US-12624525-B2 - Construction machine

Abstract

This construction machine includes a blade and a manipulating lever. The blade is provided to a machine body. The blade is configured such that a plurality of operations are possible. The manipulating lever manipulates the blade. The manipulating lever is configured so as to be able to control each of the plurality of operations by a different manipulation. The manipulating lever is preferably configured so as to be able to manipulate each of the plurality of operations in the same direction.

Inventors

• Kiyoshi Yonekura

Assignees

• Yanmar Holdings Co., Ltd.

Dates

Publication Date

20260512

Application Date

20211217

Priority Date

20201218

Claims (10)

1. 1 . A construction machine comprising: a blade that is provided on a machine body thereof and is configured to be capable of performing a plurality of operations; and a manipulation lever that manipulates the blade, wherein the manipulation lever comprises: a lever body that can be manipulated in at least one direction, a grip section that is disposed at a distal end part of the lever body, wherein a first operation of the plurality of operations is performed by manipulating the grip section in a predetermined direction, and a manipulation switch disposed at the grip section and capable of being operated to the left or right with respect to the grip section, wherein a second operation of the plurality of operations is performed by manipulating the manipulation switch; wherein the manipulation lever is configured to be capable of controlling the plurality of operations by individual different manipulations.
2. 2 . The construction machine according to claim 1 , wherein the manipulation lever is configured to be capable of manipulating each of the plurality of operations in a same direction.
3. 3 . The construction machine according to claim 1 , wherein the first operation is an angular operation, and the second operation is a tilting operation.
4. 4 . The construction machine according to claim 1 , wherein the manipulation switch is disposed at a front side of the grip section.
5. 5 . The construction machine according to claim 1 , wherein the manipulation lever further has a changeover switch for enabling any one of the plurality of operations.
6. 6 . The construction machine according to claim 5 , wherein manipulation of the changeover switch enables the first operation as well as disables the second operation.
7. 7 . The construction machine according to claim 5 , wherein the first operation is performed when the grip section is manipulated simultaneously with the manipulation of the changeover switch.
8. 8 . The construction machine according to claim 5 , wherein the changeover switch is configured to be able to be pushed down.
9. 9 . The construction machine according to claim 5 , wherein the changeover switch is disposed at a back side of the grip section.
10. 10 . The construction machine according to claim 1 , wherein the grip section is formed to incline downward from a base end part thereof toward a distal end part thereof.

Description

CROSS-REFERENCE This application is a US National Stage Application under 35 U.S.C. § 371 of International Application No. PCT/JP2021/046841 filed Dec. 17, 2021, which claims foreign priority of JP2020-210240 filed Dec. 18, 2020 and the disclosures of which are hereby incorporated by reference in their entirety. TECHNICAL FIELD The present invention relates to a construction machine. BACKGROUND ART The working machine of Patent Literature 1 has a blade provided on a lower traveling body thereof so as to be capable of performing an elevating operation, an angular operation, and a tilting operation. In the working machine of Patent Literature 1, a blade lever is tilted in a forward and backward direction to lift the blade. Additionally, the blade lever is tilted in a left and right direction to cause the blade lever to perform the tilting operation and the angular operation. Switching between the tilting operation and the angular operation is performed using a button switch at a distal end of the blade lever. CITATION LIST Patent Literature Patent Literature 1: Japanese Patent Laid-Open Publication No. 2005-207196 DISCLOSURE OF INVENTION Problems to be Solved by the Invention However, in the working machine of Patent Literature 1, the tilting operation and the angular operation mean tilting of the blade lever in the left and right direction, and the operations are common. Thus, there is a possibility of causing any malfunction. For example, there is a possibility that the tilting operation is intended to be performed, but the angular operation may be performed by mistake. The present invention has been made in light of the above-mentioned problem, and the object is to provide a construction machine capable of suppressing occurrences of malfunctions. Means for Solving the Problems A construction machine according to the present invention is provided with a blade and a manipulation lever. The blade is provided on a machine body. The blade is configured to be capable of performing a plurality of operations. The manipulation lever manipulates the blade. The manipulation lever is configured to be capable of controlling the plurality of operations by individual different manipulations. Effect of the Invention The present invention enables occurrences of malfunctions to be suppressed. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a side diagram of a construction machine according to the present embodiment. FIG. 2 is schematic perspective diagram of a traveling device in the construction machine. FIG. 3 is a perspective diagram of a machine body of the construction machine. FIG. 4(a) is a front diagram of a third manipulation lever. FIG. 4(b) is a rear diagram of the third manipulation lever. FIG. 5 is a side diagram of the third manipulation lever. FIG. 6 is a circuit diagram illustrating a configuration of a hydraulic circuit for an angular operation and a tilting operation of a blade. FIG. 7 is a circuit diagram illustrating a configuration of a hydraulic circuit for a lifting operation of the blade. DESCRIPTION OF EMBODIMENTS Descriptions will hereinafter be made on embodiments according to the present invention with reference to the drawings. It is noted that same or corresponding portions in the drawings are provided with the same reference characters and will not be repeatedly described. First, a construction machine 1 according to the present embodiment will be described with reference to FIG. 1. FIG. 1 is a side diagram of the construction machine 1 according to the present embodiment. As illustrated in FIG. 1, the construction machine 1 according to the present embodiment is a backhoe. The construction machine 1 according to the present embodiment has a machine body 2, a boom 3, an arm 4, a bucket 5, and a traveling device 7. The construction machine 1 according to the present embodiment is further provided with a boom actuator 30, an arm actuator 40, and an attachment actuator 50. The machine body 2 has a driving seat 6. An operator sits in the driving seat 6 and operates the construction machine 1. The machine body 2 is supported by the traveling device 7. The machine body 2 may be swivelably supported by the traveling device 7. The machine body 2 is provided with an engine, a fuel tank, a battery, a hydraulic system, and a hydraulic oil tank. In addition, there is provided in the machine body 2 a hood that houses the engine, the fuel tank, the battery, the hydraulic system, and the hydraulic oil tank, and the driving seat 6 is arranged on the hood. The boom 3 is supported on the machine body 2 so as to freely oscillate around a first rotation fulcrum P1. Specifically, a base end part of the boom 3 is pivotally supported on by the machine body 2. The first rotation fulcrum P1 is a rotary axis that extends along a left and right direction in viewing the driving seat 6 from the front. Hereinafter, the left and right direction in viewing the driving seat 6 from the front may be described as “the left and right dir