CN200992042Y

CN200992042Y - lever clamp mechanism

Info

Publication number: CN200992042Y
Application number: CN 200720001877
Authority: CN
Inventors: 杜振源
Original assignee: Leco Stationery Manufacturing Co Ltd
Current assignee: Leco Stationery Manufacturing Co Ltd
Priority date: 2007-01-19
Filing date: 2007-01-19
Publication date: 2007-12-19
Anticipated expiration: 2017-01-19

Abstract

A lever clamp mechanism comprising: a substrate; the lever clamp mechanism comprises two first ring parts which are fixedly arranged on a base plate and are spaced and parallel, and a ring part which is movably arranged on the base plate, wherein the ring part comprises two second ring parts which are spaced and parallel, and the two first ring parts and the two second ring parts are respectively arranged opposite to each other, so that the first ring parts and the second ring parts which are respectively opposite to each other can form a closed ring when the lever clamp mechanism is closed; an elastic member having one end mounted to the base plate and the other end abutting against the ring member, for urging the ring member away from the base plate by an elastic force; a boss protruding upward from the substrate; and a lever fitted with an abutting portion, the lever being rotatably mounted to the boss such that the abutting portion is in contact with the ring member; the lever is provided with a first operation end and a second operation end which can be operated by a user. According to the utility model discloses a lever presss from both sides mechanism can reduce the required power of operating lever, but also convenient to use.

Description

Lever clamp mechanism

Technical field

The utility model relates to a kind of lever clamp mechanism.

Background technology

Lever clamp mechanism is a kind of stationery that is widely used for depositing such as pages such as loose leaf papers.The applicant's Chinese patent 01124645.6 discloses a kind of lever clamp mechanism, and this lever clamp mechanism comprises flat substantially substrate; Be spaced from each other and be fixedly secured to two first ring portions of a vertical sidepiece of substrate at the one end, two first ring portions vertically extend upward substantially from substrate, and slightly crooked to form bend at its other end; Be spaced from each other and be installed to two second ring portions of another vertical sidepiece of substrate at the one end movably, two second ring portions vertically extend upward substantially from substrate, and also form other bend at its other end, so that when lever clamp mechanism is closed, cooperate the formation closed hoop with the bend of two the first ring portion other ends, described two second ring portions interconnect by connecting portion at the end near substrate with being integral, so that described two second ring portions move together, described connecting portion partly forms the bend of U-shaped substantially towards substrate center's bending therebetween; Upwards bend at upright substantially lug boss of portion of substrate center formation by cutting substrate and with cutting part; The one side is installed in the cutting groove that described another the vertical sidepiece of adjacent substrates forms, opposite side is flexibly against the spring leaf of the bend of the U-shaped substantially downside of described connecting portion, described spring leaf is used for described connecting portion is pushed away described base plan, thereby cause described two second ring portions to move together and leave hard-wired two first ring portions, to open lever clamp mechanism; And being pivotally mounted to lever on the described lug boss, described lever has roller in the end that it is installed on the described lug boss.Rotate described lever by pushing downwards, can make roller overcome the upwards thrust of described spring leaf and move to along direction described connecting portion is pressed against position on the substrate away from lever handle portion, move to together and hard-wired two the first contacted positions of ring portion thereby drive described two second ring portions, form closed hoop; By making progress away from the described lever of substrate rotating, can make roller move to the position that releasing is pressed described connecting portion along direction towards lever handle portion, thereby make described connecting portion under the thrust that makes progress of described spring leaf, move apart substrate, cause described two second ring portions to move and leave hard-wired two first ring portions together, ring is opened in formation, to open lever clamp mechanism.

In the lever clamp mechanism of this prior art, an end of lever is installed on the lug boss, and the other end of lever is used for the operating lever clamp mechanism.In use, the user can only bring in by unique operation of operating lever and open or closed lever clamp mechanism, and this just need apply bigger power, and is not easy to operation (for example the user is in an end relative with the lever end) in some cases.

Thereby, be necessary the lever clamp mechanism of prior art is improved.

The utility model content

The problem that the utility model exists at the lever clamp mechanism of above-mentioned prior art and proposing.

Therefore, a purpose of the present utility model provides a kind of lever clamp mechanism, and it can just can be opened or closed lever clamp mechanism under the situation that applies relatively little power, but also is convenient to user's operating lever clamp mechanism.

According to the utility model, a kind of lever clamp mechanism is provided, described lever clamp mechanism comprises:

Flat substrate;

Be fixedly mounted in that on the described substrate two are spaced from each other and parallel first ring portion and movably be installed in ring component on the described substrate, described ring component comprises also two the second parallel ring portions that are spaced from each other, described two first ring portions and described two second ring portions relatively are provided with respectively mutually, make that mutual respectively relative first ring portion and second ring portion can form closed hoop when described lever clamp mechanism was closed;

One end is installed on the described substrate, its other end is against the elastic component of described ring component, is used for by elastic force described ring component being pushed away described substrate;

From the lug boss of described substrate to upper process; And

The lever of butting section is housed, and described lever is pivotally mounted on the described lug boss, makes described butting section contact with described ring component;

Wherein, described lever has first operating side and second operating side that is available for users to operate.

According to lever clamp mechanism of the present utility model, because lever has first operating side and second operating side that is available for users to operate, the user can operate first operating side and second operating side simultaneously with two hands, reduces the required power of operating lever thereby compare with single hand operated lever.On the other hand, the user also can be at the arbitrary end of lever clamp mechanism by single hand operated lever, thereby easy to use.

Description of drawings

Fig. 1 is the exploded perspective view according to lever clamp mechanism of the present utility model;

Fig. 2 is the stereogram that is in closure state according to lever clamp mechanism of the present utility model;

Fig. 3 is the opposite side stereogram that is in closure state according to lever clamp mechanism of the present utility model;

Fig. 4 is the bottom side perspective view that is in closure state according to lever clamp mechanism of the present utility model;

Fig. 5 is the front view that is in closure state according to lever clamp mechanism of the present utility model;

Fig. 6 is the vertical view that is in closure state according to lever clamp mechanism of the present utility model;

Fig. 7 is the stereogram that is in open mode according to lever clamp mechanism of the present utility model;

Fig. 8 is the opposite side stereogram that is in open mode according to lever clamp mechanism of the present utility model;

Fig. 9 is the bottom side perspective view that is in open mode according to lever clamp mechanism of the present utility model;

Figure 10 is the opposite side bottom side perspective view that is in open mode according to lever clamp mechanism of the present utility model;

Figure 11 is the front view that is in open mode according to lever clamp mechanism of the present utility model;

Figure 12 is the vertical view that is in open mode according to lever clamp mechanism of the present utility model;

Figure 13 is the stereogram according to the lever of lever clamp mechanism of the present utility model;

Figure 14 is the front view according to the lever of lever clamp mechanism of the present utility model;

Figure 15 is the end-view according to the lever of lever clamp mechanism of the present utility model; And

Figure 16 is the vertical view according to the lever of lever clamp mechanism of the present utility model.

The specific embodiment

Fig. 1-12 has shown according to lever clamp mechanism 100 of the present utility model.Comprise flat substantially substrate 101 according to lever clamp mechanism 100 of the present utility model.Install two regularly at a vertical sidepiece of substrate 101 and be spaced from each other and parallel 103, two first ring portions 103 of first ring portion vertically extend upward substantially from substrate 101, and slightly crooked at its free end to form bend.Another vertical sidepiece at substrate 101 movably is equipped with ring component 105.Ring component 105 comprises that two are spaced from each other and second parallel ring portion 105a and the connecting portion 105b that two second ring portion 105a are linked into an integrated entity.Each second ring portion 105a is formed with bend at its free end respectively, so that two second ring portion 105a of ring component 105 can complement each other to form closed hoop with corresponding relative first ring portion 103 on being fixedly secured to substrate 101.Two second ring portion 105a of ring component 105 interconnect by connecting portion 105b integratedly at its other end near substrate.Connecting portion 105b flatly is bent to form U-shaped bend 105c substantially towards substrate center in the middle substantially, and bend 105c mid portion slightly upwards projection forms jut 105d.First ring portion 103 and ring component 105 have circle or oval cross section substantially respectively, and are made by the suitable material such as steel.By in the 105 1 side two ends cuttings of substrate mounting ring segments or punching press, and will be cut or upwards and outside two the turnup portions 107 forming of turnup of the substrate portion of punching press, ring component 105 movably is installed on the substrate 101.

Near vertical sidepiece of substrate mounting ring segments 105 by cutting or punching press and will be cut or the substrate portion of punching press substantially erectly from upwards bending of substrate, thereby form upright substantially lug boss 109 at substrate 101 central parts.On substrate 101, form otch 111 owing to upwards bend lug boss 109.Near vertical side margins of substrate mounting ring segments 105, also be formed with elongated slot 113, will describe below the effect of elongated slot 113.Can also on substrate, form one or more hole 115, be used for lever clamp mechanism is fixed to the strip of paper used for sealing of file or notebook etc.

Also comprise lever 117 and roller 119 according to lever clamp mechanism 100 of the present utility model, roller 119 preferably is made of plastics.Roller 119 is installed on the lever by bearing pin 121.

In the lever clamp mechanism 100 of assembling, two first ring portions 103 are by being fixedly mounted in 101 1 vertical sidepieces of substrate such as riveted joint, welding or other known connected mode.Ring component 105 passes through two turnup portions 107 two ends of the connecting portion 105b of retainer ring parts 105 movably, and the mid portion of the U-shaped bend 105c of each connecting portion 105b is positioned near the lug boss 109 substantially, thereby ring component 105 movably is installed on substrate 101 another vertical sidepieces, makes two second ring portion 105a of ring component 105 align mutually with two first ring portions 103 of installing regularly respectively.The lever 117 that rod 119 is housed is pivotally mounted on the lug boss 109 by the fixture 123 such as rivet, makes that rod 119 can move on the bend 105c at ring component 105 substantially when lever 117 rotates.Spring leaf 125 1 ends of arcs are inserted in the elongated slot 113 on the substrate 101 and remain on the substrate 101 slightly substantially, its other end is placed in the bend 105c below of ring component 105 and flexibly against the bend 105c of ring component 105, is used for upwards promoting by elastic force the bend 105c of ring component 105.Certainly, position shown in the installation site of spring leaf 125 also is not limited to is as long as spring leaf 125 can be against bend 105c downside.In addition, shape shown in the shape of spring leaf 125 also is not limited to is as long as spring leaf 125 can produce upwards thrust against bend 105c downside.

Different with the lever clamp mechanism of prior art, have two operating sides that are available for users to grasping according to the lever 117 of lever clamp mechanism 100 of the present utility model, i.e. the first operating side 117a and the second operating side 117b.Roller 119 is installed on the lever 117 on the position between the first operating side 117a and the second operating side 117b.The another location of lever 117 between the first operating side 117a and the second operating side 117b is installed on the lug boss 109 by fixture 123.One among the first operating side 117a and the second operating side 117b can extend to outside corresponding first ring portion 103 and the second ring portion 105a, so that user's grasping.Preferably, as illustrated in Figures 5 and 6, the first operating side 117a and the second operating side 117b extend to outside corresponding first ring portion 103 and the second ring portion 105a.Although the lever shown in Figure 13-16 is substantially sheet, also be feasible such as other shape lever of elongated rod-shaped.According to the utility model, one or two among the first operating side 117a and the second operating side 117b extend to the first corresponding ring portion 103 and the ultimate range outside the second ring portion 105a preferably is not more than 40mm.When the operating side extends to the first corresponding ring portion 103 and the distance outside the second ring portion 105a when excessive, can and remain on page on the lever clamp mechanism and form and interfere, thereby hinder the upset page.

Under the lever clamp mechanism open mode shown in Fig. 7-12, make progress away from substrate rotating lever 117 by the first operating side 117a that holds lever 117, the second operating side 117b that holds lever 117 is downwards towards substrate rotating lever 117, perhaps upwards another holds the second operating side 117b of lever 117 downwards towards substrate rotating lever 117 to first an operating side 117a who holds lever 117 away from substrate rotating lever 117, lever 117 is rotated counterclockwise from state shown in Figure 5 around fixture 123, cause being installed to roller 119 on the lever on the bend 105c of ring component 105 along moving to jut 105d towards the first operating side 117a direction that is lifted, overcome the upwards thrust of spring leaf 125 and connecting portion 105b is pressed against on the substrate 101, thereby two second ring portion 105a that drive ring component 105 move to the 103 contacted positions of relative first ring portion with two together, as shown in Figure 2, form closed hoop to keep loose leaf paper.In contrast, under the lever clamp mechanism closure state shown in Fig. 2-6, the first operating side 117a by holding lever 117 is downwards towards substrate rotating lever 117, the second operating side 117b that holds lever 117 is upwards away from substrate rotating lever 117, perhaps first operating side 117a who holds lever 117 is downwards towards substrate rotating lever 117 and another holds the second operating side 117b of lever 117 upwards away from substrate rotating lever 117, lever 117 is clockwise rotated from state shown in Figure 2 around fixture 123, the roller 119 that causes being installed on the lever 117 moves apart jut 105d along the direction towards the second operating side 117b that is lifted, and unclamp pressing to connecting portion 105b, thereby make connecting portion 105b under the thrust that makes progress of spring leaf 125, move apart substrate 101, two second ring portion 105a that drive ring component 105 move apart two relative first ring portions 103 of installing regularly, formation is opened ring to open lever clamp mechanism, so that the access loose leaf paper.

In order to ensure closed and open lever clamp mechanism suitably, on lever 117, be formed with at least one outstanding stop part 117c.Preferably, shown in Figure 13-16, on lever 117, be formed with two outstanding stop part 117c, first operating side 117a of lever and the scope that the second operating side 117b can rotate when being respectively applied for restriction open and close lever clamp mechanism.Should be understood that also can be formed with one or two outstanding stop part on lug boss 109, they also can be respectively applied for the scope of restriction first operating side 117a and second operating side 117b rotation.

According to the utility model, when lever clamp mechanism was mobile between open mode and closure state, the angular range of the first operating side 117a and second operating side 117b rotation was less than or equal to 45 °.In addition, when lever clamp mechanism was mobile between open mode and closure state, the horizontal range that rod 119 moves on ring component 105 was not more than 8.5mm.

In order to make the gap between the relative ring portion of the lever clamp mechanism open big as much as possible so that the access loose leaf paper, jut 105d one side that roller 119 is about to shift to when preferably opening lever clamp mechanism on the bend 105c of ring component 105 is formed with recess 105e, is used for holding when opening lever clamp mechanism roller 119.For the ease of processing, also can be formed with recess 105e on jut 105d bilateral symmetry ground.Preferably, make the vertical range between the peak of convex surface of the minimum point of concave surface of recess 105e and jut 105d be equal to, or greater than the diameter of ring component 105.

When the lever folder was in closure state, the spacing distance of in the vertical direction was at least 8mm between the first operating side 117a and the ring portion, to avoid hindering along ring portion upset page; And the spacing distance of in the vertical direction is at least 6mm between the second operating side 117b and the substrate 101, so that grasping second operating side.When the lever folder was in full open position, the spacing distance of in the vertical direction was at least 8mm between the second operating side 117b and the ring portion, to avoid hindering access or upset page; And the spacing distance of in the vertical direction is at least 6mm between the first operating side 117a and the substrate 101, so that grasping first operating side.

For the ease of user's grasping and improve the comfort of operation, first operating side 117a that can lever and among the second operating side 117b one or two are provided with the sheath 117d that rubber, plastics or other flexible material are made.Can adopt the colored sheath of different colours as required, so that identification.Certainly, also can directly the first operating side 117a and the second operating side 117b be painted different colours.

Although abovely describe preferred embodiment of the present utility model in conjunction with the accompanying drawings in detail by nonrestrictive mode, should be understood that, under the situation that does not break away from the utility model claim institute restricted portion, can carry out various conversion and modification to the utility model.For example, cam part can be installed to replace roller in the end of lever.In addition, can also protuberance and recess be set, throw off with the ring portion that prevents to cooperatively interact at relative ring portion free end.These conversion and modification all should fall in the protection domain of the present utility model.

Claims

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

flat substrate;

Two mutually spaced apart and parallel first ring parts fixedly installed on the base plate, and a ring part movably mounted on the said base plate, said ring part including two mutually spaced apart and parallel first ring parts Two ring parts, the two first ring parts and the two second ring parts are arranged opposite to each other, so that when the lever clamp mechanism is closed, the first ring part and the second ring part respectively opposite to each other can form a closed loop;

one end is mounted on the base plate, and the other end is against the elastic member of the ring part, which is used to push the ring part away from the base plate by elastic force;

a raised portion protruding upward from the substrate; and

a lever provided with an abutment, said lever being rotatably mounted to said protrusion such that said abutment is in contact with said ring member;

It is characterized in that the lever has a first operating end and a second operating end operable by a user.

2. The lever clamp mechanism according to claim 1, wherein the abutting portion is mounted on the lever at a position between the first operating end and the second operating end.

3. The lever clamp mechanism of claim 1, wherein the lever is mounted to the protrusion at another position between the first operating end and the second operating end.

4. The lever clamp mechanism of claim 1, wherein one of the first operating end and the second operating end extends beyond a closed loop formed by a corresponding first and second ring portions opposite to each other. .

5. The lever clamp mechanism of claim 1, wherein both the first operating end and the second operating end extend beyond a closed loop formed by corresponding first and second ring portions opposite to each other.

6. The lever clamp mechanism according to claim 4 or 5, characterized in that the operating end extends beyond the corresponding first ring portion and second ring portion at a maximum distance of not more than 40 mm.

7. The lever clamp mechanism of claim 1, wherein the lever is in the shape of a sheet.

8. The lever clamp mechanism of claim 1, wherein the lever is in the shape of an elongated rod.

9. The lever clamp mechanism according to claim 1, wherein at least one protruding blocking portion is formed on the lever.

10. The lever clamp mechanism according to claim 1, wherein two protruding blocking portions are formed on the lever.

11. The lever clamp mechanism according to claim 1, wherein at least one protruding blocking portion is formed on the raised portion.

12. The lever clamp mechanism according to claim 1, wherein two protruding blocking parts are formed on the raised part.

13. The lever clamp mechanism according to claim 1, wherein the two second ring parts are connected into one body through a connecting part, and the connecting part includes a bent part bent toward the center of the base plate.

14 . The lever clamp mechanism according to claim 13 , wherein the middle portion of the curved portion protrudes upwards to form a protrusion, and the abutting portion closes the lever clamp mechanism when pressed against the protrusion.

15. The lever clamp mechanism according to claim 14, wherein when the lever clamp mechanism is opened, a concave portion is formed on the curved portion on the side of the protruding portion to which the abutting portion moves.

16 . The lever clamp mechanism according to claim 14 , characterized in that, recesses located on the curved portion are respectively formed on both sides of the protrusion.

17. The lever clamp mechanism according to claim 15 or 16, wherein the vertical distance between the lowest point of the concave surface of the recess and the highest point of the convex surface of the protrusion is equal to or greater than the The diameter of the ring part.

18. The lever clamp mechanism according to claim 1, wherein the rotation range of the first operating end and the second operating end is equal to or less than 45°.

19. The lever clamp mechanism of claim 1, wherein when the lever clamp mechanism moves between the open state and the closed state, the horizontal distance that the abutment moves on the ring member is not more than 8.5 mm.

20. The lever clamp mechanism according to claim 1, wherein when the first operating end or the second operating end is at the closest position to the base plate, the distance between the first operating end or the second operating end is The distance between the substrates in the vertical direction is at least 6 mm.

21. The lever clamp mechanism according to claim 1, characterized in that, when the first operating end or the second operating end is at the closest position to the ring portion, the distance between the first operating end or the second operating end is The distance between the rings in the vertical direction is at least 8mm.

22. The lever clamp mechanism of claim 1, wherein at least one of the first operative end and the second operative end is provided with a sheath of flexible material.

23. The lever clamp mechanism of claim 22, wherein said sheath is a colored sheath.

24. The lever clamp mechanism of claim 1, wherein the first operative end and the second operative end are of different colors.

25. The lever clamp mechanism of claim 1, wherein the elastic member is a leaf spring.

26. The lever clamp mechanism of claim 1, wherein said elastic member is a spring wire.

27. The lever clamp mechanism of claim 1, wherein the abutment portion is a cam portion.

28. The lever clamp mechanism of claim 1, wherein said abutment is a roller.