Office double-notch file crushing device and using method thereof
Technical Field
The invention belongs to the technical field of office supplies, particularly relates to a file smashing device, and more particularly relates to a double-notch file smashing device for office and a using method thereof.
Background
The document shredding device is a paper shredder, which is composed of a group of rotating blades, a paper comb and a driving motor, wherein paper is fed from the middle of the blades which are meshed with each other and is divided into a plurality of fine paper sheets so as to achieve the purpose of confidentiality, the paper shredding mode refers to the shape of the paper shredded by a paper shredding knife after the paper is processed by the paper shredder, and the existing paper shredding mode comprises the following steps: crushed, granular, segmented, foamed, striped, filamentous, and the like.
The reference 201711378107.X discloses a paper shredder, which includes a fixed substrate, a mounting plate, a paper shredding driving assembly, a paper shredding assembly, the paper shredding driving assembly is disposed on the fixed substrate, the paper shredding driving assembly is in driving connection with the paper shredding assembly, and the mounting plate is disposed on the fixed substrate. Compared with the paper shredding device, the paper shredding driving assembly does not have a double-notch paper shredding structure, is single in function and reduces the paper shredding efficiency.
The conventional office file crushing device only has a single-layer paper crushing structure, so that the working efficiency of the file crushing device is reduced, and the crushing operation of a plurality of groups of files cannot be finished at one time; meanwhile, the traditional file crushing device is of an integrated fixed structure, combined fixed operation cannot be performed, and operation difficulty in maintenance of the file crushing device is increased; meanwhile, the traditional file crushing device is not provided with a sealing protection structure, so that a paper tube in the file crushing device is easy to scatter in the taking-out process, the paper tube cannot be protected in a sealing manner, and certain adverse effects are brought to a user.
Disclosure of Invention
The device aims to overcome the defects that the traditional office file crushing device only has a single-weight paper crushing structure, the working efficiency of the file crushing device is reduced, and the crushing operation of a plurality of groups of files cannot be finished at one time; meanwhile, the traditional file crushing device is of an integrated fixed structure, combined fixed operation cannot be performed, and operation difficulty in maintenance of the file crushing device is increased; meanwhile, the traditional file crushing device does not have a sealing protection structure, so that a paper tube in the file crushing device is easy to scatter in the taking-out process, and cannot be protected in a sealing manner, and the office double-notch file crushing device is provided.
The purpose of the invention is realized by the following technical scheme:
a double-notch office file crushing device comprises a box body shell, a triangular clamping shell, a cylinder shell and a second triangular sleeve, wherein a fixed top cover is fixedly arranged on the outer surface of the upper end of the box body shell, the triangular clamping shell is fixedly arranged in the box body shell and is close to the lower part of the fixed top cover, a second triangular plate is fixedly arranged on the outer surface of the upper end of the triangular clamping shell, a first triangular plate is fixedly arranged on the outer surface of the lower end of the triangular clamping shell, four groups of transmission gears are movably arranged in the first triangular plate and the second triangular plate, and a first rolling rod is movably arranged in the triangular clamping shell;
a second rolling rod is movably mounted on one side, close to the first rolling rod, of the interior of the triangular clamping shell, a double-column rolling rod is movably mounted between the first rolling rod and the second rolling rod and close to the interior of the triangular clamping shell, a plurality of groups of teeth are fixedly mounted on the outer surfaces of the double-column rolling rod, the first rolling rod and the second rolling rod, the double-column rolling rod, the first rolling rod and the second rolling rod are fixedly butted and fixed through butting sleeves and transmission gears, a fixed guide pillar is fixedly mounted in the middle of the upper portion of the second triangular plate, the second triangular sleeve is movably sleeved on the outer surface of the triangular clamping shell, and a first triangular sleeve is movably sleeved on the outer surface of the triangular clamping shell, close to the bottom of the second triangular sleeve;
the triangle card shell passes through the second triangle cover and is fixed with first triangle cover and box shell butt joint, through fixed card angle fixed connection between second triangle cover and first triangle cover and the box shell, the second triangle cover has all run through with the internal surface of first triangle cover and has seted up first triangular groove, the second triangle cover all runs through with one side that the internal surface of first triangle cover is close to first triangular groove and is equipped with the second triangular groove.
The cross section structure of first triangular groove, second triangular cover, first triangular cover and triangle card shell is equilateral triangle structure, the inside of first triangular plate and second triangular plate is triangle-shaped hollow structure, the equal fixed mounting of side surface of first triangular plate and second triangular plate has three group's roll caps, the upper portion fixed mounting of second triangular plate has the triangle cassette, it is fixed through being connected the guide pillar butt joint between second triangular plate and the triangle cassette, and the quantity of connecting the guide pillar is two sets of, and the upper end surface intermediate position fixed mounting of triangle cassette has fixed the handle of drawing, and the butt joint draw-in groove has all been seted up to first triangular plate and second triangular plate inboard.
The paper feeding mechanism is characterized in that two groups of paper feeding grooves are formed in the inner surface of the triangular clamping shell in a penetrating mode, three groups of hinges are arranged on the outer surface of the triangular clamping shell, fixing bolts are fixedly sleeved on the inner sides of the fixing clamping corners, and the fixing clamping corners and the fixing bolts are fixedly connected in a butt joint mode through threads.
The middle position of the inner surface of the upper end of the fixed top cover is penetrated and provided with a first notch, one side, close to the first notch, of the inner surface of the upper end of the fixed top cover is penetrated and provided with a second notch, the other side, close to the first notch, of the inner surface of the upper end of the fixed top cover is movably provided with a telescopic pull handle, and the fixed top cover and the box shell are fixedly butted through two groups of hanging buckles.
The double-column rolling rod is composed of two groups of rolling columns, the diameter of the cross section of the first rolling rod is larger than that of the cross section of the second rolling rod, the whole structure of the first rolling rod and the second rolling rod is a cylindrical hollow structure, a side pull cover plate is movably mounted on the inner side of the front end of the box shell, the box shell and the side pull cover plate are fixedly butted through a butt joint clamping frame, and a fixed pull groove is formed in the outer surface of the side pull cover plate.
The box body comprises a box body shell, wherein a plurality of groups of ventilation grooves are formed in the inner surfaces of two sides of the box body shell in a penetrating mode, four groups of sliding wheels are movably mounted at the bottom of the box body shell, and the box body shell and the four groups of sliding wheels are fixedly connected in a butt joint mode through clamping seats.
The inner surface of the inner side of the box body shell is fixedly provided with a containing box, the box body shell and the containing box are fixedly butted through a sliding base, the inner side of the upper portion of the box body shell is fixedly provided with a fixed top frame, and two groups of pressing clamping seats are fixedly arranged in the butt-joint clamping frame.
The cylinder shell is fixedly installed on the inner side of the upper portion of the containing box, a rotating rod is movably installed in the middle of the inner portion of the cylinder shell, and the cylinder shell is movably connected with the rotating rod through a bearing in a butt joint mode.
The lower extreme movable mounting of cylinder shell has the rotation hand wheel, and the upper end surface fixed mounting of cylinder shell has two sets to the spliced pole, and the cylinder shell passes through the dwang and seals the batching butt joint fixedly, and the surface of sealed batching is equipped with two sets of fixed links, and the internally mounted of box shell has a plurality of groups of motors, and the internal fixed surface of box shell installs the buckle, and the lower part surface of box shell is equipped with anticollision cover foot.
A use method of a double-notch office file crushing device comprises the following specific use operation steps:
fixing a containing box in a box body shell by using a sliding base, closing a side pull cover plate, tightly pressing and fixing the containing box by using a pressing clamping seat, starting a motor of the box body shell, and driving a double-column rolling rod, a first rolling rod and a second rolling rod to rotate by using the motor through a transmission gear;
secondly, paper is put into the fixed top cover from the first notch and the second notch, so that the paper enters between the double-column rolling rod and the first rolling rod through the first notch and the second notch, the paper entering the first notch is crushed by utilizing one group of rolling columns of the double-column rolling rod to be matched with teeth of the first rolling rod to rotate, and meanwhile, the paper entering the second notch is crushed by utilizing the other group of rolling columns of the double-column rolling rod to be matched with teeth of the second rolling rod to rotate;
and step three, discharging the crushed paper scraps into the storage box through a second rolling rod and a first rolling rod in rotation, matching with fixation between a fixing hanging ring and a buckle, and drawing out the sealing rolled cloth wound in the cylinder shell in the pulling process of the storage box so that the sealing rolled cloth covers the storage box.
The invention has the beneficial effects that:
1. through the arrangement of the double-column rolling rod, the double-column rolling rod is matched with the first rolling rod and the second rolling rod, when a user adds paper into the triangular clamping shell through the first notch and the second notch, a plurality of groups of motors are utilized to simultaneously drive the double-column rolling rod, the first rolling rod and the second rolling rod to rotate through the transmission gears, the rolling columns of the double-column rolling rod are matched with the first rolling rod and the second rolling rod to form two groups of paper shredding grooves, the paper entering the first notch is shredded through the rotation of the teeth on the first rolling rod by utilizing one group of rolling columns of the double-column rolling rod, the shredding operation is finished through the rotation of the teeth on the second rolling rod by utilizing the other group of rolling columns of the double-column rolling rod, the paper scraps can be discharged from a gap between the second rolling rod and the first rolling rod in the rotation process of the second rolling rod and the first rolling rod, so that the paper scraps fall into the box, thereby make this file reducing mechanism have two notch shredded paper structures, cooperate the first roller and the second roller of variation in size simultaneously, can make it carry out shredding operation to different files, increase its application scope, promote its work efficiency.
2. By arranging the first triangular sleeve and the second triangular sleeve, when a user maintains the interior of the document crushing device, the user rotates the fixed pull handle by holding the fixed pull handle of the triangular clamping seat, so that the second triangular plate and the first triangular plate rotate by a certain angle, the second triangular plate and the first triangular plate rotate to move in the first triangular sleeve and the second triangular sleeve, the second triangular plate and the first triangular plate are separated from the second triangular groove, the second triangular plate is superposed with the first triangular plate and the second triangular groove, so that the fixed pull handle is pulled outwards, the triangular clamping shell is pulled out from the first triangular sleeve and the second triangular sleeve, the triangular clamping shell is opened by matching with a hinge of the triangular clamping shell, the user can conveniently clean the first rolling rod and the second rolling rod in the triangular clamping shell, and the office double-notch document crushing device has combined fixed operation, the maintenance operation is more convenient.
3. Through setting up cylinder shell and sealed batching, when the user takes out the operation to the containing box, sealed batching in the cylinder shell utilizes fixed link to fix on the buckle in the box shell, when the user stimulates the containing box, take out sealed batching in the cylinder shell, make sealed batching in the cylinder shell cover at the containing box, play the isolation protection effect to the shredded paper in the containing box, avoid it to appear unrestrained phenomenon at the removal in-process, thereby make this official working with two notch file reducing mechanism have sealed protection architecture, increase its security.
4. Through setting up fixed roof-rack and sticising the cassette, behind the closed side pull cover plate of user, the utilization sticiss cassette and fixed roof-rack, can fix the containing box in the box shell from both sides, avoids the containing box phenomenon of rocking to appear in equipment operation in-process for the operation of equipment is more steady, reduces the noise that its production when moving, plays certain effect of making an uproar of falling.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view showing the overall structure of a document shredder with double notches for office use according to the present invention.
Fig. 2 is an exploded view of a double slot document shredder for office use according to the present invention.
FIG. 3 is an internal structure view of a triangular card case of the document shredder with double notches for office use according to the present invention.
FIG. 4 is an overall structure view of a triangular card case of the document shredder with double notches for office use according to the present invention.
FIG. 5 is an overall view of a first triangular sleeve of the document shredder with two notches for office use according to the present invention.
FIG. 6 is an internal structural view of a cylinder housing of a double-slot document shredder for office use according to the present invention.
In the figure: 1. a sliding wheel; 2. anti-collision sleeve feet; 3. a ventilation slot; 4. a triangular card seat; 5. fixing a pull handle; 6. a case body shell; 7. fixing the top cover; 8. a first notch; 9. a second notch; 10. laterally pulling the cover plate; 11. fixing a hanging ring; 12. fixing a pull groove; 13. butting the clamping frames; 14. a sliding base; 15. a storage box; 16. rotating a hand wheel; 17. a cylinder housing; 18. pressing the clamping seat; 19. a paper feeding groove; 20. a triangular clamping shell; 21. fixing the top frame; 22. a first set square; 23. a double-column rolling rod; 24. a first roller bar; 25. teeth; 26. a second roller bar; 27. a second set square; 28. fixing the guide post; 29. a transmission gear; 30. butting sleeves; 31. fixing the clamping angle; 32. a first triangular sleeve; 33. a rolling cap; 34. a second triangular sleeve; 35. butting the clamping grooves; 36. connecting the guide post; 37. a fixing bolt; 38. a second triangular groove; 39. a first triangular groove; 40. a bearing; 41. butting columns; 42. rotating the rod; 43. and (5) sealing the rolled cloth.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-6, a document crushing device with double notches for office use comprises a box body shell 6, a triangular clamping shell 20, a cylinder body shell 17 and a second triangular sleeve 34, wherein a fixed top cover 7 is fixedly arranged on the outer surface of the upper end of the box body shell 6, the triangular clamping shell 20 is fixedly arranged inside the box body shell 6 and close to the lower part of the fixed top cover 7, a second triangular plate 27 is fixedly arranged on the outer surface of the upper end of the triangular clamping shell 20, a first triangular plate 22 is fixedly arranged on the outer surface of the lower end of the triangular clamping shell 20, and four groups of transmission gears 29 are movably arranged inside the first triangular plate 22 and the second triangular plate 27;
a first rolling rod 24 is movably mounted inside the triangular clamping shell 20, a second rolling rod 26 is movably mounted inside the triangular clamping shell 20 close to one side of the first rolling rod 24, a double-column rolling rod 23 is movably mounted inside the triangular clamping shell 20 close to a position between the first rolling rod 24 and the second rolling rod 26, a plurality of groups of teeth 25 are fixedly mounted on the outer surfaces of the double-column rolling rod 23, the first rolling rod 24 and the second rolling rod 26, the teeth 25 play a main paper shredding role in the rotating process, the double-column rolling rod 23, the first rolling rod 24 and the second rolling rod 26 are fixedly butted and fixed through a butting sleeve 30 and a transmission gear 29, a fixed guide pillar 28 is fixedly mounted in the middle position of the upper portion of the second triangular plate 27, a second triangular sleeve 34 is movably sleeved on the outer surface of the triangular clamping shell 20, and a first triangular sleeve 32 is movably sleeved on the outer surface of the triangular clamping shell 20 close to the bottom of the second triangular sleeve 34;
triangle card shell 20 is fixed through second triangle cover 34 and first triangle cover 32 and 6 butt joints of box shell, through fixed card angle 31 fixed connection between second triangle cover 34 and first triangle cover 32 and the box shell 6, second triangle cover 34 all runs through with the internal surface of first triangle cover 32 and has seted up first triangular groove 39, second triangle cover 34 all runs through with the one side that the internal surface of first triangle cover 32 is close to first triangular groove 39 and is equipped with second triangular groove 38, second triangular groove 38 plays the butt joint fixed action to the installation of triangle card shell 20, make its installation more firm.
First triangular groove 39, second triangular groove 38, second triangular cover 34, the cross sectional structure of first triangular cover 32 and triangle card shell 20 is equilateral triangle structure, the inside of first triangular plate 22 and second triangular plate 27 is triangle-shaped hollow structure, the equal fixed mounting of side surface of first triangular plate 22 and second triangular plate 27 has three group rolling cap 33, rolling cap 33 can reduce the frictional force when first triangular plate 22 rotates with second triangular plate 27, prolong its life, the upper portion fixed mounting of second triangular plate 27 has triangle cassette 4, it is fixed with the butt joint of triangle cassette 4 through connecting guide pillar 36 between second triangular plate 27 and the triangle cassette 4, the quantity of connecting guide pillar 36 is two sets of, the upper end surface intermediate position fixed mounting of triangle cassette 4 has fixed handle 5 that draws, first triangular plate 22 has all seted up the butt joint draw-in groove 35 with second triangular plate 27 inboard.
Two sets of paper feed grooves 19 have been seted up in the internal surface of triangle card shell 20 runs through, and the surface of triangle card shell 20 is equipped with three hinges, utilizes the hinge can open triangle card shell 20 for its maintenance operation is more convenient, and the inboard fixed gim peg 37 that has cup jointed of fixed card angle 31, through the screw thread butt joint between fixed card angle 31 and the gim peg 37 fixed.
Fixed top cap 7's upper end internal surface intermediate position runs through and has seted up first notch 8, one side that the upper end internal surface of fixed top cap 7 is close to first notch 8 runs through and has seted up second notch 9, the opposite side movable mounting that the upper end internal surface of fixed top cap 7 is close to first notch 8 has flexible handle, the extending structure who utilizes flexible handle can take it out, the flexible handle that draws makes box shell 6's removal operation more convenient of pulling, it is fixed through two sets of buckles butt joint of hanging between fixed top cap 7 and the box shell 6.
The double-column rolling rod 23 is composed of two groups of rolling columns, the diameter of the cross section of the first rolling rod 24 is larger than that of the cross section of the second rolling rod 26, the overall structures of the first rolling rod 24 and the second rolling rod 26 are both cylindrical hollow structures, the side pull cover plate 10 is movably mounted on the inner side of the front end of the box shell 6, the box shell 6 and the side pull cover plate 10 are fixedly connected through the butt joint clamping frame 13, and the outer surface of the side pull cover plate 10 is provided with the fixed pull groove 12.
The both sides internal surface of box shell 6 all runs through and has seted up a plurality of groups ventilation groove 3, and box shell 6's bottom movable mounting has four sets of movable pulleys 1, and through the cassette butt joint between box shell 6 and the four sets of movable pulleys 1 fixed, ventilation groove 3 can avoid the inside phenomenon of weing of appearing of box shell 6.
The storage box 15 is fixedly mounted on the inner side surface of the box body shell 6, the box body shell 6 and the storage box 15 are fixedly connected in a butt joint mode through the sliding base 14, the fixed top frame 21 is fixedly mounted on the inner side of the upper portion of the box body shell 6, two groups of clamping seats 18 are fixedly mounted in the butt joint clamping frame 13, the clamping seats 18 are tightly pressed, the storage box 15 can be placed more firmly, and the phenomenon that the storage box 15 is shaken is avoided.
The cylinder housing 17 is fixedly installed at the inner side of the upper portion of the storage box 15, a rotating rod 42 is movably installed at the middle position inside the cylinder housing 17, and the cylinder housing 17 is movably butted with the rotating rod 42 through a bearing 40.
The lower extreme movable mounting of cylinder shell 17 has rotation hand wheel 16, and the upper end surface fixed mounting of cylinder shell 17 has two sets to the spliced pole 41, cylinder shell 17 is through dwang 42 and sealed batching 43 butt joint fixed, the surface of sealed batching 43 is equipped with two sets of fixed link 11, the internally mounted of box shell 6 has a plurality of groups of motors, the internal fixed surface of box shell 6 installs the buckle, the lower part surface of box shell 6 is equipped with anticollision cover foot 2, anticollision cover foot 2 can play the guard action to the four corners of box shell 6, increase its security.
A use method of a double-notch office file crushing device comprises the following specific use operation steps:
firstly, fixing a containing box 15 in a box body shell 6 by using a sliding base 14, closing a side pull cover plate 10, tightly pressing and fixing the containing box 15 by using a pressing clamping seat 18, starting a motor of the box body shell 6, and driving a double-column rolling rod 23, a first rolling rod 24 and a second rolling rod 26 to rotate by using the motor through a transmission gear 29;
secondly, placing paper into the first notch 8 and the second notch 9 of the fixed top cover 7, enabling the paper to enter between the double-column rolling rod 23 and the first rolling rod 24 through the first notch 8 and the second notch 9, and crushing the paper entering the first notch 8 by utilizing one group of rolling columns of the double-column rolling rod 23 to be matched with the teeth 25 of the first rolling rod 24 to rotate, and simultaneously crushing the paper entering the second notch 9 by utilizing the other group of rolling columns of the double-column rolling rod 23 to be matched with the teeth 25 of the second rolling rod 26 to rotate;
and step three, discharging the crushed paper scraps into the containing box 15 through the second rolling rod 26 and the first rolling rod 24 in rotation, and drawing out the sealing rolled cloth 43 wound in the cylinder shell 17 in the pulling process of the containing box 15 by matching with the fixation between the fixing hanging ring 11 and the buckle, so that the sealing rolled cloth 43 covers the containing box 15.
The invention aims to provide a document crushing device with double notches for office use, when in use, a user carries out paper adding operation through a first notch 8 and a second notch 9, a motor is used for driving a first rolling rod 24 and a second rolling rod 26 to crush paper into thin strips, so that the crushed paper is accumulated in a containing box 15, the double-column rolling rod 23 is arranged, the double-column rolling rod 23 is used for matching with the first rolling rod 24 and the second rolling rod 26, when the user adds the paper into a triangular clamping shell 20 through the first notch 8 and the second notch 9, a plurality of groups of motors are used for simultaneously driving the double-column rolling rod 23, the first rolling rod 24 and the second rolling rod 26 to rotate through a transmission gear 29, two groups of paper crushing grooves are formed by matching a rolling column of the double-column rolling rod 23 with the first rolling rod 24 and the second rolling rod 26, the paper entering into the first notch 8 is matched with the rotation of a tooth 25 on the first rolling rod 24 by matching a group of rolling columns of the double-column rolling rod 23, the paper entering from the second notch 9 can be crushed by the rotation of the teeth 25 on the double-column rolling rod 23 in cooperation with the second rolling rod 26 through the other group of rolling columns of the double-column rolling rod 23, the second rolling rod 26 and the first rolling rod 24 can discharge paper scraps through the gap between the second rolling rod 26 and the first rolling rod 24 in the rotation process, so that the paper scraps can fall into the storage box 15, the file crushing device has a double-notch paper crushing structure, and the paper crushing device can crush different files by the cooperation of the first rolling rod 24 and the second rolling rod 26 with different sizes, so that the application range is enlarged, the working efficiency is improved by arranging the first triangular sleeve 32 and the second triangular sleeve 34, when a user performs maintenance operation on the inside of the file crushing device, the user rotates the fixed pull handle 5 by holding the fixed pull handle 5 of the triangular clamping seat 4, so that the second triangular plate 27 and the first triangular plate 22 rotate by a certain angle, the second triangle 27 and the first triangle 22 are rotated to move in the first triangle sleeve 32 and the second triangle sleeve 34, so that the second triangle 27 and the first triangle 22 are separated from the second triangle groove 38, the second triangle 27 is overlapped with the first triangle 22 and the second triangle groove 38, the fixed pull handle 5 is pulled outwards, the triangular clamping shell 20 is pulled out from the first triangle sleeve 32 and the second triangle sleeve 34, the triangular clamping shell 20 is opened by matching with the hinge of the triangular clamping shell 20, a user can conveniently clean the first rolling rod 24 and the second rolling rod 26 in the triangular clamping shell 20, the office double-notch file crushing device has combined fixed operation, the maintenance operation is more convenient, the sealed rolling cloth 43 in the cylindrical shell 17 is fixed on a buckle in the box body shell 6 by using the fixed hanging ring 11 when the user takes out the containing box 15, when a user pulls the storage box 15, the sealing rolled cloth 43 in the cylinder shell 17 is drawn out, so that the sealing rolled cloth 43 in the cylinder shell 17 covers the storage box 15, the paper shreds in the storage box 15 are isolated and protected, and the phenomenon of spilling during moving is avoided, so that the office double-notch file crushing device has a sealing protection structure, the safety is improved, the fixed top frame 21 and the pressing clamping seat 18 are arranged, after the user closes the side pull cover plate 10, the pressing clamping seat 18 and the fixed top frame 21 are utilized, the storage box 15 in the box shell 6 can be fixed from two sides, the phenomenon of shaking during operation of the storage box 15 is avoided, the operation of equipment is more stable, the noise generated during operation of the equipment is reduced, and a certain noise reduction effect is achieved.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. Preferred embodiments are not exhaustive of all the details of the embodiments. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.