JPH0742346U - Forklift fall prevention structure - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] The lower leg of the forklift undercarriage is used to prevent the vehicle from overturning, while enabling high-speed running and simultaneous operation of cargo and a large cycle time. To improve. [Construction] A guide rail 3 is provided at a lower portion of a rack 1 standing upright with a traveling passage of a forklift provided, and a top portion of the guide rail 3 is provided at a predetermined distance from an upper portion of a lower leg protruding outward at a lower portion of a forklift vehicle body. The top plate 4 is fixedly installed to prevent falling.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fall prevention structure for a forklift that significantly improves the cycle time while using a straddle arm that projects outward at the bottom of the forklift to prevent the fall.

[0002]

[Prior art]

 Conventionally, since there is a risk of falling when the forklift is accelerated or stopped suddenly at high lift, the mast is equipped with a lift detector, and when the lift detector operates, the travel speed control device slows down. However, if the lift operating lever is operated within the hydraulic operating lever provided on the forklift, the travel control circuit of the travel control device is cut off, and the lifting operation and the traveling operation cannot be performed at the same time.

[0003]

[Problems to be solved by the device]

 In the case of a fork lift that requires a rack height of 12m, which requires a high lift of 12m, the fork lift speed will slow down when the above-mentioned lift is reached, or the traveling operation will be stopped when the fork is lifted. However, there was a problem that the cargo handling work took a long time and the cycle time could not be satisfied. The present invention has devised a solution to the above-mentioned problem without using the structure having a simpler structure and decelerating as described above.

[0004]

[Means for Solving the Problems]

 According to the present invention, a guide rail is provided in the lower part of a rack standing upright with a forklift travel path interposed therebetween, and a guide rail is provided above the guide rail at a predetermined distance from an upper part of a straddle arm projecting outward at a lower part of the forklift body. The top plate is fixed to the above.

[0005]

[Operation] When the forklift 5 is traveling in the traveling passage 2 between the racks 1 and 1 at a high speed, when the forks are about to fall with the ascending movement of the forks 8, the upper portion of the straddle arm 6 hits the top plate to fall. Deter.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a plan view showing the embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a perspective view of a forklift 5. Is. In the figure, racks 1 and 1 are erected, a traveling passage 2 is formed between the racks 1 and 1, guide rails 3 are fixedly installed on the lower portions of the racks 1 and 1, and upper portions of the guide rails 3 are fixed. A top plate 4 made of an angle member is fixed. The forklift 5 traveling in the traveling passage 2 has a pair of straddle arms 6 projecting forward of the vehicle body 5A, and a mast 7 is arranged between the straddle arms 6 and 6. The mast 7 is horizontally moved and turned in the horizontal direction. A fork 8 capable of moving is attached so as to be able to move up and down.

[0007]

[Effect of device]

 According to the present invention, when the vehicle is about to fall due to the above-described configuration, the entire straddle arm that projects forward without attaching any member to the vehicle body makes contact with the top plate to prevent the vehicle from tipping over with an extremely simple configuration. be able to. Since the fall can be prevented as described above, the traveling operation can be performed simultaneously with the lifting operation of the fork, so that the cargo handling operation can be shortened and the cycle time can be greatly improved.

[0008]

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a perspective view of a forklift.

[Explanation of symbols]

 1 rack 2 traveling passage 3 guide rail 4 top plate 5 forklift 5A vehicle body 6 straddle arm 7 mast 8 fork

Claims (1)

[Scope of utility model registration request] 1. A guide rail is provided at a lower portion of a rack standing upright with a travel passage of a forklift provided therebetween, and a guide rail is provided above the guide rail at a predetermined distance from an upper portion of a straddle arm projecting outward at a lower portion of the forklift vehicle body. A top plate is fixed to the top to prevent the forklift from falling.