JP2006152627A - Installing structure of cylinder lock in key cylinder device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an installing structure of a cylinder lock in a key cylinder device, for easily installing the cylinder lock in a body. <P>SOLUTION: This installing structure of the cylinder lock in the key cylinder device stores the cylinder lock in the body, by installing the cylinder lock composed of a cylinder inner and a cylinder outer in the body and engaging a lock pin arranged in the cylinder outer with an engaging part of the body; and is constituted for checking the rotational movement of the cylinder inner, by arranging a recessed part for receiving the lock pin in the predetermined rotational position in the cylinder inner and the notch part continuously connected to one end part of this recessed part, moving the cylinder inner in the key inserting direction in a predetermined rotational position and thereby engaging the lock pin with a notch part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a key cylinder device provided in a steering lock device of an automobile or the like, and more particularly to a mounting structure of a cylinder lock in the key cylinder device.

  For example, a key cylinder device applied to a steering lock device of an automobile accommodates a cylinder lock composed of a cylinder inner and a cylinder outer in a body that can be attached to a steering post, and allows the cylinder inner to rotate. A lock member for preventing the steering shaft from rotating at the interlocking lock position is accommodated.

  The cylinder lock accommodated in the body is generally fixed to the body by caulking or the like, but a lock pin biased so as to protrude outward from the outer peripheral surface of the cylinder outer is engaged with the engagement hole of the body. Therefore, a cylinder lock that is detachably held in the body (detachable cylinder lock mounting structure) is also known.

  Conventionally, as such a detachable cylinder lock mounting structure, for example, a steering lock device as disclosed in Japanese Patent Laid-Open No. 10-1026 has been proposed.

  FIG. 14 shows the steering lock device described above. A cylinder lock 4 including a cylinder inner 1 and a cylinder outer 3 is accommodated in the body 9 of the steering lock device, and the body 9 has a lock position interlocked with the rotation of the cylinder inner 1. A lock member 7 that prevents the steering shaft from rotating is accommodated.

  The cylinder lock 4 is held in the body 9 by engaging the lock pin 10 urged by the spring 10 a so as to protrude from the outer peripheral surface of the cylinder outer 3 with the engagement hole 12 of the body 9. Further, the cylinder inner 1 is provided with a recess 17. When the cylinder inner 1 is positioned at the ACC position, the recess 17 faces the lock pin 10, and the lock pin 10 resists the force of the spring 10 a. The lock pin 10 can be detached from the engagement hole 12 of the body 9 by being pushed into the recess 17.

Japanese Patent Laid-Open No. 10-1026

  In the cylinder lock mounting structure in the conventional key cylinder device described above, when the cylinder lock 4 is mounted on the body 9, the cylinder inner 1 needs to be in the ACC position, but the rotation of the cylinder inner 1 is restricted. Therefore, it is necessary to attach the cylinder lock 4 to the body 9 while keeping the cylinder inner 4 rotated to the ACC position.

  For this reason, before the cylinder lock 4 is attached to the body 9, the cylinder inner 1 cannot be rotated to the ACC position in advance, and it is erroneously rotated to a rotational position other than the ACC position when being attached. Since the lock pin 10 is not pushed in, the cylinder lock 4 cannot be attached to the body 9, and the cylinder inner 4 needs to be rotated again to the ACC position, which makes it difficult to attach.

  In view of the above circumstances, an object of the present invention is to provide a cylinder lock mounting structure that allows a cylinder lock to be easily mounted on a body.

In order to achieve the above-described object, in the present invention, as a first invention, a cylinder lock configured with a cylinder inner and a cylinder outer, etc., which accommodates the cylinder inner movably in the axial direction with respect to the cylinder outer; A cylinder in a key cylinder device that holds the cylinder lock in the body by attaching the cylinder lock in the body and engaging a lock pin provided on the cylinder outer with an engaging portion of the body. In the lock mounting structure,
The cylinder inner has a recess for receiving the lock pin at a predetermined rotation position in a rotation area of the cylinder inner,
A notch portion that is formed to be connected to one end of the recess, and that engages the lock pin to prevent the cylinder inner from rotating by moving the cylinder inner in a key insertion direction at a predetermined rotation position. And a cylinder lock mounting structure in a key cylinder device.

As a second invention, in the key cylinder device of the first invention described above, the cylinder inner is provided with an operating groove formed in a circumferential direction so as to intersect the recess,
By moving the cylinder inner in the key pulling direction at a predetermined rotation position, the lock pin is disengaged from the notch and can be engaged with the operation groove, and the rotation of the cylinder inner is allowed. A cylinder in a key cylinder device, wherein a holding surface that prevents axial movement of the cylinder inner is provided on a side surface of the operating groove orthogonal to the axial direction at a rotational position other than a predetermined rotational position. We propose a lock mounting structure.

As a third invention, in the key cylinder device of the first or second invention described above, a biasing means for biasing the cylinder inner in the key insertion direction is provided in the cylinder outer,
The urging means pushes the cylinder inner in a key insertion direction at a predetermined rotation position, and the lock pin is engaged with the notch portion, whereby the cylinder to a rotation position other than the predetermined rotation position is obtained. Proposed is a cylinder lock mounting structure in a key cylinder device characterized in that the inner cylinder is prevented from rotating.

As a fourth invention, in the above-described key cylinder device of the third invention, a locking portion that is integrally provided at the rear end portion of the cylinder inner and protrudes in the key drawing direction;
The cylinder inner is accommodated in the cylinder outer in a state of being biased in the key insertion direction, and is engaged with the locking portion at a predetermined rotation position of the cylinder inner, thereby preventing the cylinder inner from returning to the lock position. And a sliding member
A cylinder lock mounting structure in a key cylinder device is proposed, wherein the cylinder inner is biased in the key insertion direction by abutting the tip of the slide member against the cylinder inner.

  As a fifth invention, in the key cylinder device of the above-described fourth invention, the abutting portion for pushing the slide member in the key pulling direction is accommodated in the inner periphery of the body by housing the cylinder lock in the body. A cylinder lock mounting structure in a key cylinder device characterized by being provided on a surface is proposed.

  In the cylinder lock in the key cylinder device of the present invention, when the cylinder inner is moved in the key insertion direction at the ACC position, the lock pin engages with the cut portion of the cylinder inner, so the cylinder inner is temporarily fixed at the ACC position in advance. Can do. Therefore, the cylinder lock can be easily attached to the body by previously rotating the cylinder inner to the predetermined rotation position.

  Further, by configuring as in the second invention, the cylinder inner cannot be moved in the key insertion direction except for the ACC position, so the cylinder lock is attached to the body while the cylinder inner is in the wrong rotation position. Can be prevented.

  Further, since the cylinder inner is biased in the key insertion direction by configuring as in the third aspect of the invention, the cylinder inner can be moved to the ACC position only by rotating the cylinder inner to the ACC position. It can be held in a temporarily fixed state.

  Moreover, by using the slide member of the 2-motion type key cylinder device as the urging member by configuring as in the fourth invention, the cylinder lock to the key cylinder device can be increased without increasing the number of parts. It can be set as the structure which improved the assembly | attachment property.

  Furthermore, by configuring as in the fifth invention, it is possible to prevent the urging force of the slide member from being applied to the cylinder inner when the cylinder lock is attached to the body.

Next, an embodiment in which the key cylinder device according to the present invention is implemented as an automobile steering lock device will be described.
1 is a longitudinal sectional view of a main part showing a cylinder lock mounting structure of a key cylinder device, FIG. 2A is a longitudinal sectional view of a main part showing a structure of a cylinder lock of the key cylinder device shown in FIG. 1, and FIG. FIG. 3 is a longitudinal sectional view of the main part showing a state when the cylinder inner of the cylinder lock of (a) is rotated to the ACC position, FIG. 3 is an explanatory view showing the front surface of the cylinder lock of the key cylinder device shown in FIG. FIG. 3 is an enlarged sectional view of the vicinity of a lock pin of the cylinder lock shown in FIG.

  5A is a plan view of the cylinder inner of the key cylinder device shown in FIG. 1, FIG. 5B is a side view with the main part taken as a cross section, and FIG. 5C is a cross-sectional view taken along line 5C-5C in FIG. 6A is a plan view with a cross section of a main portion showing a circular groove portion, and FIG. 6B is a side view showing a recess and an operating groove in the cylindrical portion of the cylinder inner shown in FIG.

  As shown in FIG. 1, the key cylinder device has a body 11 that can be attached to a steering post or the like. The body 11 houses a cylinder lock 16 including a cylinder inner 12, a cylinder outer 13, a lock seal 14 that protects the front surface (the left end in FIG. 1) of the cylinder inner 12, a two-motion plate 15 that is a slide member, and the like. ing.

  As shown in FIG. 2, the cylinder lock 16 includes a lock seal 14 and a lock seal 14 in a state where a two-motion plate 15 urged in the key insertion direction (right direction in FIG. 2) is attached to the slide groove 13 a. The cylinder inner 12 is sequentially inserted into the cylinder outer 13 from the rear end (right end in FIG. 2) side of the cylinder outer 13 and is held rotatably.

  As shown in FIG. 3, the cylinder inner 12 has a key insertion port 12 a on the front surface (left end surface in FIG. 2), and inserting the key 25 causes the cylinder inner 12 to be keyed with respect to the cylinder outer 13. From the lock position (LOCK position) where 25 can be inserted and removed, to the ACC position where power can be supplied to accessories, the ON position (ON position) which is the operating position, and the start position (ST position) for starting the engine And can be rotated.

  Referring again to FIG. 1, a lock member 18 that engages with a steering shaft (not shown) in the lock position to interlock with the rotation of the cylinder inner 12 via a cam 17 and prevents the rotation in the body 11. A rotary switch (not shown) that is disposed at the rear end of the body 11 and that is interlocked with the rotation of the cylinder inner 12 is accommodated.

  As shown in FIGS. 2 and 4, a protrusion 13 b is formed at the lower rear end of the cylinder outer 13, and the lower surface of the protrusion 13 b forms a part of the outer peripheral surface of the cylinder outer 13. Yes. As shown in FIG. 4, a protrusion 13b of the cylinder outer 13 is formed with a hole 13c that opens downward, and a lock pin 19 is provided in the hole 13c together with a coil spring 20 that is a pin urging means. After being housed, it is prevented from falling off by the presser plate 21 attached to the lower surface of the protrusion 13b. A mounting hole 13d having a downward opening is formed on the front end side of the protrusion 13b, and an elastic member 22 such as rubber is attached in a state of protruding slightly from the outer peripheral surface of the cylinder.

  The holding plate 21 is formed with an insertion hole 21a through which the outer end 19a (lower end in FIG. 4) of the lock pin 19 can pass. The outer end 19a of the lock pin 19 is inserted into the insertion hole 21a of the holding plate 21. It protrudes to the outside and can enter into an engagement hole 11a which is an engagement portion of the body 11. (Figure 1)

  On the other hand, a communication hole 13e is formed in the upper end of the protrusion 13b, that is, in the inner peripheral portion of the cylinder outer 13 to communicate with the hole 13c and pass the inner end 19b (upper end in FIG. 4) of the lock pin 19. . The communication hole 13e has a smaller diameter than the hole 13c, and a bottom surface portion 13f of the hole 13c is formed in the periphery thereof.

  Further, the lock pin 19 has a flange-shaped spring receiving portion 19c on the outer periphery of the center portion, and is locked by a coil spring 20 having a pressure expanding action provided between the spring receiving portion 19c and the bottom surface portion 13f of the hole portion 13c. The pin 19 is urged in a direction protruding from the outer surface of the cylinder outer 13 from the lower surface of the protrusion 13 b, that is, the insertion hole 21 a of the holding plate 21.

  On the other hand, as shown in FIG. 5, the cylinder inner 12 has a cylindrical shape, and a key insertion port 12a shown in FIG. 3 is formed in the axial center on the tip side (left side in FIG. 5). A protrusion 12b for attaching the seal 14 is provided. On the outer peripheral surface of the cylinder inner 12, tumbler holes 12c communicating with the key insertion port 12a with a predetermined interval in the axial direction from both sides are respectively bored. A biased tumbler 23 (FIG. 1) is arranged. Each tumbler 23 is inserted into the cylinder inner 12 by inserting a key 25 into the key insertion slot 12 a in the same manner as the known cylinder lock 16.

  On the rear end side (right side in FIG. 5) of the cylinder inner 12, a cylindrical portion 12d having a larger diameter than the front end side and a flange portion 12e protruding in a flange shape are provided. As shown in FIGS. 5 and 6, the cylindrical portion 12 d is formed with a concave portion 12 f that is opened on the outer peripheral surface, and the concave portion 12 f has a predetermined rotational position (in a rotational section of the cylinder inner 12). In this embodiment, by receiving the inner end 19b of the lock pin 19 at the ACC position), the outer end 19a of the lock pin 19 can be detached from the engagement hole 11a of the body 11.

  In addition, an operating groove 12g opened on the outer peripheral surface of the cylindrical portion 12d so as to intersect the recess 12f is formed in the circumferential direction. The operating groove 12g is shallower than the recess 12f, and the cylinder inner 12 is in a predetermined range with the outer end 19a of the lock pin 19 protruding into the engagement hole 11a of the body 11 (in this embodiment, starting from the lock position). To the position). As shown in FIG.5 (c), the bottom face of this operation groove part 12g comprises the press surface part 12h which contact | abuts to the inner end 19b of the lock pin 19, and hold | maintains the lock pin 19 in the state protruded to the body 11 side, When the inner end 19b of the lock pin 19 is positioned on the extrusion surface portion, the inner end 19b of the lock pin 19 abuts against the pressing surface portion 12h, and the outer end 19a of the lock pin 19 is engaged with the body 11. The cylinder lock 16 is held in the body 11 because it is kept in the state of entering the hole 11a.

  Further, the side surface formed in the axial direction of the operating groove portion 12g is a holding surface 12i that engages with the inner end 19b of the lock pin 19 to restrict the movement of the cylinder inner 12 in the axial direction. A notch 12j is formed at the center of the front end side (left side in FIG. 6) of the holding surface 12i. The notch 12j is formed so as to be connected to the recess 12f, and the cylinder inner 12 at the ACC position. Is pushed in the key insertion direction so that the inner end 19b of the lock pin 19 is engaged with the notch 12j in a state where it can be accommodated in the recess 12f. As shown in FIGS. 2B and 6A, the circumferential side surface of the notch 12j engages with the inner end 19b of the lock pin 19 and rotates from the ACC position of the cylinder inner 12. To play a role in regulating.

  Referring to FIG. 5 again, a locking portion 12k that protrudes in the key pulling direction is integrally provided on the front surface (left side in FIG. 5) of the flange-shaped portion 12e. This locking portion 12k forms a locking surface 12m along the axial direction on the lock position direction side, and a gently inclined tapered surface 12n is formed on the on position direction side.

  When the cylinder lock 16 is attached to the body 11 on the surface of the rear end side (right side in FIG. 5B) of the flange-shaped portion 12e, the cylinder inner portion other than the ACC comes into contact with the inner peripheral surface of the body 11. Protrusions 12p that prevent 12 from being pushed in the key insertion direction are provided. The convex portion 12p can move the cylinder inner 12 in the key insertion direction by engaging with a concave groove formed on the inner peripheral surface of the body 11 (not shown) at the ACC position.

  Further, a connecting portion 12r protruding rearward (right side in FIG. 6) is provided at the central portion of the bowl-shaped portion 12e. Therefore, as shown in FIG. 1, the connecting portion 12r is connected to a cam 17 rotatably attached to the body 11 so that the turning operation of the cylinder inner 12 is transmitted to a lock member 18 and a rotary switch (not shown). It has become. Further, as shown in FIG. 6B, a circular groove 12q that is recessed in an arc shape so as to surround the connecting portion 12r is formed around the connecting portion 12r of the flange-shaped portion 12e. When the inner 12 is moved in the key insertion direction, the tip of the cam 17 can be engaged.

  On the other hand, referring to FIG. 2 again, on the upper surface side (upper side in FIG. 2) of the cylinder outer 13, a two-motion plate 15 is slidably inserted into a slide groove portion 13a formed in the axial direction. The 2 motion plate 15 is urged by a return spring 24 in the key insertion direction, and the tip of the 2 motion plate 15 protrudes from the opening 13g of the slide groove 13a opened in the axial direction.

  Therefore, the cylinder lock 16 is configured such that the front end portion of the two motion plate 15 comes into contact with the flange-shaped portion 12 e of the cylinder inner 12. Accordingly, when the cylinder inner 12 is rotated from the lock position to the ACC position, as shown in FIG. 6A, the inner end 19b of the lock pin 19 is detached from the holding surface 12i of the operating groove 12g, and the notch 12j Therefore, the cylinder inner 12 is automatically pushed out in the key insertion direction by the two motion plates 15. As a result, the inner end 19b of the lock pin 19 is engaged with the notch 12j, and the cylinder inner 12 is held at the ACC position.

  According to the configuration of the above embodiment, the inner end 19b of the lock pin 19 can be accommodated in the recess 12f if the cylinder inner 12 is rotated to the ACC position in advance before the cylinder lock 16 is attached to the body 11. Since the state is maintained, the cylinder lock 16 can be easily attached to the body 11. Further, when the cylinder inner 12 is rotated to the ACC position, the flange 12e of the cylinder inner 12 is separated from the rear end of the cylinder outer 13 by the two motion plates 15, so that the cylinder lock 16 is attached to the body 11 from the appearance. It can be easily confirmed whether or not it is in a state where it can be attached. Therefore, it is possible to reliably prevent the cylinder lock 16 in the rotation position other than the ACC position from being attached to the body 11 by mistake.

  As shown in FIG. 7, the body 11 is provided with a cylindrical portion 11 b that is open so that a cylinder lock 16 can be inserted. An insertion groove 11c that engages with the lock pin 19 extends in the axial direction on the inner peripheral surface of the cylindrical portion 11b. The insertion groove 11c is connected to an inclined surface 11d that pushes the lock pin 19 in the radial direction (upward in FIG. 7) at an intermediate portion of the cylindrical portion 11b.

  Accordingly, when the cylinder lock 16 is inserted into the cylindrical portion 11b, the outer end 19a of the lock pin 19 abuts against the inclined surface 11d, so that the lock pin 19 is pushed against the biasing force of the coil spring 20, and the lock pin 19 19 is accommodated in the recess 12f.

When the cylinder lock 16 is inserted until the connecting portion 12r of the cylinder lock 16 is connected to the cam 17, the outer end 19a of the lock pin 19 is inserted into the engagement hole 11a formed on the lower surface side of the cylindrical portion 11b. Therefore, the lock 16 is protruded by the urging force of the coil spring 20 and is engaged with the engagement hole 11a, so that the cylinder lock 16 is integrally connected to the body 11.
In addition, since the elastic member 22 is attached in a state compressed by the inner peripheral surface of the cylindrical portion 11b, rattling between the cylinder lock 16 and the body 11 can be suppressed.

Further, an abutting portion 11 e that protrudes in the axial direction is provided on the inner peripheral surface of the cylindrical portion 11 b that faces the tip of the two motion plate 15. Therefore, when the cylinder lock 16 is inserted to the position where the outer end 19a of the lock pin 19 engages with the engagement hole 11a, the 2 motion plate 15 is pushed in the key pulling direction (left direction in FIG. 7), In a state where the cylinder lock 16 is attached to the body 11, the load in the key insertion direction of the 2 motion plate 15 is not applied to the cylinder inner 12.
Reference numeral 24 denotes a cam spring 24 for urging the cylinder inner 12 in the key pulling direction. The cylinder inner 12 can be pushed in the key insertion direction against the urging force of the cam spring 24 at the ACC position. It is like that.

  Next, an embodiment in which the present invention is implemented in an automobile steering lock device will be described. 8A is a cross-sectional view taken along line 8A-8A in the drawing of the key cylinder device shown in FIG. 1, and FIG. 8B is a two-motion plate 15 when the cylinder inner of the key cylinder device is in the locked position. FIG. 9A is a cross-sectional view of the main part taken along line 8B-8B in FIG. 9A showing the relationship between the locking portion and the locking portion, and FIG. 9A is a diagram showing how the key cylinder device shown in FIG. (B) is principal part sectional drawing in alignment with the 9B-9B line | wire in (a).

  10 is a longitudinal sectional view of the main part when the key cylinder device shown in FIG. 1 is in the ACC position, and FIG. 11A is a transverse sectional view taken along line 11A-11A in the drawing of the key cylinder device shown in FIG. , (B) is a cross-sectional view of the main part along line 11B-11B in (a) showing the relationship between the two motion plates and the locking part when the cylinder inner of the key cylinder device is at the ACC position, and FIG. It is a principal part longitudinal cross-sectional view which shows a state when a cylinder inner is pushed in the key insertion direction in the ACC position when rotating back from the ACC position to the LOCK position side. 13 is a cross-sectional view taken along line 13A-13A in the drawing of the key cylinder device shown in FIG. 12, and FIG. 13 (b) shows the relationship with the two motion plates when the cylinder inner of the key cylinder device is in the ACC position. It is principal part sectional drawing along the 13B-13B line in (a) which shows the relationship of a stop part.

  When the cylinder inner 12 is in the locked position, as shown in FIG. 8, the tip of the 2-motion plate 15 is positioned on the ACC position side (FIG. 8) on the tapered surface 12n of the locking portion 12k formed on the flange-shaped portion 12e of the cylinder inner 12. (A) in the clockwise direction), as shown in FIGS. 9 and 10, when the key 25 is inserted into the key insertion port 12a and the cylinder inner 12 is rotated to the ACC position, the taper Since the surface 12n pushes the tip of the 2-motion plate 15 and moves it in the key pulling direction, the cylinder inner 12 can be rotated regardless of the locking portion 12k. When the two-motion plate 15 gets over the locking portion 12k, it returns to its original position by the urging force of the return spring 24, and is in the state shown in FIG.

  After rotating from the lock position to the ACC position, the ACC position can be rotated without any trouble from the on position to the start position. As shown in FIG. 8A, the inner end 19b of the lock pin 19 faces the pressing surface portion 12h of the cylindrical portion 12d of the cylinder inner 12 at the lock position other than the ACC position, the on position, and the start position. Since it is in the position, the lock pin 19 cannot be pushed in, and the cylinder lock 16 cannot be detached from the body 11.

  On the other hand, when the cylinder inner 12 is located at the ACC position, the inner end 19b of the lock pin 19 faces the recess 12f of the cylindrical portion 12d of the cylinder inner 12 as shown in FIG. The cylinder lock 16 can be detached from the body 11 by inserting a tool or the like from the outer peripheral surface of the body 11 into the engagement hole 11a and pushing the lock pin 19 to a position where the lock pin 19 is received in the recess 12f. .

  In the ACC position, as shown in FIG. 11, the tip of the 2 motion plate 15 is locked to the locking surface 12m of the locking portion 12k formed on the flange-shaped portion 12e of the cylinder inner 12 (in FIG. 11A, Since they face each other in the counterclockwise direction), return rotation from the lock position to the ACC position is prevented.

  Therefore, when the cylinder inner 12 is rotated from the ACC position to the on position and the start position and then returned from the ACC position to the lock position, the key 25 is inserted in the key insertion direction as shown in FIG. Push in.

  As a result, the cylinder inner 12 is moved rearward against the urging force of the cam spring 24, and the locking portion 12k formed on the flange-shaped portion 12e of the cylinder inner 12 is locked as shown in FIG. Since the surface 12m is disengaged from the position where it engages with the tip of the lock plate, the cylinder inner 12 can be returned and rotated to the lock position.

  Therefore, when the cylinder inner 12 is turned back from the ON position or the like to the ACC position and the cylinder inner 12 is not pushed in the key insertion direction, the 2-motion plate 15 is engaged with the locking surface 12m of the locking portion 12k. Is prevented from rotating back to the locked position, and the cylinder inner 12 can be returned to the locked position and rotated only when the cylinder inner 12 is pushed in the key insertion direction.

  As a result, the cylinder inner 12 can be implemented as a two-motion type key cylinder device that can prevent the cylinder inner 12 from inadvertently returning to the lock position and rotating during operation of the automobile.

  In addition, when the cylinder lock 16 is detached from the body 11, the return spring 24 and the 2 motion plate 15 are used to urge the cylinder inner 12 in the key insertion direction, so that components necessary for the 2 motion mechanism are used. Thus, the attachment of the cylinder lock to the cylinder lock device can be improved.

  Therefore, it is possible to provide a two-motion type key cylinder device that is easy to mount the cylinder lock 16 and has a small number of parts.

  Although the embodiment has been described above, for example, the recess 12f provided in the cylinder inner 12 may be disposed and formed so as to receive the lock pin 19 at a rotational position other than the ACC position. Further, the lock pin 19 is not limited to the one provided below the cylinder outer 13 and can be provided at an arbitrary position.

  Furthermore, the formation location of the extrusion surface portion and the recess 12 f is not limited to the cylindrical portion 12 d of the cylinder inner 12, and can be formed at any location of the cylinder inner 12.

  The present invention is not limited to a steering lock device such as an automobile, but can be applied to any key cylinder device that requires a cylinder lock.

It is a principal part longitudinal cross-sectional view which shows the cylinder lock attachment structure of a key cylinder apparatus. (A) is a principal part longitudinal cross-sectional view which shows the structure of the cylinder lock of the key cylinder apparatus shown in FIG. 1, (b) shows a state when the cylinder inner of the cylinder lock of (a) is rotated to the ACC position. It is a principal part longitudinal cross-sectional view. It is explanatory drawing which shows the cylinder lock front surface of the key cylinder apparatus shown in FIG. It is an expanded sectional view of the lock pin vicinity of the cylinder lock shown to Fig.2 (a). (A) is a top view of the cylinder inner of the key cylinder apparatus shown in FIG. 1, (b) is a side view with the main part taken as a cross section, and (c) is a cross-sectional view taken along the line 5C-5C in (a). (A) which shows the recessed part and working groove in the cylindrical part of a cylinder inner shown in FIG. 5 is the top view which made the cross section the principal part which shows a circular groove part, (b) is a side view. It is a principal part longitudinal cross-sectional view which shows the state in the middle of attaching a cylinder lock to the key cylinder apparatus shown in FIG. (A) is a cross-sectional view taken along line 8A-8A in the drawing of the key cylinder device shown in FIG. 1, and (b) is a lock with the two motion plates when the cylinder inner of the key cylinder device is in the locked position. It is principal part sectional drawing along the 8B-8B line | wire in (a) which shows the relationship of a part. (A) is a cross-sectional view showing the operation of the two-motion plate and the locking portion while the key cylinder device shown in FIG. 8 is rotated from the lock position to the ACC position, and (b) is a view of 9B in (a). It is principal part sectional drawing along the -9B line. It is a principal part longitudinal cross-sectional view when the key cylinder apparatus shown in FIG. 1 exists in an ACC position. (A) is a cross-sectional view taken along line 11A-11A in the drawing of the key cylinder device shown in FIG. 10, and (b) is a lock with the two motion plates when the cylinder inner of the key cylinder device is at the ACC position. It is principal part sectional drawing along the 11B-11B line | wire in (a) which shows the relationship of a part. It is a principal part longitudinal cross-sectional view which shows a state when a cylinder inner is pushed in the key insertion direction in the ACC position when rotating back from the ACC position to the LOCK position side. It is a cross-sectional view along line 13A-13A in the drawing of the key cylinder device shown in FIG. 12, (b) is the relationship between the two motion plates and the locking portion when the cylinder inner of the key cylinder device is in the ACC position. It is principal part sectional drawing along the 13B-13B line | wire in (a) which shows this. (A) of the conventional key cylinder apparatus is principal part sectional drawing, (b) is a cross-sectional view along 14B-14B in (a).

Explanation of symbols

11 Body 11a Engagement hole 11e Abutting part 12 Cylinder inner 13 Cylinder outer 16 Cylinder lock 12f Recessed part 12g Actuation groove part 12i Holding surface 12j Notch part 12k Locking part 15 2 Motion plate 19 Lock pin 24 Coil spring

Claims (5)

A cylinder lock comprising a cylinder inner and a cylinder outer, etc., in which the cylinder inner is accommodated so as to be movable in the axial direction with respect to the cylinder outer, and a lock pin provided in the cylinder outer, the cylinder lock being mounted in the body In the mounting structure of the cylinder lock in the key cylinder device in which the cylinder lock is held in the body by engaging the engaging portion of the body.
The cylinder inner has a recess for receiving the lock pin at a predetermined rotation position in a rotation area of the cylinder inner,
A notch portion that is formed to be connected to one end portion of the recess, and that engages with the lock pin to prevent the cylinder inner from rotating by moving the cylinder inner in a key insertion direction at a predetermined rotation position. And a cylinder lock mounting structure in a key cylinder device. The cylinder inner is provided with an operating groove formed in a circumferential direction so as to intersect the recess,
By moving the cylinder inner in the key pulling direction at a predetermined rotation position, the lock pin is disengaged from the notch and can be engaged with the operation groove, and the rotation of the cylinder inner is allowed. 2. The holding surface for preventing the cylinder inner from moving in the axial direction at a rotational position other than the predetermined rotational position is provided on a side surface of the operation groove orthogonal to the axial direction. Cylinder lock mounting structure in the key cylinder device. An urging means for urging the cylinder inner in the key insertion direction is provided in the cylinder outer,
The urging means pushes the cylinder inner in a key insertion direction at a predetermined rotation position, and the lock pin is engaged with the notch portion, whereby the cylinder to a rotation position other than the predetermined rotation position is obtained. The structure for mounting a cylinder lock in a key cylinder device according to claim 1 or 2, wherein rotation of the inner is prevented. A locking portion provided integrally with a rear end portion of the cylinder inner and projecting in a key pulling direction;
The cylinder inner is accommodated in the cylinder outer in a state of being biased in the key insertion direction, and is engaged with the locking portion at a predetermined rotation position of the cylinder inner, thereby preventing the cylinder inner from returning to the lock position. And a sliding member
4. A cylinder lock mounting structure in a key cylinder device according to claim 3, wherein the cylinder inner is urged in the key insertion direction by abutting the tip of the slide member against the cylinder inner.   5. The key cylinder device according to claim 4, wherein a contact portion for pushing the slide member in a key pulling direction is provided on an inner peripheral surface of the body by housing the cylinder lock in the body. Cylinder lock mounting structure.

Images