JP4208197B2 - Soil adhesion prevention member for rotary cover - Google Patents

Description

  The present invention relates to a soil cover prevention member for a rotary cover that is attached to a rotary cover that covers a tillage portion of a rotary tiller.

  It has been conventionally known that a soil adhesion preventing member is attached to the back surface of the rotary cover in order to prevent soil scattered from the tilling portion of the rotary tiller from adhering to the rotary cover that covers the tilling portion during the tilling work. It is.

  Specifically, as a conventional soil adhesion preventing member, for example, an elasticity configured to cover from the front end portion of the main cover that covers the top of the tillage portion to the rear end portion of the rear cover that covers the rear of the tillage portion. A soil adhesion preventing member made of a rigid resin (Patent Document 1 below), a low friction coefficient cover attached to the back surface of the main cover (a surface facing the tillage part), and an elastic cover attached to the back surface of the rear cover There is a soil adhesion preventing member (Patent Document 2 below) configured to prevent adhesion of soil to the hinge portion connecting the main cover and the rear cover by the elastic cover.

However, such a conventional soil adhesion preventing member has the following problems.
That is, since the soil adhesion preventing member described in Patent Document 1 is composed of a so-called single piece, the weight increases, handling properties (removability) are poor, and only a part is deteriorated. Even if it exists, there is a problem that the whole must be replaced and the cost is poor.

In addition, since the soil adhesion preventing member described in Patent Document 2 is configured to cover the hinge portion and the rear cover with a single elastic cover, as in Patent Document 1, it is easy to handle and cost. It has a defect from the viewpoint.
Furthermore, in the soil adhesion preventing member described in Patent Document 2, the front end portion of the elastic cover attached to the back surface of the rear cover is extended forward, and the soil extending to the hinge portion is extended by the front extension portion. Prevents adhesion.
That is, the front extension of the elastic cover attached to the rear cover that is swingably connected to the main cover is hung so as to be positioned below the hinge, thereby preventing soil from adhering to the hinge. However, in such a configuration, the forward extension portion easily enters the rotation trajectory of the tillage portion, and may be damaged or worn by contact with the tillage claw.
Even if only the front extension of the elastic cover is damaged or worn, the entire elastic cover must be replaced.
Japanese Utility Model Publication No. 5-4803 JP-A-6-303802

  The present invention has been made in view of the prior art, and a soil adhesion preventing member mounted on a rotary cover including a main cover and a rear cover that is swingably connected to the main cover via a hinge portion. Then, it is an object to provide a soil adhesion preventing member that can improve handling and cost.

In order to achieve the above object, the present invention provides a main cover that covers an upper part of a tilling part in a rotary tiller and a rear cover that covers the rear of the tilling part, and swings with respect to the main cover via a hinge part. A soil adhesion preventing member that is detachably attached to a rotary cover having a movable rear cover, the main cover soil adhesion preventing member and the rear cover soil adhesion preventing member respectively covering the main cover and the back surface of the rear cover. When, and a hinge portion soil adherence prevention member covering the lower side of the hinge portion, said main cover soil adhesion prevention member, the hinge portion soil adherence prevention member and the rear cover soil adhesion prevention member being respectively separately the main cover soil adhesion prevention member is a low friction coefficient member capable of preventing the adhesion of dirt by its surface roughness Formed Te, the are arranged on the inner surface of the main cover, the hinge portion soil adhesion prevention member is formed by an elastic member capable of preventing the adhesion of dirt by its own elastic deformation, the rear end portion is a free end parts and have been forward end Migihitsuji covering the lower side of the hinge portion in a state wherein the fixed rear end portion of the main cover soil adherence prevention member to the main cover via a clamp member for supporting the rear cover soil adhesion prevention member is formed by an elastic member capable of preventing the adhesion of dirt by its own elastic deformation, the hinge portion soil adherence prevention member, so that the rear end portion abuts on the inner surface of the front end portion of the rear cover soil adherence prevention member in, which is a side view curved shape spaced from the rotation locus of the tilling unit from the front end portion, said rear cover soil adhesion prevention member, the hinge soil antiadhesive In its contact to the polymerization zone for polymerizing with product the rotary cover soil adhesion prevention member disposed in a state of presence of the gap between the inner surface of the rear cover in and other areas are arranged close to the inner surface of the rear cover provide.

Preferably, the main cover, rear portion is bent radially outward of the tilling portion, the hinge portion soil adhesion prevention member, Ru is fastened at the rear end of the main cover.

Preferably, the main cover soil adhesion preventing member is composed of a plurality of members separated from each other.

According to the present invention, since the soil adhesion preventing member for the main cover, the soil adhesion preventing member for the hinge portion, and the soil adhesion preventing member for the rear cover are separately provided, the handleability can be improved as compared with the conventional case.
Further, even when a part is worn or damaged, such as a hinge part, it is only necessary to replace the corresponding part, so that the maintenance cost can be reduced as compared with the conventional case.

Moreover, if the main cover soil adhesion preventing member is formed of a low friction coefficient member disposed on the back surface of the main cover, the main cover soil adhesion preventing member can be made lighter in weight than other parts. Can be further improved.
Further, if the one end of the soil adhesion preventing member for the hinge portion is supported on the main cover so that the other end portion which is a free end portion is separated from the rotation trajectory of the tillage portion than the one end portion, It can prevent effectively that the other end part of the soil adhesion prevention member for hinge parts contacts with a tilling part, and is worn or damaged at an early stage.

  Further, the clamp member is detachably attached to the rear end portion of the main cover from the back side, and the clamp member in which the main cover soil adhesion preventing member can be inserted from the front is used as the hinge portion soil adhesion preventing member. If it is also used as a support member that supports one end of the main cover, it is possible to further improve the mounting workability of the main cover soil adhesion preventing member, and it is possible to reduce the cost by reducing the number of parts.

Also, the soil adhesion preventing member for the hinge part can prevent soil adhesion by its own elastic deformation. The outer surface of the soil adhesion preventing member for the hinge portion is formed of an elastic member, By using a curved shape in side view so as to contact the inner surface of the bar soil adhesion prevention member The overlapping region of the soil adhesion preventing member for the hinge part and the soil adhesion preventing member for the rear cover is confirmed. The entire rotary cover can be reliably covered.

Also, the soil adhesion preventing member for the rear cover is formed of an elastic member, The inner surface of the rear cover is installed with a gap so that soil adhesion can be prevented by sexual deformation. By wearing it, it will be elastically deformed by the impact of the scattered soil, preventing adhesion of the soil. Can be stopped.
  Further, the soil adhesion preventing member for the rear cover is not overlapped with the soil adhesion preventing member for the hinge part. The recording area is arranged in close contact with the rear cover so that the rear cover is as small as possible. We are trying to reduce the diameter.

Further, if the main cover soil adhesion preventing member is composed of a plurality of members separated from each other, the handleability can be further improved.
This is particularly effective in a center rotary type tiller in which the rotor case is disposed substantially at the center in the vehicle width direction.

Hereinafter, a preferred embodiment of a soil cover prevention member for a rotary cover according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a longitudinal side view of a rotary tiller 100 to which a soil cover prevention member for a rotary cover according to the present embodiment is applied.

As shown in FIG. 1, the soil cover preventing member for rotary cover is detachably attached to a rotary cover of a rotary cultivator 100 attached to the main unit of the work vehicle.
In the present embodiment, the rotary cultivator 100 is a center rotary type.

  Specifically, the rotary tiller 100 is operatively connected to the input shaft 110 via a transmission member (not shown) and an input shaft 110 that is operatively connected to a PTO shaft provided in the machine via a universal joint. Drive shaft 120, a tilling unit 130 having a tilling claw 131 that is not rotatable relative to the drive shaft 120, an upper arm 140 that is linked to a lift arm provided in the machine, and the upper arm 140 A rotor case 150 connected to the rotor case 150, which supports the input shaft 110 and the drive shaft 120 and accommodates the transmission member, and a pair of both connected to both side surfaces of the rotor case 150. A rotary cover supported by the pair of main beams 160 so as to cover the main beam 160 and the rotation locus 130R of the tillage unit 130. It is equipped with a 00 and.

As described above, the soil cover preventing member for rotary cover is detachably attached to the rotary cover 200.
More specifically, the rotary cover 200 includes a main cover 210 that covers the top of the tillage unit 130 and a rear cover 230 that covers the rear of the tillage unit 130.
The rear cover 230 has a leveling member 231 for leveling the soil behind the tillage unit 130, so that the leveling member 231 can move up and down in response to a change in the height of the soil. The main cover 210 is swingably connected via a hinge 220.

  The rotary cover soil adhesion preventing member detachably attached to the rotary cover 200 having such a configuration is the main cover soil adhesion preventing member 10 and the rear cover soil adhesion preventing member that respectively cover the back surfaces of the main cover 210 and the rear cover 230. 30 and a soil-preventing member 20 for the hinge part covering the lower part of the hinge part 220. The soil-preventing member 10 for the main cover, the soil-preventing member 30 for the rear cover, and the soil-preventing member 20 for the hinge part are separately provided. It is assumed to be a body.

In other words, in the present embodiment, the main cover soil adhesion preventing member 10, the rear cover soil adhesion preventing member 30, and the hinge portion soil adhesion preventing member 20 are independent of each other, and can be individually detached. Yes.
Therefore, the weight of each single soil adhesion preventing member is reduced as compared with the conventional soil adhesion preventing member, and thereby handling (desorption) can be improved.
In addition, even in the case of partial deterioration, only the corresponding soil adhesion preventing member (for example, the soil adhesion preventing member 20 for the hinge portion) can be replaced, so that the cost can be reduced compared to the conventional soil adhesion preventing member. Can be planned.

Preferably, the main cover soil adhesion preventing member 10 is formed of a low friction coefficient member.
The low friction coefficient member is a member that can prevent adhesion of soil by its own surface roughness without using an elastic action. For example, a composite material in which glass fiber is added to resin is exemplified.
Thus, by forming the main cover soil adhesion preventing member 10 with a low friction coefficient member, it is possible to reduce the weight of the main cover soil adhesion preventing member, which is larger than the other portion of the soil adhesion preventing member, and to improve handling. Can be improved.

As shown in FIG. 1, the main cover soil adhesion preventing member 10 formed by such a low friction coefficient member can be disposed in close contact with the back surface of the main cover 210 (the surface facing the tilling portion 130).
That is, in order to prevent the adhesion of soil using elasticity, the main cover 210 is provided with a gap for allowing elastic deformation between the main cover 210 and the main cover soil adhesion preventing member. In this embodiment, the main cover soil adhesion preventing member 10 is formed of a low friction coefficient member, and there is no need to provide such a gap.
Therefore, the main cover 210 can be disposed as close as possible to the rotation locus 130R of the tillage unit 130, and the main cover 210 can be reduced in size.

In the present embodiment, the main cover soil adhesion preventing member 10 is detachably attached to the back surface of the main cover 210 by a front side clamp member 310F and a rear side clamp member 310R fixed to the main cover 210. It has come to be.
FIG. 2 shows a partial back view of the rotary cover 210 viewed from the side of the tillage section.

As shown in FIGS. 1 and 2, the front-side clamp member 310 </ b> F and the rear-side clamp member 310 </ b> R are provided at the front end portion and the rear end portion of the main cover 210, respectively.
The front side clamp member 310F is disposed on the back surface of the main cover 210 so that the front end portion of the main cover soil adhesion preventing member 10 can be inserted from the rear side.
On the other hand, the rear side clamp member 310R is disposed on the back surface of the main cover 210 so that the rear end portion of the main cover soil adhesion preventing member 10 can be inserted from the front side.
As described above, the main cover soil adhesion preventing member 10 is attached to the back surface of the main cover 210 by the front side clamp member 310F and the rear side clamp member 310R, so that the main cover soil adhesion prevention member 10 is attached and detached. Can be made more efficient.

More preferably, the main cover soil adhesion preventing member 10 may be composed of a plurality of sheets.
In particular, as in the present embodiment, when applied to a center rotary type tiller, the main cover soil adhesion preventing member 10 is composed of a plurality of sheet bodies arranged on the left and right sides of the rotor case 150. By setting it as what, the removal | desorption workability | operativity of this soil adhesion prevention member 10 for main covers can be improved more.

  In the present embodiment, the soil adhering prevention member 20 for the hinge part is a free end whose one end is supported by the main cover 210 via a support member 320 and whose other end extends below the hinge part 220. It is considered to be a part.

Specifically, the hinge soil adhesion preventing member 20 is supported by the support member 320 such that the free end portion is further away from the rotation locus 130R of the tillage portion 130 than the fixed end portion.
In the present embodiment, as shown in FIG. 1, the rear cover 230 has a larger diameter than the main cover 210 with reference to the rotation center 130 </ b> X of the tillage unit 130.
In such a configuration, the one end portion of the soil adhesion preventing member 320 for the hinge portion is supported by the main cover 210 by the support member 320 so that the other end portion is close to the rear cover 230.

In this way, the main cover 210 supports the fixed end portion of the hinge portion soil adhesion preventing member 20 so that the free end portion of the hinge portion soil adhesion preventing member 20 is separated from the rotation locus 130R of the tillage portion 130. By doing so, even if the rear cover 230 swings around the hinge portion 220, the free end portion of the soil adhesion preventing member 20 for the hinge portion does not hang downward.
Therefore, it is possible to effectively prevent the soil adhesion preventing member 20 for the hinge part from coming into contact with the tilling part 130, and the early wear and / or breakage of the soil adhesion preventing member 20 for the hinge part as described in the section of the prior art. Trouble can be solved.

  As shown in FIG. 1, in the present embodiment, the rear side clamp member 310R is also used as the support member 320, thereby reducing costs and improving work efficiency by reducing the number of parts. I am trying.

The hinge portion soil adhesion preventing member 20 can be formed of various materials, but in the present embodiment, it is formed of an elastic member such as rubber.
In this way, when the hinge portion soil adhesion preventing member 20 is formed of an elastic member, the outer surface of the hinge portion soil adhesion preventing member 20 is preferably in contact with the inner surface of the rear cover soil adhesion preventing member 30. By doing so, the soil adhesion preventing member 20 for the hinge part can be held in a curved shape in a side view.
By providing such a configuration, the overlapping region 40 of the soil adhesion preventing member 20 for the hinge portion and the soil adhesion preventing member 30 for the rear cover can be secured, and the entire rotary cover 200 can be reliably covered.

The rear cover soil adhesion preventing member 30 can be formed of various materials, but in the present embodiment, it is formed of an elastic member such as rubber.
When formed by an elastic member as in the present embodiment, the rear cover soil adhesion preventing member 30 is provided with the gap 50 so as to prevent soil adhesion by its own elastic deformation. 230 is mounted on the inner surface.
That is, the soil adhesion preventing member made of such an elastic member prevents the adhesion of soil by elastically deforming itself due to the impact of the scattered soil, and the gap 50 allows the elastic deformation. ing.

In the present embodiment, the rear cover soil adhesion preventing member 30 has the overlapping region 40 that is superposed on the hinge portion soil adhesion preventing member 20 in close contact with the rear cover 230. The diameter is reduced as much as possible.
That is, in the superposed region 40, the soil adhesion prevention member 20 prevents the soil from adhering. Therefore, it is not necessary to provide the gap 50 for the overlapping region 40. From this point of view, in the present embodiment, the overlapping region 40 is in close contact with the inner surface of the rear cover 230.

As shown in FIG. 3, the soil cover preventing member for rotary cover may further include a front soil adhesion preventing member 60 formed of an elastic member such as rubber.
The front soil adhesion preventing member 60 has a base end portion supported by the main cover 210 and a front end portion that is a free end portion extending forward.
Preferably, as shown in FIG. 3, the front soil adhesion preventing member 60 can be supported on the main cover 210 by the front side clamp member 310F, thereby reducing the number of parts.

In the present embodiment, as described above, the main cover soil adhesion preventing member 10 is configured to be attached to the main cover 210 by the front side clamp member 310F and the rear side clamp member 310R. Of course, the present invention is not limited to such a form.
That is, as shown in FIG. 4, instead of the front side clamp member 310F, the front end portion of the main cover soil adhesion preventing member 10 may be fixed by a fastening member 310F ′ such as a bolt.

  Further, in the embodiment shown in FIG. 4, when the front soil adhesion preventing member 60 is provided, the front soil adhesion preventing member 60 can be supported by the fastening portion 310F ′ or supported by another fastening member. You can also.

FIG. 4 shows a case where the soil cover preventing member for rotary cover according to the present invention is applied to the side rotary type tiller 100 ′.
The side rotary type tiller 100 ′ includes a side rotor case 150 ′ and a main frame 160 ′, respectively, instead of the rotor case 150 and the pair of main beams 160 in the center rotary type tiller 100. .

  That is, the side rotary type tiller 100 ′ includes the input shaft 110, the drive shaft 120 (not shown in FIG. 4), the tiller 130, the upper link 140, and the upper link 140. The main frame 160 'connected to the main frame 160' for supporting the input shaft 110 and receiving the transmission shaft (not shown), and supporting the drive shaft 120, and the transmission And a side rotor case 150 ′ that houses a shaft and a transmission member (not shown) for operatively connecting the drive shaft 120.

In the present embodiment, the main cover soil adhesion preventing member 10 is formed of a low friction coefficient member, and the hinge portion soil adhesion preventing member 20 and the rear cover soil adhesion preventing member 30 are formed of an elastic member. However, as a matter of course, the present invention is not limited to such a form.
That is, all the soil adhesion preventing members can be formed by elastic members or low friction coefficient members, or only one of the soil adhesion preventing members is formed by an elastic member as in the present embodiment, and the rest It is also possible to form the soil adhesion preventing member by a low friction coefficient member.

FIG. 1 is a longitudinal side view of a center rotary type tiller to which a soil adhesion preventing member for a rotary cover according to an embodiment of the present invention is applied. FIG. 2 is a partial rear view of the main cover of the rotary tiller shown in FIG. 1 viewed from the inside. FIG. 3 is a vertical side view of a center rotary type tiller further provided with a front soil adhesion preventing member. FIG. 4 is a vertical side view of a side rotary type tiller to which a soil cover preventing member for rotary cover according to another embodiment of the present invention is applied.

Explanation of symbols

10 Main cover soil adhesion preventing member 20 Hinge soil adhesion preventing member 30 Rear cover soil adhesion preventing member 100, 100 'Rotary tiller 130 Tillage section 130R Tillage section rotation trajectory 210 Main cover 220 Hinge section 230 Rear cover 310F Front side clamp member 310R Rear side clamp member 320 Support member for hinge adhesion preventing member for hinge portion

Claims (3)

A rotary cover provided with a main cover that covers the top of the tillage portion in the rotary tiller, and a rear cover that covers the rear of the tillage portion and is swingable with respect to the main cover via a hinge portion A soil adhesion preventing member detachably attached to the
A main cover soil adhesion preventing member and a rear cover soil adhesion preventing member for covering the back surfaces of the main cover and the rear cover, respectively, and a hinge portion soil adhesion preventing member for covering the lower part of the hinge portion,
The main cover soil adhesion preventing member, the hinge portion soil adhesion preventing member and the rear cover soil adhesion preventing member are separated .
The main cover soil adhesion preventing member is formed of a low friction coefficient member that can prevent soil adhesion due to its own surface roughness , and is disposed on the inner surface of the main cover.
The hinge portion soil adhesion prevention member is formed by an elastic member capable of preventing the adhesion of dirt by its own elastic deformation, with the rear end portion is a free end portion Migihitsuji covering the lower side of the hinge portion In addition, the front end portion is fixed to the main cover via a clamp member that supports the rear end portion of the main cover soil adhesion preventing member ,
The rear cover soil adhesion prevention member is formed by a elastic member capable of preventing the adhesion of dirt by its own elastic deformation,
The hinge portion soil adhesion prevention member is a side view Bay song shape spaced from the rotation locus of the tilling unit from the front end to the rear end portion abuts on the inner surface of the front end portion of the rear cover soil adhesion prevention member And
The rear cover soil adhesion prevention member is in the polymerization area of polymerizing with the hinge portion soil adherence prevention member in and other areas are arranged close to the inner surface of the rear cover were exist a gap between the inner surface of the rear cover over A soil cover prevention member for a rotary cover, wherein the soil adhesion prevention member is arranged in a state . The main cover has a rear end bent toward the outside in the radial direction of the tillage portion,
The soil adhesion preventing member for a rotary cover according to claim 1 , wherein the soil adhesion preventing member for the hinge portion is fastened at a rear end portion of the main cover . The soil cover prevention member for a rotary cover according to claim 1 or 2 , wherein the soil cover prevention member for main cover is composed of a plurality of members separated from each other .

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