JPH0573045U - Clam bucket equipment - Google Patents

Abstract

(57) [Summary] [Object] To provide a clam bucket device capable of digging a groove having a relatively short width or cleaning the groove by placing a hydraulic excavator car in one of the grooves. [Structure] Left and right buckets 13 and 14 to be opened and closed
And a crumb bucket device 1 mounted on the tip of a bendable arm 11 of a hydraulic excavator via a pin 21.
0, and a mounting base 1 mounted on the tip of the arm 11 so as to be tiltable in the same direction as the bending direction of the arm 11.
2, the left and right buckets 13 and 14 mounted on the lower part of the mounting base 12 so as to be openable and closable in a direction orthogonal to the tilting direction of the mounting base 12, and the left and right buckets 13,
And a hydraulic cylinder 15 which is provided on the upper portion of 14 to open and close the bucket.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a clam bucket device that is attached to a drive arm of a hydraulic excavator car and is suitable for performing civil engineering work or cleaning work.

[0002]

[Prior Art]

 As shown in FIG. 3, a bucket device 50 attached to a conventional hydraulic shovel car includes an arm 51 of the hydraulic shovel car, a main bucket 52 that bends in the same direction as the bending direction of the arm 51, and a sub bucket 53. And a structure in which it is driven to open and close by expansion and contraction of a hydraulic cylinder (not shown) showing only the rod portion 54.

[0003]

[Problems to be solved by the device]

 However, since the main bucket 52 of the bucket device 50 rotates only in the bending direction of the arm 51, when excavating a groove having a relatively short width or when cleaning the groove, a hydraulic excavator is installed in the groove. It is necessary to place the bridge so as to straddle it, and if the shoulder of one groove does not have sufficient strength, or if the width of the shoulder of one groove is narrow, the above work may not be possible. There was a problem. The present invention has been made in view of such circumstances, and for example, an object thereof is to provide a clam bucket device capable of digging a groove having a relatively short width or cleaning the groove by placing a hydraulic shovel car in one of the grooves. And

[0004]

[Means for Solving the Problems]

 A clam bucket device according to the present invention that meets the above object is a clam bucket device that includes a pair of left and right buckets that open and close, and that is attached to the tip of a bendable arm of a hydraulic excavator via a pin. A mounting base mounted on the tip of the arm so as to be tiltable in the same direction as the bending direction of the arm, and a mounting base mounted on the lower part of the mounting base so as to be openable and closable in a direction orthogonal to the tilting direction of the mounting base. It is configured to have left and right buckets and a hydraulic cylinder that is provided above the left and right buckets and that opens and closes the buckets. In the above description, "to be tiltably mounted in the same direction as the bending direction of the arm" means that the mounting base can be tilted on a plane on which the arm bends or on a plane substantially parallel to the plane. Say that.

[0005]

[Action]

 In the clam bucket device according to the present invention, a mounting base is attached to the tip of the arm so as to be tiltable in the same direction as the bending direction of the arm, and is mounted on the lower part of the mounting base in a direction orthogonal to the tilting direction of the mounting base. Since the left and right buckets are attached so that they can tilt, opening and closing of the buckets are orthogonal to the bending direction of the arms. Therefore, the hydraulic excavator car can be arranged, for example, on one side of the groove to clean, excavate, etc. the groove lying in the front part of the hydraulic shovel car.

[0006]

【Example】

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. FIG. 1 is a rear view of a clam bucket device according to an embodiment of the present invention, and FIG. 2 is a side view of the same.

As shown in FIGS. 1 and 2, a clam bucket device 10 according to an embodiment of the present invention is made of a material having sufficient strength (for example, steel), and is mounted on a hydraulic excavator (not shown). A mounting base 12 mounted on the front end of an arm 11 that is swung, tilted, and bent by a hydraulic pressure source, left and right buckets 13 and 14 that are openably and closably mounted on the lower part of the mounting base 12, and the left and right buckets. The hydraulic cylinder 15 is provided on the upper portion of the buckets 13 and 14 to open and close the buckets 13 and 14. These will be described in detail below.

The mounting base 12 includes two upper plates 16 and 17 facing each other, an intermediate plate 18 that fixes lower ends of the upper plates 16 and 17, and the upper plates 16 and 17 on the intermediate plate 18. It has two opposite lower plates 19 and 20 mounted in direct contact with each other. One end of each of the upper plates 16 and 17 has a mounting hole that is rotatably attached to the tip of the arm 11 via a pin 21, and the other end has a mounting hole to which a link member 22 is attached via a pin 23. It is provided. An intermediate arm plate 24 and a metal fitting 26 attached to the tip of a rod portion 25 of a hydraulic cylinder (not shown) are rotatably attached to the other end of the link member 22 via a pin 27. There is.

Opposite buckets 13 and 14 are provided below the lower plates 19 and 20, and a well-known link mechanism 28 is provided to the buckets 13 and 14, and one end thereof is provided by a pin 29. The left and right buckets 13 and 14 are opened and closed synchronously by a hydraulic cylinder 15 rotatably attached to the lower plates 19 and 20. In the drawing, 31 and 32 are support plates for the buckets 13 and 14, 33 and 34 are pins for mounting the support plates 31 and 32, and 35 is a connection between the left and right support plates 31 and 32. The connecting member which comprises the said link mechanism 28 is shown.

Therefore, when the clam bucket device 10 is used, when the clam bucket device 10 is attached to the tip of the arm 11 and the rod 25 of the hydraulic cylinder (not shown) is moved back and forth, the pin 21 becomes the center. The clam bucket device 10 tilts, whereby the excavation or scooping angle of the lower buckets 13 and 14 can be adjusted. Then, the buckets 13 and 14 can be opened and closed by expanding and contracting the hydraulic cylinder 15, whereby operations such as excavation and cleaning of grooves can be performed. Further, the working angle of the buckets 13 and 14 can be freely changed by moving the rod 25 of the hydraulic cylinder (not shown) forward and backward.

[0011]

[Effect of the device]

 In the clam bucket device according to claim 1, as is apparent from the above description, the opening / closing direction of the bucket provided in the lower portion is orthogonal to the bending direction of the arm to which the clam bucket device is attached. Therefore, it is possible to perform the work of opening and closing the bucket laterally with respect to the arm. Therefore, for example, when excavating or cleaning a comparatively narrow groove, the hydraulic shovel car body can be placed on one side outside the groove, and the work can be performed, so that the work such as excavation or cleaning can be performed extremely efficiently. It Further, by changing the direction of the bucket, it is possible to freely perform not only the downward work with respect to the arm but also the work in the front direction and the ceiling direction.

[Brief description of drawings]

FIG. 1 is a rear view of a clam bucket device according to an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a side view of a bucket device according to a conventional example.

[Explanation of symbols]

 10 Clam Bucket Device 11 Arm 12 Mounting Frame 13 Bucket 14 Bucket 15 Hydraulic Cylinder 16 Upper Plate 17 Upper Plate 18 Intermediate Plate 19 Lower Plate 20 Lower Plate 21 Pin 22 Link Member 23 Pin 24 Intermediate Arm Plate 25 Rod Part 26 Metal Fitting 27 Pin 28 Link mechanism 29 pin 31 support plate 32 support plate 33 pin 34 pin 35 connecting member

Claims (1)

[Scope of utility model registration request] 1. A clam bucket device equipped with a pair of left and right buckets to be opened and closed and attached to a tip end of a bendable arm of a hydraulic excavator via a pin, wherein the arm bends at the tip end of the arm. Of the left and right buckets, and the left and right buckets attached to the lower part of the mounting base so as to be openable and closable in a direction orthogonal to the tilting direction of the mounting base. A clam bucket device, comprising: a hydraulic cylinder provided at an upper portion to open and close the bucket.