JP2016121495A - Cylinder lock and key for cylinder lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily insert a key for cylinder lock (key main body) into a cylinder lock (cylinder lock main body), even if inserting a tip of a rod-shaped shaft portion of a handle into a key hole at a rough angle by gripping a grip portion of the handle in a simple constitution and such a rational constitution as utilizing the rod-shaped shaft portion of the handle.SOLUTION: In a cylinder lock, a tumbler located on an axial right-angle cross section which is orthogonal to a rotation axis of an inner cylinder coincides with a key code formed at a blade, when inserting the blade of a key main body into a key hole of the inner cylinder of a lock main body. The key main body is constituted of: a grip portion; a shaft portion which protrudes from the grip portion in a rod shape; and the cylindrical blade which is rotatably and externally fitted to the shaft portion. An external peripheral shape of the blade is formed into either a circular shape or a polygonal shape of three-rotation symmetry or larger depending on a shape of an internal peripheral face of the key hole. When completely inserting the key main body into the key hole of the lock main body, a rotational force of the key main body is transmitted to the inner cylinder via engagement means arranged at the inner cylinder and the key main body.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a cylinder lock and a cylinder lock key.

  Patent Document 1 is proposed by the applicant. In Patent Document 1, while pursuing as much as possible the convenience at the time of inserting a key, (1) a key body is provided rotatably on the knob portion and the knob portion, and the cross-sectional shape thereof is, for example, three rotations It is formed in a polygon more than symmetrical and has a blade having a key code on its outer peripheral surface, and when the key body is completely inserted into the key hole of the lock body, each of the inner cylinder and the key body An embodiment in which the rotational force of the key body is transmitted to the inner cylinder through the provided engaging means; and (2) a key body is provided rotatably on the knob portion and the knob portion, and the cross-sectional shape thereof is The key body includes a blade having a key code on the outer peripheral surface and a movable trigger that is provided on the knob portion and abuts against the front surface of the inner cylinder when inserted. When fully inserted into the keyhole of the lock body Through the backward movement of the trigger, and through the engagement means provided on each of the inner tube and the key body, the rotational force of the key body embodiment transmitted to the inner tube is described.

JP 2014-208958 A

  The invention of the present application was created on the extension line of the above-described embodiment (1) of Patent Document 1, and the main object of the present invention is a simple configuration and a rational configuration such as utilizing a rod-shaped shaft portion of a handle. Even if you pick the handle knob part and insert the tip of the rod-shaped shaft part of the handle into the key hole at a rough angle, you can easily insert the cylinder lock key (key body) into the cylinder lock (lock body). Be able to. In other words, even in the case of the embodiment in which the knob portion of the key body and the blade are provided so as to be rotatable relative to each other, the convenience at the time of inserting the key is possible (the cross-sectional shape of the blade is at least three-fold symmetrical). While pursuing as much as possible, the inner cylinder can be rotated in the locking and unlocking direction.

  The cylinder lock of the present invention comprises an engagement between the lock body and the key body, and when the blade of the key body is inserted into the key hole of the inner cylinder of the lock body, the key code formed on the blade and the rotation of the inner cylinder In the cylinder lock in which the dumblers located on the cross section perpendicular to the shaft coincide with each other, the key body includes a knob portion, a shaft portion protruding in a rod shape from the knob portion, and a shaft portion that is rotatably attached to the shaft portion. The outer shape of the blade is formed in either a circular shape or a polygonal shape with three or more rotational symmetry corresponding to the shape of the inner peripheral surface of the keyhole, When the main body is completely inserted into the key hole of the lock body, the rotational force of the key body is transmitted to the inner cylinder via the engaging means provided on each of the inner cylinder and the key body. .

  In the above configuration, the engaging means is an engagement urged by an engaging recess or a urging means as a first engaging means provided at the engaging tip of the shaft portion protruding from the tip surface of the blade. On the other hand, the second engagement means that engages and disengages with the first engagement means is either a locking pin urged by the urging means at the rear end of the inner cylinder or the rear of the inner cylinder. It is one of the engagement recesses formed on the inner surface of the end portion. Further, the engagement means is either an engagement recess provided as a first engagement means provided at the tip of the knob portion of the key body Y or a locking pin biased by the biasing means, The second engagement means that engages with and disengages from the first engagement means is a locking pin urged by the urging means at the tip of the inner cylinder or an engagement recess formed on the inner surface of the tip of the inner cylinder. It is either.

Further, the cylinder lock of the present invention comprises the engagement between the lock body and the key body, and when the blade of the key body is inserted into the key hole of the inner cylinder of the lock body, the key code formed on the blade and the inner cylinder In the cylinder lock where the dampers located on the cross section perpendicular to the axis of rotation coincide with each other,
The key body includes a knob portion, a shaft portion protruding in a rod shape from the knob portion, and the cylindrical blade that is rotatably fitted to the shaft portion, and the outer peripheral shape of the blade is the keyhole Corresponding to the shape of the inner peripheral surface of the main body, and is formed into a polygonal shape having three or more rotational symmetry. When the key body is completely inserted into the key hole of the lock body, the first engagement means provided on the blade The protruding outer end of the trigger is pressed against at least the tip of the keyhole, the trigger is displaced against the elastic force of the elastic body, and the inner end of the engagement is formed on the rod-shaped shaft portion. The key body and the blade are integrally engaged with each other, and the rotational force of the key body is transmitted to the inner cylinder.

  In the above, the engagement groove of the second engagement means is any of three or more receiving grooves or serrations having at least frictional resistance.

  Furthermore, the engaging means, which is a specific requirement of the present invention, is attracted according to the first magnetic body provided at the engaging front end of the shaft portion protruding from the front end surface of the blade and the polarity of the first magnetic body. It is the 2nd magnetic body of the inner cylinder which carries out. Further, the engaging means is a serration or a non-slip preventing member provided in the circumferential direction at the front part of the inner cylinder and the tip part of the knob part, respectively. The engaging means is a first engaging surface formed on either the tip of the knob or the outer peripheral surface of the engaging tip of the shaft portion protruding from the tip of the blade. The second engagement surface corresponding to the mating surface is formed on either the front end portion or the rear end portion of the inner cylinder. Further, an outer expanding guide surface for guiding the blade to the center of the keyhole so as to coincide with the rotation axis of the inner cylinder is formed at the edge portion of the tip insertion opening of the keyhole.

  Next, the key for the Linder lock of the present invention comprises a knob part, a shaft part protruding in a rod shape from the knob part, and a cylindrical blade that is rotatably fitted to the shaft part. When one of the engaging means provided on the inner cylinder of the key body is provided with another engaging means that can be engaged and disengaged, and the key body is completely inserted into the key hole of the lock body, the key body and the blade are The one engaging means and the other engaging means are engaged to engage with each other, and the rotational force of the key body is transmitted to the inner cylinder via the blade.

  In the above configuration, one engagement means or one engagement surface is provided on either the distal end portion of the knob portion or the outer peripheral surface of the engagement distal end portion of the shaft portion protruding from the distal end surface of the cylindrical blade. On the other hand, either the other engagement means or the other engagement surface is provided on the inner cylinder of the lock body.

Further, one engaging means is provided at one end of the blade on the knob portion side, and its projecting end is composed of a curved or tapered trigger, and an elastic body that constantly biases the trigger in the projecting direction, When the key body is completely inserted into the key hole of the lock body, the projecting end of the trigger is pushed against the edge portion of the key hole, and the position is displaced against the elastic force of the elastic body. The inner end portion is engaged with an engaging groove as the other engaging means formed on the outer peripheral surface of the rod-shaped shaft portion.
The “cylindrical blade” may have a wall surface at the tip (so-called bottomed cylindrical shape) depending on the embodiment.

(A) The invention described in the independent claim is based on the simple structure and the rod-shaped shaft portion of the key body (handle) on the extension of the embodiment of (1) in Patent Document 1. Depending on the general configuration, even if the knob portion of the key body is picked and the tip of the rod-shaped shaft portion of the key body is inserted into the key hole at a rough angle, the key body can be easily inserted into the lock body, When the key body is completely inserted into the lock body, the key body is integrally engaged with the inner cylinder of the lock body by the coupling means, so that the inner cylinder can be rotated in the locking / unlocking direction.
(B) In the inventions according to claims 2 to 7, when the key body is completely inserted into the lock body, the key body is integrally engaged with the inner cylinder of the lock body by the coupling means.
(C) The invention according to claim 8 can improve the operability of (a).
(D) According to the invention of claim 11, when the key is completely inserted into the key hole of the inner cylinder of the lock, the engaging means of the inner cylinder and the blade are engaged with each other, so that the two are integrated. It is possible to transmit the rotational force of the key to the inner cylinder.
(E) The invention according to claim 12 can be used for a lock formed in either a circular shape or a polygonal shape in which the inner peripheral surface of the keyhole accepts a rotatable cylindrical blade. Further, the effect (c) can be obtained.
(F) The invention according to claim 13 can obtain the effect (c).

FIGS. 1 to 14 are explanatory views showing a first embodiment of the present invention, FIGS. 15 to 17 are explanatory views showing a second embodiment of the present invention, and FIGS. 18 to 20 are third embodiments of the present invention. FIGS. 21 to 23 are explanatory diagrams showing a fourth embodiment of the present invention, FIGS. 24 to 27 are explanatory diagrams showing a fifth embodiment of the present invention, and FIGS. 28 to 30. Is an explanatory diagram showing a sixth embodiment of the present invention, FIG. 31 is an explanatory diagram showing a seventh embodiment showing a modification of the coupling means of the present invention, and FIG. 32 is a diagram showing a modification of the coupling means of the present invention. Explanatory drawing which shows 8 embodiment, FIG. 33 is explanatory drawing which shows 9th Embodiment which shows the modification of the coupling | bonding means of this invention. 34 to 37 are explanatory views showing a tenth embodiment of the present invention.
(A) is explanatory drawing from the front view of a key main body. (B) is a partial schematic cross-sectional explanatory view from the front of the lock body. Schematic cross-sectional explanatory drawing when the key body is inserted into the lock body. (A) is a schematic cross-section explanatory drawing of the coupling state with an inner cylinder and a key main body as a key. (B) is a schematic cross-sectional explanatory drawing rotated 90 degrees clockwise in the state of (a). The perspective view of a key main part (the engagement means of the inner cylinder side is also shown). Schematic explanatory drawing in the state in which the rod-shaped shaft portion of the key body and the inner cylinder are integrally engaged by the engaging means. FIG. 6 is a sectional view taken along line 6-6 of FIG. Explanatory drawing which shows the front-end | tip part of the lock main body X. FIG. Explanatory drawing from the front view of the lock | rock main body X. FIG. (A) is a schematic explanatory drawing from the front view which shows the dimensional difference of the width | variety of the front-end | tip insertion opening of a keyhole, and the outer diameter of a braid | blade. (B) is a schematic explanatory drawing which shows the width | variety of the front-end | tip insertion opening of a keyhole, and the magnitude | size of the receiving port of a keyhole main body. Explanatory drawing when a blade is inserted or inserted into a keyhole (the cross section is a rod-shaped shaft portion and a blade). The schematic cross-section explanatory drawing which shows a keyhole. Explanatory drawing which shows the consistency with the engaging pin by the side of an inner cylinder, and a 4 rotation symmetrical blade. The schematic cross-section explanatory drawing of the axial direction of a lock main body. (A) and (b) are schematic cross-sectional explanatory views in the direction perpendicular to the axis orthogonal to the rotation axis of the inner cylinder, but the cross-sectional positions are different from each other. The perspective view of the key main body of 2nd Embodiment (The engagement means by the side of an inner cylinder is also shown). The schematic explanatory drawing in the state which the front-end | tip part of the key main body and the front-end | tip part of the inner cylinder were integrally engaged by the engagement means. FIG. 17 is a cross-sectional view taken along line 17-17 in FIG. The perspective view of the key main body of 3rd Embodiment. The schematic explanatory drawing in the state which the engagement front-end | tip part of the rod-shaped shaft part of the key main body and the rear-end part of the inner cylinder were integrally engaged by the engagement means. FIG. 20 is a sectional view taken along line 20-20 in FIG. The perspective view of the key main body of 4th Embodiment. The schematic explanatory drawing in the state which the front-end | tip part of the key main body and the front-end | tip part of the inner cylinder were integrally engaged by the engagement means. FIG. 23 is a sectional view taken along line 23-23 in FIG. 22; The perspective view of the key main body of 5th Embodiment. Explanatory drawing of the principal part (receiving groove). The schematic explanatory drawing in the middle of inserting the key main body into the keyhole of the inner cylinder. The schematic explanatory drawing which inserted the key body completely in the keyhole of the inner cylinder. The perspective view of the key main body of 6th Embodiment. Explanatory drawing of the principal part (modification of a trigger and a receiving groove). The schematic explanatory drawing which inserted the key body completely in the keyhole of the inner cylinder. Explanatory drawing from the perspective of the principal part (1st engaging part and 2nd engaging part) of 7th Embodiment. Explanatory drawing from the perspective of the principal part (1st magnetic body and 2nd magnetic body) of 8th Embodiment. Explanatory drawing from the perspective of the principal part (slip prevention member) of 9th Embodiment. The perspective view which shows the lock body and key body of 10th Embodiment. The schematic explanatory drawing of the principal part. Schematic cross-sectional explanatory drawing when the key body is inserted into the lock body. (A) is a schematic cross-section explanatory drawing of the coupling state of an inner cylinder and a key. (B) is a schematic cross-sectional explanatory drawing rotated 90 degrees clockwise in the state of (a).

  1 to 14 are explanatory views of the first embodiment of the present invention. FIG. 1A shows a key (hereinafter referred to as “key body Y”) constituting a cylinder lock. On the other hand, FIG. 1B shows a lock X (hereinafter referred to as “lock body X”) constituting a cylinder lock. The cylinder lock of the present invention consists of the engagement (combination) of the lock body X and the key body Y, and when the cylindrical blade 7 of the key body Y is inserted into the key hole 13 of the inner cylinder 12 of the lock body X. The key code formed on the blade coincides with the dumbler located on the cross section perpendicular to the rotation axis of the inner cylinder (see FIG. 2). The lock main body X in FIG. 1B is composed of an outer cylinder 11, an inner cylinder 12, a key hole 13, a movable obstruction 20 and the like, as in a normal general lock.

  First, the configuration of the key body Y will be briefly described with reference to FIG. In these drawings, 1 is a thick plate-like knob part, 2 is a plate-like, a tip part corresponding to a stopper part of a knob part such as a circular outer peripheral surface having a neck part, and 3 is a tip part of the tip part 2 A shaft portion 4 that protrudes in a bar shape that is relatively long in the horizontal direction from a substantially central portion of the surface is connected to the shaft portion 3 at the tip portion, and an engagement tip portion that has a diameter larger than that of the shaft portion 3, A bullet-shaped, finger-tip-shaped, conical-shaped, or a truncated-conical-shaped guided distal end connected to the engagement distal end, 6a is an engagement recess formed at an appropriate site on the circumferential surface of the engagement distal end, Reference numeral 7 denotes a relatively long cylindrical blade that is rotatably provided on the rod-shaped shaft portion 3 and has a cross-sectional shape formed in a polygonal shape that is equal to or greater than three rotational symmetry. 8 is an outer peripheral surface of the cylindrical blade. It is a key code formed in

That is, the key body Y of the present embodiment includes a knob portion 1, a shaft portion 3 that protrudes in a rod shape from the knob portion 1, and a cylindrical blade 7 that is rotatably fitted to the shaft portion. The outer peripheral shape of the cylindrical blade corresponds to the shape of the inner peripheral surface of the key hole 13 of the inner cylinder 12 rotatably provided on the outer cylinder 11 of the lock body X, and is a polygonal shape of at least three rotational symmetry or more. When the key body Y is completely inserted into the key hole 13 of the lock body X, the rotational force of the key body Y is engaged via the engaging means 6 provided in each of the inner cylinder 12 and the key body Y. Is transmitted to the inner cylinder.
For example, as shown in FIGS. 2 and 4, the engaging means 6 is a first engaging means provided on the engaging tip 4 of the shaft portion 3 protruding from the tip 7 a of the cylindrical blade 7. Either the engagement recess 6a or the locking pin 6b urged by the urging means 6c of the inner cylinder 12, while the second engagement of the inner cylinder 12 corresponding to the first engagement means 6a The means is either the locking pin 6b biased by the biasing means 6c or the engaging recess 6a. In the embodiment, the engagement recess 6a as the first engagement means is provided in the key body Y, while the locking pin 6b and the biasing means 6c as the second engagement means are provided in the lock body X. (See FIG. 5).

  By the way, the structure of the locking pin 6b is as follows. The engaging tip fitting hole having a smaller diameter than the key hole communicating with the key hole 13 from the storage hole 9 for storing the inner end of the locking pin 6b and the biasing means 6c. In addition to having an unnumbered flange portion so that it does not fall on 10, the shape of its outer peripheral surface is such that the shaft portion 3 can move in the axial direction, while the shaft portion 3 rotates (the direction of unlocking / unlocking) ) Exhibits a function of locking (connecting) so that the rotational force of the key body Y is transmitted to the inner cylinder of the lock body X. Therefore, the locking pin 6b is formed in a substantially U shape having vertical locking surfaces on the left and right side surfaces, for example.

  Further, a large number of depressions 8 are formed on the polygonal outer peripheral surface of the cylindrical blade 7 at, for example, a position that is four-fold symmetric. The depression 8 is an example of a key code, and is simply described for convenience of explanation. Since the key code 8 may be a small or large notch or depression formed on each side surface as long as it has three or more rotational symmetry, the key code 8 of the embodiment has a large opening and a deep recess 8a. And a recess 8b having a small opening and a shallow recess. Further, the blade 7 of the key body Y of the embodiment has an octagonal shape in vertical section (see FIG. 6), and the vertical width K1 and the vertical width K2 are substantially the same (see FIG. 9). As described above, the outer peripheral shape of the blade 7 of the key Y of the present invention is formed in a polygonal shape such as a hexagonal shape, an octagonal shape or the like having a rotational symmetry of three or more.

  Next, the lock body X of the present embodiment will be described with reference to FIG. The lock main body X of the embodiment also has a recess or notch as a key code 8 formed in the cylindrical blade 7 when the cylindrical blade 7 of the key main body Y is completely inserted into the key hole 13 of the inner cylinder 12. The basic structure is the same as that of the conventional lock in that it is a cylinder lock in which the damper 20 located on the cross section perpendicular to the axis of rotation of the cylinder 12 (for example, the tailpiece) O is perpendicular.

  However, according to the first embodiment of the present invention, even if the insertion angle of the cylindrical blade 7 with respect to the key hole 13 is somewhat rough, the distal end portion 7 a of the cylindrical blade 7 is formed on the inner peripheral wall of the distal end portion of the key hole 13. After being guided to the outer guide surface 13A, the key body Y can be completely inserted into the keyhole 13. Accordingly, the width of the guide surface 13A gradually decreases from the edge portion a of the tip insertion opening of the keyhole 13 to the edge portion b of the receiving port of the keyhole body 13A. Thus, for example, as shown in FIGS. 8 to 10, the key hole 13 is immediately or slightly spaced from the guide hole 13A having the outer expanding guide surface 13a on the inner peripheral wall of the tip and the rear end of the guide hole 13A. The key hole main body 13A communicates, and at least the left and right and upper and lower inner diameters (widths) W1 and W2 of the edge portion a of the tip insertion port of the key hole 13 are the right and left of the tip portion 7a of the cylindrical blade 7 of the key body Y. It is larger than the upper and lower outer diameters (widths) K1 and K2. Also, the keyhole body 13A for receiving the key code 8 of the cylindrical blade 7 and the damper 20 at a position where the tip end or the center portion corresponding to the back of the edge portion a of the tip insertion opening is coincident with the keyhole body 13A. Is provided.

  Here, a description will be given with reference to FIGS. First, FIG. 8 is a schematic explanatory view from a front view showing a dimensional difference between the outer diameters of the distal end portion (edge portion of the insertion port) a of the keyhole 13 and the cylindrical blade 7 of the key Y. The inner cylinder 12 is formed with a key hole 13 including a guide hole 13A and a key hole body 13A communicating with the guide hole 13A along the rotation axis. In this embodiment, for example, as shown in FIG. Even if the blade 7 is slightly inclined in the left-right direction (meaning that the long wall surface above the portion shown in the section is slightly inclined), the tip 7 a of the cylindrical raid 7 or the tip of the shaft portion 3 A sufficiently large dimensional difference (gap) is set between the outer peripheral surface of the guided portion 5 of the guided portion 5 and the edge portion a of the distal end insertion opening of the keyhole 13, so that a cylindrical blade can be freely formed. 7 can be fitted to the edge portion a of the distal end insertion opening of the guide hole 13A.

  Next, FIG. 9 and FIG. 10 show the edge part b of the keyhole 13 at the front end (insertion port) and the part near the front end part or the part near the center part in some embodiments and the rear end part ( This shows the dimensional difference between the inner diameters (widths) W1 and W2 of the left and right and upper and lower sides of the back portion c and the left and right and upper and lower widths (sizes) K1 and K2 of the cylindrical blade 7 of the key body Y. In the embodiment, the shape of the insertion port a of the key hole 13 is substantially circular (W1 and W2 are the same), but the outer peripheral shape of the cylindrical blade 7 of the key body Y is the horizontal width K1 and the vertical width of the vertical section. K2 is the same non-regular octagon (see FIG. 9).

  Referring to FIG. 10, the left and right and upper and lower inner diameters (widths) W1 and W2 of the edge portion a of the tip insertion opening of the key hole 13 of the inner cylinder 12 of the lock body X are the chamfers of the cylindrical blade 7 of the key body Y. On the other hand, the inner diameter (width) of at least the edge portion b of the receiving hole of the keyhole body 13A of the keyhole 13 is the size of the edge portion a of the tip insertion port. Even if the insertion angle with respect to the keyhole 13 is somewhat rough, that is, even if the insertion angle of the cylindrical blade 7 with the knob portion 1 of the key lock Y is moderate, it is smaller than the inner diameters (widths) W1 and W2. The tip portion 7a of the blade 7 can be fitted into the edge portion a of the tip (insertion opening) with a margin.

  Therefore, when the distal end portion 7 a of the cylindrical blade 7 is inserted into the key hole 13, the distal end portion 7 a of the cylindrical blade 7 is aligned with the distal end insertion port of the key hole 13 by holding a knob. When the tip 7a of the cylindrical blade 7 is fitted into the tip insertion opening of the keyhole 13, the outer expansion guide surface 13a at the tip of the keyhole 13 faces the edge b of the receiving hole of the keyhole body 13A. The tip 7a of the cylindrical blade 7 is controlled (corrected) in sliding contact with the outer expanding guide surface 13a if the knob portion 1 is pushed in as appropriate. The cylindrical blade 7 in the tilted state is in a horizontal state and smoothly reaches the edge portion b of the receiving port of the keyhole body 13A. Therefore, when the knob portion 1 is further pushed in, the key cord 8 of the cylindrical blade 7 and the dumbler 20 positioned on the cross section orthogonal to the axis of rotation of the inner cylinder 12 coincide. At this time, the center of the cylindrical blade 7 to the knob portion 1 coincides with the rotation axis O of the inner cylinder 12, and the engaging means 6 of the present invention are engaged with each other so that the inner cylinder 12 and the key body Y cooperate. It becomes possible. When the knob portion 1 is turned, the inner cylinder 12 is rotated, and when the inner cylinder 12 is rotated, the polygonal cylindrical blade 7 is rotated together with the engaging pin (movable obstacle) 17.

  That is, as shown in FIG. 2, since the second engagement portion 6 b is engaged with the first engagement portion 6 a, the operating force of the key body Y is transmitted to the inner cylinder 12 via the engagement means 6. In addition, in the embodiment, the keyhole 13 of the inner cylinder 12 and the cylindrical blade 7 are polygons that are in a four-rotation symmetrical relationship corresponding to each other, and therefore, when the inner cylinder 12 is turned with the knob portion 1, For example, it can be turned 90 degrees clockwise from the state at the time of insertion in FIG. 3A to the unlocked position in FIG.

  As described above, the cylindrical blade 7 of the key body Y of the embodiment is provided so as to be rotatable with respect to the knob portion 1, but rotates together with the inner cylinder 12 when inserted into the key hole 13. Further, the rotational force of the key body Y is transmitted to the inner cylinder of the lock body X via the engaging means 6.

  By the way, although it is a well-known matter, just in case, with reference to FIG. 2, the structure of the biasing spring 19, the damper 20 etc. is demonstrated. The dumbler 20 includes an engagement pin 17 and a driver 18. The engagement pin 17 includes a shaft portion 17a having an engagement tip portion slidable in the through-hole 16, and an engagement rod 17b that is connected to the outside of the shaft portion 17a and can contact the driver 18. It consists of. The engagement pin 17 is normally urged inward (in the direction of the keyhole) together with the driver 18 by the resilient force of the urging spring 19, but the engagement rod 17 b is formed at the step portion between the pin hole 15 and the through hole 16. The inward movement is restricted by the contact. Accordingly, the damper 20 is composed of the inner engaging pin 17 and the outer driver 18, and the semicircular arc engaging tip portion of the engaging pin 17 is always a predetermined amount of keyhole by the spring force of the biasing spring 19. 13 protrudes.

  In the embodiment, the pin holes 14 and 15 of the dumbler 20 are arranged in a plurality of lines in a straight line in the axial direction on the upper and lower sides. The main bodies (inner cylinder 12 and outer cylinder 11) X are respectively positioned on a cross section perpendicular to the axis obtained by cutting the main body X in the radial direction. The arcuate engagement tip portions of the upper and lower dampers 20 pass through the approximate center of the recess 8 when the key body Y is inserted into the key hole 13. That is, the axial line passing through the center of the depression 8 of the key body Y as a key is completely coincident with the radial axis of the pin holes 14 and 15 for the dumbler 20 orthogonal to the rotation axis of the inner cylinder 12.

  FIG. 12 is an explanatory view showing the alignment between the engagement pin 17 on the inner cylinder side and a depression as an example of the key code 8 of the four-fold symmetrical cylindrical blade 7. FIG. 13 is a schematic cross-sectional explanatory view of the lock body X in the axial direction, but for the sake of convenience, all the dumblers 20 are indicated by solid lines. Further, FIGS. 14A and 14B are schematic cross-sectional explanatory views in the direction perpendicular to the axis orthogonal to the rotation axis of the inner cylinder 12, but the cross-sectional positions are different.

  Hereinafter, in the column of this example, the second embodiment, the third embodiment, and the like of the present invention will be described. For convenience of explanation, the same parts as those in the first embodiment are denoted by the same or similar reference numerals, and redundant explanations are omitted.

  First, FIGS. 15 to 17 are explanatory views showing a second embodiment of the present invention. The second embodiment is mainly different from the first embodiment in that the first engaging means 6a constituting the engaging means 6A is provided at the distal end portion 2 of the knob portion 1 of the key body Y, and The second engaging means 6b, 6c engaging / disengaging with the first engaging means 6a is provided at the tip of the inner cylinder 12. In the second embodiment, the distal end portion 2 of the knob portion 1 and the cylindrical blade 7 have the same radius, and the outer peripheral surface of the distal end portion 2 is the same as that of the cylindrical blade 7. Therefore, as shown in FIG. 17, when the key body Y is completely inserted into the key hole 13 of the inner cylinder 12, the tip 2 of the knob portion 1 does not function as a stopper, and the key hole is similar to the cylindrical blade 7. 13 is inserted. Even if comprised in this way, there exists an effect | action and effect similar to 1st Embodiment. Although not particularly illustrated, in the second embodiment as well, the first engagement means 6a is provided at the tip of the inner cylinder 12 as in the first embodiment, while the second engagement means 6b, 6c May be provided at the tip 2 of the knob 1 of the key body Y.

  Further, in the present specification, as a precaution, the cylindrical blade 7 may be a so-called bottomed cylindrical shape. That is, depending on the embodiment, the cylindrical blade is a perfect pipe or a cylindrical bottomed cylinder having a front wall at the tip unless the problems and effects of the invention of each embodiment are disturbed. There may be.

  Next, FIGS. 18 to 20 are explanatory views showing a third embodiment of the present invention, while FIGS. 21 to 23 are explanatory views showing a fourth embodiment of the present invention. These embodiments are technical ideas in that the engaging surface of the key body Y and the engaging surface of the lock body X are engaged to transmit the rotational force of the key body Y to the inner cylinder 12 of the lock body X. Are the same.

  That is, in these embodiments, the first engagement surface 6 a formed on either the distal end portion 2 of the knob portion 1 or the outer peripheral surface of the engagement distal end portion 4 of the shaft portion 3 protruding from the distal end surface 7 a of the blade 7. (As described above, for convenience, the same reference numerals as those of the engagement recess 6a of the first embodiment are used.) On the other hand, the second engagement surface 6b corresponding to the first engagement surface 6a (first for convenience) The same reference numeral as that of the locking pin 6b of the embodiment) is formed on either the front end portion of the inner cylinder 12 or the inner peripheral surface of the rear end portion.

  Thus, in the engaging means 6B of the third embodiment, a polygonal first engaging surface 6a whose tip surface is chamfered is formed on the engaging tip portion 4 of the shaft portion 3 protruding from the tip surface 7a of the blade 7. On the other hand, a polygonal second engagement surface 6b corresponding to the first engagement surface 6a is formed on the inner peripheral surface of the rear end portion of the inner cylinder.

  On the other hand, in the engaging means 6C of the fourth embodiment, a polygonal first engaging surface 6a is formed at the distal end portion 2 of the knob portion 1, while a polygonal first engaging surface 6a corresponding to the first engaging surface 6a is formed. The two engaging surfaces 6 b are formed on the inner peripheral surface of the tip portion of the inner cylinder 12. Note that the tip 2 of the knob portion 1 of the fourth embodiment also does not function as a stopper as in the second embodiment described above, and fits into the keyhole 13 like the cylindrical blade 7. The radius of the tip 2 of the portion 1 and the cylindrical blade 7 is the same, and the outer peripheral surface of the tip 2 is the same as that of the cylindrical blade 7.

  Next, FIGS. 24 to 27 are explanatory views showing a fifth embodiment of the present invention, while FIGS. 28 to 30 are explanatory views showing a sixth embodiment of the present invention. In these embodiments, the through-accommodating portion 30 for the first engaging means constituting one of the engaging means 6D and 6E is formed at an appropriate location of the cylindrical blade 7, while the engaging means 6D and 6E are formed. When the second engagement means constituting the other of the two is provided in the key body Y and the key body Y is inserted into the key hole 13 of the inner cylinder 12 of the lock body X, the trigger constituting the first engagement means is elastic of the elastic body. The key body Y is displaced in the inner direction of the cylindrical blade 7 against the force, and the key body Y is integrated with the inner cylinder 12 of the lock body X. As a result, the rotational force of the key body Y is applied to the inner cylinder 12 of the lock body X. The technical idea is the same in that Therefore, for the explanation of the configuration and operation of the sixth embodiment, the same reference numerals as those of the fifth embodiment are attached and duplicate explanation is omitted.

  The fifth embodiment is based on the premise that the outer peripheral surface of the cylindrical blade 7 is a polygonal shape having three or more rotational symmetry and that the inner peripheral surface of the inner cylinder is engaged with the outer peripheral surface of the cylindrical blade 7. . The main difference from the first embodiment is that (a) the first engaging means constituting one of the engaging means 6D is a trigger 31 and an urging means 32 for urging the trigger 31. (B) The trigger 31 and the biasing means 32 are incorporated in a through-housing portion 30 formed in an appropriate part of the cylindrical blade 7, and (c) the protruding outer end portion of the trigger 31 is a keyhole of the inner cylinder 12. When the edge portion 13 is pressed, the trigger 31 is displaced in the inner direction of the cylindrical blade 7 against the elastic force of the elastic body 32, and (e) the engagement of the displaced trigger 31 is performed. The inner end portion is engaged with an engaging groove 33 as second engaging means formed on the outer peripheral surface of the rod-shaped shaft portion 3.

  Although the form and installation location of the trigger 31 are matters that can be changed as appropriate, in the embodiment, the protruding end portion 31a is formed in a curved surface shape or a taper shape, and is based on a flange portion 31b provided around the center portion. The opposite end portion is an engagement end portion 31c that engages and disengages with the engagement groove 33 of the rod-shaped shaft portion 3. The elastic body 32 is housed on the bottom surface side of the penetrating storage portion 30 while being wound around the engagement end portion 31c, and urged so that the protruding end portion 31a protrudes from the outer peripheral surface of the trigger 31 by a predetermined amount. doing. Further, at least three engagement grooves 33 of the second engagement means are formed in the circumferential direction at a portion corresponding to the position of the trigger 31 of the first engagement means. The number of engaging grooves 33 is preferably large.

  Therefore, the fifth embodiment consists of the engagement between the lock body X and the key body Y, and when the cylindrical blade 7 of the key body Y is inserted into the key hole 13 of the inner cylinder 12 of the lock body X, the tubular shape In the cylinder lock in which the key cord 8 formed on the blade 7 and the damper 20 located on the cross section perpendicular to the rotation axis of the inner cylinder 12 coincide with each other, the key body Y includes the knob portion 1, The shaft portion 3 protrudes in a rod shape from the knob portion and the cylindrical blade 7 that is rotatably fitted to the shaft portion. The outer peripheral shape of the blade 7 is the inner peripheral surface of the keyhole 13. As a first engagement means provided on the blade 7 when the key body Y is completely inserted into the key hole 13 of the lock body X, it is formed in a polygonal shape of three or more rotational symmetry corresponding to the shape. The protruding outer end 31a of the trigger 31 is at least the keyhole 1 The second engaging means formed on the outer peripheral surface of the rod-shaped shaft portion 3 has its engaging inner end portion 31c displaced in position against the elastic force of the elastic body 32. The key body Y and the blade 7 are integrally engaged with each other, and the rotational force of the key body Y is transmitted to the inner cylinder 12 through the blade 7.

  The second engagement means 33A of the sixth embodiment indicates that the serration having at least a frictional resistance may be used instead of three or more receiving grooves. The serration as the second engaging means 33A is formed in the circumferential direction as a whole, for example, at an appropriate portion on the tip portion of the key body Y or the knob portion 1 side of the shaft portion 3.

Next, FIG. 31 is an explanatory diagram showing a seventh embodiment showing a modification of the coupling means of the present invention, FIG. 32 is an explanatory diagram showing an eighth embodiment showing a modification of the coupling means of the present invention, and FIG. It is explanatory drawing which shows 9th Embodiment which shows the modification of the coupling | bonding means of this invention. These embodiments show a design change example in which the operating force of the knob portion 1 is transmitted to the inner cylinder 12 just in case. Therefore, the coupling means 6F, 6G, 6H of each embodiment will be briefly described. In the description of the coupling means of each embodiment, the same reference numerals as those of the engagement recess 6a and the locking pin 6b of the first embodiment are used for convenience.
The engaging means 6F in FIG. 31 of the seventh embodiment is a serration (multiple grooves). That is, a first engaging portion 6a is formed as a serration in the circumferential direction on the front surface portion of the distal end portion of the inner cylinder 12, while the distal end portion 2 of the knob portion 1 is formed as a serration in the circumferential direction. A second engagement portion 6b is formed.

  Further, the engaging means 6G of FIG. 32 of the eighth embodiment is a magnetic body. That is, the first magnetic body 6a is fixed to the front surface portion of the inner cylinder 12 with a predetermined interval in the circumferential direction, while the first magnetic body 6 is fixed to the distal end portion of the knob portion 1 in the circumferential direction. A plurality of second magnetic bodies 6b to be adsorbed corresponding to the polarities of are fixed. In this eighth embodiment, the magnetic body is disposed on both sides, but the engaging means 6G has either one of the front surface portion of the inner cylinder 12 or the tip portion 2 of the knob portion 1 made of metal, and the other. May be a magnetic substance adsorbing to the metal.

  Furthermore, the engaging means 6H of FIG. 33 of the ninth embodiment are anti-slip members 6a and 6b. Since the anti-slip members 6a and 6b rotate together due to friction, the material (rough surface) is appropriately selected.

  Finally, FIGS. 34 to 37 are explanatory views showing a tenth embodiment of the present invention. In the tenth embodiment, the essential part of the present invention is that "the cylindrical blade 7 having the key cord 8 on the outer peripheral surface is rotatably fitted to the rod-shaped shaft portion 3 of the knob portion 1". For emphasis, it is described herein for convenience, and is different from other embodiments in which the insertion angle of the key body Y is controlled (corrected) in the keyhole 13.

  In the tenth embodiment, the main difference from the first embodiment is that (a) the outer peripheral shape of the vertical cross section of the cylindrical blade 7A of the key body Y1 is a perfect circle or a substantially perfect circle. b) The key code 8A formed on the cylindrical blade 7A is a plurality of annular grooves formed at predetermined intervals in the longitudinal direction of the cylindrical blade, and (c) the inner cylinder 12 of the lock body X1. The inner peripheral surface of the keyhole body 13A is formed in a perfect circle or a substantially perfect circle corresponding to the outer peripheral shape of the cylindrical blade 7A, (d) Therefore, the edge of the receiving port near the tip The part b is also a point that is a perfect circle or a substantially perfect circle.

  The annular groove 8A of the key body Y1 of the tenth embodiment is repeated so that the large diameter portion and the small diameter portion form a continuous pattern from the proximal end portion to the distal end, but the width of the annular groove 8A, The shape, depth, etc. are matters that can be arbitrarily changed in design. Further, the engaging means may have the configuration of the seventh embodiment, the eighth embodiment, and the ninth embodiment, but in the tenth embodiment, a plurality of engaging recesses 6a provided on the distal end surface of the inner cylinder 12 and The engaging means 6I configured by engaging protrusions 6b provided on the distal end surface of the knob portion 1 engageable with these is employed. In addition, since the principal part and the principal part of 10th Embodiment are the same as that of 1st Embodiment, detailed description is omitted here by drawing the same drawing as much as possible.

  Incidentally, the cylinder lock key of the present invention comprises a knob portion 1, a shaft portion 3 protruding in a rod shape from the knob portion, and a cylindrical blade 7 that is rotatably fitted to the shaft portion. When the knob portion 1 is provided with the other engaging means that can be engaged and disengaged with one engaging means provided on the inner cylinder 12 of the lock (lock body) X, and when the knob is completely inserted into the keyhole 13, the cylindrical shape The blade 7 is integrally engaged when the key-side engaging means and the lock-side engaging means are engaged with each other, and the rotational force of the key is transmitted to the lock inner cylinder 12. The engaging means is, for example, an inner cylinder of the cylinder lock 1 on either the distal end portion 2 of the knob portion 1 or the outer peripheral surface of the engaging distal end portion 4 of the shaft portion 3 protruding from the distal end surface of the cylindrical blade 7. 12 is provided with either one of the engaging means or the other engaging means corresponding to the one engaging surface. Further, depending on the embodiment, one engaging means is provided at one end of the blade 7 on the knob portion side, and its protruding end 31a has a curved or tapered trigger 31 and the trigger is always in the protruding direction. The elastic body 32 is urged, and when the key Y is completely inserted into the key hole 13 of the lock X, the protruding end portion 31a of the trigger 31 is pushed by the front end portion of the key hole 13, thereby the elastic body. The position is displaced against the elastic force of 32, and the engagement inner end 31c engages with an engagement groove (33, 33A) as the other engagement means formed on the outer peripheral surface of the rod-shaped shaft portion 3. .

  The present invention can be used mainly as a cylinder lock for joinery and a cylinder lock key.

X, X1 ... lock body,
Y, Y1 ... Key body,
1 ... pick part,
2 ... The tip of the knob,
3 ... Rod-shaped shaft part,
4 ... large diameter engagement tip,
5 ... guided tip,
6 to 6F ... engaging means 6a ... engaging recess,
6b ... locking pin,
6c ... biasing means,
7, 7A ... cylindrical blade,
7a: the tip of a cylindrical blade,
8,8A ... Key code,
9 ... Housing hole,
10 ... Fitting hole for tip,
11 ... outer cylinder,
12 ... Inner cylinder,
13 ... keyhole,
13A ... guide hole,
13A ... Outside expansion guide surface,
a ... the tip of the keyhole 13 (the edge of the insertion slot),
13A ... Keyhole body,
14, 15 ... pin holes,
16 ... through hole,
17 ... engaging pin,
18 ... Driver,
19 ... Biasing spring,
20 ... movable obstacle 31 ... trigger,
32. Elastic body for trigger,
33, 33A ... engaging grooves.

Claims (13)

A cross section perpendicular to the key code formed on the blade and the axis of rotation of the inner cylinder when the blade of the key body is inserted into the key hole of the inner cylinder of the lock body. In the cylinder lock where the upper dumbler matches,
The key body includes a knob portion, a shaft portion protruding in a rod shape from the knob portion, and the cylindrical blade that is rotatably fitted to the shaft portion, and the outer peripheral shape of the blade is the keyhole The inner cylinder and the key body when the key body is completely inserted into the key hole of the lock body. A cylinder lock in which the rotational force of the key body is transmitted to the inner cylinder via engagement means provided on each of the cylinder locks. The engagement means is biased by an engagement recess or biasing means as a first engagement means provided at an engagement tip portion of a shaft portion protruding from the tip surface of the blade. On the other hand, the second engaging means which is engaged with or disengaged from the first engaging means is either a locking pin or an inner cylinder biased by a biasing means at the rear end portion of the inner cylinder. A cylinder lock, which is one of engagement recesses formed on an inner surface of a rear end portion. 2. The engagement means according to claim 1, wherein the engagement means is an engagement recess provided as a first engagement means provided at a tip portion of a knob portion of the key body Y or a locking pin biased by the biasing means. On the other hand, the second engagement means that engages with and disengages from the first engagement means is formed on the locking pin urged by the urging means at the tip of the inner cylinder or the inner surface of the tip of the inner cylinder. A cylinder lock characterized by being one of the engagement recesses. 2. The engaging means according to claim 1, wherein the engaging means includes a first magnetic body provided at an engaging front end portion of the shaft portion protruding from the front end surface of the blade, and an inner portion that adsorbs in accordance with the polarity of the first magnetic body. A cylinder lock characterized by being a second magnetic body of a cylinder. 5. The cylinder lock according to claim 4, wherein one of the first magnetic body and the second magnetic body of the engaging means is a metal having an adsorptivity. 2. The cylinder lock according to claim 1, wherein the engaging means is either a serration or an anti-slip member provided in the circumferential direction at the front part of the inner cylinder and the tip part of the knob part. . In Claim 1, the engagement means is a first engagement surface formed on either the distal end portion of the knob portion or the outer peripheral surface of the engagement distal end portion of the shaft portion protruding from the distal end surface of the blade, On the other hand, the second engagement surface corresponding to the first engagement surface is formed on either the front end portion of the inner cylinder or the inner peripheral surface of the rear end portion. The outer extended guide surface for guiding the blade to the center of the keyhole so as to coincide with the rotation axis of the inner cylinder is formed at an edge portion of the tip insertion opening of the keyhole. Cylinder lock. A cross section perpendicular to the key code formed on the blade and the axis of rotation of the inner cylinder when the blade of the key body is inserted into the key hole of the inner cylinder of the lock body. In the cylinder lock where the upper dumbler matches,
The key body includes a knob portion, a shaft portion protruding in a rod shape from the knob portion, and the cylindrical blade that is rotatably fitted to the shaft portion, and the outer peripheral shape of the blade is the keyhole Corresponding to the shape of the inner peripheral surface of the main body, and is formed into a polygonal shape having three or more rotational symmetry. When the key body is completely inserted into the key hole of the lock body, the first engagement means provided on the blade The protruding outer end of the trigger is pressed against at least the tip of the keyhole, the trigger is displaced against the elastic force of the elastic body, and the inner end of the engagement is formed on the rod-shaped shaft portion. A cylinder lock that engages with an engagement groove serving as second engagement means, the key body and the blade are integrally engaged, and the rotational force of the key body is transmitted to the inner cylinder via the blade. The cylinder lock according to claim 9, wherein the engagement groove of the second engagement means is any of three or more receiving grooves or serrations having at least frictional resistance. A knob portion, a shaft portion protruding in a rod shape from the knob portion, and a cylindrical blade that is rotatably fitted to the shaft portion, and one of the knob portions provided on the inner cylinder of the lock body When the engaging means is provided with another engaging means that can be engaged and disengaged, and the key body is completely inserted into the key hole of the lock body, the key body and the blade are engaged with the one engaging means and the other engaging means. A cylinder locking key that is integrally engaged by engagement of engagement means, and the rotational force of the key body is transmitted to the inner cylinder. 12. The engagement means or the engagement surface according to claim 11, wherein one of the engagement means or the engagement surface is provided on either the distal end of the knob portion or the outer peripheral surface of the engagement distal end of the shaft portion protruding from the distal end surface of the cylindrical blade. On the other hand, either the other engagement means or the other engagement surface is provided on the inner cylinder of the lock body. 12. The engagement means according to claim 11, wherein the one engaging means is provided at one end of the blade on the knob portion side, and the protruding end has a curved or tapered trigger, and the elastic force constantly biases the trigger in the protruding direction. And when the key body is completely inserted into the key hole of the lock body, the projecting end of the trigger is pushed against the edge of the key hole, so that the position displacement is resisted against the elastic force of the elastic body. A cylinder lock key, wherein the engagement inner end portion engages with an engagement groove as the other engagement means formed on the outer peripheral surface of the rod-shaped shaft portion.

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