CN101203651B

CN101203651B - Expansion stay

Info

Publication number: CN101203651B
Application number: CN2006800219718A
Authority: CN
Inventors: 山口幸史
Original assignee: Sugatsune Kogyo Co Ltd
Current assignee: Sugatsune Kogyo Co Ltd
Priority date: 2005-06-20
Filing date: 2006-06-19
Publication date: 2010-12-22
Anticipated expiration: 2026-06-19
Also published as: WO2006137352A1; CN101203651A; JP5042825B2; JPWO2006137352A1

Abstract

An expansion stay capable of locking, at a prescribed aligned position, the inner arm (12) and the outer arm (14) of a stay body (16) having the inner arm (12) and the outer arm (14) to the inner arm is slidably fitted, comprising a lock member (26) having a lockingly engaged part (24) pivotally supported on the inner arm and engaged with the lock hole (22) of the outer arm. The lock member is energized so that the lockingly engaged part is engaged with the lock hole when an extensible arm (10) is extended, the lock hole is set to such a dimension that the locking engagement part can be displaced in an arm extending direction, and the lockingly engaged part comprises a hook (24F) energized to be locked to the edge (22E1) of the lock hole. When the locking engagement part is unlocked, the hook is disengaged from the edge of the lock hole by displacing the inner arm. In the expansion stay (10), since the hook (24F) is engaged with the edge (22E1) of the lock hole (22), the locked state of the lock member (26) can be effectively prevented from being inadvertently released.

Description

Expansion stay

Technical field

The present invention relates to the employed expansion stay of various tilting members of a kind of pivotable lid at set open position supporting box and so on, the expansion stay that particularly relates to the lock-out state that has improved Lock Part, this Lock Part is at the set mutual chimeric sliding freely interior outer arm of telescopic location locking.

Background technology

This expansion stay generally has: the stay bolt main body comprises inner webs (the first arm) and supplies the chimeric sliding freely outer webs (second arm) of this inner webs; Locking mechanism, interior outer arm in set this stay bolt main body of coincidence locking position, this locking mechanism by by the inner webs pivot suspension and have the locking snapin part Lock Part constitute, this locking snapin part snaps onto in the lock hole of outer webs, lock at both allocations of interior outer arm elongation and to decide the snapin part when aliging with the lock hole of outer webs, this Lock Part by spring energized so that lock the snapin part and snap onto in the described lock hole.

Opposition side in the locking snapin part, Lock Part has the latch-release operating portion in the opening that should be entrapped in outer webs under the lock-out state of interior outer arm, in the time should unlocking, by finger presses latch-release operating portion, to lock the snapin part and from lock hole, pull out, thereby interior outer arm can be moved to shrinkage direction.

But, in such structure, for example, expansion stay is used to keep the open mode of casing and lid, article taken out or when packing casing into, have such worry, promptly pressure-lock mistakenly parts the latch-release operating portion and unexpectedly with the latch-release of expansion stay.

Patent documentation 1: Japanese kokai publication hei 4-128484 communique

Summary of the invention

The object of the present invention is to provide a kind of expansion stay that can prevent effectively that accident from removing the lock-out state of Lock Part.

According to the present invention, a kind of expansion stay is provided, it is characterized in that having: the stay bolt main body comprises inner webs and supplies the chimeric sliding freely outer webs of this inner webs; And locking mechanism, interior outer arm in set coincidence locking position stay bolt main body, this locking mechanism by be bearing in inner webs and the outer webs any on and have the locking snapin part Lock Part constitute, the locking snapin part snaps onto in the lock hole of another arm, Lock Part is applied in active force, making locks at both allocations of interior outer arm elongation decides the snapin part when aliging with lock hole, the locking snapin part snaps onto in the lock hole, the locking snapin part that lock hole is set to Lock Part can lock the hook that the snapin part has the edge that can be limited to lock hole to the size of the flexible direction displacement of arm.

In expansion stay of the present invention, the hook of the locking snapin part of Lock Part can be designed to, and only is limited to the lateral edges on the flexible direction of lock hole, also can be designed to, and is limited to the both sides of the edge on the flexible direction of lock hole.In addition, the dogging that no matter locks the snapin part ends in a side or the both sides of lock hole, and the size of lock hole all is the size that the hook of locking snapin part can be thrown off from the edge of lock hole.

Preferably, Lock Part passes through pivot and the side plate of pivot suspension any arm in interior outer arm, and hook is applied active force to be limited to the edge of lock hole by spring, and spring is wound on the pivot, and an end is limited to Lock Part, and the other end is limited to arm.

Can be designed to, under the user mode of expansion stay, the hook of the locking snapin part of Lock Part is applied in active force to be limited to the edge of lock hole by the gravity of the flexible direction of outer arm in acting on, also can be designed to, the hook of the locking snapin part of Lock Part is applied in active force to be limited to the edge of lock hole by the spring of the flexible direction of outer arm in acting on.

Like this, lock hole is set to the locking snapin part of Lock Part can be to the size of the flexible direction displacement of arm, the locking snapin part has the hook that is limited to the lock hole edge when being applied in active force, to lock the locking that the snapin part is pressed into the parts that can not unlock even if want with finger, only outer arm makes the hook of locking snapin part of Lock Part after throw off at the edge of lock hole to flexible direction displacement in making, just can be pressed into the locking snapin part by finger, therefore, can be not unexpectedly with the latch-release of expansion stay, the locking that can keep expansion stay reliably.

Description of drawings

Fig. 1 is the summary side elevation of the different user modes of expression expansion stay of the present invention.

Fig. 2 is the front view of the expansion stay of an embodiment of the present invention.

Fig. 3 is the rear elevation of the expansion stay of Fig. 2.

Fig. 4 is the vertical view of the expansion stay of Fig. 2.

Fig. 5 is the central longitudinal sectional view of the expansion stay of Fig. 2.

Fig. 6 is the enlarged side view of the expansion stay of Fig. 2.

Fig. 7 is the VII-VII line amplification view of the expansion stay of Fig. 2.

Fig. 8 is the expansion stay lock-out state of presentation graphs 2 and the vertical sectional view of removing the state of operation thereof.

Fig. 9 and Fig. 8 are roughly the same, be expression the present invention other embodiment expansion stay lock-out state and remove the vertical sectional view of the state of operation.

Figure 10 and Fig. 8 and Fig. 9 are roughly the same, be expression the present invention another other embodiment expansion stay lock-out state and remove the vertical sectional view of the state of operation.

Figure 11 is the front view of the expansion stay of other embodiment of the present invention.

Figure 12 is the central longitudinal sectional view of the expansion stay of Figure 11.

Figure 13 is the enlarged side view of the expansion stay of Figure 11.

Figure 14 is the XIV-XIV line amplification view of the expansion stay of Figure 11.

The specific embodiment

Explain embodiments of the present invention with reference to accompanying drawing, Fig. 1 represents several examples of the user mode of expansion stay 10 of the present invention, no matter which is, expansion stay 10 all be arranged at casing 1 and by hinge 3 pivot suspensions between the lid 2 of this casing 1, expansion stay 10 is used for cover elongation in 2 o'clock and 2 states of opening are covered in maintenance opening.Fig. 1 (A) expression will cover 2 front openings, the expansion staies 10 that are mounted to switching casing 1 and will be used to keep to cover the situation that 2 pivotal bearing parts with top edge are the state upwards opened of center, Fig. 1 (B) expression will cover 2 and is mounted to the upper surface open, the expansion staies 10 that open and close casing 1 and be used to keep cover the situation that 2 pivotal bearing parts with the rear are the state upwards opened of center, and Fig. 1 (C) represents to cover 2 front openings, the expansion staies 10 that are mounted to switching casing 1 and is used to keep to cover the situation that 2 pivotal bearing parts with lower limb are the state opened of center downwards.

Fig. 2 represents the expansion stay 10 of one embodiment of the present invention.This expansion stay 10 has: stay bolt main body 16 comprises inner webs 12 and supplies the chimeric sliding freely outer webs 14 of this inner webs 12; Locking mechanism 20 is at the interior

outer arm

12,14 of set this stay bolt main body 16 of coincidence locking position.Interior

outer arm

12,14 is made by sheet metal processing stainless steel or other suitable metal material, but also can be made by resin or other material.This expansion stay 10 is suitable for using under the state of Fig. 1 (A) or Fig. 1 (B).

Interior

outer arm

12,14 to be installed in casing 1 freely and to cover on 2 and have cover tubular mount pad 12M, the 14M of riveted joint in order to rotate in the end pivot of its opposition side, and these

arms

12,14 are supported on casing 1 and cover 2 by pivot 1P, the 2P (with reference to Fig. 1) of

perforation mount pad

12M, 14M.

In illustrated embodiment, by Fig. 6～Fig. 8 as can be known, inner webs 12 has the form that the cross section that is made of side plate 12RS and down horizontally extending from it

board

12U, 12L up and down is the U font that side roughly falls, in the position that Lock Part described later is installed, shown in Reference numeral 12UN, upper plate portion cut (with reference to Fig. 7).In addition, same, by Fig. 6～Fig. 8 as can be known, outer webs 14 has the cross section and is the roughly form of C font, and this outer webs 14 comprises: rear side board 14RS; The horizontally extending down from it continuous 14U of board up and down, 14L; Make progress and be spaced from each other vertically extending front side, compartment of terrain board 14FSU, 14FSL downwards in the edge of the open side of board up and down from these.

Locking mechanism 20 by by pivot 26S pivot suspension in the side plate 12RS of inner webs 12 and have locking snapin part 24, be roughly that the rod lock limiting-members 26 of L font constitutes, this locking snapin part 24 snaps onto in the lock hole 22 of the upper plate portion 14U that is arranged at outer webs 14.This Lock Part 26 is applied active force by spring 28, and making locks at both allocations of interior

outer arm

12,14 elongations decides snapin part 24 when aliging with the lock hole 22 of outer webs 14, locks snapin part 24 and snaps onto in the lock hole 22.In illustrated form, spring 28 is made of the helical spring that is wound on the pivot 26S, and an end card ends in being arranged at the stop hole 26H of Lock Part 26 (with reference to Fig. 8), and the other end is limited to the inner surface (with reference to Fig. 7) of the lower board unit 12L of inner webs 12.In addition, because of locking the cut part 12N of upper plate portion 12U that snapin part 24 is arranged at inner webs 12, so when locking snapin part 24 snapped onto in the lock hole 22, upper plate portion 12U can not become obstruction.

Particularly can at length know by Fig. 8, lock hole 22 is sized to, the locking snapin part 24 of Lock Part 26 can be to flexible direction (the arrow B direction of the arrow A direction of Fig. 8 (B) and Fig. 8 (the D)) displacement of arm, and locking snapin part 24 has the hook 24F of the edge 22E1 that can be limited to lock hole 22.In addition, as back and user mode illustrate explicitly, under the user mode of expansion stay, this hook 24F is applied in active force to be limited to the edge of lock hole by the gravity of the flexible direction of outer arm in acting on, but also can be designed to, be applied in active force to be limited to the edge of lock hole by the spring that acts on the flexible direction of interior outer arm.

In the form of Fig. 5～Fig. 8, the hook 24F of the locking snapin part 24 of Lock Part 26 is arranged to only to be limited to a lateral edges (edge of the shrinkage direction) 22E1 of the flexible direction of lock hole 22, the size (with reference to Fig. 8 (B), (C)) that the size of lock hole 22 (size of flexible direction) can be thrown off from the edge 22E1 of lock hole 22 for the hook 24F of locking snapin part 24.

Explain the user mode of this expansion stay 10 with reference to Fig. 8, this expansion stay 10 for example, shown in Fig. 1 (A), be installed on casing 1 and upwards between the lid 2 of opening type, then during closing cap 2, shown in Fig. 8 (D), the state that the inner webs 12 of expansion stay 10 is retracted fully to enter outer webs 14 is between lid 2 and casing 1.In addition, under the state of Fig. 1, inner webs 12 is installed on covers 2 sides, and outer webs 14 is installed on the inboard of casing 1.

To cover 2 opens upward, then expansion stay 10 is with respect to casing 1 and cover 2 pivoted, inner webs 12 is pulled out from outer webs 14 and is extended simultaneously, but when lid 2 rises to than the state of Fig. 1 (A) a little more during the top, then the locking snapin part 24 because of Lock Part 26 is positioned to enter in the lock hole 22, so by the active force of spring 28, the locking snapin part 24 of Lock Part 26 snaps onto (with reference to Fig. 8 (B)) in the lock hole 22.Under this state, hand is taken away from covering 2, then cover 2 owing to deadweight has the trend of getting back to the below, so inner webs 12 is to the shrinkage direction displacement, thereby the hook 24F of locking snapin part 24 is limited to the edge 22E1 (with reference to Fig. 8 (A)) of lock hole 22.

Like this, hook 24F is limited to the edge 22E1 of lock hole 22, even if then want locking snapin part 24 inside side arms 12 are pressed into, can not throw off from lock hole 22 because of locking snapin part 24, so, can not remove the locking of the elongation state of expansion stay 10.Therefore, when article being taken out or put into casing 1,, also can unexpectedly not remove the locking of elongation state even if locking snapin part 24 is pushed mistakenly, thus the locking that can keep expansion stay 10 reliably.

When closing cap 2, will cover 2 and lift a little upward, temporarily inner webs 12 is pulled out to prolonging direction, shown in Fig. 8 (B), the direction displacement that Lock Part 26 is left to the edge 22E1 from lock hole 22.Under this state, because of the hook 24F of locking snapin part 24 throws off from the edge 22E1 of lock hole 22, so, shown in Fig. 8 (C), being pressed into to arrow F direction by utilizing finger will lock snapin part 24, Lock Part 26 is from lock hole 22 disengagements, and locking is disengaged.

Therefore, during closing cap 2, shrink in the inner webs 12 retraction outer webs 14 downwards, lid 2 is closed fully and is then become the state shown in Fig. 8 (D).In addition, by Fig. 8 (C) as can be known, even if be pressed into Lock Part 26 by finger, the part of Lock Part 26 also remains in the lock hole 22, but because of the nip below of upper plate portion 12U of inner webs 12 of hook 24F, so, inner webs 12 can by with the upper surface guiding of the continuous locking snapin part 24 of hook 24F in enter in the outer webs 14, thereby can not hinder inner webs 12 moving to shrinkage direction.In addition, when expansion stay 10 uses shown in Fig. 1 (B), also can or unlock by identical method locking.

Other embodiment of the present invention such as Fig. 9 and shown in Figure 10, in the embodiment of Fig. 9, the hook 24F that removes locking snapin part 24 is arranged to be limited to the prolonging direction edge 22E2 this point of the lock hole 22 of outer webs 14, other embodiments with Fig. 1～Fig. 8 are identical, in addition, in the embodiment of Figure 10, remove both sides that the hook 24F (22F1 and 22F2) of locking snapin part 24 is arranged at locking snapin part 24 with the shrinkage direction edge 22E1 of the lock hole 22 that is limited to outer webs 14 and any this point among the prolonging direction edge 22E2, other parts are identical with the embodiment of Fig. 1～Fig. 9.The identical identical Reference numeral of part mark.

The expansion stay 10 of Fig. 9 embodiment, shown in Fig. 1 (C), can being applied the situation of active force to prolonging direction under, use expansion stay under the lock-out state of expansion stay 10 10, at this moment, apply active force by below (direction of opening) to lid 2, inner webs 12 is applied in active force on prolonging direction, the hook 24F of locking snapin part 24 is limited to the edge 22E2 of lock hole 22, in the time of should unlocking, the lid 2 of Fig. 1 (C) is lifted a little upward, make inner webs 12 to the shrinkage direction displacement, allow to be pressed into locking snapin part 24 thus and unlock by finger.

The expansion stay 10 of Figure 10 embodiment can be with the arbitrary occasion in the described occasion below, promptly, as Fig. 1 (A) (B) shown in, cover 2 by opening, expansion stay 10 is applied the active force of shrinkage direction, or shown in Fig. 1 (C), cover 2 by opening, expansion stay 10 is applied the active force of prolonging direction.In this embodiment, for the hook 24F1 of a side or 24F2 are removed from the edge 22E1 that is limited to lock hole 22 or the state of 22E2, remove card ends to prolonging direction or shrinkage direction displacement, at this moment, be necessary that in corresponding edge 22E2 that hook 24F2 or 24F1 than opposite side engage to lock hole 22 or the position on the 22E1 position (with reference to Figure 10 (B)) before more close stops displacement.

In addition, in Fig. 1 (A)～(C), under lid 2 states of opening, cover the power that 2 pairs of expansion staies 10 apply flexible direction, but, for example laterally open, when expansion stay 10 is not acted on the power of flexible direction, also can between interior

outer arm

12,14, apply acting force of the spring at lid 2, so that the power of effect prolonging direction or shrinkage direction, the power of this spring need be the more weak power that does not hinder inside and

outside arm

12,14 to stretch.

In the above-described embodiment, a lock hole 22 is set on outer webs 14 and locks an elongation state, but self-evident, a plurality of lock holes 22 also are set on outer webs 14 to devices spaced apart in the longitudinal direction, thereby lock a plurality of different elongation states.

Other embodiment of the present invention such as Figure 11～shown in Figure 14, in this embodiment, remove Lock Part 26 and go up this point by pivot 26S pivot suspension in the side plate 14RS of outer webs 14, the upper plate portion 12U that lock hole 22 is arranged at inner webs 12, other parts are substantially the same with the embodiment of Fig. 1～Figure 10.The identical identical Reference numeral of part mark.In addition, as shown in Figure 12, when the locking snapin part 24 of Lock Part 26 is limited to the edge 22E1 of lock hole 22,, is provided with at this upper plate portion 12U and dodges hole 14UN in order to make locking snapin part 24 not by the upper plate portion 14U of outer webs 14 restriction.

Similarly, in this embodiment, interior

outer arm

12,14 elongations, when Lock Part 26 aligns with lock hole 22, then pass through the active force of spring 28, locking snapin part 24 enters lock hole 22, and by the active force on the prolonging direction of

outer arm

12,14 in acting on, hook 24F is limited to the edge 22E1 of lock hole 22.When unlocking,

outer arm

12,14 returns, after hook 24F throws off from the edge 22E1 of lock hole 22, goes into to lock snapin part 24 by hand to shrinkage direction in making.

In addition, identical with before embodiment, hook 24F both can be limited to the edge 22E2 of lock hole 22 opposition sides, also can two hook 24F be set in the both sides of locking snapin part 24, was limited to the edge of the correspondence of lock hole 22 by any hook 24F.

In addition, in the above-described embodiment, Lock Part 26 is center and swingingly obtain pivot suspension with pivot 26S, but also can be designed to can be supported in the mode of the direction top offset vertical with the flexible direction of two

arms

12,14.

Utilizability on the industry

According to the present invention, only make interior outer arm make the hook of locking snapin part of Lock Part after throw off at the edge of lock hole to flexible direction displacement, just can be pressed into the locking snapin part by finger, therefore, can be not unexpectedly with the latch-release of expansion stay, the locking that can keep reliably expansion stay, thereby the utilizability on the raising industry.

Claims

1. expansion stay is characterized in that having: stay bolt main body (16) comprises inner webs (12) and for the chimeric sliding freely outer webs (14) of described inner webs; And locking mechanism (20), interior outer arm in the set described stay bolt main body of coincidence locking position, described locking mechanism by on any arm that is bearing in described inner webs and the outer webs and the Lock Part (26) with locking snapin part (24) constitute, described locking snapin part snaps onto in the lock hole (22) of another arm, described Lock Part is applied in active force, when making the above locking snapin part of both allocations of in described outer arm elongation align with described lock hole, described locking snapin part connects described lock hole and gives prominence to and snap onto in the described lock hole to the outside, the locking snapin part that described lock hole is set to described Lock Part can be kept and is applied in active force and make from described lock hole to the outstanding state in outside and to the size of the flexible direction displacement of arm, described locking snapin part has the hook (24F) at the edge that can be limited to described lock hole, make in that inner webs is relatively slided with respect to described outer webs on the position that described hook leaves from the edge of described lock hole, becoming can be by hand from the state of described locking snapin part with latch-release.

2. expansion stay as claimed in claim 1 is characterised in that, the hook of the locking snapin part of described Lock Part is designed to, and only is limited to the lateral edges on the flexible direction of described lock hole.

3. expansion stay as claimed in claim 1, it is characterized in that, the hook of the locking snapin part of described Lock Part is arranged at the both sides of described locking snapin part, can be limited in the both sides of the edge on the flexible direction of described lock hole any corresponding to the position in the lock hole of described locking snapin part respectively.

4. as each described expansion stay in the claim 1～3, it is characterized in that, described Lock Part is by pivot (26S) pivot suspension side plate of any arm in the outer arm in described, described hook is applied active force to be limited to the edge of described lock hole by spring (28), described spring is wound on the described pivot, one end is limited to described Lock Part, and the other end is limited to described arm.

5. as each described expansion stay in the claim 1～3, it is characterized in that, under the user mode of described expansion stay, the hook of the locking snapin part of described Lock Part is applied in active force to be limited to the edge of described lock hole by the gravity that acts on the flexible direction of described interior outer arm.

6. as each described expansion stay in the claim 1～3, it is characterized in that the hook of the locking snapin part of described Lock Part is applied in active force to be limited to the edge of described lock hole by the spring that acts on the flexible direction of described interior outer arm.