JP3051771U - Clamp bucket - Google Patents

Abstract

(57) [Summary] [Objective] To obtain a clamp bucket capable of performing both excavation work and gripping work. A bucket attached to the tip of an arm of a power shovel or the like is divided into a bucket base (2) and a fork (3) having a claw (4) at the bottom tip, and the upper part of the fork (3) is placed on the bucket base (2). A hydraulic cylinder (5) for a fork is provided so that the fork (3) can be freely opened and closed with respect to the bucket base (2) while being pivotally mounted on the upper part, and when closed, the fork bottom bottom rear end face (3a) and the bucket are closed. The bottom end surface (2a) of the main body and the end surface (3
c, 3c ') and the bucket base side end surfaces (2c, 2c') are overlapped and integrated.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a clamp bucket attached to the tip of an arm of a power shovel or the like and capable of performing both excavation work and gripping work, and more particularly to a clamp bucket capable of handling more detailed work.

[0002]

[Prior art]

 An integrated bucket (hereinafter, referred to as a “standard bucket”) attached to a tip of an arm of a power shovel or the like and having a nail welded to a tip edge thereof is widely known and used today.

[0003]

[Problems to be solved by the invention]

 However, this conventional standard bucket can only be used for excavation work, and it has been difficult to quickly respond to various needs that occur in a construction site, for example, gripping and transporting goods. The present invention has been made to solve such a drawback, that is, to provide a clamp bucket which not only can be used for both excavation work and gripping work, but can also be used for more detailed work.

[0004]

[Means to solve the problem]

 That is, the clamp bucket according to the present invention divides a bucket mounted on the tip of an arm of a power shovel or the like into a bucket base (2) and a fork (3) having a claw (4) at a bottom end edge. 3) A fork hydraulic cylinder (5) is provided so that the upper part is pivotally mounted on the upper part of the bucket base (2), and the fork part (3) is openable and closable with respect to the bucket base (2). The bottom rear end surface (3a) and the bucket base bottom front end surface (2a), the fork portion side end surfaces (3c, 3c '), and the bucket base side end surfaces (2c, 2c') are overlapped and integrated. is there.

Further, according to the second aspect, the cutting line (3b) on the rear end surface (3a) of the fork portion draws a gentle arc in a side view, and the cutting line (2a) on the front end surface (2a) of the bucket base. The line (2b) has a rectilinear shape in a side view, and in the third aspect, the line between the fork portion side end surface (3c, 3c ') and the bucket base side end surface (2c, 2c'). The cutting lines (3d, 2d) facing each other have a shape that draws a gentle arc in front view.

[0006]

[Action]

 Therefore, when using the excavator, the clamp bucket according to the present invention is attached to the tip of the arm of a power shovel or the like, and the reciprocating pipes for various attachments already installed on the power shovel are connected to the hydraulic cylinder for fork (5). A clamp bucket that can also serve as a holding operation can be easily obtained. That is, when the fork hydraulic cylinder (5) is extended and the fork (3) is held in a closed state, excavation work can be performed as in the conventional standard bucket, and the fork hydraulic cylinder (5) is extended and retracted. When the fork (3) is opened and closed, a clamp bucket that can be gripped can be obtained.

Further, according to the second aspect of the present invention, since the cutting line (3b) of the rear end surface (3a) of the fork portion has a gentle arc in a side view, the curved shape is utilized. Even relatively small objects and sediments on the work surface, such as rocks, concrete blocks, earth and sand, can be securely grasped and scooped, and ready-mixed concrete received in buckets can be transferred to desired locations. It is also possible to carry out detailed work, such as dropping small quantities accurately.

Further, according to the third aspect, the cutting lines (3d, 2d) of the fork portion side end face (3c, 3c ') and the bucket base side end face (2c, 2c') facing each other are formed. Since it has a shape that draws a gentle arc when viewed from the front, it is possible to securely hold a fall-down drum can or wood on the work surface without falling.

[0009]

【Example】

 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a specific embodiment will be described with reference to the drawings. FIG. 1 shows that a clamp bucket (1) according to the present invention is attached to the tip of an arm (7) of a power shovel and a hydraulic cylinder (5) for a fork is extended. It is a front view which shows the state which integrated the fork part (3). As described above, the clamp bucket (1) according to the present invention divides the bucket into a bucket base (2) and a fork part (3) having a claw (4) at a bottom end edge, and a fork part (3). A hydraulic cylinder (5) for fork is provided so that the upper part is pivotally mounted on the upper part of the bucket base (2) and the fork part (3) can be opened and closed with respect to the bucket base (2). The rear end face (3a) and the bucket base end face (2a), and the fork side end face (3c, 3c ') and the bucket base side end face (2c, 2c') are overlapped with each other and integrated. is there.

Therefore, by connecting the reciprocating pipes for various attachments already installed on the power shovel to the hydraulic cylinder for fork (5), a clamp bucket capable of performing both excavation work and gripping work can be easily obtained. In other words, if the fork (3) is closed and integrated, it can be used as a normal standard bucket, and a clamp bucket that can quickly respond to the gripping work of the article can be obtained if necessary. That is, when the fork hydraulic cylinder (5) is extended and the fork portion (3) is kept closed, excavation work can be performed as in the conventional standard bucket, and the fork hydraulic cylinder (5) is extended and retracted. When the fork part (3) is opened and closed, a clamp bucket that can be gripped can be obtained. When the fork (3) is closed and used as a conventional standard bucket, the clamp bucket (1) according to the present invention includes the fork bottom bottom rear end face (3a), the bucket base bottom bottom end face (2a) and The fork part-side end face (3c, 3c ') and the bucket base-side end face (2c, 2c') overlap each other and are integrated, so that the fork part (3) has a sufficient strength. It is firmly fixed to the base (2) and does not run out during excavation work.

Further, according to the second aspect of the present invention, as shown in FIG. 3, the cutting line (3b) of the rear end surface (3a) of the fork bottom has a gentle arc in a side view. Using the shape, it is not only easy to reliably grasp and scoop even relatively small objects and small amount of sediment on the work surface, such as rocks, concrete blocks, earth and sand, etc. Fine work, such as dropping ready-mixed concrete and the like received in the bucket into desired locations in small quantities, is also possible. In other words, hold the clamp bucket that has received the raw concrete right above the desired location, and gradually open the fork to adjust the amount while dropping the ready-mixed concrete from the center to the desired location. I can go.

Further, since the cutting line (2b) of the bottom end surface (2a) of the bucket base has a linear shape when viewed from the side, if the fork (3) is held open as shown in FIG. It can be used for leveling work to level the work surface as well as so-called slope buckets.

[0013]

[Effect of the invention]

 Therefore, according to the present invention, not only is it possible to easily obtain a clamp bucket that can perform both excavation work and gripping work, but also reliably perform finer work, that is, relatively small articles or small amounts of sediment on the work surface. It can be gripped and scooped, and can also perform leveling work.For example, if used in house demolition work, a series of operations from gripping demolition to loading, excavation, and even ground leveling work are replaced with attachments. It can be handled by one unit without any problems, and exhibits extremely useful effects.

[Brief description of the drawings]

FIG. 1 is a front view showing a state in which a clamp bucket according to the present invention is attached to an end of an arm of a power shovel and a fork is closed and integrated.

FIG. 2 is a front view showing a state in which a clamp bucket according to the present invention is attached to an end of an arm of a power shovel and a fork is opened.

FIG. 3 is a side view in a closed state showing shapes of cutting lines of a fork portion bottom rear end surface and a bucket base bottom front end surface facing each other;

[Explanation of symbols]

 1 Clamp Bucket 2 Bucket Base 2a Bucket Base Bottom Tip 2b Bucket Base Bottom Cutting Line 2c Bucket Base Side End 2c 'Bucket Base Side End 2d Bucket Base Side Cutting Line 3 Fork 3a Fork Bottom Rear End 3b Fork Bottom Cutting Line 3c Fork part side end face 3c 'Fork part side end face 3d Fork part side cutting line 4 Claw 5 Hydraulic cylinder for fork 6 Hydraulic cylinder for bucket 7 Arm

Claims (3)

[Utility model registration claims] 1. A bucket attached to the tip of an arm of a power shovel or the like is divided into a bucket base (2) and a fork (3) having a claw (4) at a bottom tip edge. A hydraulic cylinder (5) for a fork is provided so that the fork (3) can be freely opened and closed with respect to the bucket base (2) while being pivotally mounted on the upper portion of the bucket base (2). 3
a), the bottom end surface (2a) of the bucket base, the end surface (3c, 3c ') on the fork portion side, and the end surface (2c, 3b) on the bucket base side.
2c ′) and a clamp bucket (1) characterized in that they form a structure that overlaps and integrates with each other. 2. The cutting line (3b) on the rear end surface (3a) of the fork portion has a gentle arc in side view, and the cutting line (2b) on the front end surface (2a) of the bucket base has a straight line shape in side view. Item 8. The clamp bucket according to Item 1. 3. The cutting lines (3d, 2d) of the fork part side end face (3c, 3c ') and the bucket base side end face (2c, 2c') which have a shape that draws a gentle arc in a front view. The clamp bucket according to claim 1.