JPH03120200A - Lift bracket of forklift - Google Patents

Abstract

PURPOSE:To obtain the efficiency of cargo-handling work with a field of view spread by horizontally arranging lower and upper connecting members for connecting the lower and upper of a side frame members so as to form a space part over almost the full range between those connecting members. CONSTITUTION:A lift bracket 1, formed in rectangular frame shape by connecting lower and upper ends of a pair of side frame members 2 by lower and upper connecting members 3, 4, is guided by a groove part of a mast member through a guide roller 10, sideward provided in the side frame member 2, while vertically moved by using a hanging up tool to a chain. Further the side frame member 2 is a plate unit, which is set up with its lengthwise direction vertical further width direction almost in parallel to the center line of a car body, while the lower and upper connecting members 3, 4 are formed by a plate unit with both its lengthwise direction and width direction set up horizontally, and over almost the full range surrounded by these plate units, a space part possible to see through is formed. In this way, a fork F and a cargo, loaded on or unloaded from the fork F, can be visually confirmed through the space part by a driver, and efficiency is obtained in loading work further with safety increased.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention improves the efficiency of loading and unloading cargo onto and from the fork by improving the driver's line of sight to the fork, thereby improving safety. Concerning a lift bracket for a forklift that can be elevated.

[Conventional technology]

As illustrated in FIG. 5, the forklift truck has a fork F attached to a lift bracket l that raises and lowers a mast member M at the front end of a vehicle body A. Therefore, the driver visually recognizes the fork F through the lift bracket 1 between the mast members M, M.

However, this lift bracket has conventionally been constructed as shown schematically in FIG. It was connected using.

Incidentally, above the upper connecting member C, there was arranged a mounting plate d having a hanging piece e for attaching the fork or the like.

(Problem to be solved by the invention) However, such conventional lift plugs) IA
In this case, the space g surrounded by the side frame material asa and the lower and upper connecting members b%C is relatively small. Therefore, when loading and unloading cargo onto or from the fork F, the driver must use this small space g. It is necessary to see through cargo, etc., resulting in a narrow field of view, reducing the efficiency of loading and unloading cargo, making safe and accurate cargo handling difficult, and causing driver fatigue. It was also accompanied by

The present invention solves the above problems by forming the lower and upper connecting members using plates whose length and width are horizontal, thereby enlarging the space between the side frame members and widening the field of view. The purpose is to provide a forklift lift bracket that can solve the problem.

[Means to solve the problem]

The present invention relates to a lift bracket to which a fork of a forklift is attached, which includes a pair of side frame members having a guide roller on the side that rolls in a groove of a mast member, and a lower end connecting the side frame members at their lower ends. a connecting member, and an upper connecting plate that connects the side plates at their upper ends; the side frame member is composed of a plate whose length direction is perpendicular and whose width direction is approximately parallel to the vehicle body center line; and a lower connecting member. and the upper connecting member are formed by plates that are substantially horizontal in both the length direction and the width direction, so that the side frame member,
This is a lift bracket for a forklift, which has a space between a lower connecting member and an upper connecting member that allows substantially the entire surface to be seen through.

[Effect]

The lift bracket of a forklift has a rectangular frame shape in which the lower and upper ends of a pair of side frame members are connected by a lower connecting member and an upper connecting member, and is connected by a guide roller installed on the side frame members by a groove in the mast member. It is guided and can be moved up and down using a lifting device up to the chain. Furthermore, the side frame material is a plate whose longitudinal direction is vertical and whose width direction is approximately parallel to the center line of the vehicle body, and the lower connecting material and the upper connecting material are formed by horizontal plates in both the length and width directions. By doing so, a transparent space is formed over substantially the entire area that they surround. This allows the driver to see the fork and the cargo being loaded onto or unloaded from the fork through the empty space.
Streamline loading work and increase safety.

Note that when the bearing of the protruding portion protruding from the upper end portion of the side frame member is provided with a support shaft for attaching the fork and the tilt frame for tilting the fork, the tilting mechanism of the fork is simplified.

〔Example〕

An embodiment of the present invention will be described below based on the drawings.

In FIGS. 1 to 5, a lift bracket 1 for a forklift has a lower end of a side frame member 2.2 connected to a lower connecting member 3, and an upper end connected to an upper connecting member 4.

Note that a bearing portion 6.6 provided on a protruding portion 5.5 that protrudes from the side frame member 2.2 at the upper end portion of the side frame member 2.2,
Attach the support shaft 7 to which the fork F and the tilt frame T are attached.

The side frame member 2 is a vertically elongated and substantially rectangular plate body, and a guide roller 9, which transfers a groove C (shown in FIG. 5) provided in the mast member M, is provided at the lower end of the outward facing surface and above the side frame member 2. It supports 9. Note that above and below the upper guide roller 9, side rollers 10, 10 whose rotating shafts for rolling in the grooves C are horizontal are arranged. In addition, side roller 1O110
The inner part thereof looks into the notch hole 11 provided in the side frame member 2.

Furthermore, the side frame member 2.2 is arranged vertically in its length direction and substantially parallel to the vehicle body centerline in its width direction.

A tilt cylinder 12 is attached to the lower inward surface of the side frame member 2, and a tilt cylinder 12 is attached to the rear edge of the lower end for attaching a string such as a chain for hoisting the lift bracket l. A triangular stay 14 is attached to the front edge of the lower end to connect the lower connecting member 3 connecting the lower end.
weld.

The lower connecting member 3 is a relatively thick and intermediate plate body, with both the length direction and the width direction being horizontal, and connects the lower end front portions of the side frame members 2.2.

In this example, the upper connecting member 4 is located in front of the side frame member 2.2 at the rear edge of the soil portion 4A, which has an extension portion that extends beyond the side frame member 2. 2.2 It is a plate having a substantially T-shape in plan and provided with a protrusion 4B connected to the upper end and front half of 2, and the protrusion protrudes from the side frame material 2 by the extension of the main portion 4A. 5 is formed.

Further, the protrusion 4B is provided with a notch 16 that widens the field of view by cutting off its rear edge, and the extension is reinforced by a stay 17 that protrudes from the outer surface of the side frame member 2. Further, on the lower surface of the outer edge of the protrusion 5, the bearing piece 6 made of a plate reinforced by the stay 17 and having a hole 20 is provided.
A bearing piece 21 having a hole 20 aligned with the hole 20 is vertically disposed on the lower center surface of the upper connecting member 4, and is arranged parallel to the center line of the vehicle body. A large number of holes 22 for aligning the fork F are transparently provided on the upper surface of the fork.

In this way, the side frame members 2.2 are arranged vertically in the longitudinal direction and approximately parallel to the center line of the plate body in the width direction, and the parent and child and upper connecting members 3.4 are arranged horizontally in both the longitudinal direction and the width direction. As a result, a void G is formed within the space G which is open over almost the entire range except for a small portion such as the tilt cylinder 12, the stay 14, and the bearing portion 21 therein.

A support shaft 7 passes through a hole 20 of the bearing portion 6 to support the tilt frame T and fork F.

The tilt frame T has the lower ends of the support frames 24 and 24 on both sides,
The support frame 24 is connected by a connecting plate 25, and the supporting frame 24 has a hanging piece 29 to which the connecting plate 25 is attached to the inner edge of an inwardly facing horizontal piece at the lower end of the rectangular frame having vertical vertical pieces 26, 27 inside and outside.
has been established. The inner vertical piece 26 is provided with a boss having a hole through which the support shaft 7 passes, and the other vertical piece 27 is provided with a boss having a hole through which the support shaft 7 passes.
The luggage rack can be bolted to the backrest 31 shown in FIGS. 1-3. The joint plate 25 has a notch 32 for see-through on its upper center surface, a reinforcing plate 33 on its rear surface, and contact parts 35 on both sides of which the tilt cylinder 12 abuts. Note that the abutting portion 35 has a screw structure in order to adjust the stroke of the left and right tilt cylinders 12. The fork F has an L-shape, and the support shaft 7 passes through a hole at the upper end thereof, and a positioning pin 39 (first (as shown in the figure).

As described above, the joint plate 25 of the tilt frame T is provided with the notch 32, so that even when the tilt frame T is attached to the lift bracket 1, the gap G of the lift bracket l is provided. The portion covering the fork F is small, so the driver can pass through the space G and see the fork F, luggage, etc.

Further, the fork F and the tilt frame T are attached to the lift bracket 1 using one support shaft 7, which has a simple structure, allows the fork F to be conveniently tilted, and improves workability.

Further, the tilt frame T is tilted around the support shaft 7 by expansion and contraction of the tilt cylinder 12, and the fork F can be tilted from the joint plate 25.

〔Effect of the invention〕

As described above, in the forklift lift bracket of the present invention, by horizontally disposing the lower and upper connecting members that connect the lower and upper side frame members, it is possible to form a space G that spans almost the entire range between them. Loading luggage onto the fork by the driver,
The field of view during loading and unloading can be expanded, improving the efficiency of cargo handling work, preventing fatigue associated with work, and improving work safety and work accuracy.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the present invention when assembled integrally with a tilt frame, FIG. 2 is a side view thereof, FIG. 3 is a plan view thereof, and FIG. 4 is an exploded perspective view thereof. FIG. 5 is a line diagram illustrating a forklift, and FIG. 6 is a perspective view illustrating a conventional lift bracket. 2.-- Side frame material, 3.-- Bottom tie material, 4.--.
Upper connection material, 6.--Bearing section, 7.-- Support shaft,
Lo ・ - ・ - ・ Guide roller, 12- ・ ・ ・ Tilt cylinder, F ・ - ・ ・ ・ ・ Must member, T ・ - ・ - ・ Tilt frame.

Claims (1)

[Claims] 1. A lift bracket to which a fork of a forklift is attached, which includes a pair of side frame members on which guide rollers that roll in grooves of a mast member are provided on the sides, and a lower connecting member that connects the side frame members at their lower ends. , an upper connecting plate that connects the side plates at their upper ends, and the side frame member is composed of a plate whose length direction is perpendicular and whose width direction is approximately parallel to the vehicle body center line, and includes a lower connecting member and an upper connecting plate. The material is a forklift truck that is formed by a plate whose length and width are substantially horizontal, thereby providing a space between the side frame material, the lower connecting material, and the upper connecting material through which substantially the entire surface can be seen. lift bracket.