JPH0732256Y2 - Flash lamp mounting structure for agricultural tractors - Google Patents

Description

[Technical Field of the Invention] [Technical Field of the Invention] The present invention relates to a flash lamp mounted on an upper wall of a fan covering a rear wheel, and more specifically, an agricultural tractor in which an open type flash lamp is mounted on the upper wall of the fan. Flash lamp mounting structure.

[Prior art]

As shown in FIG. 4, the agricultural tractor T is provided with left and right fans 45 for covering the rear wheels 9, and flash lamps 46 are attached to the upper walls of the fans 45, respectively.
This flasher lamp 46 has a drainage hole at the bottom, and the harness 47 has an open part in which a waterproof process is omitted and a large takeout hole is used.
The price of the flash lamp itself is low, so there is a feature that the cost can be reduced.

[Problems to be solved by the invention]

By the way, the flash lamp that is attached by using the upper wall of the front cover that covers the rear wheel 9 is conventionally a high-priced waterproof type in consideration of splashing muddy water by the rear wheel 9 when scratching or water discharge during car washing. Therefore, there was a problem that the cost was high.

In view of the above-mentioned conventional circumstances, the present invention was devised to solve the problem, and prevents water from entering inside through the harness outlet hole on the flash lamp side and the harness through hole provided on the upper wall of the fan. By doing
It is an object of the present invention to provide a flashlamp mounting structure for an agricultural tractor capable of mounting an open flashlamp on the upper wall of a fan.

[Means for solving problems]

The present invention that achieves the above object is to mount an open-type flash lamp having a drain hole on the upper wall of a fan covering a rear wheel, and to install a harness through hole of the lamp provided on the upper wall of the fan, While opening rearward from the rear wall of the reinforcing plate that reinforces from the inside, it is unevenly distributed to one side with respect to the harness extraction hole provided in the lamp bottom, and the outer diameter of the harness is overlapped with the through hole and the extraction hole. It is supported by pressure contact with the polymerization holes.

[Action]

Therefore, even if the open type flasher lamp 46 having the water drainage hole 53 is attached to the upper surface of the upper wall 45a of the fan 45 that covers the rear wheel 9, the lamp 46 provided on the upper wall 45a of the fan 45 is By opening the harness passage hole 51 rearward of the rear wall 49a of the reinforcing plate 49 that reinforces the fuser 45 from the inside, and by making the distance S forward with respect to the harness outlet hole 51 provided in the flasher lamp bottom portion 46a,
The outer diameter of the harness 47 can be pressed against and supported by the overlapping hole K where the through hole 50 and the take-out hole 51 overlap with each other.

As a result, the water splashed from the front side F is passed through the harness through hole 50.
The rear wall 49a of the reinforcing plate 49 located in front of the harness 47 can prevent the reinforcing plate 49 from directly scattering to the harness through hole 50, and the outer diameter of the harness 47 can be pressed and supported by the overlapping hole K that overlaps with each other. It is possible to reliably prevent the splashed water from R or the side from entering the inside of the lamp 466.

〔Example〕

Hereinafter, the drawings showing the present invention as an embodiment will be described.

As shown in FIG. 4, in the agricultural tractor T, the engine 1 is arranged in the front, the front end of the clutch housing 2 is connected and fixed to the rear end of the engine 1, and the rear end is connected to the rear end of the clutch housing 2. Mission case 3 that extends for a long time
The front end of is connected and fixed, and further, a front frame 4 that is fixed to the engine 1 and extends forward is provided, and these constitute a monocoque machine body 5 of the agricultural tractor T extending in the front-rear direction.

A bonnet 6 for covering the engine 1 is provided above the front frame 4, and a pair of steerable left and right front wheels 7 are provided on the sides of the bonnet 6, respectively. Left and right rear wheels 9 are arranged respectively,
The rear wheels 9 are each covered by a fan 45 fixed to the side of the mission case 3. A steering wheel 10 which is interlocked with the steering mechanism for the front wheels 7 is provided above and behind the bonnet 6.

Behind the steering wheel 10, there are disposed driver's seats 11 whose left and right sides are surrounded by the above-mentioned fan 45. The driver's seats 11 are lift cases 12 fixed to the upper rear part of the mission case 3. Lift arms 13 which are provided above the lift case 12 are driven on the left and right sides of the lift case 12 so as to be movable up and down around a lift shaft by hydraulic expansion and contraction mechanisms provided in the case 12.

Further, a hitch 14 protruding rearward is fixed to the rear wall of the mission case 3. A front portion of a rotary tiller 15 is rotatably supported on the hitch 14, and an intermediate portion of the rotary tiller 15 and the lift arm 13 are interlockingly connected via a connecting rod 16. The rotary tiller 15 is driven from the PTO shaft 17 via a joint shaft (not shown).

A brake shaft (not shown) in front of the pair of left and right rear wheel shafts 19 supported by the case 3 is provided in the mesh case 3.
A pair of left and right bearings are supported, and a brake mechanism (not shown) for braking the brake shaft is provided in a pair at a portion of the brake shaft projecting to the outside of the case 3. 3 are separately housed in brake cases 20 fixed to both side surfaces of the housing 3.

On the outside of both brake cases 20, operating shafts 21 for respectively operating the braking mechanisms in a braking state and a non-braking state are provided in a protruding manner, and the operating shaft 21 protruding to the right side has a right brake arm 22 and a left side. Left brake arms 23 are fixed to the projecting operating shafts 21, respectively.

As shown in FIGS. 5 to 6, a right step plate 24 and a left step plate 24 are provided between the lower portion of the steering wheel 10 and the lower front portion of the driver's seat 11, and both the step plates 24 are provided. , 24, a brake petal shaft 26 is rotatably positioned below the mesh case 3 and extends laterally through the lower side of the mesh case 3.

An outer right brake petal 27 and an inner left brake petal 29 are juxtaposed on the right step 24, respectively, and the boss 27a of the right brake petal 27 is rotated around the brake petal shaft 26. The boss 29a of the left brake petal 29 is movably positioned and is fixed to the brake petal shaft 26 via a knock pin 26a.

Right arm 2 fixed to boss 27a of right brake petal 27 above
8 and the right brake arm 22, and the left arm 31 fixed to the left end surface of the brake petal shaft 26 and the left brake arm 23 are interlockingly connected by respective brake rod mechanisms 30 described later. ing. Further, the right brake petal 27 and the left brake petal 29 are biased toward the fuselage side by the respective springs 32, so that the brake mechanism is always held in the non-braking state. When the brake pedal is depressed, the brake mechanism operates in a braking state, and when the brake pedal is released, each brake petal 27 (or 29) returns to the non-braking state. A boss 33a rotatably positioned on the brake petal shaft 26 is provided on the left step plate 24 side.
A clutch petal 33 having a is provided rotatably, and the clutch petal 33 is interlockingly connected to a clutch mechanism (not shown).

The brake rod mechanism 30 is configured as follows. That is, as shown in FIG. 7, the brake rod 35 has a right-hand threaded portion 36 of a length L located on one side (petal side),
Connecting pins 37 located on the other side (brake side) and projecting in a direction orthogonal to the axial direction of the rod 35 are respectively provided, and the inner diameter of the cylindrical joint 39 is fitted to the outer diameter of the screw portion 36. However, the cylindrical joint 39 is disposed between the nuts 41, 41 before and after being screwed into the screw portion 36, and the outer diameter of the cylindrical joint 39 is a direction orthogonal to the axial direction of the rod 35. A connecting pin 43 projecting from is provided.

Each brake rod 35 pivotally connects the connecting pin 37 provided on the other side to the brake arm 22 (23) side, and the connecting pin 43 provided on the cylindrical joint 39 to the brake petal 27 (29) side, respectively. By the pivotal connection, the brake arm 22 (23) and the brake petal 27 (29) can be interlockedly connected by the brake rod mechanism 30.

The left and right brake petals 27 and 29 can simultaneously brake the left and right brake mechanisms when the two petals 27 and 29 are integrally linked by the connecting member 44, but when the interlocking member 44 is removed, the left and right brake mechanisms are independent of each other. Then you can brake separately. Although not shown, the connecting pin 37 of the brake rod mechanism 30 may be connected to the brake petal 27 (29) and the connecting pin 43 may be connected to the brake 22 (23).

By the way, like the conventional structure shown in FIG. 8, the brake arm 22 (or 23) and the brake petal 27 (or 29) are used.
The brake rod mechanism 60 for connecting the right and left sides of the brake rod 61 has a right-hand threaded portion 64 and a left-handed threaded portion 62, respectively. It is a tandem system consisting of a left-handed screw joint 63 that is screwed into the rod 61, and the front and rear ends 63 and 65 screwed onto both ends of the rod 61 are connected to the connecting pin 6 respectively.
Brake arm 22 (23) and brake petal 27 by 7
(29) With the state of being set to
The right screw part 64 and the left screw part 62 are rotated by rotating the
The set length of the brake rod 61 having and can be adjusted. The reference numeral 66 in FIG. 8 is a lock nut.

However, the above-mentioned conventional structure has a problem that it is necessary to process the left screw on one of the brake rod and the joint, which increases the cost.

Therefore, as described above, the brake rod 35 is provided with the screw portion 36 located on one side and the connecting pin 37 located on the other side and orthogonal to the rod shaft core.
A cylindrical joint 39 fitted to the outer diameter of the screw portion 36 is provided between the nuts 41 and 41 before and after being screwed to the screw portion 36 so as to be adjustable in the front-rear position, and the outside of the joint 39 By providing a connecting pin 43 whose diameter is orthogonal to the axis of the rod, these connecting pins 37 and 43 are connected to the brake arm 22 (23).
And the nuts 41, 4 provided at the front and rear with the cylindrical joint 39 sandwiched therebetween while being connected to the brake petals 27 (29) respectively.
The length of the brake rod mechanism 30 can be adjusted according to the wear of the brake simply by adjusting the position of 1.

In addition, the brake rod 35 only needs to be machined on the threaded portion 36 located on one side, which eliminates the need for machining the left-handed screw, and the nuts 41, 41 before and after being screwed into the threaded portion 36 do not require the left-handed nut. You can do it.

Next, the flash lamp 46 attached to the upper wall 45a of the fan 45 shown in FIGS. 1 to 3 will be described. That is,
The flash lamps 46 are attached to the upper surfaces of the upper walls 45a of the left and right fans 45 that cover the rear wheels 9 by a pair of left and right mounting bolts 52. The flash lamps 46 have a bottom portion.
It is configured as an open type having a drain hole 53 in 46a.

A harness through hole that opens to the upper wall 45a of the fan 45 is used by using a reinforcing plate 49 having a U-shaped cross section for reinforcing the fan 45, which is fixed to the inside of each fan 45. By arranging 50 in the rear close to the rear wall 49a of the reinforcing plate 49, the splashed water from the front side F is blocked by the rear wall 49a protruding downward so that it does not splash directly to the harness through hole 50. I'm running.

Further, the harness take-out hole 51 opened at the bottom portion 46a of the flasher lamp 46 is formed as a long hole in the front-rear direction with a diameter that presses the outer diameter of the harness 47, and the center of the harness take-out hole 51 is set at the harness through hole 50. Since the outer diameter of the harness 47 can be pressed and supported by the overlapping hole K where the rear side of the through hole 50 and the front side of the take-out hole 51 overlap with each other, the outer diameter of the harness 47 can be pressed and supported on the rear side of the center of the harness 47. , Rear side R,
Alternatively, it is possible to prevent the splashed water from the lateral sides from entering the inside of the lamp 46 through the through hole 50 and the take-out hole 51. in this case,
If the harness through hole 50 is formed larger than the outer diameter of the harness 47 as in the embodiment, the work of inserting the harness 47 into the through hole 50 can be facilitated.

FIGS. 1 and 2 show an example in which the take-out holes 51 are unevenly distributed rearward with respect to the through holes 50 by a distance S.
51 may be laterally or eccentrically distributed in the forward direction, and the outer diameter of the harness may be press-contacted and supported by the overlapping holes K of both holes that overlap each other.

Therefore, since the flash lamp 46 attached to the upper wall 45a of the fan can be an open type with a low price, the cost can be reduced.

[Effect of device]

As described above, according to the present invention, even if the open type flash lamp having the water drain hole is attached to the upper wall of the fan cover that covers the rear wheels, the harness lamp through hole of the flash lamp provided on the upper wall of the fan is provided. Is opened rearward of the rear wall of the reinforcing plate that reinforces the fan from the inside, and is provided so as to be eccentrically located on one side with respect to the harness take-out hole provided in the lamp bottom portion, whereby the outer diameter of the harness is reduced. The through hole and the take-out hole can be pressure-contacted and supported by the polymerization hole in which the through hole and the extraction hole are overlapped with each other.

As a result, the water splashed from the front side can be prevented by the rear wall of the reinforcing plate that is in front of the harness through hole so that it will not be directly splashed into the through hole, and both holes that overlap the outer diameter of the harness with each other. Since it can be pressed and supported by the polymerization hole of
It is possible to prevent water splashing from the rear side or the side from entering the inside of the lamp.

Therefore, since the open type flash lamp can be attached to the upper wall of the fan, the cost can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention. FIG. 1 is a vertical sectional side view of a flasher lamp provided on a fan, FIG. 2 is a view taken in the direction of arrow A of FIG. 1, and FIG. 3 is a flasher lamp. FIG. 4 is an overall side view of an agricultural tractor, FIG. 5 is a side view of an agricultural tractor having a brake rod, FIG. 6 is a plan view of an agricultural tractor having a brake rod, and FIG. 7 is an exploded perspective view of the brake rod. Is. FIG. 8 is an exploded perspective view of a brake rod showing a conventional example. T: Agricultural tractor, 3 ... Mission case, 12 ...
Lift case, 45 …… Fenda, 45a …… Upper wall, 46 ……
Flash lamp, 46a ... bottom, 47 ... harness, 49
…… Reinforcement plate, 49a …… Rear wall, 50 …… Harness through hole, 51
…… Harness outlet hole, 53 …… Water drainage hole, K …… Polymerization hole,
S: distance, F: front side, R: rear side.

Claims (1)

[Scope of utility model registration request] 1. A reinforcement lamp for mounting a release type flasher lamp having a drainage hole on an upper wall of a fan covering a rear wheel so as to reinforce a harness through hole of the lamp provided on the upper wall of the fan from the inside thereof. The opening is located rearward of the rear wall of the plate and is unevenly distributed to one side with respect to the harness take-out hole provided at the bottom of the lamp, and the outer diameter of the harness is pressure-contacted by the superposition hole where the through hole and the take-out hole are overlapped with each other. A flash lamp mounting structure for an agricultural tractor that supports it.