WO2003066346A1 - Paper holding device - Google Patents

Paper holding device Download PDF

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Publication number
WO2003066346A1
WO2003066346A1 PCT/CN2002/000067 CN0200067W WO03066346A1 WO 2003066346 A1 WO2003066346 A1 WO 2003066346A1 CN 0200067 W CN0200067 W CN 0200067W WO 03066346 A1 WO03066346 A1 WO 03066346A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
mechanism
papers
device
stack
handle
Prior art date
Application number
PCT/CN2002/000067
Other languages
French (fr)
Inventor
Chunyuen To
Hoping Cheng
Original Assignee
Leco Stationery Manufacturing Company Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42FSHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
    • B42F9/00Filing appliances with devices clamping file edges; Covers with clamping backs

Abstract

A device for holding together a stack of papers comprises: a mechanism for releasably holding a stack of paper, wherein the mechanism is movable between an open position in which papers can be added to or removed from the mechanism and a closed position in which papers are held in a stack by the mechanism, and a manually operable handle made substantially from metal for moving the mechanism between the open and the closed positions, wherein the mechanism for releasably holding the stack of papers does not hold the papers on a closed loop and wherein at least the part of the manually operable handle that is engaged by the user to move the mechanism between the open and the closed positions has a plastic surface to prevent direct contact between the user and the metal when operating the mechanism.

Description

Paper Holding Device

Technical Field The present invention relates to a device for retaining a stack of papers.

Background Art

Devices for maintaining stacks of paper in an orderly fashion are well known. For example, there may be mentioned files including a mechanism for holding a stack of paper within the files for example by clamping the stack at its margins, a clipboard in which a stack of paper is clamped by a spring-biased arm against either a base plate of the mechanism or a rigid or semi rigid base of the clipboard, or indeed an ordinary fold-back spring paper clip. In addition, there may be mentioned devices for holding papers in a stack by threading them on a post by means of holes formed in the margins of the paper.

Such mechanisms are generally made of metal to provide the necessary strength for the mechanism to hold the stack of paper. However, this requires the mechanism to be operated by engaging a metal surface, which has several disadvantages. Firstly, it is uncomfortable for frequent users of such mechanisms. The metal surfaces are frequently nickel/chromium plated to provide corrosion resistance to the mechanism. However, the contact with such metal surfaces can give rise to allergic reactions.

The present invention provides a way of making the opening and closing of a mechanism more comfortable to the frequent user and also avoids the problem of allergic reactions by contact with the metal surface.

Summary of the Invention

According to the present invention there is provided a device for holding together a suck of papers, which device comprises: a mechanism for releasably holding a stack of papers, wherein the mechanism is movable between an open position in which papers can be added to or removed from the mechanism and a closed position in which papers are held in a stack by the mechanism, and a manually operable handle made substantially from metal for moving the mechanism between the open and the closed positions, wherein the mechanism for releasably holding the a stack of papers does not hold the papers on a closed loop and wherein at least the part of the manually operable handle that is engaged by the user to move the mechanism between the open and the closed positions has a plastic surface to prevent direct contact between the user and the metal, thereby minimising the risk of allergic reactions from contact with the metal and additional comfort in operating the device. The plastic surface may be a surface of a pad, an encapsulating body of plastic or a sleeve or a plastic portion of the handle. The plastic may be foamed to provide a cushioned surface.

Description of Drawings

Figure 1 is a perspective view of a device according to the present invention; Figure 2 is an exploded view of the components of the device of Figure 1 ; Figure 3 are bottom, side, plan and end views of the device of Figure 1; Figure 4 is a perspective view of a stack of paper retained in the device of Figure 1;

Figures 5 and 6 correspond to Figures 1 and 3 but show a modified embodiment; Figures 7 and 8 correspond to Figures 1 and 3 but show a further modified embodiment; Figure 9 is a perspective view of a device according to the present invention; Figure 10 is an exploded view of the device of Figure 9 showing the various components of the device;

Figure 11 shows the device of Figure 9 in front view, top view and side view; Figure 12 is a perspective view showing the device of Figure 9 holding a stack of papers; Figures 13 and 14 correspond to Figures 9 and 10 but show an alternative embodiment; Figure 15 shows a top and side view of the device of Figure 13; Figure 16 shows the device of Figure 13 in use holding a stack of papers;

Figure 17 shows top and bottom perspective views of a device according to the present invention;

Figure 18 is an exploded view of the device of Figure 17 showing the components; Figure 19 is a sectional view and a front view of the device of Figure 17; Figure 20 is a perspective view showing the device of Figure 17 in use;

Figures 21 and 22, Figures 24-26, Figures 27-30, Figures 31-34 and Figures 3 5-3 8 show modified embodiments of the devices shown in Figures 17 and 19;

Figure 39 is a perspective view of a device according to the present invention; Figure 40 is an exploded view of the device of Figure 39 showing its component parts; Figure 41 shows bottom, side, top and end views of the device of Figure 39;

Figure 42 is a perspective view of the device of Figure 39 in operation; Figure 43 is a perspective view (including a detail) of a device according to the present invention;

Figure 44 is an exploded view of the device of Figure 43; Figure 45 shows front, top and side views of the device of Figure 43 together with a detailed top view of part of the device;

Figure 46 shows the device of Figure 43 in use holding a stack of paper; Figure 47 is a perspective view of a device according to the present invention; Figure 48 is an exploded view of the device of Figure 47 showing its component parts; Figure 49 shows end, side and bottom views of the device of Figure 47; and Figure 50 shows the device of Figure 47 in use holding a stack of paper; Figures 51a and 51b show other views of the device shown in Figure 7; Figures 52a and 52b show another embodiment of the device for retaining in a file a stack of papers that have holes in their margins.

Description of Preferred Embodiments

Referring initially to Figure 1, there is shown a device for holding a stack of paper that includes a base 10, a side wall 12, four uprights 14 pressed out of base and a clamping arm 16.

The clamping arm 16 is connected by way of cracked arms 18; one end of each crank arm extends through the clamping arm 16 and the other end extends through respective uprights 14b and 14d and through the side wall 12.

A lever 22 is pivotally mounted on the side wall 12 by means of a pin 24 (see Figure 2) which passes through a hole in the lever 22 and through a corresponding hole in the side wall 12. Also mounted on the pin 24 is a coil spring 20, one arm 20a of which engages under the lever 22 and the other arm 20b of which engages in a hole (not shown) in the clamping arm 16. When the lever is in the position shown in Figure 1 , the coil spring 20 is tensioned and urges the clamping arm 16 downwardly. However, when the lever 22 is released, the tension in the spring 20 is also released and the clamping arm 16 can be moved upwardly about crank arms 18 to remove or add papers to a stack located between the clamping arm 16 and the base 10. Such a stack of papers is shown in Figure 4.

The lever 22 includes a projection (not shown) which engages in a slot 30 (see Figure 2) to maintain the lever in the position shown in Figure 1. However, because the lever 22 is made of sheet metal, it can be flexed laterally in the direction shown by arrow A in Figure 1 to release the projection from the slot 30 and so allow the lever to be move upwards to relieve the tension in the Spring.

The components of the device shown in Figures 1 to 4 are made of nickel chromium plated steel, The end 12 of the lever carries a pad 34 made of plastic material, preferably of sponge or resilient plastic material, to add comfort to the mechanism and to prevent direct contact between the user and the metal, which could give rise to allergic reactions.

Figures 5 and 6 show a mechanism that is the same as that described in connection with Figures 1 to 4 except, instead of a pad 34, the whole of the end of lever 22 that is engaged by the user is encapsulated in plastic material. Figures 1 and 8 are similar to Figures 6 and 7 but show the whole of the end 32 of lever 22 that is engaged by the user is made of a plastic panel.

Figures 9 to 12 show a clipboard having a base 36 pivotally connected by a rod 38 to a clamping arm 40. A pair of springs 42 bias the base 36 and the clamping arm 40 together to clamp between them sheets of paper (see Figure 12). The base 36 is secured to a rigid or semi rigid base or board 42 (see Figure 12) to form the clipboard. A handle 44 is integrally formed with the clamping arm 40 to open the clamping arm 40 to allow papers to be added or taken away from the clipboard. The part 46 of the handle 44 that is engaged by the user is formed by a plastic pad 46.

The arrangement of Figures 13 to 16 is similar to that of Figures 9 to 12 except that the handle 44 is formed on the front of the mechanism rather than at the rear, as is the case in Figure 9; a further difference is that the clamping arm 40 clamps papers between it and the base 3 6 rather than between it and the board 42, which is the case in Figures 9 to 12.

The handle in Figure 13 has a plastic tag 46 overlying and encapsulating a metal leaf 45 (see Figure 14).

Figures 21 and 22 show a further clipboard device including a base 50 having holes 51 for securing to a board, such as board 42 shown in Figure 12, by means of rivets or screws (not shown). A clamping arm 52 is pivotally attached to base 50 by means of a rod 54. The clamping arm 52 is biased downwardly (as seen in Figure 21(a)) by a spring 56 (see Figure 21). The clamping arm can be lifted upwards by pressing on a handle 57 to add or take away papers from the clipboard. The rim of handle 57 is formed by a plastic pad 58 to prevent the user coming into contact with the metal of handle 57. The arrangement of Figures 23 to 26 is similar to that described in connection with Figures 21 and 22 but with slight modifications that are evident from the drawings.

A further alternative to the mechanism shown in Figures 21 and 22 is shown in Figures 27 to 30, in which the whole of the end of handle 57 is covered by a plastic material 58. Figures 31 to 34 correspond to Figures 27 to 30 but with the slightly modified design, which is evident from the drawings.

Figures 35 to 38 show a further variant of the arrangement of Figures 21 and 22 except that the pad 58 only covers part of the upper surface of the handle 57. Referring now to Figures 39 to 42, there is shown a further clipboard mechanism 60 secured to a rigid or semi rigid board 62 (see Figures 42). The mechanism 60 includes a base 63 that can be secured to the board 62 by rivets or screws (not shown) passing through holes 64 in the base.

A clamping arm 65 is biased towards the base 63 by springs 66 held within a cover 67 formed by a turned over section of the base 63. A stack of papers can be clamped between the lever arm 65 and the base 63 (see Figure 42). However, papers can be added or withdrawn from the stack by moving the clamping arm 65 upwards (as viewed in Figure 39) and this is achieved by pulling upwards on a handle formed by a raised central section 68 of the clamping arm 65. The raised handle section 68 is covered by a plastic sleeve 69.

Figures 43 to 46 show a device 70 for securing a stack of papers 71 on a board 72 or within a file (see Figures 46a).

The mechanism 70 includes a base 73 provided with three upright posts 74 that engage holes in the margins of the paper of the stack 71 (see Figure 46). An 'L' sectioned wall 75 is pivotally connected to the base. 73 by a hinge mechanism 76; a coil spring 77 biases the L- sectioned wall 75 away from the base 73, as shown by arrow B in Figure 43a. A series of three cut outs 78 are provided in the lip of wall 75 and a slide 79 is held on the upper face of wall 75 by means of digits 80. The slide 79 can be slid longitudinally along the wall 75 in the direction of arrow C, as will be further described below. A handle 81 is formed by an upright projection 82 at the end of slide 79 to move the slide backwards and forwards; the projection 82 is encapsulated by a plastic cover 83 (see Figure 43b). The movement of slide 79 is limited by the engagement of a projection 83 within a slot 84 (sea Figure 44).

Referring now to Figure 45(b), which is a top view of the mechanism 70 shown in figure 43, it can be seen that the slide 79 includes three bayonet slots 84 that engage the tops of posts 74 when the slide 79 is at the extreme left hand extent of its range (as shown in Figure 45(b)). However, the slide 79 can be moved to the right by pushing handle 81 (see expanded view in Figure 45(b)) so that the open ends of bayonet slots 84 are brought into register with the posts. The wall 75, which is spring biased by spring 77 in the direction of arrow B (Figure 43), is no longer held by the posts74 and so moves in the direction of Arrow B; the posts 74 are then unobstructed and papers may be freely added to or removed from the posts74.

The device 70 can be refastened again to keep papers on the posts 74 by pushing wall 75 in the direction opposite arrow B so that the posts 74 pass through openings 78 and engage bayonet slots 84, The handle 81 can then be pushed to the right to the position shown in Figure 45(b) to capture the posts in the bayonet slots 84 and hold the wall 75 in place.

Figures 47 to 50 show a simple fold-back clip of well known design which comprises a wedge shaped leaf spring 90 having bent over edge sections 91 to accommodate the ends of U- shaped arms 92.

In order to open the leaf spring 90, the arms 92, which are covered with a plastic sleeve 93, are pushed together in the direction of arrow D, thereby opening the mouth 94 of the spring 90 to add or remove papers, When the arms are released, the spring 90 closes the mouth 94 to clamp the pages held between the spring 90 (see Figure 50).

The use of the sleeve 93 greatly enhances the comfort of use of the fold-back clip.

All the mechanisms described above are opened and closed by pushing on one part of the mechanism. According to the present invention, that part is formed or covered by a plastic surface, which can be the surface of a foamed plastic body to increase the comfort of use. The rest of the devices described above are generally made of metal and in particular of nickel/chromium plated steel, The use of the plastic surface described above prevents direct contact between the devices described above and the user, thereby reducing the possibility of an allergic reaction through contact with metal; such allergic reactions have been reported in connection with nickel.

Figure 51a and 51b show other views of the device shown in Figure 7, wherein Figure 51a shows an exploded view of the device, and the plastic pad 5101 is not connected to the handle of the lever 5102. The Figure 51b shows a perspective view, a plan view and a sectional view of the device. As shown in the Figures, the lever has a projection and a side wall 5103 of the base 5104 of the device has a hole corresponding to the projection so that when the lever is pressed to the closed position, the projection will be fit into the hole, and thus the lever can be held in the closed position.

Figures 52a and 52b show another embodiment of the device for retaining in a file a stack of papers that have holes in their margins, wherein the Figure 52a is a perspective view of the device, and the Figure 52b is an exploded view of the device. The device comprises: a base 5204; two rings secured to and extending upwardly from the base for engaging the marginal holes in the papers. Each ring is composed of a moveable first section 5205 and a second section 5206. There is a mechanism for keeping the first and second sections of each ring in either a closed position in which thee first and second sections of each ring abut each other (Fig. 52a) and form a closed loop and an open position in which the first and second sections of each ring are spaced apart from each other to allow papers to be added to, or removed from, the rings. The mechanism comprises a lever 5201 having a handle end 5202 and an operating end. The operating end cooperating with the rest of the mechanism for moving the first and second sections of each ring between the open and the closed positions. A spring 5207 is positioned on the base to bias the connecting portion of the two movable first sections 5205 upward, and the lever 5201 is pivotably mounted on the base for pressing the connecting portion in closed position. When the handle portion 5202 is pressed down, the two movable first sections 5205 are moved to contact the two sections to form two closed loops as shown in the Fig. 52a. When the handle portion 5202 is lifted, the two movable first sections 5205 are urged by the spring 5207 to move to open the closed loop so as to allow papers to be added to, or removed from the rings.

Claims

Claims
1. A device for holding together a stack of papers, which device comprises: a mechanism for releasably holding a stack of paper, wherein the mechanism is movable between an open position in which papers can be added to or removed from the mechanism and a closed position in which papers are held in a stack by the mechanism, and a manually operable handle made substantially from metal for moving the mechanism between the open and the closed positions, wherein the mechanism for releasably holding the stack of papers does not hold the papers on a closed loop and wherein at least the part of the manually operable handle that is engaged by the user to move the mechanism between the open and the closed positions has a plastic surface to prevent direct contact between the user and the metal when operating the mechanism.
2. A device as claimed in claim 1, wherein the said mechanism clamps the papers to hold them in the stack.
3. A device as claimed in claim 2, wherein the said mechanism comprises a base and an arm that are resiliency biased together to clamp papers between them.
4. A device as claimed in claim 3, wherein the handle is directly connected to the mechanism arm to open and close the arm.
5. A device as claimed in claim 3, wherein the mechanism comprises a spring and wherein handle is connected to selectively tension the spring, the arrangement being such that when the handle tensions the spring, the arm and the base are resiliency biased together.
6. A device as claimed in any one of claims 3 to 5 wherein the base comprises a board for supporting the stack of papers.
PCT/CN2002/000067 2002-02-06 2002-02-06 Paper holding device WO2003066346A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2002/000067 WO2003066346A1 (en) 2002-02-06 2002-02-06 Paper holding device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/CN2002/000067 WO2003066346A1 (en) 2002-02-06 2002-02-06 Paper holding device
CN 02802441 CN100358732C (en) 2002-02-06 2002-02-06 Paper holding device

Publications (1)

Publication Number Publication Date
WO2003066346A1 true true WO2003066346A1 (en) 2003-08-14

Family

ID=27672017

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2002/000067 WO2003066346A1 (en) 2002-02-06 2002-02-06 Paper holding device

Country Status (2)

Country Link
CN (1) CN100358732C (en)
WO (1) WO2003066346A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013185573A1 (en) * 2012-06-11 2013-12-19 东莞市黄江新原文具厂 Folder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007068165A1 (en) * 2005-12-12 2007-06-21 Leco Stationery Manufacturing Company Limited A lever file
CN102673223B (en) * 2012-06-13 2014-05-28 东莞市新原文具有限公司 Rubber rod clamp

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05270188A (en) * 1992-03-25 1993-10-19 Tatsuo Nishida Clip
US5621955A (en) * 1992-12-11 1997-04-22 Schmid; Dieter Clamp made of plastic for clamping sheet-like objects

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05270188A (en) * 1992-03-25 1993-10-19 Tatsuo Nishida Clip
US5621955A (en) * 1992-12-11 1997-04-22 Schmid; Dieter Clamp made of plastic for clamping sheet-like objects

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013185573A1 (en) * 2012-06-11 2013-12-19 东莞市黄江新原文具厂 Folder

Also Published As

Publication number Publication date Type
CN100358732C (en) 2008-01-02 grant
CN1482969A (en) 2004-03-17 application

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