JPH0322362Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a tilt-quick coupler that is attached to a construction machine such as a truck type loader, a wheel loader, or a bulldozer, or a material handling machine such as a forklift.

<Prior art> In general, construction machines such as those mentioned above are equipped with blades, multi-purpose buckets, log forks, lumber forks, and other working devices (usually referred to as attachments) in order to make them more versatile. A quick coupler is attached for attaching working equipment. Conventionally, this quick coupler consists of a support plate and a mounting bracket attached to the support plate, and the working device is mounted by engaging with a mounting pin disposed on the mounting bracket, and the support plate is It was connected to construction machinery, etc. via a tilt link and lift arm.

<Problems to be solved by the invention> Such a quick coupler tilts forward and backward by extending and contracting the tilt link provided on the vehicle side, and also moves up and down by lifting the lift arm, which allows the work equipment to be However, since the conventional quick coupler itself is connected to the tilt link or lift arm by a pin, it cannot be tilted to the left or right, and the work is limited. It was hot.

<Means for Solving the Problems> In order to solve the problems, the present invention provides a tilt-quick coupler having a mechanism for tilting from side to side. Therefore, in the present invention, the support plate and the mounting bracket are engaged with each other by a pair of pins and two engagement holes, and at least one of the engagement holes is formed into a long hole into which the pin can slide. , the support plate and the mounting bracket are connected by a cylinder, and the support plate is connected to the construction machine through a tilt link and a lift arm so that it can be tilted back and forth and moved up and down, and this support It consists of a mounting bracket attached to the front surface of the plate, and at least one cylinder whose one end is connected to the support plate and the other end is connected to the mounting bracket, and the mounting bracket has mounting pins at the front left and right ends, respectively. A pair of bracket plates that are slidably inserted are fixedly installed, arc-shaped engaging claws are formed on the upper part of the support plate, and a pair of pins are spaced apart from each other on either the support plate or the mounting bracket. The other is provided with an engagement hole into which the pin is inserted, and at least one of the engagement holes is formed into an elongated hole into which the pin can slide. The mounting bracket is characterized by tilting left and right with respect to the support plate.

<Function> The engagement between the support plate and the mounting bracket is improved by providing a pin spaced apart from the left and right on one of the support plate and the mounting bracket, and opening an engagement hole into which the pin is inserted in the other. One of the engagement holes is an elongated hole so that the pin can slide within the elongated hole. Therefore, this slide causes the mounting bracket to rotate around the other pin, and is tilted in the left-right direction. In this case, the ratio of tilting in the left-right direction is greater when two long holes are formed as long holes (in this case, there are two cylinders) than when there is only one long hole. Become. The cylinder functions to provide a driving force for such tilting.

In addition, the upper part of the working device is engaged from above with the arc-shaped engagement claw on the upper part of the support plate, and the lower part is supported by a pair of left and right mounting pins of the mounting bracket, so that the mounting bracket is not affected by the action of the cylinder. When tilted, the working device engages with the engagement pawl and tilts together with the mounting bracket in a suspended state. At this time, the upper part of the working device slides in an arc on the arc-shaped engagement claw part and tilts together with the mounting bracket, but the mounting bracket and support plate are engaged with a pair of left and right pins, and one pin The other pin slides in the long hole in an arc shape, or the pair of pins slides in the long hole in a circular arc shape, using the pin as a fulcrum.

<Embodiment> Figures 1 to 4 show an embodiment of the present invention, and the tilt quick coupler of this embodiment includes an inverted heart-shaped support plate 1 and a support plate 1 attached to the front surface of the support plate 1. The hydraulic cylinder 3 has both ends connected to the support plate 1 and the mounting bracket 2. The support plate 1 has a tilt link 4 extending from a construction machine (not shown) pivotally attached to the upper part of the back surface thereof, and tilts in the front and back direction by expansion and contraction of the link 4, and also extends from the lower part of the back surface thereof. A pair of lift arms 5, 5 are connected and can move up and down as the arms move up and down. Therefore, these allow the working device B to tilt back and forth and move up and down. A pair of bracket plates 6, 6 are formed on the mounting bracket 2, and protrude forward from the left and right ends of a long plate.
Mounting pins 7, 7 are slidably inserted between the bracket plates 6, 6, and each mounting pin 7, 7 is connected to a lever 9 via a link 8, 8. This lever 9 is pivotally supported by a pin 10 provided approximately at the center of the mounting bracket 2, and the rotation of the lever 9 about the pin 10 causes the mounting pins 7, 7 to slide, thereby allowing the working device to B can be quickly and easily attached and detached. Further, the pin 10 is attached to the mounting bracket 2 with a slide groove 2a or a play groove so that it can slide vertically with respect to the mounting bracket 2. FIG. 3 shows a case where a blade is installed as working device B, and the mounting pin 7 is inserted into the fixing bracket 11 at the lower part of the back of the blade, and the hook 12 at the upper center of the back of the blade is inserted into the fixing bracket 11 at the lower part of the back of the blade. The support plate 1 is attached by being engaged with an arc-shaped engagement claw 13 formed on the upper part of the support plate 1. By similarly attaching this mounting mechanism to other front devices such as log forks, lumber forks, buckets, etc., these working devices can be replaced and used at any time. A safety lock device consisting of a locking pin 9a that can be freely inserted and removed or a claw (not shown) is attached to the lever 9, and the movement of the lever 9 is restrained to ensure that the working device is mounted. It is preferable. Reference number 13b is a rib of the engaging claw 13.

A pair of pins 14 and 17 are arranged on the back side of the mounting bracket 2 and are spaced apart from each other on the left and right, while the support plate 1 has the pins 14 and 17 spaced apart from each other.
Engagement holes 15 and 16 are formed into which the mounting brackets 17 are inserted, respectively, so that the mounting bracket 2 and the support plate 1 are engaged with each other. One of the engagement holes 16 is formed into an arc-shaped elongated hole centered on the other engagement hole 15, and the inserted pin 17 is configured to slide within the elongated hole 16. The driving force for this slide is provided by the cylinder 3, and therefore the cylinder 3 is disposed on the long hole 16 side, and the cap end is attached to the mounting bracket 2.
The rod end is pivotally connected to the pin 20 of the support plate 1, and the rod end is connected to the pin 21 of the pivot bracket 18 of the support plate 1.
It is pivotally connected to. This cylinder 3 is comprised of, for example, a double-acting hydraulic cylinder, and is connected to a hydraulic system mounted on a construction machine via a hose 19, so that the cylinder 3 can be operated telescopically.

Therefore, according to this embodiment constructed in this manner, the mounting bracket 2 rotates about the other pin 14 as shown by the chain line in FIG. 4 when the cylinder 3 is operated. Therefore, the working device, such as a blade, mounted on the mounting bracket 2 tilts left and right as the mounting bracket rotates.

5 to 7 show another embodiment of the present invention, and the same parts as in the previous embodiment are given the same reference numerals and the explanation thereof will be omitted. The engaging holes 15 and 16 are both formed as elongated holes, and the cylinders 3 and 3 are
The base is installed. Therefore, when one cylinder 3 is extended and the other cylinder 3 is simultaneously shortened, the pins 14 and 17 slide within the elongated holes 15 and 16, and the mounting bracket 2 is moved from side to side as shown by the dotted and chain lines in FIG. tilt in the direction. Reference number 2b is a housing for attaching the lever 9 to the mounting bracket 2.

This structure has the advantage that the angle of inclination to the left and right can be larger than that of the above-mentioned embodiment in which the cylinder 3 is one.

<Effects of the invention> Since the quick coupler of the invention described above is configured so that the mounting bracket can tilt left and right with respect to the support plate, blade tilting work ( (grooving, finish digging at an angle to the direction of travel, etc.), expanding the scope of work.
When the working device is a fork, even if a long object to be transported such as lumber is inclined, it can be lifted according to the slope, and damage to the object to be transported can be prevented. Furthermore, even if the construction machine loses parallelism during severe work, it can be returned to parallelism by tilting the working device left and right.

In addition, since the support plate and the mounting bracket are only engaged by a pair of pins through the engagement hole, even if dirt enters this part during work, the mounting bracket will not move left or right relative to the support bracket. There is no increase in resistance when tilting. Therefore, the tilting operation is not hindered.

Furthermore, since they are only engaged by pins,
This has the advantage that disassembly and assembly are easy.

[Brief explanation of the drawing]

1 to 4 are a perspective view, an exploded perspective view, a sectional view and a front view of an embodiment of the present invention with a blade, which is a front device, attached, and FIGS. 5 to 7 are perspective views of another embodiment of the present invention. FIG. 2 is a diagram, an exploded perspective view, and a front view. 1...Support plate, 2...Mounting bracket,
3... Cylinder, 4... Tilt link, 5... Lift arm, 6... Bracket plate, 7... Mounting pin, 2... Working device, 13... Engaging claw, 14,
17...pin, 15, 16...engaging hole.

Claims (1)

[Scope of Claim for Utility Model Registration] A support plate that is connected to a construction machine, etc. through a tilt link and a lift arm so that it can be tilted back and forth and moved up and down, and a mounting bracket that is attached to the front surface of this support plate. and at least one cylinder having one end connected to the support plate and the other end connected to a mounting bracket, and the mounting bracket has a pair of bracket plates each having a mounting pin slidably inserted through the front left and right ends thereof. an arc-shaped engagement claw is formed on the upper part of the support plate; a pair of pins are arranged spaced apart from each other on either the support plate or the mounting bracket;
An engagement hole into which the pin is inserted is provided on the other side, and at least one of the engagement holes is formed into a long hole into which the pin can slide, and the mounting bracket is attached to the support plate by the operation of the cylinder. A tilt-quick coupler for construction machinery, etc., which is characterized by tilting from side to side.