Simple paving device for glue line masking paper

By designing a simple laying device for glue-stitching textured paper including support frame, press roller, guide wheel, rotating shaft, left rotating dial and right rotating dial, the problem of cumbersome laying of glue-stitching textured paper in exterior wall decoration is solved, and the construction quality and efficiency are improved.

CN222835301UActive Publication Date: 2025-05-06CHINA CONSTR EIGHT ENG DIV CORP LTD
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Patent Information

Application Number
CN202421539339.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-01
Publication Date
2025-05-06
Estimated Expiration
2034-07-01

AI Technical Summary

Technical Problem

During the decoration and decoration of exterior walls, the laying process of glue seam textured paper is complicated and complicated, and the spacing between the two sides of glue seam is difficult to control, resulting in low construction quality and efficiency.

Method used

A simple laying device for sticking greased paper is designed, including a support frame, press roller, guide wheel, rotating shaft, left turntable and right turntable. Through the synergy of these components, simple laying of greased paper is achieved.

Benefits of technology

This device makes the pasting process of glue seam textured paper simple and convenient, improves construction quality and efficiency, and is suitable for large-scale promotion and application.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a simple paving device for glue line masking paper, which is characterized in that a support frame is vertically arranged along the front-back direction, a compression roller is horizontally arranged along the left-right direction, is positioned behind the upper end of the support frame and is rotatably connected with the upper end of the support frame around the left-right direction, and a guide wheel is vertically arranged along the front-back direction. The rear part of the lower end of the support frame is rotatably connected with the middle part of the lower end of the support frame in the left-right direction; the rotating shaft is arranged in the left-right direction, the middle of the rotating shaft is located above the front portion of the guide wheel, penetrates through the supporting frame in the left-right direction and is rotatably arranged around the left-right direction relative to the supporting frame, and the left rotating disc and the right rotating disc are vertically arranged in the front-back direction, are arranged in a left-right spaced mode and are connected to the left end and the right end of the rotating shaft in a sleeving mode correspondingly; and two rolls of masking tape which are vertically arranged, are arranged in the front-back direction and are arranged at an interval in the left-right direction are respectively arranged on the base in a sleeving manner. According to the utility model, the glue line masking paper can be simply and conveniently paved, and the construction quality and the construction efficiency are improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to the technical field of adhesive seam masking paper paving, and specifically refers to a simple adhesive seam masking paper paving device. Background Art

[0002] Building construction refers to the production activities in the implementation stage of engineering construction. It is the construction process of various buildings. It can also be said to be the process of turning various lines on the design drawings into physical objects at designated locations. It includes foundation engineering construction, main structure construction, roof engineering construction, decoration engineering construction, etc.

[0003] During the exterior wall decoration process, because the exterior wall area is too large, the workers find it too cumbersome and complicated to lay masking tape during the glue joint application process, and the spacing on both sides of the glue joint is not easy to control, resulting in low construction quality and efficiency.

[0004] Therefore, it is hoped to provide a simple adhesive seam masking tape paving device, which can make the adhesive seam masking tape paving simple and convenient, and improve the construction quality and construction efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the above-mentioned prior art, one purpose of the utility model is to provide a simple adhesive seam masking tape laying device, which can make the adhesive seam masking tape laying simple and convenient, improve the construction quality and construction efficiency, and is suitable for large-scale promotion and application.

[0006] Another object of the utility model is to provide a simple paving device for adhesive seam masking paper, which has a clever design, a simple structure, is easy to manufacture, has a low manufacturing cost, and is suitable for large-scale promotion and application.

[0007] In order to achieve the above purpose, the utility model provides a simple paving device for adhesive seam masking paper, which is characterized by comprising a support frame, a pressure roller, a guide wheel, a rotating shaft, a left turntable and a right turntable, wherein:

[0008] The support frame is arranged vertically and along the front-to-back direction, the pressure roller is arranged horizontally and along the left-to-right direction, the pressure roller is located behind the upper end of the support frame and is rotatably connected to the upper end of the support frame around the left-to-right direction, the guide wheel is arranged vertically and along the front-to-back direction, the guide wheel is located behind the middle position of the lower end of the support frame and is rotatably connected to the middle position of the lower end of the support frame around the left-to-right direction;

[0009] The rotating shaft is arranged along the left-right direction, the middle part of the rotating shaft is located in the front and upper part of the guide wheel and passes through the support frame along the left-right direction and is rotatable around the left-right direction relative to the support frame, the left turntable and the right turntable are both arranged vertically and along the front-back direction, the left turntable and the right turntable are spaced apart from each other on the left and right and are respectively sleeved on the left and right ends of the rotating shaft, and the left turntable and the right turntable are used to respectively sleeve thereon two rolls of masking tape, which are both arranged vertically and along the front-back direction and spaced apart from each other on the left and right.

[0010] Preferably, the support frame includes a base plate and a fixed plate, the base plate is vertically arranged and arranged along the left-right direction, the fixed plate is vertically arranged and arranged along the front-back direction, the fixed plate is located in front of the middle position of the base plate and connected to the middle position of the base plate, the pressure roller is located behind the upper end of the base plate and is rotatably connected to the upper end of the base plate around the left-right direction, the guide wheel is located behind the middle position of the lower end of the base plate and is rotatably connected to the middle position of the lower end of the base plate around the left-right direction; the middle part of the rotating shaft passes through the fixed plate along the left-right direction and is rotatably arranged relative to the fixed plate around the left-right direction.

[0011] Preferably, the pressure roller is a rubber pressure roller.

[0012] Preferably, the left turntable and the right turntable are respectively sleeved and threadedly engaged with the left end of the rotating shaft and the right end of the rotating shaft.

[0013] More preferably, the simple laying device for adhesive seam masking paper also includes a left adjusting knob, which is vertically arranged and arranged along the front-to-back direction, and the left adjusting knob is located on the left side of the left turntable and connected to the left turntable for rotating the left turntable around the axis of the rotating shaft.

[0014] Furthermore, the simple paving device for adhesive seam masking paper also includes a left damping plate, which is vertically arranged and arranged along the front-to-back direction. The left damping plate is located between the left adjusting knob and the left turntable and is respectively connected to the left adjusting knob and the left turntable. The left damping plate is sleeved on the left end of the rotating shaft.

[0015] More preferably, the simple laying device for adhesive seam masking paper also includes a right adjusting knob, which is vertically arranged and arranged along the front-to-back direction. The right adjusting knob is located on the right side of the right turntable and is connected to the right turntable for rotating the right turntable around the axis of the rotating shaft.

[0016] Furthermore, the simple paving device for adhesive seam masking paper also includes a right damping plate, which is vertically arranged and arranged along the front-to-back direction. The right damping plate is located between the right turntable and the right adjusting knob and is respectively connected to the right turntable and the right adjusting knob. The right damping plate is sleeved on the right end of the rotating shaft.

[0017] Preferably, the simple paving device for adhesive seam masking paper further comprises a handle, which is arranged vertically and along the left-right direction, and the handle is located under the lower end of the support frame and connected to the lower end of the support frame.

[0018] Preferably, the simple paving device for adhesive seam masking paper also includes an elastic protective sheet, which is arranged along the left-right direction and inclined along the front-back direction, and the front side of the elastic protective sheet is lower than the rear side of the elastic protective sheet and is arranged on the upper end of the support frame.

[0019] The beneficial effects of the utility model are mainly:

[0020] The cam is disposed on the upper end of the support frame and is rotatable around the left and right directions, and the guide wheel is disposed on the lower end of the support frame and is rotatable around the left and right directions to connect the upper end of the support frame; the guide wheel is disposed on the upper end of the support frame and is rotatable around the left and right directions to connect the lower end of the support frame; the rotating shaft is disposed on the left and right directions, the middle part of the rotating shaft is located on the upper front of the guide wheel and passes through the supporting frame along the left and right directions and can be rotatable around the left and right directions relative to the supporting frame; the left turntable and the right turntable are both disposed on the upper end of the support frame and are spaced apart from each other on the left and right directions and are respectively sleeved on the left and right ends of the rotating shaft for sleeved thereon respectively; therefore, the cam can make the paving of the cam simple and convenient, improve the construction quality and efficiency, and is suitable for large-scale promotion and application.

[0021] 2. The support frame of the simple paving device for adhesive seam masking paper of the utility model is arranged vertically and along the front-to-back direction, the pressure roller is arranged horizontally and along the left-to-right direction, is located behind the upper end of the support frame and is rotatable about the left-to-right direction to be connected to the upper end of the support frame, the guide wheel is arranged vertically and along the front-to-back direction, is located behind the middle position of the lower end of the support frame and is rotatable about the left-to-right direction to be connected to the middle position of the lower end of the support frame; the rotating shaft is arranged along the left-to-right direction, the middle part of the rotating shaft is located in the front and upper part of the guide wheel and passes through the support frame along the left-to-right direction and is rotatable relative to the support frame about the left-to-right direction, the left turntable and the right turntable are both arranged vertically and along the front-to-back direction, are spaced apart from each other on the left and right ends, and are respectively sleeved on the left and right ends of the rotating shaft, for respectively sleeved thereon two rolls of masking paper tapes which are both arranged vertically and along the front-to-back direction and spaced apart from each other on the left and right sides. Therefore, the design is ingenious, the structure is simple, the manufacturing is simple, the manufacturing cost is low, and it is suitable for large-scale promotion and application.

[0022] These and other objects, features and advantages of the present invention are fully reflected in the following detailed description and drawings, and can be achieved by the means, devices and their combinations specifically pointed out in the content of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model is a front view schematic diagram of a specific embodiment of the simple paving device of adhesive seam masking paper of the present invention.

[0024] Figure 2 yes Figure 1 A left side schematic diagram of the specific embodiment shown.

[0025] Figure 3 yes Figure 1 A right side schematic diagram of the specific embodiment shown.

[0026] Figure 4 yes Figure 1 A schematic top view of a specific embodiment is shown.

[0027] (Explanation of symbols)

[0028] 1 support frame; 2 pressure roller; 3 guide wheel; 4 rotating shaft; 5 left turntable; 6 right turntable; 7 bottom plate; 8 fixing plate; 9 left adjusting knob; 10 left damping disc; 11 right adjusting knob; 12 right damping disc; 13 handle; 14 elastic protective sheet. DETAILED DESCRIPTION

[0029] In order to more clearly understand the technical content of the present invention, the following embodiments are given in detail.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] See also Figure 1 to Figure 4 As shown, in a specific embodiment of the utility model, the simple paving device of the adhesive seam masking paper of the utility model comprises a support frame 1, a pressure roller 2, a guide wheel 3, a rotating shaft 4, a left rotating disk 5 and a right rotating disk 6, wherein:

[0032] The support frame 1 is arranged vertically and along the front-to-back direction, the pressure roller 2 is arranged horizontally and along the left-to-right direction, the pressure roller 2 is located behind the upper end of the support frame 1 and is rotatably connected to the upper end of the support frame 1 around the left-to-right direction, the guide wheel 3 is arranged vertically and along the front-to-back direction, the guide wheel 3 is located behind the middle position of the lower end of the support frame 1 and is rotatably connected to the middle position of the lower end of the support frame 1 around the left-to-right direction;

[0033] The rotating shaft 4 is arranged along the left-right direction, the middle part of the rotating shaft 4 is located in the front and upper part of the guide wheel 3 and passes through the support frame 1 along the left-right direction and is rotatable around the left-right direction relative to the support frame 1, the left turntable 5 and the right turntable 6 are both arranged vertically and along the front-back direction, the left turntable 5 and the right turntable 6 are spaced apart from each other on the left and right and are respectively sleeved on the left and right ends of the rotating shaft 4, the left turntable 5 and the right turntable 6 are used to respectively sleeve thereon two rolls of masking tape, which are both arranged vertically and along the front-back direction and spaced apart from each other on the left and right.

[0034] The support frame 1 may have any suitable configuration, see Figure 1 to Figure 4 As shown, in a specific embodiment of the utility model, the support frame 1 includes a base plate 7 and a fixed plate 8, the base plate 7 is vertically arranged and arranged along the left-right direction, the fixed plate 8 is vertically arranged and arranged along the front-back direction, the fixed plate 8 is located in front of the middle position of the base plate 7 and connected to the middle position of the base plate 7, the pressure roller 2 is located behind the upper end of the base plate 7 and is rotatably connected to the upper end of the base plate 7 around the left-right direction, the guide wheel 3 is located behind the middle position of the lower end of the base plate 7 and is rotatably connected to the middle position of the lower end of the base plate 7 around the left-right direction; the middle part of the rotating shaft 4 passes through the fixed plate 8 along the left-right direction and is rotatably arranged relative to the fixed plate 8 around the left-right direction.

[0035] The bottom plate 7 may have any suitable shape, see Figure 1 to Figure 4 As shown, in a specific embodiment of the present invention, the bottom plate 7 is a rectangular plate.

[0036] The fixing plate 8 may have any suitable shape, see Figure 1 to Figure 4 As shown, in a specific embodiment of the present utility model, the fixing plate 8 is an arched plate, which protrudes forward in an arch shape from the middle position of the bottom plate 7.

[0037] The pressure roller 2 can be a pressure roller made of any suitable material. In a specific embodiment of the present invention, the pressure roller 2 is a rubber pressure roller.

[0038] The left turntable 5 and the right turntable 6 are respectively sleeved on the left end and the right end of the rotating shaft 4, and any suitable structure can be adopted. In a specific embodiment of the utility model, the left turntable 5 and the right turntable 6 are respectively sleeved and threadedly engaged with the left end and the right end of the rotating shaft 4.

[0039] The simple adhesive seam masking paper laying device can also include any other suitable components, see Figure 1-2 and Figure 4 As shown, in a specific embodiment of the utility model, the simple laying device for adhesive seam masking paper also includes a left adjusting knob 9, which is vertically arranged and arranged along the front-to-back direction. The left adjusting knob 9 is located on the left side of the left turntable 5 and is connected to the left turntable 5 for rotating the left turntable 5 around the axis of the rotating shaft 4.

[0040] The simple adhesive seam masking paper laying device can also include any other suitable components, see Figure 1-2 and Figure 4 As shown, in a specific embodiment of the utility model, the simple paving device for adhesive seam masking paper also includes a left damping plate 10, which is vertically arranged and arranged along the front-to-back direction. The left damping plate 10 is located between the left adjusting knob 9 and the left turntable 5 and is respectively connected to the left adjusting knob 9 and the left turntable 5. The left damping plate 10 is sleeved on the left end of the rotating shaft 4.

[0041] The simple adhesive seam masking paper laying device can also include any other suitable components, see Figure 1 and Figure 3-4 As shown, in a specific embodiment of the utility model, the simple laying device for adhesive seam masking paper also includes a right adjusting knob 11, which is vertically arranged and arranged along the front-to-back direction. The right adjusting knob 11 is located on the right side of the right turntable 6 and is connected to the right turntable 6 for rotating the right turntable 6 around the axis of the rotating shaft 4.

[0042] The simple adhesive seam masking paper laying device can also include any other suitable components, see Figure 1 and Figure 3-4 As shown, in a specific embodiment of the utility model, the simple paving device for adhesive seam masking paper also includes a right damping plate 12, which is vertically arranged and arranged along the front-to-back direction, and the right damping plate 12 is located between the right turntable 6 and the right adjusting knob 11 and is respectively connected to the right turntable 6 and the right adjusting knob 11, and the right damping plate 12 is sleeved on the right end of the rotating shaft 4.

[0043] The simple adhesive seam masking paper laying device can also include any other suitable components, see Figure 1 to Figure 4 As shown, in a specific embodiment of the utility model, the simple adhesive seam masking paper laying device further includes a handle 13, the handle 13 is vertically arranged and arranged along the left-right direction, and the handle 13 is located under the lower end of the support frame 1 and connected to the lower end of the support frame 1. In the case where the support frame 1 includes a bottom plate 7 and a fixing plate 8, the handle 13 is located under the lower end of the bottom plate 7 and connected to the lower end of the bottom plate 7.

[0044] The handle 13 may have any suitable shape, see Figure 1 to Figure 4 As shown, in a specific embodiment of the present invention, the handle 13 is a rectangular parallelepiped handle.

[0045] The simple adhesive seam masking paper laying device can also include any other suitable components, see Figure 1 to Figure 4 As shown, in a specific embodiment of the utility model, the adhesive seam masking paper simple paving device further includes an elastic protection sheet 14, the elastic protection sheet 14 is arranged along the left-right direction and is inclined along the front-back direction, and the front side of the elastic protection sheet 14 is lower than the rear side of the elastic protection sheet 14 and is arranged on the upper end of the support frame 1. In the case where the support frame 1 includes a bottom plate 7 and a fixing plate 8, the front side of the elastic protection sheet 14 is arranged on the upper end of the bottom plate 7.

[0046] The elastic protection sheet 14 can be an elastic protection sheet made of any suitable material. In a specific embodiment of the present invention, the elastic protection sheet 14 is a rubber sheet.

[0047] During construction, taking the need to lay masking tape on both sides of the vertical glue joint as an example, two rolls of masking tape, both arranged vertically and in the front-to-back direction and spaced apart from each other, are respectively placed on the left turntable 5 and the right turntable 6;

[0048] According to the width of the vertical glue seam, force is applied to the left adjusting knob 9 to make the left turntable 5 rotate around the axis of the rotating shaft 4, so that the left turntable 5 moves left and right relative to the left end of the rotating shaft 4 to adjust the distance between the left turntable 5 and the middle of the rotating shaft 4, and the left damping disc 10 is used as an adjusting damping for easy operation; force is applied to the right adjusting knob 11 to make the right turntable 6 rotate around the axis of the rotating shaft 4, so that the right turntable 6 moves left and right relative to the right end of the rotating shaft 4 to adjust the distance between the right turntable 6 and the middle of the rotating shaft 4, and the right damping disc 12 is used as an adjusting damping for easy operation; thereby adjusting the spacing between the two rolls of masking tape so that they can perfectly fit on both sides of the vertical glue seam;

[0049] Place the guide wheel 3 in the middle of the vertical glue seam, place the pressure roller 2 against both sides of the vertical glue seam, wind the masking paper of the two rolls of masking tape through the elastic protective sheet 14 from above the elastic protective sheet 14 and stick them on both sides of the vertical glue seam, with the adhesive surface of the masking paper facing upward and winding through the elastic protective sheet 14. The elastic protective sheet 14 is bent and deformed in an arc shape by the winding of the masking paper. Hold the handle 13 and slowly push the utility model from bottom to top. The utility model is accurately guided along the vertical glue seam by the guide wheel 3 and passed through the pressure roller. 2 Press the masking papers of the two rolls of masking tape tightly on both sides of the vertical glue seam. When the pressure roller 2 presses the masking paper and rotates upward, continuously pull the masking paper on the two rolls of masking tape, so that the two rolls of masking tape, the left turntable, the right turntable and the rotating shaft rotate together around the axis of the rotating shaft (left and right direction), so that the masking papers of the two rolls of masking tape are evenly pasted on both sides of the vertical glue seam, and then glue is applied in the vertical glue seam. After the gluing is completed, the masking paper is torn off to form a beautiful glue seam.

[0050] Therefore, the utility model is adopted, the operation is simple, time and labor are saved, the input of personnel is reduced, the construction efficiency is improved, and at the same time, the appearance and quality of the glue joint are guaranteed, and the construction quality is high.

[0051] In summary, the simple adhesive seam masking tape paving device of the utility model can make the adhesive seam masking tape paving simple and convenient, improve the construction quality and construction efficiency, has a clever design, a simple structure, is easy to manufacture, has a low manufacturing cost, and is suitable for large-scale promotion and application.

[0052] It can be seen that the purpose of the utility model has been completely and effectively achieved. The function and structural principle of the utility model have been demonstrated and explained in the embodiments. Without departing from the principles, the implementation methods can be modified arbitrarily. Therefore, the utility model includes all modified implementation methods based on the spirit and scope of the claims.

Claims

1. A simple paving device for adhesive seam masking paper, characterized in that: It includes a support frame, a pressure roller, a guide wheel, a rotating shaft, a left rotating disk and a right rotating disk, wherein: The support frame is arranged vertically and along the front-to-back direction, the pressure roller is arranged horizontally and along the left-to-right direction, the pressure roller is located behind the upper end of the support frame and is rotatably connected to the upper end of the support frame around the left-to-right direction, the guide wheel is arranged vertically and along the front-to-back direction, the guide wheel is located behind the middle position of the lower end of the support frame and is rotatably connected to the middle position of the lower end of the support frame around the left-to-right direction; The rotating shaft is arranged along the left-right direction, the middle part of the rotating shaft is located in the front and upper part of the guide wheel and passes through the support frame along the left-right direction and is rotatable around the left-right direction relative to the support frame, the left turntable and the right turntable are both arranged vertically and along the front-back direction, the left turntable and the right turntable are spaced apart from each other on the left and right and are respectively sleeved on the left and right ends of the rotating shaft, and the left turntable and the right turntable are used to respectively sleeve thereon two rolls of masking tape, which are both arranged vertically and along the front-back direction and spaced apart from each other on the left and right.

2. The simple adhesive seam masking paper paving device according to claim 1, characterized in that: The support frame includes a base plate and a fixed plate, the base plate is vertically arranged and arranged along the left-right direction, the fixed plate is vertically arranged and arranged along the front-back direction, the fixed plate is located in front of the middle position of the base plate and connected to the middle position of the base plate, the pressure roller is located behind the upper end of the base plate and is rotatably connected to the upper end of the base plate around the left-right direction, the guide wheel is located behind the middle position of the lower end of the base plate and is rotatably connected to the middle position of the lower end of the base plate around the left-right direction; the middle part of the rotating shaft passes through the fixed plate along the left-right direction and is rotatably arranged relative to the fixed plate around the left-right direction.

3. The simple adhesive seam masking paper laying device according to claim 1, characterized in that: The pressure roller is a rubber pressure roller.

4. The simple adhesive seam masking paper laying device according to claim 1, characterized in that: The left rotating disk and the right rotating disk are respectively sleeved and threadedly engaged with the left end of the rotating shaft and the right end of the rotating shaft.

5. The simple adhesive seam masking paper laying device according to claim 4, characterized in that: The simple paving device for adhesive seam masking paper also includes a left adjusting knob, which is vertically arranged and arranged along the front-to-back direction. The left adjusting knob is located on the left side of the left turntable and is connected to the left turntable for rotating the left turntable around the axis of the rotating shaft.

6. The simple adhesive seam masking paper laying device according to claim 5, characterized in that: The simple paving device for adhesive seam masking paper also includes a left damping plate, which is vertically arranged and arranged along the front-to-back direction. The left damping plate is located between the left adjusting knob and the left turntable and is respectively connected to the left adjusting knob and the left turntable. The left damping plate is sleeved on the left end of the rotating shaft.

7. The simple adhesive seam masking paper laying device according to claim 4, characterized in that: The simple paving device for adhesive seam masking paper also includes a right adjusting knob, which is vertically arranged and arranged along the front-to-back direction. The right adjusting knob is located on the right side of the right turntable and is connected to the right turntable for rotating the right turntable around the axis of the rotating shaft.

8. The simple adhesive seam masking paper laying device according to claim 7, characterized in that: The simple paving device for adhesive seam masking paper also includes a right damping plate, which is vertically arranged and arranged along the front-to-back direction. The right damping plate is located between the right turntable and the right adjusting knob and is respectively connected to the right turntable and the right adjusting knob. The right damping plate is sleeved on the right end of the rotating shaft.

9. The simple adhesive seam masking paper laying device according to claim 1, characterized in that: The simple paving device for adhesive seam masking paper also includes a handle, which is arranged vertically and along the left-right direction. The handle is located below the lower end of the support frame and connected to the lower end of the support frame.

10. The simple adhesive seam masking paper laying device according to claim 1, characterized in that: The simple paving device for adhesive seam masking paper also includes an elastic protective sheet, which is arranged along the left-right direction and inclined along the front-back direction. The front side of the elastic protective sheet is lower than the rear side of the elastic protective sheet and is arranged on the upper end of the support frame.