Automatic fixing device for forklift attachments

Abstract

To provide an automatic fixing device that enables a forklift driver to detach and fix an attachment such as a sheath fork only by operating the forklift, without getting on or off the forklift. [Solution] The automatic attachment fixing device is a mechanism that fixes or releases the attachment by moving the fixing pin 4 like a seesaw when the forklift moves up and down or back and forth on a dedicated stand 5. When attaching the sheathed fork 1, insert the sheathed fork 1 all the way with the forklift and then raise or lower the forklift, causing the flap to separate from the stand 5 and rotate around the retaining pin 3 due to gravity, causing the flap to touch the top surface of the sheathed fork 1, resulting in state 2, and the fixing pin 4 being in the fixed position to prevent it from coming off. When removing the sheathed fork, lower or advance the forklift and place the sheathed fork 1 on the stand 5, causing state 2 to change to state 6, the position of the fixing pin 4 to drop, the fixation is released, and the sheathed fork 1 can be removed from the forklift.

Description

[Technical Field]

[0001] This invention relates to a forklift attachment equipped with an automatic locking device. [Background technology]

[0002] When replacing an attachment on a forklift, the operator must get off the forklift to install or remove the retaining pins or bolts. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Application No. 5-197420 [Non-patent literature]

[0004] [Non-Patent Document 1] Toyota L&F Product Lineup Saya Fork Set of 2 Summary of the Invention [Problem to be solved by the invention]

[0005] Every time a forklift attachment is changed, the operator must get on and off the forklift, which not only poses a safety issue but also a time and labor burden. Therefore, the present invention aims to solve the above-mentioned drawbacks by automating the attachment fixing mechanism so that the attachment can be fixed or released simply by operating the forklift. [Means for solving the problem]

[0006] Unlike conventional attachments, which are secured by inserting a fixing pin or bolt from the side, this device uses a seesaw-like action of the fixing pin in conjunction with the stand to secure the attachment. The fixing pin is always in the released state when the attachment is placed on the stand. When the forklift is inserted into the attachment and the forklift is raised or reversed away from the stand, the attachment is secured in place to prevent it from coming loose, solving the problem. [Effects of the Invention]

[0007] As described above, the present invention helps reduce the burden on the operator by allowing the operator to secure the attachment without getting on or off the forklift. [Brief explanation of the drawings]

[0008] [Figure 1] 1A and 1B are side and front views of an automatic attachment fixing device for a forklift truck according to the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0009] When the sheathed fork (1) is placed on the dedicated stand (5), the flap (2) lifts up around the axis of the retaining pin (3), creating a state as shown in (6), and the fixing pin (4) drops down, releasing the fixation. [Example]

[0010] An embodiment will now be described with reference to the accompanying drawings. First, when installing the forklift, insert fork 1 all the way into the forklift and then raise or lower the forklift. Then the flap in state 6 separates from the stand 5 and rotates around the retaining pin 3 due to gravity. When the flap in state 3 touches the top of the fork 1, it changes to state 2 and the fixing pin in state 4 takes on a fixed position to prevent it from coming off. Similarly, if you want to remove the fork, move the forklift towards the stand 5, lower or move forward, and place the fork 1, which will change it to state 6, and the fixing pin in state 4 will drop and be released from the lock, and you can then move the forklift back to remove the fork. [Industrial Applicability]

[0011] This product is a fixing device that can be applied not only to sheath forks but also to all attachments used on forklifts. It does not have a complicated mechanism, is inexpensive, has a small number of parts, and is easy to increase in strength to match the size of the forklift. However, due to the nature of the attachment being secured using gravity, rotating forks in which the forklift tines themselves rotate and turn upside down can cause the flaps to move due to gravity, which can cause the fixing pin to come loose and the attachment to fall off, so measures such as applying tension in the fixing direction using a spring or similar are necessary. [Explanation of symbols]

[0012] 1. Sayafork 2. Fixed position flap 3 retaining pins 4 fixing pins 5 Stand 6 Flap in unlocked position

Claims

[Claim 1] An automatic attachment fixing device with a mechanism that automatically fixes insert-type attachments, such as sheath forks used on forklifts, to the forklift and releases the fixation by placing it on a special stand.

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