakage of the hinged door When the sickle lock (lock frame) is deformed (destructed), the lock piece is rotated around the main shaft, and the hinged door can be opened easily and the door can be opened easily. It was.

  Therefore, in order to cope with this destructive force (to obtain a crime prevention effect), various devices are added so that the lock piece does not easily rotate due to the load of the destructive force, and the structure is inevitably complicated. As a result, products must be offered at a relatively high price.

  The present invention has been devised in order to provide a sickle lock with a simple structure that can cope with destructive forces and is suitable for crime prevention.

The lock frame attached to the indoor side of the door side of the hinged door can be rotated indoors, the main shaft is set in the expected direction, and the window provided in the lock frame is opened and closed on the main shaft to the indoor side of the door frame. In the face-mounted sickle lock to which the base of the sickle piece for engaging and disengaging the provided lock holder is provided, the lock frame is provided with a center piece provided with the window and a pair of side pieces provided opposite to the center piece. And the sickle piece when locked to the lock holder on the other side piece that overlaps the opening door in a prospective direction via the one side piece that is fixed to the hinged door of the lock frame. A notch in which both upper and lower end edges overlap with each other in the prospective direction is provided in communication with the window, and the portion between the notches is formed as a tongue-shaped piece .

Effect

  When destructive force is applied to the hinged door from the outdoor side when the sickle piece is locked to the lock holder (when you try to pry it open), the external force in the opening direction against the hinged door is between the notches provided on one side piece of the lock frame. The side piece is deformed and bent before rotation of the main shaft to which the base of the sickle piece is attached and is easily deformed, preventing the sickle piece from turning, and the locking relation between the sickle piece and the lock It is possible to provide a face-attached sickle lock with excellent crime prevention performance.

  The drawings show an embodiment of the faced sickle lock according to the present invention, FIG. 1 is a partially cutaway front view in a locked state, FIG. 2 is a cross-sectional view of FIG. 1, and FIG. 4 is a perspective view of a broken state.

  In the figure, reference numeral 1 denotes a lock frame, and the lock frame 1 is composed of a U-shaped frame having a pair of side pieces 1b and 1b 'connected to both sides of a central piece 1a. A through hole 3 for the fixing screw 2 is provided on both sides in the longitudinal direction of 1b ', and a through hole 4 for inserting a tool such as a screwdriver that matches the through hole 3 is provided in the other side piece 1b. A pair of reinforcing rods 5 and 5 are constructed between the side pieces 1b and 1b 'on the inner side between the holes 3 and 4.

  One side piece 1b of the lock frame 1 has a main shaft 7 projecting from the outside (indoor side) of the side piece 1b protruding from the knob 6, and the tip of the main shaft 7 is inserted into the side piece 1b. , 1b ′, the base piece 8b of the sickle piece 8 interposed between the washer 9 and the washer 9 are sequentially passed through and fixed to the washer 9, and the sickle piece 8 is rotatably attached to the base piece 8b.

  The sickle piece 8 is constituted by connecting a substantially L-shaped locking piece 8a to the base piece 8b, and the base piece 8b is attached to the main shaft 7 and integrated with the main shaft 7 as described above. By the above operation, it is rotated along with the main shaft 7.

  The locking piece 8a of the sickle piece 8 enters and exits from the inside of the lock frame 1 through the side pieces 1b and 1b 'by the operation of the knob 6, and between the side pieces 1b and 1b'. A counter window 13 is provided by opening the central piece 1 a of the lock frame 1, and the locking piece 8 a at the tip of the sickle piece 8 protruding from the lock frame 1 through the window 13 is a receiving part of the lock holder 10. The hinged door B is locked by being locked to the piece 10a.

  At the time of locking, that is, when the sickle piece 8 (the locking piece 8a) is locked to the lock holder 10 (the receiving piece 10a), the sickle piece 8 is arranged almost horizontally as a whole. On the one side piece 1b of the lock frame 1 to which the sickle piece 8 is rotatably attached so as to overlap the upper and lower edges 8 ', 8' 'of the piece 8 base piece 8b in a prospective direction, Upper and lower cuts 11, 11 ′ whose open end communicates with the window 13 are provided, and a tongue-like piece 12 is formed between the cuts 11, 11 ′.

  The tongue-shaped piece 12 is provided on the side piece 1b (lock frame 1) so as to be bent and easily deformed, and the notches 11, 11 ′ constituting the tongue-shaped piece 12 are provided. The deeper the depth (length), the easier the bending deformation can be expected.

  The incisions 11 and 11 'are straight lines, but there is no problem even if they are curved. In short, the upper and lower end edges 8' and 8 'of the sickle piece 8 are notched. What is necessary is just to overlap the tongue-shaped piece 12 in the prospective direction between '.

  The lock receiver 10 is formed by bending the receiving portion piece 10a in a bent shape with respect to the attaching portion piece 10b at a central portion of one end along the longitudinal direction of the attaching portion piece 10b, and the free end of the receiving piece 10a. In the same manner as the lock frame 1, the reinforcing barb 14 is formed between the reinforcing part piece 10 c and the mounting part piece 10 b. It is constructed, and through holes 16 for fixing screws 15 are provided on both sides in the longitudinal direction of the attachment piece 10b.

  However, the lock frame 1 in which the sickle piece 8 is pivoted using the fixing screw 2 on the hinged door B side, and the lock holder 10 is fixed on the door frame A side using the fixing screw 15 are used. The main shaft 7 is rotated by the operation of the knob 6, and the locking portion 8a of the sickle piece 8 attached thereto is protruded from the lock frame 1 through the window 13 and locked to the receiving portion 10a of the lock receiver 10. The locked state can be obtained.

  In this state, when the breaking force by the bar or the like is applied from the outdoor side to the locking part of the sickle piece 8 and the lock 10 which are recognized as the locking part of the sliding door B in this state, If this is the case, since an external force is applied to the sickle piece 8 in the prospective direction (outdoor direction), the sickle piece 8 presses one side piece 1b of the lock frame 1, and the pressing force is the notch 11 , 11 ′, the portion (the side piece between the cuts 11, 11 ′) is bent and deformed because it is loaded on the side piece 1 b and the tongue-like piece 12. The piece 8 is also bent and deformed and protrudes in the indoor direction from between the side pieces 1b and 1b ′, that is, overlaps with the side piece 1b in the direction of finding, and the turning force of the sickle piece 8 around the main shaft 7 ( Against the external force), and the locked state of the sickle piece 8 and the lock holder 10 is maintained. Wherein it is that obtained interference state of the opening of the hinged door B to address the destructive power.

The partially missing front view of the locked state. FIG. 2 is a cross-sectional view of FIG. 1. The side view of a lock frame. The perspective view of the state destroyed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lock frame 1a Center part piece 1b, 1b 'Side piece 7 Main axis | shaft 8 Sickle piece 10 Lock receptacle 11, 11' Cut 13 Window A Door frame B Sliding door

Claims (1)

The lock frame attached to the indoor side of the door side of the hinged door can be rotated indoors, the main shaft is set in the expected direction, and the window provided in the lock frame is opened and closed on the main shaft to the indoor side of the door frame. In the face-mounted sickle lock to which the base of the sickle piece for engaging and disengaging the provided lock holder is provided, the lock frame is provided with a center piece provided with the window and a pair of side pieces provided opposite to the center piece. And the sickle piece when locked to the lock holder on the other side piece that overlaps the opening door in a prospective direction via the one side piece that is fixed to the hinged door of the lock frame. A scythe with a face, in which an upper and lower end edges of each are overlapped in a prospective direction so as to communicate with the window, and a space between the cuts is a tongue-shaped piece .

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