JPH09317267A - Lock mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent distortion such as depression in a mounting place when a cylinder and a thumb turn are mounted and fixed to a thin metal plate door. SOLUTION: A lock mounting structure comprises a lock mainbody internally inserted in the side end of a door 5 made from a thin metal plate such as a steel plate and a cylinder 1 and a thumb turn 2 in a pair held and fixed to the door 5 between both sides of the door 5 at a position where the lock mainbody is installed. A cylindrical mounting column 11 protruded on the back of the cylinder 1 is passed through the lock mainbody and a mounting screw 6 is inserted in a screw hole passing through the surface and back of the thumb turn 2 and threaded to a female screw hole open to the end of the mounting column 11 to connect the cylinder 1 and the thumb turn 2 together. In this case, a spacer 3 is intervened in a gap between the back of the thumb turn 2 and the end of the mounting column 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock mounting structure useful for mounting a cylinder and thumb turn on a door made of a thin metal plate such as a steel plate.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional example of a lock mounting structure in which a cylinder and a thumb turn are mounted on a door made of a thin metal plate such as a steel plate. In the conventional example, a lock body 4 is installed by being inserted into a side end portion of a door 5 made of a thin metal plate. At the installation position of the lock body 4, a pair of cylinders 1 and thumb-turns are provided from both sides of the door 5. 2 is sandwiched and fixed to the door 5. On the back surface of the cylinder 1, a cylindrical mounting column 11 having a female screw hole opened at the tip is provided in a protruding manner, and this mounting column 11 penetrates the lock body, while,
The thumb turn 2 has screw holes penetrating to the front and back, and the mounting screw 6 is inserted through the screw hole and screwed into the female screw hole of the mounting post 11 to connect the cylinder 1 and the thumb turn 2. Has become.

[0003]

However, in the lock mounting structure according to the above-mentioned conventional example, since there is a play gap between the tip of the mounting column 11 and the back side of the thumb turn 2,
There is a drawback that the mounting screw 6 is excessively tightened excessively and distortion such as a recess is likely to occur in the mounting position of the cylinder 1 and the thumb turn 2 in the door 5.

The present invention has been made in view of the above circumstances, and is a lock mounting structure that prevents distortion such as a recess at the mounting position when mounting and fixing a cylinder and a thumb turn to a door made of a thin metal plate. Is provided.

[0005]

In order to solve the above problems, the lock mounting structure of the present invention has a lock body to be inserted into a side end portion of a door made of a thin metal plate, and a lock body. It is composed of a pair of cylinders and thumb turns that are sandwiched and fixed to the door from both sides of the door, and a cylindrical mounting column having a female screw hole that projects from the back of the cylinder and has an opening at the tip is passed through the lock body. In the lock mounting structure in which the mounting screw is inserted through the screw holes penetrating the front and back of the thumb turn and screwed into the female screw hole of the mounting post to connect the cylinder and the thumb turn, the back side of the thumb turn and the tip of the mounting post It is characterized in that a spacer is interposed in the gap between them.

In this lock mounting structure, the spacer is interposed in the gap between the back side of the thumb turn and the tip of the mounting column, so that the spacer and the tip of the mounting column provide a space between the cylinder and the thumb turn with respect to the thickness of the door. An appropriate interval of is secured. Therefore, excessive tightening of the mounting screw does not cause distortion such as a dent in the mounting position of the cylinder or thumb turn on the door.

In the present invention, the spacer is provided with a guide hole through which the mounting screw is inserted, and a wide diameter portion is formed on the back side of the guide hole, into which the tip end of the mounting column abuts against and is fitted. If so, it is preferable. In this case, when the mounting screw is screwed to the mounting column, the mounting screw is guided by the guide hole provided in the spacer from the screw hole of the thumb turn without being displaced to the mounting column, so that the mounting work is easy. Become. When interposing the spacer,
The spacer can be temporarily fixed to the tip of the mounting column by abutting and fitting the tip of the mounting column to the wide diameter portion formed on the back side of the guide hole. Can be done easily.

Further, in the present invention, it is preferable that an engaging portion which engages with the front end portion of the spacer is formed on the back side of the thumb turn. In this case, by engaging the engaging portion formed on the back side of the thumb turn with the front end of the spacer, the spacer and the thumb turn can be aligned, and the thumb turn is temporarily fixed to a predetermined position of the door. Therefore, the mounting work of the mounting screw becomes easy.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view showing a lock mounting structure according to an embodiment of the present invention. FIG. 2 is an exploded cross-sectional view showing the lock mounting structure according to the above embodiment. Further, FIG. 3 shows a spacer used in the same embodiment, and FIG. 4 shows a thumb turn used in the same embodiment.

As shown in the figure, the lock mounting structure according to the embodiment has a lock body 4 inserted into a side end of a door 5 made of a thin metal plate such as a steel plate, and a door at a position where the lock body 4 is installed. 5 is composed of a pair of cylinders 1 and thumb-turns 2 sandwiched and fixed to the door 5 from both sides, and a cylindrical mounting post 11 protruding from the rear surface of the cylinder 1 is passed through the lock body 4 to The cylinder 1 and the thumb turn 2 are connected by inserting the mounting screw 6 from the screw hole 23 penetrating the front and back into the female screw hole opened at the tip of the mounting post 11. The spacer 3 is interposed in the gap between the back side of 2 and the tip of the mounting post 11.

More specifically, the door 5 has a surface formed of a thin metal plate such as a steel plate, and the lock body 4 is inserted and installed at the side end of the door 5 on the open side. Further, the cylinder 1 and the thumb turn 2 are provided on both side surfaces of the door 5 in correspondence with the inserting positions of the lock body 4.
Mounting openings 51 and 52 for mounting the are formed.

The lock body 4 is formed in a thin box shape thinner than the door 5, and is inserted inside from the side surface of the door 5 on the open side, and the side surface portion provided with the dead bolt 41 is the door. 5 is exposed and fixed to the above-mentioned side surface.

The cylinder 1 is composed of a cylinder body 10 which is exposed to the outside of the side surface of the door 5 and has a key insertion hole on the front side, and two left and right mounting columns projecting from the back side of the cylinder body 10.
11, 11 and a cylinder bar 12 projecting from the center of the back side of the cylinder body 10. The mounting column 11 is formed in a tubular shape having a female screw hole opened at its tip inside. In this cylinder 1, the mounting pillars 11 and 11 and the cylinder bar 12 are inserted into the door 5 from one side surface of the door 5 through the mounting opening 51 and the cylinder body 10 is provided.
It is attached by abutting the back side peripheral edge of the door 5 to the side surface of the door 5. At this time, the mounting columns 11 and 11 and the cylinder bar 12 respectively penetrate the lock body 4 and project to the opposite side.

The thumb turn 2 has a thumb turn main body 20 exposed to the outside of the side surface of the door 5, a thumb piece 21 provided on the front side of the thumb turn main body 20, and left and right screw holes 23, 23 penetrating the front and back sides of the thumb turn main body 20. And a cylinder bar connecting portion 22 that is formed at the center of the back side of the thumb turn body 20 and engages with the tip end portion of the cylinder bar 12. The thumb turn 2 is connected to the other side surface of the door 5 from the mounting opening 52 through the spacer 3 to the cylinder 1, so that the back side peripheral edge of the thumb turn body 20 contacts the side surface of the door 5. At this time, the mounting screw 6 is screwed into the mounting post 11 from the screw hole 23, and the spacer 3 is provided in the gap between the tip of the mounting post 11 of the cylinder 1 and the back side of the thumb turn body 20. It is designed to intervene exactly, and the cylinder bar connecting part 22
The tip portion of the cylinder bar 12 is engaged with the. The cylinder bar 12 is for rotating the dead bolt 41 from the side surface of the lock body 4 by rotating, and the rotation operation of the cylinder bar 12 is performed by inserting a key from the key insertion hole on the front side of the cylinder body 10 and rotating it. Alternatively, it is performed by rotating the thumb piece 21 of the thumb turn 2.

The spacer 3 is shown in FIGS. 3 (A) (B) (C).
As shown in FIG. 3, the left and right cylindrical portions 31, 31 having guide holes 33 for inserting the mounting screws 6 therein, and the cylindrical portions 31, 3
Upper and lower connecting pieces 3 formed in a thin circular arc that connects 1
2, 32 and 32 have a cavity 34 in the central portion. In the tubular portion 31 of the spacer 3, the guide hole 33 is formed so as to have a diameter smaller than that of the mounting column 11 and to allow the mounting screw 6 to be inserted. A wide-diameter portion 33a is formed so that the tip portion of the pillar 11 fits and abuts against the back. Further, the front side portion of the guide hole 33 is tapered so that the mounting column 11 can be easily inserted. Further, the spacer 3 has a shape in which the connecting piece portion 32 is projected to the front side with respect to the tubular portion 31.

Further, in this embodiment, the thumb turn main body 20 of the thumb turn 2 has a thickness protruding to the side surface of the door 5, and the back side of the thumb turn body 20 is engaged with the front end of the coupling piece 32 of the spacer 3. As a portion, substantially arcuate recessed grooves 24, 24 are vertically formed so as to substantially straddle the left and right screw holes 23, 23.

In the lock mounting structure according to the embodiment,
The construction method of each member will be described. First, the lock body 4 is inserted and installed in the side end of the door 5 on the open side, and the cylinder 1 is attached from the attachment opening 51 formed on one side surface of the door 5. At this time, the mounting columns 11 and 11 and the cylinder bar 12 are inserted into the door 5 through the mounting opening 51, and the back side peripheral edge of the cylinder body 10 is brought into contact with the side surface of the door 5 to attach the mounting columns 11 and 1.
1 and the tip side of the cylinder bar 12 are respectively the lock body 4
And make it project to the other side.

Next, the spacer 3 is mounted through the mounting opening 52 formed on the other side surface of the door 5. At this time,
By inserting the tip of the mounting column 11 protruding through the lock body 4 into the wide diameter portion 33a on the back side of the guide hole 33 in the tubular portion 31 of the spacer 3, the spacer 3 is temporarily fixed. . Further, the cylinder bar 12 protruding through the lock body 4 is introduced into the cavity 34 at the center of the spacer 3.

Next, the thumb turn 2 is mounted on the spacer 3 from the mounting opening 52 of the door 5. At this time, the cylinder bar connecting portion 22 on the back side of the thumb turn body 20 and the tip end portion of the cylinder bar 12 are connected, and the front end portion of the coupling piece portion 32 of the spacer 3 is fitted into the concave groove 24 on the back side of the thumb turn body 20, The back edge of the thumb turn body 20 is brought into contact with the side surface of the door 5. As a result, the thumb turn 2 is temporarily fixed to the front side of the spacer 3, and the screw hole 23 of the thumb turn 2 is aligned with the female screw hole of the mounting post 11 via the guide hole 33 of the spacer 3.

Further, the mounting screw 6 is inserted through the screw hole 23 of the thumb turn 2 and screwed into the female screw hole of the mounting post 11. As a result, the thumb turn 2 is connected to the cylinder 1 via the spacer 3, and the thumb turn 2 and the cylinder 1 are sandwiched and fixed to the door 5.

As described above, in the lock mounting structure according to the embodiment, the spacer 3 is provided on the back side of the thumb turn 2 and the mounting column 11.
By interposing in the gap between the tip and the tip, the spacer 3 and the tip of the mounting post 11 ensure an appropriate distance between the cylinder 1 and the thumb turn 2 with respect to the thickness of the door 5. Therefore, the door 5 to which the cylinder 4 and the thumb turn 5 are mounted by excessively tightening the mounting screw 6.
Therefore, distortion such as dents does not occur around the mounting openings 51, 52. The spacer 3 has a guide hole 33.
Since the spacer 3 can be temporarily fixed to the tip of the mounting pillar 11 by engaging the wide-diameter portion 33a with the tip of the mounting pillar 11, the spacer 3 can be easily aligned with the mounting pillar 11. Further, by engaging the recessed groove 24 formed on the back side of the thumb turn 2 with the front end of the spacer 3, the spacer 3 and the thumb turn 2 can be aligned with each other, and the thumb turn 2 can be attached to the door 5. Since it can be temporarily fixed to the position of the portion 52, the mounting work of the mounting screw 6 becomes easy.

[0023]

As described above, according to the lock mounting structure of the present invention, the spacer and the tip of the mounting column ensure an appropriate distance between the cylinder and the thumb turn with respect to the thickness of the door. The excessive tightening of the screws does not cause distortion such as a dent in the mounting position of the cylinder or thumb turn on the door.

In the present invention, the spacer is provided with a guide hole through which the mounting screw is inserted, and a wide diameter portion is formed on the back side of the guide hole, into which the tip of the mounting pillar abuts against and is fitted. When the mounting screws are screwed to the mounting posts, the mounting screws are guided by the guide holes provided in the spacers without being displaced from the thumb turn screw holes to the mounting columns, so that the mounting work is easy. Will be things. In addition, when interposing the spacer, the tip of the mounting column is abutted against the wide diameter portion formed on the back side of the guide hole so that the spacer fits into the tip of the mounting column. The spacers can be temporarily fixed, and the spacers can be easily aligned.

Further, in the present invention, when the engaging portion which engages with the front end of the spacer is formed on the back side of the thumb turn, the front end of the spacer is formed on the back side of the thumb turn. By engaging the engaging portion with each other, the spacer and the thumb turn can be aligned with each other, and the thumb turn can be temporarily fixed to a predetermined position of the door, so that the attaching work of the attaching screw can be easily performed.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a lock mounting structure according to an embodiment of the present invention.

FIG. 2 is an exploded cross-sectional view showing the lock mounting structure according to the above embodiment.

FIG. 3 is a view showing a spacer used in the same embodiment, (A) is a rear view, (B) is a partially cutaway side view, and (C) is an angle with (B). FIG.

FIG. 4 is a view showing a thumb turn used in the embodiment, in which (A) is a front view and (B) is a back view.

FIG. 5 is a cross-sectional view showing a lock mounting structure according to a conventional example.

[Explanation of symbols]

 1 cylinder 2 thumb turn 3 spacer 4 lock body 5 door 6 mounting screw 11 mounting post 23 screw hole

Claims (3)

[Claims] 1. A lock main body which is inserted into a side end portion of a door made of a thin metal plate, and a pair of cylinders and thumb turns which are sandwiched and fixed to the door from both sides of the door at an installation position of the lock main body. The cylindrical mounting column that has a female screw hole that projects from the back of the cylinder and has an opening at the tip is passed through the lock body, and the mounting screw is inserted through the screw holes that penetrate the front and back of the thumb turn. A lock mounting structure in which the cylinder and the thumb turn are connected by being screwed into a hole, wherein a spacer is interposed in a gap between the back side of the thumb turn and the tip of the mounting column. 2. A guide hole through which the mounting screw is inserted is provided in the spacer, and a wide diameter portion is formed on the back side of the guide hole so that the tip end portion of the mounting pillar is fitted and abuts and engages in the back. The lock attachment structure according to claim 1, wherein the lock attachment structure is provided. 3. The lock mounting structure according to claim 1 or 2, wherein an engaging portion that engages with a front end portion of the spacer is formed on a back side of the thumb turn.