JPH1096351A - Rocking lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rocking lock device into which a-pushbutton lock is incorporated in such a way that the moving direction of a slider coincides with that of a lock member. SOLUTION: A rocking lock device includes a pushbutton lock 14 which has a plurality of push buttons 54, 55, provided on the front surface of a casing 8 as locking mechanisms in such a way that their pushing direction coincides with the rocking direction of a lock arm 10, and which has a slider 56 that moves freely in a direction perpendicular to the rocking direction of the lock arm 10 and that is permitted to move to the unlock side only when the predetermined unlocking push button 54 is pressed. The lock member 11 is connected to the slider 56 in such a way that as the slider 56 moves to the unlock side, the lock member 11 is released from the lock arm 10, and an intermediate operating member 12 which causes the slider 56 to be moved to the unlock side by the operation of the casing 8 from the outside is connected to the slider 56.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oscillating locking device incorporating a locking mechanism comprising a push button lock.

[0002]

2. Description of the Related Art Conventionally, as a swing type locking device (see FIG. 14) for locking a door lever of a container mounted on a rear portion of a truck, for example, a locking device as shown in FIG. 18 is known. This conventional swing type locking device 101 includes a lock arm 1 having a hook portion 103 at one end at a vertically central portion of a casing 102 fixed to the surface of a door.
04 is pivotally attached to the front and back of the casing 102 via the pivot 105 so as to move in the direction orthogonal to the swing direction of the lock arm 104 to be disengaged from the other end of the arm 104. A lock member 106 for preventing or allowing the swing of the arm 104 is provided in the casing 102.

The hook 103 of the lock arm 104 is
In the locked state shown in FIG. 18, the rotation of the lever 107 is restricted by being hooked on the door lever 107 shown by a virtual line in FIG.
(To the right of the door), the hook portion 103 comes off the door lever 107 and the door lever 107
Can be rotated.

[0004] A cylinder lock (locking mechanism) 109 for moving the lock member 106 so as to be detached from the lock arm 104 by an unlocking operation using a key 108 is incorporated into a lower portion of the casing 102. The lock member 106 bent in an L-shape as viewed from the side is fixed to a rotating shaft 110 protruding from the back side end of the lock member 106.

Accordingly, the pivot shaft 110 of the cylinder lock 109 is pivoted to the left, for example, with the key 108, and the cylinder lock 109 is rotated.
In the locked state, the lock member 106 is located on the back side of the other end of the lock arm 104, and the swing of the arm 104 is regulated. On the other hand, the rotation shaft 110 of the cylinder lock 109 is moved to the right by the key 108. When the cylinder lock 109 is turned to the unlocked state, the lock member 106 is moved to the lock arm 104.
And the arm 104 is allowed to swing.

[0006]

In the above-described conventional rocking type locking device 101, since the locking and unlocking of the lock member 106 are all performed by operating the key 108, it is necessary to take out the key 108 from the pocket for each locking and unlocking operation. Therefore, the operation is complicated, and when the key 108 is lost, the lock member 106 can no longer be unlocked.

Therefore, instead of the cylinder lock 109, for example, Japanese Utility Model Publication No. 60-15889 and Japanese Utility Model Publication
It is conceivable to employ a keyless locking mechanism including a push button lock described in Japanese Patent Application Laid-Open No. 0-15890. However, the push-button lock described in the above publication is
It is mainly developed as a padlock, and since the application method to other locking devices varies widely, it is not always easy to incorporate such a locking mechanism into the rocking type locking device.

That is, this type of push button lock is composed of a plurality of push buttons protruding outside the lock case, and a predetermined unlocking push button which is movable in a direction orthogonal to the pushing direction of the push button. And a slider that is allowed to move to the unlocking side only when is pressed. For this reason,
When assembling such a push-button lock into the casing 102 of the swing type locking device 101, for example, if the push-button is incorporated so as to be located on one of the left and right side surfaces of the casing 102, the moving direction of the slider is Since the moving direction of the lock member 106 is perpendicular to the pushing direction and the direction of swing of the lock arm 104, the moving direction of the slider and the moving direction of the lock member 106 are perpendicular to each other. Will not match.

Therefore, in order to interlock the slider and the lock member 106 which move in the directions perpendicular to each other, it is necessary to employ a complicated interlocking mechanism such as a specially shaped cam mechanism or gear mechanism between these members. When the push-button lock is used in the swing type locking device, the structure becomes complicated and the cost increases. On the other hand, in the push button lock described in the above publication, the push buttons are arranged in two rows in a straight line, and the sliders surrounding these push buttons are arranged movably in the width direction. Clearance for moving is required, and there is a limit to reducing the width of the locking mechanism in this regard.

Further, when the push buttons are made smaller or the vertical interval between the push buttons is reduced, when the desired push button is pressed by a finger for unlocking operation, the same finger is caught by the adjacent push button. There is a possibility that an unnecessary push button may be pushed, and therefore, there is a limit to downsizing the locking mechanism in the vertical dimension. For this reason, even if this kind of push-button lock is adopted for the swing type locking mechanism 101, it is difficult to adopt the push-button lock because the entire device is enlarged.

In view of such circumstances, the present invention incorporates a push-button lock into the surface of the casing so that the moving direction of the slider in the push-button lock and the moving direction of the lock member for engaging and disengaging the lock arm are matched. Accordingly, a first object is to obtain a rocking type locking device having a push button lock as simply as possible. Further, the present invention, in a rocking type locking device having such a push button lock, without making the push button operation at the time of unlocking difficult,
A second object is to make the casing as compact as possible.

[0012]

In order to achieve the above object,
The present invention has taken the following technical measures. That is, according to the present invention, the locking mechanism includes a plurality of push buttons provided on the front surface side of the casing such that the pressing operation direction matches the rocking direction of the lock arm, and the locking mechanism moves in a direction orthogonal to the rocking direction of the lock arm. A slider that is movable and is allowed to move to the unlocking side only when a predetermined unlocking push button is pressed,
The lock member is connected to the slider so that the lock member is detached from the lock arm with the movement of the slider to the unlocking side, and the slider is operated by an operation from the outside of the casing. An intermediate operating member for moving to the unlocking side is connected to the slider (claim 1).

In the present invention, the plurality of push buttons are provided on the front surface of the casing so that the pushing operation direction coincides with the swing direction of the lock arm, and the moving direction of the slider is the swing direction of the lock arm. Therefore, the direction of movement of the slider coincides with the direction of movement of the lock member. For this reason, even if a complicated interlocking mechanism such as a specially-shaped cam mechanism or a gear mechanism is not provided between the slider and the lock member, the lock member is disengaged from the lock arm with the movement of the slider. And an intermediate operating member for moving the slider to the unlocking side by an operation from the outside of the casing can be connected to the slider, so that the push button lock can be easily incorporated into the casing of the rocking type locking device.

Further, in this case, since each push button is provided on the front surface side of the casing, the pushing operation of each button is simplified as compared with the case where each push button is provided on the side surface of the casing. In the present invention, the lock member can be directly connected to the slider, or can be interlocked and connected to the slider via an intermediate operating member disposed between the locking mechanism and the lock arm. ).

In the latter case, the intermediate operating member is urged to always return to the neutral position intermediate the two sides even when the intermediate operating member is operated to the lock side or the unlock side, The slider is always urged to the locking side where all the push buttons can be pushed and operated, and contacts the intermediate operating member in the neutral position on the locking side and does not contact the same member on the non-locking side. It is preferable that the intermediate operation member is connected with a play (claim 3).

In this case, in a state where the slider is urged to the locking side where all the push buttons can be pushed,
Since only the locking side is in contact with the intermediate operating member in the neutral position, each push button is pressed in a state where the lock arm is locked or unlocked depending on the operating state of the intermediate operating member and cannot be detected from the outside. Can be pushed or reset.

For this reason, if the push button is pushed or reset after unlocking the lock arm,
It is possible to prevent the unlock number from being easily searched. Further, the intermediate operating member can be constituted by a rod-shaped body having push portions projecting from both left and right side surfaces of the casing at both ends. In this case, each push portion can be housed in a concave portion formed on both right and left side surfaces of the casing. Preferred (claim 4).

According to this configuration, since each push portion protrudes from the left and right side surfaces of the casing, compared with a case where the intermediate operating member protrudes to the front surface side of the casing,
The operation of the member can be performed easily and reliably, and since each of the push portions is stored in the concave portion, it is possible to prevent the intermediate operation member from being erroneously operated by unexpectedly hitting the baggage or the like to the push portion.

On the other hand, a push-button lock used in the above-mentioned rocking type locking device is disclosed, for example, in the above-mentioned publication (Japanese Utility Model Publication No.
No. 5,889, Japanese Utility Model Publication No. 60-15890) in which the push buttons are arranged in two vertical rows and the slider moves linearly in the width direction. However, in order to make the casing as compact as possible, a member that is rotatable around an axis parallel to the push button and has a circumferential portion around the rotation center is adopted as the slider. Are preferably arranged along the circumference of the slider (claim 5).

In this case, since the slider on which each push button is disposed along the circumference rotates around the center of the circumference, it is necessary to secure a clearance for moving the slider in the casing. Is lost, so
The width of the push button lock can be reduced, and the casing of the locking device can be made as compact as possible.

Also, in this case, since each push button is also arranged circumferentially, even if the interval between adjacent push buttons is narrowed, a finger must be put on one push button from the outside of the circumference of the circumferential arrangement. By doing so, there is less possibility that the adjacent push buttons will be pressed together. Furthermore, it is preferable that the slider is formed in a ring shape, and that each push button is disposed so as to pass through the inside of the ring of the ring-shaped slider.

If the push buttons are passed through the inside of the ring of the slider as described above, the push buttons can be arranged more densely, and the casing can be made more compact. If the slider has a ring shape, a shaft stopper for the push button can be provided at the center of rotation of the slider, as will be described later. In this respect, the casing can be made more compact and the internal structure can be reduced. There is an advantage that can be simplified.

That is, if the slider is ring-shaped,
On the side surface on the rotation center side of the slider in each push button,
Providing an engaging portion for positioning the push button at the push operation position and the non-press operation position, and providing a shaft stopper at the rotation center portion of the slider that can engage with the engagement portion of each push button. (Claim 7). With such a configuration, all the push buttons can be positioned by one small shaft stopper to lock all the button shafts, and the number of parts as the shaft stopper is reduced and the size is reduced. There is an advantage that can be achieved.

Further, according to the present invention, a reset cap is provided on the back side of the locking mechanism to cover the ends of all the push buttons protruding from the back side, and the reset cap is pushed toward the front side of the casing by pushing the reset cap toward the front side of the casing. It is recommended to provide a reset button on the front side of the casing to return the push button to the non-push operation position. In this way, all the push buttons can be reset at the same time only by pressing the reset button once. Further, since the reset button is arranged on the front side of the casing like the push button, the reset operation can be easily performed.

[0025]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 14 show a first embodiment of the present invention. As shown in FIG. 14, this embodiment exemplifies a case in which a swing type locking device 1 employing the present invention is attached to a door 4 of a container 3 mounted on a rear portion of a truck 2. The container 3 has a pair of left and right doors 4 and 4 pivotally attached to the rear opening of the box body 5 in a double-opening manner.

Door levers 6 and 6 are provided on the free ends of the doors 4 and 4 so as to be rotatable in the vertical direction. Embedded dead shafts 7, 7 are buried.
When the door levers 6, 6 are rotated downward, the upper and lower ends of the left and right dead shafts 7, 7 protrude from the upper and lower edges of the door 6, and the fitting concave portions (shown in FIG. And the doors 4 and 4 are locked. On the other hand, when the respective door levers 6, 6 are turned upward, the upper and lower ends of the left and right dead shafts 7, 7 enter the door 6 side,
The doors 4 and 4 are unlocked.

On the other hand, the swing type locking device 1 is attached to each of the left and right doors 4, 4 corresponding to the left and right door levers 6, 6, respectively. In this case, when the left door 4 is closed, the left door 4 is not opened unless the right door 4 is opened unless the right door 4 is opened. Therefore, the right-side oscillating locking device 1 employs the oscillating-type locking device 1 according to the present invention having a push-button lock 14, which will be described later. The lock 14 is not provided.

Therefore, in the case of the container 3 in which the left and right doors 4, 4 can be opened and closed independently, the swing type locking device 1 having the push button lock 14 can be attached to both the left and right doors 4, 4. As shown in FIGS. 1 to 5, the swing type locking device 1 in this case includes a casing 8 fixed to the surface of a door 4, and is pivotally attached to the casing 8 so as to be swingable in the front and back directions and has an upper end portion. A lock arm 10 having a hook portion 9 for hooking the door lever 6 to the lock arm 1;
A lock member 11 that moves in a direction orthogonal to the swing direction of 0 and engages and disengages from the arm 10 to prevent or allow the swing of the arm 10. An intermediate operating member 12 for external operation and a push-button lock 14 that allows the unlocking operation by the intermediate operating member 12 only when only a predetermined push button 54 is pushed and operated.

In the following, for convenience, the side on which the lock arm 10 is disposed with respect to the casing 8 (FIG. 1)
Is described as “upper” and the opposite direction is described as “down”, and the structure of each part will be described. The casing 8 is made of an aluminum alloy integrally formed by die casting, and has a case main body 15 formed in a substantially trapezoidal shape in a cross-sectional view, and a case main body 15 projecting upward from a rear surface of an upper end portion of the case main body 15 in a substantially upward direction. And a rectangular mounting plate portion 16. At four corners of the casing 8, screw holes 17 for fixing the casing 8 to the surface of the door 6 are provided.

A receiving portion 18 of the door lever 6 is recessed on the upper surface of the case body 15, and the door lever 6 fitted to the receiving portion 18 is hooked from above by the hook portion 9 of the lock arm 10. Thus, the upward rotation of the door lever 6 can be locked. The left and right side surfaces 19 and the lower side surface 20 of the case body 15 are inclined surfaces inclined toward the center toward the front surface side.
The push section 4 of the intermediate operation member 12 described below is
6 is formed in the lower side surface 19.
A storage port 22 for a reset button 83 to be described later is formed.

The case main body 15 has a vertically elongated first window 23 extending from the upper side surface of the main body 15 to substantially the center.
The lock arm 10 is housed in the first window 23 so as to be swingable in the front and back directions of the casing 8. As shown in FIG. 5 and FIG.
A projection 24 projecting from the upper end of the hook 9 for hooking the door lever 6 and the rear side of the casing 8.
A pivot 25 for pivotally attaching the lock arm 10 to the casing 8 is inserted through the protruding portion 24 in the left-right direction. The hook 9 has an insertion hole 26 for a sealing rope (not shown).

A pair of left and right opposing walls 27 each having a substantially triangular plate shape and gradually narrowing downward from the protruding portion 24 protrude from the lower back surface of the lock arm 10. A horizontal push shaft 28 is provided between the wall portions 27. As shown in FIG. 6, a substantially H-shaped mounting frame 29 for fixing the lock arm 10 to the casing 8 is provided inside the case main body 15.
A pusher 30 is provided for switching the arm 10 to an unstable position between a locked position and an unlocked position.

That is, on the back side of the peripheral portion of the first window portion 23 in the case body 15, the support groove 31 of the pivot 25 is provided.
And a mounting portion 32 located below the support groove 31. After the pivot 25 of the lock arm 10 fitted in the first window portion 23 is fitted into the support groove 31, 32, the mounting frame 29 is screwed into the supporting groove 3
The lock arm 10 is pivotally attached to the casing 8 by closing 1 with the mounting frame 29.

On the other hand, when the lock arm 10 is mounted, the pushing body 30 having the compression spring 33 therein is interposed between the lock arm 10 and the mounting frame 29. At this time, the pushing shaft 28 of the lock arm 10 is
Is fitted into the upper end groove 34 of the pusher 30 and the mounting frame 2
Nine horizontal rails 35 are fitted into the lower end grooves 36 of the pusher 30 so that the compression spring 33 in the pusher 30 always pushes the push shaft 28 upward.

For this reason, as shown in FIGS. 11 and 12, the lock arm 10 has a lock position where the hook 9 contacts the mounting plate 16 of the casing 8 and the door lever 6 is locked. Unstable switching can be performed between an unlock position in which the casing 8 protrudes toward the front surface side and is disengaged from the door lever 6. As shown in FIGS. 5 and 7, the push button lock 14 is housed in a circular second window 38 formed at a lower portion of the case body 15, and the lock arm 10 and the push button lock inside the case body 15 are provided. 14, the lock member 11 and the intermediate operation member 12 are arranged.

The lock member 11 includes a lock plate 38 having a lower edge formed in an arc shape along the outer periphery of the push button lock 14, a pivot pin 39 protruding from the surface of the lock plate 38, and a lock member 38. And a drive pin 40 protruding from the rear surface side of the lock plate 38. Then, this lock member 1
1 is such that the pivot pin 39 is fitted into a pin hole 41 formed below the first window portion 23 on the back surface of the case body 15 so that the case body 15 can swing vertically on the back surface.

In a ball hole 42 provided slightly above the pin hole 41, a positioning ball 43 and a spring 44 for pressing the ball 43 toward the lock member 15 are housed. The lock plate 38 of the member 15 is formed with a pair of upper and lower positioning recesses 38A (see FIG. 9) for fitting the positioning ball 43 and positioning the lock member 11 at the lock position or the unlock position.

For this reason, the lock member 15 is connected to the pivot pin 39.
When it is pivoted upward and positioned, the lock plate 38
Of the lock arm 10 protrudes below the first window 23, and becomes a lock position for restricting the lower end of the lock arm 10 from swinging toward the rear surface of the casing 8 (see FIGS. 11 and 13A). On the other hand, when the lock member 15 swings downward around the pivot pin 39 and is positioned, the entire lock plate 38 is disengaged from the first window portion 23, and the lower end of the lock arm 10 is located on the back side of the casing 8. (FIGS. 12 and 13 (b) and (c)).

On the other hand, the intermediate operating member 12 is
The case body 15 is formed of a rod-shaped body formed in a rectangular column shape that is long in the width direction of the case body 15 and is inserted into a side window 45 formed at the bottom of the concave portion 21 provided on the left and right side surfaces 19 of the case body 15. It penetrates in the left-right direction. The intermediate operating member 12 is composed of a rod-shaped body having push portions 46 protruding from both left and right sides of the casing 8 at both ends, and each of the push portions 46 is housed in the concave portions 21 on the left and right sides of the case body 15. Have been.

The intermediate operating member 12 has a shallow groove 47 on the front surface side for avoiding interference with the lock member 11, and a first fitting groove into which the drive pin 40 of the lock member 11 is fitted at the center of the upper edge. 48 and a slider 5 to be described later
6 is provided with a second fitting groove 49 in which the unlocking pin 72 is fitted.
Is formed with a hooking recess 51 for hooking the leg portion.

That is, since the intermediate operating member 12 is disposed in the narrow space between the lock arm 10 and the push button lock 14 together with the lock member 11, the lock member 11 is housed in the shallow groove portion 47 and 12 are arranged at the same vertical position. At this time, the drive pin 40 of the lock member 11 is connected to the first fitting groove 4 of the intermediate operating member 12.
7 and 13, the first fitting groove 48 has substantially the same length as the movement stroke of the drive pin 40, and the locking member 11 locks. Position and unlocked position,
The drive pin 40 is formed at a position substantially in contact with one of the left and right edges of the first fitting groove 48 of the intermediate operation member 12 at the neutral position, that is, the drive pin 40 of the lock member 11 is When the member 11 is engaged with the lock arm 10, the lock side edge of the first engagement groove 48 of the intermediate operation member 12 in the neutral position (the first engagement groove 48 shown in FIG. When the member 11 is disengaged from the lock arm 10 and is in contact with the left side edge, the unlock side edge of the first engagement groove 48 of the intermediate operation member 12 at the neutral position (shown in FIG. 13A) (The right edge of the first engagement groove 48).

Support pins 52 project from both sides of the second window 37 on the back surface of the case body 15, and one leg of the return spring 50 wound around the support pins 52 is used as an intermediate operating member. Hooked on the 12 locking recesses 51,
And, by making the other leg abut against the inner surface of the case main body 15, the intermediate operating member 12 is always
5 is returned to the left and right center.

Thus, even if the intermediate operation member 12 is operated to the lock side or the unlock side, the intermediate operation member 12 is always urged so as to return to the neutral position which is located at an intermediate position between these sides. As shown in FIGS. 7 to 9, the push button lock 14 is a lock case 5 that is screwed to the second window 37.
And two types of unlocking and non-unlocking push buttons 54, 5 provided so as to be able to retract from the front side of the lock case 53.
5 and a slider 56 that is allowed to move (rotate) to the unlocking side only when a predetermined unlocking push button 54 is pushed.

In this embodiment, each push button 5
The lock case 53 is housed in the second window 37 of the case main body 15 so that the push buttons 54 and 55 are retracted toward the surface of the case main body 15 (casing 8). Are arranged on the surface side of the casing 8 so that the pushing operation direction coincides with the swing direction of the lock arm 10, and the slider 56 is arranged movably in a direction orthogonal to the swing direction of the lock arm 10. Will be.

Of the two types of push buttons 54 and 55, the unlock push button 54 is for permitting the rotation of the slider 56 only when the push button 54 is pushed, and is shown in FIG. As shown in FIG.
A first passage portion 59 is formed at the upper end of the shaft portion 57 by cutting out a connection portion with the pushing portion 58.

On the opposite side of the shaft portion 57 from the first passage portion 59, V-notch first and second engagement portions 60,
61 are formed spaced apart in the axial direction. On the other hand, the unlocking push button 55 is used to restrict the rotation of the slider 56 when the push button 55 is pushed and pushed, and as shown in FIG. It is similar to the unlocking push button 54 in that it has a moving
A stepped second passage portion 62 is formed at a position apart from the pushing portion 58 by a predetermined interval.

The point that the shaft portion 57 has the first and second engaging portions 60 and 61 having a V-notch shape is the same as the unlocking push button 54. Further, each push button 54, 55
The pressing portion 58 is provided so that the axis thereof is slightly deviated from the shaft portion 57, so that the rear end portion 57 </ b> A of the shaft portion 57 (push button) projects toward the front side of the lock case 53. The slider 6 is displaced from the center of rotation of the slider 6 with respect to the pushing portion 58.

As shown in FIG. 8, the lock case 53 includes a bottomed cylindrical front half 63 mounted flush with the surface of the casing 8, and a rear half covering the back opening of the front half 63. Body 64 and the first half 63 and the second half 6
Reference numeral 4 is fixed by a center screw 64A screwed into the center. Among them, a plurality of button holes 65 through which the pushing portions 58 of the push buttons 54 and 55 can be inserted are circumferentially arranged in the front half 63 as a whole. FIG.
As shown in FIG.
6 is provided slidably and rotatably.

As shown in FIG. 8, the rear half body 64 is provided with a recess 67 at a substantially central portion thereof for storing a shaft stopper 66. At the bottom of the recess 67, a push button 54 is provided. ,
A plurality of end holes 68 through which the back side end 57A of 55 is penetrated are formed in an arrangement corresponding to the button holes 65 of the front half 63. Each end hole 68 is provided with a button hole 6 of the first half 63.
5 and are arranged closer to the center than the center, and therefore, the rear end 67 of each of the push buttons 54 and 55
A is arranged so as to be closer to the center part side than the pushing part 58 on the front side of the lock case 53.

A horizontally elongated spring storage groove 69 is formed below the storage portion 67 of the rear half body 64, and a reset spring 70 for returning the slider 56 to a predetermined position is stored in the spring storage groove 69. ing. A horizontally long slot 71 is formed above the storage section 67 of the rear half body 26, and a release pin 72 of the slider 56 is inserted into the slot 71. In the present embodiment, the slider 56 is formed in a ring shape. As shown in FIG. 8, on the inner peripheral surface of the slider 56, there are provided operation blocking pieces 73 projecting radially inward at predetermined intervals in the circumferential direction. The number of the operation blocking pieces 73 is equal to the number of the push buttons 54 and 55, and the cutout recess 74 formed between the operation blocking pieces 73 has a size that allows the shaft portion 57 of each of the push buttons 54 and 55 to be inserted. Have been.

The slider 56 is provided with a spring receiving piece 75 projecting rearward above the peripheral end of the ring. On the opposite side of the spring receiving piece 75 in the radial direction, toward the rear (the right side in FIG. 8). The release pin 72 is provided to protrude.
As shown in FIG. 8, the slider 56 is
5 is turned downward, and the release pin 72 is installed in the lock case 53 so as to face upward. At this time, the spring receiving piece 75 is inserted into the spring storage portion 69 of the rear half body 64,
The spring 70 is urged toward one side in the circumferential direction (the counterclockwise direction in FIG. 13) by a reset spring 70 housed in the spring housing 69.

Accordingly, the slider 56 is provided with the reset spring 7
A predetermined standby state is maintained by the urging force of 0, and at this time, all the cutout recesses 74 between the operation blocking pieces 73 on the inner peripheral edge of the slider 56 are aligned with the shaft portions 57 of the push buttons 54 and 55. Therefore, all the push buttons 54 and 55 are in a state where the push operation is possible. Further, as described above, the release pin 72 of the slider 56
It protrudes into the casing 8 (the case main body 15) through the elongated hole 71 of the rear half body 64 and fits into the second fitting groove 49 of the intermediate operating member 12. Is
The stroke of the release pin 72 is slightly longer than the stroke of the release pin 72, and the release pin 72 is always fixed to the lock side edge of the second fitting groove 49 with respect to the intermediate operation member 12 at the neutral position (FIG. 13).
(The left side edge portion).

Thus, the slider 56 is always urged to the locking side where all the push buttons 54 and 55 can be pushed, and the slider 56 abuts against the intermediate operating member 12 at the neutral position on the locking side. It is connected to the intermediate operation member 12 with play so that the member 12 does not abut on the locking side. The shaft stopper 66 is used to position the push buttons 54 and 55 at a push operation position and a non-push operation position, and as shown in FIG. 8, a disk having a central screw 64A insertion hole therein. A plate spring having the same number of latching legs 77 as the push buttons 54 and 55 protruding from the disk 76 is provided at the base of the leg 77. It is formed by bending.

The shaft stopper 66 is fixed by pressing the disk portion 76 toward the rear half 64 with a sleeve 78 into which the center screw 64A is fitted. Further, each latching leg 77 selectively engages with the first or second engaging portion 60, 61 of the push button 54, 55 in the lock case 53, and pushes the push button 54, 55. Positioning is performed at each position of the pushed state and the non-pressed state.

In the state where the unlocking push button 54 among the push buttons 54 and 55 is not pushed, the shaft portion 57 interferes with the operation preventing piece 73 of the slider 56 and if the pushing operation is performed, The operation blocking piece 73 can pass through the first passing portion 59. On the other hand, when the unlocking push button 55 is not pushed, the second passage portion 62
If the push-pull operation is performed by permitting the passage of the movement blocking piece 73, the shaft 57 interferes with the movement blocking piece 73 after the operation.

Accordingly, the slider 56 cannot be moved (rotated) unless all the unlocking push buttons 54 are pushed and all the unlocking push buttons 55 are not operated. . In FIG. 9, only the unlocking push button 54 is pushed, so that the operation preventing piece 73 can pass through the first and second passage portions 59 and 62, and the slider 56 can be rotated. The state is shown.

As shown in FIG. 8 and FIG.
The push buttons 54 and 55 that have been pushed are displayed on the back side of
There is provided a reset cap 79 for returning to the original position. The reset cap 79 is formed in a disk cup shape from a resin material such as a hard plastic, and has a pair of guide legs 8 on diametrically opposed outer peripheral portions.
0 is provided. The guide legs 80 are provided in the lock case 53.
The reset cap 79 is inserted through a guide hole 81 provided in the rear half body 64 of the push button 5.
4, 55 are guided in the pushing direction.

Each push button 5 protruding from the end hole 68 of the lock case 53 is provided on the inner side of the reset cap 79.
4, 55 are formed in a space and a depth to cover all the back end portions 57A.
A coil spring 82 for urging the cap 79 in a direction away from the rear half body 64 is housed. In addition, the case body 5
A reset button 83 for returning each push button to the non-push operation position by pushing the reset cap 79 toward the surface of the casing 8 is provided in the storage opening 22 provided at the lower end portion of the third cap 3. Is provided.

As shown in FIGS. 7 and 9, the reset button 83 is formed by projecting a guide rod 84 from the back of a button body 84, and a return spring 85 is fitted in the middle of the guide rod 84. ing. The return spring 85 is loaded into the storage port 22 together with the guide rod 84, and has a function of pushing the reset button 83 that has been pushed and pushed back to the front surface side of the casing 8.

A lower end of a push arm 86 is pivotally attached to a free end of the guide rod 84 projecting into the case main body 53. The push arm 86 is pivotally attached to a support bracket 87 projecting from
Is in contact with the back of For this reason, the reset button 8
When the finger 3 is pressed by a finger, the reset cap 79 moves to the front side of the casing 6 via the pressing arm 86, and all the push buttons 54 and 55 that have been pushed are pushed back to the front side of the casing 8 at once. Will be.

Next, the operation of the swing type locking device 1 according to the above configuration will be described. In order to pivot the lock arm 10 to the unlock side so that the door lever 6 can rotate, first, the unlocked push button lock 14 is unlocked, and then the intermediate operating member 12 is unlocked (see FIG. 13 (to the right of 13) to release the lock member 15 from the lock arm 10.

Therefore, in order to unlock the push-button lock 14, all the unlock push buttons 54 are pushed and operated, and all the unlock push buttons 55 are not operated. And In this case, when only all the unlocking push buttons 54 are pushed and operated, the unlocking push buttons 54 are
The first passage portion 59 and the second passage portion 62 of the unlocking push button 55 are substantially flush with each other, and the operation preventing piece 73 of the slider 56 does not interfere with each of the push buttons 54, 55. Can be rotated in the unlocking direction (clockwise direction in FIG. 13).

As shown in FIG. 13 (a), when the intermediate operation member 12 is pushed to the unlock side (the right side in FIG. 13), the slider 56 moves the unlock pin 72 with the movement of the member 12. 13 in the unlocking direction, and the lock member 15 falls down via the drive pin 40, and
As shown in (b), the lock member 15 is
The unlock position is shifted from the lower end of the zero.

Thereafter, when the finger is released from the intermediate operation member 12, the member 12 returns to the neutral position by the return spring 50. Since the member 12 is connected to the lock member 15 with play, FIG. As shown in (c), even when the intermediate operation member 12 returns to the neutral position, the state in which the lock member 15 has been tilted to the unlock position is maintained.

Therefore, after releasing the finger from the intermediate operating member 12 for a while, the operator slowly moves the lock arm 1.
0 may be swung toward the surface of the casing 8. In this case, the intermediate operating member 12 is always urged to the neutral position, and the release pin 72 of the slider 56 urged to the locking side is moved to the second fitting groove 49 of the intermediate operating member 12 at the neutral position. 13 is in contact with the lock side edge (left edge in FIG. 13), it cannot be determined from the outside whether the slider 56 is in the locked or unlocked state.
At the neutral position of the intermediate operation member 12, all the push buttons 54 and 55 can be pushed or reset.

Therefore, after the neutral state of the intermediate operating member 12 shown in FIG. 13C, if the reset button 83 is further pressed or one of the push buttons 55 is pressed, the slider 56 is released. The rotation in the direction is restricted, and the intermediate operation member 12 cannot be operated to the unlock side. On the other hand, in this case, when the intermediate operation member 12 is operated toward the lock side, the lock member 15 rises to the lock position, and the swing of the lock arm 10 is prevented (FIG. 13).
(State of (a)).

When the push-button lock 14 is returned to the locked state, or when the unlock number is incorrectly pressed, the reset button 83 is pressed. Then, reset button 8
The push arm 86 connected to 3 pushes the reset cap 79 to the front side of the casing 8, and all the push buttons 54 and 55 in the protruding state are simultaneously pushed back.

FIGS. 15 to 17 show a second embodiment of the present invention. In this embodiment, unlike the first embodiment, the intermediate operation member 12 is composed of an operation pin directly connected to a release lever 89 projecting above the slider 56, and this operation pin is provided on the surface of the casing 8. It is inserted into the arc-shaped long hole 90. Also, the lock member 11
Consists of a plate directly connected to the release lever 89 and having an engaging piece 91 at the upper edge thereof which engages with and disengages from the lock arm 10.

The other components are the same as those in the first embodiment, and the same reference numerals are given to the drawings and the description thereof will be omitted. Here, the locking device 1 of the present embodiment
In this case, if the intermediate operation member 12 including the operation pin is rotated in the direction of the arrow in FIG. 15 after the push button 54 of the push button lock 14 is pushed, the slider 56 is rotated in the unlocking direction, and the lock is performed. The engagement piece 91 of the member 11 is disengaged from the lower end of the lock arm 10 to allow its swing.

However, in the locking device 1 in this case, both the intermediate operating member 12 and the locking member 11
6 directly connected to the lock arm 1 in the unlocked state.
When the use of 0 is continued, there is a possibility that the state where the intermediate operation member 12 is moved to the unlock side (the right side in FIG. 15) is left. When the intermediate operation member 12 is on the unlocking side, the slider 56 is kept moving in the unlocking direction. In this state, the operation preventing piece 73 has entered each of the passage portions 59 and 60, and Only the unlocking push button 55 cannot be pushed.

For this reason, if this state is left unchecked, it is immediately apparent that the push button 54 for unlocking is something other than the push button that cannot be pushed, so that another person can find the unlock number. There is fear. In this regard, in the first embodiment, the intermediate operation member 12 always returns to the neutral position, and the slider 56 urged toward the locking side contacts the intermediate operation member 12 only on the locking side. Since it is not possible to determine from the outside whether the lock 56 is in the locked or unlocked state, and since the push buttons 54 and 55 can always be pushed, the basic unlocking as described above is performed. The search for the number can be prevented beforehand.

The above embodiments are illustrative and not restrictive. That is, the scope of the present invention is defined by the appended claims, and all modifications that fall within the meaning of each claim are included in the present invention. That is, in this embodiment, the swing type locking device 1
Is provided in the container 3 of the truck 2,
INDUSTRIAL APPLICABILITY The present invention can be widely applied to various doors (including sliding doors) of railway containers and gates and other structures.

The number of the push buttons 54 and 55 is arbitrary, and is not limited to ten as shown in FIG.
Although not shown, a disk-shaped slider other than a ring-shaped slider can be used as the slider 56. in this case,
Since the button shafts 4 and 5 have to pass through the outer periphery of the disk-shaped slider 6 along the outer periphery thereof, the operation preventing piece 73 is engraved on the outer periphery of the slider 6.

Further, as the slider 56, a C-shaped ring formed by cutting a part of a cylindrical member, or a fan-shaped formed by cutting a part of an arc of a disk can be adopted. In these cases, the push buttons 54 and 55 may be arranged in a C shape corresponding to the circumference of the slider 56. In short, it is sufficient that the slider 56 has a circumferential portion around the center of rotation, and the slider 56 is not limited to a simple circular or ring-shaped one.

In addition, the shape, material, and the like of each component are not limited to the above embodiment.

[0076]

As described above, according to the present invention,
The push button lock is incorporated on the front side of the casing so that the moving direction of the slider and the moving direction of the lock member match, so the lock member can be used without a special interlocking mechanism.
The slider and the intermediate operating member can be easily and securely connected,
An oscillating locking device having a push-button lock can be obtained as simply as possible.

Further, since the push buttons are arranged on the front surface side of the casing, there is an advantage that the pushing operation of the push buttons is simplified as compared with the case where each push button is provided on the side surface of the casing.

[Brief description of the drawings]

FIG. 1 is a perspective view of an oscillating locking device according to a first embodiment of the present invention.

FIG. 2 is a front view of the locking device.

FIG. 3 is a left side view of the locking device.

FIG. 4 is a bottom view of the locking device.

FIG. 5 is a rear view of the locking device.

FIG. 6 is an exploded perspective view of a central portion of the locking device.

FIG. 7 is an exploded perspective view of a lower portion of the locking device.

FIG. 8 is an exploded perspective view of a push-button lock incorporated in the locking device.

FIG. 9 is an enlarged sectional view of a lower portion of the locking device.

10A is a side view of an unlocking push button, and FIG. 10B is a side view of an unlocking push button.

FIG. 11 is a side sectional view of the locking device when the lock arm is at a lock position.

FIG. 12 is a side sectional view of the locking device when the lock arm is at an unlock position.

FIG. 13 is a rear view showing the operation of the main members of the locking device.

FIG. 14 is a front view of a truck employing the locking device as viewed from the rear.

FIG. 15 is a front view of an oscillating locking device according to a second embodiment of the present invention.

FIG. 16 is a left side view of the locking device.

FIG. 17 is a rear view of the locking device.

FIG. 18 is a side sectional view of a conventional swing type locking device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Oscillating locking device 4 Door 8 Casing 9 Hook part 10 Lock arm 11 Lock member 12 Intermediate operating member 14 Push button lock 21 Depression 46 Push part 54 Unlocking push button 55 Unlocking push button 60 First Engaging part 61 Second engaging part 79 Reset cap 83 Reset button

[Procedure amendment]

[Submission date] October 4, 1996

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Claims (8)

[Claims] 1. A lock arm (10) having a hook (9) at one end thereof is pivotally mounted on a casing (8) fixed to the surface of a door (4) so as to swing in the front and back directions of the casing (8). A lock member (11) that is attached and moves in a direction orthogonal to the swing direction of the lock arm (10) to engage and disengage with the arm (10), thereby preventing or allowing the swing of the arm (10). Is provided in the casing (8), and the casing (8) includes a locking mechanism that allows the lock member (11) to move in a direction in which the lock member (11) is released from the lock arm (10) when a predetermined unlocking operation is performed. In the swing type locking device incorporated therein, the locking mechanism comprises a plurality of push buttons provided on the front surface side of the casing (8) such that the pushing operation direction matches the swing direction of the lock arm (10). (54) (55), A slider (56) that is movable in a direction orthogonal to the swing direction of the lock arm (10) and that is allowed to move to the unlocking side only when a predetermined unlocking push button (54) is pressed. ,
The lock member (11) has a slider (56) so that the lock member (11) is released from the lock arm (10) with the movement of the slider (56) to the unlocking side. 56, and an intermediate operating member (12) for moving the slider (56) to the unlocking side by an operation from the outside of the casing (8) is connected to the slider (56). Oscillating locking device. 2. An intermediate operating member (1) disposed between a locking mechanism and a lock arm (10).
2. The oscillating locking device according to claim 1, wherein the oscillating locking device is interlockingly connected to the slider (56) via (2). 3. The intermediate operating member (12) includes the same member (1).
2) Even when the lock side or the unlock side is operated, the slider (56) is always urged to return to the neutral position located in the middle of these sides, and all the push buttons (54) (5)
5) is always urged to the locking side on which the push operation can be performed, and the locking side abuts the intermediate operating member (12) at the neutral position and the same (12) on the non-locking side.
3. The oscillating locking device according to claim 2, wherein the locking device is connected to the intermediate operating member (12) with play so as not to abut. 4. The intermediate operating member (12) is formed of a rod-shaped body having push portions (46) projecting from both left and right side surfaces of the casing (8) at both ends. The swing type locking device according to any one of claims 1 to 3, wherein the rocking type locking device is housed in concave portions (21) formed on both right and left side surfaces of (8). 5. The slider (56) is provided with a push button (5).
4) A member rotatable about an axis parallel to (55) and having a circumferential portion about the center of rotation thereof, and the push buttons (54) and (55) are provided on the circumference of the slider (56). The rocking type locking device according to any one of claims 1 to 4, which is arranged along a part. 6. The slider (56) is formed in a ring shape, and each of the push buttons (54) (55) is arranged so as to pass through the inside of the ring of the slider (56) formed in the ring shape. The oscillating locking device according to claim 5, wherein 7. The push buttons (54) and (55) are moved to a push operation position and a non-push operation position on the side surface on the rotation center side of the slider (56). An engaging portion (60) (61) for positioning is provided. The engaging portion (60) (61) of each of the push buttons (54) (55) can be engaged with the center of rotation of the slider (56). 7. An oscillating locking device according to claim 6, wherein a pivot stop (66) is provided. 8. A reset cap (79) for covering the ends of all the push buttons (54) (55) protruding from the rear surface of the locking mechanism is provided, and the reset cap (79) is attached to the casing ( A reset button (83) for returning each of the push buttons (54) and (55) to a non-push operation position by pressing the front side of the casing (8) is provided on the front side of the casing (8). 8. The swing type locking device according to any one of claims 1 to 7.