JP2003237506A - Bumper of riding type transplanting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a riding type transplanting machine capable of protecting the machine body against thrusting up from below. <P>SOLUTION: A bumper member 72 attached to the front of a riding type rice transplanting machine 10 has a shape deviated downward and its stationary base side 86' for fixation to the machine body is fixed inside each front wheel 12 about the machine body and in the upper part of a front axle case 56. That is, the bumper member 72 is furnished with a first portion 86 deviated down toward ahead the machine body so as not to interfere with the front wheel 12 in which the stationary base side 86' serves as the starting point and extended approximately horizontally along the machine body front in the deviated down-position, a second portion 88 extended approximately horizontally toward inside the machine body from the end of the first part 86 and deviated upward from the middle, and a third portion 90 extended approximately horizontally toward inside the machine body in the deviated up-position. Even in the case the machine body gets on any ridge, for example when it is turning round at the ridge, the bumper member 72 protects the machine body against thrusting up from below. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bumper for a ride-on type transplanter, and more particularly to a bumper for a ride-on type transplanter provided with a bumper member that protects the body against the impact of a thrust from below.

[0002]

2. Description of the Related Art A bumper is provided at the front of a traveling machine such as a passenger rice transplanter to protect the traveling machine mainly from an impact applied from the front of the machine. For example, in the case of a collision during low-speed traveling of the aircraft, this bumper is elastically deformed and then restored so that the bumper itself is not damaged,
In addition, there are some that have been beautifully shaped by integrating with the body.

[0003]

By the way, in the conventional bumper, since the bumper is mounted at substantially the same height as the machine frame constituting the traveling machine body, even if it is effective against a shock from the front of the machine body, For example, during the transplanting work, it was difficult for the aircraft to ride on the ridge due to traveling around the ridge, and during the work in Fukada, it was difficult to protect the aircraft against the thrust from below the aircraft.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a bumper for a riding type transplanter capable of protecting the airframe from a thrust from below the airframe. To provide.

[0005]

In order to achieve the above object, the invention according to claim 1 provides a bumper member (72) at the front of the traveling body (16) for protecting the traveling body (16) from impact. In the riding-type transplanter (10), the bumper member (72) has a downwardly-shifted shape,
The bumper member (72) is attached to the machine body frame (42) to reduce the impact caused by the thrusting from below the machine body.

According to a second aspect of the present invention, in the bumper for a riding type transplanter according to the first aspect, the bumper member (7) is provided.
In 2), the base side is fixed to the upper part of the front axle case (56) inside the body of the front wheel (12), and the base side serves as a starting point and is directed downward toward the front of the body so as not to interfere with the front wheel (12). The first portion (86) that is displaced and extends substantially horizontally along the front of the fuselage at the displaced lower position.
A second portion (88) that extends substantially horizontally from the terminal end side of the first portion (86) toward the inside of the fuselage, and is displaced upward from a midway portion of the extending direction; A third portion (9) extending substantially horizontally toward the inside of the aircraft at the displaced upper position (9
0) and are included.

[Operation] According to the present invention, the traveling body (1
The bumper member (72) that protects 6) from impact has a shape that is deviated downward, and since the bumper member (72) is attached to the body frame (42), it can be used when traveling around on a ridge. While the aircraft is riding on the ridges and when working in Fukada, the aircraft is protected against thrusting from below,
Since the bumper member (72) is originally shaped so as to deviate downward, it has a characteristic that it has high mechanical strength against the impact of a thrust.

The above-mentioned reference numerals in parentheses are for reference to the drawings and do not limit the present invention.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall side view of a riding rice transplanter as a riding type transplanter. The riding rice transplanter 10 has a traveling machine body 16 supported by front wheels 12 and rear wheels 14, and the traveling machine body 16 is provided. Above the engine 1 in the front hood 17
8 is mounted, and a driver's seat 24 having a seat 20 and a steering wheel 22 is disposed on the rear part thereof. Further, a planting part 28 is supported on the rear side of the machine body via a lifting link mechanism 26 so as to be able to move up and down.

The planting section 28 is controlled to move up and down by an expansion and contraction operation of a hydraulic cylinder 29. On the planting section 28, mat seedlings can be placed, and seedlings are placed so as to be inclined forward and backward. It has a table 30, a large number of planting rods 32 arranged below the seedling table 30, a float 34 that slides in a field scene, and the like. The planting rods 32 scrape off the seedlings from the seedling mounting table 30 and transplant the seedlings to the field.

Further, the bonnet 1 is provided at the front of the traveling body 16.
On the left and right sides of 7, there are mounted auxiliary seedling mounts 36 for supplying mat seedlings to the seedling mount 30 when the mat seedlings on the seedling mount 30 are running low. This auxiliary seedling stand 36
Is a seedling stand support rod 38 that is erected on the front of the traveling body 16.
And a multi-tiered seedling stand 4 attached to the seedling support rod 38.
It has 0 and. A large number of mat seedlings for replenishment are placed on this seedling stand 40.

A manual clutch lever 66 is provided at the front of the machine body so that it can be operated by getting off the vehicle and can be switched between running and stopping by tilting the vehicle forward and backward.

As shown in FIGS. 2 (a) and 2 (b), the traveling machine body 16 constitutes the traveling machine body 16 on the left and right sides of the plane view machine body, and has two main bodies extending in the front-rear direction. It has frames 42-1 and 42-2, and the front portions of the main frames 42-1 and 42-2 are bent inward in a substantially right-angled direction and connected to the engine base 44. . In the middle portion of the main frame 42 in the longitudinal direction,
A horizontal frame 48 is fixed via a plate 46, and a pivot rod 49 is connected to the rear portion.

Inside the main frame 42, 2
A book center frame 50 extends in the machine front-rear direction. The vertical frame 5 is provided at the rear of the center frame 50.
1 are erected on the left and right sides respectively, and the upper ends of the left and right vertical frames 51 are connected by a substantially horizontal plate 53. Further, a sub-frame 47 and an auxiliary step 55 are attached to the outer frame of the main frame 42. Supporting metal fittings 52, 52 are fixed to the left and right side portions of the front portion of the main frame 42, and a central portion is bent in a substantially right-angled direction from the left and right side portions inward. The bracket 82 is fixed.
Then, the bonnet 17 is attached to the upper portion of the support fitting 52.

The engine base 44 has an engine 18
A mission case 54 is attached to the rear of the engine 18 integrally with the engine 18, and the left and right sides of the mission case 54 are extended through the final case 54a extending from the mission case 54 to the left and right sides of the vehicle in a substantially orthogonal direction. The front axle case 56 of is attached. Power is transmitted to a drive shaft (not shown) in the front axle case 56 via a differential gear (not shown) in the transmission case 54 and a drive shaft in the final case 54a, and the front wheels 12 are driven.

Next, as shown in FIGS. 3 and 4A and 4B, the fixed base portion 57a of the seedling stand support rod 38 is located inside the body of the front wheel 12 and the front axle case 56.
The seedling stand supporting rod 38 is fixed to the upper part of the above, and has a first horizontal stay portion 57, a second horizontal stay portion 58, and a vertical stay portion 59.

That is, the seedling stand support rod 38 is fixed to the fixed base 57a side through the mounting plate 60 and the plate 46, inside the body of the front wheel 12 and above the front axle case 56. Also, the seedling support rod 3
Numeral 8 designates a first horizontal stay portion 57 extending substantially horizontally along the front of the machine body from the fixed base portion 57a side as a starting point so as not to interfere with the front wheels 12, and an end of the first horizontal stay portion 57. Second horizontal stay portion 58, which extends substantially horizontally from the side of the bonnet 17 on the side toward the outside of the machine body, and whose middle portion is welded and fixed to the main frame 42, and the second horizontal stay portion 5
It has a vertical stay portion 59 which is provided substantially vertically from the terminal end side of 8 toward the upper side.

The mounting plate 60 has a horizontal plane portion 60a and a vertical plane portion 60b which are bent in a hook shape in a side view of the machine body, and the horizontal plane portion 60a has a first horizontal stay portion 57 and a second horizontal stay portion 58. It is fixed to the main frame 42 by a bolt 62 at a midway portion in the extending direction of the second horizontal stay portion 58. The vertical surface portion 60b is bent downward on the front side of the front axle case 56 on the side of the fixed base portion 57a of the first horizontal stay portion 57. Further, the plate 46 extends vertically on the rear surface side of the front axle case 56, and these mounting plates 60 are provided.
The plate 46 and the plate 46 are arranged so as to embrace the front axle case 56 from the front and the rear.
3 and a nut 64. In this way, the fixed base portion 57a of the seedling stand support rod 38 is fixed to the inside of the front wheel 12 inside the body and to the upper portion of the front axle case 56.

The vertical stay portion 59 is provided with a plurality of seedling placing bases 40, and a large amount of mat seedlings are placed on the seedling placing base 40. When the number of seedlings on the seedling placing table 30 arranged at the rear of the machine becomes low, the operator takes out the mat seedlings from the seedling placing table 40 and supplies the mat seedlings to the seedling placing table 30.

Further, a bumper member 72 for protecting the traveling machine body 16 from an impact is provided on the front portion of the traveling machine body 16, and the bumper member 72 is attached to the machine body frame 42 via metal fitting members 74 and 76. There is. The bumper member 72 and the metal fitting members 74 and 76 constitute the bumper 70.

In the present embodiment, the bumper member 72 is
Has a shape deviated downward, and the bumper member 72 is attached to the machine body frame 42 so that the impact due to the thrust from below the machine body can be alleviated.

As shown in FIGS. 3, 5 and 6, the bumper member 72 has a shape in which the front side portion is displaced downwardly of the machine body when mounted on the machine body, and its fixed base side 8
6'is fixed to the inside of the body of the front wheel 12 by a fixing bracket 74 and to the upper portion of the front axle case 56, and the body center side of the bumper member 72 is fixed to the bracket 82 at the front of the body via the fixing bracket 76. It is fixed to.

That is, the bumper member 72 is made of a hollow pipe in the present embodiment, and as shown in FIGS. 5 and 6, the bumper member 72 is arranged substantially symmetrically with respect to the center line of the machine body, and its fixed base side 86 '. An inclined portion 86a that shifts downward toward the front of the aircraft so as not to interfere with the front wheels 12 from
A first portion 86 having a horizontal portion 86b extending substantially horizontally along the front of the fuselage at the shifted lower position, and from the end side of the first portion 86 toward the inside of the fuselage A second portion 88 having a horizontally extending horizontal portion 88b and an inclined portion 88a that is displaced upward from a middle portion in the extending direction.
And a third portion 90 extending substantially horizontally toward the inside of the body at the shifted upper position.

The fixing metal fitting 74 integrally fixed to the fixed base portion 86 'of the bumper member 72 is provided with a tongue piece 78 protruding from the second horizontal stay portion 58 of the seedling stand supporting rod 38 and a bolt 80. It is fixed. Therefore, the fixed base portion 86 ′ is integrally fixed to the second horizontal stay portion 58 of the seedling support rod 38, but as described above, this second
The horizontal stay portion 58 of the bumper member 72 is integral with the first horizontal stay portion 57 and is fixed to the upper portion of the front axle case 56 via the fixed base portion 57a.
The fixed base side 86 ′ is also fixed to the upper portion of the front axle case 56. Further, the third portion 90 of the bumper member 72 has a fixing metal fitting 76 fixed to the center side of the machine body front portion. The fixing metal fitting 76 is a bracket arranged on the machine body front portion center side of the machine body frame 42. 8
It is being fixed to 2 by the bolt 84.

As described above, the bumper member 72 is firmly fixed to the machine body frame 42 at the center side of the machine body, and its fixed base side 86 'is integrated with the second lateral stay portion 58 of the seedling stand supporting rod 38. Since the bumper member 72 itself is rigidly fixed, the rigidity of the seedling stand supporting rod 38 is also enhanced, so that the seedling stand 40 can be stably supported.

Further, since the bumper member 72 has a shape in which the front side portion is deviated to the lower side of the machine body when it is originally attached to the machine body, it is strong against the impact of the push-up from below, and for this reason, , It is possible to reliably protect the aircraft against the thrust from below the aircraft during riding on the ridge at the time of traveling on the ridge, or during work in Fukada.

Further, in the present embodiment, as shown in FIG. 7, the first portion 86 and the second portion 86 of the bumper member 72 are provided.
A predetermined space 96 is formed between the portion 88 and the step 94 formed on the left and right sides of the bonnet 17. Due to this space 96, the traveling body 1 can be used while working in Fukada
Even when 6 is sunk, the mud escapes from the space 96, so the mud pushing resistance by the airframe in Fukada is reduced, and stable traveling is possible.

As shown in FIG. 8, the bumper member 7
It is also possible to attach the step 92 to the downwardly displaced portion of the second member, for example, the horizontal portion 86b or the horizontal portion 88b. By doing so, the step 92 can be attached at a low position, and the operator can easily get in from the front of the machine.

Also, the bumper member 72 is a solid member,
In addition to the function of cushioning the aircraft from impacts, using it as a weight will reduce the number of parts compared to the case of attaching a dedicated weight as a separate member, and traveling in Fukada with the weight of the separate member. Can be prevented from becoming an obstacle.

Further, as shown in FIG. 9, when the bumper member 72 is attached to the front portion of the traveling machine body 16, the left and right ends of the bumper member 72 are substantially side-row rice when viewed from the operator in the driver's seat. Install in a position that matches. As a result, since the left and right end portions of the bumper member 72 serve as trace markers, the attachment of the trace markers becomes unnecessary, and the number of parts and cost can be reduced.

Next, the operation will be briefly described.

In the present embodiment, since the bumper member 72 attached to the machine body frame 42 originally has a shape deviated to the lower side of the machine body, the bumper member 72 is strong against the impact of a thrust from below, for example, Even when the lower part of the body comes into contact with the ridge when riding on the ridge at the time of traveling on the ridge, the bumper member 72 sufficiently protects the body against the thrust from below the body. Give me

Further, since the fixed base portion side 86 'of the bumper member 72 is fixed inside the body of the front wheels 12 and above the front axle case 56, the bumper member 72 should be firmly attached to the body. become.

The bumper member 72 has a first portion 86 which is deviated downward from the fixed base portion 86 ′ as a starting point so as not to interfere with the front wheel 12, and substantially from the end side of the first portion 86. Since it has the horizontally extending second portion 88, a space 96 is formed between the first and second portions 86, 88 and the lower portion of the main frame 42 (see FIG. Even if the aircraft sinks in Fukada, mud escapes from this space 96, so mud pushing resistance in Fukada can be reduced.

[0036]

According to the invention as set forth in claim 1, it is possible to protect the airframe against the thrust from below the airframe when riding on the ridge at the time of traveling around the ridge or when working in Fukada. You can At this time, since the bumper member has a shape deviated downward, the bumper member has a property of being strong against a shock of a thrust.

According to the second aspect of the invention, since the base side of the bumper member is fixed to the front axle case,
The bumper member can be firmly attached to the machine body.

[Brief description of drawings]

FIG. 1 is an overall side view of a riding rice transplanter to which the present invention is applied.

FIG. 2A is a plan view of a traveling vehicle body, and FIG. 2B is a side view thereof.

FIG. 3 is a cross-sectional plan view of a front part of a riding rice transplanter.

FIG. 4 (a) is a front view of the above, and FIG. 4 (b) is a side view thereof.

FIG. 5 is a partially cutaway front view of the left half of the riding rice transplanter.

FIG. 6 is a side view of the above.

FIG. 7 is a front view schematically showing a riding rice transplanter.

FIG. 8 is a side view schematically showing a riding rice transplanter.

FIG. 9 is a front view schematically showing a riding rice transplanter during a transplanting operation.

[Explanation of symbols]

10 Passenger rice transplanter 12 front wheels 16 traveling aircraft 36 Auxiliary seedling platform 38 Seedling support rod 40 seedling stand 42 Mainframe 56 front axle case 70 bumper 72 Bumper member 74 Fixing bracket 76 Fixing bracket 86 First part 86 'fixed base side 86a inclined part 86b Horizontal part 88 Second part 88a inclined part 88b Horizontal part 90 Third part

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoji Ishida             Shimane Prefecture Yatsuka-gun Higashi Izumo-cho Ojiyacho 667             1 Within Mitsubishi Agricultural Machinery Co., Ltd.

Claims (2)

[Claims] 1. A riding type transplanter comprising a bumper member for protecting the traveling machine body from an impact at a front portion of the traveling machine body, wherein the bumper member has a shape deviated downward, and the bumper member is a machine body. A bumper for a passenger-type transplanter, which is mounted on a frame to reduce the impact of a push-up from below the fuselage. 2. The bumper member has a base side fixed to an upper part of a front axle case inward of the front wheel, and is deviated downward toward the front of the machine body from the base side so as not to interfere with the front wheel. A first portion extending substantially horizontally along the front of the fuselage at the displaced lower position, and a substantially horizontal portion extending toward the inside of the fuselage from the end side of the first portion, A second portion that is displaced upward from a midway portion in the extending direction, and a third portion that is extended substantially horizontally toward the inside of the aircraft at the displaced upper position. The bumper for a riding-type transplanter according to claim 1.