Detection tool for automobile defrosting decoration strip

Abstract

The utility model discloses a testing fixture for an automobile defrosting decorative strip, which relates to the technical field of automobile defrosting decorative strip detection and comprises a main sliding assembly, and two ends of the main sliding assembly are respectively provided with a first side sliding assembly and a second side sliding assembly. A plurality of overturning assemblies are arranged on one side of the main sliding assembly, and a space used for containing decoration strips is formed between the main sliding assembly and the overturning assemblies. A rack body is arranged below the main sliding assembly; firstly, a to-be-detected decorative strip is placed on the plurality of overturning frameworks, the decorative strip can be fixedly connected with the plurality of overturning frameworks by screwing the plurality of connecting bolts, the plurality of overturning frameworks play a role in supporting the decorative strip and preventing the decorative strip from transversely shifting, and the plurality of supporting plates play a role in supporting the overturning frameworks. The stability of the decorative strip is ensured by ensuring the stability of the overturning framework; the turnover frame is fixed through the positioning handle, the turnover frame can be prevented from rotating and displacing, and therefore the multiple turnover frameworks can be tightly attached all the time, and longitudinal gaps cannot be generated.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile defrosting trim detection, and particularly relates to a fixture for an automobile defrosting trim. Background Technique

[0002] An automobile defrosting trim is a component on an automobile, and it is usually installed at the edge of the front windshield of the automobile or the edges of other vehicle windows. Its main function is to assist the defrosting system to promote the rapid melting and dissipation of ice and frost on the vehicle window. The defrosting trim also plays a certain decorative role in appearance, making the window edge look cleaner and more beautiful.

[0003] Chinese Patent Publication No. CN 206905650 U discloses a trim detection device, which includes a bracket, an operating table, a measuring base, three pressing mechanisms and three auxiliary mechanisms; the bracket includes a frame body and a moving mechanism, the frame body is connected to the operating table, and the moving mechanism is connected to the frame body and away from the operating table; the measuring base includes a base and a detection part, the base is installed on the operating table, the detection part is arranged on the base, and the detection part is provided with an arc-shaped matching part; the pressing mechanism cooperates with the arc-shaped matching part, and the auxiliary mechanism cooperates with the arc-shaped matching part;

[0004] For the above-mentioned trim detection device, multiple pressing mechanisms are used to press and fix the trim on the measuring base; however, when the multiple pressing mechanisms of the above-mentioned trim detection device press the trim, the generated pressure is vertical. For a horizontally arranged trim, the vertical pressure can only ensure that the trim does not move vertically on the measuring base, but cannot prevent the trim from moving horizontally. When encountering shaking or bumping, the trim is very easy to move horizontally, thus affecting the normal progress of the trim detection work and resulting in deviation of the trim detection result. Content of the Utility Model

[0005] The purpose of the utility model is to provide a fixture for an automobile defrosting trim, which can prevent the trim from moving horizontally by the cooperation of a sliding component and a flipping component, and multiple clamp components can prevent the trim from moving vertically, so as to solve the technical problems proposed in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A fixture for an automobile defrosting trim includes a main sliding component, and a first side sliding component and a second side sliding component are respectively arranged at both ends of the main sliding component; a plurality of flipping components are arranged on one side of the main sliding component, and a space for placing the trim is formed between the main sliding component and the flipping components; a frame body is arranged below the main sliding component, and a plurality of clamp components are arranged above the frame body;

[0008] The main sliding assembly described above includes a main skeleton, the bottom of which is fixedly connected to the first connecting frame; the middle of the bottom of the first connecting frame is fixedly connected to the telescopic rod of the main cylinder, and the main cylinder is installed inside the main placement table; a plurality of main pushing plates are evenly and fixedly connected to one side of the main skeleton away from the main cylinder; one end of the main pushing plate away from the main skeleton is slidably connected to the main concave platform, and the top of the main concave platform is fixedly connected to the main cover through bolts; circular holes for the main positioning column to pass through are provided on the main pushing plate, the main concave platform and the main cover; the bottom of the main concave platform is fixedly connected to the top of the main base.

[0009] As a further technical solution of the present utility model, the structures of the first side sliding assembly and the second side sliding assembly are the same; the first side sliding assembly includes a side skeleton, one end of which is attached to one end of the main skeleton; the bottom of the side skeleton is fixedly connected to the top of the connecting column, and the bottom of the connecting column is fixedly connected to the telescopic rod of the side cylinder, and the side cylinder is installed inside the side placement table.

[0010] As a further technical solution of the present utility model, one side of the side skeleton away from the side cylinder is fixedly connected to the L-shaped plate through bolts; one end of the L-shaped plate away from the side skeleton is fixedly connected to the side pushing plate; one end of the side pushing plate away from the L-shaped plate is slidably connected to the side concave platform; the top of the side concave platform is fixedly connected to the side cover through bolts, and circular holes for the side positioning column to pass through are provided on the side pushing plate, the side concave platform and the side cover; the bottom of the side concave platform is fixedly connected to the top of the side base.

[0011] As a further technical solution of the present utility model, the pressing pliers assembly includes a mounting seat, the outside of which is rotatably connected to the second rotating frame and the inside of which is rotatably connected to the first rotating frame; a second connecting frame is fixedly connected to the inside of the second rotating frame, and one end of the second connecting frame away from the second rotating frame is fixedly connected to the first rotating frame; a rubber sleeve is sleeved on one end of the second rotating frame away from the mounting seat, and one end of the first rotating frame away from the mounting seat is fixedly connected to the connecting plate, and a pressing member is fixedly connected to one end of the connecting plate away from the first rotating frame; the bottom of the mounting seat is fixedly connected to the top of the first vertical seat.

[0012] As a further technical solution of the present utility model, the flipping assembly includes a flipping skeleton, one side of which away from the main skeleton is fixedly connected to the T-shaped frame; one end of the T-shaped frame away from the flipping skeleton is fixedly connected to the flipping frame, and one end of the flipping frame away from the T-shaped frame is rotatably connected to the connecting concave platform; circular holes for the positioning handle to pass through are provided in the middle of the connecting concave platform and the flipping frame; the bottom of the connecting concave platform is fixedly connected to the top of the second vertical seat; a plurality of support plates are provided below the flipping skeleton, and the flipping skeleton is fixedly connected to the plurality of support plates through a plurality of connecting bolts respectively.

[0013] As a further technical solution of the present utility model, the frame body includes a top plate, and the bottoms of the main base, the side bases, the first upright seat and the second upright seat are all fixedly connected to the top of the top plate, and the tops of the main placement table and the side placement table are all fixedly connected to the bottom of the top plate; the top plate is provided with a plurality of through grooves for the first connecting frame and the connecting column to move.

[0014] As a further technical solution of the present utility model, a plurality of blocks for fixing a go-no-go gauge are provided on the top of the top plate; the bottom of the top plate is fixedly connected to a profile frame, and universal wheels are installed at the four corners of the bottom of the profile frame.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. In the present utility model, first, the decorative strips to be detected are placed on a plurality of flipping skeletons, and the decorative strips can be fixedly connected to the plurality of flipping skeletons by screwing a plurality of connecting bolts. The plurality of flipping skeletons play a role in supporting the decorative strips to prevent the decorative strips from shifting horizontally. The plurality of support plates play a role in supporting the flipping skeletons, and the stability of the decorative strips is ensured by ensuring the stability of the flipping skeletons; the flipping frame is fixed by using the positioning handle, which can prevent the flipping frame from rotating and displacing, so that the plurality of flipping skeletons are always closely attached without generating longitudinal gaps, ensuring uniform stress on the decorative strips.

[0017] 2. In the present utility model, after the plurality of flipping components fix the decorative strips, the main cylinder drives the main skeleton to move, and the side cylinder drives the side skeleton to move, so that the main skeleton and the side skeleton move synchronously close to the decorative strips and closely attach to the side of the decorative strips away from the flipping skeletons. Cooperating with the plurality of flipping skeletons can clamp the decorative strips, thereby further ensuring the stability of the decorative strips and preventing the decorative strips from shifting horizontally. Compared with manual control, controlling the main skeleton and the side skeleton by cylinders can ensure synchronization when the main skeleton and the side skeleton move, thereby preventing gaps from appearing between the main skeleton and the side skeleton; finally, controlling a plurality of pressing pliers components to press the top of the decorative strips, so that the pressing parts are closely attached to the top of the decorative strips, thereby preventing the decorative strips from moving vertically. Moreover, a rubber block is provided at the bottom of the pressing parts, and no scratches will be generated on the top of the decorative strips when pressing the decorative strips, ensuring the quality of the decorative strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0019] Figure 2 is in the present utility model Figure 1 another perspective view.

[0020] Figure 3 is in the present utility model Figure 1 partial structural schematic diagram.

[0021] Figure 4 is in the present utility modelFigure 3 Another perspective view.

[0022] Figure 5 It is in the present utility model Figure 2 Partial structural schematic diagram.

[0023] Figure 6 It is in the present utility model Figure 5 Another perspective view.

[0024] Figure 7 It is in the present utility model Figure 5 Partial structural schematic diagram.

[0025] Figure 8 It is in the present utility model Figure 8 Bottom view.

[0026] Figure 9 Stereoscopic structural schematic diagram of the main sliding component in the present utility model.

[0027] Figure 10 Stereoscopic structural schematic diagram of the side sliding component in the present utility model.

[0028] Figure 11 It is in the present utility model Figure 5 Partial enlarged view.

[0029] Figure 12 It is in the present utility model Figure 3 Partial enlarged view.

[0030] In the figure: 1 - main sliding component, 2 - first side sliding component, 3 - second side sliding component, 4 - clamping pliers component, 5 - flipping component, 6 - trim strip, 7 - frame body;

[0031] 11 - main skeleton, 12 - first connecting frame, 13 - main cylinder, 14 - main placing table, 15 - main pushing plate, 16 - main concave platform, 17 - main base, 18 - main positioning column, 19 - main cover, 21 - side skeleton, 22 - connecting column, 23 - side cylinder, 24 - side placing table, 25 - L-shaped plate, 26 - side pushing plate, 27 - side concave platform, 28 - side cover, 29 - side positioning column, 20 - side base, 41 - mounting seat, 42 - first rotating frame, 43 - connecting plate, 44 - pressing part, 45 - second rotating frame, 46 - second connecting frame, 47 - rubber sleeve, 48 - first standing seat, 51 - flipping skeleton, 52 - support plate, 53 - connecting bolt, 54 - T-shaped frame, 55 - flipping frame, 56 - connecting concave platform, 57 - positioning handle, 58 - second standing seat, 71 - top plate, 72 - profile frame, 73 - universal wheel, 74 - clamping block, 75 - through groove. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figure 1-12 , in the embodiment of the present invention, a fixture for an automotive defrosting trim strip includes a main sliding assembly 1. Both ends of the main sliding assembly 1 are respectively provided with a side sliding assembly one 2 and a side sliding assembly two 3; a plurality of flipping assemblies 5 are provided on one side of the main sliding assembly 1, and a space for placing the trim strip 6 is provided between the main sliding assembly 1 and the flipping assemblies 5; a frame body 7 is provided below the main sliding assembly 1, and a plurality of pressing pliers assemblies 4 are provided above the frame body 7.

[0034] The main sliding assembly 1 includes a main skeleton 11, and the bottom of the main skeleton 11 is fixedly connected to a connecting frame one 12; the middle of the bottom of the connecting frame one 12 is fixedly connected to the telescopic rod of a main cylinder 13, and the main cylinder 13 is installed inside a main placing table 14; a plurality of main pushing plates 15 are evenly and fixedly connected to the side of the main skeleton 11 away from the main cylinder 13; one end of the main pushing plate 15 away from the main skeleton 11 is slidably connected to a main concave platform 16, and the top of the main concave platform 16 is fixedly connected to a main sealing cover 19 by bolts; round holes for the main positioning posts 18 to pass through are provided on the main pushing plate 15, the main concave platform 16 and the main sealing cover 19; the bottom of the main concave platform 16 is fixedly connected to the top of a main base 17.

[0035] The side sliding assembly one 2 and the side sliding assembly two 3 have the same structure; the side sliding assembly one 2 includes a side skeleton 21, and one end of the side skeleton 21 is attached to one end of the main skeleton 11; the bottom of the side skeleton 21 is fixedly connected to the top of a connecting column 22, and the bottom of the connecting column 22 is fixedly connected to the telescopic rod of a side cylinder 23, and the side cylinder 23 is installed inside a side placing table 24.

[0036] The side of the side skeleton 21 away from the side cylinder 23 is fixedly connected to an L-shaped plate 25 by bolts; one end of the L-shaped plate 25 away from the side skeleton 21 is fixedly connected to a side pushing plate 26; one end of the side pushing plate 26 away from the L-shaped plate 25 is slidably connected to a side concave platform 27; the top of the side concave platform 27 is fixedly connected to a side sealing cover 28 by bolts, and round holes for the side positioning posts 29 to pass through are provided on the side pushing plate 26, the side concave platform 27 and the side sealing cover 28; the bottom of the side concave platform 27 is fixedly connected to the top of a side base 20.

[0037] By adopting the above technical solution, first, the decorative strip 6 to be detected is placed on a plurality of flipping skeletons 51. By screwing a plurality of connecting bolts 53, the decorative strip 6 can be fixedly connected to the plurality of flipping skeletons 51. The plurality of flipping skeletons 51 play a role in supporting the decorative strip 6 to prevent the decorative strip 6 from laterally shifting. The plurality of support plates 52 play a role in supporting the flipping skeletons 51. By ensuring the stability of the flipping skeletons 51, the stability of the decorative strip 6 is ensured; the flipping frame 55 is fixed by using the positioning handle 57, which can prevent the flipping frame 55 from rotating and displacing, so that the plurality of flipping skeletons 51 are always closely attached to each other without generating longitudinal gaps, ensuring that the decorative strip 6 is uniformly stressed.

[0038] In this embodiment, the pressing pliers assembly 4 includes a mounting seat 41. The outer side of the mounting seat 41 is rotatably connected to the second rotating frame 45, and the inner side is rotatably connected to the first rotating frame 42; a second connecting frame 46 is fixedly connected to the inner side of the second rotating frame 45. One end of the second connecting frame 46 away from the second rotating frame 45 is fixedly connected to the first rotating frame 42; a rubber sleeve 47 is sleeved on the end of the second rotating frame 45 away from the mounting seat 41. One end of the first rotating frame 42 away from the mounting seat 41 is fixedly connected to a connecting plate 43, and a pressing member 44 is fixedly connected to one end of the connecting plate 43 away from the first rotating frame 42; the bottom of the mounting seat 41 is fixedly connected to the top of the first vertical seat 48;

[0039] The flipping assembly 5 includes a flipping skeleton 51. One side of the flipping skeleton 51 away from the main skeleton 11 is fixedly connected to a T-shaped frame 54; one end of the T-shaped frame 54 away from the flipping skeleton 51 is fixedly connected to a flipping frame 55. One end of the flipping frame 55 away from the T-shaped frame 54 is rotatably connected to a connecting concave platform 56; circular holes for the positioning handle 57 to pass through are provided in the middle of the connecting concave platform 56 and the flipping frame 55; the bottom of the connecting concave platform 56 is fixedly connected to the top of the second vertical seat 58; a plurality of support plates 52 are provided below the flipping skeleton 51, and the flipping skeleton 51 is fixedly connected to the plurality of support plates 52 respectively through a plurality of connecting bolts 53;

[0040] The frame body 7 includes a top plate 71, and the bottoms of the main base 17, the side base 20, the first vertical seat 48 and the second vertical seat 58 are all fixedly connected to the top of the top plate 71. The tops of the main placing table 14 and the side placing table 24 are all fixedly connected to the bottom of the top plate 71; a plurality of through grooves 75 for the first connecting frame 12 and the connecting column 22 to move are provided on the top plate 71;

[0041] A plurality of blocks 74 for fixing the go-no-go gauge are provided on the top of the top plate 71; the bottom of the top plate 71 is fixedly connected to a profile frame 72, and universal wheels 73 are installed at the four corners of the bottom of the profile frame 72.

[0042] By adopting the above technical solution, after multiple flipping components 5 fix the decorative strip 6, the main cylinder 13 drives the main frame 11 to move, and the side cylinder 23 drives the side frame 21 to move, so that the main frame 11 and the side frame 21 approach the decorative strip 6 synchronously and closely fit the side of the decorative strip 6 away from the flipping frame 51. Cooperating with multiple flipping frames 51 can clamp the decorative strip 6, thereby further ensuring the stability of the decorative strip 6 and preventing the decorative strip 6 from experiencing lateral offset. Compared with manual control, controlling the main frame 11 and the side frame 21 through cylinders can ensure synchronization when the main frame 11 and the side frame 21 move, thereby preventing gaps from appearing between the main frame 11 and the side frame 21. Finally, control multiple pressing pliers assemblies 4 to press the top of the decorative strip 6, so that the pressing member 44 closely fits the top of the decorative strip 6, thereby preventing the decorative strip 6 from experiencing vertical movement. Moreover, a rubber block is provided at the bottom of the pressing member 44, which will not cause scratches on the top of the decorative strip 6 when pressing the decorative strip 6, ensuring the quality of the decorative strip 6.

[0043] The working principle of the present utility model is as follows: First, place the decorative strip 6 to be detected on multiple flipping frames 51. By screwing multiple connecting bolts 53, the decorative strip 6 can be fixedly connected to the multiple flipping frames 51. The multiple flipping frames 51 play a role in supporting the decorative strip 6 and preventing the decorative strip 6 from experiencing lateral offset. The multiple support plates 52 play a role in supporting the flipping frames 51, and the stability of the decorative strip 6 is ensured by ensuring the stability of the flipping frames 51. Use the positioning handle 57 to fix the flipping frame 55, which can prevent the flipping frame 55 from experiencing rotational displacement, so that the multiple flipping frames 51 always closely fit without generating longitudinal gaps, ensuring uniform force on the decorative strip 6.

[0044] After multiple flipping components 5 fix the decorative strip 6, the main cylinder 13 drives the main frame 11 to move, and the side cylinder 23 drives the side frame 21 to move, so that the main frame 11 and the side frame 21 approach the decorative strip 6 synchronously and closely fit the side of the decorative strip 6 away from the flipping frame 51. Cooperating with multiple flipping frames 51 can clamp the decorative strip 6, thereby further ensuring the stability of the decorative strip 6 and preventing the decorative strip 6 from experiencing lateral offset. Compared with manual control, controlling the main frame 11 and the side frame 21 through cylinders can ensure synchronization when the main frame 11 and the side frame 21 move, thereby preventing gaps from appearing between the main frame 11 and the side frame 21. Finally, control multiple pressing pliers assemblies 4 to press the top of the decorative strip 6, so that the pressing member 44 closely fits the top of the decorative strip 6, thereby preventing the decorative strip 6 from experiencing vertical movement. Moreover, a rubber block is provided at the bottom of the pressing member 44, which will not cause scratches on the top of the decorative strip 6 when pressing the decorative strip 6, ensuring the quality of the decorative strip 6.

[0045] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fixture for an automotive defrosting trim strip, characterized in that: It includes a main sliding component (1), with a first side sliding component (2) and a second side sliding component (3) respectively provided at both ends of the main sliding component (1); a plurality of flipping components (5) are provided on one side of the main sliding component (1), and there is a space for placing a decorative strip (6) between the main sliding component (1) and the flipping components (5); a frame body (7) is provided below the main sliding component (1), and a plurality of pressing pliers components (4) are provided above the frame body (7). The said main sliding component (1) includes a main skeleton (11), and the bottom of the main skeleton (11) is fixedly connected to a first connecting frame (12); the middle of the bottom of the first connecting frame (12) is fixedly connected to the telescopic rod of a main cylinder (13), and the main cylinder (13) is installed inside a main placement table (14); a plurality of main pushing plates (15) are evenly and fixedly connected to the side of the main skeleton (11) away from the main cylinder (13); one end of the main pushing plate (15) away from the main skeleton (11) is slidably connected to a main concave platform (16), and the top of the main concave platform (16) is fixedly connected to a main cover (19) by bolts; round holes for a main positioning column (18) to pass through are provided on the main pushing plate (15), the main concave platform (16) and the main cover (19); the bottom of the main concave platform (16) is fixedly connected to the top of a main base (17).

2. The gage for the automotive defrosting trim strip according to claim 1, wherein: The structures of the first side sliding component (2) and the second side sliding component (3) are the same; the first side sliding component (2) includes a side skeleton (21), and one end of the side skeleton (21) is attached to one end of the main skeleton (11); the bottom of the side skeleton (21) is fixedly connected to the top of a connecting column (22), and the bottom of the connecting column (22) is fixedly connected to the telescopic rod of a side cylinder (23), and the side cylinder (23) is installed inside a side placement table (24).

3. The gage for the automotive defrosting trim strip according to claim 2, wherein: One side of the said side skeleton (21) away from the side cylinder (23) is fixedly connected to an L-shaped plate (25) by bolts; one end of the L-shaped plate (25) away from the side skeleton (21) is fixedly connected to a side pushing plate (26); one end of the side pushing plate (26) away from the L-shaped plate (25) is slidably connected to a side concave platform (27); the top of the side concave platform (27) is fixedly connected to a side cover (28) by bolts, and round holes for a side positioning column (29) to pass through are provided on the side pushing plate (26), the side concave platform (27) and the side cover (28); the bottom of the side concave platform (27) is fixedly connected to the top of a side base (20).

4. The inspection tool for the automotive defrosting decorative strip according to claim 3, wherein: The said pressing pliers component (4) includes a mounting seat (41), the outside of the mounting seat (41) is rotatably connected to a second rotating frame (45), and the inside is rotatably connected to a first rotating frame (42); a second connecting frame (46) is fixedly connected to the inside of the second rotating frame (45), and one end of the second connecting frame (46) away from the second rotating frame (45) is fixedly connected to the first rotating frame (42); a rubber sleeve (47) is sleeved on one end of the second rotating frame (45) away from the mounting seat (41), one end of the first rotating frame (42) away from the mounting seat (41) is fixedly connected to a connecting plate (43), and a pressing member (44) is fixedly connected to one end of the connecting plate (43) away from the first rotating frame (42); the bottom of the mounting seat (41) is fixedly connected to the top of a first vertical seat (48).

5. The gage for the automotive defrosting trim strip according to claim 4, wherein: The described flipping component (5) includes a flipping framework (51), and one side of the flipping framework (51) away from the main framework (11) is fixedly connected to a T-shaped frame (54); one end of the T-shaped frame (54) away from the flipping framework (51) is fixedly connected to a flipping frame (55), and one end of the flipping frame (55) away from the T-shaped frame (54) is rotatably connected to a connecting concave platform (56); round holes for a positioning handle (57) to pass through are provided in the middle of both the connecting concave platform (56) and the flipping frame (55); the bottom of the connecting concave platform (56) is fixedly connected to the top of a second vertical seat (58); a plurality of support plates (52) are provided below the flipping framework (51), and the flipping framework (51) is fixedly connected to the plurality of support plates (52) respectively through a plurality of connecting bolts (53).

6. The gage for the automotive defrosting trim strip according to claim 5, wherein: The described frame body (7) includes a top plate (71), and the bottoms of the main base (17), the side base (20), the first vertical seat (48), and the second vertical seat (58) are all fixedly connected to the top of the top plate (71), and the tops of the main placement table (14) and the side placement table (24) are all fixedly connected to the bottom of the top plate (71); the top plate (71) is provided with a plurality of through grooves (75) for the first connecting frame (12) and the connecting column (22) to move through.

7. The checking fixture for the automotive defrosting trim strip according to claim 6, characterized in that: A plurality of blocks (74) for fixing a go-no-go gauge are provided on the top of the top plate (71); the bottom of the top plate (71) is fixedly connected to a profile frame (72), and universal wheels (73) are installed at the four corners of the bottom of the profile frame (72).

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