Adjusting structure and unwinding device for woven fabric processing

Abstract

The utility model discloses an adjusting structure and an unwinding device for woven fabric processing, and relates to the technical field of woven fabric processing, the adjusting structure comprises a connecting unit which comprises a first sliding block, a sleeve rod arranged in the first sliding block, a rotating rod arranged in the sleeve rod, a fixed rod arranged on the outer side of the end part of the rotating rod, and a locking buckle arranged in the fixed rod, and the pressing plate is sleeved on the outer side of the locking buckle. The utility model has the beneficial effects that the rotating rod is matched with the fixed rods, so that the two groups of fixed rods can be driven to be close to each other or far away from each other by turning over the rotating rod; the fixing rod drives the pressing plate to move in the moving process. The pressing plate can be in contact with the end surfaces on the two sides; therefore, the sleeve rods are fixed on the two sides of the supporting piece; and the operation of a worker is better facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of woven fabric processing, in particular to an adjusting structure and an unwinding device for woven fabric processing. Background Art

[0002] Woven fabric processing refers to the use of mechanical equipment to perform various processing on fabrics to improve the quality, performance and appearance of the fabrics; woven fabric processing includes dyeing, finishing, printing, hot stamping, embossing, bleaching, shaping and other processes.

[0003] In the process of machining textile products, an unwinding device is required; the unwinding device is a device in textile machinery, which is used to unwind the textile from the reel or drum and transfer it to the downstream equipment for processing or treatment; in the operation process of the unwinding device, in order to ensure the tension of the fabric and the processing effect, a tensioning device is required to adjust the tightness of the fabric; but during the adjustment process, the existing tensioning device needs to be located on both sides of the equipment and operated simultaneously, which consumes more manpower to a certain extent, reducing the work efficiency of the staff. Utility Model Content

[0004] In view of the above-mentioned prior art problems, the present utility model is proposed.

[0005] The utility model aims to provide an adjustment structure, which aims to solve the problem that the existing tensioning device is inconvenient to adjust.

[0006] To solve the above technical problems, the utility model provides the following technical solutions: an adjustment structure, comprising a connecting unit, including a first slider, a sleeve rod arranged inside the first slider, a rotating rod arranged inside the sleeve rod, a fixed rod arranged on the outside of the end of the rotating rod, a locking buckle arranged inside the fixed rod, and a pressure plate sleeved on the outside of the locking buckle.

[0007] As a preferred solution of the adjustment structure of the utility model, wherein: the number of the sleeve rods is two groups; the two groups of the sleeve rods are symmetrically arranged at both ends of the rotating rod;

[0008] The sleeve rod comprises a slide groove opened on its inner wall, an annular groove arranged on one side of the slide groove, and a first limiting groove arranged at the end of the sleeve rod;

[0009] The rotating rod comprises a gripping portion and connecting rods arranged on both sides of the gripping portion;

[0010] The holding portion includes a limiting plate arranged at an end portion thereof; the limiting plate is matched with the first limiting groove; and the end surface of the limiting plate is in contact with the inner wall of the first limiting groove.

[0011] As a preferred solution of the adjustment structure of the utility model, wherein: the connecting rod includes a rotating disk arranged on its outer wall; the rotating disk is adapted to the annular groove; the end surface of the rotating disk is in contact with the inner wall of the annular groove.

[0012] As a preferred solution of the adjustment structure of the utility model, wherein: the fixing rod comprises a threaded hole opened on its inner wall, a fixing plate arranged on the inner wall of the fixing rod, and a second sliding block arranged on the side wall of the fixing rod;

[0013] There are two groups of connecting rods, each of which includes a threaded rod disposed outside the end of the connecting rod; the spiral directions of the two groups of threaded rods are opposite;

[0014] The threaded hole and the threaded rod are threadably matched.

[0015] As a preferred solution of the adjustment structure of the utility model, wherein: the fixed rod is located inside the sleeve rod; the fixed rod is sleeved on the outside of the rotating rod; the second sliding block is adapted to the sliding groove; the fixed rod and the sleeve rod are slidably connected.

[0016] As a preferred solution of the adjustment structure of the utility model, wherein: the fixing plate includes a through hole penetrating through the wall thickness thereof, and a second limiting groove provided on the inner wall of the fixing plate;

[0017] The locking buckle comprises a spring sleeved on the outside thereof, and a locking plate arranged at the end of the locking buckle;

[0018] The locking plate is matched with the second limiting groove; the locking plate is matched with the through hole.

[0019] As a preferred solution of the adjustment structure of the utility model, wherein: the end of the locking plate passes through the through hole and extends to the outside thereof; the end face of the locking plate contacts the inner wall of the second limiting groove; the end of the locking buckle passes through to the outside of the fixing rod.

[0020] As a preferred solution of the adjustment structure of the utility model, wherein: the locking buckle passes through the pressure plate and extends to the outside thereof; one end of the spring is in contact with the locking buckle; and the other end of the spring is in contact with the end face of the pressure plate.

[0021] The beneficial effects of the adjustment structure of the utility model are as follows: the utility model cooperates with the rotating rod and the fixed rod, and can drive the two groups of fixed rods to move closer to or away from each other by flipping the rotating rod; and the fixed rod drives the pressure plate to move during the movement; so that the pressure plate can contact the end faces on both sides; thereby fixing the sleeve rod on both sides of the support member; and better facilitating the operation of the staff.

[0022] Another object of the utility model is to provide an unwinding device for woven fabric processing, which aims to solve the problem that wrinkles are easily generated in the existing fabric during the unwinding process.

[0023] In order to solve the above technical problems, the utility model also provides the following technical solutions: a reeling device for woven fabric processing, comprising an adjustment structure; and a support unit, comprising a support frame, a guide roller arranged inside the support frame, and a reeling roller arranged on one side of the support frame;

[0024] The support frame includes a waist hole opened on its inner wall; the waist hole includes a slide rail opened on its inner wall;

[0025] The first sliding block is arranged inside the waist hole.

[0026] As a preferred solution of the unwinding device for woven fabric processing of the utility model, wherein: the first slider includes a protrusion arranged on its side wall; the protrusion is adapted to the slide rail; the first slider is slidably connected to the support frame; the sleeve rod is arranged inside the first slider;

[0027] The end surface of the pressing plate contacts the surface of the supporting frame.

[0028] The beneficial effects of the unwinding device for woven fabric processing of the utility model are as follows: the utility model can ensure that the fabric is in a tensioned state during the unwinding process by arranging two sets of connection units at staggered heights and cooperating with the guide rollers; and the device is also simpler and more convenient to operate during the tension adjustment process; thereby ensuring that the fabric processing quality is better during the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a structural schematic diagram of the utility model.

[0031] Figure 2 It is a partial cross-sectional view of the support frame in the utility model.

[0032] Figure 3 It is a schematic diagram of the connection structure between the fixing rod and the supporting frame in the utility model.

[0033] Figure 4 It is a schematic diagram of the explosion structure in the utility model.

[0034] Figure 5 It is a partial cross-sectional view of the sleeve rod in the utility model. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0038] Example 1

[0039] Reference Figure 1 to Figure 5 , is the first embodiment of the utility model, which provides an adjustment structure, including a connecting unit 100, including a first slider 101, a sleeve rod 102 arranged inside the first slider 101, a rotating rod 103 arranged inside the sleeve rod 102, a fixed rod 104 arranged on the outside of the end of the rotating rod 103, a locking buckle 105 arranged inside the fixed rod 104, and a pressure plate 106 sleeved on the outside of the locking buckle 105.

[0040] There are two groups of sleeve rods 102; the two groups of sleeve rods 102 are symmetrically arranged at both ends of the rotating rod 103; the sleeve rod 102 includes a slide groove 102a opened on its inner wall, an annular groove 102b arranged on one side of the slide groove 102a, and a first limiting groove 102c arranged at the end of the sleeve rod 102; the rotating rod 103 includes a gripping portion 103a, and connecting rods 103b arranged on both sides of the gripping portion 103a; the gripping portion 103a includes a limiting plate 103a-1 arranged at its end; the limiting plate 103a-1 is adapted to the first limiting groove 102c; the end face of the limiting plate 103a-1 is in contact with the inner wall of the first limiting groove 102c.

[0041] Preferably, the sleeve rods 102 are symmetrically arranged at both ends of the rotating rod 103, the ends of the gripping portions 103a are in contact with each other, and a complete cylindrical structure is formed between the gripping portions 103a and the two sets of sleeve rods 102, so that the cylindrical rods can transport the fabrics; and the connecting rod 103b is coaxially arranged with the sleeve rod 102; thereby ensuring that the connecting rod 103b can be located inside the sleeve rod 102 and rotate normally; and the interior of 102 is a hollow structure.

[0042] Furthermore, the connecting rod 103b includes a rotating disk 103b-1 arranged on its outer wall; the rotating disk 103b-1 is adapted to the annular groove 102b; and the end surface of the rotating disk 103b-1 is in contact with the inner wall of the annular groove 102b.

[0043] Preferably, the annular groove 102b is opened at the center of the sleeve rod 102, and the rotating disk 103b-1 corresponds to the annular groove 102b; the rotating disk 103b-1 can ensure that the annular groove 103b is located inside the sleeve rod 102 and rotates.

[0044] Furthermore, the fixing rod 104 includes a threaded hole 104a opened on its inner wall, a fixing plate 104b arranged on the inner wall of the fixing rod 104, and a second slider 104c arranged on the side wall of the fixing rod 104; the number of connecting rods 103b is two groups, and the connecting rods 103b include threaded rods 103b-2 arranged on the outer side of the end of the connecting rod 103b; the spiral directions of the two groups of threaded rods 103b-2 are opposite; the threaded hole 104a and the threaded rod 103b-2 are threadedly matched.

[0045] Preferably, the interior of the fixing rod 104 is a hollow structure, and the two groups of threaded holes 104a are respectively adapted to the two groups of threaded rods 103b-2; and the rotation of the gripping portion 103a can drive the threaded rods 103b-2; so that the two groups of threaded holes 104a can be close to or away from each other; thereby driving the threaded holes 104a to move.

[0046] Furthermore, the fixed rod 104 is located inside the sleeve rod 102; the fixed rod 104 is sleeved outside the rotating rod 103; the second sliding block 104c is matched with the sliding groove 102a; the fixed rod 104 and the sleeve rod 102 are slidably connected.

[0047] Preferably, the fixed rod 104 is sleeved on the outside of the rotating rod 103, and the fixed rod 104 is located inside the sleeve rod 102; and the second slider 104c is adapted to the slide groove 102a; under the cooperation between the threaded rod 103b-2 and the threaded hole 104a, the fixed rod 104 can be driven to move along the trajectory of the slide groove 102a as the holding portion 103a rotates; and the set limit plate 103a-1 is adapted to the first limit groove 102c; while ensuring the rotation of the holding portion 103a, the position between the rotating rod 103 and the two sets of sleeve rods 102 remains unchanged.

[0048] When in use, the staff can flip the rotating rod 103, so that the rotating rod 103 rotates to drive the threaded rod 103b-2 to rotate; the threaded rod 103b-2 rotates to cooperate with the second slider 104c to slide between the slide groove 102a; the threaded cooperation between the threaded rod 103b-2 and the threaded hole 104a can drive the fixed rod 104 to move along the trajectory inside the slide groove 102a; as the two groups of fixed rods 104 approach the outer wall of the support frame 201, the fixed rod 104 can drive the pressure plate to approach the outer wall of the support frame 201, so that the first slider 101 can be fixed in a suitable position inside the support frame 201, and as the pressure plates connected to the ends of the two groups of fixed rods 104 contact the outer wall of the support frame 201, the friction force can be used to fix the sleeve rod 102 in the center position of the support frame 201; thereby, the position of the sleeve rod 102 can be fixed.

[0049] In summary, the threaded rod 103b-2 with opposite thread directions at both ends can be rotated by flipping the rotating rod 103; and the two groups of threaded holes 104a are respectively adapted to the two groups of threaded rods 103b-2; thereby, the rotating rod 103 can be flipped and the two groups of fixed rods 104 can be driven to move closer to or away from each other at the same time; the unlocking and fixing of the sleeve rod 102 can be completed more quickly; it is more convenient for the staff to operate; and it is simpler and more convenient to use.

[0050] Example 2

[0051] Reference Figures 1 to 5 , which is the second embodiment of the utility model, includes: the fixing plate 104b includes a through hole 104b-1 that penetrates the wall thickness thereof, and a second limiting groove 104b-2 opened on the inner wall of the fixing plate 104b; the locking buckle 105 includes a spring 105a sleeved on the outside thereof, and a locking plate 105b arranged at the end of the locking buckle 105; the locking plate 105b is adapted to the second limiting groove 104b-2; the locking plate 105b is adapted to the through hole 104b-1.

[0052] Furthermore, the fixed plate 104b is a circular ring structure, and the through hole 104b-1 is set to penetrate the fixed plate 104b, and the through hole 104b-1 and the limiting groove 104b-2 are set perpendicular to each other; and the limiting groove 104b-2 does not penetrate the fixed plate 104b; the cross-section of the locking plate 105b is a truncated cone structure; the largest diameter end of the locking plate 105b contacts the inner wall of the fixed rod 104; and the width of the locking plate 105b is adapted to the through hole 104b-1 and the second limiting groove 104b-2.

[0053] Furthermore, the end of the locking plate 105b passes through the through hole 104b-1 and extends to the outside thereof; the end face of the locking plate 105b contacts the inner wall of the second limiting groove 104b-2; the end of the locking buckle 105 passes through the outside of the fixing rod 104; the locking buckle 105 passes through the pressure plate 106 and extends to the outside thereof; one end of the spring 105a contacts the locking buckle 105; the other end of the spring 105a contacts the end face of the pressure plate 106.

[0054] Preferably, when the pressure plate 106 and the sleeve rod 102 are in a connected state, the end face of the locking plate 105b is located inside the second limiting groove 104b-2; the locking plate 105b is subjected to the rebound force of the spring 105a, so that the locking plate 105b is tightly attached to the inside of the limiting groove 104b-2; the set spring 105a plays the role of connecting the locking buckle 105 and the pressure plate 106.

[0055] When in use, when it is necessary to remove the sleeve rod 102 from the inside of the support frame 201, the locking buckle 105 is pressed; the end of the locking buckle 105 squeezes the spring 105a, and the spring 105a is in a compressed state; as the locking buckle 105 is compressed, the locking plate 105b can be driven to move; the end surface of the locking plate 105b leaves the inside of the second limiting groove 104b-2, and then as the locking plate 105b moves; the end surface of the locking plate 105b is flush with the end surface of the fixing plate 104b, and then the locking buckle 105 is rotated so that the locking plate 105b rotates to the position corresponding to the through hole 104b-1; then, under the action of the rebound force of the spring 105a, the locking plate 105b is driven to leave the side of the fixing plate 104b. Open; thereby the pressing plate 106 can be taken out from the end of the sleeve rod 102; and then the sleeve rod 102 can be taken out from the inside of the support frame 201; when the sleeve rod 102 needs to be installed inside the support frame 201; perform the above steps in reverse order to fix the position between the pressing plate 106 and the fixing rod 104; and then twist the rotating rod 103; so that the rotating rod 103 drives the two groups of fixing rods 104 to move; the two groups of fixing rods 104 approach each other to drive the pressing plate 106 to move; so that the end of the pressing plate 106 can contact the side wall of the support frame 201; as the pressing plate 106 continues to press the side wall of the support frame 201, the position of the pressing plate 106 and the support frame 201 is fixed; thereby fixing the position between the sleeve rod 102 and the support frame 201.

[0056] In summary, the locking buckle can be used to disassemble and connect the position between the pressure plate and the fixed rod; thereby making it easier for the staff to disassemble the sleeve rod from the inside of the support frame; flexibly facilitating the staff to operate; improving work efficiency during use; and reducing the labor burden of the staff.

[0057] Example 3

[0058] Reference Figure 1 to Figure 3 , which is the third embodiment of the utility model, this embodiment further provides a reeling device for woven fabric processing, including a support unit 200, including a support frame 201, a guide roller 202 arranged on the inner side of the support frame 201, and a reeling roller 203 arranged on one side of the support frame 201; the support frame 201 includes a waist hole 201a opened on its inner wall; the waist hole 201a includes a slide rail 201a-1 opened on its inner wall; the first slider 101 is located inside the waist hole 201a.

[0059] Preferably, the support frame 201 is an inverted concave structure; the support frame 201 can support the connection unit 100, the unwinding roller 203 and the guide roller 202; and the two groups of connection units 100 are arranged on both sides of the guide roller 202, and the two groups of connection units 100 are arranged at different upper and lower positions of the support frame 201; and the first slider 101 is adapted to the waist hole 201a; the first slider 101 slides inside the waist hole 201a; and the protrusion 101a is adapted to the slide rail 201a-1; and the slide rail 201a-1 can limit the protrusion 101a.

[0060] Furthermore, the first slider 101 includes a protrusion 101a arranged on its side wall; the protrusion 101a is adapted to the slide rail 201a-1; the first slider 101 is slidingly connected to the support frame 201; the sleeve rod 102 is arranged on the inner side of the first slider 101; and the end face of the pressure plate 106 is in contact with the surface of the support frame 201.

[0061] Preferably, the sleeve rod 102 is interference fit with the first slider 101, and the sleeve rod 102 is sleeved inside the first slider 101; the first slider 101 slides inside the waist hole 201a, so that the first slider 101 can drive the sleeve rod 102 to slide; as the sleeve rod 102 slides, the position between the sleeve rod and the support frame 201 can be adjusted; and the guide roller 202 is fixed on the inner side of the support frame 201; the two groups of first sliders 101 can be adjusted to each other, so as to achieve the purpose of adjusting the tension of the fabric; as the rotating rod 103 rotates, the pressure plate 106 can be driven to contact the side wall of the support frame 201, so as to fix the position of 102 and the support frame 201.

[0062] When in use, the staff places the rolled fabric outside the unwinding roller 203; then one end of the fabric passes through the first group of connecting units 100 in sequence, then passes through the guide roller 202 upward, and then passes through another group of connecting units 100 downward; then the fabric is in a tensioned state; during the process of unwinding the fabric, the fabric becomes loose, at this time, it is necessary to pull the rotating rod 103, so that the rotating rod 103 drives the fixed rod 104 to rotate; thereby making the end face of the pressing plate 106 away from the support frame 201; then the sleeve rod 102 can be slid; so that the first slider 101 moves inside the waist hole 201a; as the first slider 101 slides, the sleeve rod 102 moves inside the waist hole 201a; thereby, the position of the sleeve rod 102 inside the support frame 201 can be adjusted; when adjusted to a suitable position, the rotating rod 103 is pulled in the opposite direction, so that the end surface of the pressure plate 106 contacts the side wall of the support frame 201, thereby fixing the position between the sleeve rod 102 and the support frame 201.

[0063] In summary, the utility model can ensure that the fabric is in a tensioned state during the unwinding process by setting two sets of connection units at staggered heights and cooperating with the guide rollers; and the device is also simpler and more convenient to operate during the tension adjustment process, thereby ensuring better processing quality of the fabric during the processing.

[0064] It is important to note that the above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A regulating structure, characterized in that: include, The connecting unit (100) comprises a first slider (101), a sleeve rod (102) arranged inside the first slider (101), a rotating rod (103) arranged inside the sleeve rod (102), a fixed rod (104) arranged outside the end of the rotating rod (103), a locking buckle (105) arranged inside the fixed rod (104), and a pressure plate (106) sleeved on the outside of the locking buckle (105).

2. The adjustment structure according to claim 1, characterized in that: The number of the sleeve rods (102) is two groups; the two groups of sleeve rods (102) are symmetrically arranged at two ends of the rotating rod (103); The sleeve rod (102) comprises a slide groove (102a) opened on the inner wall thereof, an annular groove (102b) arranged on one side of the slide groove (102a), and a first limiting groove (102c) arranged at the end of the sleeve rod (102); The rotating rod (103) comprises a gripping portion (103a) and connecting rods (103b) arranged on both sides of the gripping portion (103a); The holding portion (103a) comprises a limiting plate (103a-1) arranged at an end thereof; the limiting plate (103a-1) is adapted to the first limiting groove (102c); and the end surface of the limiting plate (103a-1) is in contact with the inner wall of the first limiting groove (102c).

3. The adjustment structure according to claim 2, characterized in that: The connecting rod (103b) comprises a rotating disk (103b-1) arranged on its outer wall; the rotating disk (103b-1) is adapted to the annular groove (102b); and the end surface of the rotating disk (103b-1) is in contact with the inner wall of the annular groove (102b).

4. The adjustment structure according to claim 3, characterized in that: The fixing rod (104) comprises a threaded hole (104a) opened on the inner wall thereof, a fixing plate (104b) arranged on the inner wall of the fixing rod (104), and a second sliding block (104c) arranged on the side wall of the fixing rod (104); The number of the connecting rods (103b) is two groups, and the connecting rods (103b) include threaded rods (103b-2) arranged outside the ends of the connecting rods (103b); the spiral directions of the two groups of threaded rods (103b-2) are opposite; The threaded hole (104a) and the threaded rod (103b-2) are threadably matched.

5. The adjustment structure according to claim 4, characterized in that: The fixed rod (104) is located inside the sleeve rod (102); the fixed rod (104) is sleeved on the outside of the rotating rod (103); the second sliding block (104c) is matched with the sliding groove (102a); and the fixed rod (104) and the sleeve rod (102) are slidably connected.

6. The adjustment structure according to claim 5, characterized in that: The fixing plate (104b) comprises a through hole (104b-1) penetrating through the thickness of the fixing plate (104b), and a second limiting groove (104b-2) formed on the inner wall of the fixing plate (104b); The locking buckle (105) comprises a spring (105a) sleeved on the outside thereof, and a locking plate (105b) arranged at the end of the locking buckle (105); The locking plate (105b) is matched with the second limiting groove (104b-2); and the locking plate (105b) is matched with the through hole (104b-1).

7. The adjustment structure according to claim 6, characterized in that: The end of the locking plate (105b) passes through the through hole (104b-1) and extends to the outside thereof; the end surface of the locking plate (105b) contacts the inner wall of the second limiting groove (104b-2); and the end of the locking buckle (105) passes through the outside of the fixing rod (104).

8. The adjustment structure according to claim 7, characterized in that: The locking buckle (105) passes through the pressure plate (106) and extends to the outside thereof; one end of the spring (105a) is in contact with the locking buckle (105); and the other end of the spring (105a) is in contact with the end surface of the pressure plate (106).

9. A reeling device for woven fabric processing, characterized in that: comprising the regulating structure according to any one of claims 1 to 8; and A support unit (200) comprising a support frame (201), a guide roller (202) arranged on the inner side of the support frame (201), and an unwinding roller (203) arranged on one side of the support frame (201); The support frame (201) comprises a waist hole (201a) opened on its inner wall; the waist hole (201a) comprises a slide rail (201a-1) opened on its inner wall; The first sliding block (101) is disposed inside the waist hole (201a).

10. The unwinding device for woven fabric processing according to claim 9, characterized in that: The first sliding block (101) comprises a protrusion (101a) arranged on its side wall; the protrusion (101a) is adapted to the sliding rail (201a-1); the first sliding block (101) is slidably connected to the support frame (201); the sleeve rod (102) is arranged inside the first sliding block (101); The end surface of the pressing plate (106) is in contact with the surface of the supporting frame (201).

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