JP3235484U - Face lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a surface lock in which a cylinder drives a dead bolt more smoothly. SOLUTION: This is a surface lock for locking and unlocking a door, so that a lock case, a dead bolt to which a head portion can appear and disappear in the lock case, and a part of the lock case are exposed. A cylinder 4 attached to the door, a cylinder cam 6 that rotates in conjunction with the cylinder, and a dead bolt operating mechanism 5 that engages with the dead bolt are provided, and the dead bolt operating mechanism is interlocked with the cylinder cam. A surface lock that automatically rotates until it is locked or unlocked when it is rotated to a certain angle. [Selection diagram] FIG. 5

Description

The present invention relates to a surface lock.

Generally, a surface lock is provided with a dead bolt, and the door is locked when the dead bolt protrudes and fits into a receiving hole of a metal fitting provided in the door frame. As a lock provided with a dead bolt, for example, "a bottomless casing formed by bending a flat cross-shaped flat plate and having a through hole on one side surface, and an inner cylinder mounted on the casing and protruding into the casing". A lock having a cam protruding from the end, a base having a moving groove having a size matching the casing cavity and allowing the cam to move, and a base mounted on the base and having the transparency at one end thereof. A dead bolt having a head that can protrude from the hole to the outside of the casing and having a sliding hole through which a cam can enter and slide is partially accommodated, and a dead bolt having a size matching the casing cavity and accommodating the dead bolt. It consists of a deadbolt guide having a concave groove and a bottom plate having an opening of the casing closed and a rising edge, and the base and the bottom plate are pressed against the deadbolt guide, and these three are in contact with the casing cavity. , The bottom plate and the casing are fixed to each other by screws. ”A high-strength deadbolt device has been proposed (see claim 1 of Patent Document 1).

Jikkenhei 6-79973 Gazette

A lock provided with a conventional dead bolt has a structure in which the end of a cylinder cam fixed to the cylinder is related to the engaging portion of the dead bolt as in the dead bolt device, or the cam is dead via a pin or a leaf spring. Since the structure pushes the bolt, the reaction force of the dead bolt is applied to this cam almost directly, so a force is required to turn the key, and it may not operate smoothly. In addition, the contact portion between the cam and the cylinder may be worn to generate chips, which may affect the operation of the cylinder, or the lubricating oil may become dirty and malfunction.

It is an object of the present invention to solve at least one of the above problems and to provide a surface lock in which the dead bolt is driven by a cylinder more smoothly.

In order to solve at least one of the above-mentioned problems, the imposition lock according to one surface of the present invention is an imposition lock for locking and unlocking a door, and is a lock case and a head portion in the lock case. A dead bolt that can be mounted so that it can appear and disappear, a cylinder that is mounted so that a part of it is exposed in the lock case, a cylinder cam that rotates in conjunction with the cylinder, and a dead bolt operating mechanism that engages with the dead bolt. When the deadbolt operating mechanism rotates to a certain angle in conjunction with the cylinder cam, the deadbolt operating mechanism automatically rotates until it is locked or unlocked.

In the surface lock, the dead bolt actuating mechanism is hooked on an actuating cam, an actuating pin fixed to the actuating cam, a support pin fixed to the lid plate of the lock case at one end, and the actuating end at the other end. It is equipped with an actuating spring, which is hooked on a support pin fixed to a cam.

In the surface lock, the locking pin that locks the rotation of the deadbolt operating mechanism is attached to the cylinder.

In the surface lock, the actuating cam of the deadbolt actuating mechanism is attached to the cylinder.

In the surface lock, the actuating cam of the deadbolt actuating mechanism has an arc-shaped notch along the outer circumference of the cylinder.

In the surface lock, the cylinder cam has an arc-shaped notch along the outer circumference of the cylinder.

In the surface lock, the dead bolt has a guide groove parallel to the retracting direction and an operating groove perpendicular to the retracting direction that engages with the dead bolt actuating mechanism.

The surface-mounted lock includes a lid plate unit including a lid plate that covers one surface of the lock case, and the lid plate unit includes the cylinder and the dead bolt as a driving unit for driving the dead bolt on the lid plate. The actuating mechanism and the cylinder cam are attached.

The surface lock includes a case body unit including a box-shaped case body having an opening on one side, and the case body unit has the dead bolt attached to the case body.

According to the invention of the present application, it is possible to provide a surface lock in which the drive of the dead bolt by the cylinder becomes smoother.

Issues, configurations and effects other than those described above will be clarified by the following description of the embodiments.

It is an external view which shows an example of the imposition lock which concerns on this application, (a) the front view, (b) the left side view. It is a figure which shows the case main body unit, (a) the left side view, (b) the front view. It is a front view of the constituent member of a dead bolt. It is a figure which shows the assembly of a lid plate and a cylinder, (a) the back view after assembly, (b) the right side view of the constituent member before assembly. It is a figure which shows the lid plate unit, (a) the back view after assembly, (b) the right side view of the constituent member before assembly. It is a rear view of the actuating cam of a deadbolt actuating mechanism. It is a rear view of the actuating spring of a deadbolt actuating mechanism. It is a rear view of a cylinder cam. It is a rear view of the outer cylinder of a cylinder. It is a figure which shows the operation of the dead bolt actuation mechanism, (a) a state which rotates in conjunction with a cylinder cam, (b) a state which rotates until it locks automatically. It is a figure which shows the engagement of the dead bolt with the actuating pin of a dead bolt actuation mechanism, and is (a) an unlocked state, (b) a locked state. It is a figure which shows the operation of the dead bolt actuation mechanism, (a) a state which rotates in conjunction with a cylinder cam, (b) a state which rotates until it is automatically unlocked.

Hereinafter, examples of embodiments of the present invention will be described with reference to the drawings. The components common to the following embodiments (and modifications) may be designated by the same reference numerals as those mentioned above and the description thereof may be omitted. In addition, when referring to the shape, positional relationship, etc. of the components, etc., unless otherwise specified or when it is considered that it is not clearly the case in principle, those that are substantially similar to or similar to the shape, etc. Shall include.

FIG. 1 is an external view showing an example of a surface lock according to the present application, which is (a) a front view and (b) a left side view. In each figure, X is the left-right direction (horizontal direction, -X is the left, + X is the right), Y is the vertical direction (vertical direction, -Y is the lower direction, + Y is the upper direction), and Z is the front-back direction (depth). The direction, −Z is backward, + Z is forward) (same in FIG. 2 and below).

The surface lock 100 is a locking device for locking and unlocking the door. The doors here are not limited to those that open and close the doorways of houses and rooms, but also broadly include those that open and close shelves, warehouses, boxes, and the like.

The surface-mounted lock 100 includes a lock case, a dead bolt 3 to which a head portion 30 is attached to the lock case so as to be able to appear and disappear, and a cylinder 4 to be attached so that a part of the head portion 30 is exposed to the lock case. Further, as will be described later, the surface lock 100 has a cylinder cam 6 that is attached to the cylinder 4 and rotates in conjunction with the cylinder 4, and a dead bolt operating mechanism 5 that engages with the dead bolt 3. When the deadbolt operating mechanism 5 is rotated to a certain angle in conjunction with the cylinder cam 6, it automatically rotates until it is locked or unlocked (see FIG. 4 and below).

The lock case includes a case main body 1 forming the main body and a lid plate 2 covering one surface. The case body 1 has a box shape having an opening on one side. As an example, the case body 1 includes a rectangular bottom wall on the back side and a peripheral wall having left and right walls and upper and lower walls surrounding the edge of the bottom wall, and the front side is completely open. The case body 1 has notches 101 on each of the left wall, the right wall, the upper wall, and the lower wall, which are notched by the thickness of the lid plate 2. The case body 1 is formed by, for example, bending a plate material.

The lid plate 2 is a plate-shaped member that closes the opening of the case body 1. As an example, the lid plate 2 covers the entire front surface of the case body 1. Here, the lid plate 2 is substantially the same size as the bottom wall of the case body 1, and has L-shaped notches 201 notched at four corners as much as the wall thickness of the case body. As an example, the lid plate 2 is made of the same plate material as the case body 1.

The lid plate 2 is detachably fastened to the case body 1 by a fastening member 91 of a screw or the like (for example, a countersunk machine screw or the like). Specifically, the lid plate 2 is provided with a hole (for example, a countersunk hole) 202 for passing the fastening member 91 (see FIG. 4A), and the case body 1 penetrates the corresponding position of the bottom wall. A hole is provided and the pillar member 102 is fixed (see FIG. 2B). The column member 102 has a thread on the inner peripheral surface for screwing with the fastening member 91.

The surface lock 100 is provided with through holes 203 at each of the four corners of the lid plate 2, and through holes 103 are provided from the back surface at the corresponding positions of the four corners of the bottom wall of the case body 1. , Attached to the door (not shown) from the back by a fastening member (not shown).

As an example, the surface lock 100 is configured by fastening two units, a lid plate unit 100A having a drive unit for driving a dead bolt and a case body unit 100B having a dead bolt, with a fastening member 91. In the lid plate unit 100A, a cylinder 4, a dead bolt operating mechanism 5, and a cylinder cam 6 are attached to the lid plate 2 as a driving unit for driving a dead bolt. In the case body unit 100B, the dead bolt 3 is attached to the case body 1. With such a configuration, assembly can be simplified and the drive unit can be easily confirmed. For convenience of explanation, the case body unit 100B will be described first below.

FIG. 2 is a view showing a case main body unit, which is (a) a left side view and (b) a front view. FIG. 3 is a front view of the components of the dead bolt.

As shown in FIG. 3, as an example, the dead bolt 3 is configured by stacking a stacking plate 32 on a main body plate 31. The main body plate 31 has a rectangular large portion 311 which is thicker than the lid plate 2 and has a rectangular narrow portion 312 whose vertical width is smaller than that of the large portion 311. A shoulder portion 313 extending perpendicularly to the infestation direction of the head portion 30 is formed between the large portion 311 and the narrow portion 312. The main body plate 31 is arranged in the case main body 1 so that the narrow portion 312 faces to the left, and the shoulder portion 313 forms the left end of the large portion 311. The narrow portion 312 is provided with a through hole 314 at each of the four corner portions.

The stacking plate 32 is rectangular and is preferably made of the same material as the body plate 31. The stacking plate 32 has the same size as the narrow portion 312, is provided with a through hole 321 corresponding to the through hole 314 of the narrow portion 312, is caulked with a cylindrical pin, and is fastened to the narrow portion 312. Since the head portion 30 of the dead bolt 3 is composed of the two plates of the overlapping plate 32 and the narrow portion 312 in this way, the strength is higher than that of one plate.

The dead bolt 3 has a guide groove 315 extending parallel to the infestation direction (X direction) of the head portion 30 and an operating groove 316 extending perpendicularly to the infestation direction in the large portion 311. The guide groove 315 and the working groove 316 are preferably rounded rectangles having two semicircular sides and two long sides, and penetrate the large portion 311 in the plate thickness direction. As an example, the guide groove 315 is arranged below the working groove 316, and the center of the leftmost semicircle is horizontally aligned with the center of the semicircle of the working groove 316. The long side of the guide groove 315 has substantially the same length as the haunting working distance of the dead bolt.

As shown in FIG. 2A, the case body 1 has a square hole 104, which is a rectangular through hole, on the left wall. The square hole 104 has the same shape as the side surface of the head portion 30, and has a size such that the head portion 30 is smoothly inserted and the shoulder portion 313 is hooked on the left wall of the case body 1.

As shown in FIG. 2B, as an example, the length of the dead bolt 3 in the horizontal direction is smaller than that of the case body 1 by the wall thickness of the case body 1, and the head portion 30 is immersed in the case body 1. In the immersed state, the left end surface of the head portion 30 substantially coincides with the outer surface of the left wall of the case body 1, and the right end surface abuts on the inner surface of the right wall.

A guide pin 8 that engages (engages) with the guide groove 315 of the dead bolt 3 is fixed to the bottom wall of the case body 1. Although detailed illustration is omitted, the guide pin 8 is a columnar member having a diameter slightly smaller than the semicircular side of the guide groove 315, and has a ring-shaped groove (a ring-shaped groove recessed from the outer peripheral surface) on the outer peripheral surface. It has a small diameter portion at one end. The bottom wall of the case body 1 is provided with a through hole for attaching the guide pin 8.

As an example, the case body unit 100B first inserts the dead bolt 3 into the case body 1 so that the vicinity of the left end of the head portion 30 is inserted into the square hole 104 and the back surface is in contact with the inner surface of the bottom wall. Next, the guide pin 8 is fixed to the bottom wall of the case body 1 after passing through the guide groove 315 at the small diameter portion, and a retaining ring (for example, a clip type stopper) for preventing the guide pin from coming off is inserted into the ring-shaped groove on the outer peripheral surface protruding from the guide groove 315. Attach a ring, etc.) (not shown). When the dead bolt 3 is pushed in the case body unit 100B, the guide pin 8 relatively moves in the guide groove 315, and the head portion 30 appears and disappears from the case body 1, so that the operation of the dead bolt 3 can be confirmed.

FIG. 4 is a view showing an assembly of a lid plate and a cylinder, which is (a) a rear view after assembly and (b) a right side view of components before assembly. FIG. 9 is a rear view of the outer cylinder of the cylinder.

The lid plate unit 100A (see FIG. 5A) is an assembly of the lid plate 2, the cylinder 4, the dead bolt operating mechanism 5, and the cylinder cam 6, but here, first, the lid, which is an intermediate assembly thereof. An assembly of a plate and a cylinder will be described.

As shown in FIG. 4B, the cylinder 4 has an outer cylinder 41 and an inner cylinder 42. Regarding the cylinder 4, known techniques can be appropriately used for configurations other than the outer cylinder 41 and the inner cylinder 42 shown in the figure, for example, outer pins, inner pins, and the like, and description thereof will be omitted here.

The inner cylinder 42 is provided with a ring-shaped groove 424 on the outer peripheral surface of a portion near the rear end of the main body portion 420, and a separation portion 422 is formed across the ring-shaped groove 424. Further, the inner cylinder 42 has an end portion 423 at the rear end of the separation portion 422, which has a smaller outer circumference than the separation portion 422. The end portion 423 is a rounded rectangle having two arc sides and two long sides in rear view (see FIG. 4A). The maximum width between the arc sides of the end portion 423 is smaller than the diameter of the separation portion 422. The end portion 423 is provided with a ring-shaped groove 425 at a portion substantially in the center or slightly closer to the front end. The terminal portion 423 has a front stage portion and a rear stage portion formed by the ring-shaped groove 425. The inner cylinder 42 has a key insertion hole 421 inside. The key insertion hole 421 may penetrate the entire inner cylinder 42 in the front-rear direction as shown in the figure, or may be closed only on the back surface side, that is, at the rear end of the end portion 423.

The outer cylinder 41 has a short cylinder-shaped small diameter portion 411 having a smaller outer circumference than the main body portion 410 at the rear end of the main body portion 410. The outer cylinder 41 has an accommodating hole 412 that penetrates in the front-rear direction (axial direction) as a whole, and the inner cylinder 42 is inserted into the accommodating hole 412 and is rotatably accommodated. In the cylinder 4, the inner cylinder 42 is incorporated into the outer cylinder 41, and then the outer cylinder 41 is fastened to the lid plate 2 by the fastening member 92. First, the outer cylinder 41 may be fastened to the lid plate 2 by the fastening member 92, and then the inner cylinder 42 may be incorporated into the outer cylinder 41.

As shown in FIG. 9, the outer cylinder 41 is provided with four bottomed holes on the rear end surface of the main body 410. The four bottomed holes are arranged at equal intervals on a virtual circle concentric with the small diameter portion 411, and form an angle of 45 degrees with respect to the horizontal line A and the vertical line B passing through the center of the outer cylinder 41. Of the four bottomed holes, the bottomed hole at a position 45 degrees clockwise with respect to the horizontal line A is a locking pin hole 413, and the locking pin 7 is inserted and fixed. The remaining three bottomed holes are fastening holes 414, and threads are formed on the inner peripheral surface, and the fastening member 92 is screwed.

Returning to FIG. 4B, the locking pin 7 is preferably attached to the outer cylinder 41 in advance so that the protruding height is substantially the same as the small diameter portion 411. Although the details will be described later, the locking pin 7 is a member for locking the rotation of the dead bolt operating mechanism 5. By positioning and attaching the locking pin 7 to the cylinder 4, the alignment of the actuating cam 51 and the cylinder cam 6, which will be described later, becomes easy.

Corresponding to the cylinder 4, the lid plate 2 is provided with a cylinder hole 204 for passing the small diameter portion 411 at substantially the center. Further, although not shown, four through holes corresponding to the locking pin holes 413 and the fastening holes 414 are provided around the cylinder holes 204 at equal intervals on a virtual circle concentric with the cylinder holes 204. In each figure described later, the fastening member 92 and the fastening hole 414 may be omitted.

As shown in FIG. 4A, after assembly, the small diameter portion 411, the separation portion 422, and the terminal portion 423 of the cylinder 4 project from the back surface of the lid plate 2 (see also FIG. 5b). Further, the locking pin 7 protrudes from the back surface of the lid plate 2.

5A and 5B are views showing the lid plate unit, which are (a) a rear view after assembly and (b) a right side view of the constituent members before assembly. FIG. 6 is a rear view of the actuating cam of the deadbolt actuating mechanism, and FIG. 7 is a rear view of the actuating spring. FIG. 8 is a rear view of the cylinder cam. FIG. 10 is a diagram showing the operation of the deadbolt operating mechanism, in which (a) the state of rotating in conjunction with the cylinder cam and (b) the state of rotating until the dead bolt is automatically locked. FIG. 11 is a diagram showing the engagement between the working pin of the deadbolt operating mechanism and the deadbolt, which is (a) an unlocked state and (b) a locked state. FIG. 12 is a diagram showing the operation of the deadbolt operating mechanism, in which (a) a state of rotating in conjunction with the cylinder cam and (b) a state of automatically rotating until unlocking.

The lid plate unit 100A is an assembly in which the deadbolt operating mechanism 5 and the cylinder cam 6 are further attached to the above-mentioned assembly of the lid plate and the cylinder.

The dead bolt actuating mechanism 5 is a mechanism that engages with the dead bolt 3, more specifically, the actuating groove 316 of the dead bolt 3 (moves relative to each other in the actuating groove 316) to cause the dead bolt 3 to appear and disappear. .. The deadbolt actuating mechanism 5 is hooked on an actuating cam 51, an actuating pin 53 fixed to the actuating cam 51, and a first support pin 54 having one end fixed to the lid plate 2 and the other end fixed to the actuating cam 51. It comprises an actuating spring 52 that is hung on the second support pin 55.

As shown in FIG. 6A, the actuating cam 51 has a mating portion 510 for mating with the small diameter portion 411 of the cylinder 4 in the center. The inner circumference of the mating portion 510 is slightly larger than the outer circumference of the small diameter portion 411 so that the operating cam 51 can rotate smoothly. The portion of the actuating cam 51 that surrounds the mating portion 510 is composed of a base portion 511, a notch portion 512, and a convex portion 513. As shown by using the virtual circle C in FIG. 6B, the notch 512 has a part of the annular base 511 notched in the inner circumference of the mating portion 510, in other words, in the shape of an arc along the outer circumference of the cylinder 4. It can be said that the convex portion 513 is formed so as to bulge in the radial direction from a part of the base portion 511.

The notch 512 is an end where the locking end 514 at one end abuts with the locking pin 7 in the locked state, and the unlocking end 515 at the other end is the end where the unlocking end 515 abuts with the locking pin 7 in the unlocked state. In FIG. 6, the actuating cam 51 is shown in a state of being rotated to the locked state. As an example, in this state, as shown in FIG. 6B, the locking end 514 is the radius of the locking pin 7 with respect to the vertical line B passing through the center O of the mating portion 510 (the center O of the cylinder 4). The position where the substantial angle α (subtracted) is 45 degrees, and the unlocking end 515 is the position where the substantial angle β (subtracting the radius of the locking pin 7) with respect to the vertical line B is 65 degrees. It is in. In other words, the substantial central angle of the notch 512 is 110 degrees, and the actuating cam 51 rotates 110 degrees at the time of locking and unlocking, respectively.

The convex portion 513 is provided with a circular hole 516 for fixing the operating pin 53 that engages with the operating groove 316 of the dead bolt 3 and a circular hole 517 for fixing the second support pin 55. The circular hole 516 is provided so that the center is inside the virtual circle C, and the distance from the center O is equal to or close to the distance between the locking pin 7 and the center O. The circular hole 517 is provided so that the center is outside the virtual circle C. Further, the circular hole 516 is located on the horizontal line A whose center passes through the center O of the mating portion 510, and the circular hole 517 is located at a position where the center forms an angle θ in the counterclockwise direction with respect to the horizontal line A. The angle θ is, for example, 35 degrees.

As shown in FIG. 5B, an actuating pin 53 and a second support pin 55 are assembled and fixed in advance to the actuating cam 51. The actuating pin 53 is a columnar member, and the small diameter portion at one end is inserted into the circular hole 516 and fixed.

As shown in FIG. 11, the working pin 53 is inserted into the working groove 316 of the dead bolt 3, and while engaging with the working groove 316, the dead bolt 3 appears and disappears by rotating with the rotation of the working cam 51. Activate. The actuating pin 53 abuts on the upper end of the actuating groove 316 as shown in FIG. 11A in the unlocked state, and abuts on the lower end of the actuating groove 316 as shown in FIG. 11B in the locked state.

As shown in FIG. 7, the actuating spring 52 is a dogleg-shaped torsion spring having a central portion 520 and loop-shaped ends. Here, one end hung on the first support pin 54 fixed to the lid plate 2 is referred to as the first end 521, and the other end hung on the second support pin 55 fixed to the actuating cam 51 is referred to as the second end 522.

As shown in FIG. 5B, since the first support pin 54 and the second support pin 55 are similar members, the first support pin 54 will be described here as an example. The first support pin 54 has a main body portion 541 on which the actuating spring 52 is hooked, and the small diameter portion 542 at one end is inserted into the circular hole 205 (see FIG. 4A) of the lid plate 2 and fixed. .. The first support pin 54 has a ring-shaped groove 544 for attaching a retaining ring (not shown) for preventing the main body portion 541 from coming off, and connects the lid plate 2 between the main body portion 541 and the small diameter portion 542. It has a pedestal portion 543 that is thicker than the main body portion 541 for adjusting the arrangement height of the actuating spring 52. As shown in FIG. 5A, the first support pin 54 is fixed on the vertical line B in the lid plate 2.

As shown in FIG. 8A, the cylinder cam 6 is a cam that rotates in conjunction with the cylinder 4, more specifically, the inner cylinder 42, and is to be aligned with the end portion 423 of the cylinder 4 in the center. It has a cylinder portion 60 of the above. The inner circumference of the combined portion 60 has substantially the same shape (rounded rectangle) as the terminal portion 423. The portion of the cylinder cam 6 that surrounds the mating portion 60 is composed of a base portion 61 and a notch portion 62. As shown by using the virtual circle C in FIG. 8B, it can be said that the notch portion 62 is formed by notching in an arc shape along the outer circumference of the cylinder 4. The virtual circle C is the same size as the virtual circle C of the base 511 of the operating cam 51 described above.

The notch 62 is an end at which the locked end 621 at one end abuts with the operating pin 53 in the locked state, and the unlocked end 622 at the other end is the end where the unlocked end 622 abuts with the operating pin 53 in the unlocked state. In FIG. 8, the cylinder cam 6 is shown in a posture of being rotated to the locked state. As an example, in this state, as shown in FIG. 8B, the locking end 621 of the notch 62 is with respect to the vertical line B passing through the center O of the mating portion 60 (the radius of the actuating pin 53 is subtracted). The substantial angle γ1 is at 90 degrees, and the unlocking end 622 is at a position where the substantial angle γ2 with respect to the vertical line B (minus the radius of the actuating pin 53) is 160 degrees. That is, at the time of locking and unlocking, the cylinder cam 6 first rotates 250 degrees in order to push the actuating pin 53. In other words, the surface lock 100 is a type in which the rotation angle of the inner cylinder 42 of the cylinder 4 is 360 degrees, and the key can be unlocked at the time of locking and unlocking.

Returning to FIG. 5B, the assembly will be described. First, the actuating cam 51 provided with the actuating pin 53 and the second support pin 55 is projected from the back surface of the lid plate 2 to the small diameter portion 411 of the outer cylinder 41 of the cylinder 4. A retaining ring (not shown) for preventing disconnection is attached to the ring-shaped groove 424 of the inner cylinder 42.

Next, the actuating spring 52 is hooked on the main body portion 541 of the first support pin 54 whose first end 521 is fixed to the lid plate 2 in advance, and a retaining ring (not shown) for preventing disconnection is attached to the annular groove 544. Similarly, the second end 522 is hung on the second support pin 55 fixed to the operating cam 51, and a retaining ring (not shown) for preventing disconnection is attached to the annular groove. The actuating spring 52 may be attached with the second end 522 first. The actuating spring 52 is attached in a state where the distance or angle between both ends is narrowed by a predetermined value, and the actuating cam 51 is urged in a direction of being locked to the locking pin 7. The first end 521 of the actuating spring 52 is on the vertical line B. The actuating spring 52 rotates with the first end 521 as a fulcrum with the movement of the actuating cam 51, and the position of the second end 522 can be displaced.

Next, the cylinder cam 6 is fitted and attached to the front stage portion of the end portion 423 so as to abut on the rear end surface of the separation portion 422 of the inner cylinder 42 of the cylinder 4, and a retaining ring (not shown) for preventing disconnection is attached to the ring-shaped groove 425. Attach to. The cylinder cam 6 may be attached first, and then the actuating spring 52 may be attached.

In this way, if the cylinder 4 is attached to the lid plate 2, the actuating cam 51 and the cylinder cam 6 are attached to the cylinder 4, and the actuating spring 52 is hung on the actuating cam 51 and the lid plate 2, the assembly of the lid plate unit 100A is completed. If this is fastened to the case body unit 100B, the entire assembly is completed, so that the assembly work of the imposition lock 100 is simplified. Further, all the driving parts of the dead bolt 3 are assembled on the lid plate 2, so that the driving part can be easily confirmed in the state of the lid plate unit 100A.

Further, by configuring the surface lock 100 as described above, the positions of the actuating cam 51 and the cylinder cam 6 are set with respect to the locking pin 7, and adjustment and confirmation work is performed so that the key can be easily inserted and removed. Will be able to do at the same time.

Hereinafter, the operation of the drive unit that drives the dead bolt 3 will be described. The drive unit is started by inserting a key (not shown) into the key insertion hole 421 and turning the inner cylinder 42. The key is inserted and removed from the key insertion hole 421 when the key insertion hole 421 is on the vertical line B and below the horizontal line A (hereinafter referred to as "insertion / removal position") (FIG. 4 (a) of the key insertion hole 421. ), The solid line position in FIG. 5 (a), the broken line position in FIG. 10 (b), and the broken line position in FIG. 12 (b)).

For example, in the unlocked state of the actuating cam 51 of FIG. 5A, the unlocking end 515 of the actuating cam 51 abuts on the locking pin 7, and the unlocking state is maintained by the actuating spring 52 (note that the unlocking state is maintained by the actuating spring 52). As shown in FIG. 11A, in this state, the dead bolt 3 is in an immersive state (unlocked state) in which the operating pin 53 abuts on the unlocked end at the upper end of the operating groove 316). At this time, the cylinder cam 6 is in an unlocked state in which the operating pin 53 does not move even if the unlocking end 622 comes into contact with the operating pin 53 and is pushed. When the unlocking end 622 of the cylinder cam 6 is in contact with the operating pin 53, the key insertion hole 421 is in the insertion / removal position, so that the key can be inserted / removed. It is also possible to insert the key and turn the inner cylinder 42 clockwise (in the direction of the arrow in the figure) to bring the locking end 621 of the cylinder cam 6 into contact with the operating pin 53, but the operating pin 53 is pressed by applying force. Unless pressed, the unlocked state of the operating cam 51 does not change.

On the other hand, when the key is inserted and the inner cylinder 42 is turned clockwise, the cylinder cam 6 is turned to the position indicated by the broken line, a force is applied to the actuating spring 52, and the actuating pin 53 is pushed at the locking end 621, the actuating cam is pressed. 51 rotates, the actuating spring 52 approaches the first end 521 with the second end 522, and the distance between both ends narrows.

FIG. 10A shows a state in which the deadbolt operating mechanism 5 rotates in conjunction with the cylinder cam 6, and the second end 522 of the operating spring 52 is closest to the first end 521. It is a figure. At this time, not only the first end 521 but also the second end 522 is on the vertical line B. When this state is exceeded, the distance between both ends of the actuating spring 52 increases, and the actuating cam 51 automatically rotates clockwise due to the elastic force of the actuating spring 52 without turning the cylinder cam 6. In this way, the deadbolt operating mechanism 5 automatically rotates when it rotates to a certain angle in conjunction with the cylinder cam 6.

FIG. 10B is a diagram showing a state in which the deadbolt operating mechanism 5 rotates until it is automatically locked. In the figure, the actuating cam 51 automatically rotates to the locked state even if the cylinder cam 6 does not press the actuating pin 53. That is, the actuating cam 51 automatically rotates (by itself) by the distance from the position of the actual lock end 621 of the cylinder cam 6 shown by the solid line in the figure to the position of the virtual lock end 621 shown by the broken line. (Note that, as shown in FIG. 11B, in this state, the dead bolt 3 is in a protruding state (locked state) in which the working pin 53 comes into contact with the locked end at the lower end of the working groove 316). In order to insert and remove the key, it is necessary to turn the cylinder cam 6 until the locking end 621 shown by the broken line is in contact with the operating pin 53, but since the operating cam 51 and the dead bolt 3 are already in the locked state, force is applied. All you have to do is turn it without turning it. It is also possible to insert the key and turn the inner cylinder 42 counterclockwise to bring the unlocking end 622 of the cylinder cam 6 into contact with the actuating pin 53, but unless force is applied to push the actuating pin 53. The locked state of the operating cam 51 does not change.

On the other hand, the key is inserted and the inner cylinder 42 is turned counterclockwise to bring the unlocking end 622 of the cylinder cam 6 into contact with the operating pin 53, and apply a force against the operating spring 52 to operate at the unlocking end 622. When the pin 53 is pushed, the actuating cam 51 rotates, the second end 522 of the actuating spring 52 approaches the first end 521, and the distance between both ends is narrowed. FIG. 12A shows a state in which the deadbolt operating mechanism 5 rotates in conjunction with the cylinder cam 6, and the second end 522 of the operating spring 52 is closest to the first end 521. It is a figure. When this state is exceeded, the distance between both ends of the actuating spring 52 increases, and the actuating cam 51 automatically rotates counterclockwise due to the elastic force of the actuating spring 52 without turning the cylinder cam 6. ..

FIG. 12B is a diagram showing a state in which the deadbolt operating mechanism 5 rotates until it is automatically unlocked. The actuating cam 51 automatically rotates (by itself) by the distance from the position of the unlocking end 622 of the actual cylinder cam 6 shown by the solid line in the figure to the position of the virtual unlocking end 622 shown by the broken line. ing. In order to insert and remove the key, it is necessary to turn the cylinder cam 6 until the unlocking end 622 shown by the broken line is in contact with the operating pin 53. All you have to do is turn it without hanging it.

In the surface lock 100, by configuring the drive unit as described above, the load when rotating the inner cylinder 42 with respect to the outer cylinder 41 by operating the key is reduced, and the dead bolt 3 is driven by the cylinder 4. It will be smoother. As a result, the life of the cylinder 4 is extended, and troubles such as wear between members are reduced.

As a result of the durability test of the imposition lock 100 according to the present invention with the locking and unlocking as one set (once) in the prototype, the rotational movement of 100,000 times or more can be performed without any problem.

As an example, stainless steel is used for the case body 1, the lid plate 2, the dead bolt 3, the actuating cam 51, the cylinder cam 6, various pin members, and the pillar members. Brass is used as an example for the cylinder 4. As an example, a piano wire is used for the actuating spring 52.

Although the embodiments of the imposition lock according to the present invention have been described above, these are merely examples of the present invention, and the present invention is not limited thereto. The present invention includes a form in which each of the above embodiments and modifications thereof is combined, and various modifications thereof. Various additions, changes and partial deletions may be made without departing from the conceptual idea and purpose of the present invention derived from the contents specified in the claims and their equivalents.

1 Case body 2 Cover plate 3 Dead bolt 4 Cylinder 41 Outer cylinder 42 Inner cylinder 5 Dead bolt actuating mechanism 51 Acting cam 52 Acting spring 53 Acting pin 54 1st support pin 55 2nd support pin 6 Cylinder cam 7 Locking pin 8 Guide Pin 100 surface lock

Claims (9)

A face-to-face lock for locking and unlocking the door.
With a lock case,
A dead bolt that allows the head to appear and disappear in the lock case,
A cylinder attached to the lock case so that a part of it is exposed,
A cylinder cam that rotates in conjunction with the cylinder,
A dead bolt operating mechanism that engages with the dead bolt is provided.
The deadbolt operating mechanism is a surface-mounted lock characterized in that when it is rotated to a certain angle in conjunction with the cylinder cam, it automatically rotates until it is locked or unlocked. The imposition lock according to claim 1.
The deadbolt actuating mechanism is hooked on an actuating cam, an actuating pin fixed to the actuating cam, a support pin fixed to the lid plate of the lock case at one end, and a support fixed to the actuating cam at the other end. A surface lock characterized by having an actuating spring that can be hung on a pin. The imposition lock according to claim 1 or 2.
The locking pin that locks the rotation of the dead bolt actuating mechanism is a surface lock that is attached to the cylinder. The imposition lock according to claim 2.
The actuating cam of the deadbolt actuating mechanism is a surface lock characterized in that it is attached to the cylinder. The imposition lock according to claim 2 or 4.
The actuating cam of the deadbolt actuating mechanism is a surface lock having an arc-shaped notch along the outer periphery of the cylinder. The imposition lock according to any one of claims 1 to 5.
The cylinder cam is a surface lock having an arc-shaped notch along the outer circumference of the cylinder. The imposition lock according to any one of claims 1 to 6.
The dead bolt is a surface lock having a guide groove parallel to the withdrawal direction and an actuating groove perpendicular to the withdrawal direction that engages with the dead bolt actuating mechanism. The imposition lock according to any one of claims 1 to 7.
Includes a lid plate unit comprising a lid plate covering one side of the lock case.
The lid plate unit is a surface lock having the cylinder, the dead bolt operating mechanism, and the cylinder cam attached to the lid plate as a driving unit for driving the dead bolt. The imposition lock according to any one of claims 1 to 8.
Includes a case body unit with a box-shaped case body having an opening on one side.
The case body unit is a surface lock characterized in that the dead bolt is attached to the case body.

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