JPH04122595U - forklift truck - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] To enable one type of fork to be used for both fork work and container work without increasing the overall height or weight of the forklift truck. [Configuration] On the front of the lift bracket 92, there is an upper engagement part 9.
22 and a lower engaging portion 923 are provided. A main locking portion 12 that locks onto the upper engaging portion 922 is provided at the intermediate portion of the rising portion 11 of the fork 1 . Further, the rising portion 11 is provided with sub-locking portions 131 and 132 above and below the main locking portion 12, respectively, which selectively lock onto the lower engaging portion 923. FIG. 1 shows the fork in a working state, and the sub-locking part 132 is locked to the lower engaging part 923. When switching between fork work and container work, the mounting direction of the fork 1 is turned upside down and the sub-locking part 131 is locked to the lower engaging part 923. Then insert the container spreader attachment into the fork.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to forklift trucks, specifically forklift trucks. This invention relates to a fork mounting structure in a fork.

0002

[Prior art]

Generally, forklift trucks are used for so-called fork work. A fork for carrying out container work and a fork for carrying out so-called container work are made separately. , These forks are selectively attached to the lift bracket depending on the cargo handling work. That's what I do. Here, fork work refers to work in which cargo is handled directly using forks. . Container work also refers to container work using a spreader device attached to a fork. Refers to the work of handling cargo.

0003 As shown in FIG. 6, the fork 91 for fork work has a rising portion 911. A main locking part 912 and a sub-locking part 913 are provided at the upper and lower parts, respectively. one On the other hand, on the front surface of the lift bracket 92 that moves up and down along the mast 93, there is an upper engagement part 9. 22 and a lower engaging portion 923 are provided. The upper engaging portion 922 includes a shaft. The main locking portion 912 is locked through the gate 925. In addition, the lower engaging portion 923 locks the secondary locking portion 913. In this way, both the engaging portions 922 and 923 allow the rising portion 91 of the fork 91 to 1 is supported by two points. In addition, in FIG. 6, the reference numeral 914 indicates the guide of the fork 91. Showing Drora. Also, reference numeral 921 is the lift roller of the lift bracket 92; 926 is the rear plate, 927 is the finger bar, and 924 is the roller guard. Indicates the ID side.

0004 In addition, as shown in FIG. 7, the rising part 941 of the container working fork 94 corresponds to the upper engaging part 922 and lower engaging part 923 of the lift bracket 92, A main locking portion 942 and a sub-locking portion 943 are provided, respectively. Note that in Figure 7 , 95 is a spreader device, and 951 is its twist lock pin. By the way, forklift trucks are equipped with low-mounted spreaders. Sometimes a position is used. As shown in Figure 8, this method uses a fork work fork. The spreader device 95 is inserted into and attached to the rack 91.

[0005]

[Issue to be solved]

However, in conventional forklift trucks, the fork work lever is Because the shapes of the fork and the fork for container work are different, two types of dedicated forks are available. It was necessary to create a fork. In addition, as shown in Figure 8, when carrying out container cargo handling, the container (not shown), the height from the ground to the twist lock pin 951 However, work must be carried out only at a height H of 2300 mm or more. However, low mount When the spreader device 95 is attached to the fork working fork 91 using the method, In this case, the height position H of the twist lock pin 951 is such that the spreader device 95 is When lowered, it is almost at ground level.

[0006] Therefore, in order to ensure the lift height of the spreader device 95, the height of the mast 93 must be You need to set it high. However, if the mast 93 is made higher, the entire forklift truck The height and weight will increase significantly. As a result, improvements in driving performance, manufacturing costs, etc. Failure to do so may cause problems. In view of these conventional problems, the present invention has been developed without increasing the overall height or weight. One type of fork can be used for both fork work and container work. , We are trying to provide forklift trucks.

[0007]

[Means for solving problems]

This invention has an upper engaging part and a lower engaging part on the front of the lift bracket that moves up and down along the mast. A fork in which a rising part of the fork is supported at two points by both engaging parts. In the lift truck, the rising part of the fork has the above-mentioned lift in the middle part. It has a main locking part that locks to the upper locking part of the foot bracket, and At the bottom, there is a secondary locking part that selectively locks with the lower engaging part of the lift bracket. Each forklift truck is characterized by having:

[0008] The most noteworthy thing about this invention is that the main locking part is located at the rising part of the fork. Two sub-locking parts are provided above and below, and the lower engagement part of the lift bracket is The structure is such that the sub-locking portion can be attached to either the upper or lower side of the fork. In this invention, the above-mentioned upper engagement part on the lift bracket side and the above-mentioned main engagement part on the fork side The locking structure with the stop part is a structure in which both are formed into a hook shape and interlock with each other. , there is a structure in which the two are connected via a shaft. This hook support structure is mainly Applies to small cars. On the other hand, shaft support structures are mainly applied to large vehicles. In the above shaft support structure, the main locking part is of the so-called flange type. It is desirable (see FIGS. 4 and 5). This allows you to remove the shaft without having to remove it. It is possible to change the mounting direction of the fork simply by attaching and detaching the flange.

[0009] The above secondary locking parts are installed above and below the main locking part at the rising part of the fork. Let's go. The distance between the secondary locking part placed above and the main locking part and the secondary locking part placed below. The distance between the stop part and the main lock part is the same distance, and these distances are the same as the above-mentioned upper engaging part. and the lower engaging portion (see FIG. 1). In addition, if a guide roller is installed on the above rising part, the guide roller should also be installed. Similar to the secondary locking part above, it is desirable to provide them above and below the main locking part, respectively. stomach. This allows for both fork work and container work. , it becomes possible to slide the fork smoothly in the vehicle width direction.

0010

[Action and effect]

In this invention, the fork is not raised up against the upper engagement part of the lift bracket. The main locking part of the rear part is locked. Also suitable for fork work or container work. Depending on the lift bracket, either the upper or lower part of the rising part can be attached to the lower engaging part. The secondary locking portion is selectively locked. When switching between fork work and container work, first Remove the fork from the lift bracket. Next, change the mounting direction of the fork up and down. Reverse it. In this state, hold the lift bracket against the upper and lower engaging parts. The main locking portion and one of the sub-locking portions of the rising portion of the fork are locked.

[0011] In this way, the forks can be installed upside down when working in containers, so It is not possible to significantly increase the overall height and weight of a forklift truck as in the past. do not have. Therefore, according to the present invention, one type of fork can be used without increasing the overall height and weight. A forklift truck that allows fork work and container work to be carried out at the same time. A foot truck can be provided.

0012

【Example】

Example 1 1 to 3 are used for the forklift truck according to the first embodiment of the present invention. I will explain. The fork of this example has a so-called shaft support structure. In this example, as shown in Fig. 1, the rising part 11 of the fork 1 is It has a main locking part 12 that locks on the upper engaging part 922 of the lift bracket 92 in the middle part. ing. In addition, the rising portion 11 is provided above and below the main locking portion 12 with a lift block. The auxiliary locking parts 131 and 132 that selectively lock the lower engaging part 923 of the racket 92 are attached thereto. Each has their own.

[0013] As shown in FIGS. 1 and 2, the main locking portion 12 is a rising portion 1 of the fork 1. It is protruding from the back of 1. The main locking part 12 has a shaft insertion hole 120 in the horizontal direction. Through the shaft 925 inserted into the shaft insertion hole 120, The main locking portion 12 is locked to the upper engaging portion 922. The above-mentioned sub-locking parts 131 and 132 are located on the back side of the rising part 11 of the fork 1. , are arranged above and below the main locking part 12 by a certain distance L1, respectively. It has been set up. This constant distance L1 is between the upper engagement portion 922 and the lift bracket 92. The distance corresponds to the distance between the lower engaging portions 923. That is, the relationship of distance L1=distance L92 It is in. Both sub-locking parts 131 and 132 are formed in a hook shape, and are used for fork work or Depending on the container work, either one of the secondary locking parts 131 and 132 can be attached to the lift block. It is made to engage with the lower engaging portion 923 of the racket 92. The rest is the same as the conventional example. In addition, in FIG. 2, the reference numeral 928 indicates a The side plate of the bracket 92 is shown.

[0014] The forklift truck in this example is configured as described above, so it can be used for the following operations. It has a useful effect. In other words, when performing fork work, as shown in Figures 1 and 2, The main locking portion of the rising portion 11 of the fork 1 is connected to the upper engaging portion 922 of the socket 92. 12 is locked via the shaft 925. In addition, the lower part of the lift bracket 92 The sub-locking portion 132 of the rising portion 11 is locked to the joint portion 923. When switching from fork work to container work, first 925 in the horizontal direction and slide the fork 1 toward the center of the vehicle. this Thus, the fork 1 can be removed from the lift bracket 92.

[0015] Next, as shown in FIG. 3, the mounting direction of the fork 1 is turned upside down. in this state , the rising portion 1 of the fork 1 with respect to the lower engaging portion 923 of the lift bracket 92. The secondary locking portion 131 of No. 1 is locked. In addition, the upper engaging portion 922 of the lift bracket 92 On the other hand, the main locking portion 12 of the rising portion 11 of the fork 1 is connected via the shaft 925. and lock it. In this way, according to this example, one type of fork 1 can handle both fork work and container work. It can be used for both work and work. In addition, in container work, mast 93 is used like the conventional low mount system. There is no need to increase the height. Therefore, the overall height of the forklift truck in this example is In this respect, it is possible to keep the weight of the forklift to a minimum. Better than Totrak.

[0016] Example 2 The forklift truck of this example will be explained using FIG. 4. In this example, fork 2 is used instead of fork 1 shown in Example 1 above. There is. The fork 2 has an upright portion instead of the main locking portion 12 shown in the first embodiment. A main locking part 22 is provided in the middle part of the part 11. The main locking portion 22 is a so-called It is a flange type, and the locking part main body is fixed to the back of the rising part 11. 221, and a flange 22 fixed to the locking part main body 221 with fixing bolts 223. 2 and more. The rest is the same as in the first embodiment.

[0017] The forklift truck in this example is configured as described above, so it can be used for the following operations. It has a useful effect. That is, the fork of Example 1 can switch between fork work and container work. Whereas it was sometimes necessary to insert and remove the shaft, the fork 2 of this example is fixed. Just by attaching and detaching the flange 222 using the fixed bolts 223, the lift bracket 92 The fork 2 can be attached to and detached from the fork. Therefore, fork work and content It is possible to easily switch between the work and the work. In addition, the effects of the first embodiment can also be obtained.

[0018] Example 3 The forklift truck of this example will be explained using FIG. 5. In this example, a fork 3 is used instead of the fork 2 shown in the second embodiment. There is. The main locking portion 32 of the fork 3 is the same as the main locking portion 22 shown in the second embodiment. In place of the stopper main body 221, a stopper main body 321 is used. The main body of the locking part 321 is provided diagonally downward and protrudes from the back surface of the intermediate portion of the rising portion 11 of the fork 3. be. The rest is the same as in the second embodiment.

[0019] Since the forklift truck of this example is configured as described above, The same effects as in Example 2 can be obtained. Furthermore, since the locking portion main body 321 is provided to protrude diagonally downward, the fork 3 The applied downward load can be received by the locking portion main body 321. Therefore, The fork 3 has excellent durability.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a main part showing a state in which a forklift truck according to a first embodiment performs fork work.

FIG. 2 is a front view of main parts showing a state similar to FIG. 1;

FIG. 3 is a side sectional view of a main part showing a state in which the forklift truck of Example 1 performs container work.

FIG. 4 is a side view of a main part of a fork according to a second embodiment.

FIG. 5 is a side view of a main part of a fork according to a third embodiment.

FIG. 6 is a side sectional view of a main part showing a state in which a conventional forklift truck performs fork work.

FIG. 7 is a side sectional view of main parts showing a state in which a conventional forklift truck performs container work.

FIG. 8 is a side cross-sectional view of a main part showing a state in which a spreader device is attached to a conventional fork for fork work.

[Explanation of symbols]

1. ．． ．． fork, 11. ．． ．． rising part, 12. ．． ．． Main locking part, 131, 132. ．． ．． Secondary locking part, 2. ．． ．． fork, 22. ．． ．． Main locking part, 222. ．． ．． flange, 3. ．． ．． fork, 32. ．． ．． Main locking part, 92. ．． ．． lift bracket, 922. ．． ．． upper engagement part, 923. ．． ．． lower engagement part, 93. ．． ．． mast,

Claims (1)

[Scope of utility model registration request] Claim 1: A forklift truck in which an upper engaging part and a lower engaging part are provided on the front surface of a lift bracket that moves up and down along the mast, and the rising part of the fork is supported at two points by both engaging parts. The rising part has a main locking part that locks with the upper engaging part of the lift bracket in its middle part, and a lower engaging part of the lift bracket above and below the main locking part. A forklift truck characterized in that each of the forklift trucks has a sub-locking part that selectively locks the parts.