JP2005090158A - Handle lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive and high antitheft handle lock. <P>SOLUTION: A handle body 2 provided with a handle 1 at one end thereof is contained in a handle case 3 to be drawable, the drawing operation of the handle body 2 is prohibited or allowed by locking or unlocking of the cylinder lock 4 housed in the handle body 2. A rigid and excellently heat resistant hard plates 5 are screwed at a plurality of positions at a place separated from the rear face and fixedly laminated. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a handle lock.

      As a handle lock for locking a door or the like of a vending machine, one described in Patent Document 1 is known. In this conventional example, the handle lock is formed by accommodating a handle body having a handle portion in a handle case so as to be able to be pulled out.

When the handle body is locked, the handle portion of the handle body is housed in a handle fitting recess recessed in the handle case so that the handle body cannot be operated. When the door is opened, the handle body is first attached to the handle body. After the cylinder lock is unlocked, the handle body is pulled out, and then the handle body is rotated with the handle portion of the handle body as a handle.
JP-A-8-260773

  However, the conventional example described above has the following drawbacks. First, in the locked state, the handle body can be pulled out by melting the handle body with a burner or the like so that the handle body can be pulled out.

  To solve this problem, it is possible to cover the surface of the handle part of the handle body with a thin metal plate with a high melting point and fix it by caulking at the periphery. Since it is not impossible to melt a part of the handle portion of the part and then peel off the thin metal plate, it is impossible to completely prevent the destruction operation with a burner or the like.

  Furthermore, as another method for completely preventing an attack such as a burner, the handle body or the cylinder lock can be formed of a material having a high melting point, but such a material is generally expensive. Processing is also difficult, leading to increased product costs.

  The present invention has been made to eliminate the above drawbacks, and an object of the present invention is to provide a handle lock that is inexpensive and has high antitheft performance.

According to the present invention, the object is
A handle body 2 having a handle 1 at one end is accommodated in a handle case 3 so that it can be pulled out, and a pulling operation of the handle body 2 is prohibited or permitted by locking and unlocking of a cylinder lock 4 accommodated in the handle body 2. A handle lock,
This is achieved by providing a handle lock on the surface of the handle portion 1 that has a rigid plate 5 that has high rigidity and excellent heat resistance and is laminated and fixed by being screwed at a plurality of positions at a distance from the back surface. .

  The handle lock is configured to inhibit the rotation operation to the handle body 2 by fitting the handle portion 1 formed at one end of the handle body 2 into the handle fitting recess 6 on the surface of the handle case 3. . The removal of the handle portion 1 from the handle fitting recess 6, that is, the pulling-out operation of the handle body 2 is regulated by the locking / unlocking operation by the cylinder lock 4 attached to the handle body 2.

  As one of the unauthorized unlocking operations for the handle lock, the handle body 2 holding the cylinder lock 4 is melted by using a burner or the like to drop the cylinder lock 4 and the handle lock 2 is locked by the cylinder lock 4. Some of them lose the holding force to the position, and the hard plate 5 is laminated and fixed on the surface of the handle main body 2 in order to improve the resistance against the destruction mode.

The hard plate 5 is fixed by screwing from the back side of the base body of the handle body 2 formed of die cast alloy or the like.
The hard plate 5 is formed of a material having heat resistance to such an extent that it is not easily melted or softened by heating of a burner or the like, preferably a material having high hardness so that a drilling operation by a drill or the like can be disabled. The Further, the hard plate 5 is formed to have an appropriate thickness so as to have strength and rigidity that do not easily cause deformation and breakage due to bending.

  Therefore, in the present invention, the surface of the handle main body 2 is covered with the hard plate 5 over the entire surface to improve the resistance to breakage from the outside. An alloy or the like can be used, and cost reduction can be achieved.

  Moreover, since the hard plate 5 has rigidity, even if the corresponding portion of the base body is melted by intensively heating one portion of the hard plate 5, it cannot be pulled or turned up from the portion. Therefore, the resistance to attacks by a burner or the like is dramatically improved.

  Furthermore, since the hard plate 5 having a relatively large area and a large heat capacity is screwed at a plurality of spaced locations so as to cover the entire surface of the handle portion 1, only one screwed location is concentrated. Even when heated to melt the substrate, the other screwing portions remain fixed. As a result, in order to remove the hard plate 5, it is necessary to melt all screwing points at the same time, and it is virtually impossible to remove the hard plate 5 using a burner or the like.

  In addition, since the hard plate 5 has rigidity and is screwed to the base, even if the base of the handle portion 1 is melted almost entirely by the heating of the hard plate 5, the hard plate 5 is broken. When the handle portion 1 is operated, the substrate is solidified again. The screw 7 for screwing functions as a core material at the time of re-solidification, promotes the formation of a block-shaped re-solidified portion connecting the hard plate 5 and the lower portion from the handle portion 1, and in the re-solidified state, In order to guarantee the connection between the lower portion and the hard plate 5, the hard plate 5 is held in the handle fitting recess 6 on the handle case 3 side. Since the hard plate 5 has rigidity and has an appropriate plate thickness, even if the hard plate 5 slightly protrudes from the handle fitting recess 6 and can be used as a handle, the handle fitting recess In the state where the fitting portion with the inside of 6 remains, since it can exhibit sufficient resistance against the rotational operation force applied to the handle body 2, it also exhibits sufficient resistance against the destruction operation after the base melts To do.

  Further, since the hard plate 5 is screwed to the base body, the handle lock 2 is unlocked and the handle main body 2 is detached from the handle case 3 even if the hard plate 5 is damaged by an attack on the hard plate 5. Thus, the hard plate 5 can be easily replaced.

  According to the present invention, a handle lock that is inexpensive and has high antitheft performance can be obtained.

  As shown in FIGS. 1 and 2, the handle lock includes a handle case 3 and a handle body 2 that is inserted into the handle case 3 so as to be drawable. The handle case 3 is made of, for example, a zinc die-cast alloy or the like and integrally formed with a handle accommodating portion 3b on the back surface of the face plate portion 3a, and accommodates a handle portion 1 of the handle body 2 described later on the surface of the face plate portion 3a. A handle fitting recess 6 is provided.

  On the other hand, the handle body 2 includes a handle portion 1 that can be fitted into the handle fitting recess 6 of the handle case 3 at the front end of a cylindrical lock holding portion 2a having a cylinder lock receiving recess 8 formed in the center. . The lock holding portion 2a is inserted into a sleeve 9 that is rotatably attached to the handle accommodating portion 3b of the handle case 3 so as not to idle and to move forward and backward. As shown in FIG. 2 (c), a compression spring 10 is mounted between the sleeve 9 and the handle main body 2, and urges the handle main body 2 in the protruding direction from the sleeve 9. A fixing wall of a locking plate (not shown) is formed on the rear surface side end surface 9a of the sleeve 9, and the locking plate is engaged with the striker on the vending machine housing side by the sleeve 9 that rotates following the rotation operation to the handle portion 1. Remove and transition between locked and unlocked states.

  In addition, a cylinder lock 4 into which a rotor 4b that can be rotated relative to the cylinder case 4a only by a key plate having a genuine unlocking code is inserted into the lock holding portion 2a. The head of the rotor 4b is covered with a hard material that is hard and has excellent heat resistance.

  A cam portion 4c is formed at the end of the rotor 4b, and the detecting portion 11a of the lock plate 11 urged in the protruding direction by the spring 12 is inserted. As shown in FIG. 2A, the lock plate 11 is inserted into the fitting groove 3c formed in the handle accommodating portion 3b, and the depth direction of the fitting groove 3c (perpendicular to the paper surface). The handle body 2 is brought into contact with the wall surface to regulate the protrusion of the handle body 2 from the handle case 3 (locked state), and the rotor 4b is rotated with respect to the cylinder case 4a as shown in FIG. Retreat from the groove 3c and allow the handle body 2 to pop out (unlocked state).

  Therefore, in this embodiment, in the locked state shown in FIG. 1, the lock plate 11 engages with the fitting groove 3c of the handle case 3 to prohibit the movement of the handle body 2 in the protruding direction. In the main body 2, the handle portion 1 is fitted in the handle fitting recess 6 of the handle case 3, so that a rotational operation force cannot be applied to the handle main body 2. When the rotor 4b is rotated by the key plate from this state and the lock plate 11 is detached from the fitting groove 3c, the handle body 2 jumps forward by the restoring force of the compression spring 10 and shifts to the unlocked state (FIG. 2 (c)). In this state, the handle portion 1 of the handle main body 2 can be operated. When a rotational operation force is applied to the handle main body 2, the sleeve 9 that cannot rotate freely with respect to the handle main body 2 also rotates. The lock between the locking plate formed at the terminal end and the striker is released.

  FIG. 3 shows a fixed state of the cylinder lock 4. First, in order to fix the cylinder lock 4, a male screw 4d and a pair of parallel flat portions 4e are formed on the outer periphery of the cylinder case 4a, and the spacer nut 13 is screwed into the male screw 4d.

  The cylinder lock 4 is inserted into the cylinder lock housing recess 8 of the handle body 2 with the spacer nut 13 screwed therein, and is prevented from being detached and prevented from rotating by the retaining metal fitting 14. The retaining bracket 14 is made of, for example, a hard metal material such as hardened steel so as not to be easily deformed. As shown in FIG. 3B, the two parallel leg pieces 14a, 14a is provided and is formed in a U shape in plan view.

  The retaining metal fitting 14 has a screw insertion hole 14c formed in a connecting piece 14b between the leg pieces 14a after the leg pieces 14a are inserted into the leg insertion holes 2b formed in the side wall of the lock holding portion 2a of the handle body 2. Screws 15 are inserted into the handle body 2 and fixed. In a state where the retaining metal fitting 14 is fixed, the leg piece 14a sandwiches the flat surface portion 4e so as to straddle the cylinder case 4a and restricts idling of the cylinder lock 4. Further, these leg pieces 14 a abut against the upper edge of the spacer nut 13 and restrict the upward movement of the spacer nut 13, that is, the movement of the cylinder lock 4 in the removal direction.

  In the locked state of the cylinder lock 4, when a rotational operation force (M) is applied to the entire cylinder lock 4, the load (P) is concentrated on the leg piece 14 a of the retaining bracket 14 as shown in FIG. In order to prevent the leg piece 14a from breaking, a reinforcing plate 16 is disposed on the inner wall surface of the cylinder lock receiving recess 8. The reinforcing plate 16 is formed in a strip shape from a hardened steel material, and is inserted into a plate receiving groove 8 a formed on the inner wall surface of the cylinder lock receiving recess 8. As shown in FIG. 3 (b), the reinforcing plate 16 is in contact with the leg piece 14a of the retaining metal fitting 14 from the outside in a state where it is mounted on the inner wall surface of the cylinder lock receiving recess 8. The leg piece 14a is prevented from being broken by restricting the deformation beyond the elastic deformation region to the side.

  The upper end of the reinforcing plate 16 is pressed against the rib 5a of the hard plate 5 to be described later, and is prevented from coming off. However, in order to prevent rattling after mounting, the reinforcing plate 16 is press-fitted into the plate receiving groove 8a. Is desirable.

  Further, a hard plate 5 is disposed on the surface of the handle portion 1 in order to prevent the handle portion 1 from being heated and melted by a burner or the like when the cylinder lock 4 is locked. In order to improve the moldability and workability, zinc die-cast metal is used for the lock holding portion 2a of the handle body 2 and the base of the handle portion 1 extending integrally therewith, and the hard plate 5 has a handle portion. It is laminated so as to constitute a surface layer of the handle portion 1 by being laminated on one substrate. This hard plate 5 has an appropriate thickness so that it cannot be gripped and peeled off at one end, and is fixed by screws 7 inserted from the back surface of the base.

  There is a gap between the hard plate 5 and the base for reducing thermal conductivity so that the base of the handle 1 is not easily melted when the hard plate 5 is heated by a burner or the like. It is formed. As shown in FIG. 4, a rib-shaped support portion 1a is formed on the surface of the base of the handle portion 1, and a concave surface 1b thinner than a general surface is formed on the entire periphery of the base, as shown in FIG. The hard plate 5 is laminated in a state where the ribs 5a formed on the periphery are in contact with the concave surface. In a state of being fixed by the screw 7, the back surface of the hard plate 5 is in contact with only the support portion 1a, and the remaining portion becomes a gap portion, and the non-contact state is maintained.

It is a figure which shows this invention, (a) is sectional drawing, (b) is a 1B direction arrow directional view of (a). FIG. 2 is a diagram illustrating an unlocking operation, in which (a) is a cross-sectional view taken along line 2A-2A in FIG. 1 (a) in a locked state, (b) is a cross-sectional view taken along line 2A-2A in FIG. c) is a cross-sectional view showing a state in which the handle body protrudes. It is a figure which shows the mounting method of a cylinder lock, (a) is explanatory drawing which shows the assembly method of a handle | steering-wheel main body, (b) is the 3B-3B sectional view taken on the line of (a) in the state which mounted | wore with the cylinder lock, (c) is It is the 3B-3B sectional view taken on the line of (a) which shows the load load to the retainer fitting in the state which mounted | wore with the reinforcement plate. It is a figure which shows a handle body, (a) is a front view showing a base of a handle body, (b) is a side view, (c) is a front view of a hard board laminated on a base, and (d) is a figure of (c). It is a 4D-4D line sectional view.

Explanation of symbols

1 Handle 2 Handle body 3 Handle case 4 Cylinder lock 5 Hard plate

Claims (2)

A handle main body having a handle portion at one end is slidably accommodated in the handle case, and a handle lock that prohibits or allows the pulling operation of the handle main body by locking and unlocking of the cylinder lock accommodated in the handle main body,
A handle lock in which a hard plate having high rigidity and excellent heat resistance is laminated and fixed on a surface of the handle portion by being screwed at a plurality of positions at a distance from the back surface. The handle lock according to claim 1, wherein a gap is formed in a contact surface between the back surface of the hard plate and the base of the handle.

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