FORKLIFT FORK EXTENSION

Abstract

The utility model relates to lifting equipment, specifically to forklift fork extensions used to increase the working length of standard forks when transporting long and oversized loads. The technical result achieved by the claimed solution consists of ensuring the reliability of the fork extension. This technical result is achieved by developing a forklift fork extension comprising a hollow steel housing made from a solid rectangular tube. The housing is open at one end to allow fork insertion, while the opposite end is closed and features a chamfered bottom and rounded corners. Plate-shaped ears located at the open end are welded to the housing along the perimeter at the points of contact with the housing on the fork entry side. The height of the ears is equal to the height of the housing, and each ear contains a rectangular opening with rounded edges for installing a locking element.

Description

[0001] Field of technology to which the utility model belongs

[0002] The utility model relates to the field of lifting equipment, in particular to forklift fork extensions used to increase the working length of standard forks when transporting long and large-sized loads.

[0003] Technology Level

[0004] There is a forklift extension (CN211871304U, published 2020-11-06) that contains a rectangular section housing, but it is a more complex structure that does not provide sufficient reliability.

[0005] The solution chosen as a prototype is known (https: / / market.yandex.ru / card / udlinitel-dlya-vilkomplekt-2sht-navesnoye-oborudovaniye-dlya-vilochnogo-pogruzchika-1600mm-gp-pogruzchika-do-3t-shveller-16p / 103524998726?do-waremd5=q88o_o7WR4LPO3 jTIa-0DA&sponsored=1&cpc=PGDASYHX8MzXmf_d-T25HlRXHfQWLIWRPPYTUmzcCnD2PgENFfC96OBgXiid4-tCqXVfgEhUrB-oSSarpXydbbn8kU7vqWGukmG7 zfEYhir3lmXoSxnO-VKf2x9tzt2ZbneVt3h8XbMrpMRAOqHeHxkoiU-2EBiXa-eGwHL_DZ7C2Z9o-kPnqKjdlG9kkkbrn_Jd4WIGq-2w7p_2IaFl75uMq0Fd4WS7V

[0006] WWVWvr8wZiCWfL6f_mV8gfx1xPMtrfCbIpmEd8CkQEmxHOwrqnjz8ki03hO45izqU_Wq 7rBdRgp0JJlS6lXB_f_pGWIik6nKdhGdU3H7nsFBEm48ObErHvJvUxRNG-T6bqv7hupNTpVjQ3EICBg

[0007] MASOxGc2_ozG&nid=69349&ogV=-12), which reveals a fork extension of similar design.

[0008] However, this solution does not disclose the features of fastening the lugs to the body and uses a different lug design.

[0009] Disclosure of the declared solution

[0010] In one aspect, a forklift fork extension is disclosed, comprising:

[0011] - a hollow steel body made from a solid rectangular tube, with one end of the body open to allow fork insertion, and the opposite end of the body closed, with a bevel at the bottom and rounded corners,

[0012] - ears in the form of plates located at the open end, welded to the body along the perimeter at the points of contact with the body from the side of the fork entry,

[0013] - the height of the ears is equal to the height of the body,

[0014] - each ear contains a rectangular hole with rounded edges for installing the fixing element; in the upper part, the ears contain holes; the ears are 20 cm long, the middle of the ears is located on the edge of the case; the ears are 4 mm thick; in which the case and ears are covered with paint; the case length is 2 meters, the case width is 140 mm, the case height is 60 mm, the thickness of the case material is 4 mm; the case length is 2.5 meters, the case width is 140 mm, the case height is 60 mm, the thickness of the case material is 5 mm; the case length is 3 meters, the case width is 140 mm, the case height is 60 mm, the thickness of the case material is 5 mm.

[0015] The main problem solved by the declared solution is to provide a reliable fork extension.

[0016] The essence of the claimed solution is that the fork extension contains ears securely attached to the body by welding, the ears contain rectangular holes with rounded edges.

[0017] The technical result achieved by the claimed solution is to ensure the reliability of the fork extension.

[0018] Brief description of drawings

[0019] Fig. 1 shows the extension before installation on the forks of the forklift.

[0020] Fig. 2 shows the extension after installation on the forks of the forklift.

[0021] Fig. 3 shows the forklift fork extension ears.

[0022] Implementation of the declared decision

[0023] The proposed solution is a structurally and functionally unified device. All components are housed within a single housing and are connected directly or indirectly via a functional link. The sole function of the claimed device is to extend the working length of the forklift's standard fork when transporting long loads. The proposed device is assembled at the manufacturing facility by connecting its components through assembly operations.

[0024] A functional connection between elements is defined as a connection that ensures the correct interaction of these elements with one another and the implementation of a particular functionality of the elements. Specific examples of a functional connection may include a connection enabling the exchange of information, a connection enabling the transmission of electric current, a connection enabling the transmission of mechanical motion, a connection enabling the setting of position, a connection enabling the transmission of light, sound, electromagnetic or mechanical vibrations, etc. The specific type of functional connection is determined by the nature of the interaction between the aforementioned elements and, unless otherwise specified, is achieved by well-known means using principles well-known in the art.

[0025] Fig. 1 shows the extensions that are not yet put on the forks of the forklift, Fig. 2 shows the extensions that are put on the forks of the forklift.

[0026] The following elements are shown in Fig. 3:

[0027] 300 - body,

[0028] 301 - eyelet,

[0029] 302 - hole in the eye,

[0030] 303 - fastener.

[0031] The 300 housing is designed as a hollow beam with a rectangular cross-section, open at the end facing the forklift, for mounting on a standard fork. The 300 housing is made of structural steel, with wall thickness selected based on the load-bearing capacity in accordance with applicable standards (e.g., ISO 2330). In one embodiment, the wall thickness is 4 mm, 4.5 mm, 5 mm, 5.5 mm, or 6 mm. Thinner wall thicknesses reduce the reliability of the claimed device, as the extension may bend and cease to function. Greater thicknesses do not provide significant advantages, but significantly increase the weight of the claimed device.

[0032] Lug 301 is a sheet steel bracket mounted on the end of body 300 closest to the forklift. Hole 302 is located at the top of lug 301. A fastener (such as a bolt or stud) is inserted into hole 302 after installation on the fork. Therefore, when the extension is attached to the fork, the upward position of hole 302 prevents the extension from slipping off the fork.

[0033] The elongated shape of the 302 hole allows for secure installation of the extension on forks of various sizes. The rounded shape of the 302 hole helps reduce damage to both the 303 fastener and the 302 hole itself, increasing the reliability of the extension.

[0034] In the claimed solution, lug 301 has the same height as housing 300 and is rigidly attached to housing 300 via a weld. The weld is performed using arc welding along the entire perimeter of lug 301 (in the area where it contacts housing 300), ensuring maximum contact area and uniform load distribution from lug 301 to the wall of housing 300. The presence of a weld along the entire perimeter of lug 301 ensures greater reliability compared to one or two welds. The height of lug 301, equal to the height of housing 300, ensures the longest possible weld, increasing the reliability of the claimed device.

[0035] Implementation option 1

[0036] In one embodiment, the forklift extension on the side opposite the forklift has a closed housing, a bevel at the bottom, and rounded corners.

[0037] The closed end of the housing prevents the ingress of water and dirt, which can cause rust that can destroy the extension cord, reducing its reliability.

[0038] Implementation option 2

[0039] In one embodiment, the ears 301 have a length of 20 cm, the middle of the ears 301 is located on the edge of the housing, which ensures high reliability of the declared device.

[0040] Implementation option 3

[0041] In one embodiment, the ears have a thickness of 4 mm or 5 mm or 6 mm, which ensures high reliability of the solution.

[0042] Implementation option 4

[0043] In one embodiment, the body and lugs are coated with a protective anti-corrosion coating, such as paint or a protective polymer coating, which protects them from destruction and increases reliability.

[0044] Implementation option 5

[0045] In one embodiment, the length of the housing 300 is 2, or 2.5, or 3 meters. The width of the housing is 140, or 145 mm, or 150, or 155 mm, or 160 mm. The height of the housing is 50 mm, or 55 mm, or 60 mm, 65 mm, or 70 mm, or 75 mm.

[0046] The embodiments are not limited to the embodiments described herein; other embodiments that do not go beyond the spirit and scope of this solution will become apparent to those skilled in the art based on the information provided in the description and knowledge of the prior art.

[0047] Elements mentioned in the singular do not exclude a plurality of elements unless otherwise specifically stated.

[0048] Although exemplary embodiments have been described in detail and shown in the accompanying drawings, it should be understood that such embodiments are illustrative only and are not intended to limit the broader utility model, and that the present solution should not be limited to the specific arrangements and structures shown and described, since various other modifications may be obvious to those skilled in the art.

[0049] The features mentioned in various dependent claims, as well as the implementations disclosed in various parts of the description, can be combined to achieve useful effects, even if the possibility of such a combination is not explicitly disclosed.

Claims

1. A forklift fork extension comprising a hollow steel body made from a solid rectangular tube, wherein the body is open at one end to allow for the fork to be inserted, the body is closed at the opposite end, has a bevel at the bottom and rounded corners, ears in the form of plates located at the open end, welded to the body along the perimeter at the points of contact with the body on the side where the fork enters, the height of the ears is equal to the height of the body, each ear contains a rectangular opening with rounded edges for installing a locking element.

2. An extension according to item 1, characterized in that the hole is made in the upper part of the eye.

3. An extension cord according to item 1, characterized in that the ears are 20 cm long, and the middle of the ears is located at the edge of the body.

4. An extension cord according to item 1, characterized in that the ears have a thickness of 4 mm.

5. An extension cord according to item 1, characterized in that the body and ears are made with a protective anti-corrosion coating.

6. An extension cord according to paragraph 1, characterized in that the length of the housing is 2 meters, the width of the housing is 140 mm, the height of the housing is 60 mm, and the thickness of the housing material is 4 mm.

7. An extension cord according to paragraph 1, characterized in that the length of the housing is 2.5 meters, the width of the housing is 140 mm, the height of the housing is 60 mm, and the thickness of the housing material is 5 mm.

8. An extension cord according to paragraph 1, characterized in that the length of the housing is 3 meters, the width of the housing is 140 mm, the height of the housing is 60 mm, and the thickness of the housing material is 5 mm.

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