Carrier tape tensioning mechanism and carrier tape conveying device

Abstract

The present application is applicable to the field of tape braiding technology, and provides a carrier tape tensioning mechanism, including: a support assembly; a driving assembly disposed on the support assembly; a carrier tape wheel connected to the output end of the driving assembly and rotatably disposed on the support assembly, and the carrier tape wheel can drive the carrier tape to move under the drive of the driving assembly; a clamping assembly includes a clamping wheel, which is rotatably disposed on the support assembly, and the clamping wheel is used to press against the opposite sides of the carrier tape with the carrier tape wheel respectively so that the carrier tape is always in a tightened state during the movement. The present application also provides a carrier tape conveying device, including a carrier tape tensioning mechanism. The carrier tape wheel is driven to rotate by the driving assembly so that the carrier tape wheel can transport the carrier tape, and the clamping assembly and the carrier tape wheel are respectively pressed on the opposite sides of the carrier tape, which are used to clamp the carrier tape, so that the carrier tape is always in a tightened state during the movement, avoiding the carrier tape from being loosened, and increasing the speed of electronic components entering the carrier tape and the carrier tape transportation.

Description

Technical Field

[0001] The present invention belongs to the technical field of tape braiding, and more specifically, relates to a carrier tape tightening mechanism and a carrier tape conveying device. Background Art

[0002] After the electronic components are manufactured and have undergone inspections such as direction identification, reversing, electrical parameter testing, surface marking, and visual inspection of the pins of the electronic components, they need to be loaded into carrier tapes for the next step.

[0003] However, the carrier tape is prone to loosening during the process of loading electronic components. The loose state of the carrier tape can easily reduce the speed of the carrier tape during transportation and the speed of loading conductor components into the carrier tape, thereby affecting subsequent work and reducing the production efficiency of electronic components. Summary of the invention

[0004] The object of the present invention is to provide a carrier tape tightening mechanism, aiming to solve the technical problem in the prior art that the carrier tape is prone to become loose during loading, thereby affecting the production efficiency of electronic components.

[0005] In order to solve the above problems, an embodiment of the present invention provides a carrier tape tightening mechanism, comprising:

[0006] Support components;

[0007] A driving assembly, disposed on the supporting assembly;

[0008] A tape-carrying wheel connected to the output end of the driving assembly and rotatably disposed on the supporting assembly, wherein the tape-carrying wheel can drive the carrier tape to move under the drive of the driving assembly;

[0009] The clamping assembly comprises a clamping wheel which is rotatably arranged on the supporting assembly and is used to press against opposite sides of the carrier belt together with the carrier belt wheel so that the carrier belt is always in a taut state during movement.

[0010] Furthermore, the support assembly includes a first support frame and a second support frame connected to the first support frame, the tape-carrying wheel is rotatably disposed on the first support frame, and the pressure wheel is rotatably disposed on the second support frame.

[0011] Furthermore, the first support frame is recessed with a first slide groove and a second slide groove which are spaced apart from each other, and the tape carrier wheel is rotatably disposed in the first slide groove and can rotate the tape carrier out to slide in the second slide groove.

[0012] Furthermore, the first support frame is rotatably disposed on the second support frame, an elastic member is abutted between the first support frame and the second support frame, and the elastic member can pull the second support frame to rotate to adjust the pressing force applied by the pressing wheel to the carrier tape.

[0013] Furthermore, the first support frame is provided with a groove, the elastic member abuts between one end of the second support frame and the groove, the first support frame is provided with a mounting seat, and the other end of the second support frame is rotatably connected to the mounting seat via a first rotating shaft.

[0014] Furthermore, a handle is protruding from the second support frame, and the handle can be pulled to rotate the second support frame relative to the first support frame.

[0015] Furthermore, the clamping assembly also includes a second rotating shaft disposed on the second support frame and located above the tape-carrying wheel, and the clamping wheel is rotatably sleeved on the second rotating shaft via a bearing.

[0016] Furthermore, the clamping assembly also includes a limiting shaft, which is fixed on the second support frame and at least partially extends above the second slide groove, and the carrier belt is slidably disposed between the limiting shaft and the carrier belt wheel.

[0017] Furthermore, the driving assembly comprises:

[0018] Driving parts;

[0019] A first synchronous wheel, rotatably disposed on one side of the first support frame, the first synchronous wheel being connected to the output shaft of the driving member;

[0020] The second synchronous wheel is rotatably arranged on the same side of the first support frame as the first synchronous wheel and is connected to the first synchronous wheel through a synchronous belt. The second synchronous wheel is rotatably connected to the tape carrier wheel through a driving shaft.

[0021] The beneficial effect of the carrier tape tensioning mechanism provided by the present invention is that: compared with the prior art, the present invention drives the carrier tape wheel to rotate through the driving component, so that the carrier tape wheel can realize the transportation of the carrier tape, and the clamping component and the carrier tape wheel are respectively pressed on the opposite sides of the carrier tape to clamp the carrier tape, so that the carrier tape is always in a tight state during the movement, avoiding the loosening of the carrier tape, and improving the speed of electronic components entering the carrier tape and the transportation of the carrier tape; and the clamping wheel can rotate and clamp on the carrier tape wheel, so as to clamp the carrier tape and avoid the problem of the carrier tape running off.

[0022] The present invention also provides a carrier tape conveying device, comprising any of the carrier tape tightening mechanisms described above.

[0023] The carrier tape conveying device of the present invention adopts the above-mentioned setting of the carrier tape tensioning mechanism, so that the carrier tape is in a tensioned state during transportation, avoiding the carrier tape from becoming loose, thereby improving the speed of electronic components being loaded into the carrier tape and the speed of carrier tape transportation; and the clamping wheel can rotate and press on the top of the carrier tape wheel, which can clamp the carrier tape and avoid the problem of the carrier tape running off. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 Schematic diagram of the three-dimensional structure of the carrier tape tensioning mechanism provided in an embodiment of the present invention Figure 1 ;

[0026] Figure 2 Schematic diagram of the three-dimensional structure of the carrier tape tensioning mechanism provided in an embodiment of the present invention Figure 2 ;

[0027] Figure 3 for Figure 1 Exploded diagram of

[0028] Figure 4 A schematic diagram of the three-dimensional structure of a first support frame of a carrier tape tightening mechanism provided in an embodiment of the present invention;

[0029] Figure 5 An exploded view of a pressing assembly of a carrier tape tensioning mechanism provided in an embodiment of the present invention;

[0030] Figure 6 A partial exploded view of a driving assembly of a carrier tape tensioning mechanism provided in an embodiment of the present invention.

[0031] Among them, the reference numerals in the figure are:

[0032] 100-carrier tensioning mechanism; 200-electronic components; 1-driving assembly; 2-supporting assembly; 3-carrier wheel; 4-pressing assembly; 5-carrier; 6-elastic member; 11-driving member; 12-first synchronous wheel; 13-second synchronous wheel; 14-synchronous belt; 15-driving shaft; 16-first locking member; 17 wheel key; 21-first supporting frame; 22-second supporting frame; 23-third supporting frame; 24-second locking member; 25-side panel; 26-handle; 27-first rotating shaft; 28-elastic pin; 41-pressing wheel; 42-second rotating shaft; 43-bearing; 44-bearing pad; 45-limiting shaft; 111-output shaft; 211-first slide groove; 212-second slide groove; 213-mounting seat; 214-rotating groove; 231-through hole. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Please also read Figures 1 to 3 The carrier tape tensioning mechanism 100 provided in the embodiment of the present invention includes a driving component 1, a supporting component 2, a carrier tape wheel 3 and a clamping component 4, and is applied in the field of tape braiding technology to solve the technical problem in the prior art that the carrier tape is prone to become loose during loading, thereby affecting the production efficiency of the electronic components 200.

[0038] Specifically, the support assembly 2 is used to support the drive assembly 1 and the carrier wheel 3; the carrier wheel 3 is connected to the output end of the drive assembly 1, and the carrier wheel 3 can rotate on the support assembly 2 under the drive of the drive assembly 1, and the carrier wheel 3 can rotate under the drive of the drive assembly 1 and drive the carrier tape 5 to move; the clamping assembly 4 includes a clamping wheel 41, which is rotatably arranged on the support assembly 2, and the clamping wheel 41 is used to press against the opposite sides of the carrier tape 5 with the carrier wheel 3, so that the carrier tape 5 is always in a taut state during the movement. The carrier wheel 3 rotates under the drive of the driving component 1. When rotating, the carrier wheel 3 can drive the carrier belt 5 to move. The pressure wheel 41 presses the carrier belt 5, that is, the carrier belt 5 moves between the carrier wheel 3 and the pressure wheel 41. The friction between the carrier wheel 3 and the pressure wheel 41 can tighten the carrier belt 5 in transportation. While the carrier wheel 3 drives the carrier belt 5 to move, the carrier belt 5 contacts the pressure wheel 41 to make the pressure wheel 41 rotate, thereby achieving the tightening effect of the carrier belt 5.

[0039] In the embodiment of the present invention, the driving component 1 drives the carrier wheel 3 to rotate so that the carrier wheel 3 can transport the carrier tape 5, and the clamping component 4 and the carrier wheel 3 are respectively pressed on the opposite sides of the carrier tape 5 to clamp the carrier tape 5, so that the carrier tape 5 is always in a taut state during the movement, avoiding the relaxation of the carrier tape 5, thereby increasing the speed of electronic components 200 being loaded into the carrier tape 5 and the transportation of the carrier tape 5; and the clamping wheel 41 can rotate and clamp on the carrier wheel 3, so as to clamp the carrier tape 5 and avoid the problem of the carrier tape 5 running away.

[0040] Specifically, the carrier tape 5 is used to carry the electronic components 200 , which are semiconductor devices or other electronic components 200 .

[0041] Specifically, in this embodiment, the driving component 1 can be set as a motor, and the output shaft 111 of the motor is directly connected to the carrier wheel 3. The motor can directly drive the carrier wheel 3 to rotate to achieve the movement of the carrier 5. While the carrier 5 moves, it abuts between the carrier wheel 3 and the clamping wheel 41, thereby driving the clamping wheel 41 to rotate. The clamping wheel 41 and the carrier wheel 3 cooperate with each other to achieve the tightening effect of the carrier 5. Of course, the motor here is set as a stepper motor 11 but it is not the only limitation.

[0042] Please also refer to Figure 1 and Figure 3In this embodiment, the support assembly 2 includes a first support frame 21 and a second support frame 22. The second support frame 22 is arranged on one side of the first support frame 21 and at least partially extends above the first support frame 21. The carrier wheel 3 is rotatably arranged on the first support frame 21, and the pressure wheel 41 is rotatably connected to the second support frame 22 so that the pressure wheel 41 is pressed above the carrier wheel 3.

[0043] Specifically, the second support frame 22 is configured as an "L"-shaped structure, one end of the second support frame 22 is vertically arranged and connected to one side of the first support frame 21, the other end of the second support frame 22 is horizontally arranged and located at the top of the first support frame 21, the pressure wheel 41 is rotatably arranged at the other end of the second support frame 22, and the first support frame 21 is fixed to the top of the motor.

[0044] Please also refer to Figure 1 and Figure 4 In this embodiment, a first slide groove 211 and a second slide groove 212 are recessed on the first support frame 21. The first slide groove 211 and the second slide groove 212 are arranged at intervals and connected to each other. The second slide groove 212 extends from the tangential direction of the first slide groove 211. The carrier wheel 3 is driven by the driving component 1 to rotate in the first slide groove 211, and when the carrier wheel 3 rotates, the carrier belt 5 can be slid into the second slide groove 212.

[0045] Specifically, the first slide groove 211 and the second slide groove 212 are both configured as grooves, and are formed by the top of the first support frame 21 being recessed. The first slide groove 211 is configured as an arc-shaped groove to match the shape of the carrier wheel 3, and the second slide groove 212 is configured as a flat groove to match the shape of the carrier tape 5.

[0046] Please also refer to Figure 1 and Figure 3 In this embodiment, the first support frame 21 is rotatably arranged on the second support frame 22, and an elastic member 6 is abutted between the first support frame 21 and the second support frame 22. The elastic member 6 can pull the second support frame 22 to rotate relative to the first support frame 21. The rotation between the second support frame 22 and the first support frame 21 can adjust the distance between the part of the second support frame 22 located at the top of the first support frame 21 and the first support frame 21, thereby adjusting the height of the clamping wheel 41, and then adjusting the clamping force applied by the clamping wheel 41 to the carrier tape 5 to prevent the clamping wheel 41 from crushing the carrier tape 5 or the carrier wheel 3.

[0047] Please also refer to Figure 1 and Figure 3In this embodiment, a groove (not shown) and a mounting seat 213 are provided on the first support frame 21, and the elastic member 6 abuts between one end of the second support frame 22 and the groove, and the other end of the second support frame 22 is rotatably connected to the mounting seat 213. Specifically, one end of the second support frame 22 is arranged at one side of the first support frame 21, and the other end of the second support frame 22 is located above the first support frame 21. One end of the second support frame 22 is penetrated by a second locking member 24, and the elastic member 6 abuts between the inner wall of the groove and the second locking member 24, that is, the two ends of the elastic member 6 are respectively connected to one side of the first support frame 21 and one end of the second support frame 22, thereby realizing the connection between the first support frame 21 and the second support frame 22. When resetting, the elastic member 6 can tighten the distance between the side of the first support frame 21 and one end of the second support frame 22, so that the other end of the second support frame 22 rotates around the first support frame 21, and the distance between one end of the top of the second support frame 22 and the first support frame 21 can be adjusted, thereby appropriately adjusting the distance between the clamping wheel 41 and the carrier wheel 3.

[0048] Specifically, in the present embodiment, the elastic member 6 is configured as a tension spring, a spring or other elastic structure, which is not limited here.

[0049] For details, please refer to Figure 3 and Figure 4 In this embodiment, the mounting seat 213 is protruded from the top 3 of the first support frame 21, the mounting seat 213 and the second slide groove 212 are located on both sides of the second support frame 22, and a rotating groove 214 is opened on the mounting seat 213. The rotating groove 214 and the other end of the second support frame 22 are rotatably connected through the first rotating shaft 27, and bearings 43 are abutted between the outer wall of the first rotating shaft 27 and the inner wall of the rotating groove 214, and between the outer wall of the first rotating shaft 27 and the second support frame 22, thereby realizing relative rotation between the second support frame 22 and the mounting seat 213.

[0050] For details, please refer to Figure 1 and Figure 3 In this embodiment, an elastic pin 28 is provided on the side of the top of the second support frame 22 facing the mounting seat 213, and the elastic pin 28 abuts against one side of the mounting seat 213, and is used to limit the second support frame 22 when the second support frame 22 rotates relative to the mounting seat 213, so as to prevent the second support frame 22 from rotating too much and causing damage to the carrier belt 5 or the carrier wheel 3.

[0051] For further information, see Figure 1 In this embodiment, a handle 26 is protruding from the top of the second support frame 22 , and the handle 26 can be pulled to rotate the second support frame 22 relative to the first support frame 21 , thereby adjusting the height of the pressure wheel 41 .

[0052] For further information, see Figure 3 In this embodiment, the clamping assembly 4 also includes a second rotating shaft 42 arranged on the first support frame 21. The second rotating shaft 42 is located at the top of the carrier wheel 3 and at least partially extends above the first slide groove 211. The clamping wheel 41 is rotatably sleeved on the second rotating shaft 42 through a bearing 43.

[0053] For details, please refer to Figure 3 and Figure 5 One end of the second rotating shaft 42 is fixed to the other end of the second support frame 22, and the second rotating shaft 42 at least partially extends from the second support frame 22 to above the first slide groove 211, the pressure wheel 41 is rotatably sleeved on the second rotating shaft 42, and a bearing 43 is abutted between the outer wall of the second rotating shaft 42 and the inner wall of the pressure wheel 41, so that the pressure wheel 41 can rotate, and a bearing pad 44 is fixed to the other end of the second rotating shaft 42 for fixing the bearing 43.

[0054] Please also refer to Figure 1 and Figure 5 In this embodiment, the clamping assembly 4 also includes a limiting shaft 45, which is fixed on the top of the second support frame 22 and at least partially extends above the second slide groove 212. The carrier belt 5 is slidably arranged between the limiting shaft 45 and the carrier belt wheel 3. The limiting shaft is used to limit the carrier belt 5 conveyed by the carrier belt wheel 3 to prevent the carrier belt 5 from warping up when moving.

[0055] Please also refer to Figures 3 to 6 In this embodiment, the driving assembly 1 includes a driving member 11, a first synchronous wheel 12 and a second synchronous wheel 13. Specifically, the driving member 11 is provided with a stepping motor 11 or other motors, which are not limited here. The first synchronous wheel 12 is rotatably arranged on one side of the first support frame 21, and the first synchronous wheel 12 is connected to the output shaft 111 of the driving member 11; the second synchronous wheel 13 is rotatably arranged on the same side of the first support frame 21 as the first synchronous wheel 12, and is connected to the first synchronous wheel 12 through a synchronous belt 14, and the second synchronous wheel 13 is rotatably connected to the carrier wheel 3 through a driving shaft 15. The driving member 11 can drive the first synchronous wheel 12 to rotate, and the second synchronous wheel 13 rotates under the drive of the first synchronous wheel 12, thereby driving the carrier wheel 3 to rotate, so that the carrier wheel 3 drives the carrier 5 to move.

[0056] Specifically, see Figure 4 and Figure 6The first synchronous wheel 12 is located on the side of the first support frame 21 opposite to the second slide groove 212. The output shaft 111 of the driving member 11 is connected to the first synchronous wheel 12 and locked by the first locking member 16. The driving member 11 can drive the first synchronous wheel 12 to rotate. The second synchronous wheel 13 and the first synchronous wheel 12 are located on the same side of the first support frame 21. The second synchronous wheel 13 is connected to the first synchronous wheel 12 through a synchronous belt 14. The rotation of the first synchronous wheel 12 can drive the synchronous belt 14 to rotate, thereby realizing the rotation of the second synchronous wheel 13. Specifically, the first support frame 21 is provided with a through slot (not shown) connected to the first slide slot 211, the driving shaft 15 extends from one end of the through slot into and out of the first slide slot 211, the second synchronous wheel 13 is sleeved on one end of the driving shaft 15 and locked by the first locking member 16, the other end of the driving shaft 15 extends to the first slide slot 211, and the tape-carrying wheel 3 is sleeved on the other end of the driving shaft 15, one end of the first slide slot 211 is blocked with a side plate 25, and the other end of the driving shaft 15 is connected to the side plate 25 through a bearing 43. The second synchronous wheel 13 can drive the driving shaft 15 to rotate, thereby realizing the rotation of the tape-carrying wheel 3.

[0057] The driving shaft 15 is provided with a wheel key 17 , which is a flat key and is not limited to a single one.

[0058] For details, please refer to Figures 1 to 3 In this embodiment, the support assembly 2 further includes a third support frame 23, the driving member 11 is fixed to one side of the third support frame 23, the third support frame 23 is provided with a through hole 231, the output shaft 111 of the driving member 11 passes through the through hole 231 and is connected to the first synchronous wheel 12. The first support frame 21 and the second support frame 22 are both arranged on the top of the third support frame 23.

[0059] The embodiment of the present invention further provides a carrier tape conveying device, including a carrier tape tightening mechanism 100. The carrier tape tightening mechanism 100 here is the same as the above-mentioned carrier tape tightening mechanism 100, and will not be described in detail here.

[0060] The carrier tape conveying device of the present invention adopts the above-mentioned setting of the carrier tape tensioning mechanism 100, so that the carrier tape 5 is in a tensioned state during transportation, avoiding the carrier tape 5 from becoming loose, thereby increasing the speed of electronic components 200 being loaded into the carrier tape 5 and the speed of transporting the carrier tape 5; and the clamping wheel 41 can rotate and press on the top of the carrier tape wheel 3, which can clamp the carrier tape 5 and avoid the problem of the carrier tape 5 running off.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A carrier tape tensioning mechanism, characterized in that: include: Support components; A driving assembly, disposed on the supporting assembly; A tape-carrying wheel connected to the output end of the driving assembly and rotatably disposed on the supporting assembly, wherein the tape-carrying wheel can drive the carrier tape to move under the drive of the driving assembly; A clamping assembly, comprising a clamping wheel, the clamping wheel being rotatably disposed on the supporting assembly, the clamping wheel being used to respectively press against opposite sides of the carrier tape with the carrier tape wheel so that the carrier tape is always in a taut state during movement; The support assembly comprises a first support frame and a second support frame connected to the first support frame, the belt-carrying wheel is rotatably arranged on the first support frame, and the pressing wheel is rotatably arranged on the second support frame; the first support frame is recessed with a first slide groove and a second slide groove which are arranged at an interval, the first slide groove and the second slide groove are arranged at an interval and are connected to each other, and the second slide groove extends out from the tangential direction of the first slide groove, the belt-carrying wheel is rotatably arranged in the first slide groove and can rotate the belt out to be slidable in the second slide groove; the pressing assembly also includes a limiting shaft, which is fixed to the second support frame and at least partially extends above the second slide groove, the belt is slidably arranged between the limiting shaft and the belt-carrying wheel, and the limiting shaft is used to limit the belt conveyed by the belt-carrying wheel, and the limiting shaft does not press against the belt; The first support frame is rotatably disposed on the second support frame, an elastic member is abutted between the first support frame and the second support frame, and the elastic member can pull the second support frame to rotate to adjust the pressing force applied by the pressing wheel to the carrier tape; The first support frame is provided with a groove, the elastic member abuts between one end of the second support frame and the groove, the first support frame is provided with a mounting seat, and the other end of the second support frame is rotatably connected to the mounting seat through a first rotating shaft.

2. The carrier tape tensioning mechanism according to claim 1, characterized in that: A handle is protruding from the second support frame, and the handle can be pulled to allow the second support frame to rotate relative to the first support frame.

3. The carrier tape tensioning mechanism according to claim 1, characterized in that: The clamping assembly also includes a second rotating shaft which is arranged on the second supporting frame and located above the tape-carrying wheel. The clamping wheel is rotatably sleeved on the second rotating shaft via a bearing.

4. The carrier tape tensioning mechanism according to claim 1, characterized in that: The drive assembly comprises: Driving parts; A first synchronous wheel, rotatably disposed on one side of the first support frame, the first synchronous wheel being connected to the output shaft of the driving member; The second synchronous wheel is rotatably arranged on the same side of the first support frame as the first synchronous wheel and is connected to the first synchronous wheel through a synchronous belt. The second synchronous wheel is rotatably connected to the tape carrier wheel through a driving shaft.

5. A carrier belt conveyor, characterized in that: It comprises a carrier tape tightening mechanism as described in any one of claims 1 to 4.

Images