JP2010029067A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a traveling operation tool to be pleasantly, repeatedly and turnably operated by improving the feeling for a wrist or a forearm part put on an armrest so that the wrist or the forearm part contacting with the armrest may not feel pain or fatigue feeling by the friction action with the armrest in a combine harvester equipped with the armrest which allows an operator to carry out the turning operation of the traveling operation tool while putting the wrist or the forearm part thereon. <P>SOLUTION: The combine harvester is constituted as follows. A pad member 25 installed on the upper surface of the armrest 22 is constituted of a skin part 25a formed out of an elastic body having shape-recovery properties, and a gel-shaped fluid 25b sealed in the skin part 25a and having viscoelasticity. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an armrest attached to a steering operation tool for a combine.

Conventionally, a combine steering unit that harvests grains by harvesting grains while traveling in a field has a multi-steering lever that serves as both a steering operation tool and a lifting operation tool for a preprocessing unit. There has been known one provided with an armrest (hand table) that can operate the lever with the wrist or forearm portion placed on the front side of the multi-steer lever (see, for example, Patent Document 1). .
Japanese Patent Laying-Open No. 2004-97056 (page 4-5, FIG. 2 to FIG. 4)

  However, the above-described armrest of Patent Document 1 has a base portion made of a resin body on an upper portion of a stay formed in a substantially portal shape, and a pad made of an elastic body is fitted on the upper surface of the base portion. If the swinging operation of the multi-steering lever is repeated for a long time with the wrist or forearm part on the pad, the wrist or forearm part contacting the pad may be painful due to the frictional action with the pad. There was a need to improve the feeling of placing the wrist or forearm against the armrest.

  An object of the present invention is to solve the above-described problem, and an armrest is provided on the front side of the steering operation tool, and the steering operation tool is mounted on the armrest with the wrist or forearm portion placed on the armrest by the operator. In the combine that swings, the pad member provided on the upper surface of the armrest is composed of a skin part formed of an elastic body having a form-recovering property, and a gel-like fluid having a viscoelasticity enclosed in the skin part. It is characterized by the construction.

  According to the present invention, when the operator swings the steering operation tool in a state where the wrist or the forearm portion is placed on the armrest provided on the front side of the steering operation tool, the pad member provided on the upper surface of the armrest includes: By forming the skin part formed of an elastic body having a form-recovering property and a gel-like fluid having a viscoelasticity enclosed in the skin part, the pad member is a skin part having a form-recovering property. And deforming the wrist or forearm part so that it wraps smoothly due to the characteristics of the gel-like fluid encapsulated in the skin part, and the weight of the wrist or forearm part is widely dispersed throughout the pad member At the same time, the pad member gently follows and deforms in all directions without obstructing the delicate movement of the wrist or forearm, so that the swing operation of the steering operation tool is repeated for a long time. Even if the wrist or forearm is in contact with the pad member, the wrist or forearm does not feel pain or fatigue due to friction with the pad member. As a result, it is possible to perform a comfortable repeated swinging operation of the steering operation tool.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a right side view of a combine 1. The combine 1 is a pre-processing unit 2 that harvests cereal grains such as rice and wheat, which are harvesting materials, from the field and conveys them backward, and this pre-processing unit 2. A threshing unit (not shown) that threshs the grain from the cereals conveyed from the cereal, a sorting unit (oscillating sorting device) that sorts the grain threshed by the threshing unit, and the sorted grain temporarily The stored grain tank 3, the grain discharge auger 4 for transporting the grain in the grain tank 3 to the outside of the machine, and the unrepresented waste transport for transporting the waste after threshing at the threshing part to the rear part of the machine body An apparatus, a post-processing section 5 provided with a cutter for cutting the waste into a predetermined length at the rear part of the machine body and discharging it to the outside of the machine, a seat 6 on which an operator is seated, a multi-steering lever 7 which is a steering operation tool, And a control unit 9 provided with various operation tools such as a main transmission lever 8.

  The combine 1 supports the machine body frame 13 on a pair of left and right crawler travel devices 12 around which the crawler 11 is hung, and connects the pretreatment unit 2 to the front part of the machine body frame 13 so as to be movable up and down. While the threshing portion is disposed on the left front portion on the body frame 13, the control portion 9 is disposed on the right front portion on the body frame 13, and the grain tank 3 and the waste transporting device are further rearward. Provided.

  2 and 3 show a state in which an operator 14 indicated by a two-dot chain line gets on the control unit 9 and sits on the seat 6 and holds the multi-steering lever 7 with the right hand and the main transmission lever 8 with the left hand. It is the principal part side view and principal part top view which are shown, Comprising: The control tower 17 was installed in the front side of the boarding step 16 which forms the floor surface of the control part 9, and it also served as the meter panel which covers the upper part of this control tower 17 The multi-steering lever 7 is projected from the right side of the top panel 18. On the other hand, the side panel 19 on the left side of the seat 6 is provided with a plurality of operation levers and switches necessary for the operation of the combine 1 such as the main transmission lever 8 and the auxiliary transmission lever 21.

  In addition, an armrest 22 is provided on the front side of the multi-steering lever 7 described above (with respect to the seat 6) so that the operator can operate the multi-steering lever 7 with the wrist or the forearm portion placed. More specifically, as shown in FIG. 4, the armrest 22 is fixed integrally with the upper panel 18 on the upper portion of the frame member 23 forming the control tower 17, and the armrest 22 is formed in a substantially gate shape. And a pad member 25 adhered to the upper surface of the upper beam portion 24a constituting the portal-shaped base 24.

  As shown in the cross-sectional view of FIG. 5, the pad member 25 described above includes a skin portion 25a formed of an elastic body (for example, chloroprene rubber or urethane synthetic leather) having a form recovery property, and the inside of the skin portion 25a. And a gel-like fluid 25b having viscoelasticity enclosed in the container. The gel-like fluid 25b having viscoelasticity is a super-flexible synthetic rubber having both the delayed shape recovery property and the fluidity that is a property of the gel.

  By the way, the multi-steering lever 7 serves as a steering operation tool for the combine 1 and an elevating operation tool for the pre-processing unit 2 as conventionally known, and is shown in FIG. 7 or FIG. 8 from the neutral state shown in FIG. As described above, by swinging (tilting) the left and right sides around the pivot fulcrum P, the tilting is performed by slowly turning the side clutch (not shown) in the tilting direction while further tilting the multi-steer lever 7. It is possible to turn the pre-processing unit 2 up and down by tilting the multi-steering lever 7 in the front-rear direction from the neutral state while enabling a quick turn by actuating a side brake (not shown) of the direction. ing.

  At this time, the operator of the combine 1 moves the multi-steer lever 7 from the neutral state to the left and right sides around the rotation fulcrum P with the wrist or forearm portion placed on the armrest 22 provided on the front side of the multi-steer lever 7. In the swinging (tilting) operation, the pad member 25 provided on the upper surface of the armrest 22 is formed with an epidermis portion 25a formed of an elastic body having a form recoverability, and a viscoelastic gel enclosed in the epidermis portion 25a. The pad member 25 is formed by the characteristics of the skin portion 25a having shape recovery and the gel-like fluid 25b having viscoelasticity enclosed in the skin portion 25a. When the wrist or the forearm is deformed so as to be wrapped smoothly, the weight of the wrist or the forearm is widely distributed over the entire pad member 25. In addition, since the pad member 25 gently follows and deforms in any direction without hindering the delicate movement of the wrist or forearm, even when the horizontal steering operation of the multi-steer lever 7 is repeated for a long time. The wrist or forearm that comes into contact with the pad member 25 does not feel pain or feel fatigue due to friction with the pad member 25, thereby improving the feeling of placing the wrist or forearm against the armrest 22. Thus, a comfortable repeated swinging operation of the multi-steer lever 7 becomes possible.

The right view of a combine. The principal part side view which shows the state which the operator got on the control part. The principal part top view which shows the state which the operator got on the control part. The perspective view of a control part. Sectional drawing of a pad member. The principal part front view of the multi-steering lever in a neutral state. The principal part front view of the multi-steering lever at the time of left turning operation. The principal part front view of the multi-steering lever at the time of right turn operation.

Explanation of symbols

7 Steering operation tool 22 Armrest 25 Pad member 25a Skin part 25b Fluid

Claims (1)

  In the combine where the armrest (22) is provided on the front side of the steering operation tool (7) and the operator swings the steering operation tool (7) with the wrist or forearm portion placed on the armrest (22), The pad member (25) provided on the upper surface of the armrest (22) has a skin part (25a) formed of an elastic body having a form-recovering property, and a viscoelastic gel shape enclosed in the skin part (25a). Combined with the fluid (25b).

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