CN111284158B

CN111284158B - Stapler without staple

Info

Publication number: CN111284158B
Application number: CN202010092305.5A
Authority: CN
Inventors: 龙珊
Original assignee: Chongqing Aerospace Polytechnic College
Current assignee: Chongqing Aerospace Polytechnic College
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2021-01-08
Anticipated expiration: 2040-02-14
Also published as: CN111284158A

Abstract

The invention discloses a stapler without staple, which comprises a lower box body with an upward opening, wherein a U-shaped clamping plate parallel to the opening end face of the lower box body is arranged in the lower box body; the end surface of the bottom groove of the U-shaped clamping plate is in an inward concave V shape; the opening of the upper box body is downward, and one end face of the lower box body is hinged with the corresponding opposite face of the upper box body; the first cross rod is arranged in the upper box body; the first gear is rotatably sleeved on the first cross rod; the first end of the pressing plate is fixedly connected to the gear and can be parallel to the opening end face of the upper box body along with the rotation of the gear; the nail plate is fixed on the second end of the first end of the pressure plate in a smooth transition way; the second cross rod is arranged in the upper box body; the second gear is rotatably sleeved on the second cross rod and meshed with the first gear; and the pressure lever is fixedly connected with the second gear and extends out of the upper box body. The paper is bound by adopting the indentation frame folding mode, and the paper binding machine has the advantages of simple structure, firm binding and no material consumption.

Description

Stapler without staple

Technical Field

The invention relates to the field of cultivation, in particular to a stapler without a needle.

Background

Staplers are widely used in offices, and particularly, when binding printed materials, many of the existing staplers bind a plurality of sheets of paper materials with staples.

The conventional stapler can be bound only by consumable materials, namely, a staple is made of metal and easy to rust, and iron and waste paper must be separated during the process of recycling paper and then processed, for example, when a paper shredder is used for shredding paper and waste paper is recycled and pulped. Meanwhile, in daily office work, most of bound materials are small in paper quantity and thin in overall binding thickness, and therefore the use of the staple is a waste of resources.

The patent publication No. CN109664631A, entitled a stapler without staple, the publication No. CN109693466A, entitled a press-fit stapler without staple, the publication No. CN209126350U, entitled an embossing stapler without staple all disclose the proposal of the stapler without staple, and at the same time, the patent publication No. CN209126350U, entitled an embossing stapler without staple, all of which adopt the mode of pressing to generate indentation and the like to bind, the binding is realized only by indentation, the fixing effect is poor, and the paper is easy to scatter along with the increase of the turning times.

Patent publication No. CN202428859U, entitled stapler without staple, also discloses a stapling-free solution, which uses paper sheets to be pierced and then fixed. This scheme only alternates to the paper, does not press the whole after binding, and the tongue shape piece that consequently alternates will be taken out from the bar seam under the effect of the restoring force of paper, only fixes the paper through the mode of alternating simultaneously, and fixed effect is also relatively poor.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a stapler without staple, which staples sheets of paper in a manner of being folded by an impression tray, and which has the advantages of simple structure, secure stapling, and no use of consumables.

The purpose of the invention is realized by the following technical scheme:

a stapler without staple comprises an upper box body and a lower box body which are used for fixing paper to be stapled, wherein the lower box body comprises a U-shaped clamping plate of which the surface is used for placing the paper to be stapled, and the end surface of a bottom groove of the U-shaped clamping plate is concave V-shaped; the upper box body comprises a pressing plate which is matched with the U-shaped clamping plate to press and cut the paper to be bound to form a tongue-shaped clamping strip; the nail plate penetrates through the V-shaped indent on the U-shaped clamping plate and is used for puncturing the paper to be bound to form a strip-shaped clamping seam, and the tongue-shaped clamping strip of the paper to be bound is clamped into the strip-shaped clamping seam;

the opening of the lower box body is upward, and the U-shaped clamping plate is arranged inside the lower box body and is parallel to the opening end face of the lower box body;

the opening of the upper box body is downward, and the end faces of all the openings of the lower box body and the upper box body are opposite one to one; one end surface of the lower box body is hinged with the corresponding opposite surface of the upper box body; the top of the upper box body is provided with a strip-shaped opening;

the first cross rod is arranged in the upper box body and is parallel to the opening end face of the upper box body;

the first gear is rotatably sleeved on the first cross rod;

the outer contour of the pressing plate is rectangular; the first end of the gear is fixedly connected to the gear and can be parallel to the opening end face of the upper box body along with the rotation of the gear; the size and shape of two free opposite sides of the pressing plate are the same as the size and shape of the end faces of two opposite inner sides of the U-shaped clamping plate; the surface of the pressing plate, which is extruded by the paper, is a pressing surface;

one end of the nail plate is fixed on a second end opposite to the first end of the pressing plate in a smooth transition way; the second end opposite to the first end of the nail plate is pointed to the lower box body before stapling and is positioned right above the concave space of the U-shaped clamping plate;

the second cross rod is arranged in the upper box body and is parallel to the opening end face of the upper box body;

the second gear is rotatably sleeved on the second cross rod, the second gear is meshed with the first gear, and the ratio of the diameter of the second gear to the diameter of the first gear is larger than the ratio of the stroke of the pressure plate moving to the opening end face of the upper box body to the stroke of the pressure rod pressing;

the pressing rod is fixedly connected with the second gear and penetrates through the strip-shaped opening on the upper box body to extend out of the upper box body; the projection direction of the pressure lever is parallel to the strip-shaped opening.

Further, the folding plate is also included; the pressing plate is fixedly connected with the first gear through a folded plate; the folded plate is connected with the pressing plate at a right angle.

Furthermore, two ends of the opposite long edges of the folded plate are fixedly connected with the pressing plate and the first gear respectively; the pressing plate, the nail plate and the folded plate are arranged in a U shape;

the length of the folded plate is not less than the minimum distance between the joint of the first gear and the folded plate and the opening end of the upper box body.

Further, before stapling, the lower surface of the pressing plate is also provided with a nail.

Furthermore, two groups of movable blocking groups which are oppositely arranged are also arranged in the lower box body; the movable gear group comprises a plurality of movable gears,

the positioning rod is arranged in the lower box body, is positioned right below the U-shaped clamping plate and is parallel to two opposite inner side end faces of the U-shaped clamping plate;

an L-shaped baffle; one end of the positioning rod is rotatably sleeved outside the positioning rod; one end of each of the two L-shaped baffle plates is rotatably sleeved on the positioning rod, the two spring clamping protrusions in a natural state are respectively contacted with the turning positions of the two L-shaped baffle plates, and the distance between the other ends of the two L-shaped baffle plates is smaller than the distance between the two positioning rods and larger than the width of the widest position of the nail plate.

The spring is clamped and protruded; the lower box body is arranged in the lower box body and is positioned below the L-shaped baffle, and the lower box body stretches along with the rotation of the L-shaped baffle.

Furthermore, the edge of the surface opposite to the pressing surface of the pressing plate is provided with a sliding groove matched with the spring clamping protrusion.

Furthermore, the pressing surface of the pressing plate is chamfered.

Furthermore, a chamfer is arranged at the position where the upper surface of the U-shaped clamping plate and the pressing surface of the pressing plate are sheared.

Further, the nail plate comprises a nail plate,

one end of the guide part is fixedly connected with the pressing plate and arranged at an obtuse angle with the pressing plate;

one end of the puncture part is fixedly connected with the other end of the guide part; the other end of the puncturing part points to the lower box body before stapling, and the forward projection of the guide part and the puncturing part is positioned in the inner recess of the U-shaped clamping plate.

Further, still include reset spring, reset spring sets up between depression bar and last box body.

Due to the adoption of the technical scheme, the invention has the following advantages:

through the interlude of nail board, reduced the resistance of cuting the paper, the tongue shape portion that will cuting simultaneously forms a sharp portion, makes things convenient for subsequent interlude. The paper is cut and extruded through the pressing plate, so that an indentation is formed between the paper, and the connection between the paper is strengthened; the folding of the paper is realized through the rotation of the pressing plate, and the folded tongue-shaped part is inserted into the bound paper by the nail plate which rotates along with the folding of the paper. The whole binding mode comprises extrusion and folding, and the extrusion and folding are optimized by the best scheme, so that the binding effect of the paper is better.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof.

Drawings

The drawings of the invention are illustrated as follows:

fig. 1 is a schematic cross-sectional view of a stapler without staples.

FIG. 2 is a schematic view of the section A-A in FIG. 1.

Fig. 3 is an enlarged schematic view of B in fig. 1.

FIG. 4 is a schematic view of the cross-section C-C in FIG. 1.

Fig. 5 is an enlarged schematic view of the structure at D in fig. 4.

FIG. 6 is a schematic view of section E-E in FIG. 1.

Fig. 7 is an enlarged view of the structure at F in fig. 6.

Fig. 8 is an enlarged schematic view of the structure at G in fig. 1.

In the figure: 1. a lower box body; 2, a U-shaped clamping plate; 21. recessing; 3. an upper box body; 31. a strip-shaped opening; 4. a first cross bar; 5. a first gear; 6. pressing a plate; 61. pressing the face; 62. pricking nails; 63. a chute; 71. a guide portion; 72. a puncture section; 8. a second cross bar; 9. a second gear; 10. a pressure lever; 11. folding the plate; 121. positioning a rod; 122. a baffle plate; 123. the spring is clamped and protruded; 13. a return spring.

Detailed Description

The invention is further illustrated by the following figures and examples.

Example (b):

as shown in figures 1 to 8 of the drawings,

a stapler without staple comprises an upper box body 3 and a lower box body 1 which are used for fixing paper to be stapled, wherein the lower box body 1 comprises a U-shaped clamping plate 2 the surface of which is used for placing the paper to be stapled, and the end surface of a bottom groove of the U-shaped clamping plate 2 is concave 21; the upper box body 3 comprises a pressing plate 6 which is matched with the U-shaped clamping plate 2 to press and cut the paper to be bound to form a tongue-shaped clamping strip; the nail plate penetrates through the V-shaped indent 21 on the U-shaped clamping plate 2 and is used for puncturing paper to be bound to form a strip-shaped clamping seam and clamping a tongue-shaped clamping strip of the paper to be bound into the strip-shaped clamping seam;

the opening of the lower box body 1 is upward, and the U-shaped clamping plate 2 is arranged inside the lower box body 1 and is parallel to the opening end face of the lower box body 1; the end surface of the bottom groove of the U-shaped clamping plate 2 is concave 21V-shaped;

the opening of the upper box body 3 is downward, and the end faces of all the openings of the lower box body 1 and the upper box body 3 are opposite one by one; one end surface of the lower box body 1 is hinged with the corresponding opposite surface of the upper box body 3; the top of the upper box body 3 is provided with a strip-shaped opening 31;

the first cross rod 4 is arranged in the upper box body 3 and is parallel to the opening end face of the upper box body 3;

the first gear 5 is rotatably sleeved on the first cross rod 4;

the outer contour of the pressing plate 6 is rectangular; the first end of the gear is fixedly connected to the gear and can be parallel to the opening end face of the upper box body 3 along with the rotation of the gear; the size and shape of two free opposite sides of the pressing plate 6 are the same as the size and shape of the end faces of two opposite inner sides of the U-shaped clamping plate 2; the surface of the pressing plate 6, which is pressed by the paper, is a pressing surface 61;

one end of the nail plate is fixed on a second end opposite to the first end of the pressing plate 6 in a smooth transition way; the second end opposite to the first end of the nail plate is pointed to the lower box body 1 and is positioned right above the concave 21 space of the U-shaped clamping plate 2 before stapling;

the second cross rod 8 is arranged in the upper box body 3 and is parallel to the opening end face of the upper box body 3;

the second gear 9 is rotatably sleeved on the second cross rod 8, the second gear 9 is meshed with the first gear 5, and the diameter ratio of the second gear 9 to the first gear 5 is larger than the stroke ratio of the pressure plate 6 to the opening end face of the upper box body 3 to the pressing rod 10;

the pressure lever 10 is fixedly connected with the second gear 9 and extends out of the upper box body 3 through the strip-shaped opening 31 on the upper box body 3; the projection direction of the press rod 10 is parallel to the strip-shaped opening 31.

Through the interlude of nail board, reduced the resistance of cuting the paper, the tongue shape portion that will cuting simultaneously forms a sharp portion, makes things convenient for subsequent interlude. The paper is cut and extruded through the pressing plate 6, so that an indentation is formed between the paper, and the connection between the paper is strengthened; the folding of the paper is achieved by the rotation of the pressing plate 6, and the folded tongue-shaped part is inserted into the bound paper by the nail plate rotating along with the folding. The whole binding mode comprises extrusion and folding, and the extrusion and folding are optimized by the best scheme, so that the binding effect of the paper is better.

In this embodiment, a flap 11 is also included; the pressing plate 6 is fixedly connected with the first gear 5 through a folded plate 11; the flap 11 is connected at right angles to the press plate 6.

Because the first cross rod 4 is positioned above the opening end face of the upper box body 3, the tongue-shaped paper sheets which are cut cannot be strongly folded if the pressing plate 6 directly rotates, and the tongue-shaped paper sheets which are inserted possibly slide out from the strip-shaped seam punched by the nail plate. After the folding plate 11 is arranged, the pressing plate 6 can press and fold all the tongue-shaped paper sheets, and the possibility that the tongue-shaped paper sheets slide out from the strip-shaped seam formed by the nail plate is reduced.

In this embodiment, two ends of the opposite long sides of the folded plate 11 are respectively fixedly connected with the pressing plate 6 and the first gear 5; the pressing plate 6, the nail plate and the folded plate 11 are arranged in a U shape;

the length of the folded plate 11 is not less than the minimum distance between the joint of the first gear 5 and the folded plate 11 and the opening end of the upper box body 3.

In order to achieve the best press folding effect, the length of the flap 11 needs to be designed so that the stapled sheets can be well fixed.

In this embodiment, the lower surface of the pressing plate 6 is further provided with a staple 62 before stapling.

Several sheets of paper can be penetrated by the piercing pins 62 to form mutual compression in the penetrated areas, thereby achieving the effect of indentation (i.e., the effect of compression fixation).

In this embodiment, two sets of movable blocking groups are also arranged in the lower box body 1; the movable gear group comprises a plurality of movable gears,

the positioning rod 121 is arranged in the lower box body 1, is positioned under the U-shaped clamping plate 2 and is parallel to two opposite inner side end faces of the U-shaped clamping plate 2;

an L-shaped baffle 122; one end of the rotatable sleeve is sleeved on the positioning rod 121; one end of each of the two L-shaped baffles 122 is rotatably sleeved on the corresponding positioning rod 121, the two spring clamping protrusions 123 in a natural state are respectively in contact with the turning positions of the two L-shaped baffles 122, and the distance between the other ends of the two L-shaped baffles 122 is smaller than the distance between the two positioning rods 121 and larger than the width of the widest position of the nail plate.

A spring catch protrusion 123; is arranged in the lower box body 1, is positioned below the L-shaped baffle 122 and extends and retracts along with the rotation of the L-shaped baffle 122.

In order to fold the tail end of the tongue-shaped paper piece and facilitate subsequent insertion, the structure is arranged, and meanwhile, the structure can strengthen the pressing strength of the periphery of the tongue-shaped paper piece and the cutting position of the tongue-shaped paper piece, so that an effective indentation effect is formed.

In this embodiment, the edge of the surface of the pressing plate 6 facing the pressing surface 61 is provided with a slide groove 63 matching the spring catch protrusion 123.

After the binding is completed, the pressing plate 6 needs to be reset to carry out the next binding, the pressing plate 6 rotates reversely at the moment, the sliding groove 63 matched with the spring clamp protrusion 123 is arranged between the pressing plate 6 and the spring clamp protrusion, and the pressing plate 6 can be ensured to be reset smoothly.

In this embodiment, the pressing surface 61 of the pressing plate 6 is chamfered.

Set up the chamfer and can slow down the scissors effect (the mutual extrusion of two sharp faces) between clamp plate 6 and the U-shaped cardboard 2 for the paper just by effectual extrusion before the shearing, can effectual reinforcing indentation effect.

In this embodiment, a cut between the upper surface of the U-shaped clamping plate 2 and the pressing surface 61 of the pressing plate 6 is provided with a chamfer.

This arrangement has the same principle and effect as the arrangement of the chamfer on the pressing surface 61.

In this embodiment, the nail plate includes,

one end of the guide part 71 is fixedly connected with the pressing plate 6 and is arranged at an obtuse angle with the pressing plate 6;

a puncture part 72 having one end fixedly connected to the other end of the guide part 71; the other end of the puncturing part 72 is directed to the lower box body 1 before stapling, and the forward projection of the guide part 71 and the puncturing part 72 is positioned in the concave 21 of the U-shaped clamping plate 2.

In order to make the nail plate capable of effectively performing puncturing and guiding, a guide portion 71 and a puncturing portion 72 are provided.

In this embodiment, the device further comprises a return spring 13, and the return spring 13 is arranged between the pressing rod 10 and the upper box body 3.

In order to facilitate multiple use, reducing the number of operating steps, a return spring 13 is provided.

The stapler without staple in this embodiment is used by breaking the upper case 3 and the lower case 1 into a hinge shape, placing the sheets to be stapled between the upper case 3 and the lower case 1, and pressing down the upper case 3 so that the end faces of the upper case 3 and the lower case 1 fix the sheets.

Pressing the pressing rod 10, the pressing rod 10 rotates around the second cross rod 8, so that the second gear 9 rotates, and the first gear 5 is driven to rotate. The flap 11 on the first gear wheel 5, the press plate 6 and the peg board rotate around the first cross bar 4.

The piercing part 72 of the nail plate penetrates through the paper, the paper is torn under the action of the baffle 122 and the guide part 71, the paper of the tearing part is stacked along the guide part 71, and the stacked part is triangular.

As the pressing rod 10 is further pressed, the piercing nails 62 on the pressing plate 6 start to pierce the paper, and form piercing holes in the paper.

The pressing rod 10 continues to press, and the pressing plate 6 and the U-shaped clamping plate 2 extrude the paper. After the pressing rod 10 is pressed down to a certain amount, the pressing plate 6 and the U-shaped clamping plate 2 shear the paper, the paper is sheared to form a tongue shape, and meanwhile, the baffle 122 rotates clockwise around the positioning rod 121.

As the pressing rod 10 continues to press downwards, the pressing plate 6 continues to rotate around the first cross rod 4, and at the moment, the puncturing part 72 punctures the paper from bottom to top to form a strip-shaped gap; the pressing lever 10 is further pressed down, and the sheets stacked on the guide portion 71 and the punching portion 72 pass through the strip-shaped slits.

After the nail on the pressing plate 6 pierces the paper from bottom to top, the pressing rod 10 is loosened, the pressing plate 6 rotates around the first cross rod 4 in the reverse direction under the action of the return spring 13, and finally the pressing plate 6 is reset. At this time, the upper case 3 and the lower case 1 are opened again, and the bound paper is taken out.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims

1. The stapler is characterized by comprising an upper box body and a lower box body, wherein the upper box body and the lower box body are used for fixing paper to be stapled; the upper box body comprises a pressing plate which is matched with the U-shaped clamping plate to press and cut the paper to be bound to form a tongue-shaped clamping strip; the nail plate penetrates through the V-shaped indent on the U-shaped clamping plate and is used for puncturing the paper to be bound to form a strip-shaped clamping seam, and the tongue-shaped clamping strip of the paper to be bound is clamped into the strip-shaped clamping seam; the lower box body is provided with an upward opening, and the U-shaped clamping plate is arranged inside the lower box body and is parallel to the opening end face of the lower box body;

the first gear is rotatably sleeved on the first cross rod;

2. The stapler of claim 1, further comprising a flap; the pressing plate is fixedly connected with the first gear through a folded plate; the folded plate is connected with the pressing plate at a right angle.

3. The stapler of claim 2, wherein opposite ends of the long opposing sides of the flap are secured to the pressure plate and the first gear, respectively; the pressing plate, the nail plate and the folded plate are arranged in a U shape;

4. A stapler according to any one of claims 1 to 3, characterised in that the lower surface of the pressure plate is provided with a staple prior to stapling.

5. The stapler according to any one of claims 1-3, wherein two sets of movable stops are disposed in the lower case in an opposing manner; the movable gear group comprises a plurality of movable gears,

an L-shaped baffle; one end of the positioning rod is rotatably sleeved outside the positioning rod; one end of each of the two L-shaped baffle plates is rotatably sleeved on the positioning rod, the two spring clamping protrusions in a natural state are respectively contacted with the turning positions of the two L-shaped baffle plates, and the distance between the other ends of the two L-shaped baffle plates is smaller than the distance between the two positioning rods and is larger than the width of the widest position of the nail plate;

6. The stapler of claim 5, wherein the edge of the surface of the pressure plate opposite the pressing surface is provided with a channel that mates with a snap projection.

7. The stapler of claim 1, wherein the pressing surface of the pressure plate is chamfered.

8. The stapler of claim 7, wherein the upper surface of the U-shaped catch plate is chamfered where it meets the pressing surface of the pressure plate.

9. The stapler of claim 1, wherein the staple plate comprises,

10. The stapler of any one of claims 1-3, 6, 7, 8, and 9, further comprising a return spring disposed between the plunger and the upper housing.