KR101318564B1 - Lock device - Google Patents

Abstract

When the door has a striker detachable from the locking base in the closed state and the door is pushed in the closing direction from the opening, the striker can be held in the closed state by engaging the striker with respect to the supporting part, and pressing the door in the same direction again to release the coupling. A lock device that is unlocked and rotatable in an open direction, comprising: a case supporting a striker, a biasing means for biasing the striker in a direction protruding from the case, and a normal non-operational position in which no load is applied to the striker. A switching member which is switched to an operating position which is rotated by the stress when the abutting part hits, and moves the striker against the bias force, spring means for returning the switching member to the non-operating position, and the switching member is in the non-operating position. The striker withstands the And a locking mechanism that is alternately variable in a locking form to be kept in a moved state and a non-locking form to release the hold.

Description

Lock device {LOCK DEVICE}

The present invention relates to a lock device and a door using the same, which are coupled to hold the door in a closed-door state by a pressing operation on the door, and which are released by the following pressing operation. In addition, the door of the target is rotated with one end of the main body side opening (the one end side including the configuration moved along the guide rail or the like as in the form example), and the closed door state of closing the main body opening is opened. It is a type that switches to the open-door state. Preferably, it is an intermediate folding door (a door made by folding two boards together with a hinge) and being movable while being used for closet or partition and folding and deploying.

For example, in the conventional intermediate folding doors, while the doors are held in the closed state by the locking device, the hinges connecting the doors have a biasing means, and by the biasing force. In some cases, the binding and retention actions in the closed state may be compensated. In addition, in the conventional structure, the handle is required when the door is pulled in the opening direction together with the unlocking of the lock device, so that the appearance is deteriorated by the handle on the design side of the door. Patent document 1 discloses the countermeasure example. The structural feature is that the handle used in operation improves the appearance by making the handle recess provided in the door hardly visible in relation to the hinge (hinge). In addition, in the known technique, a door is pushed into the door surface by one push as a kind of handle, and is pushed into this state again, and the door handle in the closed state is configured as a raised handle. There is also a configuration in which a catch member for storing in the rail is provided as a means for pressing the shake.

Patent Document 1: Japanese Patent Publication No. 2008-240377

In the structure of patent document 1, an external appearance can be improved as the recessed part for knobs is made small, but operability worsens when the recessed part is made small. In addition, the retractable handle does not make the door surface completely flat, which makes the operation cumbersome. In the structure using a catch member, the mounting precision of a catch member becomes cumbersome, and also operable by that. Further, in the conventional locking device, a push-push locking mechanism (for example, Japanese Patent Laid-Open No. 2006-214105) which engages and holds the door to the main body side by the first pressing operation and releases the coupling by the next pressing operation. Configuration as specified in However, in this structure, since the lock device and the rod-shaped attachment / detachment member (called a striker, etc.) attached to and attached to the lock device are indispensable, binding strength is easily restricted, and the door is closet. It becomes difficult to apply when it becomes large and heavy or intermediate folded, such as the like.

Accordingly, the inventors of the present invention devised a high-strength locking device for attaching and detaching, i.e., protrudingly engaging or releasing the engaging portion provided on the opening side of the main body in a closed state from the above problem recognition. In this locking device, in particular, the door is held in the closed state by being pressed from the open state, and released by being pressed again from the closed state, and then rotated by the negative force in the opening direction. An object of the present invention is to further improve it, to reduce the number of members, and to reduce costs and downsize.

In order to achieve the above object, the present invention is used for a door that is rotated in one end with respect to the main body side opening to a closed state and an open opening state for closing the opening, and is urged in the always open direction. When the door has a striker detachably attached to the latching support portion (for example, the groove of the guide rail) installed in the main body, and the door is pressed in the closing direction from the opening, the release force is released. A lock device, which is coupled to a striker to maintain a closed door state, is released from the coupling by pressing the door in the same direction again so that the striker can be rotated from the closed to the open direction, the lock device being installed on the door to move the striker. The case which supports and the room which protrudes the striker from the case The urging means rotated by the urging means and the stress when the abutting portion provided on the main body side hits from the normal non-operational position that is pivoted on the case and does not apply a load to the striker. A switching member which is switched so as to move the striker against the biasing force of the biasing means, a spring means for returning the switching member from the operating position to the non-operational position, and the switching member is switched from the non-operational position to the operating position. Each time, it is characterized in that it is provided with a locking mechanism that is alternately variable in a latching form for holding the striker in a state of moving against resistive forces and a non-locking form for releasing the holding.

In the present invention described above, the locking mechanism is referred to as a push-push, a push-out latch, a push lock push-open, or the like. When the striker is in a non-locking form, the striker is moved by the switching member. When it is pressed for the first time, it becomes in the form of a jam (when the striker is moved), and when it is pressed next, it is in the form of no jam (the release of the striker). do. The support portion may be configured to be formed in a substantially concave shape in a corresponding portion on the main body side, or may be configured to use a groove of a guide rail provided in the main body side opening to rotate or move the door as in the form. In addition, the front end of the striker (upper engaging portion) is a shape of the door opening and closing direction, preferably a substantially vertical surface for the front side (the side in the door opening direction) and the rear side (non-closed) for locking. In the direction) is formed on the inclined surface for release.

 More preferably, the present invention is embodied as follows. In other words,

(1) the locking mechanism is mounted to the case to accommodate the counterpart of the striker therein; a sliding body with a locking portion slidably mounted to the case; and protruding the sliding body from the case. And a spring member urging in the direction, a cam groove provided in the sliding body, and a pin for tracing the cam groove. In this case, since the existing latch (for example, what is called a dispensing latch) which has a housing, a sliding body, a spring member, a cam groove, and a pin is used as a latching mechanism, it is excellent in assembly property and versatility.

(2) The locking mechanism has a cam groove provided on the striker side and a pin provided on the case side to trace the cam groove. In this case, since the locking mechanism is made up of the cam groove on the striker side and the pin on the case side, the simplification and the cost can be further reduced.

(3) The support portion has an approximately inverted concave shape in cross section, and the striker is pressed in the closing direction from the opening to the door after the switching member is rotated from the inoperative position to the operating position. When the force is released, the locking mechanism is switched from the locking form to the non-locking form, and the tip (top) is press-contacted to the inner edge of the inverse recess shape from the lower end surface of the inverted recess shape of the support portion. Iii) while being moved by the subordinate forces together with the door to be combined with the indented concave shape. In this case, when the striker is opposed to the supporting part, the striker is moved by the subordinate force and protrudes into the inverted concave shape of the supporting part to cause elasticity or impact sound proportional to the auxiliary force, but the front end of the striker (top) is supported. It is coupled to the inner edge portion of the inverted concave shape from the bottom surface of the inverted concave shape, so that the elastic sound or the impact sound can be easily and easily reduced by the frictional force by the press contact without adding a braking member.

(4) It is a structure which has the base which supports the said case so that a movement to an up-down direction, and the height adjusting means which changes the height of the said case with respect to the said base is possible. In this case, for example, the height can be finely adjusted by the height adjusting means with respect to the base even after the locking device is attached to the door, so that the mounting accuracy on the door can be relaxed.

(5) having a fixing bracket fixed to the door so as to pivot the case so as to be capable of turning the case, and a biasing member for biasing the case to a regular position of the fixing bracket, wherein the striker is engaged with the supporting portion. In, when the case receives a vibration of a predetermined size is configured to be released is the coupling. In this case, for example, in the case of an emergency such as when a child is trapped inside the main body side opening that is opened and closed by a door, the vibration of a predetermined magnitude may be caused by knocking the door from the back of the door. Only by applying it, the locking device is forced to fall against the biasing force against the clamping bracket, and can be disengaged so that it can be forcibly opened in an abnormal situation (such as when a person is trapped in a space on the rear side of the door). To improve the reliability and safety.

(6) The lock device according to the present invention is used for a door. As a more suitable door structure, it is an intermediate folding door which can move while folding and deploying along a guide rail. In this case, if the door is an intermediate folding door which can be moved while folding the movement of the other end of the door along the groove of the guide rail or the groove for the guide, the guide rail or the groove for the guide can be used as the locking base. .

In the present invention, the striker and the biasing means attached to the striker, the switching member and the spring means attached thereto, while adopting a high-strength lock structure having a striker detachable from the main body side engaging portion, that is, engaging or releasing in the closed state. By the simple structure including the locking mechanism, the door can be switched from the open state to the closed state by the pressing operation on the door, or the door is released by being released by the next pressing operation, thereby improving the operability. In addition, it does not require a conventional handle can also improve the appearance.

BRIEF DESCRIPTION OF THE DRAWINGS The intermediate folding door provided with the lock apparatus which concerns on embodiment to which this invention is applied is shown, (a) is a schematic perspective view seen from the design side of a door, (b) is a schematic perspective view seen from the back side.
2 is a schematic perspective view showing a part of the hinge broken.
3 (a) and 3 (b) are external views showing the locking device of the form as seen from the front and rear faces.
Fig. 4 (a) is a state diagram when the striker protrudes from the case of the lock device, and (b) is a state diagram when the height of the main part is further changed by the height adjusting means.
5 is a schematic exploded perspective view showing the overall configuration of the lock device.
6 (a) and 6 (b) are schematic operation diagrams showing the main part and the latch of the lock device in which the door is pressed in the closing direction from the opening.
7 (a) and 7 (b) are schematic operation diagrams showing the main part and the latch of the lock apparatus assuming a state in which the pressing force is released after the door is further pressed in the closing direction.
8 (a) and 8 (b) are schematic operation diagrams showing main parts of the lock apparatus, assuming that the door is further maintained from the state of FIG. 7 to the lock apparatus.
9 (a) and 9 (b) are schematic diagrams showing an operation method of releasing (unloading structure) in an emergency in which a child or the like is trapped in a closed door state.
10 (a) to 10 (c) are schematic diagrams illustrating a restoring operation after forcibly pulling out.
FIG. 11 is a view showing the locking device of the modification in correspondence with FIG. 5. FIG.
12 (a) to 12 (e) are schematic diagrams illustrating the locking mechanism when the lock device in FIG. 11 is used.

EMBODIMENT OF THE INVENTION Hereinafter, the form and modification which apply this invention are demonstrated with reference to drawings. In this description, the structure of the main body side opening and the door, the configuration of the hinge, the configuration of the locking device, the assembly method, the height adjustment operation, the main operation of the locking device, the group removal structure, and the modification will be described in detail.

The lock device RE of the form of the main body side opening and the door is closed in a closed state in which the main body side opening is closed by being rotated with respect to the main body side opening as one point as illustrated in Fig. 1 (a) (b). It is used for the door 9B or the door 9A which switch to the opening state which opens and closes. As an example, Fig. 1 (a) (b) has the opening part of the main body 8 partitioned into the left-right longitudinal material 8a and the up-and-down horizontal material 8b. This opening is used to open or close a shared space such as a living room or a corridor, and a closed space such as a work-in closet or a place where an object is stored through the intermediate folding doors 9A and 9B. This is where. On the inner surface of the upper side cross member 8b, the guide rail 8c of cross section substantially reverse concave shape is attached, and the groove of the guide rail 8c extends along a longitudinal direction. Guide grooves 8d are formed along the longitudinal direction on the inner surface of the lower cross member 8b. The groove of the guide rail 8c is used as the supporting portion of the present invention. For this reason, the code | symbol 8c may be described as the support part 8c. Moreover, on the inner surface of the upper cross member 8b, the contact part 8e is provided in the perpendicular | vertical direction to the side used as a closed space, such as the closet which is a workpiece | work and the place where objects are put rather than the guide rail 8c. This contact part 8e is provided corresponding to the lock apparatus RE, and the switching member 3 which comprises the lock apparatus contacts, and prevents the door 9B from moving to the said closed space side. In this example, the contact part 8e is comprised by the substantially T-type stop prevention stopper formed from metal etc.

The doors 9A and 9B are formed in a flat surface as shown in FIG. 1 (a) on the front side (design surface) side, that is, the side disposed in the shared space, thereby eliminating any handles or hand recesses. It is molded in the shape of a chair. On the other hand, the rear ends of the doors 9A and 9B, that is, the opposing ends of the doors on the side of the closed space described above, are hinged by a plurality of hinges (three in this example) as shown in Fig. 1 (b). The door 9A has one end side approaching the longitudinal member 8a, and the door 9A is pivotally rotatable through a pivot shaft or the like (not shown), but the guide rail 8c and the groove ( It may be possible to move at the same time and to be rotatable through a pivot shaft or the like not shown along 8d). On the other hand, the door 9B is movable at the same time so that one end side can be moved through the pivot shaft which is not shown along the guide rail 8c and the groove 8d (this pivot shaft may be a pin structure or a roller structure), and can be rotated simultaneously. Is turning. Moreover, in the vicinity of the hinge 7 of the upper side, in the door 9B, the recess 9a is provided in the upper edge side of the back of a door, and the lock apparatus RE is in the recess 9a. I am attached.

(Configuration of Hinge) In FIG. 1 (b) and FIG. 2, the hinge 7 is fixed to the door corresponding part by a plurality of screws B over the door 9A and the door 9B, and each door The urging spring 69 is urged so as to be bent toward the normally open state, that is, to the outside. In detail, the hinge 7 can rotate the hinge pieces 67 and 67 and the hinge pieces 67 and 67 which are mounted to the corresponding door as illustrated in FIG. 2 through the upper and lower connecting parts 67a. The pivot shaft 68, which is supported on the pivot shaft 68, the coiled bias spring 69 disposed on the outer circumference of the pivot shaft 68, and the bias spring 69 on the pivot shaft 68 so as to be rotatable. It consists of the spring support pieces 7a and 7b for the cover combined with the hinge piece 67 which rotates and overlaps the corresponding hinge piece 67 in the state which hung and fixed the corresponding end 69a or 69b of the bias spring 69. In addition, the bending force shown by the arrow is always applied to each hinge piece 67 via the biasing spring 69 and the spring support pieces 7a and 7b. For this reason, in this hinge 7, the doors 9A and 9B are roughly shaped as shown in FIG. 1 (a) in the unlocking | locking state of the lock apparatus RE, ie, in a non-locked state. It is bent in the direction of (V-shape when a strong force is strong) and is switched to an open state. Such a hinge may use a commercial item.

(Configuration of Lock Device) This lock device RE is provided with a case 1 which is provided directly to the recess 9a of the door 9B or through a base 5 or the like, and the space 15a of the case 1. A striker (2) which is supported to move up and down on the upper and lower sides thereof; The switching member 3 and the switching member 3 rotated from the operating position to the operating position by the stress when the abutting portion 8e formed in the main body side opening portion are hit from the normal non-operation position not provided with Whenever the spring means S2 for returning to the operating position and the switching member 3 are switched from the non-operating position to the operating position, the striker 2 is moved in a state of resisting the biasing force of the biasing means S1. Alternately variable in the holding form to hold and the non-locking form to release the holding And a latch (4) as the rim mechanism. The lock device RE has a latching shape in which the latch 4 holds the striker 2 against the biasing force, and the door 9B resists the biasing force of the biasing spring 69 in the closing direction from the opening. When pushed to release the pressing force, the latch 4 is switched from the locked form to the non-locked form through the switching means 3 and the striker 2, so that the supporting portion 8c (in this example, the guide rail 8c) is turned off. To the striker 2 to maintain the closed state, and when the door 9B is pushed in the same direction again, the latch 4 latches through the switching means 3 and the striker 2. The switch is released to release the engagement, so that the door 9B is switched from the closed to the open direction by the bias force.

In addition, the above lock device RE is provided with respect to the base 5 and the base 5 which support the case 1 so as to be movable or through the adjuster case 60 as in this example. The height adjusting means 6 including the adjust case 60 which changes the height of the case 1 is provided. In addition, as a pull-out structure, a sheet metal which is fixed to the fixing bracket 55A for turning the case 1 so as to be able to turn over and the fixing bracket 55A and elastically holds the case 1 in a regular position so as to be releasable. 55B and the biasing member S3 which attaches the case 1 to the regular position direction of 55 A of fixing brackets. Hereinafter, the detail of each member is made clear.

First, the case 1 is formed in a container shape which is opened substantially upwardly, which is divided into front and rear walls 10 and 11, both side walls 12, and the like, and a space 15a for arranging the striker 2 and the latch 4. And small spaces 15b formed on both sides of the space 15a through the inner wall to allow the two leg portions 31 of the switching member 3 to pass therethrough. The space 15a has a bottom wall (not shown), and a shaft portion 14c (FIG. 9 (a) (b) supporting the lower side of the coil spring, which is the biasing means S1, is provided on the bottom wall. And mounting portions (not shown) for mounting the latches 4 are provided. Reference numeral 13 is a one piece provided downward in the left and right middle of the bottom wall. The fitting hole 13a penetrates to this piece 13 side by side as shown to FIG. 3 (a). Moreover, the front wall 10 is provided with the notch 16 which opened the upper side largely, and the latching part 17 which is formed in the lower middle, and hangs the corresponding end of the biasing member 3. As shown in FIG. The rear wall 11 penetrates the left and right guide grooves 14a and the middle guide grooves 14b formed in the space 15a and guide the striker 2, and a part of the guide grooves 14b. Thus, a restricting groove 14c (see Fig. 6 (a)) is formed to fit with the protrusion 23a of the striker 2 and to prevent the striker 2 from falling out of the case space 15a. On the lower side of both side walls 12, the shaft hole 18 penetrates on the same axis as the said fitting hole 13a. On the upper outer surface of both side walls 12, locking portions 19 are provided, respectively. Each locking portion 19 has an inclined surface that increases from the rear side toward the front and a shear surface that becomes substantially vertical.

The striker 2 includes a small block-shaped main body 20, an upper coupling portion 21 protruding upward from the upper surface of the main body 20, guide ribs 22 provided on both sides of the main body 20, and a main body. Guide ribs 23 provided on the rear of the 20, lower coupling portion 24 protruding downward from the lower surface of the main body 20 and the tubular portion 25 provided in front of the lower coupling portion 24 Have Among these, the upper surface of the main body 20 is an inclined surface which becomes lower toward the front side than the rear side. The upper engaging portion 21 has a release inclined surface 21a for the front side and a vertical surface 21b for the rear side for attaching and detaching from the supporting portion 8c of the main body opening part. The guide ribs 22 on both sides and the guide ribs 23 on the rear side are fitted to the guide groove 14a and the guide groove 14b in the space 15a. The guide rib 23 has the protrusion 23a which protrudes to the back surface side. The lower engaging portion 24 has a protrusion 24a at the bottom as shown in Fig. 6 (b), and is attached to and detached from the latch 4 mounted in the space 15a. The cylinder part 25 positions the upper part of the coil spring which is the biasing means S1 which biases the striker 2 in the direction which protrudes more than the case 1.

The switching member 3 is substantially c-shaped, and consists of the intermediate part 30 arrange | positioned horizontally, and the leg part 31 of the left and right provided downward on both sides of the intermediate part 30. As shown in FIG. The intermediate part 30 is provided on both sides of the rear side to be pressed against the upper surface of the striker-side main body 20, and the upper part of the front side constitutes the upper side and the contact portion 8e of the main body-side opening. The contact portion 33 is inclined slightly so as to be easy. Each leg part 31 has the shaft hole 34 which penetrates on the same axis as the lower end side, and is inserted through the corresponding small space 15b of the case 1. The above switching member 3 is pivotally rotated by a predetermined angle with the shaft 35 inserted into the shaft hole 34 and the shaft hole 18 with respect to the case 1.

The latch 4 corresponds to the locking mechanism of the present invention, and includes a case 40 capable of receiving the lower engaging portion 24 of the striker therein and a locking portion 42 slidably mounted to the case 40. Of the sliding body 41, the spring member (not shown) which biases the sliding body 41 in the direction which protrudes from the case 40, the substantially heart-shaped cam groove 43 and the cam groove which were formed in the sliding body 41 It has a pin 44 which traces 43, and is attached to the mounting part provided in the bottom wall of space 15a. Then, the latch 4 described above is pushed in the direction of the arrow of FIG. 6 (b) through the switching member 3 from the non-locking form of FIG. 7 (b), and the lower engaging portion 24 slides. It hits the counterpart of the sieve 41, and slides the sliding body 41 into the case 40 against resistance to a bias force. In this state, the locking portion 42 retracts the inside of the case 40 and restrains the protrusion 42a of the lower coupling portion, thereby becoming a locking type that is caught in the retracted position as shown in the drawing. Moreover, from this state, when the striker 2 pushes in the arrow direction of FIG. 6 (b) through the switching member 3, the said latch is released and the sliding body 41 is pushed by the biasing force, and the latching part 42 ) Is moved in a direction protruding from the case 40 so as to be switched to a non-locked form to release the restraint of the locking portion 42 to the protrusion 42a.

The height adjusting means 6 is variable in the adjust case 60 supporting the case 1 with the shaft 35 as a point and the adjust case 60 up and down with respect to the base 5. It has the operation member 65 to make. Here, the operation member 65 is made of a bolt configuration consisting of the operation head and the male screw. The adjust case 60 is integrated with the holding part 61 which partitions the space which arrange | positions the lower side of the case 1, and the lower part of the holding part 61, and can operate the head part of the operation member 65. FIG. It consists of a functional part 62 which partitions the space to arrange | position. The holding part 65 is open in the front. Here, the axial hole 61a which penetrates the lower side of the both side wall 61 on the same axis line, the guide rib 61b provided in the outer surface of the both side wall 61, and the lower inner side of one side wall 61 is carried out. A spring engaging groove 61c is formed along the corner. In the functional part 62, while the pond part 63 is cut out from the left and right middle to the rear side of the front wall, the insertion passage part 64 which penetrated downward to the part of the bottom which partitions the pond part 63 is carried out. To form. In FIG.3 (a) (b), the code | symbol 64a is the spring engaging groove cut out from the lower side of the holding part 65 to the functional part 62. FIG. 6 (a) to 9 (b), the height adjusting means 6 is simplified due to constraints in drawing.

The base 5 supports the case 1 so as to be movable in the vertical direction through the adjust case 60, or the case 1 is used as the reference plane to the adjust case 60 and the operation member 65. It is a member for enabling the position adjustment in the vertical direction by a predetermined dimension through the height adjusting means (6) made. In other words, the base 5 has an approximately U shape divided into an intermediate portion 50 and both side walls 51. The intermediate part 50 is provided with the female screw part 54 in the upper surface center part. The female screw part 54 is any one of the structure which forms the female screw screwed with the male screw of the operation member 65 in the middle part 50, and the structure using the nut mounted in the thickness of the middle part 50. As shown in FIG. Both side walls 51 are formed with a guide groove 51a provided on the inner surface, a locking projection 52 protruding on the lower outer surface, and a retracted hole 53 having a long hole shape penetrating substantially in the upper and lower middle portions.

In addition, the above-described base 5 has a fixing bracket 55A and a fixing bracket 55A in order to adopt a pull-out structure to the locking device RE of the form as shown in Figs. 3 (a) (b) and 5. It has the sheet metal 55B connected to it. Here, the fixing bracket 55A and the sheet metal 55B are press products, but may be a resin molded product. The fixing bracket 55A includes both lower mounting portions 56 mounted on the base 5 and mounting portions 57 fixed to the door by integrating the respective mounting portions 56. The attachment part 56 is provided with the engaging hole 56a to which the engaging protrusion 52 is coupled, and the evacuation hole 56b corresponding to the evacuation hole 53. The mounting portion 57 is formed so as to be disposed along both side portions 12 from the rear side of the case 1, and the device hole 57a and the upper end of the device fixing portion when the spring is fixed by the spring corresponding to the door counterpart, It has the latching | locking part 57b which latches. On the other hand, the sheet metal 55B is set in the shape arrange | positioned inside 55 A of fixing brackets, and the mounting part 58 formed so that it may be arrange | positioned along both side parts 12 rather than the back side of the case 1 similarly to the mounting part 57 ), A mounting hole 58a formed in each mounting portion 58 and overlapping the device hole 57a, and an elastically deformable coupling piece 59 having one end shortly formed inside both mounting portions 58. have.

(Assembly) The striker 2 or more is assembled with the biasing means S1 after attaching the latch 4 to be described later with respect to the space 15a of the case, and the corresponding guide ribs 22 are formed in both guide grooves 14a. ) Can be moved in a state where the guide ribs 23 are fitted to the guide grooves 14b, and the projections 23a touch the upper ends of the restricting grooves 14c to prevent them from falling out (Fig. 8 (a)). (b)). Next, when the switching member 3 inserts both leg portions 31 into the corresponding small spaces 15b, the intermediate portion 30 is disposed in the space 15a. In this state, the middle part of the upper surface of the main body 20 exits between the press parts 32, and each press part 32 opposes the corresponding side part of the main body 20 surface. Hereinafter, this state is called semi-assembly.

On the other hand, in the base 5, the adjust case 60 is assembled so that it can move up and down in the state which fitted the guide rib 61b to the guide groove 51a. At that time, the operation member 65 is in the state where the head part is arrange | positioned to the sump part 63, and the human case or the tool of the person in the state where the adjust case 60 is moved and arrange | positioned below the base 5 is carried out. The head portion is rotated so that the male screw portion is screwed into the female screw portion 54. In addition, the fixing bracket 55A is attached to the base 5 by engaging the engaging projection 52 and the engaging hole 56a. At that time, the sheet metal 55B is disposed inside the fixing bracket 55A so as to coincide with the device hole 57a and the mounting hole 58a. From the above state, the semi-assembly is pivoted through the shaft 35 with respect to the adjust case 60.

That is, the shaft 35 is, for example, in the state of FIG. 5, the left retraction hole 56b on the fixing bracket side, the left shaft hole 61a on the adjust case side, the coil spring that is the spring means S2, and one piece 13. ) Fitting hole 13a (refer FIG.3 (a) (b)), the coil spring which is biasing member S3, one shaft hole 18 on the case side, and one shaft hole 34 on the switching member side. Penetrated through one shaft hole 34 on the switching member side, one shaft hole 18 on the case side, one shaft hole 61a on the adjust case side, and one evacuation hole 56b on the fixing bracket side. Is placed. Thereafter, the shaft 35 is prevented from being pulled out by being caught by the circumferential grooves 36 formed at both ends of the snap ring 37, respectively.

Next, one end of the coil spring, which is the spring means S2, is caught by the engaging groove 61c (see FIG. 5) on the adjust case side, as shown in FIGS. 3A and 3B. While exerting the force, it is caught by the lower portion of one leg portion 31 of the switching member, whereby the switching member 3 is disposed along the inner surface of the front wall of the case and maintained in a substantially vertical state. This state is the non-operational position of the switching member 3. In addition, one end of the coil spring, which is the biasing member S3, is caught by the catching groove 64a (see FIG. 3 (a) (b)) on the adjust case side, and the other end catches on the case side while expressing the biasing force. It is caught in the part 17. Thereby, the case 1 is arrange | positioned so that it may enter inside the adjust case 60, it may be maintained in a substantially vertical state, and also the engagement of the engaging piece part 59 of the sheet metal 55B, and the engaging part 19 of the case side part will be carried out. It is coupled to the fixing bracket 55A by the elastic retaining. The lock device RE in Fig. 3A and 3B is assembled in this manner, and the case 1 is in a normal state.

(Height adjustment operation) The above lock device RE is attached to the recessed part 9a formed in the door 9B as shown to FIG. 1 (a) (b). The recessed portion 9a is formed in advance corresponding to the supporting portion 8c provided in the main body side opening. By the way, there is usually a large and small dimensional error between members. For this reason, when the lock apparatus RE is arrange | positioned in the recessed part 9a, and a screw etc. are inserted into the mounting holes 58a and 57a and fixedly operated, the striker 2 is shown in FIG. 4 (a). Similarly, the mounting height in the recessed portion 9a must be accurately determined so as to be engaged with the supporting portion 8c as designed in the state protruding from the case 1 by the urging force of the urging means S1. This operation is surprisingly cumbersome. Therefore, in this lock apparatus RE, it is designed so that height may be adjusted even after it is fixed to the recessed part 9a once, and it is designed so that mounting operability may be favorable.

That is, FIG. 4 (b) shows an upper side (case 1, striker 2, switching member 3, latch 4, and bias) including the adjust case 60 constituting the lock device RE. The state in which the means S1, the spring means S2, and the biasing member S3 are positioned upwards of the arrow by a few millimeters (mm) with respect to the base 5 is shown. This operation rotates the head part of the operation member 65 exposed to the pool portion 63 in the right direction indicated by an arrow with a finger or the like. When the height is reduced, the operation member 65 is rotated in the reverse direction. In this example, the operation member 65 is screwed through the screwing with the female thread 54 of the base by rotation, and the upper side (case 1, striker 2, and switch) including the adjust case 60 are switched. Guide member (3), latch (4), biasing means (S1), spring means (S2), biasing member (S3) with respect to base 5 (and fixing bracket 55A) in the range of about 10 mm. With the guide operation of 51a and guide rib 61b, it can move up and down smoothly.

(Main operation of the lock device) Next, the operation when switching from the open state (opening of the door) to the closed state or switching from the closed state to the open state when the above lock device RE is used. (a) to FIG. 8 (b) for clarity. In these figures, the arrow in the right direction indicates the bias force that biases the door in the open direction, and the arrows (1) and (2) in the left direction indicate the pressing force that presses the door against the bias force, and the arrow (1) ) Shows the pressing force in the closing direction from the opening of the door, and the arrow 2 further shows the pressing force in the closing direction from the closing state.

(1) First, in the open state, the opposing end portions of the doors 9A and 9B face forward by the force of the biasing spring 69 on the hinge side, as estimated from FIG. 1 (a) (b). It is rotated into an o-shape (or more v-shape if the force is stronger). In this state, by pressing the door 9B in the arrow direction by hand, the doors 9A and 9B can be folded to open the width of the main body 8 side opening. In this open state, the lock device RE is in the normal standing state, i.e., in the non-operational position, as shown to the right of Fig. 6 (a), in which the switching member 3 is not loaded with the striker 2. , The striker 2 is moved under the resistive force of the biasing means S1 and is held in the moved state by the latch 4. As shown in FIG. 6 (b), the latch 4 has a pair of locking portions 42 that latch the protrusions 24a of the lower coupling portion 24 to be locked in the case 40. In other words, it is in the form of a hook.

(2) When the doors 9A and 9B are opened from the open state to the closed state, the biasing spring 69 of the hinge 7 is connected to the door 9B or the door 9A with the hands or fingers as shown in Fig. 6A. ) In the closing direction indicated by arrow (1) against the negative force. In this pressing process, when the contact part 33 contacts the contact part 8e of the main body side opening part as shown in the left side of FIG. 6 (a), the switching member 3 has the spring means S2 by the reaction force. Rotate clockwise to resist the negative forces of. Then, the striker 2 is pressed downward by the pressing portion 32 of the switching member, and is moved downward in response to the pressing force of the biasing means S1 by the pressing force. Then, when the striker 2 is pushed in the direction of the arrow in Fig. 6 (b) from the latching form, the latch 4 is released, and the sliding body 41 cooperates with the release of the pressing force to the door. Is pushed by a non-shown force and slides the locking portion 42 in the direction protruding from the case 40, finally restraining the locking portion 42 against the protrusion 42a as shown in FIG. Freed to switch to the non-hungry form.

7 (a) to 8 (b) show the details until the scriber 2 is released from the latch 4 and engaged with the supporting portion 8c of the main body side opening and held in the closed state. ). In the above locking device RE, when the pressing force against the door is released, the door 9B is moved in the opening direction by the biasing force of the biasing spring 69. At that time, the switching member 3 is rotated from the operating position to the standing direction by the biasing force of the spring means S2, and is switched to the normal non-operation position as shown in Fig. 8 (a) (b). In the process of switching the switching member 3 to the non-operational position, the striker 2 is moved in the direction projecting from the case 1 as shown in FIG. 7A by the biasing force of the biasing means S1. The upper end of the upper engaging portion 21 abuts on the lower surface of the inverted concave shape forming the supporting portion 8c. The door 9B is moved slowly in the opening direction by reducing the speed by the frictional force received by the contact. Subsequently, the striker 2 is urged upward by the urging force of the urging means S1. At that time, when the striker 2 reaches an inverted concave shape that forms the supporting portion 8c as shown in FIG. While contacting the inner edge of the inverted concave shape from the lower surface, as shown in FIG. 8 (b), the door 9B is slightly moved in the opening direction by the negative force to be combined with the inverted concave puddle. 9B) is kept closed (locked). This actuation is when the striker 2 faces the support 8c, and there is a rattling sound of a magnitude proportional to the negative force when projecting into the inverted concave shape of the support (such as the actuation sound or the impact sound at the time of joining). However, by combining the front end of the striker by pressing the inverted concave-shaped inner edge portion of the inverted concave shape of the base portion, such a rattling sound can be easily reduced in a simple configuration without adding a braking member.

(3) When the door 9 is opened again, in the closed door state of FIG. 8 (b), the door 9B or the door 9A is attached to the hinge side bias spring 69 with a hand or a finger. Resistant to the force, press in the closing direction of arrow 2 until it overstrokes as shown in Fig. 6 (a). In other words, the arrow 2 in Fig. 8 (b) shows the state when the door is pressed in the closing direction, and the arrow 2 in Fig. 6 (a) shows the state when the pressing force is released. Here, in the lock device RE, when the door 9B is pushed in the closing direction of the arrow 2 of FIG. 8 (b), the striker 2 moves downward against the biasing force of the biasing means S1. . In this process, the switching member 3 is held in the non-operational position standing up by the biasing force of the spring means S2 until it touches the abutting part 8e, so that the abutting part 33 is the abutting part 8e. After the contact with, it rotates clockwise against the biasing force of the spring means S2 by the reaction force.

Then, the striker 2 is pressed downward by the pressing portion 32 of the switching member 3, and is moved downward in response to the pressing force of the biasing means S1 as shown in FIG. Finally, the protrusion 24a of the lower coupling portion 24 is restrained by the pair of locking portions 42 constituting the latch 4 and is caught while being introduced into the case 40. That is, the latch 4 is switched from the non-locked form to the locked form. When the pressing force is released, the door is moved in the opening direction by the biasing force of the biasing spring 69 as shown in the right side of FIG. 6 (a). In this process, the switching member 3 also has the spring means S2. It is switched to the non-operational position standing up by the secondary force of. Subsequently, the engagement hold and release of the doors 9B and 9A are repeated for each pressing operation in the closing direction of the doors 9B and 9A.

(Group Removal Structure) The above locking device RE can be easily disengaged as a countermeasure in the case where an infant, a child, or the like is trapped in the rear closed space (such as a storage room) of the doors 9B and 9A. Next, the group removal structure will be described in detail with reference to FIGS. 9 (a) (b) and 10 (a)-(c).

In the state of FIG. 9A, for example, when the child is locked in a closed space closed by a door, the locking device RE has neither a handle nor a recess for the handles of the doors 9B and 9A. For this reason, the child cannot pull the doors 9B and 9A to the closed space side by magnetic force even if they want to release the lock device RE, and the child is in a crisis state. However, in this structure, the locking device RE is automatically disengaged only by the child pressing or knocking on the door 9B or the door 9A from the closed space side, and the doors 9B and 9A are automatically released. Switch to the open state.

That is, when the vibration device or the weight is applied to the doors 9B and 9A, the lock device RE is resistant to the biasing force of the biasing member S3 by the shaft 35 as a point. Overcoming the coupling force between the engaging piece portion 59 and the engaging portion 19 on the case side and is conducted as shown in Fig. 9 (b) in accordance with the release of the coupling, the striker 2 in the conductive state of the biasing means (S1) It descends with a compression displacement, and the upper engagement part 21 is disengaged from the support part 8c, and is disengaged. Then, the door is automatically rotated in the opening direction through the bias spring 69 from the closed state.

Further, as shown in Figs. 10A to 10C, the lock device RE is restored to its original normal state just by pushing the door back in the closing direction. That is, the lock device RE is the striker 2 when the door is pushed in the closing direction against the bias force of the bias spring 69 in the state where the door is rotated in the opening direction than that of FIG. 9 (b) or the above. It is moved downward by resisting the negative force with the buffer of the main body side opening part and the support part 8c. The switching member 3 abuts against the abutting portion 8e of the main body side opening, as shown in Fig. 10 (a), and rotates clockwise against the bias force of the spring means S2 by the reaction force, and the striker 2 ) Is pushed down by the switching member (3). As the door is further pushed in the same direction, the case 1 is moved closer to the fixing bracket 55A by the stress received from the switching member 3 as shown in FIG. 10 (b), and finally as shown in FIG. 10 (c). Thus, the case side engaging portion 19 is elastically coupled to the fixing portion bracket side engaging piece portion 59. Upon releasing the pressing force on the door, the latch 4 is switched to a locking form that restrains the lower engagement portion of the striker. The door is moved in the opening direction by the biasing force of the biasing spring 69, and in this process, the switching member 3 is also switched to the inoperative position by the biasing force of the spring means S2.

(Modification) FIG. 11 and FIG. 12 (a)-(e) have shown the modification which changed a part of the said form. In this description, the same reference numerals are given to the same parts as the first embodiment, and only the change points will be described in detail by using different codes only for other parts or changed members.

The first change is different in that the fixing bracket 55A and the sheet metal 55B are integrated. In other words, the fixing bracket 55 has both lower mounting portions 56 mounted on the base 5, mounting holes 57a for fixing with the door springs, and locking fastening portions 57b for the corresponding portions of the doors. An elastically deformable engaging piece portion 59 having one end formed short inside the mounting portion 57 and both mounting portions 57 is integrally formed.

The second change point is a locking mechanism 4A replacing the latch 4, that is, a cam groove 45 provided on the striker 2A side and a pin provided on the case 1 side to trace the cam groove 45. It differs from the point which comprised the 46 and the leaf | plate spring 47 which attaches the pin 46 so that swinging is possible. That is, in the modification, the case 1 differs in that the trace pin 51 and the leaf spring 47 for biasing the pin are laid down as compared with the above-mentioned form. The striker 2A is similarly constructed in that the striker 2 is provided with the main body 20, the upper coupling portion 21, the guide ribs 22, the tubular portion 25, and the like. It is different in that it has the cam groove 28 of a swing type or a heart cam type, provided in the back surface of 20).

Among them, the pin 46 is formed by bending a metal wire in a substantially c shape. The lower end 46a is pivoted in a corresponding part on the case side, and the upper end 46b is not shown in the case corresponding part. Protruding into the casing from the small opening, which is held in place by the leaf spring 47. The leaf spring 47 presses the pin counterpart upwards in a state in which the lower side is pressed against the coupling recess formed in the case-side counterpart, so that the pin 46 resists the opposing force and moves the lower end 46a to the point. To swing. As shown in Fig. 12A, the cam groove 28 is formed around the convex and heart-shaped island 29, the main passage groove 28a extending from the lower side to the upper right side, A locking guide groove 28b and a release guide groove 28d for locating which are located on the upper side and separated left and right, and a concave shape locking groove 28c positioned slightly below between the guide grooves 28b and 28d, and the guide groove. And a return groove 28e extending downward from 28d.

In the above locking mechanism 4A, for example, Fig. 12A shows the open state, that is, the right side of Fig. 6A and the state of Fig. 6B. The catching mechanism 4A is moved in the direction of the arrow with the striker 2A resisting the counter-force in the previous step, whereby the pin 46 (the other end 46b of) is engaged with the catching groove 28c. By this combination, the striker 2A is restrained from being moved upward against the biasing force of the biasing means S1.

FIG. 12 (b) corresponds to a state where, for example, the door shifts from the open state to the left side of FIG. 12 (a) as shown on the right side of FIG. 6 (a). The catching mechanism 4A is moved downward by the striker 2A being pushed by the switching member 3 as described above to resist the bias of the biasing means S1, and thereby the pin 46 (outer end 46b of the pin 46). It moves from this locking groove 28c to the release guide groove 28d.

12 (c) corresponds to, for example, a state in which the door releases the pressing force from the left state of FIG. 6 (a). In the locking mechanism 4A, the switching means 3 is switched from the operating position to the non-operational position, and at the same time, the striker 2A is moved upward by the biasing force of the biasing means S1 as described above, and the supporting portion 8c. ), And the pin 46 (outer end 46b) moves from the guide groove 28d to the lower end of the return groove 28e or to the lower end of the main passage groove 28a.

Fig. 12 (d) corresponds to a state in which the door is pressed in the direction of the arrow 2, for example, from the closed state of Fig. 8 (b). The locking mechanism 4A is rotated in the direction of the operating position against the bias force by the reaction force when the switching means 3 hits the contact portion 8e, so that the striker 2A is rotated against the rotation of the switching member 3. By pushing downward, the pin 46 (outer end 46b) moves from the main passage groove 28a to the engaging guide groove 28b.

Fig. 12 (e) corresponds to the state when the pressing force against the door is released on the left side of Fig. 1 (a), for example, and the door is moved in the opening direction again by the negative force. As for the locking mechanism 4A, the switching means 3 is rotated from the operation position to the non-operation position, the striker 2 is moved upward by the force of the urging means S1, and the pin 46 (outer end 46b). ) Moves from the guide groove 28b back to the locking groove 28c. In the above modification, cost reduction can be aimed at compared with the form.

Moreover, in the above aspect, although the intermediate folding door was mentioned as an example as the door, the locking device of this invention is a rotation type (a structure rotated by one end as a point, a structure rotated while moving one end of a pivot shaft or a turning part) which is urged in the opening direction. If it is a door, it is also applicable to a folding door connected to three or more pieces, one piece.

The entire contents of the specification, claims, drawings and abstracts of Japanese Patent Application No. 2009-251887, filed on November 2, 2009, are incorporated herein by reference, and are incorporated as a disclosure of the specification of the present invention.

Claims (10)

It is used for a door which is rotated to a point with respect to the main body side opening part, and is switched to the closed state which opens the said opening part, and the opening state which opens, and is urged in the always open direction, and is closed state. Has a striker attached to and detached from the latching support portion installed in the main body, and when the door is pressed in the closing direction from the opening to release the pressing force, the striker is coupled to the support portion and maintained in the closed state. The locking device is to release the engagement by pressing the door in the same direction again to be able to rotate from the closed to the open direction,
A case installed at the door to support the striker so as to be movable;
Biasing means for biasing the striker in a direction protruding from the case;
From the normal non-operational position which does not load the said striker and does not apply a load to the said striker, it is rotated by the stress when it hits the contact part installed in the said main body side, and is switched to an operation position, and the said striker is moved to the part of the biasing means. A switching member that moves in response to forces;
Spring means for returning the switching member from the operating position to the non-operating position;
Whenever the switching member is switched from the non-operation position to the operation position, a locking mechanism alternately variable in a locking form for holding the striker in a moved state against the bias force and a non-locking form for releasing the holding is provided. Locking device characterized in that. The method of claim 1,
The locking mechanism is mounted to the case to accommodate the counterpart of the striker therein, a sliding body with a locking portion slidably mounted to the case, and biasing the sliding body in a direction protruding from the case. And a latch having a spring member, a cam groove provided in the sliding body, and a pin for tracing the cam groove. The method of claim 1,
And the locking mechanism has a cam groove provided on the striker side and a pin provided on the case side to trace the cam groove. 4. The method according to any one of claims 1 to 3,
The supporting portion has an inverted concave shape in cross section, and the striker releases the pressing force in the closing direction from the opening to the door after the switching member is rotated from the inoperative position to the operating position. When the locking mechanism is switched from the locking form to the non-locking mode, the front end is pressed against the inner edge of the inverse recess shape from the lower end surface of the inverted recess shape of the supporting portion. Locking device, characterized in that moved together with the subordinate forces can be combined with the concave shaped recess. 4. The method according to any one of claims 1 to 3,
And a base for movably supporting the case in a vertical direction, and a height adjusting means for varying the height of the case with respect to the base. 5. The method of claim 4,
And a base for movably supporting the case in a vertical direction, and a height adjusting means for varying the height of the case with respect to the base. 4. The method according to any one of claims 1 to 3,
A fixing bracket fixed to the door so as to pivot the case so as to be capable of turning over the case, and biasing means for biasing the case to a regular position of the fixing bracket, wherein the striker is engaged with the support portion; And a case in which the case is subjected to vibration of a predetermined magnitude, thereby conducting the release of the coupling. 5. The method of claim 4,
A fixing bracket fixed to the door so as to pivot the case so as to be capable of turning over the case, and biasing means for biasing the case to a regular position of the fixing bracket, wherein the striker is engaged with the support portion; And a case in which the case is subjected to vibration of a predetermined magnitude, thereby conducting the release of the coupling. The method of claim 5,
A fixing bracket fixed to the door so as to pivot the case so as to be capable of turning over the case, and biasing means for biasing the case to a regular position of the fixing bracket, wherein the striker is engaged with the support portion; And a case in which the case is subjected to vibration of a predetermined magnitude, thereby conducting the release of the coupling. The method according to claim 6,
A fixing bracket fixed to the door so as to pivot the case so as to be capable of turning over the case, and biasing means for biasing the case to a regular position of the fixing bracket, wherein the striker is engaged with the support portion; And a case in which the case is subjected to vibration of a predetermined magnitude, thereby conducting the release of the coupling.

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