WO2008022509A1

WO2008022509A1 - Lever clip mechanism

Info

Publication number: WO2008022509A1
Application number: PCT/CN2007/000718
Authority: WO
Inventors: Xitao Deng
Original assignee: Leco Stationery Manufacturing Company Limited
Priority date: 2006-08-15
Filing date: 2007-03-06
Publication date: 2008-02-28
Also published as: EP2052872A1; TW200836938A; AU2007288059A1; CN101125502A; AR061682A1

Abstract

A lever clip mechanism (100, 200) comprises a baseplate (101), two ring portions (103, 203) fixed on the baseplate (101), an arched section (105, 205) that is provided on the baseplate (101) movably and comprises another two ring portions (105a, 205a),an elastic element which is used to push the arched section (105, 205) away from the baseplate (101) by its elasticity,a protruding portion (109, 209) which protrudes from the baseplate (101),a lever mechanism (117, 217) which is provided on the protruding portion (109, 209) to contact with the arched section (105, 205) and is designed to make the arched section (105, 205) press against or move away from the baseplate (101) so as to close or open the lever clip mechanism (100, 200). The lever clip mechanism (100, 200) is closed by rotating the lever mechanism (117, 217) upwards and away from the baseplate (101), while the lever clip mechanism (100, 200) is opened by rotating the lever mechanism (117, 217) downwards and close to the baseplate (101).In the lever clip mechanism (100, 200) according to the invention,the lever mechanism (117, 217) is closer to the baseplate (101) when the lever clip mechanism (100, 200) is in its open state to allow papers easy to be added or removed.

Description

Lever clamp mechanism

The invention relates to a lever clamp mechanism. Background technique

The lever clamp mechanism is a stationery widely used to store sheets such as loose-leaf paper. The applicant's Chinese Patent No. 01124645.6 discloses a lever clamp mechanism comprising a substantially flat substrate; two ring portions spaced apart from each other and fixedly mounted at one end thereof to one longitudinal side of the substrate, two The ring portion extends substantially vertically upward from the substrate and is slightly curved at the other end thereof to form a bent portion; is spaced apart from each other and is movably mounted at one end thereof to the other two ring portions of the other longitudinal side portion of the substrate, The two loop portions extend generally vertically upward from the base plate and also form an additional bend at the other end thereof to cooperate with the curved portion at the other end of the two loop portions to form a closed loop when the lever clamp mechanism is closed, the other two The ring portions are integrally connected to each other at one end close to the substrate by a connecting portion such that the other two ring portions move together, the connecting portion forming a substantially U-shaped bent portion bent toward the center of the substrate at a middle portion thereof; Cutting the substrate and bending the cut portion upward to form a substantially upright projection at the center of the substrate; one side of the substrate is mounted adjacent to The other side of the cutting groove formed by the other longitudinal side of the plate elastically abuts against a spring piece on the lower side of the substantially U-shaped bent portion of the connecting portion, the spring piece is for pushing the connecting portion away The substrate plane, thereby causing the other two ring portions to move together away from the two ring portions that are fixedly mounted to open the lever clamp mechanism; and a lever rotatably mounted to the boss portion, the lever In which it is mounted to the convex The end on the top has a roller. By rotating the lever downwardly, the roller can be moved against the upward thrust of the spring piece in a direction away from the handle portion of the lever to a position where the connecting portion is pressed against the substrate, thereby driving the other two The loops are moved together to a position in contact with the two ring portions that are fixedly mounted to form a closed loop; by rotating the lever upwardly away from the substrate, the rollers can be moved in a direction toward the lever handle portion to release the connection a position in which the portion is pressed, thereby moving the connecting portion away from the substrate under the upward thrust of the spring piece, causing the other two ring portions to move together away from the two ring portions fixedly mounted to form an open ring, To open the lever clamp mechanism.

In this prior art lever clamp mechanism, the lever clamp mechanism is closed by pressing the rotary lever downward, and the lever clamp mechanism is opened by rotating the lever upward away from the substrate. In this case, when the lever clamp mechanism is opened, the lever is in an upwardly rising position, occupying a gap between the two opposite ring portions which are opened, thereby obstructing the access of the loose-leaf paper, which makes accessing the loose-leaf paper very inconvenient. .

Therefore, it is necessary to improve the prior art lever clamp mechanism. Summary of the invention

The present invention has been made in view of the problems of the prior art lever clamp mechanism described above. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a lever clamp mechanism which enables a lever to not occupy a gap between two open opposing ring portions when the lever clamp mechanism is opened, thereby facilitating the receipt of loose-leaf pages.

According to the present invention, there is provided a lever clamp mechanism, the lever clamp mechanism comprising: a flat substrate; Two mutually spaced apart and parallel ring portions fixedly mounted on the substrate, and a ring member movably mounted on the substrate, the ring members including two additional ring portions spaced apart from each other and parallel The two ring portions and the two other ring portions are respectively disposed opposite to each other such that the two ring portions respectively facing each other when the ring member moves may form a closed ring;

An elastic member attached to the substrate at one end and abutting against the ring member at the other end thereof for pushing the ring member away from the substrate by elastic force;

a raised portion that protrudes upward from the substrate;

a lever mechanism rotatably mounted to the boss for contact with the ring member for pressing the ring member against or away from the substrate to close or open the lever Clip mechanism

Wherein the lever mechanism is arranged to close the lever clamp mechanism by rotating upwardly away from the substrate and to open the lever clamp mechanism by rotating downward toward the substrate.

According to the lever clamp mechanism of the present invention, since the lever mechanism is disposed to close the lever clamp mechanism by rotating upward away from the substrate, the lever clamp mechanism is opened by rotating downward toward the substrate, and therefore, when the lever clamp mechanism is opened, the lever The mechanism is closer to the substrate and does not substantially occupy the gap between the two opposing ring portions that are open, making it very easy to access loose-leaf pages. DRAWINGS

1 is an exploded perspective view of a lever clamp mechanism according to a first embodiment of the present invention; FIG. 2 is a perspective view of a lever clamp mechanism in a closed state according to a first embodiment of the present invention; FIG. 3 is a lever according to a first embodiment of the present invention. a perspective view of the other side of the clip mechanism in a closed state; Figure 4 is a bottom perspective view of the lever clamp mechanism in a closed state according to the first embodiment of the present invention;

Figure 5 is a perspective view of the lever clamp mechanism in an open state according to the first embodiment of the present invention; Figure 6 is a perspective view of the other side of the lever clamp mechanism in an open state according to the first embodiment of the present invention;

Figure 7 is a bottom side elevational view of the lever clamp mechanism in an open state in accordance with a first embodiment of the present invention;

Figure 8A is a perspective view of a ring member of a lever clamp mechanism according to a first embodiment of the present invention; Figure 8B is a side view of a ring member of the lever clamp mechanism according to the first embodiment of the present invention; Figure 8C is a circle of Figure 8B Partial enlarged view;

Figure 9 is an exploded perspective view of the lever clamp mechanism according to the second embodiment of the present invention.

Figure 10 is a perspective view of the lever clamp mechanism in a closed state according to a second embodiment of the present invention;

Figure 11 is another perspective view of the lever clamp mechanism in a closed state according to a second embodiment of the present invention;

Figure 12 is a bottom side elevational view of the lever clamp mechanism in a closed state in accordance with a second embodiment of the present invention;

Figure 13 is a perspective view of the lever clamp mechanism in an open state according to a second embodiment of the present invention;

Figure 14 is another perspective view of the lever clamp mechanism in an open state according to a second embodiment of the present invention;

Figure 15 is a bottom side stand of the lever clamp mechanism in an open state according to a second embodiment of the present invention. Body diagram specific implementation

1-7 show a lever clamp mechanism 100 in accordance with a first embodiment of the present invention. The lever clamp mechanism 100 according to the first embodiment of the present invention includes a substantially flat substrate 101. Two mutually spaced and parallel ring portions 103 are fixedly mounted on one longitudinal side of the substrate 101. The two ring portions 103. extend substantially vertically upward from the substrate 101 and are slightly bent at their free ends to form a bend. unit. A ring member 105 is movably mounted on the other longitudinal side of the substrate 101. The ring member 105 includes two ring portions 105a spaced apart from each other and parallel, and a connecting portion 105b that integrally connects the two ring portions 105a. Each of the ring portions 105a is formed with a bent portion at its free end, respectively, so that the two ring portions 105a of the ring member 105 can cooperate with the corresponding opposing ring portions 103 fixedly mounted to the substrate 101 to form a closed loop. The two ring portions 105a of the ring member 105 are integrally connected to each other by the connecting portion 105b at the other end thereof close to the substrate. The connecting portion 105b is bent substantially horizontally toward the center of the substrate at the middle portion thereof to form a substantially U-shaped bent portion 105c, and the intermediate portion of the bent portion 105c is slightly protruded upward to form the protruding portion 105d. The ring portion 103 and the ring member 105 have a substantially circular or elliptical cross section, respectively, and are made of a suitable material such as steel. The ring member 105 is movably mounted to the substrate 101 by cutting or stamping at the both ends of the substrate mounting ring member 105, and the two rolled portions 107 which are formed by folding the substrate portion which is cut or stamped upward and outward.

The portion of the substrate that is cut or stamped is bent substantially upward from the substrate in the vicinity of the longitudinal side portion of the substrate mounting ring member 105, thereby forming a substantially upright projection 109 at the center portion of the substrate 101. On the substrate due to the upward bending of the convex portion 109 A slit 111 is formed in 101. An elongated groove 113 is also formed in the vicinity of the longitudinal side edge of the substrate mounting ring member 105, and the action of the elongated groove 113 will be described below. It is also possible to form one or more holes 115 in the substrate for fixing the lever clamp mechanism to the cover of a folder or a notebook or the like.

The lever clamp mechanism 100 according to the present invention further includes a lever 117. The lever 117 includes a lever body 117a, a lever head portion 117b which is bent obliquely downward from the lever body 117a, and a lever handle portion (operating end) 117c which is obliquely bent downward from the other end of the lever body 117a. The lever clamp mechanism 100 according to the present invention further includes a roller 119 which is preferably made of plastic. The roller 119 is attached to the free end of the lever head 117b via a pin 121.

In the assembled lever clamp mechanism 100, the two ring portions 103 are fixedly mounted on the longitudinal side of the substrate 101 by means of, for example, riveting, welding or other known connection. The ring member 105 movably fixes both ends of the connecting portion 105b of the ring member 105 by the two rolled portions 107, and causes the intermediate portion of the U-shaped bent portion 105c of each of the connecting portions 105b to be substantially located near the convex portion 109, thereby The ring member 105 is movably mounted to the other longitudinal side of the substrate 101 such that the two ring portions 105a of the ring member 105 are respectively aligned with the two ring portions 103 that are fixedly mounted. The lever 117 equipped with the stick 119 is rotatably mounted to the boss 109 at a joint portion 117d of the lever body 117a and the lever head 117b by a fixing member 123 such as a rivet, so that the stick 119 is substantially bendable at the ring member 105. The part 105c moves up. A substantially arcuately curved spring piece 125-end is inserted into the elongated slot 113 on the substrate 101 to be held on the substrate 101, the other end of which is placed under the curved portion 105c of the ring member 105 and resiliently abuts The curved portion 105c of the ring member 105 is for urging the curved portion 105c of the ring member 105 upward by the elastic force. Of course, the mounting position of the spring piece 125 is not limited to the position shown, as long as the spring piece 125 can It is sufficient to abut against the lower side of the curved portion 105c. Further, the shape of the spring piece 125 is not limited to the illustrated shape as long as the spring piece 125 can generate an upward thrust against the lower side of the curved portion 105c.

In the open state of the lever clamp mechanism shown in FIG. 5, by holding the lever handle portion 117c upwardly away from the substrate rotation lever 117, the lever head portion 117b can be rotated counterclockwise from the fixing member 123 from the state shown in FIG. 5, resulting in installation. The roller 119 on the lever head portion 117b is moved to the protruding portion 105d in the direction toward the lever handle portion 117c on the curved portion 105c of the ring member 105, and the connecting portion 105b is pressed against the substrate 101 against the upward thrust of the spring piece 125. Then, the two ring portions 105a of the ring member 105 are moved to a position in contact with the two opposite ring portions 103, as shown in Fig. 2, forming a closed loop to hold the loose-leaf paper. In contrast, in the closed state of the lever clamp mechanism shown in Fig. 2, the lever head portion 117b can be rotated about the fixing member 123 from the state shown in Fig. 2 by holding the lever handle portion 117c downwardly toward the substrate rotating lever 117. Rotating clockwise causes the roller 119 attached to the lever head portion 117b to move away from the projection portion 105d in a direction away from the lever handle portion 117c, thereby releasing the pressing of the connecting portion 105b, thereby causing the connecting portion 105b to be on the spring piece 125 The upward thrust is moved away from the substrate 101, and the two ring portions 105a of the ring member 105 are moved away from the two oppositely mounted ring portions 103 to form an open ring to open the lever clamp mechanism for accessing the loose-leaf paper.

In order to ensure proper closing and opening of the lever clamp mechanism, two blocking portions 127a and 127b are formed on the boss portion 109 for limiting the range in which the lever head portion 117b can be rotated when the lever lever mechanism is closed, and when the lever clamp mechanism is opened The range in which the lever head 117b can rotate. Preferably, the blocking portion 127b defines the lever head 117b at a position where the lever clamp mechanism is in the closed state.

In order to make the gap between the opposite ring portions of the open lever clamp mechanism as large as possible so that For accessing the loose-leaf paper, preferably, as shown in FIGS. 8A-8C, a concave portion 105e is formed on the side of the projection 105d on the curved portion 105c of the ring member 105 where the roller 119 is to be moved, for opening the lever clamp mechanism. The roller 119 is accommodated. In order to facilitate the processing, the concave portion 105e may be formed symmetrically on both sides of the protruding portion 105d.

Figures 9-15 illustrate a lever clamp mechanism 200 in accordance with a second embodiment of the present invention. The structure of the lever clamp mechanism 200 according to the second embodiment of the present invention is substantially similar to the lever clamp mechanism 100 according to the first embodiment of the present invention except that the lever shape is different. The same or similar components of the lever clamp mechanism 200 according to the second embodiment of the present invention to the lever clamp mechanism 100 of the first embodiment of the present invention are denoted by the same reference numerals plus 100, and the description of the same components is omitted.

In the lever clamp mechanism 200 according to the second embodiment of the present invention, the lever 217 includes a lever body 217a, a lever head portion 217b that is bent obliquely upward from the end of the lever body 217a, and an obliquely upwardly curved extension from the other end of the lever body 217a. Lever handle portion 217c. The roller 219 is attached to the joint portion 217d of the lever body 217a and the lever head 217b via the pin shaft 221. A lever 217 equipped with a stick 219 is rotatably attached to the boss 209 at a free end of the lever head 217b via a fixing member 223.

In the open state of the lever clamp mechanism shown in FIG. 13, by holding the lever handle portion 217c upwardly away from the substrate rotation lever 217, the lever head portion 217b can be rotated counterclockwise from the state shown in FIG. 13 around the fixing member 223, resulting in installation. The roller 219 to the lever head portion 217b is moved to the protruding portion 205d in the direction toward the lever handle portion 217c on the curved portion 205c of the ring member 205, and the connecting portion 205b is pressed against the substrate 201 against the upward thrust of the spring piece 225. Then, the two ring portions 205a of the ring member 205 are moved to a position in contact with the two opposite ring portions 203, as shown in Fig. 10, forming a closed loop to hold the loose-leaf paper. In contrast, in the figure When the lever clamp mechanism shown in FIG. 10 is closed, the lever head 217b can be rotated clockwise about the fixing member 223 from the state shown in FIG. 10 by holding the lever handle portion 217c downwardly toward the substrate rotating lever 217, resulting in installation. The roller 219 on the lever head 217b is moved away from the protrusion 205d in a direction away from the lever handle portion 217c, and the pressing of the connecting portion 205b is released, so that the connecting portion 205b is moved downward by the upward thrust of the spring piece 225. From the substrate 201, the two ring portions 205a of the entraining ring member 205 are moved away from the two oppositely mounted ring portions 203 to form an opening ring to open the lever clamp mechanism for accessing the loose-leaf paper.

According to the lever clamp mechanism of the present invention, since the lever is disposed to close the lever clamp mechanism by rotating upward away from the substrate, the lever clamp mechanism is opened by rotating downward toward the substrate, so that the lever is further opened when the lever clamp mechanism is opened Close to the substrate, it does not substantially occupy the gap between the two opposing ring portions that are open, making it very easy to access loose-leaf pages.

While the preferred embodiments of the present invention have been described in detail, the embodiments of the present invention modify. For example, a cam portion may be attached to the end of the lever instead of the roller. Further, it is also possible to provide the projections and the recesses at the opposite ends of the opposite loops to prevent the mating loops from being disengaged. These changes and modifications are intended to fall within the scope of the invention.

Claims

Rights request

1. A lever clamp mechanism, the lever clamp mechanism comprising:

Flat substrate

Two mutually spaced apart and parallel ring portions fixedly mounted on the substrate, and a ring member movably mounted on the substrate, the ring members including two additional ring portions spaced apart from each other and parallel The two ring portions and the two other ring portions are respectively disposed opposite to each other such that the two ring portions respectively facing each other when the ring member moves may form a closed ring;

a raised portion that protrudes upward from the substrate;

It is characterized in that the lever mechanism is arranged to close the lever clamp mechanism by rotating upwardly away from the substrate and to open the lever clamp mechanism by rotating downward toward the substrate.

2. The lever clamp mechanism according to claim 1, wherein the lever mechanism includes a lever, and an abutment portion mounted to the lever and engageable with the ring member, the lever clamp being closed In the mechanism, the abutting portion moves on the ring member in a direction toward the operating end of the lever mechanism, and when the lever mechanism is opened, the abutting portion is on the ring member along the operating end away from the mechanism Move in direction.

3. The lever clamp mechanism of claim 2, wherein the lever comprises a lever a lever body, a lever head extending obliquely downward from one end of the lever body, and a lever handle portion extending obliquely downward from the other end of the lever body.

4. The lever arch mechanism according to claim 3, wherein the lever is rotatably attached to the boss at a joint portion of the lever body and the lever head.

The lever clamp mechanism according to claim 3, wherein the abutting portion is attached to a free end of the lever head.

6. The lever clamp mechanism according to claim 3, wherein two blocking portions are formed on the convex portion for respectively restricting a rotation range of the lever head when the lever clamp mechanism is closed, And a range of rotation of the lever head when the lever clamp mechanism is opened.

7. The lever clamp mechanism according to claim 2, wherein the lever comprises a lever body, a lever head that is obliquely extended upward from one end of the lever body, and a curved upwardly extending from the other end of the lever body Lever handle part.

8. The lever arch mechanism of claim 7, wherein the lever is rotatably mounted to the boss at a free end of the lever head.

The lever clamp mechanism according to claim 7, wherein the abutting portion is attached to a joint portion of the lever body and the lever head.

The lever clamp mechanism according to claim 7, wherein two blocking portions are formed on the convex portion for respectively restricting a rotation range of the lever head when the lever clamp mechanism is closed, And a range of rotation of the lever head when the lever clamp mechanism is opened.

The lever mechanism according to claim 2, wherein the abutting portion is a cam portion.

The lever clamp mechanism according to claim 2, wherein said abutting portion is a roller Child.

The lever clamp mechanism according to claim 1, wherein the other two ring portions are integrally connected by a connecting portion, and the connecting portion includes a bent portion that is curved toward a center of the substrate.

The lever mechanism according to claim 13, wherein the intermediate portion of the curved portion protrudes upward to form a projection.

The lever mechanism according to claim 14, wherein a concave portion located on the curved portion is formed on at least one side of the protruding portion.

A lever clamp mechanism according to claim 1, wherein said elastic member is a negative film.

17. The lever clamp mechanism of claim 1 wherein said resilient member is a spring.

The lever clamp mechanism according to claim 1, wherein a free end of one of the two mutually opposite ring portions is provided with a convex portion or a concave portion in the two mutually opposite ring portions. A matching recess or projection is provided on the free end of the other ring portion.