A folder fixing device and a forklift top protection frame

Abstract

The utility model relates to a fork truck technical field discloses a file folder fixing device and fork truck protection roof frame, this file folder fixing device includes fixed bolster, it includes first fixed structure and second fixed structure, first fixed structure is located on the support pole of fork truck, has first connecting portion, second fixed structure has second connecting portion, and is equipped with friction pad between second connecting portion and first connecting portion, first adjusting structure, it penetrates first connecting portion, friction pad and second connecting portion, when first adjusting structure is in the adjusting state, allows second fixed structure to rotate relative to first fixed structure, when first adjusting structure is in the locking state, friction pad and first connecting portion and second connecting portion abut respectively, and second fixed structure keeps fixed with first fixed structure, support plate, is located on second fixed structure, is used for fixing file folder, the utility model's advantage lies in, adjusts installation position and high stability, long service life.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, and in particular to a folder fixing device and a forklift top guard. Background Technology

[0002] In the forklift technology field, folder securing devices are crucial accessories that assist operators in quickly identifying and retrieving work information, and are widely used in logistics, warehousing, and manufacturing scenarios. Traditional folder securing devices are typically directly fixed to the forklift's support rod or overhead guard. This design lacks flexibility and cannot adjust the installation angle according to the actual working environment. Existing technology offers rotatable adjustable folder securing devices. While these designs can achieve a certain degree of angle change, the rigid contact between their connecting parts lacks an effective buffering or friction mechanism. This not only makes the adjustment process less smooth but also easily leads to component wear after frequent use, thus affecting the device's lifespan and stability. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a folder fixing device and forklift top guard that are adjustable in installation position, highly stable, and have a long service life.

[0004] The technical solution adopted by this utility model to solve its technical problem is to provide a folder fixing device, comprising:

[0005] A fixed bracket, comprising a first fixed structure and a second fixed structure, wherein the first fixed structure is disposed on the support rod of the forklift and has a first connecting portion extending away from the support rod, and the second fixed structure has a second connecting portion arranged parallel to the first connecting portion, and a friction pad is provided between the second connecting portion and the first connecting portion.

[0006] A first adjusting structure extends through the first connecting portion, the friction pad, and the second connecting portion. When the first adjusting structure is in the adjusting state, the second fixing structure is allowed to rotate relative to the first fixing structure. When the adjusting structure is in the locked state, the friction pad abuts against the first connecting portion and the second connecting portion respectively, and the second fixing structure remains fixed to the first fixing structure.

[0007] A support plate, which is disposed on the second fixing structure, is used to fix the folder.

[0008] In the above-mentioned folder fixing device, the first adjustment structure includes a first screw and a first nut. The first screw horizontally passes through the first connecting part, the friction pad and the second connecting part in sequence. The first nut is rotatably sleeved on the first screw. By rotating the first nut, the first adjustment structure can be switched between the adjustment state and the locking state.

[0009] In the aforementioned folder fixing device, a second adjusting structure is included. The first fixing structure is disposed on the support rod and has a first connecting edge and a second connecting edge arranged opposite to each other, with a gap between the first connecting edge and the second connecting edge. The second adjusting structure passes through the first connecting edge and the second connecting edge. When the second adjusting structure is in the adjusting state, the first fixing structure can move along the length direction of the support rod. When the second adjusting structure is in the locking state, the first fixing structure remains fixed to the support rod.

[0010] In the aforementioned folder fixing device, the second adjustment structure includes a second screw and a second nut. The second screw horizontally passes through the first connecting edge and the second connecting edge in sequence. The second nut is rotatably sleeved on the second screw. By rotating the second nut, the second adjustment structure can be switched between an adjustment state and a locking state.

[0011] In the above-described folder fixing device, the first fixing structure is detachably sleeved on the support rod and has a slot adapted to the shape of the support rod; when the second adjusting structure is in the locked state, the slot abuts against the outer wall of the support rod; when the second adjusting structure is in the adjusting state, a movable space is formed between the slot and the outer wall of the support rod.

[0012] In the aforementioned folder fixing device, the first fixing structure includes a first snap-fit ​​component and a second snap-fit ​​component that are integrally formed or separately configured. The first snap-fit ​​component and the second snap-fit ​​component together form the slot. When the first snap-fit ​​component and the second snap-fit ​​component are integrally formed, the first connecting edge is located at one end of the first snap-fit ​​component, and the second connecting edge is located at the opposite end of the second snap-fit ​​component. When the first snap-fit ​​component and the second snap-fit ​​component are separately configured, the first connecting edge is provided in two sets, respectively located at both ends of the first snap-fit ​​component, and the second connecting edge is provided in two sets, respectively located at both ends of the second snap-fit ​​component.

[0013] In the above-described folder fixing device, the second fixing structure includes a third connecting part that is perpendicularly connected to the second connecting part. The third connecting part extends along the width direction of the support plate and is detachably connected to the support plate by fasteners.

[0014] In the aforementioned folder fixing device, the third connecting part and the second connecting part are integrally formed or welded together.

[0015] In the aforementioned folder fixing device, the support plate is made of a transparent material.

[0016] The technical solution adopted by this utility model to solve its technical problem is to also provide a forklift overhead guard, which includes an overhead guard body, the overhead guard body includes a vertically arranged support rod, and the above-mentioned folder fixing device is installed on the support rod.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] 1. In this utility model, a friction pad is provided between the first connecting part and the second connecting part, and a first adjusting structure passes through the first connecting part, the friction pad, and the second connecting part. When the first adjusting structure is in the adjusting state, the second fixing structure is allowed to rotate relative to the first fixing structure. When the first adjusting structure is in the locked state, the friction pad abuts against the first connecting part and the second connecting part respectively, and the second fixing structure remains fixed to the first fixing structure. This design not only allows the support plate to be angled through the second fixing structure, but also uses the friction pad as a buffer isolation layer to avoid direct contact between the first fixing structure and the second fixing structure, thereby reducing structural wear and extending the overall service life of the folder fixing device.

[0019] 2. In this utility model, a second adjustment structure is provided, which passes through the first and second connecting edges arranged opposite to each other. When the second adjustment structure is in the adjustment state, the first fixing structure can move along the length direction of the support rod; when the second adjustment structure is in the locking state, the first fixing structure remains fixed to the support rod. This design allows the support plate to achieve flexible adjustment of the installation height through the second fixing structure, thereby meeting the usage habits of different operators and the needs of various working scenarios, and improving the human-machine adaptability and versatility of the device.

[0020] 3. In this utility model, the support plate is made of transparent material. This design effectively avoids the problem of the support plate obstructing the operator's view when not in use, thus eliminating the need to frequently remove the folder device from the support rod, effectively improving ease of use and work efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a folder fixing device according to the present invention.

[0022] Figure 2 This is an exploded view of a folder fixing device according to the present invention.

[0023] Figure 3 This is a structural schematic diagram of a forklift overhead guard according to the present invention.

[0024] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0025] 100. First fixing structure; 110. First snap-fit ​​component; 111. First connecting edge; 120. Second snap-fit ​​component; 121. Second connecting edge; 130. Slot; 140. First connecting part; 200. Second fixing structure; 210. Second connecting part; 220. Third connecting part; 300. First adjusting structure; 310. First screw; 320. First nut; 400. Second adjusting structure; 410. Second screw; 420. Second nut; 500. Support plate; 600. Friction pad; 700. Top cover frame body; 710. Support rod. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] like Figures 1 to 2 As shown, in this embodiment, a folder fixing device includes:

[0032] The fixed bracket includes a first fixed structure 100 and a second fixed structure 200. The first fixed structure 100 is disposed on the support rod 710 of the forklift and has a first connecting portion 140 extending away from the support rod 710. The second fixed structure 200 has a second connecting portion 210 arranged parallel to the first connecting portion 140, and a friction pad 600 is provided between the second connecting portion 210 and the first connecting portion 140.

[0033] The first adjusting structure 300 passes through the first connecting portion 140, the friction pad 600, and the second connecting portion 210. When the first adjusting structure 300 is in the adjusting state, the second fixing structure 200 is allowed to rotate relative to the first fixing structure 100. When the first adjusting structure 300 is in the locked state, the friction pad 600 abuts against the first connecting portion 140 and the second connecting portion 210 respectively, and the second fixing structure 200 remains fixed to the first fixing structure 100.

[0034] A support plate 500, mounted on the second fixing structure 200, is used to secure the folder. This design not only allows the support plate 500 to be angled via the second fixing structure 200, but also utilizes a friction pad 600 as a buffer layer to avoid direct contact between the first fixing structure 100 and the second fixing structure 200, thereby reducing structural wear and extending the overall service life of the folder securing device.

[0035] Specifically, such as Figure 1 , Figure 2 As shown, the folder fixing device mainly includes a fixing bracket, a first adjustment structure 300, a second adjustment structure 400, and a support plate 500. The fixing bracket, as the basic structure of the entire device, is mainly used to support and install the support plate 500. The first adjustment structure 300, in conjunction with the fixing bracket, is used to adjust the installation angle of the support plate 500, allowing operators to adjust the tilt angle of the folder according to actual usage needs, facilitating reading and writing. The second adjustment structure 400, also in conjunction with the fixing bracket, is used to adjust the installation height of the support plate 500, thereby meeting the personalized needs of operators of different heights or working positions for document display height.

[0036] In this embodiment, the fixing bracket includes a first fixing structure 100 and a second fixing structure 200. The first fixing structure 100 is mounted on the support rod 710 of the forklift and is used to securely install the entire folder fixing device on the forklift, ensuring that the device will not loosen or slip during operation. The second fixing structure 200 is connected to the first fixing structure 100 and is further used to install the support plate 500. This two-stage fixing method not only ensures the stability of the overall structure but also facilitates the adjustment of the angle and height of the support plate 500.

[0037] Furthermore, the first fixing structure 100 is detachably sleeved on the support rod 710 and has a hollow rectangular slot 130 that matches the shape of the support rod 710. This design allows the first fixing structure 100 to fit tightly against the surface of the support rod 710, ensuring secure installation and accurate positioning, while also facilitating quick assembly and disassembly, thus improving the flexibility and adaptability of the device.

[0038] Furthermore, the first fixing structure 100 has a first connecting edge 111 and a second connecting edge 121 arranged opposite to each other, and there is a gap between the first connecting edge 111 and the second connecting edge 121. This design provides installation space and adjustment margin for the second adjusting structure 400, enabling the second adjusting structure 400 to cooperate with the first fixing structure 100, and to dynamically adjust the size of the slot 130 by adjusting the size of the gap.

[0039] Specifically, when the second adjustment structure 400 acts on the first connecting edge 111 and the second connecting edge 121, the clamping state between the slot 130 and the forklift support rod 710 can be changed by compressing or releasing the gap between them: in the locked state, the gap between the first connecting edge 111 and the second connecting edge 121 is reduced, so that the slot 130 abuts against the outer wall of the support rod 710, thereby achieving stable fixation of the device; while in the adjustment state, the gap is increased, and an active space is formed between the slot 130 and the outer wall of the support rod 710, which makes it convenient for the user to adjust the height of the support plate 500 or to quickly disassemble and reposition the entire folder fixing device.

[0040] Furthermore, the first fixing structure 100 includes a first snap-fit ​​member 110 and a second snap-fit ​​member 120 that are integrally formed or separately disposed. The first snap-fit ​​member 110 and the second snap-fit ​​member 120 cooperate with each other and enclose to form the aforementioned slot 130, so that the user can flexibly configure the first fixing structure 100 according to actual usage needs.

[0041] Furthermore, when the first snap-fit ​​member 110 and the second snap-fit ​​member 120 are integrally formed, they together constitute a convex structure. The first connecting edge 111 is located at one end of the first snap-fit ​​member 110, and the second connecting edge 121 is located at the opposite end of the second snap-fit ​​member 120. A certain gap is maintained between the two to form an elastic or adjustable space for the second adjustment structure 400 to function, thereby realizing dynamic adjustment of the clamping force of the slot 130 and enhancing the device's compatibility with support rods 710 of different sizes.

[0042] Furthermore, when the first locking member 110 and the second locking member 120 are separate components, both have a U-shaped structure and a U-shaped contact surface for wrapping the outer wall of the support rod 710 to improve clamping stability. In this case, the first connecting edge 111 has two sets, located at both ends of the first locking member 110; correspondingly, the second connecting edge 121 also has two sets, located at both ends of the second locking member 120, so as to cooperate with the second adjustment structure 400 to achieve synchronous adjustment and locking functions.

[0043] Preferably, in this embodiment, the first snap-fit ​​connector 110 and the second snap-fit ​​connector 120 adopt a split design, which not only facilitates processing and assembly, but also improves the maintainability and ease of replacement of the structure, and is especially suitable for use scenarios that require frequent adjustment of the installation position or adaptation to multiple models of forklifts.

[0044] Furthermore, the first latching member 110 or the second latching member 120 is provided with a first connecting portion 140 on the side opposite to the support rod 710, and the first connecting portion 140 extends horizontally away from the support rod 710. This design provides a stable mounting base for the first adjustment structure 300, ensuring the reliability of the adjustment operation and the overall stability of the structure.

[0045] Furthermore, the first connecting part 140 is fixed to the first snap-fit ​​member 110 or the second snap-fit ​​member 120 by welding, and the extension direction of the first connecting part 140 is perpendicular to the support rod 710. This design not only improves the structural strength and load-bearing capacity, but also enhances the overall structural performance, avoiding deformation or loosening caused by eccentric loading or external forces, thereby effectively extending the service life of the folder fixing device.

[0046] In this embodiment, the second fixing structure 200 includes a second connecting portion 210 and a third connecting portion 220. The second connecting portion 210 is arranged parallel to the first connecting portion 140 and connected via a first adjusting structure 300. A friction pad 600 is provided between the second connecting portion 210 and the first connecting portion 140. This friction pad 600 acts as a buffer layer, forming a non-metallic contact interface between the second connecting portion 210 and the first connecting portion 140, avoiding direct metal contact between the first fixing structure 100 and the second fixing structure 200, thereby reducing structural wear and extending the overall service life of the folder fixing device.

[0047] Preferably, the friction pad 600 is in the shape of a round block and is made of nylon material. This design not only facilitates processing and assembly, but also has good wear resistance, self-lubrication and compressive strength, and can form a stable non-metallic contact interface between the first connecting part 140 and the second connecting part 210, effectively reducing frictional damage during relative rotation.

[0048] Furthermore, the third connecting part 220 is perpendicularly connected to the second connecting part 210 and extends along the width direction of the support plate 500 to provide a stable mounting base for the support plate 500. The third connecting part 220 is detachably connected to the support plate 500 by fasteners, which facilitates the quick replacement of support plates 500 of different sizes or functions according to usage requirements, thereby improving the adaptability and operational flexibility of the device.

[0049] Furthermore, the third connecting portion 220 and the second connecting portion 210 are either integrally formed or welded together. Integral forming improves overall structural strength and manufacturing efficiency, while welded forming is suitable for assembly processes after separate processing, offering greater process adaptability.

[0050] Preferably, the third connecting part 220 is rectangular and integrally formed with the second connecting part 210, which not only simplifies the assembly process but also enhances the overall rigidity and load-bearing capacity of the structure. Furthermore, the side of the third connecting part 220 facing away from the second connecting part 210 is tightly fitted with the support plate 500, ensuring the stability of the connection and effectively preventing loosening caused by off-center loading or vibration, thereby improving the stability and durability of the entire folder fixing device in practical applications.

[0051] In this embodiment, the first adjusting structure 300 horizontally passes through the first connecting portion 140, the friction pad 600, and the second connecting portion 210. When the first adjusting structure 300 is in the adjusting state, the second fixing structure 200 is allowed to rotate relative to the first fixing structure 100 to achieve flexible adjustment of the installation angle of the support plate 500. When the first adjusting structure 300 is in the locked state, the friction pad 600 abuts against the first connecting portion 140 and the second connecting portion 210 respectively, and the second fixing structure 200 remains fixed to the first fixing structure 100, thereby achieving reliable positioning of the installation angle of the support plate 500.

[0052] Furthermore, the first adjusting structure 300 includes a first screw 310 and a first nut 320. The first screw 310 passes horizontally through the first connecting portion 140, the friction pad 600, and the second connecting portion 210 sequentially, forming a stable through-and-connect structure. The first nut 320 is rotatably fitted onto the first screw 310, and rotating the first nut 320 allows the first adjusting structure 300 to switch between an adjusting state and a locking state.

[0053] Specifically, when the first nut 320 is tightened, the gap between the first connecting part 140 and the second connecting part 210 decreases, and the friction pad 600 is subjected to axial pressure and tightly adheres to the two, generating sufficient frictional resistance to achieve stable locking after angle adjustment. When the first nut 320 is loosened, the gap is restored, the friction pad 600 releases pressure and restores a certain deformation space, allowing the second connecting part 210 to rotate freely relative to the first connecting part 140 within a certain range, thereby achieving flexible adjustment of the installation angle of the support plate 500. This design not only achieves integrated operation of angle adjustment and locking functions, but also has the advantages of simple structure, intuitive operation, and reliable locking, making it particularly suitable for the practical needs of frequent adjustment of folder display angle during forklift operation.

[0054] In this embodiment, the second adjustment structure 400 passes through the first connecting edge 111 and the second connecting edge 121. When the second adjustment structure 400 is in the adjustment state, the first fixing structure 100 can move along the length direction of the support rod 710 so as to adjust the installation height of the device according to actual needs. When the second adjustment structure 400 is in the locking state, the first fixing structure 100 and the support rod 710 remain fixed to ensure the stability of the device in the dynamic working environment.

[0055] Furthermore, the second adjustment structure 400 includes a second screw 410 and a second nut 420. The second screw 410 horizontally passes through the first connecting edge 111 and the second connecting edge 121 in sequence. The second nut 420 is rotatably sleeved on the second screw 410. By rotating the second nut 420, the second adjustment structure 400 can switch between the adjustment state and the locking state.

[0056] Specifically, when the second nut 420 is tightened, the gap between the first connecting edge 111 and the second connecting edge 121 decreases, thereby compressing the slot 130 area and making it fit tightly against the outer wall of the forklift support rod 710, thus achieving a firm fixation of the entire folder fixing device; when the second nut 420 is loosened, the gap is restored, the slot 130 area releases pressure, allowing the device to move up and down along the length of the support rod 710, thus achieving flexible adjustment of the installation position.

[0057] In this embodiment, the support plate 500 has a rectangular structure and is made of a transparent material, such as polycarbonate (PC) or acrylic (PMMA), which are engineering plastics with good light transmittance and mechanical strength. This design effectively avoids the problem of the support plate 500 obstructing the operator's view when not in use, thus eliminating the need to frequently remove the folder device from the support rod 710, effectively improving ease of use and work efficiency.

[0058] Furthermore, the support plate 500 is mounted on the second fixing structure 200 to secure the folder, and is detachably connected to the third connecting part 220 of the second fixing structure 200 via fasteners. This design not only ensures the stability of the support plate 500 installation, but also facilitates the quick replacement of support plates 500 of different sizes or functions according to usage requirements, improving the flexibility and adaptability of the device.

[0059] Preferably, the support plate 500 is detachably provided with a clamping component (not shown in the figure) for fixing the folder to the support plate 500.

[0060] like Figures 1 to 3 As shown, based on the above-described embodiment of the folder fixing device, this utility model also provides a forklift overhead guard, which includes an overhead guard body 700. The overhead guard body 700 includes a vertically arranged support rod 710, and the folder fixing device as described above is installed on the support rod 710.

Claims

1. A folder fixing device, characterized in that, include: A fixed bracket, comprising a first fixed structure and a second fixed structure, wherein the first fixed structure is disposed on the support rod of the forklift and has a first connecting portion extending away from the support rod, and the second fixed structure has a second connecting portion arranged parallel to the first connecting portion, and a friction pad is provided between the second connecting portion and the first connecting portion. A first adjusting structure extends through the first connecting portion, the friction pad, and the second connecting portion. When the first adjusting structure is in the adjusting state, the second fixing structure is allowed to rotate relative to the first fixing structure. When the adjusting structure is in the locked state, the friction pad abuts against the first connecting portion and the second connecting portion respectively, and the second fixing structure remains fixed to the first fixing structure. A support plate, which is disposed on the second fixing structure, is used to fix the folder.

2. The folder fixing device according to claim 1, characterized in that, The first adjustment structure includes a first screw and a first nut. The first screw passes horizontally through the first connecting part, the friction pad, and the second connecting part in sequence. The first nut is rotatably sleeved on the first screw. By rotating the first nut, the first adjustment structure can be switched between an adjustment state and a locking state.

3. The folder fixing device according to claim 1, characterized in that, The first fixing structure is disposed on the support rod and has a first connecting edge and a second connecting edge arranged opposite to each other, and there is a gap between the first connecting edge and the second connecting edge. The second adjusting structure passes through the first connecting edge and the second connecting edge. When the second adjustment structure is in the adjustment state, the first fixing structure can move along the length direction of the support rod; when the second adjustment structure is in the locking state, the first fixing structure remains fixed to the support rod.

4. A folder fixing device according to claim 3, characterized in that, The second adjustment structure includes a second screw and a second nut. The second screw passes horizontally through the first connecting edge and the second connecting edge in sequence. The second nut is rotatably sleeved on the second screw. By rotating the second nut, the second adjustment structure can be switched between an adjustment state and a locking state.

5. A folder fixing device according to claim 3, characterized in that, The first fixing structure is detachably sleeved on the support rod and has a slot adapted to the shape of the support rod; when the second adjusting structure is in the locked state, the slot abuts against the outer wall of the support rod; when the second adjusting structure is in the adjusting state, a movable space is formed between the slot and the outer wall of the support rod.

6. A folder fixing device according to claim 5, characterized in that, The first fixing structure includes a first snap-fit ​​component and a second snap-fit ​​component that are integrally formed or separately configured. The first snap-fit ​​component and the second snap-fit ​​component together form the snap-fit ​​groove. When the first snap-fit ​​component and the second snap-fit ​​component are integrally formed, the first connecting edge is located at one end of the first snap-fit ​​component, and the second connecting edge is located at the opposite end of the second snap-fit ​​component. When the first snap-fit ​​component and the second snap-fit ​​component are separately configured, the first connecting edge is provided in two sets, respectively located at both ends of the first snap-fit ​​component, and the second connecting edge is provided in two sets, respectively located at both ends of the second snap-fit ​​component.

7. A folder fixing device according to claim 1, characterized in that, The second fixing structure includes a third connecting part that is perpendicularly connected to the second connecting part. The third connecting part extends along the width direction of the support plate and is detachably connected to the support plate by fasteners.

8. A folder fixing device according to claim 7, characterized in that, The third connecting part and the second connecting part are integrally formed or welded together.

9. A folder fixing device according to claim 1, characterized in that, The support plate is made of a transparent material.

10. A forklift overhead guard, characterized in that, The device includes a top cover frame body, the top cover frame body including a vertically arranged support rod, and the support rod is equipped with a folder fixing device according to any one of claims 1 to 9.

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