CN102083634B

CN102083634B - Paper-retaining mechanism

Info

Publication number: CN102083634B
Application number: CN200980126302.0A
Authority: CN
Inventors: 郑洪如
Original assignee: World Wide Stationery Manufacturing Co Ltd
Current assignee: World Wide Stationery Manufacturing Co Ltd
Priority date: 2009-02-13
Filing date: 2009-02-13
Publication date: 2013-04-17
Anticipated expiration: 2029-02-13
Also published as: WO2010091552A1; TW201029858A; CN102083634A

Abstract

A paper-retaining mechanism (100, 200, 300, 400) comprises a base (104, 204, 304, 404), at least two post members (102, 202) secured to said base, a pair of arch members (106, 206) joined with each other for simultaneous movement, wherein the arch members are movable relative to the post members between a closed position in which the arch members are in contact with the post members to form two closed rings and an open position in which the arch members are out of contact with the post members to open the rings; and a lever assembly operable to move the arch members between the closed position and the open position. The lever assembly includes a lever member (124, 224, 324, 424), a clutch assembly (120, 122; 220 222) and a rotatable member (118, 218, 318, 418). The lever member has a slot (152, 252, 352, 452). The clutch assembly is engaged with the lever member by engagement means (150, 154; 250, 254) at least partly received through the slot of said lever member. The engagement means is slidably movable within and relative to the slot during operation of the lever assembly.

Description

Paper-retaining mechanism

Technical field

The present invention relates to paper-retaining mechanism and the paper-retaining device that comprises this paper-retaining mechanism.

Background technology

Have now and to get multiple paper-retaining mechanism.In a kind of traditional paper-retaining mechanism that usually is called lever-arch file folder mechanism, a single-arm lever can pivot, thereby a pair of arch is pivoted with respect to fixing column, thereby allow the perforation paper to be removed or to insert described binder mechanism from described binder mechanism, thereby thereby and this single-arm lever can pivot and make column and arch sealing form a pair of closed-loop paper is remained on wherein.This engages by the crank between them arch, and in the pivot motion course of lever, the roller that joins on the lever moves at this crank, thereby so that this ring is opened or is closed.In the operation of this traditional file clamp mechanism, the ring that makes to be become with arch by column is to sealing thereby lever pivots downwards, thereby thereby lever upwards pivots and allows spring leaf will encircle pivot to leave column and open ring.

The problem relevant with this traditional paper-retaining mechanism be, when lever was located thereon, the distance of lever and arch was very approaching, sometimes even with arch contacts.This means that perforated paper is merely able to insert column or takes out from column, rather than insert arch or take out from arch.This makes the use of mechanism very inconvenient.On the other hand, if the gradient between the base that lever is made as and column is fixed is less, just there be not enough moving pivotally that arch is opened.

Summary of the invention

The purpose of this invention is to provide a kind of paper-retaining device that can alleviate the paper-retaining mechanism of above-mentioned shortcoming and comprise this paper-retaining mechanism, for example file or clipboard perhaps provide a kind of useful replacement scheme to the public at least.

According to a first aspect of the invention, a kind of paper-retaining mechanism is provided, this paper-retaining mechanism comprises base, at least two post members that are fixed on the described base, thereby interconnect paired arch spare and the lever assembly of simultaneously motion, wherein said arch spare can be mobile between closing position and open position with respect to described post member, in described closing position, thereby described arch spare is in contact with one another with described post member and forms two closed-loops, at described open position, thereby described arch spare is separated from each other with described post member and opens described ring, this lever assembly operationally makes described arch spare mobile between described closing position and described open position, and wherein said lever assembly comprises lever piece, clutch pack and rotatable; It is characterized in that, described lever piece has groove, clutch pack engages with described lever piece by the joining tool at least part of described groove that passes and be contained in described lever piece, in the operating process of described lever assembly, described joining tool can be mobile slidably with respect to described groove in described groove.

According to a second aspect of the invention, a kind of paper-retaining device is provided, this paper-retaining device comprises the substrate that engages with paper-retaining mechanism, described paper-retaining mechanism comprises base, be fixed at least two post members on the described base, thereby interconnect paired arch spare and the lever assembly of simultaneously motion, wherein said arch spare can be mobile between closing position and open position with respect to described post member, in described closing position, thereby described arch spare is in contact with one another with described post member and forms two closed-loops, at described open position, thereby described arch spare is separated from each other with described post member and opens described ring, lever assembly operationally makes described arch spare mobile between described closing position and described open position, and wherein said lever assembly comprises lever piece, clutch pack and rotatable; It is characterized in that, described lever piece has groove, clutch pack engages with described lever piece by at least part of joining tool that passes the described groove of described lever piece, and in the operating process of described lever assembly, described joining tool can be mobile slidably with respect to described groove in described groove.

Description of drawings

The below only describes embodiments of the present invention by way of example and with reference to the accompanying drawings, in the accompanying drawings:

Fig. 1 is the decomposition view according to the lever-arch file folder mechanism of first embodiment of the invention;

Fig. 2 is that the mechanism of Fig. 1 is at the front perspective view of ring closure state;

Fig. 3 is that the mechanism of Fig. 2 is positioned at the next front perspective view in ring open mode and lever;

Fig. 4 is that the mechanism of Fig. 2 is positioned at upper front perspective view in ring open mode and lever;

Fig. 5 is that the mechanism of Fig. 2 is positioned at the next front perspective view at ring closure state and lever;

Fig. 6 is the front perspective view of the mechanism of Fig. 5;

Fig. 7 is the rear view of the mechanism of Fig. 6;

Fig. 8 is the rearview of the mechanism of Fig. 6;

Fig. 9 is the side view of the mechanism of Fig. 8;

Figure 10 is the front view of the mechanism of Fig. 8;

Figure 11 is the top view of the mechanism of Figure 10;

Figure 12 is the right side view of the mechanism of Figure 10;

Figure 13 is the left side view of the mechanism of Figure 10;

Figure 14 is the decomposition view according to the lever-arch file folder mechanism of second embodiment of the invention;

Figure 15 is that the mechanism of Figure 14 is at the front perspective view of ring closure state;

Figure 16 is that the mechanism of Figure 15 is positioned at the next front perspective view in ring open mode and lever;

Figure 17 is that the mechanism of Figure 15 is positioned at upper front perspective view in ring open mode and lever;

Figure 18 is that the mechanism of Figure 15 is positioned at the next front perspective view at ring closure state and lever;

Figure 19 is that the mechanism of Figure 15 is at the front perspective view of ring closure state;

Figure 20 is the rear view of the mechanism of Figure 19;

Figure 21 is the front view of the mechanism of Figure 19;

Figure 22 is the top view of the mechanism of Figure 21;

Figure 23 is the right side view of the mechanism of Figure 21;

Figure 24 is the left side view of the mechanism of Figure 21;

Figure 25 is the rearview of the mechanism of Figure 21;

Figure 26 is the left side view of the mechanism of Figure 25;

Figure 27 is that the mechanism of Figure 15 is at the front perspective view of ring open mode;

Figure 28 is the rear view of the mechanism of Figure 27;

Figure 29 is the front view of the mechanism of Figure 27;

Figure 30 is the top view of the mechanism of Figure 29;

Figure 31 is the right side view of the mechanism of Figure 29;

Figure 32 is the left side view of the mechanism of Figure 29;

Figure 33 is the front view of the ratchet wheel (claw wheel) of the clutch pack of mechanism shown in Figure 14;

Figure 34 is the side view of the ratchet wheel of Figure 33;

Figure 35 is the top view of the ratchet wheel of Figure 33;

Figure 36 is the rear view of the ratchet wheel of Figure 33;

Figure 37 is the front view with example sizes and angle of the lever of mechanism shown in Figure 14;

Figure 38 is the left side view of the lever of Figure 37;

Figure 39 is the top view of the lever of Figure 37;

Figure 40 is the perspective view of the lever of Figure 37;

Figure 41 is the decomposition view according to the lever-arch file folder mechanism of third embodiment of the invention;

Figure 42 is that the mechanism of Figure 41 is at the front view of ring closure state;

Figure 43 is the top view of the mechanism of Figure 42;

Figure 44 is the right side view of the mechanism of Figure 42;

Figure 45 is the left side view of the mechanism of Figure 42;

Figure 46 is the front perspective view of the mechanism of Figure 42;

Figure 47 is the rear view of the mechanism of Figure 46;

Figure 48 is the rearview of the mechanism of Figure 42;

Figure 49 is the left side view of the mechanism of Figure 48;

Figure 50 is that the mechanism of Figure 41 is at the front view of ring open mode;

Figure 51 is the top view of the mechanism of Figure 50;

Figure 52 is the left side view of the mechanism of Figure 50;

Figure 53 is the front perspective view of the mechanism of Figure 50;

Figure 54 is the rear view of the mechanism of Figure 50;

Figure 55 is the decomposition view of the lever-arch file folder mechanism of four embodiment of the invention;

Figure 56 is that the mechanism of Figure 55 is at the front view of ring closure state;

Figure 57 is the top view of the mechanism of Figure 56;

Figure 58 is the right side view of the mechanism of Figure 56;

Figure 59 is the left side view of the mechanism of Figure 56;

Figure 60 is the front perspective view of the mechanism of Figure 56;

Figure 61 is the rear view of the mechanism of Figure 56;

Figure 62 is the rearview of the mechanism of Figure 56;

Figure 63 is the left side view of the mechanism of Figure 62;

Figure 64 is that the mechanism of Figure 56 is at the front view of ring open mode;

Figure 65 is the left side view of the mechanism of Figure 64;

Figure 66 is the front perspective view of the mechanism of Figure 64; With

Figure 67 is the rear view of the mechanism of Figure 66.

The specific embodiment

Fig. 1 shows the multiple parts of the lever-arch file folder mechanism that consists of the first embodiment of the present invention, and this mechanism is labeled as 100 usually.

Two columns 102 are fixedly installed on the base 104, so column substantially vertically extends from base 104.Two arches 106 form and interconnect by knee 108, thus encircle 106 and bar 108 can move simultaneously.Arch 106 is by engaging with base with integrally formed two anchor clamps 110 of base 104.By this arrangement, arch 106 can pivot between primary importance (" ring closing position ") and the second place (" ring open position ") with respect to base 104 and column 102, in described primary importance, arch 106 free end 106a contacts with the free end 102a of column 102 and keeps matching relationship, thereby form two closed hoops that are used for keeping the perforation paper, in the described second place, the free end 106a of arch 106 and the free end 102a of column 102 are separated from each other, thereby open ring to allow the perforation paper can insert column 102 or encircle 106, perhaps from column 102 or encircle 106 and take out.Spring leaf 111 engages with base 104.Spring leaf 111 acts on the knee 108 from the below, and will encircle 106 towards ring open position bias voltage.

The plate 112 integrally formed with base 104 extends upward from base 104.Plate 112 comprises that be used to the hole 114 that holds the first rivet 116 this first rivet 116 is used for joining plastic wheel 118, metal ratchet wheel 120, perforated plate 122 and lever 124 to plate 112.Wheel 118 has the protuberance 118a that four isogonisms arrange, and has recess 118b between these four protuberance 118a.Thereby also accommodating the second rivet 126 in hole 114 joins spring 128 on the plate 112 to.

More specifically, the first rivet 116 passes and is contained in the curved groove 136 of the hole 134 of center through hole 132, perforated plate 122 of wheel 118 center through hole 130, ratchet wheel 120 and lever 124.This layout allows wheel 118, ratchet wheel 120 and perforated plate 122 to rotate with respect to plate 112 around the common longitudinal axis A-A that fix with respect to base 104.

Plate 112 has the hole 138 adjacent with base 104, and lever 124 has hole 139.Align mutually in these two holes 138,139, thereby thereby rivet 140 and ring 142 pass and are contained in above-mentioned two holes and lever 124 to be joined to plate 112 motion that is pivoted relative to each other.By this layout, lever 124 can be around pivoting with respect to plate 112 with respect to base 104 fixing common longitudinal axis C-C.A vertical terminal 124b of lever 124 is covered by lid 124a, and this lid can be made by flexible material (for example rubber), is used in use providing more comforts.

First vertical terminal 128a of spring 128 engages with the turn of bilge 144 of lever 124, second vertical terminal 128b and plate 112 fixed engagement of spring 128.By this layout, the vertical terminal 124b of lever 124 by spring 128 away from base 104 ground bias voltages.

Perforated plate 122 has a plurality of essentially rectangular holes 146 along its circumferential edge and is positioned at the circular hole 148 of the slightly ledge of plate 122.Rivet 150 passes and is contained in the groove 152 of lever 124, is used for engaging with the hole 148 of ring 154 and plate 122.By this layout, the hole 148 of plate 122 can be mobile simultaneously with rivet 150.The width of groove 152 allows rivet 150 mobile therein, and therefore rivet can be moved with respect to lever 124.Lever 124 also has along the plate of the edge placement of groove 152 (platelet) 156.The function of plate 156 will be discussed below.

With reference now to Fig. 2 to Fig. 5,, this has shown the operation cycle of mechanism 100.As the beginning step, this has shown the mechanism 100 of ring closure state with Fig. 2, and lever 124 is positioned at, and it is stable upper.Then the user can press lever 124 downwards (such as the arrow G indication among Fig. 2) to position shown in Figure 3.Thereby this can make wheel 118 rotate in the same direction 45 ° of recess 118b that arrive wheel 118 directly towards the position of knee 108.In this position, thereby spring leaf 111 can upwards pivot and arch 106 pivoted leave column 102, therefore to open ring.

When the downward pressure of release action on lever 124, the biasing force that make progress of lever 124 by spring 128 terminal 128a turns back to that it is stable upper.In the motion process that lever 124 upwards returns, because clutch pack (clutch assembly) (hereinafter further discussing), wheel 118 will keep static, as shown in Figure 4.If the user is downward presses lever 124 again next, thereby the motion that lever 124 pivots downwards will cause taking turns 118 rotates 45 ° of arrival in the same direction with upper/lower positions, force knee 108 to overcome the biasing force that makes progress of spring leaf 111 and turn back to that it is the next at the protuberance 118a of this position wheel 118, as shown in Figure 5.When the downward pressure of release action on lever 124, it is stable upper to it that lever 124 can return (under the effect of the upwards biasing force of spring 128), keeps static and take turns 118, as shown in Figure 2.

Turn back to Fig. 1, ratchet wheel 120 have four towards wheel 118 extend and with the wheel 118 pawl 120a that engage, when lever assembly was assembled in a suitable manner, ratchet wheel 120 rotated simultaneously with wheel 118.Ratchet wheel 120 has other four elastic claw 120b that extend towards perforated plate 122.Each of these elastic claws 120b is contained in respectively in each hole 146 of plate 122.The shape in pawl 120b and hole 146 so that, at lever 124 downwards in the processes of pivoting action, thereby hole 146 engages simultaneously motion with pawl 120b, so makes and take turns 118 at identical direction rotation.On the other hand, in lever 124 made progress pivot motion course, hole 146 slips over (slip over) pawl 120b(because the elasticity of pawl 120b and the shape in hole 146), thus make ratchet wheel 120 and wheel 118 keep static.Therefore ratchet wheel 120 and perforated plate 122 are as clutch pack.

The key character of mechanism 100 is that groove 152,136 is set in lever 124.In mechanism 100, in order to ensure lever 124 its stable upper can not extend with arch 106 too in approaching, lever 124 tilts about 20 ° with respect to base 104.Thereby this means lever 124 can pivot downwards finish ring closed/maximum angle of ring opening action is about 20 °., as mentioned above, wheel 118 must rotate 45 ° at every turn.Therefore, need to be greater than two angular magnification.

In mechanism 100, can see when lever 124 when the axis C-C of proximate base 104 pivots, ratchet wheel 120, perforated plate 122 and plastic wheel 118 can rotate around axis A-A, axis A-A apart from the distance of base 104 greater than the distance of axis C-C apart from base.For lever 124 can be pivoted around axis C-C, rivet 116,126 passes and is contained in the curved groove 136 of lever 124, therefore allows lever 124 with respect to rivet 116,126 revolutions.

In addition, because the hole 148 of perforated plate 122 engages with groove 152 by rivet 150 and ring 154, when lever 124 pivots downwards 20 ° the time, the plate 156 of groove 152 will drive the hole 148 of perforated plate 122 and then drive perforated plate 122 and rotate 45 ° around axis A-A in identical direction.In this motion process, rivet 150 along the length of groove 152 with respect to lever 124 from upper down sliding to the next.In the return movement that lever 124 makes progress, with drive perforated plate 122 with lever 124 return the identical direction rotation of pivoting action., as mentioned above, because the structure in the hole 146 of the structure of the pawl 120b of ratchet wheel 120 and perforated plate 122, therefore ratchet wheel 120(also has plastic wheel 118) static in the middle maintenance that rotatablely moves of returning of perforated plate 122.

Fig. 6 to Figure 13 has shown the multiple view of mechanism 100 in the ring closing position, and wherein lever 124 is positioned at its depressed position (lower depressed position).In Fig. 6 and Figure 10, take turns 118 with the dotted line demonstration, thereby manifest the more details of the internal structure of mechanism 100.

Structure by aforesaid mechanism 100 and Fig. 1 be to reason shown in Figure 13, and when mechanism 100 is positioned at the ring open mode, and lever 124 is positioned in this position that it is stable when upper, and lever 124 can be too not near apart from arch 106.Therefore the paper of boring a hole not only can take out or insert the column 102 from column 102, can also take out or insert the arch 106, therefore so that the use of mechanism 100 is convenient from encircleing 106.

Mechanism 100 can be secured to substrate (plate of for example being made by the combination of plastics, cardboard, metal or these materials or the capping of box type file) by for example screw or rivet, thereby forms paper-retaining device, for example clipboard or document case.

Formation according to the parts of the paper-retaining mechanism of second embodiment of the invention as shown in figure 14, wherein, this device is labeled as 200 usually.

Mechanism 200 has substantially and is fixedly connected on this base 204 for 204, two columns 202 of base on plane.Two arches 206 by between knee 208 interconnect, form as one by 208, two of this knees arch 206.Therefore arch 206 and bar 208 can move simultaneously.Arch 206 two anchor clamps 210(by base 204 have only shown one of them in Figure 14) thus engage between ring closing position and ring open position mobile, in described ring closing position, the free terminal 206a of arch 206 contacts with the free terminal 202a of column 202 and mates, thereby form two closed hoops, be used for keeping the perforation paper, at described ring open position, the free terminal 206a of arch 206 and the free terminal 202a of column 202 are separated, therefore open ring, thereby allow as required from column 202 or encircle to take out perforation paper or the paper of will bore a hole insertion column 202 206 or encircle 206.

One side of spring leaf 211 is fixed on the base 204.The second-phase of spring leaf 211 is tossed about and is acted on the bar 208 from the below, is biased into the ring open position thereby will encircle 206.

Mechanism 200 comprises lever assembly, and this lever assembly operationally makes arch 206 mobile between ring closing position and ring open position.Basically, lever assembly comprises lever 224, perforated metal 222, metal ratchet wheel 220 and plastic wheel 218.Ratchet wheel 220 and perforated metal 222 make up to form clutch pack, and this will further introduce below.Lid 224a(can by soft material for example rubber make) be used for to cover the vertical terminal 224b of lever 224, thereby more comfortable sensation in use is provided.

The plate 212 integrally formed with base 204 extends upward from base 204.Plate 212 has be used to the hole 214 that holds rivet 216, and this rivet is used for take turns 218, ratchet wheel 220 and perforated plate 222 engage with plate 212, rotates in order to wind the common axis line D-D that fix with respect to base 204.

Rivet 240 passes and is contained in the hole 238(proximate base 204 of plate 212) and the hole 239 of lever 224 in, pivot with respect to base 204 and plate 212 so lever 224 can wind with respect to base 204 fixing axis F-F.Spring 228 engages with rivet 226 in the hole 236 of passing and be contained in lever 224.Upper vertical terminal 228a of spring 228 engages with the turn of bilge 244 of lever 224, and lower vertical terminal 228b of spring 228 and base 204 fixed engagement are so when assembling in a suitable manner, spring 228 makes the vertical terminal 224b bias voltage of lever 224 leave base 204.

Second vertical end of lever 224 has groove 252, and rivet 250 and ring 254 pass and are contained in this groove 252, and this groove is used for and the hole of the summary protuberance of perforated plate 222 248 engages.The width of groove 252 allows rivet 250 in the slides within of groove 252, thereby slides with respect to perforated plate 222.

In Figure 14 as seen, ratchet wheel 220 has four towards the pawl 220a of wheel 218, each pawl 220a is contained in respectively among each thin-wall hole 218c of wheel 218, so when ratchet wheel 220 was assembled in a suitable manner with wheel 218, ratchet wheel 220 and wheel 218 can rotate simultaneously around axis D-D.Ratchet wheel 220 also has four jut 220b that extend towards perforated plate 222, and each jut 220b is contained in along in each hole 246 that the periphery of plate 222 distributes.Among four jut 220b each is separately positioned on the end of each elastic leg 260 of ratchet wheel 220, and jut 220b has the inclined surface (such as Figure 33 to shown in Figure 36) of curve.

More clearly show such as Figure 33 to Figure 36, because the shape of the jut 220b of ratchet wheel 220, when mechanism 200 assembles in a suitable manner, thereby the rotation of perforated plate 222 on direction shown in the arrow G can cause ratchet wheel 220(to take turns 218) correspondingly rotate simultaneously in identical direction.On the other hand, when perforated plate 222 when rotating with the direction of the indicated opposite direction of arrow G because the elasticity of leg 260 and the shape of jut 220b, plate 222 can slip over jut 220b, so ratchet wheel 220 and wheel 218 will keep static.

Figure 15 to Figure 18 has shown the operation cycle of mechanism 200.In Figure 15, mechanism 200 is shown as ring closure state and lever 224 and is positioned at that it is stable upper.In this state, one among the protuberance 218a of four isogonism settings of wheel 218 acts on the bar 208, overcomes the biasing force that makes progress of spring 211, remains on the ring closing position so that encircle 206.When lever 224 is pressed downward the pivot (as shown in figure 16), so that the indicated direction of perforated plate 222 arrow G in Figure 14 is rotated, therefore make ratchet wheel 220 and wheel 218 also rotate 45 ° in identical direction simultaneously.

Therefore when wheel 218 rotates after 45 °, one among four groove 218b of wheel 218 directly towards bar 208, thereby therefore allowing spring leaf 211 upwards to pivot arch 206 is pivoted leaves column 202, thereby ring is opened, as shown in figure 16.

During downward earth pressure release on acting on lever 224, lever 224 returns under the partial pressure that spring 228 makes progress that it is stable upper.In the return movement process that this makes progress, lever 224 can cause perforated plate 222 rotating with the direction of the indicated opposite direction of arrow G.As mentioned above, because the shape of the jut 220b of ratchet wheel 220, therefore ratchet wheel 220(takes turns 218 in addition) can when rotating with the direction of the indicated opposite direction of arrow G, keep static at perforated plate 222.Therefore mechanism 200 presents ring open mode shown in Figure 17, and lever 224 returns that it is stable upper in this state.

When the user when this is pressed into position shown in Figure 180 downwards with lever 224, meeting so that perforated plate 222 rotate in the direction shown in the arrow G of Figure 14, therefore make ratchet wheel 220 on this identical direction, rotate simultaneously 45 ° with wheel 218, thereby another jut 218a is acted on the knee 208 and make arch 206 overcome the biasing force that spring leaf 211 makes progress and be pivoted to the ring closure state, as shown in figure 18.

During downward earth pressure release on acting on lever 224, spring 228 pivots lever 224 to return it stable upper.In the pivot motion course of returning of lever 224, lever 224 can cause perforated plate 222 rotating with the direction of the indicated opposite direction of arrow G.Because the shape of the jut 220b of ratchet wheel 220, perforated plate 222 with the direction of the indicated opposite direction of arrow G in the rotary course, therefore ratchet wheel 220(takes turns 218 in addition) will keep static.Therefore mechanism 200 presents ring closure state as shown in figure 15, and lever 224 returns that it is stable upper in this ring closure state.

Forward now Figure 37 to Figure 40 to, shown in the particular implementation of the present invention a plurality of views with the lever 224 of exemplary dimensions and angle in the accompanying drawing.Figure 37 shows that lever 224 is in its stable upper direction, the plane parallel of its center line H-H and base 204 when mechanism 200 assembles in a suitable manner.Can see that in operating process, lever 224 at most can only be around the axis F-F(that passes hole 239 as shown in figure 14) downwards pivot rotate about 20 ° (more specifically being 19.9 °)., as mentioned above, each downward pivot motion of lever 224 must cause taking turns 45 ° of 218 rotations.This angle enlargement effect realizes by the layout between lever 224 and the perforated plate 222.

Particularly, can see that lever 224 has groove 252, this groove 252 has two plates 256, and each plate 256 is arranged along the straight flange of groove 252 respectively.As shown in figure 37, assemble in a suitable manner and it is stable when upper when lever 224 is positioned at when mechanism 200, the longitudinal axes L-L of groove 252 is 29.5 ° with respect to the angle of base 204.Find that in test this angle can be preferably between 29 ° to 30 ° between 25 ° to 35 °, is most preferably 29.5 °.

As mentioned above, rivet 250 and ring 254 engage with the hole 248 of perforated plate 222 by groove 252, thereby rivet 250 and ring 254 can be slided with respect to groove 252 in groove 252.Such action can cause plate 222 to rotatablely move accordingly.

To shown in Figure 32, it is stable when upper when lever 224 is positioned at such as Figure 19, and rivet 250 and ring 254 are positioned at lower vertical end of the groove 252 of lever 224.When lever 224 (such as the indicated direction of the arrow G among Figure 21) when axis F-F pivots downwards, groove 252 is pivot (judging according to Figure 21) upwards, and the lateral edges of groove 252 and plate 256 can acting in conjunction force rivet 250 and ring 254, thereby also force perforated plate 222 to rotate in identical direction around axis D-D.Therefore the hole 248 of rivet 250, ring 254 and perforated plate 222 rotates to higher position from the next.Because moving pivotally about 20 °, the direction of groove 252, lever 224 can make rivet 250, ring 254 and perforated plate 222 45 ° of identical direction rotations downwards.

When the downward pressing force on acting on lever 224 discharges, lever 224 returns under the effect of the biasing force that spring 228 makes progress that it is stable upper, therefore groove 252 can rotate (judging according to Figure 21) by downward pivot, and the lateral edges of groove 252 and plate 256 can acting in conjunction force rivet 250 and ring 254, thereby also force perforated plate 222 rotating with the direction of the indicated opposite direction of arrow G around axis D-D, therefore cause perforated plate 222 to return as shown in figure 21 position, for next step operation is prepared.Again, because clutch pack, so that ratchet wheel 220 and wheel 218 still keep static returning of lever 224 in the pivot motion course.

Similar with the situation of above-mentioned mechanism 100, mechanism 200 also can be fixed in the substrate (plate of for example being made by the combination of plastics, cardboard, metal or these materials or the cover plate of box type file) by for example screw or rivet, thereby formation paper-retaining device, for example clipboard or box type file.

Figure 41 to Figure 54 shows that wherein this mechanism is labeled as 300 usually according to the multiple view of the paper-retaining mechanism of third embodiment of the invention.

The structure that can see the structure of mechanism 300 and said mechanism 200 is closely similar, and main difference is that the plastic wheel 318 of mechanism 300 has projection 318a and three groove 318b between this projection that three isogonisms arrange.This means lever 324 from it each pivoting action of position (such as Figure 42 to shown in Figure 49) to its next (shown in Figure 50 to Figure 53) can make wheel 318 rotate 60 °.In this embodiment, lever 324 moves 26.3 ° in each this pivoting action.Thereby this allows the anglec of rotation of lever 324 to amplify about 2.3 times of anglecs of rotation that obtain wheel 318.In order to realize the amplification of this grade, be designed to when lever 324 when position thereon, the angle between the axis M-M of the groove 352 of lever 324 and the base 304 of mechanism 300 can between 35 ° and 60 °, be preferably between 38 ° and 55 °.In this particular implementation, this angle is 40 °.

Figure 55 to Figure 67 has shown the multiple view of the paper-retaining mechanism of four embodiment of the invention, and wherein mechanism is often referred to and is shown 400.

The structure that can see the structure of mechanism 400 and said mechanism 300 is closely similar.Mechanism 400 also has plastic wheel 418, the jut that this plastic wheel 418 arranges with three isogonisms, and three groove 418b between this jut.A main distinction between mechanism 400 and the said mechanism 300 is, in the pivoting action of each between the position (shown in Figure 56 to Figure 63) and the next (shown in Figure 64 to Figure 67), the angle that lever 424 moves all is 22.9 ° to lever 424 thereon., all must cause taking turns 418 and rotatablely move 60 ° in the next each downward pivot motion to it in the position from it at lever 424, amplification stage is approximately 2.62.In order to realize the amplification of this grade, be designed to when lever 424 position when (position that is biased into) thereon, the axis P-P of the groove 452 of lever 424 and the angle between the base 404 between 30 ° and 60 °, for example 53.5 °.

Mechanism 300,400 can be fixed in the substrate (plate of for example being made by the combination of plastics, cardboard, metal or these materials or the cover plate of box type file) by for example screw or rivet, thereby formation paper-retaining device, for example clipboard or box type file.

Be understandable that, more than only introduced the embodiment that the present invention can realize, not breaking away under the spiritual prerequisite of the present invention, multiple modification and/or replacement can be applied in above-described embodiment.

Will also be appreciated that for the sake of clarity describing some feature of the present invention in the context of independent embodiment can merge in the embodiment.On the contrary, the various features of the present invention of describing in the context of an embodiment for succinct purpose also can arrange separately or arrange in any suitable inferior mode that makes up.

Claims

1. a paper-retaining mechanism (100,200,300,400), this mechanism comprises:

Base (104,204,304,404);

At least two post members (102,202) that are fixed on the described base;

Thereby interconnect the simultaneously paired arch spare (106 of motion, 206), wherein said arch spare can be mobile between closing position and open position with respect to described post member, in described closing position, thereby described arch spare is in contact with one another the ring that forms two sealings with described post member, at described open position, thereby being separated from each other with described post member, described arch spare opens described ring; With

The lever assembly that described arch spare is moved between described closing position and described open position;

Wherein said lever assembly comprises lever piece (124,224,324,424), clutch pack (120,122; 220,222) and rotatable (118,218,318,418);

It is characterized in that described lever piece has groove (152,252,352,452), described clutch pack is by the joining tool (150,154 at least part of described groove that passes and be contained in described lever piece; 250,254) engage with described lever piece, in the operating process of described lever assembly, described joining tool can be mobile slidably with respect to described groove in described groove.

2. mechanism according to claim 1 is characterized in that, described lever piece can pivot around first axle (C-C, F-F) with respect to described base, and described clutch pack can turn round around the second axis (A-A, D-D) with respect to described base.

3. mechanism according to claim 2 is characterized in that, described rotatable can be rotated around described the second axis with respect to described base.

4. mechanism according to claim 1 is characterized in that, described clutch pack comprises the first member (120,220) and second component (122,222).

5. mechanism according to claim 4 is characterized in that, thereby the first member of described clutch pack engages simultaneously motion with described rotatable.

6. mechanism according to claim 4 is characterized in that, the described second component of described clutch pack comprises a plurality of openings (146,246).

7. mechanism according to claim 6 is characterized in that, described first member of described clutch pack comprises a plurality of juts (120b, 220b) that extend towards the described second component of described clutch pack.

8. mechanism according to claim 7 is characterized in that, each described jut of described first member of described clutch pack is contained in respectively in each opening of described second component of described clutch pack at least in part.

9. mechanism according to claim 4, it is characterized in that, described lever piece can be with respect to described base around first axle (C-C, F-F) pivot, described clutch pack can be with respect to described base around the second axis (A-A, D-D) pivot, the described second component of described clutch pack causes described first member of described clutch pack along doing corresponding rotation on the described first direction along first direction (G) around the rotation of described the second axis, and when the described second component of described clutch pack along the second direction opposite with described first direction in the process of described the second axis rotation, described first member of described clutch pack keeps static.

10. mechanism according to claim 2, it is characterized in that, thereby described lever piece can the nextly move to described open position with described arch spare from described closing position from upper being pivoted to around described first axle, thereby described lever piece can describedly the nextly make described arch spare move to described closing position from described open position from described upper being pivoted to around described first axle, and when described lever piece be positioned at described when the next the distance of described lever piece and described base less than be positioned at the described distance of described lever piece and described base when upper when described lever piece.

11. mechanism according to claim 10 is characterized in that, when described lever piece around described first axle from described upper be pivoted to described when the next, the part (248) that engages with described joining tool of described clutch pack from the next move to upper.

12. mechanism according to claim 10 is characterized in that, when described lever piece around described first axle from described upper be pivoted to described when the next, the part (248) that engages with described joining tool of described clutch pack from upper move to the next.

13. mechanism according to claim 10 is characterized in that, described lever piece is by towards described upper bias voltage.

14. mechanism according to claim 13 is characterized in that, when described lever piece is positioned at describedly when upper, the longitudinal axis of described groove (L-L, M-M, P-P) tilts 25 ° to 60 ° with respect to described base.

15. mechanism according to claim 14 is characterized in that, when described lever piece is positioned at describedly when upper, the described longitudinal axis of described groove tilts 29 ° to 55 ° with respect to described base.

16. mechanism according to claim 15 is characterized in that, when described lever piece is positioned at describedly when upper, the described longitudinal axis of described groove tilts 29.5 °, 40 ° or 53.5 ° with respect to described base.

17. a paper-retaining device, this device comprise the substrate that engages with paper-retaining mechanism according to claim 1 (100,200,300,400).