JPH0519270Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vibration-proof mounting structure for a side cover on a bonnet provided on a traveling machine such as an agricultural tractor.

[Problems to be solved by the prior art and the invention] Generally, in this type of work vehicle, the bonnet is constructed by removably attaching a side cover between the bonnet top plate and the body frame side. Some vehicles are designed to allow inspection and maintenance of the engine, battery, etc. housed inside the bonnet by removing the cover.

By the way, when installing the side cover between the bonnet top plate and the aircraft frame as described above,
It is good if the side cover can be positioned and supported using a large member such as a steering cover or a radiator, but if such a support member is not available, it is necessary to somehow position and support the side cover so that it does not go inside too much.

For this reason, conventionally, the side cover has been positioned and supported via a dedicated positioning member provided on the front grill. However, the side cover covers the side of the engine and is located in an area subject to strong vibrations.As a result, unless strict anti-vibration measures are taken for the side cover, it will generate unpleasant chatter and other noises. There is a problem. To solve this problem, various anti-vibration measures have been attempted, but in order to provide reliable anti-vibration functionality while positioning and supporting the side cover, conventionally, a large amount of anti-vibration measures have been used that are long in the vertical direction relative to the inner surface of the side cover. However, in this case, the receiving member for the vibration isolator must be formed to match the long vibration isolator.

By the way, as mentioned above, if a large component such as a radiator is installed inside the bonnet, there are anti-vibration pads on the left and right edges of the large component that are close to the side cover. It is possible to assemble the materials stably.

However, in recent years, many vehicles have been produced in which the battery is located at the front of the bonnet, and a large component such as a radiator is located behind it to suppress battery temperature rise as much as possible. In some cases, the bonnet does not have a large member for attaching a large vibration isolator, and as a result, it becomes necessary to separately provide a dedicated receiving member to receive and support the large vibration isolator, which complicates the structure. Moreover, it had drawbacks such as an increase in the number of parts, which was a problem.

[Means for solving the problem] In view of the above-mentioned circumstances, the present invention has been devised for the purpose of providing a vibration-proof mounting structure for a side cover on a bonnet that can eliminate these drawbacks. In order to removably attach a side cover of a bonnet with a battery inside the front part between the bonnet top plate and the aircraft frame side, a locking part is formed at the upper end of the side cover, and the locking part is The engaging parts of the bonnet top plate are engaged and disengaged through a pair of front and rear vibration isolating rubbers that are set to receive elastic force in the vertical and horizontal directions without the engaging parts directly touching each other. While freely receiving and supporting the side cover, the front and lower ends of the side cover are removably engaged with the fuselage frame through stop members with elastic functions that resist upward loads, and are also attached to the bonnet. Anti-vibration rubber is provided at the tip of the front and rear positioning members that extend in the left-right direction from the internal parts of the side cover, and presses it outward by coming into elastic contact with the inner surface of the vertically midway part of the side cover. It is characterized by this.

With this configuration, the present invention has a simple structure for the side cover without using a large amount of vibration isolating material in a case where the battery is arranged at the front of the bonnet, and has an excellent vibration isolating function. It is designed so that it can be installed while

[Example] Next, an example of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes the main body of an agricultural tractor, and the bonnet 2 of the main body 1 is composed of members such as left and right side covers 3, a top plate 4, and a front grill 5, which will be described later. Yes, the bonnet 2 formed by these
Inside, there is a battery 7 in front of the radiator 6a.
The engine 6 is installed at the rear, but the battery 7 is attached to the fuselage frame 1a.
The battery base 8 is mounted on a battery base 8 that is integrally fixed to the battery base 8. Reference numeral 9 denotes a holding metal fitting for the battery 7, and the holding metal fitting 9 is constructed of an L-shaped member that is long in the left-right direction. By inserting the threaded portion 10b at the upper end of the screw rod 10 that is locked to the battery base 8 and tightening it with a nut 11, the battery 7 can be held at its front upper edge by the holding metal fitting 9. It is designed so that it can be integrally attached to the fuselage frame 1a side in a state where it can be attached.

On the other hand, the side cover 3 is constituted by a plate-shaped body that is long in the front and back direction, and the side cover 3 has a plurality of locking parts 3a on the upper edge in the front and back (in the embodiment, one pair in the front and back). ) An engaging portion 4 formed on the side edge of the top plate 4 with a vibration isolating rubber 12 interposed therebetween.
It is removably engaged with a (see Figure 8), but
With this anti-vibration rubber 12, the side cover 3 can
While not touching the top plate 4 directly,
Moreover, it is configured to be received and supported in an elastic manner in the vertical direction and the horizontal direction.

Further, the lower edge portion of the side cover 3 is integrally attached to the body frame 1a side by being engaged and fixed with stop members 13 and 14 arranged at the front and rear. Here, the rear stop member 14 is a clutch housing 1 integrated with the fuselage frame 1a.
5 side, and a clip piece 17 consisting of a pair of upper and lower plate-like pieces provided on the inner surface of the side cover 3 and facing slightly downward. The clip piece 17 is removably fixed by pushing and fitting the clip piece 17 into the locking rod 16, but the clip piece 17 is elastically held against the vertical movement of the locking rod 16. It is becoming more and more popular.

The front stop member 13 includes a locking hook 18 pivotably supported on the side cover 3, and a battery base 8 integrally provided on the body frame 1a.
The locking pin 19 is a swing shaft facing in the front-rear direction that is swingably supported on a bracket 8a fixed to the bottom surface of the battery base 8. It protrudes outward from 20. This locking pin 19 is constantly urged downward by a torsion machine 21 wound around a swing shaft 20, and the locking hook 18 can be swung by operating a knob 18a. Locking pin 1
At this time, the sight cover 3 is urged downward by the torsion mechanism 21 of the locking pin 19.

Further, the holding fitting 9 of the battery 7 described above extends long in the left-right direction, and vibration-proofing rubber 23 made of a rubber elastic material is integrally fixed to both ends thereof, and the attached side cover 3 The front positioning member 22 is in elastic contact with the inner surface of the front part of the side cover 3 in the vertical direction, and receives and supports the front part of the side cover 3 so that the front part does not sink inward. . Further, the rear positioning member 24 is constructed by providing a bracket 24a fixed to the clutch housing 15 with a vibration isolating rubber 24b.

When installing the side cover 7, when the side cover upper edge locking part 3a is engaged with the engaging part 4a of the top plate 4 and the side cover 3 is allowed to hang down in its natural state, the front and rear positioning members 22, 24 are The positioning members 22 and 24 are placed against the inner surface of the midway part of the side cover 4 in the vertical direction, and in this state, when the lower end of the side cover is further fixed to the fuselage using the stoppers 13 and 14, the positioning members 22 and 24 are , the side cover 4 is configured to press outwardly into contact with the inner surface of the vertically midway portion, and to be attached in this state.

In the embodiment of the present invention constructed as described above, when inspecting or maintaining the side cover 3, first operate the knob 18a to lock the locking hook 1.
8 from the locking pin 19, pull the side cover 3 toward you to remove the clip piece 17 from the locking rod 16, and disengage the upper edge from the top plate 4. Therefore, it can be easily removed.

On the other hand, to attach the side cover 3, the operation is the opposite of this, that is, the upper end locking part 3a is attached to the top plate engaging part 4.
It is attached by locking it to a and allowing it to hang down in its natural state, and then using the stop members 13 and 14 to stop the lower end front and back.

By the way, the front part of the side cover 3 attached in this manner can be reliably attached with an excellent anti-vibration function.

In other words, at the front and back of the side cover 3, the upper end is supported elastically in the vertical and horizontal directions with respect to the top plate 4, and the lower end is supported by the bullets 2 provided on the stop members 13 and 14.
1 and the clip piece 17 in a state that elastically resists an upward load, and the upper and lower sides of the side cover 3 are elastically supported in this way. , furthermore, vibration-proof rubber 2 provided on the positioning members 22 and 24.
3 and 24a, it is elastically supported outward in the left-right direction. As a result, the side cover 3 is positioned and supported in an elastically tensioned state not only in the vertical direction but also in the horizontal direction, and is extremely effective against vibrations in the vertical and horizontal directions. This results in improved vibration-proofing properties.

In this way, the side cover 3 includes a vibration isolating rubber 12 that elastically supports the upper edge in the vertical and horizontal directions;
The vibration isolating rubber 23, 24a elastically supports the vertical midway portion outward, and the clip piece 17 and elastic device 21 elastically support the edge of the paper so as to resist the upward load. Due to the elastic support effect exerted, the top plate 4 and the side cover 3 are installed in a state where they are elastically tensioned in the vertical and horizontal directions without being in direct contact with each other. As a result, the side cover 3 does not require a large amount of anti-vibration rubber as in the past, but instead has anti-vibration rubber 12, 23, which is only provided at the upper end and in the middle.
24a, the elastic force of the bullet 21 and the clip piece 17 provided at the lower end can provide an excellent vibration-proofing function, effectively suppressing unpleasant chattering noise caused by vibration of the machine body, etc. This can be avoided, significantly reducing noise generation, and simplifying the structure.

In addition, since the member 22 for positioning the front part of the side cover 3 is constructed using the battery presser fitting 9 that is extended in the left and right direction as described above, the parts can be used for multiple purposes and an increase in the number of parts can be suppressed. However, the vibration isolating rubber 23 attached to the tip of the presser metal fitting 9 may be small enough to press the middle part of the side cover 3 outward as described above, so it is not necessary to use the conventional one. There is no need for a receiving member for receiving a large vibration isolating rubber that contacts substantially the entire width of the side cover from top to bottom, and a reduction in size and weight can be achieved here as well.

The battery 7 is located at the front, and there is no part where a large vibration-proof rubber receiving member can be easily attached because there is a large member such as a radiator close to the inner surface of the front part of the bonnet. By effectively utilizing the battery holding fitting 9 disposed at the front of the bonnet, the front of the bonnet can be reliably attached with an excellent vibration-proofing function.

[Operations and Effects] In summary, since the present invention is constructed as described above, the upper end of the side cover is elastically supported with respect to the top plate via the anti-vibration rubber,
The lower end of the side cover is attached with elastic resistance due to the elastic function of the stopper member, and the vertical midway part of the side cover is elastically supported in this way. It is elastically supported by rubber toward the outside in the left and right direction. As a result, while the top plate and the side cover do not come into direct contact, the side cover has elasticity provided in the anti-vibration rubber on the upper edge side, the anti-vibration rubber on the middle part side, and the stopper member on the lower edge side. Under the cooperative action of the functions, it is mounted and supported in a state of elastic tension in the vertical and horizontal directions. Therefore, the side cover does not require a large amount of anti-vibration rubber, which is required when attaching it to the inner circumferential surface of a conventional side cover in a substantially square shape. By making effective use of the vibration-proofing rubber, which is only scattered around, and the elastic function provided in the stopper member, extremely excellent vibration-proofing function is demonstrated against vertical and horizontal vibrations. As a result, it is possible to effectively avoid the generation of unpleasant chatter noise caused by body vibrations, etc., and the generation of noise can be significantly reduced, and the structure can be simplified.

In addition, each of the above-mentioned anti-vibration rubbers can be small-sized and elastically supported in spots, so for example, extending the butterfly retaining metal fittings in the left and right direction and attaching them to the ends corresponds to large-sized anti-vibration rubbers as in the past. It is possible to do this without having to attach a large attachment member to the tip of the presser fitting, and a reduction in size and weight can be achieved here as well.

[Brief explanation of the drawing]

The drawings show an embodiment of the vibration-proof mounting structure for the side cover in the bonnet according to the present invention, in which Fig. 1 is an overall side view of an agricultural tractor, Fig. 2 is a sectional view of the surface of the bonnet, and Fig. Fig. 3 is a plan view of the bonnet, Fig. 4 is a side view of the bonnet, Fig. 5 is a sectional view taken along line A-A in Fig. 4, Fig. 6 is a sectional view taken along line B-B of Fig. 7, and Fig. 7 is a front stop mechanism. FIG. 8 is a sectional view of the top plate portion. In the diagram, 2 is the bonnet, 3 is the side cover, and 5 is the bonnet.
1 is a top plate, 7 is a battery, 9 is a presser metal fitting, 12 is a vibration-proof rubber, 17 is a clip piece, 22 and 24 are positioning parts, 21 is a bullet, and 23 and 24a are vibration-proof rubbers.

Claims (1)

[Claims for Utility Model Registration] 1. In order to removably attach a side cover of a bonnet with a battery inside the front part between the bonnet top plate and the aircraft frame side, a locking part is provided at the upper end of the side cover. forming the locking portion,
The engaging parts of the bonnet top plate are engaged and disengaged through a pair of front and rear vibration isolating rubbers that are set to receive elastic force in the vertical and horizontal directions without the engaging parts directly touching each other. While freely receiving and supporting the side cover, the front and lower ends of the side cover are removably engaged with the fuselage frame through stop members with elastic functions that resist upward loads, and are also attached to the bonnet. Anti-vibration rubber is provided at the tip of the front and rear positioning members that extend in the left-right direction from the internal parts of the side cover, and presses it outward by coming into elastic contact with the inner surface of the vertically midway part of the side cover. A vibration-proof mounting structure for a side cover on a bonnet, which is characterized by: 2. A side cover for a bonnet according to claim 1, wherein the front positioning member of the front and rear positioning members is formed by extending a battery holding fitting in the left-right direction. Anti-vibration mounting structure.