JP2015194018A - Structure of lock case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure of a lock case, which has a small number of parts, is easy in manufacture, and also provides high strength.SOLUTION: The structure is provided with a lock case 11 in which a pair of side plate parts 47 and 49 in parallel to each other are fixed to the inside of a door on front and back surfaces of the door, a groove-shaped recessed part 17 formed by recessing the side plate parts 47 and 49 toward the case inside over a rear plate part 43 from a front plate part, a pair of projection parts 19 of projecting a rear end part 59 to both end sides in the diametrical direction in an outer cylinder part 57 of an operation member, a pair of projection part entrance cutouts 21 formed by cutting out both sides of a groove-shaped recessed part inner wall 69 for making the respective projection parts 19 of the outer cylinder part 57 enter the groove-shaped recessed part 17, a groove-shaped recessed part inner wall back face 23 of becoming the case inside of the groove-shaped recessed part inner wall 69, a pin insertion hole 25 bored in the front plate part, a pin penetration fixation hole 27 which is bored in the projection parts 19 and through which a pin 71 along the groove-shaped recessed part inner wall back face 23 penetrates and a pin guide piece 29 formed by cutting-raising the groove-shaped recessed part inner wall 69 and sandwiching the pin 71 with the groove-shaped recessed part inner wall back face 23.

Description

  The present invention relates to the structure of a lock case such as a lock device.

  Conventionally, an operation member mounting structure for a lock box such as a locking device has been previously engaged with a positioning guide piece of an arbitrary shape molded separately from a case body in a vertical engagement hole formed in a wide side wall of the case body. The positioning guide piece is engaged so that it does not come off the wide side wall of the case body, and the insertion fixing pin is formed in the positioning guide piece from the small hole on the front wall of the case body, It pierced the engaging part of the outer cylinder of the cylinder unit (see Patent Document 1). However, since the mounting structure of the operation member to the conventional lock box has many assembly parts, it takes time to mount the operation member to the lock box, and the lock box itself is expensive. Had. Therefore, this document discloses an operation member mounting structure in which the operation member can be attached to the lock box in a short time and the cost of the lock box can be reduced.

  The operation member mounting structure includes a lock box, at least one operation member fixedly attached to the wide side wall of the lock box, and a plurality of operation members fixedly attached to the lock box. It consists of an elongated insertion fixing pin. The wide side wall of the lock box has a plurality of small protrusions that are formed in the shape of a small protrusion on the inside of the case body so as to face each other in the vertical direction. The outer curved surfaces of these small protrusions constitute guide passages that respectively allow passage of a total of two insertion fixing pins. Thereby, it is possible to attach the operation member to the lock box in a short time, and to reduce the cost of the lock box.

JP 2002-256733 A

  However, the above-described conventional operation member mounting structure has two fixing pin positioning guides formed by pressing so as to protrude from the inner wall surface of the wide side wall, a fitting hole, Since the dharma receiving hole is formed, the notch loss is increased, and the strength of the side plate portion is easily lowered. In addition, when there is a gap between the pin and the operation member, the operation member after being fixed is rattled.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a structure of a lock case that has a small number of parts, can be easily manufactured, and can obtain high strength.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
In the structure of the lock case 11 according to the first aspect of the present invention, the front plate portion and the rear plate portion 43 are parallel to the mouth 39 of the door 15, and the pair of side plate portions 47 and 49 are parallel to the front and back surfaces 45 of the door 15. And a lock case 11 fixed to the inside of the door 15;
A groove-like recess 17 formed by recessing at least one of the side plate portions from the front plate portion to the rear plate portion 43 from the case outer side toward the case inner side,
A pair of convex portions 19 projecting to both ends in the diametrical direction at the rear end portion 59 which is one end side in the axial direction in the outer cylindrical portion 57 of the operation member;
A pair of protrusion entry notches 21 formed in the groove-like recess 17 and notched on both sides of the groove-like recess inner wall 69 in order to allow the respective protrusions 19 of the outer cylinder part 57 to enter;
A groove-like recess inner wall back surface 23 which is the case inside of the groove-like recess inner wall 69;
A pin insertion hole 25 formed in the front plate portion on the extension of the groove-shaped recess inner wall back surface 23;
A pin through-fixing hole 27 that is drilled in the convex portion 19 inserted into the convex portion entry notch 21 and is inserted into the pin insertion hole 25 and through which the pin 71 along the inner surface of the inner surface of the groove-shaped concave portion 23 passes,
It is characterized by comprising.

In this structure of the lock case 11, the pair of side plate portions 47 and 49 of the lock case 11 is formed with a groove-like recess 17 that is recessed from the outer side of the case toward the inner side of the case from the front plate portion to the rear plate portion 43. For this reason, the lock case 11 has increased rigidity against bending and distortion.
In the outer cylinder portion 57, the pin 71 inserted along the groove-like recess inner wall back surface 23 penetrates the projection 19 that has entered the projection entry notch 21. The pin 71 penetrating the pin penetration fixing hole 27 of the convex portion 19 is firmly supported by the groove-shaped concave inner wall back surface 23 and the side plate case inner surface from the inside of the case. Thereby, the operation member can obtain a high pulling strength from the lock case 11.
Further, the pair of pins 71 are passed through the pin penetration fixing hole 27 of the convex portion 19 along the groove-shaped concave inner wall back surface 23 inside the case. The pair of pins 71 act as a reinforcing material that is parallel to the groove-shaped recess 17 and sandwiches the groove-shaped recess 17 inside the case. Thereby, as for the lock case 11, the groove-shaped recessed part 17 and the pin 71 become an integral structure, and the intensity | strength of the side-plate parts 47 and 49 is raised further.
Moreover, in the lock case 11, the groove-shaped recess 17 and the protrusion entry notch 21 are formed by press working. For this reason, in order to fix the operation member, the lock case 11 does not require a separate member other than the pin, and can be formed without increasing the number of work steps such as welding.

The structure of the lock case 11 according to claim 2 of the present invention is the structure of the lock case 11 according to claim 1,
A pin guide piece 29 formed by cutting and raising the groove-shaped recess inner wall 69 and sandwiching the pin 71 with the groove-shaped recess inner wall back surface 23;

  In this structure of the lock case 11, the pin 71 inserted along the groove-shaped recess inner wall back surface 23 is sandwiched between the pin guide piece 29 and the groove-shaped recess inner wall back surface 23, and the pin penetration fixing hole of the protrusion 19 27 is penetrated. The pin 71 is supported on the inner side of the case by the inner surface of the inner surface of the groove-shaped recess and the inner side surface of the side plate portion case, and an operation member is attached to the pin 71. The lock case 11 can also be formed by pressing the pin guide piece 29, and the lock case 11 is formed without increasing the number of work steps such as welding without requiring another member other than the pin in order to fix the operation member. it can.

The structure of the lock case 11 according to claim 3 of the present invention is the structure of the lock case 11 according to claim 1 or 2,
A run-up step portion 75 that bends the distal end portions 77 of the pair of pins 71 inserted along each of the pair of groove-shaped recess inner wall back surfaces 23 in the direction away from each other is the rear plate portion 43 inside the case. It is provided in the side.

  In the structure of the lock case 11, the pin 71 inserted from each of the pair of pin insertion holes 25 passes through the pin penetration fixing hole 27 of the convex portion 19, and then is mounted on the rear plate portion 43 side. It hits. When further inserted, the pair of pins 71 that have hit the riding step 75, the tip rides on the riding step 75, and the tips are bent in a direction away from each other and spread. As a result, there is no play between the pin 71 and the pin through-fixing hole 27, and a contact state is established and the convex portion 19 is fixed to the pin 71 without rattling. Further, the pin 71 that rides on the ride-up step portion 75 is restricted from moving or rattling in the direction along the axis by the frictional force generated by the elastic restoring force.

  According to the structure of the lock case according to the first aspect of the present invention, the operation member can be fixed to the lock case with a small number of parts, the manufacture is easy, and high strength is obtained.

  According to the structure of the lock case according to the second aspect of the present invention, the pin can be supported by being sandwiched between the pin guide piece and the back surface of the inner wall of the groove-shaped recess. Moreover, this pin guide piece can also be formed by press work.

  According to the structure of the lock case according to the third aspect of the present invention, the operation member can be fixed to the lock case without rattling by bending the straight pin after passing through the pin penetration fixing hole.

It is a perspective view of a lock device provided with the structure of the lock case concerning the embodiment of the present invention. It is a disassembled perspective view of the lock case shown in FIG. It is a sectional side view of the locking device shown in FIG. FIG. 4 is a sectional view taken along line AA in FIG. 3. FIG. 4 is a sectional view taken along line BB in FIG. 3.

Embodiments according to the present invention will be described below with reference to the drawings.
1 is a perspective view of a lock device 13 having a structure of a lock case 11 according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the lock case 11 shown in FIG. 1, and FIG. 3 is a lock shown in FIG. 4 is a sectional view taken along line AA in FIG. 3, and FIG. 5 is a sectional view taken along line BB in FIG.
The structure of the lock case 11 according to the present embodiment is suitable for use in the lock device 13 fixed to the door 15 (see FIG. 5). The structure of the lock case 11 includes a lock case 11, a groove-like recess 17, a protrusion 19, a protrusion entry notch 21, a groove-like recess inner wall back surface 23, a pin insertion hole 25, and a pin through fixing hole 27. And a pin guide piece 29.

  The lock device 13 has a dead bolt 31 slidably installed in the lock case 11. The dead bolt 31 advances and retreats from the end 39 (see FIG. 5) through the front and back plates 33 and the forward and backward opening holes 37 of the front plate 35. The dead bolt 31 has a guide shaft protruding and is slidably supported by an elongated hole formed on the lock case 11 side. The dead bolt 31 is formed in a U-shaped cross-section perpendicular to the advancing / retreating direction with the opening facing downward. A kama dead bolt 41 is provided in the dead bolt, and the kama dead bolt 41 is rotatable on a support shaft fixed to the lock case 11. A curved groove is formed in the kama dead bolt 41, and the curved groove engages with a guide shaft that also serves as an interlocking pin fixed to the dead bolt 31. Thereby, the Kama dead bolt 41 is driven by the advancement of the dead bolt 31, protrudes in a circular arc from the advance / retreat opening hole 37, and is locked to the back surface of the strike plate (not shown).

  In the lock case 11, a front back plate 33 as a front plate portion and a rear plate portion 43 (see FIG. 2) are in parallel with the wood 39 of the door 15, and a first side plate which is a pair of side plate portions on the front and back surfaces 45 of the door 15. The portion 47 and the second side plate portion 49 are fixed inward of the door 15 in parallel. The first side plate portion 47 and the second side plate portion 49 are fixed integrally with the front back plate 33 by fastening the fixing piece 51 formed by bending both to the front back plate 33 with screws (not shown). Is done.

  A groove-like recess 17 is formed in each of the first side plate portion 47 and the second side plate portion 49. The groove-shaped recess 17 is formed by recessing at least one side plate portion from the front back plate 33 to the rear plate portion 43 from the case outer side toward the case inner side. In the present embodiment, the groove-shaped recess 17 is formed in both the first side plate portion 47 and the second side plate portion 49 as shown in FIG.

  An operation member is fixed to the lock case 11. The operation members are a cylinder lock 53 and a thumb turn 55. In the present embodiment, a cylinder lock 53 is fixed to the first side plate portion 47, and a thumb turn 55 is fixed to the second side plate portion 49. A convex portion 19 is formed on the cylinder lock 53 and the thumb turn 55. In the outer cylinder portion 57 of the operation member (cylinder lock 53, thumb turn 55), the convex portion 19 is formed at a rear end portion 59 which is one end side in the axial direction and protrudes to both ends in the diameter direction to form a pair.

  A circular rear end seating surface 61 in which the groove bottom of the groove-shaped recess 17 is further recessed is formed in the groove-shaped recess 17 of the first side plate portion 47 and the second side plate portion 49. The rear end seat surface 61 is formed with a concentric locking mechanism connecting hole 63. The cylinder lock 53 and the thumb turn 55 are arranged with the rear end portion 59 in contact with the rear end portion seating surface 61. The cylinder lock 53 and the thumb turn 55 arranged on the rear end seat surface 61 are interlocked with the lock mechanism connecting member 65 arranged in the lock mechanism connecting hole 63. The lock mechanism connecting member 65 is, for example, a dharma hole 67 that constitutes a lock mechanism portion built in the lock case 11.

  In the groove-like concave portion 17, a pair of convex portion entry notches 21 are formed vertically with the rear end seat surface 61 interposed therebetween. The convex portion entry notches 21 are formed by notching both sides of the groove-like concave inner wall 69 in order to allow the pair of convex portions 19 of the rear end portion 59 of the outer cylinder portion 57 to enter. That is, the rear end portion 59 of the cylinder lock 53 and the thumb turn 55 can be brought into contact with the rear end seating surface 61 by causing the convex portion 19 to enter the convex portion entry notch 21, and the upper and lower convex portions 19 are connected to the side plate. It comes to be located in the inner surface side of the parts 47 and 49.

  A groove-like recess 17 formed by recessing the first side plate portion 47 and the second side plate portion 49 inside the case protrudes in a ridge shape inside the case. The groove-like recess 17 has a pair of groove-like recess inner walls 69 inside the groove when viewed from the outside of the case. When viewed from the inside of the case, the groove-shaped recess inner wall 69 is the above-described groove-shaped recess inner wall back surface 23 (see FIG. 2).

  A pin insertion hole 25 is formed in the front back plate 33. In the present embodiment, a total of four pin insertion holes 25 are drilled, two for the first side plate and two for the second side plate. The pin insertion hole 25 is formed on the extension of the groove-like recess inner wall back surface 23. The pins 71 are inserted into the pin insertion holes 25, respectively. The pin insertion hole 25 into which the pin 71 is inserted is covered with a front plate 35 that is overlapped with the front side of the front back plate 33 and fixed to the end 39. Note that a small hook piece 79 is formed at the rear end located in the pin insertion hole 25 of the pin 71 for hooking a jig when the pin 71 is pulled out.

  A pin penetration fixing hole 27 is formed in the pair of convex portions 19 provided at the rear end portion 59 of the outer cylinder portion 57 of the cylinder lock 53 and the thumb turn 55. The cylinder lock 53 and the thumb turn 55 allow the convex portion 19 to enter the convex portion entry notch 21, and the rear end portion 59 is disposed on the rear end portion seating surface 61 of the groove-shaped concave portion 17. The pin penetration fixing hole 27 of each convex part 19 is located inside the case, and is drilled in the extending direction of the groove-like concave part 17 inside the case. The pin 71 inserted from the pin insertion hole 25 of the front back plate 33 is inserted into the back side along the groove-like recess inner wall back surface 23. The pin 71 inserted along the groove-like recess inner wall back surface 23 passes through the pin penetration fixing hole 27 of the projection 19 protruding from the projection entry notch 21 to the inside of the case. As a result, the cylinder lock 53 and the thumb turn 55 are penetrated by the pin 71 through the convex portion 19 located inside the case, and the separation from the lock case 11 is restricted.

  Pin guide pieces 29 are provided as upper and lower pairs on the inner wall back surface 23 of the groove-shaped recess of each of the first side plate portion 47 and the second side plate portion 49. Guide pieces 29 are provided. The pin guide piece 29 is formed by cutting and raising the groove-shaped recess inner wall 69. The pin guide piece 29 is inserted in a substantially square shape so as to surround the pin 71 by combining a substantially L-shaped plate member with the groove-shaped recess inner wall back surface 23 inside the case. A square hole 73 (see FIG. 4) is formed.

  Further, in the structure of the lock case 11 according to the present embodiment, a riding step portion 75 is formed on the rear plate portion 43. The climbing step 75 is formed on the upper and lower surfaces of the bent portion 81 formed in the rear plate portion 43 so as to protrude in a substantially rectangular shape toward the front back plate 33, so as to be continuous with the rear surface 23 of the inner wall of each groove-like recess. Is formed. The pair of upper and lower riding step portions 75 are formed wider than the interval width between the pair of groove-shaped recess inner wall back surfaces 23 to form a substantially stepped surface as shown in FIG. 3, and are inserted as shown in FIG. The forming surface narrows the square hole 73. The ride-up step portion 75 separates the tip end portions 77 of the pair of pins 71 inserted from the front back plate 33 side along the pair of groove-shaped recess inner wall back surfaces 23 from each other in a direction away from each other (in FIG. Direction).

Next, the operation of the structure of the lock case 11 having the above configuration will be described.
In the structure of the lock case 11 according to the present embodiment, the pair of the first side plate portion 47 and the second side plate portion 49 of the lock case 11 extend from the front back plate 33 to the rear plate portion 43 and from the case outer side to the case inner side. A groove-like recess 17 that is recessed is formed. For this reason, the lock case 11 has increased rigidity against bending and distortion.

  In the outer cylinder portion 57, the pin 71 inserted along the groove-like recess inner wall back surface 23 penetrates the projection 19 that has entered the projection entry notch 21. The pin 71 penetrating the pin penetration fixing hole 27 of the convex portion 19 is firmly supported by the groove-shaped concave inner wall back surface 23 and the side plate case inner surface from the inside of the case. Thereby, the cylinder lock 53 and the thumb turn 55 can obtain a high pulling strength from the lock case 11.

  Further, the pair of pins 71 are passed through the pin penetration fixing hole 27 of the convex portion 19 along the groove-shaped concave inner wall back surface 23 inside the case. The pair of pins 71 act as a reinforcing material that is parallel to the groove-shaped recess 17 and sandwiches the groove-shaped recess 17 inside the case. Thus, in the lock case 11, the groove-shaped recess 17 and the pin 71 are an integral structure, and the strength of the first side plate portion 47 and the second side plate portion 49 is further increased.

  Moreover, in the lock case 11, the groove-shaped concave portion 17, the convex portion entry notch 21, and the pin guide piece 29 are formed from a single plate material by pressing. For this reason, in order to fix the cylinder lock 53 and the thumb turn 55, the lock case 11 does not require a separate member other than a pin, and can be formed without increasing work man-hours such as welding.

  In the structure of the lock case 11, the pin 71 inserted from each of the pair of pin insertion holes 25 passes through the pin penetration fixing hole 27 of the convex portion 19, and then protrudes from the rear plate portion 43. Hit step 75. When the pair of pins 71 that have come into contact with the climbing step portion 75 are further inserted, the distal ends of the pair of pins 71 climb on the climbing step portion 75, and the distal ends of the pair of pins 71 are bent in a direction away from each other, and are expanded. As a result, there is no play between the pin 71 and the pin through-fixing hole 27, and a contact state is established and the convex portion 19 is fixed to the pin 71 without rattling. Further, the pin 71 that rides on the ride-up step portion 75 is restricted from moving or rattling in the direction along the axis by the frictional force generated by the elastic restoring force. As a result, the cylinder lock 53 and the thumb turn 55 can be securely fixed to the lock case 11 without rattling.

  Therefore, according to the structure of the lock case 11 according to the present embodiment, it is easy to manufacture with a small number of parts, and high strength can be obtained.

DESCRIPTION OF SYMBOLS 11 ... Lock case 15 ... Door 17 ... Groove-shaped recessed part 19 ... Convex part 21 ... Protruding part entrance notch 23 ... Groove-shaped recessed part inner wall back surface 25 ... Pin insertion hole 27 ... Pin penetration fixing hole 29 ... Pin guide piece 33 ... Front plate part (Front back plate)
39 ... Kiguchi 43 ... Rear plate portion 45 ... Front and back surfaces 47 ... Side plate portion (first side plate portion)
49 ... side plate (second side plate)
53 ... Operation member (cylinder lock)
55 ... Operation member (thumb)
57 ... Outer tube part 59 ... Rear end part 69 ... Inner wall of groove-shaped recess 71 ... Pin 75 ... Riding step part 77 ... Tip part

Claims (3)

A lock case that is fixed to the inside of the door with a front plate portion and a rear plate portion being parallel to the mouth of the door, and a pair of side plate portions being parallel to the front and back surfaces of the door,
A groove-shaped recess formed by recessing at least one of the side plate portions from the front plate portion to the rear plate portion from the case outer side toward the case inner side,
A pair of convex parts projecting to both ends in the diametric direction at the rear end part which is one end side in the axial direction in the outer cylinder part of the operation member;
A pair of protrusion entry notches formed in the groove-like recesses, and notched on both sides of the groove-like recess inner wall to allow the respective protrusions of the outer cylinder part to enter;
A groove-shaped recess inner wall back surface which is the case inside of the groove-shaped recess inner wall;
A pin insertion hole formed in the front plate portion on the extension of the back surface of the inner surface of the groove-shaped recess,
A pin through-fixing hole that is drilled in the convex portion inserted into the convex portion entry notch, inserted into the pin insertion hole, and through which a pin along the inner wall back surface of the groove-shaped concave portion passes;
The structure of the lock case characterized by comprising. The structure of the lock case according to claim 1,
A lock case structure comprising a pin guide piece formed by cutting and raising the inner wall of the groove-shaped recess and sandwiching the pin with the rear surface of the inner wall of the groove-shaped recess. The structure of the lock case according to claim 1 or 2,
Riding stepped portions that bend the tip portions of the pair of pins inserted along the back surfaces of the inner walls of the pair of groove-shaped recesses in the direction away from each other are provided on the rear plate portion side inside the case. The structure of the lock case characterized by

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