JP3800418B2 - Lock handle device for pop-out doors - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pop-out door lock handle device used in a vending machine or the like.
[0002]
[Prior art]
A lock handle device for a pop-out type door widely used in vending machines or the like is attached to a bearing portion of a fixed case fixed to the door so that the inner cylinder can rotate and cannot move forward and backward. A locking plate is fixed to the rear surface, and the locking shaft portion of the handle that is inserted into the inner cylinder so as not to rotate and to be movable in the front-rear direction is urged to move in a protruding direction by a spring, A locking mechanism for fitting and fixing the lock unit and locking the locking shaft portion with respect to the bearing portion is interlocked with the rotor of the lock unit (see, for example, Patent Document 1).
[0003]
The recent burglars against vending machines tend to be violent, and the boundary between the lock unit and the lock shaft was drilled in the front and back with an electric drill at two locations on the diameter, and the burglar made it himself. By inserting a bifurcated projection at the tip of the T-shaped rotary operation tool into the perforated part and applying a strong rotational moment to the lock unit via the rotary control tool, the locking between the lock unit and the lock shaft is secured. The member is broken.
[0004]
The lock unit with the fixing member broken in this way is pulled out from the locking shaft, and the locking mechanism on the back side of the locking unit is sequentially disassembled and destroyed, so that the handle grip part pops to the front side of the fixed case. It will be possible to rotate the handle freely.
[0005]
Another violent thief method is to apply the cutting edge of an electric drill to the keyhole of the lock unit, drill the peripheral part of the keyhole of the rotor in the axial direction, and destroy the internal lock mechanism of the lock unit. The unit and the locking mechanism are disabled and the handle is popped out.
[0006]
As another violent thief method, a tapping screw is screwed into the key hole of the rotor with an electric screwdriver, a bar is hung on the head where the screw is raised, and the rotor is forcibly pulled out from the fixed body of the lock unit. Thus, the lock unit and the locking mechanism are disabled and the handle is popped out.
[0007]
[Patent Document 1]
Japanese Patent No. 3131588 [0008]
[Problems to be solved by the invention]
The present invention has been made to solve such problems, and its purpose is to make it difficult or impossible to destroy violence directed to the lock unit and improve crime prevention, and at the time of locking and unlocking. It is an object of the present invention to provide a pop-out type door lock handle device which can smoothly and accurately operate keys.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention attaches an inner cylinder to a bearing portion of a fixed case fixed to a door so that the inner cylinder can rotate and cannot move in the front-rear direction, and a stopper plate is fixed to the rear surface of the inner cylinder, A locking shaft portion of a handle is fitted into the inner tube so that it cannot rotate with respect to the inner tube and can move in the front-rear direction, and the locking shaft portion is moved and urged in a protruding direction by a spring for protrusion, Is formed on the side wall portion of the bearing portion, adjacent to the fixed case, provided with a fixed pocket portion that is immovable with respect to the fixed case, and the front opening portion of the fixed pocket portion is opened on the front surface of the door, rotor to form a keyhole in the axial direction of the lock unit, said key hole a toward the inner space of the fixed pocket portion is opened, the fixed pocket of the bottom wall portion lock unit the recess key guide to Formed in a straight line toward A guide bottom surface of the recess is formed in parallel to the axial direction of the rotor, a locking mechanism for locking the locking shaft with respect to the bearing is interlocked with the rotor, and a key knob is provided with a key body. A guided portion is formed parallel to the longitudinal axis, and the distance from the center line of the key hole to the guiding bottom surface of the recess is made to coincide with the distance from the center line of the key body to the guided portion. Yes, the guided portion of the key knob portion is slid along the bottom surface of the key guide recess portion of the fixed pocket portion, and the key knob portion of the key knob portion is moved along the bottom surface of the key guide recess portion. The guided part is rotated .
[0010]
[Effects of the Invention]
In the pop-out type door lock handle device of the present invention, the handle is popped out to the front side of the fixed case. For example, in order to unlock the door to the vending machine body, the door is opened on the front side of the door. A predetermined key is inserted into the fixed pocket portion , and a guide portion formed on the knob portion of the key is fitted into the recess portion of the bottom wall portion of the fixed pocket portion , and the key is held in a vertical posture with respect to the bottom surface. What is necessary is just to slide the said guide part along the said bottom face of this hollow part.
[0011]
At the end of this sliding operation, the tip of the key is partially engaged with the key hole of the rotor. After confirming this, the key is inserted into the key hole to a predetermined length. Thereby, the rotational constraint of the rotor with respect to the fixed main body of the lock unit is unlocked. At this stage, the key is rotated while rotating the guided portion of the key picking portion along the bottom surface of the key guide recess portion , and the rotor is rotated to a predetermined angle, thereby locking the locking shaft portion with respect to the bearing portion. The stop is released, and the handle protrudes from the fixed case by a predetermined stroke.
[0012]
When the gripping part of the protruding handle is gripped and the locking shaft part is turned by a predetermined angle in a predetermined direction, the clasp plate is detached from the receiving (not shown) on the vending machine body side, and the door is unlocked. . Therefore, by pulling the handle grip part toward the front, the door is opened for replenishment of goods and collection of sales price.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The fixed case 2 is fixed to the door 4, and the inner cylinder 8 is mounted on the bearing portion 6 of the fixed case 2 so as to be rotatable and immovable in the front-rear direction. On the rear surface of the inner cylinder 8, a stopper plate 10 that is engaged with and disengaged from a receiver (not shown) on the fixed frame side of a vending machine or the like is fixed by a stopper plate fixing screw 12. A locking shaft portion 16 of the handle 14 is fitted and inserted into the inner cylinder 8 so as not to rotate with respect to the inner cylinder 8 and to be movable in the front-rear direction. The locking shaft portion 16 is urged to move in the protruding direction by a protruding spring 18. The fixed pocket portion 20 is configured separately from the fixed case 2 and is fixed to the door 4 so as to be adjacent to the fixed case 2. The front opening 22 of the fixed pocket 20 is open to the front 24 of the door 4.
[0014]
The housing hole 28 of the lock unit 26 is formed in the side wall portion 30 of the bearing portion 6 in the radial direction and is arranged in parallel with the front surface 24 of the door 4. A key hole 34 is formed in the axial direction of the rotor 32 of the lock unit 26, and the key hole 34 opens toward the fixed pocket portion 20. On the bottom wall portion 36 of the fixed pocket portion 20, a key guide recess 38 is formed in a straight groove shape toward the lock unit 26, and the guide bottom 40 of the key guide recess 38 is the axis of the rotor 32. It is formed parallel to the direction. A locking mechanism 42 that locks the locking shaft portion 16 of the handle 14 with respect to the bearing portion 6 of the fixed case 2 is provided in conjunction with the rotor 32.
[0015]
The key 44 includes a key body 46 and a knob 48, and the knob 48 is formed with a guided portion 50 parallel to the longitudinal axis of the key body 46. The distance from the center line of the key hole 34 to the guide bottom surface 40 is matched with the distance from the center line of the key body 46 to the guided portion 50. The contour line on the distal end side of the cross section in the transverse direction of the guided portion 50 is formed by a part of an arc centered on the center line of the key hole 34. The outline of the cross section in the transverse direction of the guide bottom surface 40 of the key guide recess 28 is formed by a part of an arc centered on the center line of the key hole 34.
[0016]
The fixed case 2 is fitted into the mounting opening 52 formed in the door 4 from the front side, a washer plate (not shown) is fitted from the back side, and the washer plate is abutted against the rear surface 108 of the door 4, The screw is fixed to the door 4 by screwing a screw (not shown) from the through hole of the washer plate into the back screw hole 54. The fixed pocket portion 20 is configured separately from the fixed case 2, and is a washer plate (shown) that is fitted into the mounting opening 52 from the front side of the door 4 and is mounted from the back side, like the fixed case 2. The screw is fixed to the door 4 by screwing a screw (not shown) into the rear screw hole 56 via the screw.
[0017]
The locking mechanism 42 includes a pair of lock plates 58, a cam disk 60, and a locking spring 62. The lock plate 58 is accommodated in a guide hole 64 formed in the locking shaft portion 16 in the radial direction, passes through a side opening 66 formed in the inner cylinder 8, and a distal end portion 68 engages with and disengages from the inner surface recess 70 of the bearing portion 6. To do. The cam disk 60 is connected to the rear end portion of the rotor 32 so as not to be relatively rotatable, and has a pair of drive projections 76 that abut against the passive end portion 74 of the lock plate 58 at an eccentric position. The locking spring 62 urges the lock plate 58 toward the inner surface of the bearing portion 6.
[0018]
In the side opening 66 of the inner cylinder 8, a relief groove 78 of the cam disk 60 is formed to communicate in the circumferential direction, and a restriction groove 80 is formed in the side wall 30 of the inner cylinder 8 along the axial direction. Has been. An interlocking protrusion 82 projects from the side surface of the locking shaft portion 16, and the interlocking protrusion 82 is inserted into the restriction groove 80.
[0019]
In the door locking state in which the door 4 is restrained with respect to the fixed frame body, the handle 14 is immersed in the fixed case 2, and the locking shaft portion 16 is deeply inserted into the inner cylinder 8. The pair of lock plates 58 are pushed by the locking spring 62 so that the front end portion 68 engages with the inner surface recess 70 of the bearing portion 6, and the locking shaft portion 16 is moved inward against the bias of the protruding spring 18. The cylinder 8 is held at the immersion position.
[0020]
The key 44 is inserted into the fixed pocket portion 20 from the front opening 22, the guided portion 50 of the knob 48 is abutted against the guide bottom surface 40 of the key guide recess 38, and is slid in the direction of the lock unit 26. When 46 is inserted into the key hole 34 of the rotor 32, the rotation restriction of the rotor 32 with respect to the fixed main body 84 of the lock unit 26 is released. When the rotor 32 is rotated in the unlocking direction by the key 44, the cam disk 60 rotates in conjunction with the rotor 32, so that the passive end portion 74 of the lock plate 58 is pulled in the centripetal direction by the drive protrusion 76 of the cam disk 60. The front end portion 68 of the plate 58 escapes from the inner surface recess 70 of the bearing portion 6, and the entire lock plate 58 is drawn into the guide hole 64 of the locking shaft portion 16.
[0021]
As the lock plate 58 is retracted in this manner, the locking shaft portion 16 is unlocked from the inner cylinder 8, and the locking shaft portion 16 is protruded until the interlocking projection 82 contacts the front wall surface 86 of the restriction groove 80. The handle 14 protrudes from the fixed case 2 at the same time as it protrudes from the inner cylinder 8 by the urging of 18.
[0022]
When the handle 14 is gripped and the locking shaft 16 is rotated in a predetermined direction, the inner cylinder 8 connected by the engagement of the regulating groove 80 and the interlocking protrusion 82 rotates together with the locking shaft 16, and the clasp When the plate 10 is detached from the receiving member on the fixed frame body side, the door 4 is unlocked from the fixed frame body. At this time, the cam disk 60 moves in the escape groove 78 formed in the inner cylinder 8. Thus, the door 4 is opened by pulling the handle 14.
[0023]
When the handle 14 is rotated in the reverse direction after the door 4 is closed, the stopper plate 10 is re-engaged with the receiver. Thereafter, when the handle 14 is pushed back into the fixed case 2, the interlocking projection 82 of the locking shaft portion 16 hits the rear wall surface 90 of the restriction groove 80, and the guide hole 64 of the locking shaft portion 16 passes through the side opening 66 of the inner cylinder 8. Thus, it returns to the position communicating with the inner surface recess 70 of the bearing portion 6.
[0024]
When the rotor 32 is rotated reversely by the key 44 at this stage, the pressing of the passive end portion 74 by the driving projection 76 of the cam disk 60 is released, so that the lock plate 58 is moved in the centrifugal direction by the urging of the locking spring 62. It protrudes and the front-end | tip part 68 enters into the internal surface recessed part 70 of the bearing part 6. FIG. As a result, the locking shaft portion 16 of the handle 14 is locked again with respect to the bearing portion 6 of the fixed case 2.
[0025]
The guide hole 64 is formed substantially on the diameter of the locking shaft portion 16, the inner end portion communicates with the cavity portion 92 in the radial direction, and the pair of guide holes 64 and the cavity portion 92 have an inverted T shape in cross section. There is no. The passive end portion 74 of the lock plate 58 is bent at a right angle with respect to the main portion and is accommodated in the cavity portion 92. A spring receiving recess 94 is formed on the inner surface of the cavity 92 and accommodates a proximal end portion of a locking spring 62 constituted by a compression coil spring.
[0026]
The drive protrusion 76 of the cam disk 60 is formed on the diameter of the rear surface. A guide groove 96 is formed on the inner surface of the inner cylinder 8 in the axial direction, and a guide protrusion 98 formed on the locking shaft portion 16 is engaged with the guide groove 96. Therefore, coupled with the engagement between the restriction groove 80 and the interlocking protrusion 82, the locking shaft portion 16 can move in the axial direction with respect to the inner cylinder 8, but cannot rotate. The protruding spring 18 of the locking shaft portion 16 is also composed of a compression coil spring. After the lock plate 58, the locking spring 62, and the cam disk 60 are assembled, the lid plate 100 is fixed to the rear end 72 of the locking shaft portion 16 with a locking screw 102.
[0027]
A known pin tumbler locking mechanism is used as the internal locking mechanism of the lock unit 26, but this is not particularly limited. An angle restricting disc 105 is fitted on the connecting protrusion 104 at the rear end of the inner cylinder 8, and both inner end surfaces of the peripheral notches of the angle restricting disc 105 are restricting protrusions 107 formed at the rear end of the inner cylinder 8. The rotation or angle of the handle 14 is defined. The stopper plate 10 is fitted into a connecting protrusion 104 and is fastened and fixed by a fixing screw 12.
[0028]
The cross section of the fixed main body 84 of the lock unit 26 is formed in an oval cross section, and is fitted into the oval cross section of the accommodation hole 28 so as not to be relatively rotatable. A fixing ring 112 is screwed to the outer surface screw portion 110 of the fixing main body 84, and an annular groove 114 is formed on the outer surface of the fixing ring 112. A receiving groove 118 for inserting a U-shaped assembly metal fitting 116 is formed on the back side of the fixed case 2, and the assembly metal fitting 116 inserted into the receiving groove 118 is formed in the annular groove 114 of the fixing ring 112. A lock screw 120 into which the tip is inserted is screwed. As a result, the lock unit 26 is prevented from being removed from the accommodation hole 28.
[0029]
A known rotation angle regulating plate 124 is fitted on the angular shaft portion 122 of the rotor 32, and is fastened and fixed by a nut 126. The inner end portion 128 of the rectangular shaft portion 122 is formed in an oval cross section, and is engaged with the receiving hole 130 of the oval cross section of the cam disk 60 so as not to be relatively rotatable. The front portion 132 of the fixed main end of the lock unit 26 is formed in a concave curved surface, and it is easy to find the position of the key hole 34 of the rotor 32 with a fingertip. Further, as shown in FIG. 4, in the unlocked state, that is, in the locked state, the key hole 34 is inclined with respect to the bottom wall portion 36 of the pocket portion 20 (for example, 45). Corresponding to this, the plate-like key body 46 is inclined and arranged at the same angle with respect to the end face of the knob 48 as shown in FIG. Therefore, after the key body 46 is inserted into the keyhole 34, the key 44 can be easily rotated through the knob 48.
[0030]
【The invention's effect】
As described above, in the lock handle device for a pop-out type door according to the present invention, the lock unit is embedded and fixed in the accommodation hole formed in the side wall portion of the bearing portion, and the key hole of the rotor is the fixing pocket portion adjacent to the fixing case. Because it opens toward the inner space of the machine, the cutting edge of a breaking tool such as an electric drill cannot be abutted in a normal posture perpendicular to the rotor, and protection against the recent violent thieves is possible. improves.
[0031]
In addition, the fixed pocket portion is provided so as not to move with respect to the fixed case, and a key guide recess is formed in a straight line toward the lock unit on a bottom wall portion of the fixed pocket portion , and the recess The guide bottom surface is formed parallel to the axial direction of the rotor, the guided portion parallel to the longitudinal axis of the key body is formed on the key knob portion, and the guide bottom surface of the recess is formed from the center line of the key hole. The distance from the center line of the key body to the guided portion, and the guided portion of the key knob portion is slid along the bottom surface of the key guide recess portion of the fixed pocket portion. Since the guided portion of the key knob portion is rotated along the bottom surface of the key guide recess , the key body can be inserted into the key hole smoothly and accurately.
[Brief description of the drawings]
FIG. 1 is a front view of a lock handle device for a pop-out type door according to an embodiment of the present invention in a locked state.
FIG. 2 is a rear view of the pop-out type door lock handle device of FIG. 1;
FIG. 3 is a cross-sectional view taken along line AA in FIG.
4 is a cross-sectional view taken along line BB in FIG. 1. FIG.
FIG. 5 is a cross-sectional view corresponding to FIG. 4 in a key insertion state.
6 is a front view of a key used for the pop-out type door lock handle device of FIG. 1; FIG.
7 is a left side view of the key of FIG. 6. FIG.
FIG. 8 is a rear view of the key of FIG. 6;
9 is a cross-sectional view taken along the line CC of FIG.
10 is a cross-sectional view taken along line DD in FIG. 1. FIG.
[Explanation of symbols]
2 ... fixed case, 4 ... door, 6 ... bearing part, 8 ... inner cylinder, 10 ... clasp plate, 12 ... clasp plate fixing screw, 14 ... handle, 16 ... locking shaft part, 18 ... projection spring, DESCRIPTION OF SYMBOLS 20 ... Fixed pocket part , 22 ... Front opening part, 24 ... Front face of door, 26 ... Locking unit, 28 ... Housing hole, 30 ... Side wall part, 32 ... Rotor, 34 ... Key hole, 36 ... Bottom wall part, 38 ... Key guide recess, 40 ... guide bottom, 42 ... locking mechanism, 44 ... key, 46 ... key body, 48 ... knob, 50 ... guided part, 52 ... mounting opening, 54 ... back screw hole, 56 ... Rear screw hole, 58 ... Lock plate, 60 ... Cam disk, 62 ... Locking spring, 64 ... Guide hole, 66 ... Side opening, 68 ... Front end, 70 ... Inner recess, 72 ... Rear end, 74 ... Passive end, 76 ... Drive protrusion, 78 ... Escape groove, 80 ... Restriction groove, 82 ... Interlocking protrusion, 84 Fixed body, 86 ... front wall surface, 90 ... rear wall surface, 92 ... cavity, 94 ... spring receiving recess, 96 ... guide groove, 98 ... guide protrusion, 100 ... cover plate, 102 ... screw, 104 ... connection protrusion, 105 DESCRIPTION OF SYMBOLS: Angle control disk, 107 ... Control projection, 108 ... Rear surface of door, 110 ... Outer screw part, 112 ... Fixing ring, 114 ... Ring groove, 116 ... Assembly metal fitting, 118 ... Receiving groove, 120 ... Lock screw, 122 ... Square shaft , 124 ... Rotation angle regulating plate, 126 ... Nut, 128 ... Inner end, 130 ... Receiving hole, 132 ... Front part

Claims (1)

An inner cylinder is mounted on a bearing portion of a fixed case fixed to the door so as to be rotatable and immovable in the front-rear direction, a stopper plate is fixed to a rear surface of the inner cylinder, and the inner cylinder is fixed to the inner cylinder. The locking shaft portion of the handle is fitted and inserted so as not to rotate and can be moved in the front-rear direction, the locking shaft portion is moved and urged in the protruding direction by a protruding spring, and a housing hole for the lock unit is formed in the side wall portion of the bearing portion. A fixed pocket portion that is immovable with respect to the fixed case is provided adjacent to the fixed case, a front opening portion of the fixed pocket portion is opened on a front surface of the door, and a key hole is formed in the rotor of the lock unit. formed in the axial direction, the key hole towards the interior space of the fixed pocket portion is opened, the recess for the key guide is formed in a straight line toward the lock unit to the bottom wall portion of the fixed pocket, the recess The guide bottom of the rotor A locking mechanism that is formed in parallel with the linear direction and that locks the locking shaft portion with respect to the bearing portion is interlocked with the rotor, and a guided portion parallel to the longitudinal axis of the key body is provided at the key picking portion. A distance from the center line of the key hole to the guide bottom surface of the recess is matched with a distance from the center line of the key body to the guided part, and the key of the fixed pocket part The guided portion of the key knob portion is slid along the bottom surface of the guide recess portion, and the guided portion of the key knob portion is rotated along the bottom surface of the key guide recess portion. Lock handle device for pop-out doors.

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