JPH0687451U - Construction machine sandwiching bucket - Google Patents

Abstract

(57) [Summary] [Purpose] In construction machines such as power shovels, in addition to normal excavation and loading work, handling work such as wood and boulders should be facilitated. [Structure] The bucket is divided into upper and lower parts, and the lower part of the bucket is further divided into left and right parts, and a left bucket 3 and a right bucket 4 are pivotally attached to an upper bucket 1 via a hinge 2 so as to be swingable.
The bucket opening / closing cylinder 5 is expanded / contracted to open / close the left bucket 3 and the right bucket 4 in the left / right direction, and the work object is sandwiched. The sandwiching plate 6 welded to the outer surfaces of the bottom portions of the left bucket 3 and the right bucket 4 projects from the dividing surface of the bucket and has a substantially knife-edge shape, so that the work object is reliably sandwiched. Further, since the left and right holding plates 6 are welded so as to be arranged alternately when the left bucket 3 and the right bucket 4 are closed and the divided surfaces are brought into contact with each other, they do not interfere with each other and a normal excavation and loading operation can be performed. Can be carried out without hindrance.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sandwiching bucket for a construction machine.

[0002]

[Prior art]

 Construction machines such as power shovels and backhoe dozers are mainly used for excavating and loading earth and sand.However, construction materials are stored in a bucket attached to the tip of the working machine and moved, or sling wires are used. The work content is diverse, such as suspending and moving the work target at the tip of the work machine.

[0003]

[Problems to be solved by the device]

 In a power shovel equipped with a normal bucket, when moving wood or fume pipes or boulders of a size that cannot be bitten by the bucket by the operator alone or when loading on a truck, take time to skillfully use the bucket. The wood, fume pipes, boulders, etc. are rolled by the blade edge of the bucket or pushed up and loaded while rolling on the step board laid on the truck bed. This kind of work requires skill in machine operation, and it may take a lot of time to move or load the machine to the position intended by the operator. When there is an auxiliary worker in addition to the operator, one end of timber, boulders, etc. is supported or fixed to move or load, but this kind of work is extremely difficult for the auxiliary worker. It is dangerous and the operator's mental fatigue is great. The one shown in FIG. 5 has a sandwiching member 12 provided so as to face the bucket 11 so as to rotate around a fulcrum 14 by means of a hydraulic cylinder 13, but a long timber or the like can be sandwiched but it is long. You cannot lean in the direction. The present invention has been made in view of the above-mentioned conventional problems. In addition to the usual excavation and loading work, a construction machine that can safely handle timber, boulders, etc., whenever necessary. The aim is to provide a sandwiching bucket for

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the sandwiching bucket of the construction machine according to the present invention divides the lower part of the bucket into left and right along the opening direction of the bucket, and the side plates of the divided lower part of the bucket are respectively divided into the left and right side plates of the upper part of the bucket. In addition to being pivotally mounted, a link mechanism that opens and closes the lower portion of the bucket in a direction perpendicular to the opening direction of the bucket by expansion and contraction of the hydraulic cylinder is provided. A plurality of strip-shaped holding plates are welded to the outer surface of the bottom of the bucket at right angles to the dividing surface of the bucket at equal intervals, and the tip of the holding plate is projected from the dividing surface, and the shape of the projecting portion is formed by a knife. When the split surfaces of the lower part of the left and right buckets are brought into contact with each other, they are edge-shaped, and the gripping plates welded to the bottom of the left and right buckets. The rates were arranged so that they were arranged alternately.

[0005]

[Action]

 According to the above configuration, the bucket is divided into the upper bucket and the lower bucket, the lower bucket is further divided into the left and right, and the lower bucket is pivotally attached to the upper bucket so that the hydraulic cylinder can be expanded and contracted. By opening and closing the lower part of the bucket in the left-right direction, the work object can be clamped by the lower part of the bucket. The clamping plate welded to the outer surface of the bottom of the lower part of the bucket projects from the dividing surface of the bucket, and the tip shape is almost a knife edge, so it is necessary to securely clamp the work object with the tip of the clamping plate. You can Also, when the lower part of the bucket was closed and the divided surfaces were brought into contact with each other, the left and right sandwiching plates were welded to the outer surface of the bottom of the bucket so that they would be arranged alternately. You can perform the complicated work without any problems.

[0006]

【Example】

 An embodiment of a sandwiching bucket for a construction machine according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the sandwiching bucket, and FIG. 2 is a rear view of the sandwiching bucket, both of which show a state where the bottom of the bucket is opened to the left and right. FIG. 3 is a side view of the sandwiching bucket, and FIG. 4 is a front view showing a state where wood is sandwiched in the sandwiching bucket. In these figures, the bucket is composed of an upper bucket 1 having a rectangular frame shape, a left bucket 3 and a right bucket 4 which are connected to the lower ends of the left and right side plates of the upper bucket 1 by hinges 2. . The left bucket 3 and the right bucket 4 are divided into left and right along a center line AA in FIG. 2 and are swingable around the hinge 2 as a fulcrum. The front plate 1a of the upper bucket 1 extends below the hinge 2, and on the back surface of the upper bucket 1, there is a rear plate 1b whose upper end is higher than the upper edge of the upper bucket 1 and whose lower end extends below the hinge 2. It is provided. The front plate 1a and the back plate 1b are arranged to overlap the bottom plates 3a and 4a of the buckets when the left bucket 3 and the right bucket 4 are closed. The upper part of the back plate 1b is divided into right and left parts, and the upper ends thereof are U-shaped in cross section, and pin holes for axially mounting the bucket opening / closing cylinder 5 are provided. Further, a plurality of holding plates 6 made of a steel plate having high wear resistance are welded to the outer surfaces of the bottom portions of the left bucket 3 and the right bucket 4 at equal intervals in a direction perpendicular to the bucket dividing surface. Has a knife-edge shape and protrudes from the dividing surface of the left bucket 3 and the right bucket 4. The holding plates 6 are arranged such that the holding plates of the left bucket 3 and the right bucket 4 are alternately arranged so as not to interfere when the divided surfaces of the left bucket 3 and the right bucket 4 are brought into contact with each other. It is welded.

One end of a hinge 2 that connects the upper bucket 1, the left bucket 3, and the right bucket 4 projects from the left and right rear surfaces of the bucket, and link plates 7 a and 7 b formed of two substantially triangular plates are projecting portions of the hinge 2. It is welded to the outer periphery and the side plates 3b and 4b of the left bucket 3 and the right bucket 4, respectively. The link plates 7a, 7b are provided with pin holes for pivotally mounting the bucket opening / closing cylinders 5, and the bucket opening / closing cylinders 5 are installed between the pin holes of the back plate 1b and the pin holes of the link plates 7a, 7b, respectively. It is worn. Further, 8 is a bucket tooth, 9 is an arm of a hydraulic excavator, 10 is an arm connecting pin, 11 is a piston cylinder piston rod, 12 is a bucket tilt lever, 13 is a bucket operation lever, and 14 is a bucket operation lever connection. It's a pin.

When sandwiching wood, fume pipes, boulders, etc., after moving the bucket above the work object, the bucket opening / closing cylinder 5 is driven to the push side to move the left bucket 3 and the right bucket 4 to the left and right. open. When the arm 9 is lowered in this state and the bucket opening / closing cylinder 5 is driven to the retracting side, as shown in FIG. 4, the tip of the sandwiching plate 6 welded to the outer surfaces of the bottom portions of the left bucket 3 and the right bucket 4 removes wood 15 or the like. It can be pinched. After that, the arm 9 may be raised and moved to a desired position.

The holding plate 6 not only has a function of reliably holding wood, boulders and the like to prevent falling, but also has a function as an abrasion material for preventing abrasion of the bottom surface of the bucket during excavation work which is an original function of the bucket. Have Further, since the sandwiching bucket according to the present invention can open and close the lower part of the bucket in the left-right direction, if the bucket opening / closing cylinder 5 is driven instead of the dumping operation of the bucket when discharging the excavated earth and sand, the bucket can be opened and closed. It can be discharged directly below.

[0010]

[Effect of device]

 As described above, according to the present invention, a bucket to be mounted on a construction machine such as a power shovel is divided into a bucket upper part and a bucket lower part, and the bucket lower part is further divided into left and right parts. Since the lower part of the bucket can be opened and closed in the left and right directions by rotatably pivoting and expanding and contracting the hydraulic cylinder, it is possible to easily clamp work objects such as wood and boulders under the bucket by operating the work machine lever. it can. In addition, a long timber or the like that has been sandwiched can be hung up in the longitudinal direction. In addition, the clamping plate welded to the outer surface of the bottom of the bucket described above protrudes from the dividing line of the bucket, and the tip shape is almost knife-edge-shaped, so that the work object is reliably clamped by the tip of the clamping plate. The efficiency and safety of handling work on timber and boulders are improved. Furthermore, since relatively soft materials such as wood can be bitten off by the sandwiching plate, it is possible to easily dismantle wooden structures.

[Brief description of drawings]

FIG. 1 is a perspective view of a sandwiching bucket.

FIG. 2 is a rear view of the sandwiching bucket.

FIG. 3 is a side view of a sandwiching bucket.

FIG. 4 is a front view showing a state where wood is sandwiched in a sandwiching bucket.

FIG. 5 is a side view of a conventional sandwiching bucket.

[Explanation of symbols]

 1 Upper Bucket 2 Hinge 3 Left Bucket 3a, 4a Bottom Plate 3b, 4b Side Plate 4 Right Bucket 5 Bucket Open / Close Cylinder 6 Clamping Plate 7a, 7b Link Plate

Claims (3)

[Scope of utility model registration request] 1. A lower part of a bucket is divided into left and right along an opening direction of the bucket, side plates of the divided lower part of the bucket are pivotally attached to left and right side plates of the upper part of the bucket, respectively, and the hydraulic cylinder is expanded and contracted to expand and contract. A sandwiching bucket for a construction machine, comprising a link mechanism for opening and closing a lower portion of the bucket in a direction perpendicular to the opening direction of the bucket. 2. A plurality of strip-shaped sandwiching plates are welded at regular intervals to the outer surface of the bottom of each of the lower parts of the bucket that is divided into left and right parts at a right angle to the dividing surface of the bucket, and the tips of the sandwiching plates are attached to the divided faces. 2. The sandwiching bucket for a construction machine according to claim 1, wherein the shape of the protruding portion is substantially knife-edge-shaped, while the protruding bucket is protruded from the inside. 3. The sandwiching plates welded to the bottoms of the left and right buckets are arranged so as to be alternately arranged when the split surfaces of the lower left and right buckets are brought into contact with each other. No. 1 construction machine sandwiching bucket.