CN1069731C

CN1069731C - Locking device keeping in unlocked position

Info

Publication number: CN1069731C
Application number: CN96110613A
Authority: CN
Inventors: 山田健一
Original assignee: Takigen Manufacturing Co Ltd
Current assignee: Takigen Manufacturing Co Ltd
Priority date: 1995-07-31
Filing date: 1996-07-10
Publication date: 2001-08-15
Anticipated expiration: 2016-07-10
Also published as: KR970006086U; TW304539U; CN1141998A; JP2700447B2; KR0130503Y1; JPH0941760A

Abstract

Provided is a latch device which is provided with a function to restrain a latch bolt at an unlocking position. SOLUTION: A latch bolt 6 housed in a case 2 is slidingly energized with a first panel 3 in the direction at which the tip of the latch bolt is engaged with a lock hole 5 of a catch 13 and a lock lever 8 housed in a cut groove 7 of the latch bolt 6 is pivoted on the latch bolt 6 by an axis 9. The lock lever 8 is turnably energized by a second spring 10 in such a direction that the tip face 8a of the lock lever 8 may be retracted into the cut groove 7, thereby setting an energizing force of a first spring 3 more powerfully compared with that of the second spring 10. When the latch bolt is moved backward at an unlocked position, the tip face 8a of the lock lever 8 projected from the cut groove 7 is placed into contact with a side surface 13a close to the lock hole 5 of the catcher 13.

Description

Remain in the locking device of lockset position of coupler

The present invention relates to a kind of with the locking devicen (latch assembly) of door lock on the fixed frame of motor storage case etc.

With door lock in the existing locking devicen of fixed frame, slidably lock bolt is contained in the box that is fixed in an aspect, installing lockhole aspect fixed frame, suppress lock bolt towards the direction that is embedded in this lockhole by the spring slip, by front face side revolution action bars handle or button from door, lock bolt (latch bolt) is fallen back slide into lockset position of coupler, and opening door operation is to carry out at the state that lock bolt is remained in lockset position of coupler.

When if the height dimension of door is big, have and at the number place door to be locked, but be carried out up to last locking devicen unlock operation during, a people in fact can not realize all hand being placed on bar handle or ball handle and in advance lock bolt being remained in lockset position of coupler for most locking devicens of implementing unlock operation in the past.

Therefore the object of the present invention is to provide and possess the locking devicen that lock bolt can be remained in the lockset position of coupler function.

Now use in the accompanying drawing to consult symbol description as follows: at the locking devicen that remains in lockset position of coupler of the present invention, lock bolt 6 is contained in the box 2 that is fixed in door 1, with first spring 3 lock bolt 6 to being slided, its direction that is embedded in fixed frame 4 aspect boards 13 lockholes 5 is suppressed, the locking bar 8 that will be contained in lock bolt 6 trench diggings 7 by pivot 9 is installed in lock bolt 6, with second spring 10 bar 8 is suppressed to the front end face 8a that makes locking bar 8 trench digging 7 the direction revolution of submerging, be set at the elastic force pressure of first spring 3 stronger than the elastic force pressure of second spring 10, base end part installing operating portion 11 at locking bar 8, lock bolt 6 is fallen back when sliding into lockset position of coupler, make from the front end face 8a of the outstanding locking bar 8 of the trench digging 7 of lock bolt 6 and be contacted with side 13a near board 13 lockholes 5.

The simple declaration of figure

Fig. 1 is the front view of the locking devicen locking state of relevant one embodiment of the invention.

Fig. 2 is the ground plan of this locking devicen.

Fig. 3 is the back elevation of this locking devicen.

Fig. 4 is the left surface figure of this locking devicen.

Fig. 5 is the right hand view of this locking devicen.

Fig. 6 is the plan view of locking devicen.

Fig. 7 is the A-A line sectional drawing of Fig. 1.

Fig. 8 is the state profile that the lock bolt of this locking devicen is remained in lockset position of coupler.

Fig. 9 is the B-B line sectional drawing of Fig. 7.

Figure 10 is that relevant this is created the front view of other embodiment locking devicen locking state.

Figure 11 is the ground plan of this locking devicen.

Figure 12 is the back elevation of this locking devicen.

Figure 13 is this locking devicen left surface figure.

Than 14 are these locking devicen right hand views.

Figure 15 is the plan view of this locking devicen.

Figure 16 is the C-C line sectional drawing of Figure 10.

Figure 17 is the state profile that the breech lock tightening latch of this locking devicen is remained in lockset position of coupler.

Figure 18 is the D-D line sectional drawing of Figure 11.

Embodiment

To the embodiment shown in Figure 9, the box 2 of box is by the metal manufacturing at Fig. 1, at the upper and lower sides of box 2 fluting 14 that installing prolongs along the glide direction of lock bolt 6 of facing the wall and meditating, establishes the peristome 15 that the front end of lock bolt 6 partly passes in and out at the left surface wall of box 2.In the front side wall of box 2, the outstanding fenestra 16 of growing crosswise of leading section of the operating portion 11 of installing locking bar 8.Metal lock bolt 6 is from aforementioned peristome 15 box 2 of packing into, metal locking bar 8 is from this peristome 15 or fenestra 16 pack into box 2 and lock bolt 6, will be inserted in the transversal openings 17 of locking bar 8 base end parts and the transversal openings 18 of lock bolt 6 by the pivot 9 that spring catch (spring pin) is become through the aforementioned fluting 14 of box 2.Therefore constitute the locking devicen that can simply assemble, and, the locking devicen of strong structure can be obtained.

Protrude in the both ends of the pivot 9 in the fluting 14, when lock bolt 6 arrived upper lock position, the left part inner face that is contacted with fluting 14 stoped lock bolt 6 to readvance.On the other hand, when lock bolt 6 arrived lockset position of coupler, the both ends of pivot 9 just were contacted with the right part inner face of fluting 14.Pivot 9 and fluting 14 are the guiding device and the arresting stop of lock bolt 6.

The inboard installing spring base projection 19 of facing the wall and meditating on the right side of box 2 is in the facial installing of the right-hand member spring base projection 20 of lock bolt 6.At the left surface of the wall 21 that seals lock bolt 6 trench diggings 7 right parts, installing spring base hole 22.Suppress first spring 3 that lock bolt uses and suppress second spring 10 that locking bar uses and all constitute with helical spring, aforementioned

spring base projection

19,20 is inserted in each end of first spring 3.Second spring 10 is inserted in aforementioned spring base hole 22 with its major part, partly is contacted with the right flank of the operating portion 11 of locking bar 8 from spring base hole 22 outstanding left sides.

Because second spring 10 is disposed at trench digging 7 opposition side with respect to pivot 9, therefore the elastic force pressure of second spring 10 is to submerge in the direction of fluting 7 towards the front end face 8a that makes locking bar 8, that is in the anticlockwise effect of Fig. 7.Front end face 8a is positioned at when not having the implantation site, except operating portion 11 locking bar 8 all is contained in the trench digging 7.

Box 2 is inserted in door 1 installing hole 23 from the door front face side, front flange portion 24 can be close to the front of door 1.Facing the wall and meditating at the upper and lower sides of box 2 is provided with and two foots of accepting insertion U font pressing plate 26 in the

groove

25,25 that front flange portion 24 is parallel, and the leading section that screws in the fixedly

primary screw

28,28 of two foot's

bolts hole

27,27 promptly blocks in the back side of door 1.By with each fixedly primary screw 28 be screwed into fixingly, two foots of pressing plate 26 are promptly blocked in the ditch wall 25a that respectively accepts

groove

25,25, and box 2 is locked in door 1 firmly admittedly.

When door 1 was opened, the end was outstanding from box 2 before the lock bolt 6, and the front end 8a of locking bar 8 submerges in the trench digging 7 of lock bolt 6.If towards the direction revolution actuating doors 1 of locking, just before revolution finished, cam ramp 12 was contacted with the 4a of opening edge portion of fixed frame 4 to the leading section of lock bolt 6 with this state.If proceed door 1 sealing revolution again, promptly overcome suppressing of first spring 3 and temporarily fall back and slide in the box 2 by the lock bolt 6 of the 4a of opening edge portion pushing cam ramp 12, the front end face 6a of lock bolt 6 just is contacted with the side 13a of the board 13 of fixed frame 4.

If door 1 returns back to the moment of full close position, lock bolt 6 suppresses from box because of the slip of first spring 3 and gives prominence to, and is embedded in the lockhole 5 of board 13 as shown in Figure 7, and is fixed in framework 4.At this locked position, suppress locking bar 8 because of the revolution of second spring 10 and promptly be in the submerge state of trench digging 7 of lock bolt 6 of front end face 8a that makes.

As opening this lock of 1, promptly by the finger that will be placed on locking bar 8 operating portions 11 to the right layback and locking bar 8 make slips that fall back of the elastic force pressure of anti-first spring 3 of lock bolt 6 grams together, make of lockhole 5 disengagings of the leading section of lock bolt 6 from board 13.If in the terminal of the rearward operation of this lock bolt 6, the elastic force pressure that operating portion 11 is overcome second spring 10 pushes towards oblique, locking bar 8 just with pivot 9 be the center towards revolution clockwise, the front end face 8a of locking bar 8 just gives prominence to from the trench digging 7 of lock bolt 6.

If one side keeps this outstanding state, one side weakens the strength of finger tip, because lock bolt 6 slightly advances because of the elastic force pressure of first spring 3, so the front end face 8a of locking bar 8 is contacted with side 13a near palm 13 lockholes 5 as shown in Figure 8.Do not make its leading section be fastened on the position of lockhole 5 again because of this contact remains in lock bolt 6, that is be supported in lockset position of coupler.Because the elastic force pressure of second spring 10 is set to the elastic force pressure less than first spring 3, therefore can sink in the trench digging 7, that is can not lose the support maintenance effect of aforementioned locking bar 8 because of second spring 10 makes locking bar 8 retreat slip.

When using most locking devicen, keep the lock bolt 6 of each locking devicen in regular turn by this way, carry out the unlock operation of last locking devicen, guarantee that this hold mode is to the open operation of implementing door 1 for door 1.If since open door 1 just forfeiture is according to the support maintenance effect of locking bar 8, so lock bolt 6 advances with regard to the elastic force pressure moment because of first spring 3, makes leading section give prominence to Len reqs from box 2.And locking bar 8 recovers revolution because of suppressing of second spring 10, and front end face 8a is submerged in the trench digging 7 of lock bolt 6.

At Figure 10 another embodiment to the present invention shown in Figure 180, second spring 10 constitutes with torsion-coil spring, and the 10a of its spiral portion is inserted in pivot 9, is contained in the notch part 29 that is formed at locking bar 8 right flanks.End, one side 10b of second spring 10 is contacted with the bottom surface of notch part 29, and the end 10c of another side is contacted with the bottom surface of the trench digging 7 of lock bolt 6.Because other structure and effect are identical with aforementioned example, therefore omit its explanation.

As mentioned above, at locking devicen of the present invention, the lock bolt 6 that will be contained in box 2 with first spring suppresses to the direction that makes leading section be embedded in fixed frame supporting plate 13 lockholes 5, locking bar 8 pivots that will be contained in the trench digging 7 of lock bolt 6 by pivot 9 in lock bolt 6, with second spring 10 locking bar 8 is suppressed revolution to the front end face 8a that makes locking bar 8 trench digging 7 the direction of submerging, be set at the elastic force pressure of first spring 3 stronger than second spring 10, lock bolt 6 is fallen back when sliding into lockset position of coupler, be contacted with side 13a by making near board 13 lockholes 5 from the front end face 8a of the 7 outstanding locking bars 8 of ditching, lock bolt 6 can be remained in lockset position of coupler really, during most locking devicens of use therefore in parallel, a people also can simply implement the unlock operation of door.

Claims

1. locking devicen that remains in lockset position of coupler, wherein, in the box (2) that is fixed in door (1), hold lock bolt (6), it being slided lock bolt (6) to the direction that is embedded in fixed frame (4) top deck lockhole (15) with first spring (3) suppresses, the locking bar (8) that will be contained in lock bolt (6) trench digging (7) by pivot (9) is installed in lock bolt (6), with second spring (10) locking bar (8) is suppressed to the submerge direction revolution of trench digging (7) of the front end face that makes locking bar (8) (8a), be set at the elastic force pressure of first spring (3) stronger than the elastic force pressure of second spring (10), lock bolt (6) is fallen back when sliding into lockset position of coupler, make front end face (8a) from the outstanding locking bar (8) of trench digging (7) be contacted with side (13a) with the elastic force pressure of second spring (10), it is characterized in that: at the base end part installing operating portion (11) of locking bar (8) near board (13) lockhole (5).

2. the locking devicen that remains in lockset position of coupler as claimed in claim 1 wherein constitutes second spring (10) with compression helical spring, is disposed at the opposition side of trench digging (7) for pivot (9).

3. the locking devicen that remains in lockset position of coupler as claimed in claim 1 wherein constitutes second spring (10) with torsion-coil spring.

4. the locking devicen of putting down in writing as claim 1 or claim 2 that remains in lockset position of coupler, wherein box (2) is inserted the installing hole (23) of door (1) from the door front face side, front flange portion (24) is blocked in the front of door (1), face the wall and meditate at the upper and lower sides of box (2) and to establish parallel with front flange portion (24) groove (25 of accepting, 25), and accept groove (25 in this, 25) two foots of the pressing plate (26) of insertion U font, to screw in the bolt hole (27 of two foots, 27) fixedly primary screw (28,28) leading section blocks in the back side of door (1), so that two foots of pressing plate (26) are blocked in the ditch wall (25a) that respectively holds ditch (25).