CN202283832U

CN202283832U - Ring mechanism with steady low-profile shell

Info

Publication number: CN202283832U
Application number: CN2011203350719U
Authority: CN
Inventors: 刘助贵
Original assignee: World Wide Stationery Manufacturing Co Ltd
Current assignee: World Wide Stationery Manufacturing Co Ltd
Priority date: 2011-09-07
Filing date: 2011-09-07
Publication date: 2012-06-27
Anticipated expiration: 2021-09-07

Abstract

The utility model relates to a ring mechanism with a steady low-profile shell, which is provided with a slender shell, wherein the slender shell is provided with a central part and a lateral edge, the lateral edge is positioned on the opposite side of the central part and longitudinally extends. A hinge plate is supported by the shell so as to be convenient for pivoted movement. Rings for keeping loose sheets respectively comprise a first ring-shaped component and a second ring-shaped component. The first ring-shaped component is installed on the hinge plate and can move between a closing position and an opening position along with the movement of the hinge plate opposite to the second ring-shaped component. The shell is provided with an opening which is used for receiving one of the first ring-shaped components and transversely and inwards extends towards the center of the shell. The shell is provided with a vault-forming part on the inner edge of the opening. The vault-forming part of the shell is spaced apart from the longitudinal central line of the shell and is projected above the longitudinal adjacent part of the shell which is spaced at an equal distance apart from the central line.

Description

Ring mechanism with firm low profile housing

Technical field

The utility model relates in general to the ring binder mechanism that is used to keep loose-leaf; And relate more particularly to such ring binder mechanism: annular construction member is installed on the pivot-hinge carrier bar; The pivot-hinge carrier bar is supported by metal shell, and said metal shell has the opening that is used to accept annular construction member at its side.

Background technology

The various ring mechanism that is used to keep loose-leaf known in the art.One type prior art ring mechanism comprises a plurality of rings that are made up of the paired annular construction member that is installed on the pivot-hinge carrier bar (the pivot-hinge carrier bar is known as sometimes and holds bar, ring support member or bracket).Metal shell has curved gasket ring down, and said curved gasket ring down extends along the side of its relative longitudinal extension.Flap is juxtaposed to each other and longitudinal extension in housing.The outer ledge of each flap receive the side edge of housing by the passage that curved gasket ring forms down in.Annular construction member extends from flap through the opening in the housing (for example, the recess that extends from the side of housing), and therefore annular construction member is formed on the successive turn ring of housing top extension together when ring is closed.Flap is sized to usually and makes the combined width that is in its flap not in the deformation structure time when housing greater than the distance between the passage on the relative side of housing.When ring moved between open position and closing position, flap pivoted through the copline position.As a result, open or closed hoop requirement housing distortion with the side of housing is expanded open enough far to hold the combined width that is in the locational flap of copline.This layout of characteristic makes metal shell elbow ring elastic force, and said elbow ring elastic force is tending towards environmental protection is held on the closing position when ring is closed, and said elbow ring elastic force is tending towards environmental protection is held on the open position when opening when encircling.At United States Patent(USP) No. 4,552, the embodiment of the ring mechanism of such prior art has been described in 478.

Through process the housing that housing suitably manufactures above-described ring mechanism by sheet metal.Expectation makes cost minimization through processing housing by the sheet metal with minimum thickness that necessary intensity still is provided.Also expectation is processed housing and is made that the middle body between side of housing is low relatively to dwindle the profile of ring mechanism.Housing has occupied some of the space that can be occupied by loose-leaf.Therefore, under the situation that all others are equal to, has the ability that ring mechanism than the low profile housing has the loose-leaf that the loose-leaf of the ring mechanism maintenance that keeps than has the higher profile housing Duos.

Yet, have the thinness of restriction housing and/or other design constraint of the reducible degree of profile.These intrafascicular approximately are, housing must be enough be applied to the power on it to bear in ring mechanism operating period by flap and other object by force.Another constraint is that housing must enough be applied to the power on it to bear at ring mechanism by force between erecting stage.And expectation sometimes uses automaton to come mounting ring mechanism.The opening that the machinery requirement housing that is used at least some types of mounting ring mechanism is used for accepting annular construction member for the recess at the edge that extends to housing along all directions so that annular construction member can laterally be inserted into their openings separately from the side of opening.Yet this makes in housing, to have relatively weak narrow neck shape portion, and the middle body of its middle shell extends between the opening that is used for a pair of annular construction member on the relative side of housing.One of the weakest point that this narrow neck shape portion is a housing and make that housing is easy to bending before housing is reinforced by hard relatively flap is especially made in the process of ring mechanism.

Because the intensity related with thicker metal improves and/or by the bending moment that section shape causes increase and/or the opening of the annular construction member that the housing of higher profile capable of using is realized between broad neck shape portion, processing and/or be shaped to the housing with higher relatively profile by thicker metal can be more firm.If the opening of ring does not extend to the side of housing along all directions, then housing will be stronger, but this requires the end of annular construction member to insert and passes through opening.This is complicated more installation step, and when opening not when all directions extend to the side of housing, be suitable for when opening be that in the machine that uses when extending to the recess of side of housing along all directions at least some can not be used.Usually, its split shed is not accomplished manually along the assembling of ring mechanism that all directions extend to the side of housing, rather than uses automaton.Therefore, when the opening of annular construction member not when all directions extend to the side of housing, have the fringe cost that is associated with the assembling of complicacy more.

The utility model content

A scheme of the utility model is the ring mechanism that is used to keep loose-leaf.Said mechanism comprises thin-long casing, and said thin-long casing has middle body and the side of longitudinal extension on the opposite side of said middle body.First flap and second flap pivot by housings support so that with respect to housing and move.Said mechanism has the ring that is used to keep loose-leaf.Each ring comprises first annular construction member and second annular construction member.Said first annular construction member is installed on said first flap and can moves between closing position and open position with respect to the pivoting action of said second annular construction member along with first flap.First annular construction member and second annular construction member form roughly continuous closed loop on closing position.First annular construction member and second annular construction member form the discontinuous circle ring of opening on open position.Housing has one the opening that is used for accepting first annular construction member.Opening laterally inwardly extends towards the longitudinal centre line of thin-long casing.Said housing has vault formation portion at the inside edge of opening.The said vault formation portion of housing and the longitudinal centre line of housing spaced apart and protruding to housing with centreline space more than vertical adjacent part of same distance.

Another program of the utility model is the ring mechanism that is used to keep loose-leaf, and said ring mechanism comprises thin-long casing, and said thin-long casing has middle body and the side of longitudinal extension on the opposite side of said middle body.First flap and second flap pivot by housings support so that with respect to housing and move.Said mechanism has the ring that is used to keep loose-leaf.Each ring comprises first annular construction member and second annular construction member.Said first annular construction member is installed on first flap and can moves between closing position and open position with respect to the pivoting action of second annular construction member along with first flap.First annular construction member and second annular construction member form roughly continuous closed loop on closing position.First annular construction member and second annular construction member form the discontinuous circle ring of opening on open position.Housing has one the opening that is used for accepting first annular construction member.Said opening laterally extends towards the longitudinal centre line of thin-long casing.Said housing has upset lip shape portion at the inside edge of opening.

Another program of the utility model is the ring mechanism that is used to keep loose-leaf.Said ring mechanism comprises thin-long casing, and said thin-long casing has middle body and the side of longitudinal extension on the opposite side of said middle body.First flap and second flap pivot by housings support so that with respect to housing and move.Said mechanism has the ring that is used to keep loose-leaf.Each ring comprises first annular construction member and second annular construction member.Said first annular construction member is installed on first flap and can moves between closing position and open position with respect to the pivoting action of second annular construction member along with first flap.First annular construction member and second annular construction member form roughly continuous closed loop on closing position.Said first annular construction member and second annular construction member form the discontinuous circle ring of opening on open position.Said housing has one the opening that is used for accepting first annular construction member.Said opening laterally extends towards the longitudinal centre line of thin-long casing.Said housing has protruding block at the inside edge of housing.Said block structure is for extending to more than said one segmentation of first annular construction member when ring is positioned on the closing position.Said housing further comprises dimple, said dimple along the longitudinal centre line of housing location and towards flap to extending below so that when ring moves on the open position, protect housing to avoid the damage of flap.Said dimple axially departs from annular construction member on housing.

Other purpose and characteristic are conspicuous and part is pointed out hereinafter.

Description of drawings

Fig. 1 is the stereogram that is installed to an embodiment of the ring mechanism on the notebook strip of paper used for sealing;

Fig. 2 is the plan view from above of ring mechanism shown in Figure 1;

Fig. 3 is the face upwarding view of ring mechanism shown in Figure 1;

Fig. 4 is the exploded perspective view of ring mechanism shown in Figure 1;

Fig. 5 is the stereogram of ring mechanism shown in Figure 1, on the plane that comprises the line 5-5 on Fig. 2, cuts open to show internal feature;

Fig. 6 is the stereogram similar with Fig. 5, but has shown the ring that is shown in an open position;

Fig. 7 is the amplification stereogram of the part of ring mechanism shown in Figure 1, has shown the opening in the housing of one the ring mechanism that is used for annular construction member;

Fig. 8 is the amplification stereogram of ring mechanism shown in Figure 1, but similar annular construction member with Fig. 7 is positioned on the open position;

Fig. 9 is the cutaway view of the ring mechanism shown in Figure 1 of intercepting on the plane that comprises the line 9-9 on Fig. 2;

Figure 10 is the enlarged side view of part of the housing of ring mechanism shown in Figure 1, has shown in the opening of the housing that is used for annular construction member; And

Figure 11 is the amplification stereogram of another embodiment of ring mechanism, and said ring mechanism has the opening that is used for annular construction member, and said opening does not extend to the side of the housing of ring mechanism along all directions.

Reference numeral corresponding in all accompanying drawings is represented corresponding components.

The specific embodiment

With reference to accompanying drawing, Fig. 1-10 illustrates an embodiment of ring mechanism, generally is expressed as 101, and said ring mechanism is suitable for keeping the loose-leaf (not shown).As shown in the figure, mechanism 101 is installed on the strip of paper used for sealing 103 (for example, the notebook strip of paper used for sealing), and said strip of paper used for sealing 103 is suitable for optionally covering or exposing any loose-leaf that remains on the ring 105.For example, the strip of paper used for sealing among Fig. 1 103 comprises one ridge 107 and is attached to the front and back strip of paper used for sealing part 109,111 of the opposite side of one ridge with hinge.Ring mechanism 101 can be installed in each position on the strip of paper used for sealing 103.For example, usually be installed to ring mechanism on the one ridge or the strip of paper used for sealing adjacent part with one ridge in one on, but can ring mechanism be installed on any position within the scope of the utility model.In Fig. 1, mechanism 101 is installed on the one ridge 107 of strip of paper used for sealing 103.Ring mechanism 101 also can be installed on the different types of strip of paper used for sealing or substrate within the scope of the utility model.For example; Strip of paper used for sealing can be flexible sheet material; Said flexible sheet material and strip of paper used for sealing shown in Figure 1 are operated similarly, except the flexing between one ridge and the strip of paper used for sealing part is stretching above the big zone or above a plurality of false hinge lines so that the mobile good pivot axis of single qualification that is unlimited between one ridge and the strip of paper used for sealing part.Similarly, ring mechanism 101 can be installed on other object within the scope of the utility model, such as clamping plate, simple and easy case etc.

Mechanism 101 comprises thin-long casing 115 (Fig. 4).Suitably form housing 115 through impression a slice thin flat sheet of metal.The type that is used to make the metal of housing 115 can change within the scope of the utility model.For example, metal shell 115 can be processed by stainless steel, and it can be nickel plating if expect limit corrosion.And housing can be processed by polymeric material or other nonmetallic materials as expected within the scope of the utility model.Housing 115 comprise protruding middle body 117 and on the opposite side of middle body from middle body to the longitudinal extension side 119 that extends below.Curved gasket ring 121 forms so that on the relative side that the length along housing of housing is extended, form a pair of relative passage along the side 119 of housing 115 down.Housing 115 suitably has along one or more rib-shaped pieces 125 of middle body 117 longitudinal extensions of housing.For example, the housing 115 in illustrated embodiment has a pair of rib-shaped piece 125, in the rib-shaped piece 125 one roughly each side along the whole length of housing 115 along middle body 117 extend.The additional rib shape section 127 of short longitudinal extension suitably is formed in the housing 115 adjacent with the terminal adjacent ring of housing 115 105 and is positioned on the rib-shaped piece 125 horizontal outside spaced positions with whole length.

Pair of hinges plate 131 (Fig. 3-6) is supported so that pivot mobile with respect to housing by housing 115.Especially; A pair of hard flap 131 elongated, general flat (for example; By processing than the thick stainless steel of sheet metal that is used for making housing 115) be positioned between the housing side 119 abreast and the below of middle body 117, so the outward flange of flap receives in the passage 123 that the following curved gasket ring 121 that extended by the side along housing forms.When housing was in the lax not deformation structure, the combined width of flap 131 surpassed by curved gasket ring 121 down and is formed on the distance between the passage 123 in the side 119 of housing.Flap 131 has fin 133 (Fig. 3 and Fig. 4) along their inward flange, and when the hinge lines 135 that meets at this along the inward flange of flap at flap was pivoted relative to each other, fin 133 kept flap with side by side relationship.

Mechanism 101 also comprises a plurality of rings 105 that are used to keep loose-leaf.Each ring 105 comprises a pair of annular construction member 141.At least one that is used for each ring annular construction member 141 of 105 be installed to that in the flap 131 one goes up and can along with flap with respect to the pivoting action of its corresponding annular construction member and mobile between closing position (Fig. 5) and open position (Fig. 6).On closing position, the annular construction member 141 of each ring 105 is formed for keeping the roughly continuous closed loop of loose-leaf.On open position, annular construction member 141 is formed for adding loose-leaf and/or removes the discontinuous circle ring of opening of loose-leaf from mechanism 101.In illustrated embodiment, two annular construction members 141 of every pair are installed on one of the correspondence of flap 131.When flap 131 and annular construction member 141 pivot between open position and closing position; Flap passes coplanar each other orientation, has made housing 115 distortion the side 119 of housing is expanded enough far away to hold the combined width of flap at this some place flap.This toggle action makes housing 115 apply the elastic force bias force, when ring is closed, is tending towards ring 105 is remained on the change location, and is tending towards environmental protection is held on the open position when ring is shown in an open position last time.

Housing 115 has the opening 151 that is used to accept annular construction member 141 at its side 119.Opening 151 laterally inwardly extends towards the longitudinal centre line 153 of thin-long casing 115.Opening 151 is the suitable recess that the side 119 from housing laterally inwardly extends, like Fig. 4, Fig. 7 and shown in Figure 8.Because recess 151 extends to the side 119 of housing 115 along all directions, can annular construction member 141 laterally be inserted (for example, using automaton) between 101 erecting stages from the next door of housing at ring mechanism, and the end that need not annular construction member is inserted logical opening.The opening 151 that is used for each ring vertical aligning of 105 has formed narrow relatively neck shape portion 161 at housing 115, and at said neck shape portion 161 places, the width W 1 (Fig. 9) of housing is fully less than the overall width W2 of housing between the side 119.When opening 151 was recess, in illustrated embodiment, only the unexpected bending at neck shape portion place provided endurance to housing in the narrow relatively neck shape portion 161 of housing 115.

Opening 151 be unlike in some conventional ring mechanisms the opening that kind towards the longitudinal centre line 153 of housing 115 extend internally so far away.Housing 115 suitably has (the Fig. 7-Fig. 9) of vault formation portion 165 at least one inside edge of opening 151.As shown in Figure 4, the inside edge that in housing, is used for each opening 151 of annular construction member 141 exists roughly the same vault to form housing section 165, but this is unwanted in the broad range of the utility model.If expectation; Some advantages of the utility model can be less than all opening parts that are used for annular construction member and have power supply and form housing section and realize through being included in, and only include but not limited at all openings on the side of housing, be used for only one or more but less than pair of openings on the opposite side of the housing of the annular construction member of all rings or even the single opening of opening only.

The vault formation portion 165 of housing 115 is properly spaced out so that the inward flange of opening deviates from longitudinal centre line with the longitudinal centre line 153 of housing.For example, like Fig. 7 and shown in Figure 8, in the rib-shaped piece 125 of the longitudinal extension of complete length one between the longitudinal centre line 153 of each the vault formation portion 165 of housing and housing.Vault formation portion 165 is protruding to housing and vertical adjacent parts center line 153 spaced apart same distance more than 167.Vault formation portion 165 is also spaced apart with the center line 153 of housing 115 through the non-vault formation portion 173 of housing; Said non-vault formation portion 173 axially aligns with the opening 151 that is used for adjacent annular member 141 and not protruding axial adjacent part to housing more than 175, and the separated distance of said and axial adjacent part 175 and centreline space equates with the separated distance of centreline space with non-vault formation portion 173.

The vault formation portion 165 of housing 115 forms vault 171 in the lower surface of inside edge at housing of opening 151.Vault 171 is the space that is formed by the bottom side of housing 115 in the furred ceiling, and the bottom side of said housing 115 is in the position of vertically contiguous vault extends above the bottom side of housing and equate with longitudinal centre line 153 laterally spaced distances with the longitudinal centre line 153 laterally spaced distances and the vault of housing.The part of the segmentation that is associated with corresponding opening 151 that vault 171 sizings and being shaped to are accepted annular construction member 141 at least.Vault 171 laterally inwardly extends from the inward flange of opening 151.For example, as shown in Figure 7 when closed when ring, the part of the segmentation adjacent with opening 151 of annular construction member 141 receives in the vault 171.The vault formation portion 165 of housing 115 provides modification space for annular construction member 141, when especially annular construction member 141 is in the close position.For example, though the relative low profile of housing and/or do not need the inappropriate narrow neck shape portion 161 in the middle body 117 of housing, the vault 171 that is formed on vault formation portion 165 belows of housing 115 allows annular construction members 141 to be pivoted to closing position.

For example, the width W 1 (Fig. 9) of neck shape portion 161 suitably be at least about housing width W 2 40 percent, more suitably be at least about housing width W 2 50 percent, the most suitably be at least about housing width W 2 65 percent.Therefore; The vault formation portion 165 of housing 115 can be convenient to the use of low profile housing and not limit the range of movement of annular construction member 141 and can help processing housing by thin sheet metal or other material, has increased between the housing pairs of openings 151 at the neck shape portion crooked tolerance in place because the vault by housing of neck shape portion 161 forms the additional width that portion 165 produces.And; With reference to figure 9; Vault formation portion 165 is arranged in the inside edge of vault formation portion with the angle with respect to the non-vault formation portion 173 of housing, and can also increase housing to the crooked tolerance in neck shape portion 161 places through increasing the crooked inertia of housing 115 at neck shape portion place like this.

The vault formation portion 165 of housing is not suitably for extending to very the relatively little structure away from opening 151.Vault formation portion 165 does not suitably extend to the top of the middle body 117 of housing 115.For example, the vault formation portion 165 of housing 115 suitably extends far unlike the approximate diameter of the section shape of annular construction member 141 from the edge of adjacent apertures 151.Therefore, the vault formation portion 165 of housing 115 does not increase the overall height of housing.Vault formation portion 165 has also added seldom or has not increased for the amount of making the required material of housing 115.

Vault forms housing section 165 can have different shape or structure within the scope of the utility model.Like Fig. 7-shown in Figure 10, for example, the vault formation portion 165 of housing has upper surface 177 (Figure 10), upper surface 177 housing 115 vertically on have convex curvature.In this embodiment, the vault formation portion 165 of housing 115 comprises the arch portion of the inside edge that is formed on corresponding opening 151.Arch portion has footing 179 at the opposite side of opening 151 and the opposite side of adjacent annular member 141 at its place, opposite end.The domeshape portion 165 that overarches has most advanced and sophisticatedly 181, and most advanced and sophisticated 181 axially align with adjacent annular member 141 on housing 115.And the domeshape portion 165 that overarches extends transverse to housing 115 and has crown 183, said crown 183 (Fig. 7-Fig. 8) of non-vault formation portion 173 that extends inward into housing from the tip 181 of the outer end of arch portion 165 transverse to thin-long casing 115.Form vault 171 that portion 165 forms by the vault of housing 115 and suitably form the short tunnel that extends towards the center line 153 of housing 115 from the inward flange of opening 151.As shown in Figure 9, Fig. 9 is the section of intercepting in the plane that comprises the line that extends along crown 183, and crown peak suitably is positioned at the overarch outer end of portion 165 of domeshape.And crown 183 can also be concordant or downward-sloping towards the outer end of vault formation portion 165 within the scope of the utility model, perhaps within the scope of the utility model, has other structure.

Suitable arch or other vault formation housing section 165 can form upset through the inside edge at opening 151 on housing 115 arch lip shape portion processes.The phrase that uses among this paper " upset " does not need characteristic in fact to extend upward.But to make that characteristic is not so good as the adjacent part 167 of housing 115 the same when downward-sloping apace when the characteristic bending, also is regarded as " upset " such as the characteristic of lip shape portion 165.And phrase " upset " is intended to describe the net shape of characteristic and without any need for specific manufacturing approach.With reference to Fig. 7 and Fig. 8, in this embodiment, the vault formation portion 165 of housing 115 can also be regarded as the characteristic that forms protruding block at the inside edge of opening 151 once more.Piece 165 is configured to extend to more than the segmentation of corresponding annular construction member 141 when being in the close position when ring.

Housing 115 also has at least one dimple 191 of in the middle body 117 of housing, locating along the longitudinal centre line 153 of housing.For example, illustrated embodiment comprises four such dimples 191, in Fig. 2, can find out.The purposes that it will be appreciated by those skilled in the art that these dimples 191 be form middle body 117 from housing 115 towards flap 131 to the firm domed formation that extends below.Similarly dimple is set to annulate shaft with at least some prior art ring mechanisms to aiming at.Through the impact that absorbs flap when firm relatively cheese mating surface snaps onto open position with convenient flap under the influence from the elastic force of housing is being set on the bottom side of housing; At ring 105 when moving on the open position, dimple 191 protection housings 115 are avoided the destruction of hard flap 131.Like Fig. 2 and shown in Figure 4, each dimple 191 is spaced apart along the opening 151 that is associated with neck shape portion in vertical and the neck shape portion 161 and the housing 115 of housing.Therefore, each dimple 191 vertically deviates from annular construction member 141 along housing 115.All dimples 191 all not on housing 115 with neck shape portion 161, opening 151 or annular construction member 141 in any axially align.Therefore, the cross section of the housing of intercepting (for example, Fig. 9) does not cut arbitrary part of arbitrary dimple 191 in the plane that comprises with the axially aligned line of ring.In addition, each in the neck shape portion 161 broken away from the dimple 191 that when ring 105 is opened, is impacted by flap 131 in fact.This protection housing 115 is avoided the impact of flap 131 and is made from the impulsive force of flap more firmly the partially absorbing away from one ridge by housing 115 at neck shape portion 161 places of relative thin.

Because housing is easy to the unexpected crooked infringement of hand most before flap 131 is assembled in the housing, by vault forms that housing section 165 forms to the additional resistance of housing 115 bendings advantageous particularly in the manufacturing of ring mechanism 101 and assembling process.Therefore, vault formation portion 165 can reduce in the manufacturing of ring mechanism 101 and assembling process protection housing 115 and avoids destroying required precautionary measures.Vault formation portion can also reduce and the relevant loss of yield of infringement that in manufacture process, all of a sudden is applied on the housing 115.With after flap 131 combines, hard relatively flap provides substantial reinforcing at housing 115, and this has reduced the vulnerability that housing receives unexpected crooked or other infringement significantly.However, after assembling was accomplished, ring mechanism 101 still had benefited from the additional strength in the housing 115.

Figure 11 illustrates second embodiment of ring mechanism.Except the annular construction member opening 251 of housing 215 (for example; All annular construction member openings, along the annular construction member opening or the only single annular construction member opening of a side) at least one comprise the material strips 293 of extending around the opposite side of annular construction member 141 so that outside housing extends around annular construction member fully;, this mechanism is identical with above-mentioned ring mechanism 101.Through being formed opening 251 and suitably processed bar 293 through the width of bar by the opening near the lateral edges of the sheet metal blank that is used to process housing, said sheet metal blank is from the width of the inside spacer bar in edge of blank.Therefore, when the sheet metal blank by die or when otherwise forming housing, the part between the lateral edges of opening and blank of blank becomes the material strips 293 at side 119 places of housing (for example, as the part of curved gasket ring 121) down.Housing 215 comprises one or more aforesaid vault formation portion 165.Additional material strips 293 makes housing more can resist bending than the housing that does not have this material strips.In assembling process, make the end of annular construction member 141 at first insert logical opening (for example, through manual mode or utilize) not to depend on the machine that side is inserted annular construction member the ability in the opening of opening through recess.In all others, mechanism's operation as preceding text are described to mechanism 101.

When the element of the preferred embodiment of introducing the utility model, article " ", " be somebody's turn to do " and " said " are intended to represent to exist one or more elements.Term " comprises ", " comprising " and " having " be intended to comprise and represent and except listed element, can have other element.

Aforementioned content in the consideration can be found out, has realized a plurality of purposes of the utility model and has obtained other beneficial effect.

Owing under the situation of the scope that does not depart from the utility model, can make various modification to above-mentioned structure, purpose is to be included in all the elements shown in above-mentioned specification and the accompanying drawing and should be interpreted as exemplary and be taken on the meaning of restriction and makes an explanation.

Claims

1. ring mechanism that is used to keep loose-leaf, said mechanism comprises:

Thin-long casing, said thin-long casing have middle body and the side of longitudinal extension on the opposite side of said middle body;

By first flap and second flap of said housings support to pivot and to move with respect to said housing; And

Ring; Said ring is used to keep said loose-leaf; Each said ring comprises first annular construction member and second annular construction member; Said first annular construction member is installed on said first flap and can moves between closing position and open position with respect to the pivoting action of said second annular construction member along with said first flap; Said first annular construction member and said second annular construction member form roughly continuous closed loop on said closing position, said first annular construction member and said second annular construction member form the discontinuous circle ring of opening on said open position

Wherein, Said housing has one the opening that is used for accepting said first annular construction member; Said opening laterally inwardly extends towards the longitudinal centre line of said thin-long casing; Said housing has vault formation portion at the inside edge of said opening, spaced apart and protruding separating more than vertical adjacent part of same distance with said centreline space to said housing of the said vault formation portion of said housing and the longitudinal centre line of said housing.

2. ring mechanism as claimed in claim 1, wherein, the said vault formation portion of said housing has upper surface, and said upper surface vertically has a convex curvature along said housing.

3. ring mechanism as claimed in claim 1, wherein, the said vault formation portion of said housing comprises arch portion.

4. ring mechanism as claimed in claim 3, wherein, said arch portion has footing at its place, opposite end, and said one the opposite side axial location of said footing in said first annular construction member is on said housing.

5. ring mechanism as claimed in claim 3, wherein, said arch portion has the tip, aims at the earth's axis to being positioned on the said housing for said one in said tip and said first annular construction member.

6. ring mechanism as claimed in claim 3, wherein, said arch portion has crown portion, and said crown is extended transverse to said thin-long casing.

7. ring mechanism as claimed in claim 3, wherein, said arch portion forms the tunnel, and said tunnel extends to the said housing towards the said center line of said housing from the said inward flange of said opening.

8. ring mechanism as claimed in claim 1, wherein, said vault formation portion's sizing of said housing and be shaped to said one segmentation of accepting in said first annular construction member.

9. ring mechanism as claimed in claim 8, wherein, when said ring is on the said closing position, in the vault that the part at least of said one segmentation in the said first annular construction member said vault portion of formation by said housing that received.

10. ring mechanism as claimed in claim 1, wherein, said thin-long casing is formed by sheet metal.

11. ring mechanism as claimed in claim 10, wherein, said housing is included in the rib-shaped piece of longitudinal extension in the said middle body of said housing.

12. ring mechanism as claimed in claim 1, wherein, the recess that said opening laterally inwardly extends for the side from said housing.

13. ring mechanism as claimed in claim 1; Wherein, Said opening is first opening; And the said vault formation portion of said housing is the first vault formation portion; The a plurality of additional vault formation portion that said housing has a plurality of additional opening that are used for other said annular construction member and is positioned at the inside edge of said additional opening, said additional vault form cage structure be make the part at least of said vault formation portion of said housing with the longitudinal centre line of said housing spaced apart and protruding to said housing and said centreline space at a distance from each of same distance more than vertical adjacent part.

14. the ring mechanism that combines with strip of paper used for sealing as claimed in claim 1, wherein, said ring mechanism is installed on the said strip of paper used for sealing, and said strip of paper used for sealing is suitable for optionally covering or exposing any loose-leaf that remains on the said ring.

15. a ring mechanism that is used to keep loose-leaf, said mechanism comprises:

Wherein, said housing has one the opening that is used for accepting said first annular construction member, and said opening is towards the longitudinal centre line horizontal expansion of said thin-long casing, and said housing has upset lip shape portion at the inside edge of said opening.

16. ring mechanism as claimed in claim 15, wherein, said upset lip shape portion forms arch portion.

17. ring mechanism as claimed in claim 16, wherein, each arch portion has footing at its place, opposite end, and said one the opposite side axial location of said footing in said first annular construction member is on said housing.

18. ring mechanism as claimed in claim 16, wherein, said arch portion has crown portion, said crown extend transverse to said thin-long casing and on said housing with said first annular construction member in said one axially align.

19. ring mechanism as claimed in claim 15, wherein, said opening is a recess that laterally inwardly extends from said side.

20. be used to keep the ring mechanism of loose-leaf, said mechanism comprises:

Wherein, Said housing has one the opening that is used for accepting said first annular construction member; Said opening is towards the longitudinal centre line horizontal expansion of said thin-long casing; Said housing has protruding block at the inside edge of said opening; Said block structure is for to extend to when said ring is on the said closing position more than said one segmentation in said first annular construction member; Said housing further comprises dimple, said dimple along the said longitudinal centre line location of said housing and towards said flap to extending below so that when said annular movement is to said open position, protect said housing to avoid the infringement of said flap, said dimple axially departs from said annular construction member on said housing.

21. ring mechanism as claimed in claim 20; Wherein, said housing break away from along the said longitudinal centre line location of said housing and on the said center line that is arranged in said housing with the said said flap of vertically aiming at of said first annular construction member to any dimple that extends below.

22. ring mechanism as claimed in claim 20, wherein, said opening is a recess that laterally inwardly extends from the said side of said housing.