JP2009035184A - Assist grip of tractor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an assist grip of a tractor provided in front of a steering wheel and allowing a worker to grip it easily when getting in and out the tractor. <P>SOLUTION: This assist grip 31 is arranged in front of the steering wheel 11 to support worker's weight when getting in and out a steering part 4 and is formed into a substantially portal shape by a pair of right and left upward extended parts 32 and a horizontally extended part 33 linking upper ends of the upward extended parts 32 mutually. Small diameter parts 32a, 33a are formed in the upward extended parts 32 or the horizontally extended part 33 or both of these parts. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a tractor assist grip technique, and more particularly to a tractor assist grip technique that is arranged in front of a handle and can be easily grasped by an operator when getting on and off the vehicle.

Conventionally, in a work vehicle such as a tractor, an auxiliary grip that is gripped so that the body can be stabilized and easily get on and off when the operator gets on the step and gets on the control part or gets off the control part. For example, an assist grip provided on the upper fender of the rear wheel is known (see, for example, Patent Document 1).
No. 7-34781

Since the above-described assist grip is disposed on both sides of the seat seat of the control unit, for example, the operator can naturally grasp without sitting up from the seated state. Therefore, it is also effective as a grip for holding the posture in order to protect itself when the tractor unexpectedly loses the posture.
However, when getting on and off the vehicle, the steering handle that has a high possibility of being gripped is not fixed and thus becomes unstable.

  Therefore, in view of such problems, the present invention provides an assist grip for the tractor that can be easily grasped when the operator gets on and off the vehicle, and provides an assist grip that is easy for the operator to grasp. .

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, in claim 1, in the assist grip disposed in front of the steering wheel to support the weight when getting on or off the steering portion, the assist grip is provided with a pair of left and right upper extending portions, The upper extension portion is formed in a substantially gate shape from a horizontal extension portion that connects the upper ends thereof, and a narrow diameter portion is formed in the upper extension portion, the horizontal extension portion, or both.

  According to a second aspect of the present invention, the narrow-diameter portion is formed in a curved shape on the outer circumference of the upper extension portion, the horizontal extension portion, or both.

  According to a third aspect of the present invention, the narrow-diameter portion is formed in a step shape in the middle portion of the upward extension portion, the horizontal extension portion, or both.

  According to a fourth aspect of the present invention, there is provided an assist grip disposed in front of a handle for supporting the weight when getting on or off of the control unit, and the assist grip includes a pair of left and right upper extending portions and the upper extending portion. The upper extension part is formed in a substantially gate shape from the horizontal extension part connecting the upper ends of the extension part, and the upper extension part is configured to be wide in the front-rear direction, and a hole is provided in a substantially central part in the front-rear width direction of the upper extension part. It is a thing.

  According to a fifth aspect of the present invention, in the assist grip disposed in front of the steering wheel for supporting the weight when getting on or off the control portion, the assist grip includes a pair of left and right upper extending portions and the upper extending portion. It is formed in a substantially gate shape from a horizontal extending portion that connects the upper ends of the protruding portions, and a concave portion or a convex portion is formed on the outer periphery of the upper extending portion or the horizontal extending portion or both. .

  According to a sixth aspect of the present invention, in the assist grip disposed in front of the steering wheel for supporting the weight when getting on or off the control unit, the assist grip includes a pair of left and right upper extending portions and the upper extending portion. It is formed in a substantially gate shape from a horizontal extending portion that connects the upper ends of the protruding portions, and continuous irregularities are provided on the outer periphery of the upper extending portion, the horizontal extending portion, or both.

  According to a seventh aspect of the present invention, there is provided an assist grip disposed in front of a handle for supporting a weight when getting on or off the control portion, and the assist grip includes a pair of left and right upper extending portions and the upper extending portion. The upper extension portion is formed in a substantially gate shape from the horizontal extension portion that connects the upper ends thereof, and the upper extension portion is formed in a substantially “S” shape in a side view.

  As effects of the present invention, the following effects can be obtained.

  According to the first aspect of the present invention, by forming the small diameter portion, the operator can easily grip when getting on and off the vehicle, and can firmly hold the body by gripping the assist grip without slipping.

  According to the second aspect of the present invention, the assist grip can be moved while being slid to a position where it is easy to hold, and the force when the operator grasps the small diameter portion is dispersed and the holding force can be maintained.

  According to the third aspect of the present invention, since the narrow diameter portion and the portion formed with the normal diameter are clearly separated, it is possible to prevent the operator's hand from slipping when the small diameter portion is gripped.

  According to the fourth aspect of the present invention, when the operator grips the assist grip when getting on or off the vehicle, the operator can firmly hold the assist grip by inserting a finger or a hand into the hole, and reliably supports the body without slipping. be able to.

  In claim 5, the operator can grip the assist grip firmly by putting his / her finger into the concave part or getting on the convex part when getting on and off the vehicle. Can support.

  According to the sixth aspect of the present invention, when the assist grip is gripped, the finger is positioned according to the unevenness, so that the grip can be easily gripped and the assist grip can be firmly gripped, and the body can be reliably supported without slipping. .

  According to the seventh aspect of the present invention, the operator can grasp the assist grip obliquely from the upper side when getting on or getting off, and can easily hold and easily hold the body. Further, when riding, the assist grip can be grasped from a state where the hand is raised in a “C” shape, and there is no useless movement, and the body can be grasped and held with a stable posture.

Next, embodiments of the invention will be described.
FIG. 1 is a side view showing the overall configuration of a tractor according to an embodiment of the present invention, FIG. 2 is a perspective view of a control unit, FIG. 3 is a rear perspective view of the control unit, and FIG. FIG. 5 is a side view of the control unit. 6 is a plan view of the steering unit, FIG. 7 is a front view of the assist grip, FIG. 8 is a side view of the assist grip, FIG. 9 is a side view of the steering unit according to another embodiment, and FIG. 11 is a side view of a control unit according to another embodiment, FIG. 12 is a side view of the control unit according to another example, FIG. 13 is a side view of the control unit according to another example, and FIG. FIG. 15 is a plan view of a control unit according to another example, FIG. 16 is a front view of an assist grip according to another example, and FIG. 17 is a plan view of the control unit according to another example. It is a top view.

[overall structure]
First, the overall structure of the tractor 1 will be described with reference to FIGS.
In the tractor 1, an engine unit 3 is disposed on the upper front side of the engine frame 2, and a control unit 4 is disposed behind the engine unit 3. A front axle case (not shown) is provided at the front lower portion of the engine frame 2 so as to be swingable in the left-right direction, and at both ends of a front axle (not shown) pivotally supported by the front axle case. The front wheels 6 and 6 are pivotally supported. On the other hand, a mission case (not shown) is disposed behind the engine frame 2, and a rear axle (not shown) is pivotally supported by a rear axle case (not shown) on both sides of the rear portion of the mission case. Not shown.) Is provided. Rear wheels 7 and 7 are pivotally supported at both ends of the rear axle.

  The engine unit 3 is disposed on the upper front side of the engine frame 2, and the engine 8 is mounted on the engine frame 2. The power from the engine 8 is transmitted to the front wheels 6 and 6, the rear wheels 7 and 7, the PTO shaft, and the like via a transmission device and a drive transmission mechanism in the transmission case. In addition, a radiator, a battery, and the like are housed in a bonnet 9 that covers the engine 8.

The steering unit 4 is located behind the engine unit 3 and is disposed from substantially the center of the tractor 1 to the rear.
A dashboard 10 is disposed behind the bonnet 9, and a fuel tank 18 and the like are accommodated therein. An opening for inserting the handle shaft 17 is provided at the upper rear portion of the dashboard 10, and the handle 11 is fixed to the upper end of the handle shaft 17. Further, a display panel 12 provided with a tachometer, a fuel gauge, a warning lamp, etc. is disposed in front of the handle 11, and in front of the display panel 12, that is, on the upper surface of the front portion of the dashboard 10, An assist grip (front assist grip) 31 according to the present invention is disposed. A seat 13 is disposed behind the dashboard 10, and assist grips (lateral assist grips) 16 and 16 are disposed on both sides of the seat 13. A step 14 is provided at a lower portion between the seat 13 and the dashboard 10, and the steering unit 4 is configured by the handle 11, the seat 13, and the like.
A safety frame 15 is erected on the rear side of the seat 13.

[Assist grip]
Next, a first embodiment of the assist grip 31 according to the present invention will be described with reference to FIGS.
The assist grip 31 is formed of an integral “gate type” shape formed of a resin material (the same material as the dashboard 10), and is disposed on the upper surface of the dashboard 10. That is, as shown in FIG. 2 and FIG. 7, the assist grip is formed by a pair of left and right upper extending portions 32 and a horizontal extending portion 33 that connects the upper ends of the upper extending portions 32. Is seamlessly constructed from an integral “gate” shape. As shown in FIGS. 4, 7, and 8, a lower portion of the upwardly extending portion 32 has a base 34 formed in a substantially rectangular shape when viewed from the front, and a bolt 35 extends from the lower end of the base 34. It is protruding.

Next, attachment of the assist grip 31 according to the present invention will be described with reference to FIGS.
The assist grip 31 can be directly attached to the dashboard 10, but as a separate member, the assist grip 31 is inserted into the hole 10 a opened in the dashboard 10 and the base 34 is inserted into the dashboard 10. In the example, it is preferable to detachably attach to a stay portion 42) provided on the radiator bracket 41. Details will be described below.

  As shown in FIGS. 3 and 4, a radiator bracket 41 is erected from the engine frame 2 at the rear part in the bonnet 9, and protrudes from the upper part of the radiator bracket 41 to the rear of the machine body, so that a stay part 42 serving as an attachment part is provided. Are integrally formed. On the left and right sides of the stay portion 42, a substantially cylindrical fitting portion 42a having an upper opening is integrally formed, and a bolt for inserting the bolts 35 and 35 into the fitting portion 42a. The holes 42b and 42b are opened in the vertical direction. That is, a substantially cylindrical fitting portion 42 a that matches the shape of the both ends base portion 34 of the assist grip is integrally formed on the left and right sides of the stay portion 42 on the radiator bracket 41. The bolt holes 42b and 42b are opened corresponding to the number of the bolts 35 and 35, and in this embodiment, two bolt holes 42b are opened at the front and rear of one fitting portion 42a. Further, in this embodiment, plate-like members are erected on the front surface and the left and right side surfaces to form the fitting portion 42a. However, the thickness of the stay portion 42 is increased, and the fitting portion 42a is passed through. It is also possible to form.

When attaching the assist grip 31 to the stay portion 42, first, the base portion 34 is inserted into the hole 10a of the dashboard 10 from above. After that, as shown in FIG. 7, the assist grip 31 is fitted to the fitting portion 42a at the lower end of the base 34, and the positioning and support are strengthened and the bolts 35 and 35 are inserted into the bolt holes 42b and 42b. The nuts 52 and 52 and washers 53 and 53 are fastened from below. The assist grip 31 attached in this way is not only fastened with a bolt at the lower end, but also firmly fixed at the lower portion with the fitting portion 42a, so durability and load resistance against a load in the horizontal direction are increased. is there.
With this configuration, the assist grip can be easily attached. For example, when the assist grip is damaged, it can be easily repaired by replacing only the assist grip. It is also easy to change to an assist grip having a different shape, which will be described later.

Further, the assist grip 31 is inclined upward and backward on the dashboard 10 in a side view, and the inclination of the assist grip 31 is adjusted to the inclination of the upper cover of the display panel 12 to improve the design without a sense of incongruity. Yes. In this way, when getting on the control unit 4 from both the left and right sides, the upward extending portion 32 of the assist grip 31 positioned in front of the handle 11 can be easily grasped.
The upper part of the assist grip 31 reaches a position lower than the uppermost end part of the handle 11, and then gradually changes upward from the left and right sides to the center, and is connected seamlessly, and is formed in a substantially inverted U shape in front view. The In other words, the assist grip 31 is configured such that the upper end of the assist grip 31 is positioned in front of and below the upper end of the handle 11. Thus, the upper end of the horizontally extending portion 33 of the assist grip 31 is arranged to be lower than the upper end of the handle 11, and the left and right width of the assist grip 31 is longer than the left and right width of the handle 11 and the left and right width of the dashboard 10. The assist grip 31 is configured to be substantially the same or short so that the assist grip 31 can be easily gripped from above or from the side, and a safety space for the operator is formed by the assist grip 31 and the safety frame 15.
In addition, as shown in FIG. 2, the assist grip 31 is disposed in the left-right direction across the display panel 12, and forms a predetermined space S between the inside of the assist grip 31 and the outer periphery of the display panel 12, A finger enters between them to make sure you can hold it.
As shown in FIG. 6, the horizontal extending portion 33 of the assist grip 31 is formed in an arc shape in a plan view, and is substantially concentric with the handle 11 so that a predetermined distance is provided between the assist grip 31 and the handle 11. Is formed so as not to obstruct the operation of the steering wheel, and the horizontal extending portion 33 of the assist grip 31 can be easily grasped from above.

  The cross-sectional shape of the assist grip 31 is a substantially rectangular shape and is basically configured by a curved line excluding an acute angle portion. However, the configuration is not limited to this. For example, the rigidity of the member and the ease of gripping by the operator are included. For the reasons described above, the shape may be a circle, a polygon, or a unique shape.

Further, a narrow portion 32a is formed at a substantially center in the vertical direction of the upward extending portion 32 of the assist grip 31 so as to be easily held by an operator. That is, as shown in FIGS. 5 and 8, the narrow diameter portion 32a at the substantially central portion in the vertical direction of the upper extension portion 32 has a thickness that can be gripped according to the size of the hand, and the other portions are thicker than the gripped portion. To avoid slipping. Specifically, the width is about 5 to 6 centimeters, and the width is narrower than other portions. By comprising in this way, the operator can grasp an assist grip firmly by having the small diameter part 32a in boarding and alighting. Also, when the tractor suddenly loses its position, it does not slip when it is grabbed by the heel.
Further, as shown in FIG. 14, it is possible to provide a small diameter portion 33 a in the horizontal extension portion 33 of the assist grip 31. Thus, the assist grip 31 can be firmly grasped by having the small diameter portion 33a when the seated worker stands up. Further, it is also possible to provide the narrow diameter portions 32 a and 33 a in both the upward extension portion 32 and the horizontal extension portion 33 of the assist grip 31.

Further, as shown in FIGS. 5 and 8, the narrow diameter portion 32a of the upward extending portion 32 is formed so as to be continuously connected to the other portions, and the thin portion of the central portion is curved in the shape of the axial center. It is configured to be recessed. By comprising in this way, the force when an operator grasps the small diameter part 32a of the upward extension part 32 is disperse | distributed, and holding force can be maintained. In this embodiment, as shown in FIGS. 5 and 8, the front part of the upper extension part 32 is recessed in a curved shape, but the present invention is not limited to this shape. It can be formed with a curved surface, or the front and rear portions can be formed with a curved surface, the side surface can be formed with a curved surface, or the entire circumference can be recessed into a curved surface.
It is also possible to form the narrow-diameter portion 33a provided in the horizontal extension portion 33 so as to be continuously connected to other portions, and to have a thin portion in the central portion recessed in the shape of a curved surface toward the axis. . By comprising in this way, the force when an operator grasps the small diameter part 33a of the horizontal extension part 33 is disperse | distributed, and holding force can be maintained.

  Note that the material of the assist grip 31 is not limited to the resin material as in this embodiment, and may be formed using, for example, a metal material. Also, the component parts are not limited to the integrated type as in the present embodiment. For example, the upper extension part and the horizontal extension part may be configured as separate parts to facilitate assembling. good. Further, the assist grip 31 can be configured integrally with the dashboard 10.

Next, another embodiment of the shape of the upward extending portion 32 of the assist grip 31 will be described. The configuration of the assist grip 31 other than the upward extending portion 32 is the same as the configuration described in the first embodiment.
As shown in FIG. 9, the upward extending portion 32 of the assist grip 31 is formed to have a narrow-diameter portion 32 a at the center portion in the vertical direction so as to be recessed in a substantially U shape when viewed from the side, and is configured to be narrower than the other portions. Yes. That is, a step is formed between the normal thickness portion and the concave portion. By comprising in this way, since the thin diameter part 32a and a normal thickness part will be separated clearly, when a small diameter part 32a is grasped, it can prevent that an operator's hand slips. In addition, the corner | angular part used as the boundary of a normal thickness part and a concave-shaped part removes an acute angle part, and is preventing it from damaging an operator's hand.
Moreover, as shown in FIG. 15, it can also comprise so that a level | step difference may be made between the small diameter part 33a provided in the horizontal extension part 33, and the part of normal thickness. By comprising in this way, since the thin diameter part 33a and the normal thickness part will be separated clearly, when a small diameter part is grasped, it can prevent that an operator's hand slips.

Next, another embodiment of the shape of the upward extending portion 32 of the assist grip 31 will be described. The configuration of the assist grip 31 other than the upward extending portion 32 is the same as the configuration described in the first embodiment.
As shown in FIG. 10, the upward extending portion 32 of the assist grip 31 is configured to spread in the side view width direction downward from the central portion in the vertical direction, and a substantially similar hole 32 b is provided in the central portion. Yes. The hole 32b is sized so that the finger side can enter when the front or rear part is gripped, and the AA ′ cross-sectional area of the extended portion excluding the hole 32b is substantially equal to the cross-sectional area of the upper extended portion 32 described above. It is composed equally. By configuring in this way, when the operator gets on and off the vehicle, the operator has a narrowed portion by inserting a finger (hand side) into the hole 32b at the center of the upward extending portion 32, thereby firmly assisting the grip 31. Can be grabbed. In addition, when the tractor 1 unexpectedly loses its posture, it becomes easy to grip the tractor 1 and does not slip. In addition, since the cross-sectional area is not different from that of the upwardly extending portion 32 of the conventional assist grip 31, sufficient strength can be obtained even when stress is applied by the operator.

Next, another embodiment of the shape of the upward extending portion 32 of the assist grip 31 will be described. The configuration of the assist grip 31 other than the upward extending portion 32 is the same as the configuration described in the first embodiment.
As shown in FIG. 11, the upward extending portion 32 of the assist grip 31 is provided with a substantially oval and groove-shaped recess 32c that is long in the vertical direction at the central portion in the vertical direction. When the operator grips the upward extending portion 32 of the assist grip 31, the operator can put a finger on the concave portion 32c. However, conversely to the above, the upper extending portion 32 may be provided with a convex portion that is long in the vertical direction at the central portion in the vertical direction. With this configuration, the operator can firmly hold the assist grip 31 by inserting and grasping a finger into the recess 32c when getting on and off the vehicle. In addition, when the tractor 1 unexpectedly loses its posture, it becomes easy to grip it with the heel.
In addition, as shown in FIG. 16, it is also possible to provide the horizontal extension 33 with a substantially oval and groove-shaped recess 33c that is long in the left-right direction. With this configuration, when the seated worker stands up, the assist grip can be firmly grasped by inserting and grasping the finger into the concave portion 33c.

Next, another embodiment of the shape of the upward extending portion 32 of the assist grip 31 will be described. The configuration of the assist grip 31 other than the upward extending portion 32 is the same as the configuration described in the first embodiment.
As shown in FIG. 12, the upward extending portion 32 of the assist grip 31 is provided with a corrugated uneven portion 32d on the front and rear surfaces of the central portion in the vertical direction. The concave and convex portion 32d has a concave and convex shape that allows a finger to enter between the convex portions when the operator grips the upward extending portion 32 of the assist grip 31. By comprising in this way, the assist grip 31 can be firmly grasped. In addition, when the tractor unexpectedly loses its posture, it becomes easy to grip it without slipping. However, the concavo-convex portion 32d can be provided on the side surface or the entire circumference. Further, it is possible to provide a large number of concave and convex intervals, and to reduce the depth of the concave portion to prevent slippage.
Moreover, as shown in FIG. 17, it is also possible to provide the uneven | corrugated | grooved part 33d in the front-back surface of the horizontal extension part 33. As shown in FIG. The concave and convex portion 33d has a concave and convex shape that allows a finger to enter between the convex portions when the operator grips the horizontally extending portion 33 of the assist grip 31. By comprising in this way, the assist grip 31 can be firmly grasped.

Next, another embodiment of the shape of the upward extending portion 32 of the assist grip 31 will be described. The configuration of the assist grip 31 other than the upward extending portion 32 is the same as the configuration described in the first embodiment.
As shown in FIG. 13, the upward extending portion 32 of the assist grip 31 has a uniform thickness, and is formed to have a substantially “reverse S” shape in side view. In other words, the upward extending portion 32 of the assist grip 31 extends a predetermined length from the upper surface of the dashboard 10 obliquely forward and upward in a side view, and then bends obliquely upward and rearward to extend a predetermined length. It is bent to a predetermined length.
By forming two bent portions in the upper extending portion 32 in this way, when the operator grasps the upper extending portion 32 of the assist grip 31, his / her hand is placed on the “inverted S” bent portion from above. Since it becomes easy to apply, the assist grip 31 can be firmly held when boarding. When getting off the vehicle, it is possible to easily hold the upper part of the diagonal front from above, so that it can be firmly held. Further, when the tractor 1 unexpectedly loses its posture, the tractor 1 is not caught and slipped at the bent portion. Moreover, since thickness does not change with the conventional assist grip, sufficient intensity | strength can be acquired even when it is a time when stress is applied by an operator.

  As described above, the assist grip 31 of the tractor 1 according to the present invention is the assist grip 31 disposed in front of the handle 11 in order to support the weight when getting on or off the control unit 4. 31 is formed in a substantially gate shape from a pair of left and right upper extending portions 32 and a horizontal extending portion 33 linking the upper ends of the upper extending portions 32, and the upper extending portion 32 or the horizontal extending portion 33 or both are formed with small diameter portions 32a and 33a. By configuring in this way, by forming the narrow-diameter portion, the operator can easily grip when getting on and off, and can hold the body firmly by gripping the assist grip without slipping.

  Moreover, the said small diameter part 32a is formed in the curved surface shape in the middle part outer periphery of the said upper extension part 32 or the horizontal extension part 33, or both. By configuring in this way, the assist grip can be moved while being slid to a position where it is easy to hold, and the force when the operator grasps the small diameter portion is dispersed and the holding force can be maintained.

  The narrow diameter portion 32a is formed in a step shape in the middle portion of the upper extension portion 32 or the horizontal extension portion 33 or both. By comprising in this way, since the narrow diameter part and the part formed with the normal diameter are clearly separated, when a small diameter part is grasped, it can prevent a worker's hand slipping.

  In addition, the assist grip 31 is arranged in front of the handle 11 so as to support the weight when getting on the control unit 4 or getting off the vehicle. The upper end of the extension part 32 is formed in a substantially gate shape from the horizontal extension part 33 connected to the upper part, and the upper extension part 32 is configured to be wide in the front-rear direction, at the substantially central part in the front-rear width direction of the extension part. A hole 32b is provided. With this configuration, when the operator grips the assist grip when getting on or off the vehicle, the operator can grip the assist grip firmly by inserting a finger or hand into the hole, and the body can be securely gripped without slipping. Can support.

  In addition, the assist grip 31 is arranged in front of the handle 11 so as to support the weight when getting on the control unit 4 or getting off the vehicle. The upper end of the extending portion 32 is formed in a substantially gate shape from the horizontal extending portion 33 that is connected to the upper portion, and the concave portion or the convex portion 32c is formed on the outer periphery of the upper extending portion 32 and / or the horizontal extending portion 33. , 33c. By configuring in this way, the operator can grasp the assist grip firmly by putting his / her finger in the concave part when getting on / off, or by hooking the finger on the convex part and gripping it securely without slipping Can support the body.

  In addition, the assist grip 31 is arranged in front of the handle 11 so as to support the weight when getting on the control unit 4 or getting off the vehicle. The upper end of the extension portion 32 is formed in a substantially gate shape from the horizontal extension portion 33 that connects the upper ends, and a continuous unevenness 32d is formed on the outer periphery of the middle portion of the upper extension portion 32 and / or the horizontal extension portion 33. It is provided. By configuring in this way, when you grip the assist grip, by positioning your finger according to the unevenness, you can fit easily, grip the assist grip firmly, and support the body without slipping Can do.

  In addition, the assist grip 31 is arranged in front of the handle 11 so as to support the weight when getting on the control unit 4 or getting off the vehicle. The upper end of the extending portion 32 is formed in a substantially gate shape from the horizontal extending portion 33 that connects the upper ends, and the upper extending portion 32 is formed in a substantially “S” shape in a side view. With this configuration, the operator can grip the assist grip from obliquely upward when getting on or getting off, and can easily hold the body and hold the body with certainty. Further, when riding, the assist grip can be grasped from a state where the hand is raised in a “C” shape, and there is no useless movement, and the body can be grasped and held with a stable posture.

The side view which showed the whole structure of the tractor which concerns on one Example of this invention. The perspective view of a control part. The rear perspective view of a control part. The expansion rear perspective view which showed the attachment part of the assist grip. The side view of a control part. The top view of a control part. The front view of an assist grip. The side view of an assist grip. The side view of the control part concerning another Example. The side view of the control part concerning another Example. The side view of the control part concerning another Example. The side view of the control part concerning another Example. The side view of the control part concerning another Example. The top view of the control part concerning another Example. The top view of the control part concerning another Example. The front view of the assist grip concerning another Example. The top view of the control part concerning another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tractor 2 Engine frame 4 Control part 6 Front wheel 7 Rear wheel 10 Dashboard 11 Handle 31 Assist grip 32 Upper extension part 33 Horizontal extension part

Claims (7)

  In the assist grip disposed in front of the steering wheel to support the weight when getting on or off the control unit, the assist grip is connected to the pair of left and right upper extending portions and the upper end of the upper extending portion. An assist grip for a tractor, characterized in that it is formed in a substantially gate shape from a horizontal extending portion, and a narrow-diameter portion is formed in the upper extending portion and / or the horizontal extending portion.   2. The assist grip for a tractor according to claim 1, wherein the narrow-diameter portion is formed in a curved shape on the outer periphery of the middle portion of the upper extension portion, the horizontal extension portion, or both.   2. The assist grip for a tractor according to claim 1, wherein the narrow-diameter portion is formed in a step shape in the middle portion of the upward extension portion, the horizontal extension portion, or both.   In the assist grip disposed in front of the steering wheel to support the weight when getting on or off the control unit, the assist grip is connected to the pair of left and right upper extending portions and the upper end of the upper extending portion. The upper extension portion is formed to be wide in the front-rear direction, and a hole is provided in a substantially central portion in the front-rear width direction of the upper extension portion. Tractor assist grip.   In the assist grip disposed in front of the steering wheel to support the weight when getting on or off the control unit, the assist grip is connected to the pair of left and right upper extending portions and the upper end of the upper extending portion. The tractor assist grip is formed in a substantially gate shape from the horizontal extending portion, and a concave portion or a convex portion is formed on an outer periphery of the middle portion of the upper extending portion and / or the horizontal extending portion. .   In the assist grip disposed in front of the steering wheel to support the weight when getting on or off the control unit, the assist grip is connected to the pair of left and right upper extending portions and the upper end of the upper extending portion. An assist grip for a tractor, which is formed in a substantially gate shape from a horizontal extending portion, and has continuous irregularities on the outer periphery of the upper extending portion and / or the horizontal extending portion. In the assist grip disposed in front of the steering wheel to support the weight when getting on or off the control unit, the assist grip is connected to the pair of left and right upper extending portions and the upper end of the upper extending portion. An assist grip for a tractor, which is formed in a substantially gate shape from a horizontal extending portion, and the upper extending portion is formed in a substantially “S” shape in a side view.

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