JP4149954B2 - Cylinder lock fastener - Google Patents

Description

  The present invention relates to a fastener for a cylinder lock that can be easily attached with one touch by being inserted into a through-hole of a lock attachment portion in a door or the like of an article storage box.

  Various methods have been proposed in the past for attaching a cylinder lock to a lock attachment portion such as a door of an article storage box. For example, as shown in FIG. 5, a thread groove 101 is formed on the circumferential surface of the body portion 100 of the cylinder lock 1, and the body portion 100 is inserted into a through hole P formed in the lock mounting portion. The flange portion 102 formed at one end is engaged with the periphery of the through hole P, and the nut 103 is screwed into the thread groove 101 of the body portion 100 protruding to the opposite side of the through hole P. There is a method of fixing by fixing the lock attachment portion. Further, instead of using the nut 103, a lock is fixed from the back side using a small screw, a clip is fitted into a slit formed in the body portion 100 of the cylinder lock 1, and the cylinder lock is fixed. 1 body part 100 is provided with a cut and raised spring, and the body part 100 is inserted into the through hole P of the lock attachment part from one side so that the compressed cut and raised spring is expanded on the opposite side of the through hole P. There is also a method of locking and fixing by returning.

Among the mounting methods of the cylinder lock 1 described above, as a specific configuration in the case where the body portion 100 of the cylinder lock 1 is cut and raised and a spring is attached, there has been conventionally disclosed in Patent Document 1. That is, as shown in FIG. 6, the cylinder lock 1 includes an outer cylinder 200 in which a joining rod 201 is formed on the head, and an inner cylinder 202 that is rotatably fitted in the outer cylinder 200. A latch 203 is fixed to the rear portion of 202 by a screw, and among these, a ring 205 formed by connecting spring pieces 204 for stoppers having high resilience at two opposite positions is fitted to the outer cylinder 200. It is worn. When the cylinder lock 1 is attached, when the cylinder lock 1 is inserted into the through hole P of the lock attachment portion from the rear side of the outer cylinder 200 and the joining rod 201 comes into contact with the periphery of the through hole P, a spring piece 204 is formed. The pair of locking oblique sides 206 are brought into contact with the edge of the through hole P, and the cylinder lock 1 is fixed by the elastic force thereof.
No. 6-8209

  However, the conventional fastener shown in FIG. 5 requires time-consuming work using a tool for operating the nut 103. Further, even in the case disclosed in Patent Document 1, a mechanical member for fitting a ring 205 formed by connecting spring pieces 204 having strong resilience at two opposite positions to the outer cylinder 200 is provided. Caulking work using tools is required. Furthermore, the spring piece 204 is formed with a protrusion-shaped locking oblique side 206 that is cracked into two pieces, and is structured to support the cylinder lock 1 at four places including the opposite direction. Since the distance between the tips is not large, there is a possibility that even if there is a slight difference in the plate thickness of the lock mounting portion, the tension force is insufficient and the support state by the spring piece 204 may be wobbled. Had.

  Therefore, the present invention has been made to solve the conventional problems as described above, and it is possible to ensure sufficient tension even if there is a slight difference in the plate thickness of the lock mounting portion. In addition, the cylinder lock can be stably supported and fixed to the lock mounting part, and the cylinder lock can be easily attached to the lock mounting part without using tools such as nut tightening and caulking. An object of the present invention is to provide a fastener for a cylinder lock that can be removed.

In order to solve the above-described problems, in the present invention, an outer cylinder having a flange portion formed on the head, an inner cylinder that is rotatably fitted in the outer cylinder, and a rear portion of the inner cylinder are fixed. And a fastener formed by connecting a spring piece for a stopper to the lock mounting portion that is fitted to the outer cylinder and is slightly opened outward at a plurality of opposite positions. The tool is inserted and held on both the upper and lower surfaces and the left and right side surfaces of the outer cylinder by sandwiching the outer cylinder from both sides with the two pieces and then being locked by fixing means provided on the outer cylinder. An attachment frame portion formed in an annular halved shape is provided , and the attachment frame portion has the spring pieces connected to the flange side of the center surface portion and the left and right side portions, respectively .

And the said spring piece shall be formed so that length may oppose every two pieces. In addition, the fixing means is a triangle protruding in a pair of upper and lower sides at a symmetrical position of the outer cylinder so as to be engaged with a pair of left and right square hole portions formed on opposite side surfaces of the mounting frame. It can be due to beveled projections.

  Further, the outer cylinder is provided with a groove portion for fitting and holding the attachment frame portion so that the spring piece does not move to the rear portion, and the groove portion has a step portion equal to or less than the plate thickness of the lock attachment portion. be able to.

  In the fastener of the cylinder lock according to the present invention configured as described above, the fastener provided with the mounting frame portion formed in the annular half-shape sandwiches the outer cylinder from both sides with these two pieces. By being locked by the fixing means provided on the outer cylinder, the fastener can be fixed to the cylinder lock without using a tool for tightening the nut or caulking.

  In addition, the spring piece for the stopper, which is slightly opened outward at a plurality of opposed locations of the mounting frame portion arranged opposite to the outer peripheral surface of the outer cylinder, inserts the cylinder lock into the through hole of the lock mounting portion from the rear side of the outer cylinder. When the flange is brought into contact with the peripheral edge of the through hole, the tip of the spring piece protruding to the opposite side of the through hole while being compressed is elastically opened and locked to the hole edge side surface of the through hole. The cylinder lock is firmly fixed to the through hole by the generated force.

  According to the present invention, even if there is a slight difference in the plate thickness of the lock mounting portion, it is possible to ensure a sufficient tension force and to stably support and fix the cylinder lock to the lock mounting portion. In addition, the cylinder lock can be easily attached to or detached from the lock attachment portion without using a tool for tightening the nut or caulking. In particular, because the two adjacent springs are stretched in the cross direction by a plurality of spring pieces having different lengths, even if there is a slight difference in the plate thickness, the spring pieces of at least one of the lengths in the vertical and horizontal directions are stretched. Thus, the cylinder lock itself is stably fixed.

  Note that the reference numerals added in the means for solving the above-described problems and the effects of the invention are given for easy reference to the parts showing the components shown in the drawings. The present invention is not limited to the structure / shape indicated by the reference numeral.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. Reference numeral 1 shown in the figure is a cylinder lock used as a lock for a door of an article storage box, for example. As shown in FIGS. 1 and 2, the lock 1 has an outer cylinder 3 having a flange portion 2 formed on the head, and is rotatably fitted in the outer cylinder 3 and has a keyway 4A on the head. An inner cylinder 4 and a latch 5 fixed to the rear part of the inner cylinder 4 are provided. Further, the outer cylinder 3 of the cylinder lock 1 is formed in a vertically long octagonal shape corresponding to a slightly vertically long and substantially octagonal through-hole P (shown in FIG. 3) formed in the lock mounting portion.

  In addition, it is provided with a fastener 8 formed by connecting a stopper spring piece 6 that is fitted to the outer cylinder 3 and that is slightly opened outward at a plurality of opposed locations, thereby allowing a through-hole of a lock mounting portion such as a door. The cylinder lock 1 inserted in P is in a state of being prevented from being pulled out and fixed firmly. That is, as shown in FIG. 1 and FIG. 2, the fastener 8 is held by the fixing means 9 (described later) provided on the outer cylinder 3 after sandwiching the outer cylinder 3 from both sides with the two fasteners. Each is provided with a mounting frame portion 7 formed in an annular half-shape.

  More specifically, as shown in FIG. 4, the mounting frame portion 7 includes, for example, a horizontal central surface portion 7 </ b> A and a central surface portion 7 </ b> A according to the shape of the upper and lower half of the outer cylinder 3 formed in a vertically long octagonal shape. The left and right inclined surface portions 7B extending from the left and right sides of the left and right sides and the right and left side surface portions 7C extending from the left and right sides of the left and right inclined surface portions 7B are formed, and the left and right side surface portions 7C of the two mounting frame portions 7 are matched with each other. As a result, the whole is formed into a vertically long octagonal ring.

The spring pieces 6 are formed so as to protrude adjacent to a state where the two spring pieces 6 are slightly opened outward from the central surface portion 7A, and are formed to protrude so that one is slightly opened outward from each of the left and right side surface portions 7C. The opening angle of the spring piece 6 is inclined outward by, for example, an angle of about 5 ° with respect to the respective surfaces of the central surface portion 7A and the left and right side surface portions 7C. Moreover, the length of these spring pieces 6 is formed so as to face each other. For example, one length of the spring pieces 6 adjacent to each other in the central surface portion 7A is L (for example, 9.8 mm), and the other length is 1 (for example, 9.5 mm) slightly smaller than L. Furthermore, the length of one spring piece 6 of the left and right side surface portion 7C is set to L as described above, and the other length is set to l slightly smaller than L as described above. Since the length of the eight spring pieces 6 is divided into two types in this way, at least four can be stretched even if there is a slight difference in the plate thickness of the lock mounting portion. Can be stably supported and fixed.

  As shown in FIGS. 1 and 3, the outer cylinder 3 is formed with a groove portion 10 for fitting and holding the mounting frame portion 7 so that the spring piece 6 of the attached fastener 8 does not move to the rear portion. It is. That is, the groove portion 10 is formed on the entire peripheral surface of the outer cylinder 3 so that the central surface portion 7A, the left and right inclined surface portions 7B, the left and right side surface portions 7C, and the spring pieces 6 of the mounting frame portion 7 are fitted, and of these, the spring pieces Only the tip of 6 is slightly opened outward from the groove 10. Moreover, the groove part 10 has a step part 11 smaller than the plate thickness of the lock attachment part. That is, the width and the depth of the step portion 11 forming the groove portion 10 in the outer cylinder 3 continuously provided on the back side of the flange portion 2 are formed smaller than the plate thickness of the lock attachment portion (FIG. 3 ( c)).

  The fixing means 9 is configured by triangular slope-shaped protrusions 12 protruding in a pair of upper and lower positions at left and right symmetrical positions in the groove portion 10 of the outer cylinder 3 where the left and right side surface portions 7C of the mounting frame portion 7 are in contact with each other. The protrusions 12 are engaged and held in the square hole portions 13 formed at the approximate centers of the left and right side surface portions 7C at opposite ends of the mounting frame portion 7, respectively.

  Next, a procedure for attaching the cylinder lock 1 to the lock attaching portion will be described. First, after attaching the mounting frame portions 7 to each other so that the groove portion 10 in the outer cylinder 3 of the cylinder lock 1 is sandwiched from both surfaces by the two fasteners 8, the mounting frame portion 7 is fixed by the fixing means 9 provided in the groove portion 10. Keep locked. The cylinder lock 1 with the fastener 8 attached is inserted into the through hole P of the lock mounting part from the rear side of the outer cylinder 3 so that the flange part 2 comes into contact with the periphery of the through hole P and at the same time penetrates while being compressed. The tip of the spring piece 6 protruding to the opposite side of the hole P is opened by elastic restoring force and locked to the hole edge side surface of the through hole P, and the cylinder lock 1 is firmly fixed to the through hole P by its elastic force. Is done.

  The cylinder lock 1 is formed in a vertically long octagonal shape as a whole corresponding to the slightly vertically long and substantially octagonal through-hole P formed in the lock mounting portion. The shape of the cylinder lock 1 is as follows. The present invention is not limited in any way, and the whole may be formed in a cylindrical shape corresponding to the cylindrical through hole P formed in the lock mounting portion. The shape of the part is formed in a substantially semicircular frame shape.

It is a disassembled perspective view which shows the best form for implementing this invention. It is a perspective view which shows the state which similarly assembled | attached the fastener to the cylinder lock. (A) is a side view of a state where the fastener is assembled to the cylinder lock, (b) is a front view showing the through hole P of the lock attachment portion, and (c) is a cylinder through the fastener in the through hole of the lock attachment portion. It is a partially cutaway sectional view showing a state where a lock is fixed. 1A and 1B show one form of a fastener, wherein FIG. 3A is a plan view, FIG. 3B is a front view, FIG. 3C is a left side view, FIG. 3D is a right side view, and FIG. It is a partially cutaway sectional view showing a conventional example. It is a partially notched cross-sectional view showing another conventional example.

Explanation of symbols

P Through-hole 1 Cylinder lock 2 Flange part 3 Outer cylinder 4 Inner cylinder 5 Latch 6 Spring piece 7 Mounting frame part 8 Fixing means 9 Fixing means 10 Groove part 11 Step part 12 Protrusion 13 Square hole part

Claims (5)

An outer cylinder having a flange portion formed on the head, an inner cylinder rotatably fitted in the outer cylinder, a latch fixed to the rear part of the inner cylinder, and a plurality of opposed and fitted to the outer cylinder And a stopper formed by connecting a spring piece for a stopper to the lock attachment portion that is slightly opened to the outside, and the two clamps sandwich the outer cylinder from both sides. And an attachment frame portion formed in an annular halved shape so as to be fitted and held on both the upper and lower surfaces and the left and right side surfaces of the outer cylinder by being locked to fixing means provided on the outer cylinder. The mounting frame part is a fastener for a cylinder lock, characterized in that the spring pieces are continuously provided on the flange side of the center surface part and the left and right side parts .   The fastener of a cylinder lock according to claim 1, wherein the spring pieces are formed so as to face each other every two pieces.   The fixing means has a triangular slope shape projecting as a pair of upper and lower symmetrically on the left and right sides of the outer cylinder so as to be engaged with a pair of left and right square hole portions formed on opposite side surfaces of the mounting frame. The fastener for a cylinder lock according to claim 1 or 2, wherein the fastener is a protrusion.   The fastener of the Linda lock in any one of Claims 1 thru | or 3 which formed the groove part which inserts and hold | maintains an attachment frame part so that a spring piece may not move to a rear part at an outer cylinder.   The fastener for a Linda lock according to claim 4, wherein the groove portion has a step portion equal to or less than a plate thickness of the lock attachment portion.

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