CN103184821B - Detent mechanism and localization method - Google Patents

Abstract

The present invention provides a positioning mechanism and a positioning method capable of easily and appropriately positioning a lance. The positioning mechanism includes a guide (8) detachably installed in the entry space (7a) of the plunger (3) of the main body (7) provided with the supporting part (4), and a mounting base ( 5) The adjustment structure possessed. The adjustment structure has the installation part (50b) of the plunger (3) of the installation base (5) in the entry direction (x) of the plunger (3) to the entry space (7a) and is approximately orthogonal to the entry direction. The movable support mechanism that moves in the direction, and the fixing mechanism that fixes the installation part (50b) in such a way that the above-mentioned movement will not be performed due to the operation from the outside, make the rotating body ( 1) When the reciprocating movement reaches the reciprocating movement end position, the above-mentioned mounting portion (50b) moves in contact with the inner surface of the guide (8).

Description

Positioning mechanism and positioning method

technical field

The present invention relates to a positioning mechanism of a plunger constituting a mechanism for assisting (assisting) the reciprocating movement of a rotating body reciprocating toward a reciprocating end position from a predetermined reciprocating position to a reciprocating end position.

Background technique

It is equipped with a striker provided in the door as a rotating body, and the door frame as its support body is provided, and the striker is caught at the predetermined forward position of the door and moved to assist the door to move toward the end position of the forward movement (closed position). The above-mentioned reciprocating auxiliary means of the auxiliary mechanism of the movable supporting member (refer to Patent Document 1) cannot be realized unless the lance and the supporting member are properly arranged respectively. If this arrangement is not appropriate, even if the door is moved forward, the lance will not be caught by the support member, and the desired operation of the assist mechanism will not be realized. Therefore, in the auxiliary mechanism of Patent Document 1, the lance is supported so as to be movable back and forth and left and right with respect to the lance base, and the fixing is released by pushing in the movable part that fixes the lance at a certain position from the outside. state and become the positioning (positioning) of the ram.

prior art literature

Patent Document 1: Japanese Patent Laid-Open No. 2010-209673

Contents of the invention

The main problem to be solved by the present invention is to more easily and appropriately perform the positioning of the plunger constituting such an auxiliary mechanism.

In order to solve the above-mentioned problems, in the present invention, from a first point of view, it is a positioning mechanism for the above-mentioned lance in an auxiliary mechanism provided with a lance and a supporting member, the lance is a rotating body and the rotating body is rotatably supported Any one of the supporting body is provided, and the supporting member is provided by the other side of the rotating body and the supporting body that rotatably supports the rotating body, and moves after catching the striker at the predetermined forward position of the rotating body, assisting The reciprocal movement of the rotating body towards the end position of the reciprocal movement,

Including a guide piece detachably installed in the entry space of the lance in the main body provided with the above-mentioned support member, and an adjustment structure provided by the mounting base of the lance,

The adjustment structure has a movable supporting mechanism that can make the installation part of the plunger in the above-mentioned installation base move in the entry direction of the plunger toward the above-mentioned entry space and in a direction substantially perpendicular to the entry direction, and the above-mentioned installation part will not Fixing mechanisms that are fixed in such a way that the above-mentioned movement is performed due to an operation from the outside,

When the rotating body is moved toward the end position of rotation from the state where the guide is attached, the attaching portion moves so as to be in contact with the inner surface of the guide.

In addition, in order to solve the above-mentioned problems, in the present invention, from a second point of view, it is a positioning method of the above-mentioned lance in an auxiliary mechanism provided with a lance and a supporting member, the lance is a rotating body and the rotating body is rotatable. Either one of the supporting body for supporting, the supporting member is provided for the rotating body and the other of the supporting body rotatably supporting the rotating body, and moves after catching the striker at a predetermined forward position of the rotating body , assisting the reciprocating movement of the rotating body towards the end position of the reciprocating movement,

From the state where the guide piece detachably installed in the entry space of the striker bar in the main body provided with the above-mentioned support member is mounted on the support member, the above-mentioned rotating body is moved forward to the forward-movement end position, and the inside of the above-mentioned guide is used. After moving the installation part of the lance on the mounting base of the lance which is movable in the direction of entry of the lance toward the entry space and in a direction substantially perpendicular to the entry direction, to a predetermined position, the surface is fixed. install part.

According to this positioning mechanism and method, by moving the rotating body backward to the forward movement end position from the state where the guide is attached to the main body, and then fixing the mounting part of the lance, the auxiliary mechanism can be easily and appropriately performed. The positioning of the ram constituting the auxiliary mechanism is captured by the supporting part. That is, as described above, by reciprocating the rotating body to the reciprocating end position, the mounting part can be automatically moved to the position where the lance is properly captured by the support member, and then, by being fixed as described above, it can be mounted on the mounting part. Positioning of the lance on the part. Since the guide is installed in the entry space of the lance provided with the main body of the support member, the positioning can be performed with a gap of the thickness of the guide secured between the inner surface of the entry space and the lance.

The effects of the present invention are as follows.

According to this invention, the positioning of the lance constituting the auxiliary mechanism captured by the support member constituting the auxiliary mechanism can be automatically performed by moving the rotating body to the forward movement end position, and the positioning can be easily and appropriately performed.

Description of drawings

1 is a bottom view viewed from below in a state in which a main body incorporating a supporting member constituting an auxiliary mechanism according to the embodiment is mounted, and the supporting member is at a swiveled-in position.

Fig. 2 is a side view showing the main body viewed from the lower side of Fig. 1 .

Fig. 3 is a bottom view viewed from the downward side in the state where the main body is attached, and the support member is located at the standby position.

4 is a bottom view of main parts showing a state in which the door as a rotating body moves from a state where a guide is fitted into a lance of the main body that positions a support member at a swiveled position and enters a space.

Fig. 5 is a perspective structural view of main parts showing the mounting state of the main body and the mounting base of the lance.

Fig. 6 is a perspective view of the guide.

Fig. 7 is a perspective view of the mounting base of the lance.

8 is a perspective view showing a state where the second slider side constituting the mounting base is separated from the base.

9 is a perspective view showing a state in which the second slider side constituting the mounting base is separated from the base, and both are shown when viewed from the side opposite to FIG. 8 .

Fig. 10 is a perspective view showing a state where the first slider and the second slider constituting the mounting base are separated.

Fig. 11 is a perspective view of the housing top of the second slider.

Fig. 12 is a perspective view of the underside of the housing of the second slider.

Fig. 13 is a perspective view of the main part of the first slider.

Fig. 14 is a side view of the main part of the first slider.

Fig. 15 is a sectional view taken along line A-A of Fig. 14 .

Fig. 16 is a perspective view of the locking body built in the installation base.

Fig. 17 is a perspective view of a divided portion constituting the first slider.

Fig. 18 is a longitudinal sectional view of the mounting base, in which the description of the base is omitted, and the locking body built in the mounting base is in an unlocked position.

Fig. 19 is a perspective view of the above-mentioned locking body and lifting body.

Fig. 20 is a perspective view showing a combined state of the locking body and the lifting body when the locking body is at an unlocked position.

Fig. 21 is a side view showing a combined state of the lock body and the lifting body when the lock body is located at the lock position.

Fig. 22 is a sectional view taken along line B-B in Fig. 21 .

Fig. 23 is a sectional view of the lance structure.

Fig. 24 is a cross-sectional view of the lance structure, and the lance and the intermediate sleeve are also in the most introduced state.

25 is a perspective view of main parts showing a state in which the lance structure is inserted through the mounting portion from a state in which the positioning of the mounting portion of the lance body is completed.

Fig. 26 is a perspective view of main parts showing a state in which the lance structure is inserted through the mounting part.

Fig. 27 is a perspective view of main parts showing a state where the lance structure is twisted from the state shown in Fig. 26 .

Fig. 28 is a perspective view of a lower sleeve constituting the lance structure.

Fig. 29 is a cross-sectional view showing only both of the positional relationship between the lower sleeve and the divided portion in the state shown in Fig. 27 .

In the figure: x—entry direction, 1—rotating body, 3—lever, 4—supporting component, 5—installation base, 50b—installation part, 7—main body, 7a—entering space, 8—guiding piece.

Detailed ways

Next, preferred embodiments of the present invention will be described with reference to FIGS. 1 to 29 . The positioning mechanism of this embodiment positions the lance 3 constituting the auxiliary mechanism so that it is properly caught by the support member 4 constituting the auxiliary mechanism at a predetermined reciprocating position relative to the reciprocating toward the end position of reciprocating movement. The rotating body 1 assists its reciprocating movement from a predetermined reciprocating position to a reciprocating end position. Typically, the positioning mechanism is active during the set-up phase of the above-mentioned auxiliary mechanism.

The above-mentioned rotating body 1 is supported by the supporting body 2 so as to be able to rotate forward and reversely. Typically, a door or a hinged door can be mentioned, as long as it can be supported by the supporting body 2 to rotate backward and forwardly. limited to these. In the illustrated example, an example in which the auxiliary mechanism is located in the door 1' and the door frame 2' is shown.

In the illustrated example, the door 1' as the rotating body 1 is at the closed position (the end position of forward movement) where the front surface 1a overlaps with the door abutting portion 2a of the door frame 2' serving as the support body 2 when moving forward. The inner opening of the door frame 2' is blocked. And, when the door 1' as the rotating body 1 is reciprocally operated from the open position that does not block the opening toward the above-mentioned closed position, during the reciprocal movement, the striker 3 constituting the auxiliary mechanism and the lance 3 constituting the auxiliary mechanism The bearing part 4 abuts until this closed position is acted upon by the auxiliary mechanism.

In the illustrated example, the lance 3 is mounted on the door 1' side as the rotating body 1. As shown in FIG. Therefore, in the illustrated example, the support member 4 is provided on the side of the door frame 2' as the support body 2. As shown in FIG. In addition, unlike the illustrated example, even if the striker 3 is installed on the door frame 2' side as the support body 2, and the supporting member 4 is provided on the door 1' side as the rotating body 1, the rotating body can be rotated from the middle. 1 for assistance.

In the illustrated example, the lance 3 is positioned in front of the front surface 1a when moving forward by the mounting base 5 . More specifically, in the illustrated example, the striker 3 is located on the upper end side of the door 1' on the door hinge side of the door 1'.

The installation base 5 has a first slider 50 , a second slider 51 and a base 52 . The second slider 51 has a shell shape by combining a case upper face 51a and a case lower face 51b. The first slider 50 is assembled to the second slider 50 so that the front end 50a protrudes forward from the front portion of the second slider 51 and other parts are accommodated in the second slider 51 so as to be able to move back and forth. on block 51. On the other hand, the second slider 51 is combined with the above-mentioned base 52 so that the rear part can move in the left-right direction. On the front end 50 a of the first slider 50 is formed a mounting portion 50 b of the lance 3 . The lance 3 is substantially composed of an upper end side of a shaft-shaped lance structure 6 , and protrudes upward from the first slider 50 by inserting the lance structure 6 into the mounting portion 50 b from below. The striker 3 is captured by the support member 4 positioned at the frame top of the door frame 2' before the door 1' is closed when the door 1' moves toward the closed position.

On the other hand, the support member 4 is configured to assist the forward movement of the rotary body 1 to the forward movement end position by catching the striker 3 at a predetermined forward movement position of the rotary body 1 and moving thereafter.

In the illustrated example, the supporting member 4 is built in a main body 7 mounted on the door frame 2', and is positioned on the door frame 2' through the main body 7. The main body 7 is mounted on the door frame 2' with its upper part. Moreover, the main body 7 has the entry space 7a of the striker 3 at the middle position of the left-right direction, and has the support member 4 in this entry space 7a. The entry space 7a is open at the front part 7b of the main body 7, that is, towards the side of the door 1' and the lower part of the main body 7. 7b further enters into the entry space 7a.

The support member 4 is rotatably combined with the main body 7 between a standby position (the position of FIG. 3 ) and a turned-in position (the position of FIG. 1 ). In the illustrated example, the rotation shaft of the support member 4 is arranged in the vertical direction, and the support member 4 can move in the left-right direction during the above-mentioned rotation. ( FIGS. 3 to 1 ) On the lower surface 4 c of the support member 4 , a groove-shaped trapping recess 4 a is formed. And, in the example shown in the figure, in the above-mentioned standby position, the entrance 4b of the catch recess 4a of the supporting member 4 faces the approaching side of the door 1' during the forward movement, that is, the front, and if the door 1' is rotated to the above-mentioned predetermined forward direction, In the active position, the plunger 3 enters the catch recess 4a of the supporting member 4 in the standby position ( FIG. 3 ). And, like this, if the lance 3 enters the catching recess 4a, the support member 4 forwardly rotates toward the entrance 4b of the catching recess 4a towards the sideward turning position, the lance 3 is captured by the catching recess 4, and, in this forward rotation, 1, the biasing force of the spring as the urging mechanism shown by the symbol 7c in FIG. By this normal rotation of the support member 4, the lance 3 gradually moves to the inner end side of the catch recessed part 4a. If the door 1 ' that is positioned at the end position of the reciprocation is moved back, the support member 4 that captures the lance 3 will be reversed to the standby position while accumulating momentum in the above-mentioned spring 7c, and if it reaches the standby position, the lance 3 will be captured from The recess 4a is pulled out and released, allowing the door 1' to move again.

If the door 1' as the rotating body 1 is moved to the above-mentioned predetermined forward position, the above-mentioned first slider 50 also enters the above-mentioned entry space 7a, but the upper surface 50c of the first slider 50 is located at the bottom of the support member 4. Below the lower surface 4c, only the lance 3 enters the above-mentioned catch recess 4a.

The positioning mechanism of this embodiment includes the guide 8 (clamp) of the above-mentioned installation part 50b detachably installed in the entry space 7a of the lance 3 of the main body 7 provided with the above-mentioned support member 4, and the installation base on the above-mentioned lance 3. The adjustment structure on the seat 5.

The guide 8 is fitted into the entry space 7a of the main body 7 from below. The guide 8 includes a guide surface 8a along an entry direction x of the lance 3 toward the entry space 7a, and an abutment surface 8b substantially perpendicular to the entry direction.

In the example shown in figure, the guide 8 has the fitting part 8c which fits auxiliary|assistantly into the said entry space 7a. The fitting part 8c is open front and bottom similarly to the entry space 7a, and has the flange 8d at a lower end. The guide 8 is attached to the main body 7 by inserting into the space 7a such that the flange 8d contacts the lower portion of the main body 7 and the upper portion of the fitting portion 8c contacts the lower surface 4c of the support member 4 . (FIG. 4, FIG. 5) Inside the fitting part 8c, the back wall and left and right side walls which comprise the said contact surface 8b are formed. One of the left and right side walls constitutes the above-mentioned guide surface 8a and intersects the inner wall substantially perpendicularly, and the other of the left and right side walls constitutes the elastic deformation portion 8e. In the illustrated example, the mounting portion 50b of the first slider 50 is in contact with the abutment surface 8b, and the second slider is sandwiched between the guide surface 8a and the elastic deformation portion 8e behind the mounting portion 50b. In the state of the slider 51, the mounting portion 50 is located at a predetermined position, that is, when the lance 3 is mounted on the mounting portion 50b, the catching recess 4a of the supporting member 4 properly captures the lance 3. (FIG. 4) More specifically, in the illustrated example, the guide 8 is mounted on the main body 7 in the above-mentioned manner in a state where the supporting member 4 is located at the above-mentioned turned-in position, and, from positioning the mounting portion 50b to Open the door 1' and remove the guide 8 from the main body 7 in the state shown in FIG. the innermost end.

That is, in this embodiment, after inserting the guide 8 into the entry space 7a, and installing the installation base 5 on the door 1 as the rotating body 1, the striker structure 6 is not installed on the above-mentioned installation part. In the state on 50b, by moving the door 1' to the closed position, using the abutment surface 8b to position the installation part front and rear, and using the guide surface 8a to position the installation part 50b left and right, the The installation part 50b, that is, finally automatically positions the above-mentioned lance 3 at the above-mentioned predetermined position.

On the other hand, the above-mentioned adjustment structure includes the installation part 50b of the lance 3 of the above-mentioned installation base 5 in the entry direction x of the lance 3 to the above-mentioned entry space 7a, which is the front-rear direction in the example shown, and the A direction substantially perpendicular to the entry direction, in the illustrated example, is a movable support mechanism that moves in the left and right directions, and a fixing mechanism that fixes the mounting portion 50b so that it does not move back and forth due to an operation from the outside.

The movable supporting mechanism includes the first sliding block 50 , the second sliding block 51 and the base 52 combined as above.

The first slider 50 has a mounting portion 50b on a front end 50a protruding forward from the second slider 51 . In the illustrated example, the mounting portion 50b has a cylindrical shape that is a cylindrical axis in the vertical direction and is open at both the upper end and the lower end of the cylinder. The above-mentioned lance structure 6 is inserted into the installation portion 50b from the lower end of the tube, and the inside of the installation portion 50b is the insertion portion of the lance structure 6 . Inside the mounting portion 50b, a detachment preventing portion 50d of the lance structure 6 inserted into the mounting portion 50b is formed. This detachment preventing portion 50d is formed in multiple stages in the axial direction of the lance structure 6, that is, in the cylindrical axial direction of the attachment portion 50b. In the illustrated example, the retaining portion 50d forms a part of a female thread portion formed along an imaginary spiral around the cylindrical axis of the mounting portion 50b inside the mounting portion 50b. In the illustrated example, among the inner surfaces of the mounting portion 50b, when the mounting portion 50b is divided into two front and rear by an unillustrated imaginary straight line passing through the cylinder shaft, it is the inner surface located at the rear. The mounting part 50b is formed in a position in the middle of the vertical direction in a multi-stage detachment preventing portion 50d. In the example shown in figure, the additional anti-off part 50e in the shape of a protrusion is formed between the lowest-stage anti-off part 50d and the cylinder lower end of the attachment part 50b.

The position of the first slider 50 accommodated in the second slider 51 has the wall surface along the entry direction x of the striker 3, and is formed by accommodating the locking body 9 described later that constitutes the above-mentioned fixing mechanism at intervals on the inner surface. The front locking part 92 of the first engaging part 90 is constituted by a pair of spaced left and right walls 50f, 50f. Front ends of the pair of left and right wall bodies 50f, 50f are integrally connected to the mounting portion 50b. In the example shown in the figure, by assembling the divided part 50h having the above-mentioned detachment prevention part 50d and the additional detachment prevention part 50e on the space 50g formed on the first slider 50 at the connection site, the attachment part 50b The anti-slip portion 50d and the additional anti-slip portion 50e are formed inside. A rack 50i continuous in the front-rear direction is formed on the inner surfaces of the upper edge sides of the pair of left and right wall bodies 50f, 50f, respectively. The rack 50i functions as a first engaged portion 50j of a first engaging portion with respect to a lock body 9 described later constituting the fixing mechanism.

The second slider 51 has a substantially rectangular disk-shaped back portion 51c long in the left-right direction, and has a protrusion portion 51d protruding forward from the back portion 51c. The protruding end of the protruding portion 51d is opened, and the front end 50a of the first slider 50 on which the above-mentioned mounting portion 50b is formed protrudes from the open portion 51e. The first slider 50 accommodates the pair of walls 50f, 50f in the second slider 51 in a state where it can slide back and forth within a certain range between the back portion 51c and the open portion 51e of the second slider 51. within 51. Inside the protruding portion 51d of the second slider 51, a front guide wall 51f and a rear guide shaft 51g are formed at approximately the middle position in the front-rear direction, between them, a later-described structure constituting the above-mentioned fixing mechanism is supported so as to be able to move up and down. The front locking part 92 of the locking body 9.

In addition, in the illustrated example, a compression coil spring 51h is interposed between the above-mentioned front side guide wall 51f and the attachment portion 50b of the first slider 50 . By the action of the spring 51h, the first slider 50 catches the protrusion 50k formed on the outer surface of the pair of wall bodies 50f, 50f to the step portion 51i formed inside the second slider 51 near the opening portion 51e. The maximum forward position of the spring 51h moves backward while being charged.

In addition, a window 51j is formed on the back portion 51c of the second slider 51 so that the rear lock portion 93 of the lock body 9 described later, which constitutes the above-mentioned fixing mechanism, in which the second engaging portion 91 is formed, faces outside.

The base 52 is substantially in the shape of a substantially rectangular plate long in the left-right direction. In the illustrated example, a eaves 52a protruding rearward are formed on the upper edge of the base 52 in the left-right direction, and the eaves 52a are clamped by the base 52 on the upper end of the door 1', When the door 1' moves forward, the front surface 1a is in close contact with each other, and is fixed to the door 1' by screws through the through holes 52b, 52b passing through the two left and right sides of the base 52 front and rear.

In the illustrated example, guide grooves 52 c are formed along the left-right direction on the upper edge portion of the base 52 and on the front side of the base 52 . Further, at the lower edge portion of the back portion 51c of the second slider 51, a guide groove 51k is formed along the left-right direction on the rear side of the back portion 51c, with the notch facing upward. In the illustrated example, as described above, the upper edge portion 51m of the back portion 51c of the second slider 51 enters the guide from one end of the guide groove 52c of the base 52 from the state where the base 52 is mounted on the door 1'. and the lower edge portion 52d of the base 52 enters the guide groove 51k from one end of the guide groove 51k of the second slider 51, and the second slider 51 is combined in a state capable of sliding left and right relative to the base 52. .

Further, on the front surface of the base 52, a rack 52e is formed continuously in the left-right direction at a portion facing the window 51j when the second slider 51 moves as described above. The rack 52e functions as a second engaged portion 52f with respect to a second engaging portion 91 of the lock body 9 described later constituting the above-mentioned fixing mechanism.

On the other hand, the above-mentioned fixing mechanism is constituted by a lock body 9 supported on the second slider 51 so as to be movable on the second slider 51 and to be able to move up and down within the second slider 51 in the illustrated example. .

The locking body 9 has a first engaging portion 90 corresponding to the first engaged portion 50j formed on the first slider 50 and a second engaging portion 90 corresponding to the second engaged portion 52f formed on the base 52 . engaging part 91 . In addition, the locking body 9 never makes the first engaging portion 90 engage with the above-mentioned first engaged portion 50j by operating from the outside, that is, from the outside of the second slider 51, and never makes the second engaging portion 90 engage. The engaging portion 91 is engaged in the unlocked position of the second engaged portion 52f, and moves to a locked position in which the engaging portions 90, 91 are engaged with these engaged portions 50j, 52f.

In the illustrated example, the lock body 9 has a front lock portion 92 , a rear lock portion 93 , and a driven-side cam portion 94 .

The front locking portion 92 has a front-rear dimension to be accommodated between the front guide wall 51f and the rear guide shaft 51g of the second slider 51 with a small gap, and is accommodated in a pair of left and right sides of the first slider 50 with a small gap. The wall body 50f, 50f has the shape of a rectangular parallelepiped in the left and right dimensions. In the illustrated example, the left and right sides of the front locking portion 92 are respectively formed with racks 95 that complementarily engage with the racks 50i of the first engaged portion 50j. The engaging portion 90 functions.

The rear locking portion 93 has a rectangular plate shape that is long in the left-right direction and has a plate surface arranged in the vertical direction. The rear lock portion 93 is integrally connected to the front lock portion 92 by a connection portion 97 with the through portion 96 of the rear guide shaft 51 g formed between the front surface and the rear end of the front lock portion 92 . In addition, the rear face of the rear locking portion 93 faces outward from the back portion 51c of the second slider 51 through the above-mentioned window 51j. In the illustrated example, a rack 98 that complementarily engages with the rack 52e of the second engaged portion 52f is formed behind the rear locking portion 93 as the second engaging portion. 91 works.

A driven side cam portion 94 is formed at a lower portion of the front locking portion 92 . The driven side cam portions 94 are formed on both sides of a virtual vertical axis y ( FIG. 19 ). Each driven-side cam portion 94 has an inclined cam surface 94a along a spiral around the vertical axis y, and a horizontal surface 94b continuous with the lowermost end of the inclined cam surface 94a. In the direction around the above-mentioned vertical axis y, one horizontal surface 94b of the two driven side flange portions 94 abuts on the uppermost end of the other inclined cam surface 94a.

Inside the second slider 51 and below the lock body 9 is provided a lifting body 10 for irreversibly moving the lock body 9 to the locked position. The lifting body 10 has a short cylindrical shape, and the diameter of the lower end of the cylinder is smaller than that of other parts. And, just below the supporting position of the lock body 9 , the small-diameter cylinder lower end 100 is rotatably accommodated in the shaft hole 51n formed in the lower case 51b, and is combined with the second slider 51 . On the upper portion of the lifting body 10 , a start-side cam portion 101 opposite to the start-side cam portion 94 of the driven-side cam portion 94 is formed. The start-side cam portion 101 has an inclined cam surface 101a along a spiral around the cylindrical axis y' and a horizontal surface 101b continuous with the uppermost end of the inclined cam surface 101a. One horizontal surface 101b of the two start-side cam portions 101, 101 adjoins the lowermost end of the other inclined cam surface 101a in a direction around the cylinder axis y'.

In addition, in the present embodiment, the lock body 9 is located at the lowest position in the above-mentioned unlocked position, and at the unlocked position, two cam portions formed between the pair of driven-side cam portions 94, 94 of the lock body 9 are located. The spaces respectively accommodate the corresponding starting side cam parts 101 in a state where the inclined cam surface 101 a of the starting side cam part 101 faces the inclined cam surface 94 a of the driven side cam part 94 . ( FIG. 18 , FIG. 20 ) In the illustrated example, a compression coil spring 51 o is interposed between the case upper surface 51 a and the lock body 9 . And, by the action of this spring 51o, the lock body 9 is positioned at the above-mentioned unlocked position.

When the locking body 9 is in the unlocked position, the first engaging portion 90 is located below the first engaged portion 50j, and the second engaging portion 91 is also located below the second engaged portion 52f. (FIG. 18) In this state, the above-mentioned guide 8 is inserted into the entry space 7a, and the installation base 5 is installed on the door 1' as the rotating body 1, and the striker structure 6 is not installed on the above-mentioned When the door 1' is moved to the closed position in the state where the mounting portion 50b is placed, the mounting portion 50b is guided by the guide 8 and positioned automatically as described above. (FIG. 4) When the lifting body 10 is rotated from the position where the positioning is completed, the above-mentioned locking body is locked due to the sliding contact between the inclined cam surface 101a of the starting side cam portion 101 and the inclined cam surface 94a of the driven side cam portion 94. 9 moves upward while accumulating momentum in the spring 51o. In the illustrated example, during this movement, the first engaging portion 90 is engaged with the first engaged portion 50j, and the second engaging portion 91 is engaged with the second engaged portion 52f, holding the mounted portion The above-mentioned positioning completion state of 50b. If the starter body 10 is rotated to the lowermost end of the inclined cam surface 94a of the driven side cam portion 94 on the uppermost end of the inclined cam surface 101a of the starting side cam portion 101, then the horizontal plane 101b of the starting side cam portion 101 is in contact with the starting side cam portion 101. The state where the horizontal surface 94b of the movable side cam portion 94 is engaged maintains the state where the lock body 9 is located at the locked position regardless of the urging force of the spring 51o. In the illustrated example, a hole 101c into which the tip of a screwdriver is fitted is formed at the center of the cylinder lower end of the lifting body 10 so that the screwdriver performs the above-mentioned turning operation. In the example shown in the figure, a detent portion 101d protruding laterally from the side portion of the lifting body 10 is formed near a portion where one of the horizontal surfaces 101b of the start-side cam portions 101, 101 of the lifting body 10 is formed at two places. ( FIG. 22 ) The forward rotation of the lifting body 10 to move the lock body 9 to the locked position stops at a position where the rotation stopper 101 d collides with an unillustrated restricting portion formed inside the case lower surface 51 b. In addition, in this embodiment, as described above, if the lifting body 10 is reversely activated from the state where the locking body 9 is positioned at the locked position, the horizontal surface 101b of the above-mentioned activation side cam portion 101 and the driven side cam portion 94 are released. In the state where the horizontal planes 94b are engaged, the respective corresponding starting side cam portions 101 are accommodated again in two spaces formed between the pair of driven side cam portions 94, 94 of the locking body 9 by the action of the above-mentioned spring 51o, The locking body 9 is reset to the unlocked position.

In addition, in this embodiment, after fixing the above-mentioned mounting part 50b at the position after the positioning in this way, the door 1' is re-moved and the guide 8 is removed from the main body 7, and then the door 1' is moved forward to forward. State of End Position The lance structure 6 is inserted through the insertion portion of the mounting portion 50b, and the lance structure 6 is twisted to perform vertical positioning of the lance 3 .

In the illustrated example, the lance structure 6 includes a shaft-shaped lance 3 , an intermediate sleeve 60 that supports the lance 3 so that it can move up and down, and a lower sleeve 61 that supports the intermediate sleeve 60 so that it can move up and down. , the inner sleeve 62 accommodated in the lower sleeve 60, the first compression coil spring 63 interposed between the lower sleeve 61 and the lance 3, the first compression coil spring 63 interposed between the inner sleeve 62 and the lower sleeve 61 The second compression coil spring 64 .

The plunger 3 has an outer jaw 3a at the lower end, and the outer jaw 3a is clamped on the inner jaw 60a formed on the upper end of the intermediate sleeve 60 by the force of the first compression coil spring 63 and the upper end side is lifted from the intermediate sleeve 60. Protrude upwards. The inner sleeve 62 of the intermediate sleeve 60 is combined by entering a part of the inner sleeve 62 into the through-hole 60b formed on the side of the intermediate sleeve 60, passes through the inner sleeve 62, and utilizes the second compression coil spring 64 In the no-load state, only the lower end enters the lower sleeve 61 and other parts protrude from the lower sleeve 61.

On the outer surface of the intermediate sleeve 60 is formed a detachment-prevented portion 60c that engages with the detachment-preventing portion 50d formed inside the insertion portion of the attachment portion 50b. This detachment-prevented portion 60c is formed in multiple stages in the axial direction of the lance structure 6 . In the example shown in the figure, this detachment-prevented portion 60 c forms a part of an external thread formed along an imaginary helix centering on the axial centerline of the lance structure 6 on the intermediate sleeve 60 . In the illustrated example, among the outer surfaces of the intermediate sleeve 60, when the intermediate sleeve 60 is divided into two by an imaginary straight line passing through the cylinder axis, the outer surface of one side is separated from the intermediate sleeve. The above-mentioned detachment-prevented portion 60c is formed in multiple stages between the lower end of 60 and the middle position in the vertical direction.

In addition, in the example shown in figure, the recessed part 61a which receives the said additional fall-off preventing part 50e formed in the inside of the attachment part 50b is formed in the outer surface of the lower sleeve 61. As shown in FIG.

Insertion of the lance structure 6 to the insertion portion of the mounting portion 50b can be performed only in the direction in which the uppermost detachment-prevented portion 60c does not come into contact with the lowermost detachment-prevention portion 50d. (FIG. 25) When the lance structure 6 is inserted through the mounting portion 50b from the state where the catch recess 4a of the supporting member 4 is located on the mounting portion 50b, the lance 3 is introduced into the intermediate sleeve while compressing the first compression coil spring 63. The intermediate sleeve 60 is pushed into the lower sleeve 60 by the lower surface 4c of the support member 4 to draw the intermediate sleeve 60 into the lower sleeve 61 while compressing the second compression coil spring 64 . (FIG. 26) The amount of introduction of the intermediate sleeve 60 increases or decreases according to the distance between the support member 4 and the mounting portion 50b. From this state, when the lance structure 6 is twisted by a predetermined angle around the center line of the shaft, the detachment-preventing portion 60c is screwed to the detachment-preventing portion 50d, and the state in which the intermediate sleeve 60 is introduced as described above is maintained. (FIG. 27) Thereby, positioning of the lance 3 in the up-down direction is performed. In the illustrated example, an outer jaw 61b is formed on the outer periphery of the lower end of the lower sleeve 61, and the lance structure 6 can be inserted into the insertion portion of the mounting portion 50b until the outer jaw 61b abuts against the lower end of the mounting portion 50b. s position. In addition, a hole 61c into which the tip of the screwdriver is fitted is formed at the center of the lower end of the lower sleeve 61 so that the above-mentioned twisting operation of the lance structure 6 is performed with the screwdriver. In addition, by the twisting, the intermediate sleeve 60 descends slightly below the inclination of the above-mentioned spiral simulated by the anti-slip portion 60c, and a gap is automatically formed between the upper end of the intermediate sleeve 60 and the lower surface 4c of the support member 4. In the illustrated example, the front end 50a of the spring 51h biasing the first slider 50 is in contact with the rear surface of the split portion 50h, and the split portion 50h can move slightly in the front-rear direction against the action of the spring 51h. Thus, when the above-mentioned twisting of the lance structure 6 is performed, the divided part 50h moves back slightly by bringing the additional anti-slip part 50e into contact with the outer surface of the lower sleeve 61, and returns at the twisting end position by the action of the above-mentioned spring 51h. The additional anti-slip portion 50 e is engaged with the recessed portion 61 a formed on the lower sleeve 61 by retreating to the previous position.

Claims (6)

1. A positioning mechanism, which is a positioning mechanism for the above-mentioned lance in an auxiliary mechanism provided with a lance and a supporting member, and the lance is provided by any one of a rotating body and a support body that rotatably supports the rotating body, the The supporting member is provided on the other side of the rotating body and the supporting body that rotatably supports the rotating body, catches the striker at a predetermined forward position of the rotating body and moves to assist the moving of the rotating body to the forward movement end position, The positioning mechanism is characterized in that, Including a guide piece detachably installed in the entry space of the lance in the main body provided with the above-mentioned support member, and an adjustment structure provided by the mounting base of the lance, The adjustment structure has a movable supporting mechanism that can make the installation part of the plunger in the above-mentioned installation base move in the entry direction of the plunger toward the above-mentioned entry space and in a direction substantially perpendicular to the entry direction, and the above-mentioned installation part will not Fixing mechanisms that are fixed in such a way that the above-mentioned movement is performed due to an operation from the outside, When the rotating body is reciprocated from the state where the above-mentioned guide is installed to the reciprocal end position, the above-mentioned mounting part is moved by the inner surface of the guide, The guide has a guide surface along the entry direction of the lance toward the entry space, an abutment surface substantially perpendicular to the entry direction, and an elastic deformation portion. The above-mentioned attachment part is sandwiched between the above-mentioned elastic deformation part. 2. The positioning mechanism according to claim 1, characterized in that, The installation base has a first slider that moves in the direction of the entry of the striker toward the space, a second slider that moves in a direction substantially perpendicular to the direction of entry, and is installed on any one of the rotating body and the supporting body. on the base, The movable support mechanism is configured in such a manner that the above-mentioned first slider is provided with a mounting portion, and the first slider is supported on the above-mentioned second slider so that the above-mentioned movement is possible, and the above-mentioned movable support mechanism is configured as follows: The second slider is supported on the base. 3. The positioning mechanism according to claim 2, characterized in that, The fixing mechanism is a locking body that is movably supported on the second slider, and has a first engaging portion opposite to a first engaged portion formed on the first slider, and a first engaging portion formed on the first slider. The second engaging part of the second engaged part on the base moves from the unlocked position where the engaging part is not engaged on these engaged parts to engaging the engaging part on these engaged parts through an operation from the outside. Locked position on the engaged part. 4. The positioning mechanism according to claim 1 or 3, characterized in that, The mounting portion has an insertion portion of a shaft-shaped lance structure, and is provided with a twisting operation of the lance structure in a state where the lance structure is inserted through the insertion portion, and is clamped on the lance formed on the lance structure. The anti-off portion on the anti-off portion on the rod structure, In addition, both or either one of the retaining portion and the portion to be secured are formed in multiple stages in the axial direction of the striker structure. 5. The positioning mechanism according to claim 2, characterized in that, The mounting portion has an insertion portion of a shaft-shaped lance structure, and is provided with a twisting operation of the lance structure in a state where the lance structure is inserted through the insertion portion, and is clamped on the lance formed on the lance structure. The anti-off portion on the anti-off portion on the rod structure, In addition, both or either one of the retaining portion and the portion to be secured are formed in multiple stages in the axial direction of the striker structure. 6. A positioning method, which is the positioning method of the above-mentioned lance in an auxiliary mechanism provided with a lance and a supporting member, the lance being provided by any one of a rotating body and a supporting body that rotatably supports the rotating body, the The supporting member is provided on the other side of the rotating body and the supporting body that rotatably supports the rotating body, catches the striker at a predetermined forward position of the rotating body and moves to assist the moving of the rotating body to the forward movement end position, The positioning method is characterized in that, From the state where the guide piece detachably installed in the entry space of the striker bar in the main body provided with the above-mentioned support member is mounted on the support member, the above-mentioned rotating body is moved forward to the forward-movement end position, and the inside of the above-mentioned guide is used. After moving the installation part of the lance on the mounting base of the lance which is movable in the direction of entry of the lance toward the entry space and in a direction substantially perpendicular to the entry direction, to a predetermined position, the surface is fixed. install part, The guide has a guide surface along the entry direction of the lance toward the entry space, an abutment surface substantially perpendicular to the entry direction, and an elastic deformation portion. The above-mentioned attachment part is sandwiched between the above-mentioned elastic deformation part.