EP2052872A1 - Lever clip mechanism - Google Patents
Lever clip mechanism Download PDFInfo
- Publication number
- EP2052872A1 EP2052872A1 EP07720338A EP07720338A EP2052872A1 EP 2052872 A1 EP2052872 A1 EP 2052872A1 EP 07720338 A EP07720338 A EP 07720338A EP 07720338 A EP07720338 A EP 07720338A EP 2052872 A1 EP2052872 A1 EP 2052872A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- substrate
- arch mechanism
- ring assembly
- ring members
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
- B42F13/00—Filing appliances with means for engaging perforations or slots
- B42F13/16—Filing appliances with means for engaging perforations or slots with claws or rings
- B42F13/20—Filing appliances with means for engaging perforations or slots with claws or rings pivotable about an axis or axes parallel to binding edges
- B42F13/22—Filing appliances with means for engaging perforations or slots with claws or rings pivotable about an axis or axes parallel to binding edges in two sections engaging each other when closed
- B42F13/24—Filing appliances with means for engaging perforations or slots with claws or rings pivotable about an axis or axes parallel to binding edges in two sections engaging each other when closed wherein one section is in the form of fixed rods
Definitions
- This invention relates to a lever arch mechanism.
- a lever arch mechanism is stationery widely used for retaining pages such as loose-leaf pages.
- Chinese Patent No. 01124645.6 owned by the present applicant disclosed a lever arch mechanism comprising a substantially flat substrate; two first ring members separated from each other and having an end fixedly attached onto one longitudinal side of the substrate, the first ring members extending generally vertically upwards from the substrate and bent slightly at their other end to form a bending portion; two second ring members separated from each other and having an end movably attached onto the other longitudinal side of the substrate, the second ring members extending generally vertically upwards from the substrate and bent slightly at the other end to form the other bending portion, thereby forming a closed loop by engagement with the bending portion on the other end of two first ring members when the lever arch mechanism is closed, two second ring members connected integrally with each other at their ends near the substrate by a connecting portion to allow two second ring members move together, the connecting portion having a generally U-shaped bending portion bent at its middle portion towards the center of the substrate; a generally
- the roller By pressing and rotating the lever downward, the roller may resist against the upward pushing force of the leaf spring and move along a direction away from the lever handle to a position where the connecting portion presses against the substrate, thereby moving two second ring members together to a position where two second ring members contact with two first ring members that are attached fixedly to form a close loop respectively.
- the roller By rotating the lever upward and away from the substrate, the roller may move along a direction towards the lever handle to a position where it is possible to release the pressing against the connecting portion, so that the connecting portion may move away from the substrate under the action of the upward pushing force of the leaf spring, thereby moving two second ring members together and away from two first ring members to form an opened loop respectively.
- the lever arch mechanism is opened.
- the lever arch mechanism may be closed by pressing and rotating the lever downward, and the lever arch mechanism may be opened by rotating the lever upward and away from the substrate.
- the lever arch mechanism when the lever arch mechanism is opened, the lever is at an upward-raised position and occupies a gap between two ring members facing to each other, thereby interfering with accessing loose-leaf pages and resulting in much inconvenience for accessing loose-leaf pages.
- the present invention is proposed in consideration of the conventional lever arch mechanism.
- one object of the invention is to provide a lever arch mechanism in which the lever does not occupy the gap between two ring members facing to each other when the lever arch mechanism is opened, thereby facilitating accessing loose-leaf pages.
- a lever arch mechanism comprising:
- the lever mechanism since the lever mechanism is arranged to close the lever arch mechanism by rotating the lever mechanism upwards and away from the substrate, and to open the lever arch mechanism by rotating the lever mechanism downwards and toward the substrate, the lever mechanism is more close to the substrate when the lever arch mechanism is opened, thereby substantially not occupying the gap between two ring members facing to each other and being very convenient for accessing the loose-leaf pages.
- Figs.1 to 7 show a lever arch mechanism 100 according to a first embodiment of the invention.
- the lever arch mechanism 100 according to the invention comprises a generally flat substrate 101.
- Two first ring members 103 that are separated from and parallel with each other are attached fixedly onto a longitudinal side of the substrate 101.
- Two first ring members 103 substantially extend vertically upwards from the substrate 101 and are bent slightly at their free ends to form a bending portion respectively.
- a ring assembly 105 is attached movably onto the other longitudinal side of the substrate 101.
- the ring assembly 105 comprises two second ring members 105a that are separated from and parallel with each other and a connecting portion 105b for connecting integrally two second ring members 105a.
- Each of two second ring members 105a has a bending portion formed on its free end respectively to allow two second ring members 105a of the ring assembly 105 to engage with the corresponding one of two first ring members 103 that are attached fixedly onto the substrate 101 to form a closed loop.
- Two second ring members 105a of the ring assembly 105 are connected integrally with each other at their other ends near the substrate 101 by the connecting portion 105b.
- the connecting portion 105b has a generally U-shaped bending portion 105c bent substantially horizontally at its middle towards the center of the substrate, and the middle of the bending portion 105c protrudes slightly upward to form a protrusion 105d.
- the first ring members 103 and the ring assembly 105 have a generally circular or elliptical cross section respectively, and are made from suitable materials such as steel.
- the ring assembly 105 is attached movably onto the substrate 101 by two turned-over portions 107. Two turned-over portions 107 are formed on one side of the substrate 101 provided with the ring assembly 105 by cutting or punching the substrate and turning the cut or punched portions of the substrate over.
- a generally upstanding projection 109 is substantially formed in the middle of the substrate 101 by cutting or punching the substrate 101 near the ring assembly 105 and bending the cut or punched portions of the substrate upwards from the substrate.
- a cutout 111 is left in the substrate 101 because the projection 109 is bent upwards.
- An elongated slot 113 is formed in the longitudinal side of the substrate provided with the ring assembly 105, and its function will be described later.
- One or more holes 115 may also be formed in the substrate for attaching the lever arch mechanism onto such as those of files or notebooks.
- the lever arch mechanism 100 further comprises a lever 117.
- the lever 117 comprises a lever body 117a, a lever head 117b extending obliquely and downwards from one end of the lever body 117a and a lever handle (operation end) 117c extending obliquely and downwards from other end of the lever body 117a.
- the lever arch mechanism 100 according to the invention also comprises a roller 119 which is preferably made from plastics. The roller 119 is attached onto the free end of the lever head 117b through a pin shaft 121.
- two first ring members 103 are mounted fixedly on one longitudinal side of the substrate 101 by a connection such as rivets, welding or any other known connection means.
- Two ends of the connecting portions 105b of the ring assembly 105 are fixed movably by two turned-over portions 107 so that the ring assembly 105 is attached movably onto the substrate 101.
- the U-shaped bending portion 105c of the connecting portions 105b substantially locates near the projection 109 to movably attach the ring assembly 105 onto other longitudinal side of the substrate 101 so that two second ring members 105a of the ring assembly 105 align with two first ring members 103 attached fixedly.
- the lever 117 provided with the roller 119 is attached rotatably onto the projection 109 at a joint 117d between the lever body 117a and the lever head 117b by a fastener 123 such as a rivet so that the roller 119 may move substantially on the bending portion 105c of the ring assembly 105.
- a leaf spring 125 is bended slightly into a generally arcuate shape, with one end of the leaf spring 125 inserted into the elongated slot 113 of the substrate 101 to be retained on the substrate 101, with other end located below the bending portion 105c of the ring assembly 105 and abutting resiliently against the bending portion 105c of the ring assembly 105 for pushing the bending portion 105c of the ring assembly 105 upwards by its resilience.
- the mounting position of the leaf spring 125 is not limited to the illustrated position as long as the leaf spring 125 can abut against the underside of the bending portion 105c.
- the shape of the leaf spring 125 also is not limited to the illustrated shape as long as the leaf spring 125 can abut against the underside of the bending portion 105c to generate an upward pushing force.
- the lever head 117b may rotate counterclockwise around the fastener 123 from the state shown in Fig.5 , thereby moving the roller 119 mounted onto the lever head 117b to the protrusion 105d along the bending portion 105c of the ring assembly 105 in a direction towards the lever handle 117c, and pressing the connecting portion 105b onto the substrate 101 against the upward pushing force of the leaf spring 125.
- two second ring members 105a of the ring assembly 105 move together to a position where they contact with two opposite first ring members 103 to form closed loops for retaining loose-leaf pages, as shown in Fig.2 .
- the lever head 117b may rotate clockwise around the fastener 123 from the state shown in Fig.2 , thereby moving the roller 119 mounted onto the lever head 117b from the protrusion 105d along the bending portion 105c of the ring assembly 105 in a direction away from the lever handle 117c, and releasing the pressing of the connecting portion 105b onto the substrate 101.
- the connecting portion 105b moves away from the substrate 101 under the action of the upward pushing force of the leaf spring 125 so that two second ring members 105a of the ring assembly 105 move from two first ring members 103 to form opened loops for accessing loose-leaf pages.
- two stoppers 127a and 127b are formed on the projection 109 for limiting respectively the rotation ranges of the lever head 117b when the lever arch mechanism is closed and opened.
- the stopper 127b limits the lever head 117b to a position where the lever arch mechanism is in the closed state.
- a recess 105e is preferably formed on the bending portion 105c of the ring assembly 105 at one side of the protrusion 105d to which the roller 119 will move.
- the recess 105e accommodates the roller 119 when the lever arch mechanism is opened. Both sides of the protrusion 105d may be provided symmetrically with recesses 105e for facilitating machining.
- Figs.9 to 15 show the lever arch mechanism 200 according to a second embodiment of the invention.
- the structure of the lever arch mechanism 200 according to the second embodiment of the invention is substantially similar to that of the lever arch mechanism 100 according to the first embodiment of the invention except the shape of the lever.
- Parts of the lever arch mechanism 200 according to the second embodiment corresponding to parts of the lever arch mechanism 100 according to the first embodiment are indicated by the same reference numerals, plus "100". The description for the same parts will be omitted.
- the lever 217 comprises a lever body 217a, a lever head 217b extending obliquely and upwards from one end of the lever body 217a and a lever handle 217c extending obliquely and upwards from other end of the lever body 217a.
- the roller 219 is attached onto a joint 217d between the lever body 217a and the lever head 217b by a pin shaft 221.
- the lever 217 provided with the roller 219 may be mounted at the free end of the lever head 217b onto the projection 209 by a fastener 223.
- the lever head 217b may rotate counterclockwise around the fastener 223 from the state shown in Fig. 13 , thereby moving the roller 219 mounted onto the lever head 217b to the protrusion 205d along the bending portion 205c of the ring assembly 205 in a direction towards the lever handle 217c, and pressing the connecting portion 205b onto the substrate 201 against the upward pushing force of the leaf spring 225.
- two second ring members 205a of the ring assembly 205 move together to a position where they contact with two opposite first ring members 203 to form closed loops for retaining loose-leaf pages, as shown in Fig. 10 .
- the lever head 217b may rotate clockwise around the fastener 223 from the state shown in Fig.
- the lever arch mechanism since the lever is arranged to close the lever arch mechanism by rotating the lever upwards and away from the substrate, and to open the lever arch mechanism by rotating the lever downwards and toward the substrate, the lever is more close to the substrate when the lever arch mechanism is opened, thereby substantially not occupying the gap between two ring members facing to each other and being very convenient for accessing the loose-leaf pages.
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- Sheet Holders (AREA)
- Clamps And Clips (AREA)
Abstract
A lever arch mechanism comprising: a substrate; two first ring members attached fixedly onto the substrate; a ring assembly attached movably onto the substrate, the ring assembly comprising two second ring members; an elastic member for pushing the ring assembly away from the substrate by its elastic force; a projection extending upwards from the substrate; and a lever mechanism attached rotatably onto the projection for contacting the ring assembly, the lever mechanism being used to press the ring assembly onto the substrate or move the ring assembly away from the substrate for closing or opening the lever arch mechanism. The lever mechanism is arranged to close the lever arch mechanism by rotating the lever mechanism upwards and away from the substrate and open the lever arch mechanism by rotating the lever mechanism downwards and toward the substrate. In the lever arch mechanism according to the invention, the lever mechanism is more close to the substrate when the lever arch mechanism is opened, thereby substantially not occupying the gap between two ring members facing to each other and being very convenient for accessing the loose-leaf pages.
Description
- This invention relates to a lever arch mechanism.
- A lever arch mechanism is stationery widely used for retaining pages such as loose-leaf pages. Chinese Patent No.
01124645.6 owned by the present applicant disclosed a lever arch mechanism comprising a substantially flat substrate; two first ring members separated from each other and having an end fixedly attached onto one longitudinal side of the substrate, the first ring members extending generally vertically upwards from the substrate and bent slightly at their other end to form a bending portion; two second ring members separated from each other and having an end movably attached onto the other longitudinal side of the substrate, the second ring members extending generally vertically upwards from the substrate and bent slightly at the other end to form the other bending portion, thereby forming a closed loop by engagement with the bending portion on the other end of two first ring members when the lever arch mechanism is closed, two second ring members connected integrally with each other at their ends near the substrate by a connecting portion to allow two second ring members move together, the connecting portion having a generally U-shaped bending portion bent at its middle portion towards the center of the substrate; a generally upstanding projection formed at the center of the substrate by cutting the substrate and bending the cut portion upwards; a leaf spring with one end attached in a groove cut in the substrate adjacent the other longitudinal side and the other end abutting resiliently against the underside of the generally U-shaped bending portion of the connecting portion, the leaf spring pushing the connecting portion away from the substrate plane to allow two second ring members move together and away from two first ring members fixedly attached, thus opening the lever arch mechanism; and a lever rotatably attached onto the projection and having a roller on the end that is mounted onto the protrusion. By pressing and rotating the lever downward, the roller may resist against the upward pushing force of the leaf spring and move along a direction away from the lever handle to a position where the connecting portion presses against the substrate, thereby moving two second ring members together to a position where two second ring members contact with two first ring members that are attached fixedly to form a close loop respectively. By rotating the lever upward and away from the substrate, the roller may move along a direction towards the lever handle to a position where it is possible to release the pressing against the connecting portion, so that the connecting portion may move away from the substrate under the action of the upward pushing force of the leaf spring, thereby moving two second ring members together and away from two first ring members to form an opened loop respectively. As a result, the lever arch mechanism is opened. - In the conventional lever arch mechanism, the lever arch mechanism may be closed by pressing and rotating the lever downward, and the lever arch mechanism may be opened by rotating the lever upward and away from the substrate. In this case, when the lever arch mechanism is opened, the lever is at an upward-raised position and occupies a gap between two ring members facing to each other, thereby interfering with accessing loose-leaf pages and resulting in much inconvenience for accessing loose-leaf pages.
- Accordingly, there is a need for an improved lever arch mechanism.
- The present invention is proposed in consideration of the conventional lever arch mechanism.
- Therefore, one object of the invention is to provide a lever arch mechanism in which the lever does not occupy the gap between two ring members facing to each other when the lever arch mechanism is opened, thereby facilitating accessing loose-leaf pages.
- According to the invention, a lever arch mechanism is provided, comprising:
- a flat substrate;
- two first ring members attached fixedly onto the substrate, two first ring members being separated from and parallel with each other;
- a ring assembly attached movably onto the substrate, the ring assembly comprising two second ring members separated from and parallel with each other, two first ring members and two second ring members being disposed in such a way that they face to each other respectively so that the respective ring members facing to each other form a closed loop when the ring assembly moves;
- an elastic member with one end attached onto the substrate and the other end abutting against the ring assembly, the elastic member pushing the ring assembly away from the substrate by its elastic force;
- a projection extending upwards from the substrate; and
- a lever mechanism attached rotatably onto the projection for contacting the ring assembly, the lever mechanism being used to press the ring assembly onto the substrate or move the ring assembly away from the substrate for closing or opening the lever arch mechanism;
- In the lever arch mechanism according to the invention, since the lever mechanism is arranged to close the lever arch mechanism by rotating the lever mechanism upwards and away from the substrate, and to open the lever arch mechanism by rotating the lever mechanism downwards and toward the substrate, the lever mechanism is more close to the substrate when the lever arch mechanism is opened, thereby substantially not occupying the gap between two ring members facing to each other and being very convenient for accessing the loose-leaf pages.
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Fig.1 is an exploded perspective view of a lever arch mechanism according to a first embodiment of the invention; -
Fig.2 is a perspective view of the lever arch mechanism according to the first embodiment of the invention in a closed state; -
Fig.3 is an other side perspective view of the lever arch mechanism according to the first embodiment of the invention in a closed state; -
Fig.4 is a bottom perspective view of the lever arch mechanism according to the first embodiment of the invention in a closed state; -
Fig.5 is a perspective view of the lever arch mechanism according to the first embodiment of the invention in an opened state; -
Fig.6 is an other side perspective view of the lever arch mechanism according to the first embodiment of the invention in an opened state; -
Fig.7 is a bottom perspective view of the lever arch mechanism according to the first embodiment of the invention in an opened state; -
Fig.8A is a perspective view of the ring members of the lever arch mechanism according to the first embodiment of the invention; -
Fig.8B is a side view of the ring members of the lever arch mechanism according to the first embodiment of the invention; -
Fig.8C is an enlarged view of the circled portion inFig.8B ; -
Fig.9 is an exploded perspective view of the lever arch mechanism according to a second embodiment of the invention; -
Fig.10 is a perspective view of the lever arch mechanism according to the second embodiment of the invention in a closed state; -
Fig.11 is an other side perspective view of the lever arch mechanism according to the second embodiment of the invention in a closed state; -
Fig.12 is a bottom perspective view of the lever arch mechanism according to the second embodiment of the invention in a closed state; -
Fig.13 is a perspective view of the lever arch mechanism according to the second embodiment of the invention in an opened state; -
Fig.14 is an other side perspective view of the lever arch mechanism according to the second embodiment of the invention in an opened state; and -
Fig.15 is a bottom perspective view of the lever arch mechanism according to the second embodiment of the invention in an opened state. -
Figs.1 to 7 show alever arch mechanism 100 according to a first embodiment of the invention. Thelever arch mechanism 100 according to the invention comprises a generallyflat substrate 101. Twofirst ring members 103 that are separated from and parallel with each other are attached fixedly onto a longitudinal side of thesubstrate 101. Twofirst ring members 103 substantially extend vertically upwards from thesubstrate 101 and are bent slightly at their free ends to form a bending portion respectively. Aring assembly 105 is attached movably onto the other longitudinal side of thesubstrate 101. Thering assembly 105 comprises twosecond ring members 105a that are separated from and parallel with each other and a connectingportion 105b for connecting integrally twosecond ring members 105a. Each of twosecond ring members 105a has a bending portion formed on its free end respectively to allow twosecond ring members 105a of thering assembly 105 to engage with the corresponding one of twofirst ring members 103 that are attached fixedly onto thesubstrate 101 to form a closed loop. Twosecond ring members 105a of thering assembly 105 are connected integrally with each other at their other ends near thesubstrate 101 by the connectingportion 105b. The connectingportion 105b has a generallyU-shaped bending portion 105c bent substantially horizontally at its middle towards the center of the substrate, and the middle of thebending portion 105c protrudes slightly upward to form aprotrusion 105d. Thefirst ring members 103 and thering assembly 105 have a generally circular or elliptical cross section respectively, and are made from suitable materials such as steel. Thering assembly 105 is attached movably onto thesubstrate 101 by two turned-overportions 107. Two turned-overportions 107 are formed on one side of thesubstrate 101 provided with thering assembly 105 by cutting or punching the substrate and turning the cut or punched portions of the substrate over. - A generally
upstanding projection 109 is substantially formed in the middle of thesubstrate 101 by cutting or punching thesubstrate 101 near thering assembly 105 and bending the cut or punched portions of the substrate upwards from the substrate. Acutout 111 is left in thesubstrate 101 because theprojection 109 is bent upwards. Anelongated slot 113 is formed in the longitudinal side of the substrate provided with thering assembly 105, and its function will be described later. One ormore holes 115 may also be formed in the substrate for attaching the lever arch mechanism onto such as those of files or notebooks. - The
lever arch mechanism 100 according to the invention further comprises alever 117. Thelever 117 comprises alever body 117a, alever head 117b extending obliquely and downwards from one end of thelever body 117a and a lever handle (operation end) 117c extending obliquely and downwards from other end of thelever body 117a. Thelever arch mechanism 100 according to the invention also comprises aroller 119 which is preferably made from plastics. Theroller 119 is attached onto the free end of thelever head 117b through apin shaft 121. - In the assembled
lever arch mechanism 100, twofirst ring members 103 are mounted fixedly on one longitudinal side of thesubstrate 101 by a connection such as rivets, welding or any other known connection means. Two ends of the connectingportions 105b of thering assembly 105 are fixed movably by two turned-overportions 107 so that thering assembly 105 is attached movably onto thesubstrate 101. The U-shapedbending portion 105c of the connectingportions 105b substantially locates near theprojection 109 to movably attach thering assembly 105 onto other longitudinal side of thesubstrate 101 so that twosecond ring members 105a of thering assembly 105 align with twofirst ring members 103 attached fixedly. Thelever 117 provided with theroller 119 is attached rotatably onto theprojection 109 at a joint 117d between thelever body 117a and thelever head 117b by afastener 123 such as a rivet so that theroller 119 may move substantially on the bendingportion 105c of thering assembly 105. Aleaf spring 125 is bended slightly into a generally arcuate shape, with one end of theleaf spring 125 inserted into theelongated slot 113 of thesubstrate 101 to be retained on thesubstrate 101, with other end located below the bendingportion 105c of thering assembly 105 and abutting resiliently against the bendingportion 105c of thering assembly 105 for pushing the bendingportion 105c of thering assembly 105 upwards by its resilience. Of course, the mounting position of theleaf spring 125 is not limited to the illustrated position as long as theleaf spring 125 can abut against the underside of the bendingportion 105c. Further, the shape of theleaf spring 125 also is not limited to the illustrated shape as long as theleaf spring 125 can abut against the underside of the bendingportion 105c to generate an upward pushing force. - In the opened state of the lever arch mechanism shown in
Fig.5 , by grasping thelever handle 117c to rotate thelever 117 upwards and away from the substrate, thelever head 117b may rotate counterclockwise around thefastener 123 from the state shown inFig.5 , thereby moving theroller 119 mounted onto thelever head 117b to theprotrusion 105d along the bendingportion 105c of thering assembly 105 in a direction towards thelever handle 117c, and pressing the connectingportion 105b onto thesubstrate 101 against the upward pushing force of theleaf spring 125. As a result, twosecond ring members 105a of thering assembly 105 move together to a position where they contact with two oppositefirst ring members 103 to form closed loops for retaining loose-leaf pages, as shown inFig.2 . In contrast, in the closed state of the lever arch mechanism shown inFig.2 , by grasping thelever handle 117c to rotate thelever 117 downwards and towards the substrate, thelever head 117b may rotate clockwise around thefastener 123 from the state shown inFig.2 , thereby moving theroller 119 mounted onto thelever head 117b from theprotrusion 105d along the bendingportion 105c of thering assembly 105 in a direction away from thelever handle 117c, and releasing the pressing of the connectingportion 105b onto thesubstrate 101. As a result, the connectingportion 105b moves away from thesubstrate 101 under the action of the upward pushing force of theleaf spring 125 so that twosecond ring members 105a of thering assembly 105 move from twofirst ring members 103 to form opened loops for accessing loose-leaf pages. - In order to ensure the lever arch mechanism to be opened and closed appropriately, two
stoppers projection 109 for limiting respectively the rotation ranges of thelever head 117b when the lever arch mechanism is closed and opened. Preferably, thestopper 127b limits thelever head 117b to a position where the lever arch mechanism is in the closed state. - In order that the gap between two ring members facing to each other of the lever arch mechanism in the opened state is as large as possible for facilitating accessing loose-leaf pages, as shown in
Figs. 8A-8C , arecess 105e is preferably formed on the bendingportion 105c of thering assembly 105 at one side of theprotrusion 105d to which theroller 119 will move. Therecess 105e accommodates theroller 119 when the lever arch mechanism is opened. Both sides of theprotrusion 105d may be provided symmetrically withrecesses 105e for facilitating machining. -
Figs.9 to 15 show thelever arch mechanism 200 according to a second embodiment of the invention. The structure of thelever arch mechanism 200 according to the second embodiment of the invention is substantially similar to that of thelever arch mechanism 100 according to the first embodiment of the invention except the shape of the lever. Parts of thelever arch mechanism 200 according to the second embodiment corresponding to parts of thelever arch mechanism 100 according to the first embodiment are indicated by the same reference numerals, plus "100". The description for the same parts will be omitted. - In the
lever arch mechanism 200 according to the second embodiment of the invention, thelever 217 comprises alever body 217a, alever head 217b extending obliquely and upwards from one end of thelever body 217a and a lever handle 217c extending obliquely and upwards from other end of thelever body 217a. Theroller 219 is attached onto a joint 217d between thelever body 217a and thelever head 217b by apin shaft 221. Thelever 217 provided with theroller 219 may be mounted at the free end of thelever head 217b onto theprojection 209 by afastener 223. - In the opened state of the lever arch mechanism shown in
Fig.13 , by grasping the lever handle 217c to rotate thelever 217 upwards and away from the substrate, thelever head 217b may rotate counterclockwise around thefastener 223 from the state shown inFig. 13 , thereby moving theroller 219 mounted onto thelever head 217b to theprotrusion 205d along the bendingportion 205c of thering assembly 205 in a direction towards the lever handle 217c, and pressing the connectingportion 205b onto thesubstrate 201 against the upward pushing force of theleaf spring 225. As a result, twosecond ring members 205a of thering assembly 205 move together to a position where they contact with two oppositefirst ring members 203 to form closed loops for retaining loose-leaf pages, as shown inFig. 10 . In contrast, in the closed state of the lever arch mechanism shown inFig. 10 , by grasping the lever handle 217c to rotate thelever 217 downwards and towards the substrate, thelever head 217b may rotate clockwise around thefastener 223 from the state shown inFig. 10 , thereby moving theroller 219 mounted onto thelever head 217b from theprotrusion 205d along the bendingportion 205c of thering assembly 205 in a direction away from the lever handle 217c, and releasing the pressing of the connectingportion 205b onto thesubstrate 201. As a result, the connectingportion 205b moves away from thesubstrate 201 under the action of the upward pushing force of theleaf spring 225 so that twosecond ring members 205 a of thering assembly 205 move from twofirst ring members 203 to form opened loops for accessing loose-leaf pages. - In the lever arch mechanism according to the invention, since the lever is arranged to close the lever arch mechanism by rotating the lever upwards and away from the substrate, and to open the lever arch mechanism by rotating the lever downwards and toward the substrate, the lever is more close to the substrate when the lever arch mechanism is opened, thereby substantially not occupying the gap between two ring members facing to each other and being very convenient for accessing the loose-leaf pages.
- Although the preferred embodiments of the invention were described in detail taken in conjunction of the accompanying drawings in a non-limiting sense, it should be understood that various changes and modifications could be made without departing from the scope defined by accompanying claims of the invention. For example, a cam rather than the roller may be mounted at the end of the lever. Further, a concave and a convex may be provided on the free ends of the opposite ring members for preventing the ring members engaging with each other from disengaging. It is intended that all of the changes and modifications should fall into the protection scope of the invention.
Claims (18)
- A lever arch mechanism comprising:a flat substrate;two first ring members attached fixedly onto the substrate, two first ring members being separated from and parallel with each other;a ring assembly attached movably onto the substrate, the ring assembly comprising two second ring members separated from and parallel with each other, two first ring members and two second ring members being disposed in such a way that they face to each other respectively so that the respective ring members facing to each other form a closed loop when the ring assembly moves;an elastic member with one end attached onto the substrate and the other end abutting against the ring assembly, the elastic member pushing the ring assembly away from the substrate by its elastic force;a projection extending upwards from the substrate; anda lever mechanism attached rotatably onto the projection for contacting the ring assembly, the lever mechanism being used to press the ring assembly onto the substrate or move the ring assembly away from the substrate for closing or opening the lever arch mechanism;wherein the lever mechanism is arranged to close the lever arch mechanism by rotating the lever mechanism upwards and away from the substrate and open the lever arch mechanism by rotating the lever mechanism downwards and toward the substrate.
- The lever arch mechanism of claim 1, wherein the lever mechanism comprises a lever and an abutting portion attached onto the lever and contacting the ring assembly, the abutting portion moving on the ring assembly in a direction toward the operation end of the lever mechanism when closing the lever arch mechanism, and the abutting portion moving on the ring assembly in a direction away from the operation end of the lever mechanism when opening the lever arch mechanism.
- The lever arch mechanism of claim 2, wherein the lever comprises a lever body, a lever head extending downwards from one end of the lever body, and a lever handle extending from other end of the lever body.
- The lever arch mechanism of claim 3, wherein the lever is attached rotatably onto the projection at a joint between the lever body and the lever head.
- The lever arch mechanism of claim 3, wherein the abutting portion is attached onto the free end of the lever head.
- The lever arch mechanism of claim 3, wherein two stoppers are formed on the projection for limiting the rotating ranges of the lever head respectively when closing the lever arch mechanism and opening the lever arch mechanism.
- The lever arch mechanism of claim 2, wherein the lever comprises a lever body, a lever head extending upwards from one end of the lever body, and a lever handle extending from other end of the lever body.
- The lever arch mechanism of claim 7, wherein the lever is attached rotatably onto the projection at the free end of the lever head.
- The lever arch mechanism of claim 7, wherein the abutting portion is attached onto a joint between the lever body and the lever head.
- The lever arch mechanism of claim 7, wherein two stoppers are formed on the projection for limiting the rotating ranges of the lever head respectively when closing the lever arch mechanism and opening the lever arch mechanism.
- The lever arch mechanism of claim 2, wherein the abutting portion is a cam.
- The lever arch mechanism of claim 2, wherein the abutting portion is a roller.
- The lever arch mechanism of claim 1, wherein two second ring members connect integrally with each other by a connecting portion, the connecting portion comprising a bending portion bent toward the center of the substrate.
- The lever arch mechanism of claim 13, wherein the middle of the bending portion projects upwards to form a protrusion.
- The lever arch mechanism of claim 14, wherein a recess is formed on the bending portion at least at one side of the protrusion.
- The lever arch mechanism of claim 1, wherein the elastic member is a leaf spring.
- The lever arch mechanism of claim 1, wherein the elastic member is a spring wire.
- The lever arch mechanism of claim 1, wherein a convex or a concave is formed at the free end of one of two ring members facing to each other, and a mating concave or a mating convex is formed at the free end of the other one of two ring members facing to each other.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2006101108536A CN101125502A (en) | 2006-08-15 | 2006-08-15 | Lever clamp mechanism |
PCT/CN2007/000718 WO2008022509A1 (en) | 2006-08-15 | 2007-03-06 | Lever clip mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2052872A1 true EP2052872A1 (en) | 2009-04-29 |
Family
ID=39093663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07720338A Withdrawn EP2052872A1 (en) | 2006-08-15 | 2007-03-06 | Lever clip mechanism |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2052872A1 (en) |
CN (1) | CN101125502A (en) |
AR (1) | AR061682A1 (en) |
AU (1) | AU2007288059A1 (en) |
TW (1) | TW200836938A (en) |
WO (1) | WO2008022509A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009033729A1 (en) * | 2009-07-17 | 2011-01-27 | Ring Mexx Gmbh & Co. Kg | file mechanism |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4120720A1 (en) * | 1991-06-22 | 1992-12-24 | Leitz Fa Louis | FOLDER MECHANICS |
CN1124645A (en) | 1995-03-28 | 1996-06-19 | 李秀勇 | Syrup for curing arthralgia-syndrome pain |
GB9812201D0 (en) * | 1998-06-05 | 1998-08-05 | World Wide Stationery Mfg Co | Device for retaining a stack of papers |
WO2001056810A1 (en) * | 2000-01-31 | 2001-08-09 | Eduard Zust | Binder mechanism |
GB0005605D0 (en) * | 2000-03-08 | 2000-05-03 | Leco Stationery Mfg | Device for retaining a stack of papers in a file |
DE20306130U1 (en) * | 2003-04-17 | 2003-07-03 | Lunz, Elke, 96047 Bamberg | Ring binder file, has retainer for pivoting bracket formed by plastic component mounted on end of actuator lever |
-
2006
- 2006-08-15 CN CNA2006101108536A patent/CN101125502A/en active Pending
-
2007
- 2007-03-05 TW TW96107508A patent/TW200836938A/en unknown
- 2007-03-06 WO PCT/CN2007/000718 patent/WO2008022509A1/en active Application Filing
- 2007-03-06 AU AU2007288059A patent/AU2007288059A1/en not_active Abandoned
- 2007-03-06 EP EP07720338A patent/EP2052872A1/en not_active Withdrawn
- 2007-06-28 AR ARP070102877 patent/AR061682A1/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2008022509A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009033729A1 (en) * | 2009-07-17 | 2011-01-27 | Ring Mexx Gmbh & Co. Kg | file mechanism |
Also Published As
Publication number | Publication date |
---|---|
CN101125502A (en) | 2008-02-20 |
WO2008022509A1 (en) | 2008-02-28 |
AR061682A1 (en) | 2008-09-10 |
AU2007288059A1 (en) | 2008-02-28 |
TW200836938A (en) | 2008-09-16 |
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