JP4104159B2 - Lock handle device for key handle insertion / removal type door - Google Patents

Description

According to the present invention, the key handle used for the door opening / closing operation is rotated in the forward / reverse direction to rotate the lock shaft connected to the key handle to unlock the door. A lock handle for a key handle insertion / removal type door, wherein the lock shaft is automatically locked with respect to the seat body by removing the key handle, and the lock is immediately released by inserting the key handle. It relates to the device.

A conventional key handle insertion / removal type door lock handle device has a connecting flange formed at the front end of a locking shaft rotatably fitted in a bearing hole of a receiving body fixed to a door panel, and the key handle is attached to the connecting flange. An insertion hole of the operating protrusion and a handle engaging / disengaging groove for engaging and disengaging the operating protrusion are provided in a direction transverse to the rotation center axis of the locking shaft, and the bearing hole is formed in the mounting flange formed at the front end of the seat body. A pin receiving small hole is provided in the axial direction around the lock shaft, and another pin receiving small hole is provided in the connecting flange of the locking shaft in the axial direction corresponding to the pin receiving small hole on the mounting flange side, A small-diameter front end portion of the drive pin inserted into the pin receiving small hole on the connecting flange side by urging the driven pin inserted into the pin receiving small hole on the mounting flange side into the compression coil spring in the forward direction. The handle A key code recess for projecting into the groove and moving the rear end of the drive pin back on the contact line between the rear end surface of the connecting flange and the front end surface of the mounting flange is formed on the operating protrusion of the key handle. It is formed on the back side (see Patent Document 1).

In the door lock handle device incorporating such an axial pin tumbler type cylinder locking mechanism, there is a gap that exists between the outer diameter of the drive pin and the driven pin and the inner diameter of the small pin receiving hole. When the allowable range is exceeded, the locking shaft is locked or unlocked with respect to the seat body even though the locking shaft is not rotated to the normal locking position or unlocking position. There is a risk of malfunctioning of the locking pin. In addition, when the cylinder lock mechanism is incorporated, there is a problem that the total cost increases.

Japanese Patent No. 2856318

The problem of the present invention is that it is possible to obtain a large number of key differences as in the case of the cylinder lock mechanism, clear the malfunction problem of the lock pin described above, and reduce the total cost. A lock handle device is provided.

The lock handle device for a key handle pull-out type door according to the present invention includes a receiving body 2 fixed to the door panel 1, a locking shaft 3 rotatably supported in a bearing hole 21 of the receiving body 2, and the receiving body. A mounting flange 4 projecting from the front end of the seat body 2, a connection flange 5 projecting from the front end of the locking shaft 3 and having an insertion port 14 provided on the side surface, and a rear side of the connection flange 5 from the insertion port 14 A key handle 7 in which an operating protrusion 8 is detachably inserted into a handle engaging / removing groove 6 formed on an end surface and a locking recess 9 on the front end surface of the mounting flange 4 are fitted into the handle engaging / removing groove 6. A lock plate 10 having a plurality of lock pin-like protrusions 12 that can be engaged and disengaged provided on the front end surface with a change in protrusion length, an inner bottom surface of the locking recess 9, and a rear end surface of the lock plate 10 It consists of a compression coil spring 11 inserted between them.

A plurality of key code recesses 13 are arranged on the back side of the operating protrusion 8 of the key handle 7 at a position corresponding to the lock pin-like protrusion 12 with a change in depth, and the mounting An inner peripheral surface 15 of the locking recess 9 of the flange 4 engages with a locking edge 16 on the outer peripheral edge of the locking plate 10 to rotate the locking plate 10 with respect to the mounting flange 4. The locking receiving portion 18 is formed to be disabled, and at least one of the plurality of lock pin-like protrusions 12 is disposed so as to be able to contact the inner wall surface 19 of the handle engagement / disengagement groove 6. A relief groove 17 through which the locking edge 16 of the locking plate 10 can pass is formed on the inner peripheral surface 15 of the locking recess 9 of the mounting flange 4.

When the operating protrusion 8 of the key handle 7 is extracted from the handle engaging / disengaging groove 6 of the connecting flange 5, the locking plate 10 is advanced by the urging force of the compression coil spring 11, and the lock pin-like protruding portion 12 is engaged with the handle engaging / removing groove 6, and the locking edge 16 of the locking plate 10 is engaged with the locking receiving portion 18 of the locking recess 9, whereby the locking shaft 3 is While being non-rotatably locked with respect to the seat body 2,
When the operating protrusion 8 of the key handle 7 is inserted into the handle engagement / disengagement groove 6 of the connecting flange 5 to a predetermined depth, the lock pin-shaped protrusion 12 of the locking plate 10 is connected to the operating protrusion 8. When pressed by the key code recess 13, the front end of the lock pin-like protrusion 12 moves backward on the contact line between the front end surface 23 of the mounting flange 4 and the rear end surface 20 of the connecting flange 5, and the locking The restraining edge 16 of the plate 10 moves backward to a position where it can enter the escape groove 17 of the locking recess 9.

In the present invention, when the operating protrusion 8 of the key handle 7 is extracted from the handle engaging / disengaging groove 6 of the connecting flange 5, the lock pin-like protrusion 12 of the locking plate 10 moved forward by the urging force of the compression coil spring 11 is used as the handle. The locking shaft 3 is rotated with respect to the seat body 2 by engaging the locking groove 16 with the locking edge 16 of the locking plate 10 and the locking receiving portion 18 of the locking recess 9. When the operating protrusion 8 is inserted into the handle engagement / removal groove 6 to a predetermined depth, the lock pin-like protrusion 12 of the locking plate 10 is used for the key code of the operating protrusion 8. When the recess 13 is pushed and moved backward, the front end of the lock pin-shaped protrusion 12 reaches the contact line between the front end surface 23 of the mounting flange 4 and the rear end surface 20 of the connecting flange 5, and the locking plate 10 is restrained. Edge 16 enters relief groove 17 of locking recess 9 This is the same as the cylinder lock mechanism incorporated by changing the length of the plurality of lock pin-like protrusions 12 and the depth of the plurality of key code recesses 13. As such, many key differences can be obtained.

The key code recess 13 is formed in an appropriate position by controlled machining, and the locking plate 10 is guided by the inner peripheral surface 15 of the lock recess 9 to move back and forth. 13 and the lock pin-shaped protrusion 12 of the locking plate 10 are arranged at appropriate positions where the center lines are aligned in both the locked position and the unlocked position, and the above-described malfunction of the locking pin occurs. There is nothing.
Further, as compared with the conventional cylinder lock mechanism using a combination of two lock pins such as a driven pin and a drive pin, the lock pin-shaped protrusion 12 of the lock plate 10 has the key code recess 13 of the operating protrusion 8. In the door lock handle device of the present invention to be used, the total manufacturing cost can be reduced.

In the lock handle device for the key handle pull-out type door of the illustrated embodiment, a lock housing part 22 is formed on the back side of the mounting flange 4, and a fixing case 27 for the lock unit 24 housed in the lock housing part 22 from the back side. Is fixed to the mounting flange 4 by a fixing screw 43, and an eccentric cam projection 45 is provided at the rear end portion of the rotor 29 rotatably accommodated in the fixing case 27, and is formed in the transverse direction at the rear end portion of the fixing case 27. The lock plate 32 is accommodated in the guide groove 57, the eccentric cam projection 45 is engaged with the cam groove 46 in the crossing direction of the lock plate 32, and the rotor 29 is moved by the internal lock mechanism of the lock unit 24. A lock receiving groove 35 is formed in the mounting flange 4 to be engaged with the bent plate portion 34 of the lock plate 32 when the fixed case 27 is locked so as not to rotate. When the rotor 29 is locked against the fixed case 27 by the internal lock mechanism of the lock unit 24, the lock receiving hole 47 with which the bent plate portion 34 of the lock plate 32 engages is connected to the lock receiving hole 47. A standby groove 51 formed on a side surface of the flange 5 and engaged with the bent plate portion 34 of the lock plate 32 when the lock of the rotor 29 by the internal lock mechanism of the lock unit is released is formed in the fixed case. 27 is formed on the side surface of the lock plate unit 24, and when the lock of the rotor 29 by the internal lock mechanism of the lock unit 24 is released, a standby hole 52 with which the bent plate portion 34 of the lock plate 32 is engaged is formed in the mounting flange 4. It is formed on the side.

When the stopper plate 30 fixed to the distal end portion of the locking shaft 3 engages with a receiving portion (not shown) on the stationary frame body side and the door panel 1 is in the locked state, the locking recess 9 of the mounting flange 4 is secured. And the handle engaging / disengaging groove 6 of the connecting flange 5 are in a position aligned with each other. Therefore, when the operating protrusion 8 of the key handle 7 is removed from the handle engaging / disengaging groove 6, the locking plate 10 slides forward by the bias of the compression coil spring 11 as shown in FIG. Since the portion 12 enters the handle engagement / disengagement groove 6 and a part of the lock pin-shaped protrusion 12 contacts the inner wall surface 19 of the handle engagement / disengagement groove 6, the connecting flange 5 and the locking shaft 3 are interposed by the locking plate 10. The seat body 2 is locked so as not to rotate.

A key (not shown) is inserted into the key hole 44 of the rotor 29 of the lock unit 24, and the internal lock mechanism is driven by the key to unlock the rotor 29 with respect to the fixed case 27. When the locking plate 32 is rotated only in the locking direction, the lock plate 32 slides downward along the guide groove 57 of the fixed case 27 by the cooperative action of the eccentric cam protrusion 45 of the rotor 29 and the cam groove 46 of the lock plate 32 (FIG. 5), the bent plate portion 34 of the lock plate 32 is engaged with the lock receiving groove 35 of the mounting flange 4 and the lock receiving hole 47 of the connecting flange 5, so that the locking shaft 3 is added to the lock plate 10. The locking plate 32 is also locked so as not to rotate with respect to the seat body 2.

On the other hand, as shown in FIG. 40, when the key handle 7 is inserted into the handle engagement / disengagement groove 6 from the insertion port 14 of the connecting flange 5 to a predetermined depth, the inner surface of the key code recess 13 of the operating protrusion 8 is shaped like a lock pin. In order to push the front end round head surface of the projecting portion 12, the locking plate 10 is retracted against the bias of the compression coil spring 11, and the front end of the lock pin-shaped projecting portion 12 is connected to the front end surface 23 of the mounting flange 4 and the connecting flange. 5 moves to the contact line with the rear end surface 20 and retracts to a position where the locking edge 16 of the locking plate 10 can enter the escape groove 17 of the locking recess 9.
Then, when the key is inserted into the key hole 44 of the lock unit 24 to unlock the rotor 29 with respect to the fixed case 27 and the rotor 29 is rotated by a predetermined angle in the unlocking direction, the eccentric cam of the rotor 29 is obtained. Due to the cooperative action of the protrusion 45 and the cam groove 46 of the lock plate 32, the lock plate 32 slides upward along the guide groove 57 of the fixed case 27 (the position indicated by the solid line in FIG. 40), and the bent plate portion of the lock plate 32. 34 escapes from the lock receiving groove 35 of the mounting flange 4 and the lock receiving hole 47 of the connecting flange 5 and engages with the standby groove 51 of the fixed case 37 and the standby hole 52 of the mounting flange 4. The lock on the seat body 2 through the plate 32 is also released.

When the key handle 7 is rotated in the unlocking direction at this stage, the locking edge 16 of the locking plate 10 enters the escape groove 17 of the locking recess 9 so that the locking shaft 3 is rotated to the unlocking position. The stopper plate 30 is detached from the receiving portion on the fixed main body side, the door panel 1 is unlocked from the fixed main body, and the door panel 1 is opened by pulling the key handle 7 forward.

In the illustrated embodiment, a pair of upper and lower protrusions 38 are provided on the rear end surface of the mounting flange 4, and the door panel 1 is fitted with the through hole 40 into which the protrusion 38 is fitted, and the seat body 2. A through hole 41 is provided. A sheet 42 made of a resilient member is inserted between the mounting flange 4 and the door panel 1, and a through hole 60 in which the seat body 2 is fitted in the seat 42 and a through hole 61 in which the projection 38 is fitted. Is provided.

The seat body 2 is fastened and fixed to the door panel 1 by a nut 62 screwed to an outer peripheral thread portion, and a spring washer 63 is inserted between the rear surface of the door panel 1 and the nut 62. The locking shaft 3 is fitted in the bearing hole 21 of the receiving body 2, and a retaining C-ring 65 is fitted in an annular groove 64 provided at the base of the distal end angular shaft portion of the locking shaft 3. A stopper plate 30 is fitted to the front end angular shaft portion and fixed by a bolt 31.

Further, in order to be able to use either the left rotation stop type or the right rotation stop type, two arc-shaped grooves 26 are provided symmetrically with respect to the bearing hole 21 on the front end surface of the mounting flange. The protrusion 25 on the rear end face 20 of the flange 5 engages with the arc-shaped groove 26 to restrict the rotation of the locking shaft 3 to a predetermined angle. The locking recess 9 of the mounting flange 4 has a so-called oval cross-sectional shape with both left and right sides cut away, and the bearing hole 21 is open at the center. The locking plate 10 also has a shape that matches the locking recess 9. Two lock pin-shaped protrusions 12 are provided on the left and right sides. An insertion hole 66 for the locking shaft 3 is formed in an intermediate portion of the lock pin-like projecting portions 12, so that the locking plate 10 can slide in the length direction of the locking shaft 3.

When the lock handle 3 is rotated by turning the key handle 7, the front end portions of some or all of the lock pin-like projecting portions 12 are arranged depending on the depth of the key code recess 13 and the length of the lock pin-like projecting portion 12. The locking plate 10 remains in the handle engaging / disengaging groove 6, and the side surface of the tip is pushed by the inner wall surface 19 of the handle engaging / disengaging groove 6. Become. At this time, the locking edge 16 of the locking plate 10 is disengaged from the engagement of the locking recess 9 with the locking receiving portion 18 and enters the escape groove 17 on the inner peripheral surface 15 of the locking recess 9 to lock the locking plate 9. The rotation of the stop plate 10 is allowed.
In the illustrated embodiment, the relief groove 17 is formed on a pair of left and right parallel sides of the oval cross section of the locking recess 9, and the restraining receiving portion 18 is formed by a pair of upper and lower arc sides of the oval cross section. Has been.

A ring-shaped groove 68 is provided on the peripheral side surface of the locking shaft 3, and an O-ring 68 is fitted in the ring-shaped groove 67. A constant frictional force is obtained by the O-ring 68 coming into contact with the inner wall of the seat body 2, and the key handle 7 is maintained in the rotational position even if the force applied when the key handle 7 is rotated is removed. It can be done and will not return to the locked state.

In the present embodiment, mounting ears 56 are formed on the left and right end surfaces of the fixing case 37 of the lock unit 34, and a stepped portion in which the mounting ears 56 are housed at the rear end of the lock housing part 32. 55 is formed. An insertion hole 59 for the fixing screw 43 is formed in the mounting ear portion 56. A screw hole 54 into which the fixing screw 43 is screwed is formed in the mounting boss portion 53 provided continuously with the step portion 56.
A positioning projection 48 is formed on the lower surface of the rear end of the fixed case 37, and a receiving groove 49 into which the positioning projection 48 is fitted is formed on the back surface of the mounting flange 4.
The retaining member 36 attached to the rear end portion of the rotor 39 is engaged with a locking portion 39 formed on the fixed case 27, and the rotor 29 is assembled so that it cannot be removed from the fixed case 27.
A circular hole 50 into which the front end portion of the rotor 29 is fitted is formed at the front end portion of the lock accommodating portion 22.

It is a front view in the key handle extraction state of the lock handle device for key handle insertion / removal type doors concerning one example of the present invention. It is a right view of the lock handle apparatus for doors of FIG. It is a bottom view of the lock handle device for doors of FIG. It is a rear view of the lock handle device for doors of FIG. It is the sectional view on the AA line of the lock handle apparatus for doors of FIG. It is the BB sectional view taken on the line of the door lock handle apparatus of FIG. It is CC sectional view taken on the line of the lock handle apparatus for doors of FIG. It is a front view of the seat main body used for the lock handle apparatus for doors of FIG. It is a right view of the receiving body of FIG. It is a rear view of the seat main body of FIG. It is a bottom view of the seat main body of FIG. It is the DD sectional view taken on the line of the seat main body of FIG. It is the EE sectional view taken on the line of the seat main body of FIG. It is a front view of the locking shaft used for the lock handle apparatus for doors of FIG. It is a right view of the locking shaft of FIG. It is a rear view of the locking shaft of FIG. It is a bottom view of the locking shaft of FIG. It is the FF sectional view taken on the line of the locking shaft of FIG. It is the GG sectional view taken on the line of the locking shaft of FIG. It is a front view of the locking plate used for the lock handle apparatus for doors of FIG. It is a rear view of the locking plate of FIG. It is a bottom view of the locking plate of FIG. It is a left view of the locking plate of FIG. It is a right view of the locking plate of FIG. It is the HH sectional view taken on the line of the locking plate of FIG. It is a front view of the fixing case of the lock unit used for the lock handle apparatus for doors of FIG. It is a rear view of the fixed case of FIG. It is a bottom view of the fixed case of FIG. It is the II sectional view taken on the line of the fixing case of FIG. It is the JJ sectional view taken on the line of the fixed case of FIG. It is a front view of the lock board used for the lock handle apparatus for doors of FIG. FIG. 32 is a right side view of the lock plate of FIG. 31. FIG. 32 is a bottom view of the lock plate of FIG. 31. It is a front view of the key handle used for the lock handle apparatus for doors of FIG. It is a rear view of the key handle of FIG. FIG. 35 is a sectional view of the key handle of FIG. 34 taken along the line KK. It is a top view of the key handle of FIG. FIG. 35 is a cross-sectional view of the key handle of FIG. 34 taken along line LL. FIG. 35 is a cross-sectional view of the key handle of FIG. 34 taken along the line MM. It is a longitudinal cross-sectional view in the insertion state of the key handle of the lock handle apparatus for doors of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door panel 2 Seat body 3 Locking shaft 4 Mounting flange of seat body 5 Connecting flange of locking shaft 6 Handle engagement / disengagement groove 7 Key handle 8 Actuator of key handle 9 Recess 10 for locking of mounting flange 10 Locking plate DESCRIPTION OF SYMBOLS 11 Compression coil spring 12 Locking pin-like protrusion part 13 of a locking plate Key code recessed part 14 of an operation | movement protrusion Inserting port 15 of a connection flange 15 Inner peripheral surface 16 of a locking recessed part Locking edge 17 of a locking plate Relief groove 18 Locking recess receiving portion 19 Inner wall surface 20 of the handle engagement / disengagement groove Rear end surface 21 of the connecting flange Bearing hole 22 of the receiving body Locking receiving portion 23 of the mounting flange Front end surface 24 of the mounting flange Locking unit 25 Connection Flange rotation angle restricting projection 26 Mounting flange arcuate groove 27 Locking unit fixing case 29 Locking unit rotor 30 Clasp plate 31 Clasp Locking screw 32 Lock plate 34 Bending plate portion 35 of the lock plate Lock receiving groove 36 of the mounting flange 36 Retaining member 38 of the mounting flange Non-rotating projection 39 of the mounting flange Locking portion 40 for the retaining member Fitting of the non-rotating projection Insertion hole 41 Insertion hole 42 of seat body 42 Seat 43 Fixing screw for fixing case 44 Rotor key hole 45 Rotor eccentric cam protrusion 46 Lock plate cam groove 47 Connecting flange lock receiving hole 48 Fixing case Positioning projections 49 Positioning projection insertion receiving grooves 50 Rotor insertion holes 51 Fixed case standby grooves 52 Mounting flange standby holes 53 Locking housing mounting bosses 54 Locking screw holes 55 Locking storage holes Step portion 56 Fixed case mounting ear 57 Lock plate guide groove 58 Retaining member insertion portion 59 Fixed case screw insertion hole 60 Seat receiving body through hole 61 Seat locking projection through hole 62 Seat receiving body fixing nut 63 Spring washer 64 Locking shaft annular groove 65 Retaining washer 66 Locking plate locking shaft insertion hole 67 Ring-shaped groove 68 Sealing ring

Claims (1)

A receiving body 2 fixed to the door panel 1, a locking shaft 3 rotatably supported in a bearing hole 21 of the receiving body 2, and a mounting flange 4 protruding from the front end of the receiving body 2 The operating flange 8 protrudes from the front end of the locking shaft 3 and has a connecting flange 5 provided with an insertion port 14 on a side surface, and a handle engaging / disengaging groove 6 formed on the rear end surface of the connecting flange 5 from the insertion port 14. And a plurality of lock pin-like protrusions 12 that are fitted into the lock recesses 9 on the front end face of the mounting flange 4 and that can be engaged / disengaged in the handle engagement / removal groove 6. A lock plate 10 provided on the front end surface with a change in the protruding length, and a compression coil spring 11 inserted between the inner bottom surface of the locking recess 9 and the rear end surface of the lock plate 10,
A plurality of key code recesses 13 are arranged on the back side of the operating protrusion 8 of the key handle 7 at a position corresponding to the lock pin-like protrusion 12 with a change in depth, and the mounting An inner peripheral surface 15 of the locking recess 9 of the flange 4 engages with a locking edge 16 on the outer peripheral edge of the locking plate 10 to rotate the locking plate 10 with respect to the mounting flange 4. The locking receiving portion 18 is formed to be disabled, and at least one of the plurality of lock pin-like protrusions 12 is disposed so as to be able to contact the inner wall surface 19 of the handle engagement / disengagement groove 6. A relief groove 17 through which the locking edge 16 of the locking plate 10 can pass is formed on the inner peripheral surface 15 of the locking recess 9 of the mounting flange 4.
When the operating protrusion 8 of the key handle 7 is extracted from the handle engaging / disengaging groove 6 of the connecting flange 5, the locking plate 10 is advanced by the urging force of the compression coil spring 11, and the lock pin-like protruding portion 12 is engaged with the handle engaging / removing groove 6, and the locking edge 16 of the locking plate 10 is engaged with the locking receiving portion 18 of the locking recess 9, whereby the locking shaft 3 is While being non-rotatably locked with respect to the seat body 2,
When the operating protrusion 8 of the key handle 7 is inserted into the handle engagement / disengagement groove 6 of the connecting flange 5 to a predetermined depth, the lock pin-shaped protrusion 12 of the locking plate 10 is connected to the operating protrusion 8. When pressed by the key code recess 13, the front end of the lock pin-like protrusion 12 moves backward on the contact line between the front end surface 23 of the mounting flange 4 and the rear end surface 20 of the connecting flange 5, and the locking A lock handle device for a key handle insertion / removal type door, wherein the restraining edge portion 16 of the plate 10 moves backward to a position where it can enter the escape groove 17 of the locking recess 9.

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