CN2492390Y - device for holding stacks of paper in folders - Google Patents

Abstract

A device for retaining a stack of sheets having apertures at their edges in a file folder, the device comprising a base, at least two rings fixed to and extending upwardly from the base for engaging the apertures at the edges of the sheets, each ring comprising a movable first part and a second part, the rings being arranged to engage the apertures at the edges, a mechanism for retaining the first and second parts of each ring in their closed position in which the first and second parts of each ring are adjacent one another to form a closed loop, and for retaining the first and second parts of each ring in their open position in which the first and second parts of each ring are separated from one another to enable the addition of sheets to or removal of sheets from the rings, the mechanism comprising a lever having a handle end and an operating end, the operating end co-operating with a fulcrum of the mechanism to cause the first and second parts of each ring to move between the open and closed positions, the handle end surface of the lever is made of a material softer than metal, preferably plastic.

Description

device for holding stacks of paper in folders

technical field

The present invention relates to a device for holding a stack of papers in a folder, which has the form in which the papers are held by several rings which are opened and closed by a mechanism with one lever, for example for The lever arch mechanism of the lever arch folder.

Background technique

Lever hoop folders are known for holding stacks of paper in folders. It generally consists of a base, two rings secured to and projecting upwardly from the base for engaging holes in the edge of the stack of paper. Each ring consists of a columnar section to hold the pages when the folder is closed and an arched section. A mechanism is used to keep the above two parts in a closed state, and the rings form a closed ring at this time, and these rings hold the stack of papers and allow one or more papers on the top of the stack to turn over the rings, so that Can read the following pages. The mechanism can be operated by moving a lever to open the two halves of the ring so that sheets can be added to or removed from the ring. It is also possible to move the two halves of the ring back together into the closed state by manipulating a lever.

Due to the need for strength, the lever of the mechanism is made of metal, especially in the area on the lever that engages with the fulcrum of the mechanism for opening and closing operations, but for users who frequently use such file folders, such Metal parts can be uncomfortable. Furthermore, easily identifiable and easily removable color markings cannot be made on the mechanism without coloring the mechanism.

The invention proposes a way of making the opening and closing of the mechanism more comfortable for frequent users and marking the mechanism in colour, that is to say making it more noticeable.

new content

According to a first aspect of the present invention there is proposed a device for keeping a stack of papers in a folder with holes at the edges, the device comprising:

a base;

At least two rings, fixed to the base and projecting upwardly from the base, for engaging the upper edge apertures of the sheet, each ring consisting of a movable first part and a second part, the rings being set into holes adapted to engage on the edge;

a mechanism for retaining the first and second portions of each ring in their closed position in which the first and second portions of each ring approach each other to form a closed loop, and for retaining the The first and second parts are in their open position, in which the first and second parts of each ring are separated from each other so that sheets can be added to or removed from the rings, the mechanism includes a and a lever at an operating end which cooperates with the fulcrum of the mechanism to move the first and second portions of each ring between the open and closed positions, wherein the handle end surface of the lever is made of a material softer than metal, Preferably made of plastic.

The term "ring" as used herein has two meanings:

a) a member in which the first and second parts are each a half ring, and

b) a member in which first and second parts together form a complete ring, one of which is substantially straight (although there may be a bend along its length) and the other part has an arched top (so-called "lever arch folder").

However the specific shape of the ring does not affect the gist of the invention and it can be of any desired shape.

Preferably, as is known in so-called "lever arch folders", the first part of each ring is connected together and pivotally mounted on the base, while the lever operates the first part between open and closed positions action. The mechanism may have a spring which forces the first part of the ring into the open position when the lever is released, in which case the lever may drive the first part into the closed position against the force of the spring. Before the lever is released, the first part can be locked in the closed position by the lever, and when the lever is released, it is moved to the open position under the elastic force of the spring. The reverse is also possible, ie the spring will force the first part into the closed position and the lever will drive the first part into the open position against the force of the spring. However, such an arrangement is not optimal because the ring will only be held closed by the spring, which will allow the ring to be accidentally opened.

The handle end will be integrally made of soft material, or a sleeve of soft material that fits over a lever of other material. If the handle end of the lever is made of plastic or other colorable material, the handle end can be color marked by the user according to the contents of the folder. By the way, such coloring makes the mechanism more noticeable.

Description of drawings

Below by way of example, referring to corresponding accompanying drawings, three embodiments of the present invention are described, wherein:

Figure 1 is a perspective view of an embodiment of the novel device in a "closed" position, and in Figures 1A to 1D are detailed views of the levers forming part of said device;

Figure 2 shows the handle end of the lever of the device shown in Figure 1;

Figure 3 shows the lever without the handle end in the device shown in Figure 1;

Figure 4 is a perspective view of a second embodiment of the novel device in the "closed" state, and in Figures 4A to 4D a detailed view of the lever forming part of said device;

Figure 5 shows the handle end of the lever of the device shown in Figure 4;

Fig. 6 is an exploded view of the device shown in Fig. 4;

Figure 7 is a perspective view of a third embodiment of the novel device in the "closed" position, and in Figures 7A to 7D a detailed view of the lever forming part of said device;

Figure 8 shows the sleeves that form part of the lever handle end of the device shown in Figure 7;

FIG. 9 is an exploded view of the device shown in FIG. 7 .

Detailed ways

Referring first to Figures 1A and 6, there is shown a device for retaining a stack of paper in a folder. The device comprises a base 10 made of pressed steel sheet with holes 12 for receiving rivets (not shown in the figures) to fix the device to the folder. Protruding from the base 10 are two rings 14 each comprising a fixed post 16 and a movable arch 18 . The post 16 passes through a hole 19 (see FIG. 6 ) in the base 10 and is secured to the base 10 by forging the bottom end of the post to deform it.

Said arched parts 18 of the two rings 14 are connected together by an intermediate part 30 which is pivotably mounted to the base by means of two curved arched tabs 31 (see FIG. 6 ), said The tabs 31 are punched out of the base 10 . Such an arrangement enables the arched part 18 and the connecting part 30 to rotate about a horizontal axis 25 extending between the two tabs 31 .

The connecting part 30 has a crank part 32 . One end (34') of a leaf spring 34 is secured in a slot 36 in the base, the other end 34" of which engages the bottom surface of the crank member 32 and tends to force the crank member 32 upward so that the arched member 18 rotates about the horizontal axis. 25 Turn counterclockwise.

A generally vertical wall 40 is also stamped from the base 10 . A lever 42 is riveted to the wall 40 by a rivet 44 passing through a hole 46 in the wall 40 and a hole 48 in the lever 42 . So arranged, the rivet 44 enables the lever 42 to rotate about the wall 40 . The lever 42 carries a roller 50 attached thereto by a rivet 52 whose end fits in a hole 54 in the lever 42 . The roller engages the top of the crank member 32 to control the opening and closing of the arcuate member 18 of the ring 14, as will be described below.

The top of the post 16 has a raised shape 60 which mates with a corresponding recessed shape at the end 62 of the arched member 18 (see FIG. 6); There is a positive engagement and alignment between the posts 16 and arches 18 of each ring is facilitated whereby the sheets cannot be accidentally positioned in their attached position.

Lever 42 is movable about rivet 44 between a horizontal position (see FIG. 1 ) and an upwardly extending position (not shown). In the state shown in FIG. 1, the roller 50 presses the crank member 32 downward against the force of the spring 34, keeping the arched member 18 of each ring in a closed state against the corresponding post 16 to form a The closed loop shown in . When the roller 50 is fully moved to the lower position, it is moved past the dead center of the lever mechanism, thereby maintaining the lever in the closed position under the action of the spring 34 .

When lever 42 is moved upwards from the position shown in FIG. 1 , roller 50 no longer presses crank member 32 downward and allows crank member 32 to move upward under the action of spring 34, thereby causing arched member 18 to move counterclockwise about axis 25. Turning, the arcuate part 18 of the ring is separated from the post 16 . By pressing down on the lever 42, the roller 50 overcomes the action of the spring 34, causing the crank member 32 to move to the closed position shown in FIG.

A stack of paper (not shown) having holes in the edges can be threaded over the post 16 when the ring is in its "open" state. Once the stack of papers is threaded on post 16, lever 42 can be pressed down to the position shown in FIG. 1 to keep the stack of papers in loop 14. The upper sheets of the stack can be slid over the post 16 and retained in the arch 18 so that the lower sheets of the stack can be revealed for easy reading. The aforementioned lever arch folder is the traditional form.

The lever 42 has a metal operating end 45 with a roller 50 mounted on the wall 40 . The lever also has a handle end 47 which is manipulated by the user. The operating end 45 has a pin 49 adapted to be inserted into a slot 51 on the handle end 47, while the handle end is retained on the pin by friction or adhesive means. FIG. 1B is a perspective view of the lever 42 alone, and FIG. 1C is a perspective view of the two ends 45 , 47 of the lever separated. FIG. 1D is a side view of the lever 42, and FIG. 1E is a cross-sectional view along line e-e in FIG. 1D.

Figure 2 shows a perspective view (Figure 2A), a side view (Figure 2B), a top view (Figure 2C) and an end view (Figure 2D) of the handle end 47 of the lever.

Figure 3 shows a perspective view (Figure 3A), a side view (Figure 3B), and a top view (Figure 3C) of the handle end 47 of the lever.

The device shown in Fig. 4 has an overcoat 60 except that the handle end of the lever 42 is the same as that in Fig. 1, and the overcoat 60 is enclosed within an end 62 of the operating part 64 of the lever of the common lever arch ring. Figure 4B is a perspective view of lever 42 alone, and Figure 4C is a perspective view of the lever divided into two parts 60 and 62, 64, with 62, 64 labeled separately. FIG. 4D is a side view of the lever 42, and FIG. 4E is a cross-sectional view along line e-e in FIG. 4D.

Figure 5 shows a perspective view (Figure 5A), a side view (Figure 5B), a top view (Figure 5C) and an end view (Figure 5D) of the housing 60 of the lever.

Figure 6 is an exploded view of the device shown in Figures 4 and 5, showing the separate components of the device.

The device shown in FIG. 7 is the same as that of FIG. 1 except that the handle end of the lever 42 has a sleeve 70. The sleeve 70 is sleeved on an end 72 of a lever operating member 74 for the lever arch file. Figure 7B is a perspective view of lever 42 alone, and Figure 7C is a perspective view of the lever in two parts 70 and 72, 74, with 72, 74 labeled separately. FIG. 7D is a side view of the lever 42, and FIG. 7E is a cross-sectional view along line e-e in FIG. 7D.

FIG. 8 shows a perspective view ( FIG. 8A ), a side view ( FIG. 8B ), a top view ( FIG. 8C ) and an end view ( FIG. 8D ) of the sleeve 70 of the lever 42 .

Figure 9 is an exploded view of the device shown in Figures 7 and 8 showing the separate components of the device.

Claims (6)

1. device that is used for the quires that the edge has some holes is remained on file, this device comprises:

A pedestal; At least two rings, they are fixed on the pedestal and from pedestal and protrude upward, and are used to mesh the edge hole on the page, and each ring is made up of a movable first and a second portion, and these rings are configured to be suitable for being engaged on the hole on the page edge; A mechanism, be used to keep first and second parts of each ring in its closing position, in the close mutually annular that forms a closure of first and second parts of this each ring of position, and be used to keep first and second parts of each ring at its open position, first and second parts at this each ring of position are separated from each other, so that can in ring, add some pages or some pages are taken out, this mechanism comprises a lever with proficiency pommel and an operating side, the fulcrum acting in conjunction of described operating side and this mechanism, first and second parts of each ring are moved between the open and close position, wherein, the handle end surface of lever is by the material than metallic flexible, and preferably plastics are made.

2. device as claimed in claim 1, wherein the first of each ring is joined together and is installed pivotally, and lever can force the first of ring to enter closing position, and wherein said mechanism comprises that a first that forces described ring when lever is decontroled enters the spring of open position.

3. device as claimed in claim 2, wherein the first of each ring is locked in closing position before lever is decontroled.

4. as any described device in the claim 1 to 3, wherein handle end is by flexible material moulding integrally.

5. as any described device in the claim 1 to 3, wherein handle end is shaped to a sleeve pipe that is enclosed within on the lever.

6. as any described device in the claim 1 to 3, wherein the handle end of lever is made by plastics or other colorable material, and described handle end is colored.

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