阅读说明：本技术 一种覆铜板的自动校正机构 (Automatic correction mechanism of copper-clad plate ) 是由 柴保山 刘旭阳 余国伟 李广元 于 2021-09-03 设计创作，主要内容包括：本发明涉及一种覆铜板的自动校正机构,包括承载台板,所述承载台板的顶面固定安装有物料承载箱,所述物料承载箱的顶部固定安装有物料承载面板,所述物料承载箱表面固定安装有电机箱。通过电动液压缸驱动输出活塞推杆推出或收缩,即可带动第一滑动框架和第二滑动框架在支撑箱架的内部滑移,从而使支撑纵臂稳定地移动,并带动其顶部支撑的基板矫正格挡结构移动,从而使两个校正限位角板和校正限位挡块移动,即实现了自动对校正结构进行调整的过程,达到了无需手动调整校正机构即可对基板校正结构进行调整的效果,提高了调整操作的效率,避免了导致覆铜板裁切不良,规避了校正不良导致覆铜板尺寸裁切不当的情况。(The invention relates to an automatic correction mechanism of a copper-clad plate, which comprises a bearing table plate, wherein a material bearing box is fixedly arranged on the top surface of the bearing table plate, a material bearing panel is fixedly arranged on the top of the material bearing box, and a motor box is fixedly arranged on the surface of the material bearing box. Release or shrink through electric hydraulic cylinder drive output piston push rod, can drive first sliding frame and second sliding frame and slide in the inside of supporting the tank tower, thereby make the support trailing arm remove steadily, and drive the base plate correction check structure removal of its top support, thereby make two rectify spacing scute and rectify limit stop and remove, the process of adjusting the correction structure has been realized automatically promptly, reached and need not manual adjustment aligning gear and can adjust the effect of base plate correction structure, the efficiency of adjustment operation has been improved, avoided leading to the copper-clad plate to cut badly, avoided rectifying badly and led to the copper-clad plate size to cut improper condition.)

1. The utility model provides an automatic correction mechanism of copper-clad plate, includes and bears platen (1), its characterized in that: the top surface of the bearing table board (1) is fixedly provided with a material bearing box (2), the top of the material bearing box (2) is fixedly provided with a material bearing panel (3), the surface of the material bearing box (2) is fixedly provided with a motor box (4), the top of the material bearing panel (3) is provided with a correcting limiting angle plate (5), the top of the correcting limiting angle plate (5) is fixedly provided with a correcting limiting stop block (6), the bottom surface of the bearing table board (1) is fixedly provided with a supporting longitudinal arm (7), the lower surface of the supporting longitudinal arm (7) is movably sleeved with a connecting arm sleeve (8), the surface of the connecting arm sleeve (8) is fixedly sleeved with a supporting box frame (9), the surface of the supporting box frame (9) is fixedly provided with a transverse supporting structure, and the bottom of the supporting box frame (9) is fixedly provided with a longitudinal foot post structure, the inside of supporting tank bracket (9) is equipped with electric hydraulic cylinder (10), the inside of electric hydraulic cylinder (10) is equipped with output piston push rod (11), the tip fixed mounting of output piston push rod (11) has first sliding frame (12), the bottom fixed mounting that output piston push rod (11) a side was kept away from in first sliding frame (12) has second sliding frame (13), support the bottom and second sliding frame (13) top surface fixed connection of trailing arm (7).

2. The automatic correction mechanism of copper-clad plate according to claim 1, characterized in that: the material bearing panel (3) top surface and the bottom surface run through and have been seted up and have been link up spout (14), the inside sliding connection who link up spout (14) has slip grillage (15), the top of slip grillage (15) and the bottom surface fixed connection who rectifies spacing scute (5), the bottom fixed mounting of slip grillage (15) has sliding bush (16), and sliding bush (16) sliding connection is in material bearing box (2), the inside fixed of sliding bush (16) is inlayed and is equipped with internal thread pipe (17), the inside threaded connection of internal thread pipe (17) has screw thread cross axle (18), first bearing (19) have been cup jointed to the one end of screw thread cross axle (18), the installation is run through and rotates through with the lateral wall of material bearing box (2) through first bearing (19) to the one end of screw thread cross axle (18), the other end of screw thread cross axle (18) has cup jointed second bearing (20), the screw thread cross shaft (18) is rotatably connected with the inner wall of the material bearing box (2) through a second bearing (20), a servo motor (21) is fixedly mounted inside the motor box (4), and the output end of the servo motor (21) is connected with the end part of the screw thread cross shaft (18).

3. The automatic correction mechanism of copper-clad plate according to claim 1, characterized in that: the bottom surface of the inner wall of the supporting box frame (9) is fixedly provided with a cylinder body support (22), and the top of the cylinder body support (22) is fixedly connected with the bottom of the electric hydraulic cylinder (10).

4. The automatic correction mechanism of copper-clad plate according to claim 1, characterized in that: the transverse supporting structure comprises a connecting cross arm (23), a reinforcing inclined strip plate (24) is fixedly mounted at the top of the connecting cross arm (23), and the top end of the reinforcing inclined strip plate (24) is fixedly connected with the surface of the supporting box frame (9).

5. The automatic correction mechanism of copper-clad plate according to claim 1, characterized in that: the longitudinal leg structure comprises a support column (25), and the support column (25) is a prism-shaped structure.

6. The automatic correction mechanism of copper-clad plate according to claim 1, characterized in that: the number of the bearing bedplate (1), the supporting longitudinal arms (7), the connecting arm sleeves (8) and the supporting box frame (9) is two, the supporting longitudinal arms (7) are of a prism structure, and the connecting arm sleeves (8) are of a rectangular frame structure.

7. The automatic correction mechanism of copper-clad plate according to claim 1, characterized in that: the correcting limit angle plate (5) is of a right-angle plate-shaped structure, and the top surface of each bearing bedplate (1) is provided with four material bearing boxes (2), a material bearing panel (3), the correcting limit angle plate (5) and a correcting limit stop (6).

8. The automatic correction mechanism of copper-clad plate according to claim 2, characterized in that: the top surface of the second sliding frame (13) is in sliding connection with the bottom of the connecting arm sleeve (8), and the second sliding frame (13) is of a rectangular tubular structure.

9. The automatic correction mechanism of copper-clad plate according to claim 1, characterized in that: two electric hydraulic cylinders (10), an output piston push rod (11), a first sliding frame (12) and a second sliding frame (13) are distributed in each supporting box frame (9), and the two electric hydraulic cylinders (10) are fixed in the opposite directions of the output ends.

10. The automatic correction mechanism of copper-clad plate according to claim 1, characterized in that: every the roof of support tank tower (9) distributes two and connects arm cover (8), and two and connect arm cover (8) and locate the left side and the right side department of support tank tower (9) top surface respectively.

Technical Field

The invention relates to the technical field of copper-clad plate processing, in particular to an automatic correction mechanism of a copper-clad plate.

Background

The whole process of the copper-clad plate is a glass fiber epoxy resin copper-clad plate, which is also called as FR4 copper-clad plate for short. The copper-clad plate is divided into several grades, and the first grade is mainly applied to electronic products such as military industry, communication, computers, digital circuits, industrial instruments and meters, automobile circuits and the like. The second stage is mainly used for common computers, instruments and meters, advanced household appliances and common electronic products. The third-level copper-clad plate is an FR-4 product developed and produced by the company specially for the household appliance industry, computer peripheral products and common electronic products (such as toys, calculators, game machines and the like). The fourth-level plate belongs to the low-end material of an FR-4 copper-clad plate, various performance indexes can still meet the requirements of common household appliances, computers and common electronic products, the price is most competitive, and the cost performance ratio is quite excellent. The fifth-level board is relatively poor in quality stability, is not suitable for circuit board products with large areas, and is generally suitable for products with the size of 100mmX200 mm. During the cutting process of the copper-clad plate, the position of the plate needs to be corrected by matching with a substrate correcting mechanism, so that the cutting is tidy.

At present, the traditional copper-clad plate substrate cutting and correcting mechanism is difficult to automatically correct and adjust the substrate, a manual adjusting mechanism is needed when specifications are converted, the adjusting operation is low in efficiency, the copper-clad plate cutting defect is easily caused, the situation that the copper-clad plate is not cut due to the fact that the copper-clad plate is not corrected in place in the cutting process is difficult to avoid, and the problem that the traditional copper-clad plate cutting mechanism is improperly cut due to the fact that the copper-clad plate is improperly corrected is difficult to effectively solve.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an automatic correction mechanism of a copper-clad plate, which solves the problems in the background technology.

(II) technical scheme

In order to solve the technical problems proposed in the background art, the invention provides the following technical scheme:

an automatic correction mechanism of a copper-clad plate comprises a bearing bedplate, wherein a material bearing box is fixedly arranged on the top surface of the bearing bedplate, a material bearing panel is fixedly arranged on the top of the material bearing box, a motor box is fixedly arranged on the surface of the material bearing box, a correction limiting angle plate is arranged on the top of the material bearing panel, a correction limiting stop block is fixedly arranged on the top of the correction limiting angle plate, a support longitudinal arm is fixedly arranged on the bottom surface of the bearing bedplate, a connecting arm sleeve is movably sleeved on the lower surface of the support longitudinal arm, a support box frame is fixedly sleeved on the surface of the connecting arm sleeve, a transverse support structure is fixedly arranged on the surface of the support box frame, a longitudinal foot post structure is fixedly arranged at the bottom of the support box frame, an electric hydraulic cylinder is arranged inside the support box frame, and an output piston push rod is arranged inside the electric hydraulic cylinder, the end part of the output piston push rod is fixedly provided with a first sliding frame, the bottom of one side surface of the output piston push rod, far away from the first sliding frame, is fixedly provided with a second sliding frame, and the bottom end of the supporting longitudinal arm is fixedly connected with the top surface of the second sliding frame.

Preferably, the top surface and the bottom surface of the material bearing surface plate are provided with a through chute in a penetrating way, the inside of the through chute is connected with a sliding plate frame in a sliding way, the top end of the sliding plate frame is fixedly connected with the bottom surface of the correction limit angle plate, the bottom of the sliding plate frame is fixedly provided with a sliding bush, and the sliding bush is connected in the material bearing box in a sliding way, an internal thread pipe is fixedly embedded in the sliding bush, the internal thread of the internal thread pipe is connected with a thread cross shaft, one end of the thread cross shaft is sleeved with a first bearing, one end of the threaded transverse shaft penetrates through the side wall of the material bearing box through the first bearing and is rotatably installed, the other end of the threaded cross shaft is sleeved with a second bearing, the threaded cross shaft is rotationally connected with the inner wall of the material bearing box through the second bearing, the servo motor is fixedly installed in the motor box, and the output end of the servo motor is connected with the end part of the threaded cross shaft.

Preferably, a cylinder body support is fixedly mounted on the bottom surface of the inner wall of the supporting box frame, and the top of the cylinder body support is fixedly connected with the bottom of the electric hydraulic cylinder.

Preferably, the transverse supporting structure comprises a connecting cross arm, a reinforcing inclined lath is fixedly mounted at the top of the connecting cross arm, and the top end of the reinforcing inclined lath is fixedly connected with the surface of the supporting box frame.

Preferably, the longitudinal leg structure comprises a support column, and the support column is a prism-like structure.

Preferably, the number of the bearing bedplate, the supporting longitudinal arms, the connecting arm sleeves and the supporting box frame is two, the supporting longitudinal arms are of a prismatic structure, and the connecting arm sleeves are of a rectangular frame structure.

Preferably, the correction limit angle plate is of a right-angle plate-shaped structure, and the top surface of each bearing bedplate is provided with four material bearing boxes, a material bearing panel, a correction limit angle plate and a correction limit stop.

Preferably, the top surface of the second sliding frame is in sliding connection with the bottom of the connecting arm sleeve, and the second sliding frame is of a rectangular tubular structure.

Preferably, two electric hydraulic cylinders, an output piston push rod, a first sliding frame and a second sliding frame are uniformly distributed in each supporting box frame, and the two electric hydraulic cylinders are fixed in the opposite directions of the output ends.

Preferably, two connecting arm sleeves are distributed on the top wall of each supporting box frame, and the two connecting arm sleeves are respectively arranged on the left side and the right side of the top surface of each supporting box frame.

(III) advantageous effects

Compared with the prior art, the invention provides an automatic correction mechanism of a copper-clad plate, which has the following beneficial effects:

1. this automatic correction mechanism of copper-clad plate, release or shrink through electric hydraulic cylinder drive output piston push rod, can drive first sliding frame and second sliding frame and slide in the inside of supporting the tank tower, make second sliding frame slide with the linking arm cover mutually, second sliding frame slides and drives promptly and supports the longitudinal arm and slide inside the linking arm cover, thereby make and support the longitudinal arm and remove steadily, and drive the base plate correction check structure removal of its top support, thereby make two rectify spacing scute and rectify the spacing dog and remove, the process of adjusting the structure has been realized automatically promptly, reached and need not manual adjustment correction mechanism and can carry out the effect of adjusting to the base plate correction structure, the efficiency of adjustment operation has been improved, avoided leading to cutting badly, avoided correcting badly and led to the copper-clad plate size to cut improper condition.

2. This copper-clad plate's automatic correction mechanism, bear the weight of the case through setting up four materials at the platen top of bearing, make the spacing scute of correction that its top set up and rectify limit stop and can adjust respectively through its inner structure control, rotate through servo motor drive screw thread cross axle promptly, drive the internal thread pipe and remove on screw thread cross axle surface, sliding bush slides at the material bears the weight of the incasement, sliding frame link up inside the spout and slide, make and rectify spacing scute and rectify limit stop and move steadily, thereby through controlling four spacing scute of correction and rectify limit stop respectively, can carry on spacingly to unqualified panel, reached and improved the effect to panel spare adaptation scope, realized being convenient for finely tune the target of rectifying the structure, it is more efficient to use.

3. This copper-clad plate's automatic correction mechanism through the spacing scute of correction that sets up the right angle form for panel is convenient for put into, has realized the effect of the operation of being convenient for, supports electric hydraulic cylinder through setting up the cylinder body support, makes electric hydraulic cylinder installation fixed more stable, through setting up the support trailing arm sliding connection of prism form in rectangular frame's linking arm cover, makes the activity of sliding of structure more smooth and easy, difficult jamming.

Drawings

FIG. 1 is a side view of the structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a front cross-sectional view of the support box frame structure of the present invention;

FIG. 4 is a front cross-sectional view of the material carrying case structure of the present invention;

FIG. 5 is a side cross-sectional view of the cylinder block support structure of the present invention.

In the figure: 1. a load-bearing platen; 2. a material carrying box; 3. a material carrying panel; 4. a motor case; 5. correcting the limit angle plate; 6. correcting the limit stop; 7. a supporting trailing arm; 8. connecting arm sleeves; 9. supporting the box frame; 10. an electric hydraulic cylinder; 11. an output piston push rod; 12. a first slide frame; 13. a second slide frame; 14. a through chute; 15. a sliding plate frame; 16. a sliding bush; 17. an internally threaded tube; 18. a threaded cross shaft; 19. a first bearing; 20. a second bearing; 21. a servo motor; 22. a cylinder block support; 23. connecting a cross arm; 24. reinforcing the inclined lath; 25. and (4) a support column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.

Referring to fig. 1-5, an automatic correction mechanism for a copper-clad plate comprises a bearing platen 1, a material bearing box 2 is fixedly installed on the top surface of the bearing platen 1, a material bearing panel 3 is fixedly installed on the top of the material bearing box 2, a motor box 4 is fixedly installed on the surface of the material bearing box 2, a correction limit angle plate 5 is arranged on the top of the material bearing panel 3, a correction limit stop 6 is fixedly installed on the top of the correction limit angle plate 5, a support longitudinal arm 7 is fixedly installed on the bottom surface of the bearing platen 1, a connecting arm sleeve 8 is movably sleeved on the lower surface of the support longitudinal arm 7, a support box frame 9 is fixedly sleeved on the surface of the connecting arm sleeve 8, a transverse support structure is fixedly installed on the surface of the support box frame 9, a longitudinal foot post structure is fixedly installed on the bottom of the support box frame 9, an electric hydraulic cylinder 10 is arranged inside the support box frame 9, an output piston push rod 11 is arranged inside the electric hydraulic cylinder 10, a first sliding frame 12 is fixedly arranged at the end part of an output piston push rod 11, a second sliding frame 13 is fixedly arranged at the bottom of one side surface of the first sliding frame 12, which is far away from the output piston push rod 11, the bottom end of a supporting longitudinal arm 7 is fixedly connected with the top surface of the second sliding frame 13, the electric hydraulic cylinder 10 is used for driving the output piston push rod 11 to push out or contract, so that the first sliding frame 12 and the second sliding frame 13 can be driven to slide in the supporting box frame 9, the second sliding frame 13 and a connecting arm sleeve 8 slide mutually, the second sliding frame 13 slides to drive the supporting longitudinal arm 7 to slide in the connecting arm sleeve 8, so that the supporting longitudinal arm 7 stably moves and drives a substrate correcting block structure supported at the top of the supporting longitudinal arm to move, thereby two correcting limit angle plates 5 and correcting limit blocks 6 move, and the process of automatically adjusting the correcting structure is realized, the effect that the substrate correcting structure can be adjusted without manually adjusting the correcting mechanism is achieved, the efficiency of adjusting operation is improved, the copper-clad plate is prevented from being badly cut, and the condition that the copper-clad plate is improperly cut due to poor correction is avoided.

In this embodiment, the top surface and the bottom surface of the material bearing panel 3 are provided with a through chute 14 in a penetrating manner, the inside of the through chute 14 is slidably connected with a sliding plate frame 15, the top end of the sliding plate frame 15 is fixedly connected with the bottom surface of the correction limit angle plate 5, the bottom of the sliding plate frame 15 is fixedly provided with a sliding bush 16, the sliding bush 16 is slidably connected in the material bearing box 2, the inside of the sliding bush 16 is fixedly embedded with an internal threaded pipe 17, the internal thread of the internal threaded pipe 17 is connected with a threaded cross shaft 18, one end of the threaded cross shaft 18 is sleeved with a first bearing 19, one end of the threaded cross shaft 18 is rotatably connected with the side wall of the material bearing box 2 through the first bearing 19, the other end of the threaded cross shaft 18 is sleeved with a second bearing 20, the threaded cross shaft 18 is rotatably connected with the inner wall of the material bearing box 2 through the second bearing 20, the inside of the motor box 4 is fixedly provided with a servo motor 21, the output end of the servo motor 21 is connected with the end part of the threaded transverse shaft 18, four material bearing boxes 2 are arranged at the top of the bearing bedplate 1, so that the correcting limit angle plate 5 and the correcting limit stop 6 arranged at the top part thereof can be respectively adjusted through the control of the internal structure thereof, namely, the servo motor 21 drives the threaded cross shaft 18 to rotate, the internal threaded pipe 17 is driven to move on the surface of the threaded cross shaft 18, the sliding bush 16 slides in the material bearing box 2, the sliding plate frame 15 slides in the through sliding groove 14, so that the correcting limit angle plate 5 and the correcting limit stop 6 move stably, and the four correcting limit angle plates 5 and the correcting limit stop 6 are controlled respectively, can carry on spacingly to unqualified panel, reach the effect that improves to panel spare adaptation scope, realized being convenient for finely tune the target of rectifying the structure, it is more high-efficient to use.

In this embodiment, the bottom surface fixed mounting who supports the inner wall of box tower 9 has cylinder body support 22, and the bottom fixed connection of the top of cylinder body support 22 and electric hydraulic cylinder 10 supports electric hydraulic cylinder 10 through setting up cylinder body support 22 for electric hydraulic cylinder 10 installs fixedly more stably.

In this embodiment, the lateral supporting structure comprises a connecting cross arm 23, a reinforcing inclined strip plate 24 is fixedly mounted on the top of the connecting cross arm 23, and the top end of the reinforcing inclined strip plate 24 is fixedly connected with the surface of the supporting box frame 9.

In this embodiment, the longitudinal pillar structure includes a supporting pillar 25, and the supporting pillar 25 is a prism-shaped structure.

In this embodiment, the number of the bearing platen 1, the supporting longitudinal arms 7, the connecting arm sleeves 8 and the supporting box frame 9 is two, the supporting longitudinal arms 7 are in a prism structure, the connecting arm sleeves 8 are in a rectangular frame structure, and the prism-shaped supporting longitudinal arms 7 are slidably connected in the connecting arm sleeves 8 of the rectangular frame, so that the sliding movement of the structure is smoother and is not easy to be blocked.

In this embodiment, rectify spacing scute 5 and be right angle platelike structure, and every top surface homoenergetic that bears platen 1 distributes four material bearing box 2, material bearing panel 3, rectifies spacing scute 5 and rectifies limit stop 6, through the spacing scute 5 of the correction that sets up the right angle form for panel is convenient for put into, has realized the effect of the operation of being convenient for.

In this embodiment, the top surface of the second sliding frame 13 is slidably connected to the bottom of the connecting arm sleeve 8, and the second sliding frame 13 has a rectangular tubular structure.

In this embodiment, two electric hydraulic cylinders 10, an output piston push rod 11, a first sliding frame 12 and a second sliding frame 13 are all distributed in each supporting box frame 9, and the two electric hydraulic cylinders 10 are fixed in the opposite directions of the output ends.

In this embodiment, two connecting arm sleeves 8 are distributed on the top wall of each supporting box frame 9, and the two connecting arm sleeves 8 are respectively arranged on the left side and the right side of the top surface of the supporting box frame 9.

When in use, the automatic correcting mechanism of the copper-clad plate drives the output piston push rod 11 to push out or contract through the electric hydraulic cylinder 10, so that the first sliding frame 12 and the second sliding frame 13 can be driven to slide in the supporting box frame 9, the second sliding frame 13 and the connecting arm sleeve 8 can slide, the second sliding frame 13 slides to drive the supporting longitudinal arm 7 to slide in the connecting arm sleeve 8, the supporting longitudinal arm 7 can stably move, the substrate correcting block structure supported by the top of the supporting longitudinal arm is driven to move, the two correcting limiting angle plates 5 and the correcting limiting stop blocks 6 can move, the process of automatically adjusting the correcting structure is realized, the effect of adjusting the substrate correcting structure without manually adjusting the correcting mechanism is achieved, the efficiency of adjusting operation is improved, the problem that the copper-clad plate is badly cut due to poor correction is avoided, and the problem that the copper-clad plate is improperly cut due to poor correction is avoided, the four material bearing boxes 2 are arranged at the top of the bearing bedplate 1, so that the correcting limit angle plate 5 and the correcting limit stop 6 arranged at the top of the bearing bedplate can be respectively adjusted through the control of the internal structure, namely the screw thread cross shaft 18 is driven to rotate by the servo motor 21 to drive the internal thread pipe 17 to move on the surface of the screw thread cross shaft 18, the sliding bush 16 slides in the material bearing box 2, the sliding plate frame 15 slides in the through chute 14, so that the correcting limit angle plate 5 and the correcting limit stop 6 stably move, the plate alignment which is not qualified can be limited by respectively controlling the four correcting limit angle plates 5 and the correcting limit stop 6, the effect of improving the adaptation range of the plate pieces is achieved, the aim of finely adjusting the correcting structure is realized, the right angle is more efficient to use, the plate is convenient to put in by arranging the correcting limit angle plates 5, realized the effect convenient to operation, support electric hydraulic cylinder 10 through setting up cylinder body support 22, make electric hydraulic cylinder 10 installation fixed more stable, support trailing arm 7 sliding connection through setting up the prism form in rectangular frame's connection arm cover 8, make the activity of sliding of structure more smooth and easy, difficult jamming, it cuts the aligning gear to be difficult to carry out the automatic correction adjustment to the base plate to have solved present traditional copper-clad plate base plate, need manual guiding mechanism when the conversion specification, the adjustment operation is got up not only inefficiency, and lead to the copper-clad plate to cut badly easily, it leads to cutting the bad condition because the improper condition of copper-clad plate size is being cut to the improper condition of the improper of the copper-clad plate that leads to because of rectifying to the correction of the copper-clad plate in-process to avoid the copper-clad plate to cut effectively to solve traditional correction and cut the mechanism.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.