JP5150239B2 - Bucket cover - Google Patents

Description

  The present invention relates to a bucket cover attached to an upper opening of a bucket of an aerial work vehicle.

  2. Description of the Related Art Conventionally, there is known an aerial work vehicle in which a working bucket is attached to the tip of a boom via an articulated arm.

  Such an aerial work vehicle overturns and contracts the boom and stores the bucket in the storage position during traveling, but the bucket is greatly shaken during traveling because the bucket is attached via an articulated arm. For this reason, the front side (the side opposite to the side (rear side) where the multi-joint arm is attached) is placed on the bucket rest extending in the vehicle width direction to prevent the shaking.

  On the other hand, when the bucket is stored, a bucket cover is hung so that rainwater or the like does not enter the upper opening of the bucket, but the bucket cover is fixed with a band or the like so that it does not come off during travel (see Patent Document 1). .

One end of this band is fixed to one end of the bucket cover. By passing this band under the bottom of the bucket and hooking the hook provided at the other end of the band to the other end of the bucket cover, the bucket cover is attached to the bucket. It is to be fixed. The band is branched into two at both ends.
Japanese Patent No. 3398280

  However, the bucket cover is usually attached with the bucket stored, and an operator gets on the step and puts the bucket cover on the bucket, and the bucket cover is fixed by a band. Since the arm of the joint is connected and there is a bucket rest on the other end side, it is necessary to pass the band under the bottom of the bucket, which makes the operation difficult.

  Moreover, when hooking the hooks of the two branched bands around the other end of the bucket cover, the operator cannot hook one of the branched branches unless he / she gets out of the step.

  For this reason, the bucket had to be lowered to the ground without stopping, and the bucket cover had to be attached. However, when mounting on the ground, since the boom is extended to a predetermined length and the bucket is lowered to the rear position of the vehicle, there is a problem that an occupied area considerably larger than an occupied area during work at a high place is required.

  An object of the present invention is to provide a bucket cover that can be easily attached to a bucket stored without lowering the bucket on the ground.

Invention of Claim 1 is a bucket cover provided with the cover main body which covers the upper opening of the bucket of an aerial work vehicle,
A pair of first bands that hang down from one end of each of the opposing long sides of the cover body along one end of both side walls of the bucket;
A second band that is along the edge on one end side of the bottom of the bucket and is in contact with the bottom and is fixed to the lower part of the pair of first bands, respectively.
One end of the first band is fixed to the lower part of the first band or the end of the second band, the third band extends obliquely along the side wall of the bucket, and the other end is fixed to the side of the cover body. It is characterized by that.

  The invention of claim 2 is characterized in that the second band is a jacket covering the edge of the bottom of the bucket.

  The invention of claim 3 is characterized in that, when the bucket is in the retracted posture, the first and third bands along the side wall of the bucket on the vehicle center side are provided with a buckle.

  The invention of claim 4 is characterized in that the attachment position of the buckle is on the second band side.

  According to a fifth aspect of the present invention, there is provided a fourth band in which an intermediate portion of the second band and an intermediate portion of a side portion on one end side of the cover main body are connected.

  According to the invention of claim 1, since the second band is abutted along the edge on one end side of the bottom of the bucket, the bucket rest does not get in the way even when the bucket is stored, The second band is easily attached, and the bucket cover can be easily attached. For this reason, it is not necessary to lower the bucket to the ground and attach the bucket cover, and the bucket cover can be attached with a minimum occupied area.

  According to the invention of claim 2, since the second band is a jacket, the jacket can be fixed to the edge of one end side of the bottom of the bucket. For this reason, the bucket cover is securely tightened. Can be attached to a bucket.

  According to the invention of claim 3, the first and third bands can be easily tightened by the buckle, and the buckle is attached to the first and third bands along the side wall on the vehicle center side of the bucket. Therefore, the tightening operation can be performed safely.

  According to the invention of claim 4, the first and third bands can be easily tightened because the buckle is located on the second band side.

  According to the invention of claim 5, the bucket cover can be further tightened and attached to the bucket by the fourth band.

  Hereinafter, an embodiment which is the best mode of the bucket cover according to the present invention will be described with reference to the drawings.

  In FIG. 1 and FIG. 2, reference numeral 10 denotes a telescopic and undulating boom provided on an aerial work vehicle 11. It has been. The bucket 20 is made of resin, and an upper portion is opened. An operator can get into the bucket 20 through the opening (upper opening).

  The boom 10 is extendable and attached to a turntable (not shown) so as to be raised and lowered.

  When the boom 10 is laid down and retracted and stored in the storage position (the position shown in FIGS. 1 and 2), the bucket 20 is placed on one end side of the bottom portion 21 of the bucket 20 on the bucket rest 13 extending in the vehicle width direction ( The front side is placed. The bucket rest 13 prevents the bucket 20 from shaking during traveling. Reference numeral 14 denotes a support column that supports the bucket rest 13.

  When the bucket 20 is stored, the side wall 24 of the bucket 20 faces the outside of the vehicle, and the side wall 23 faces the center line side in the front-rear direction of the vehicle.

  A step 15 for getting into the bucket 20 is provided in the vicinity of the rear side of the bucket rest 13.

  The opening of the bucket 20 is covered with a waterproof bucket cover 30, and when the bucket 20 is stored, intrusion of rainwater or the like from the opening is intended.

  As shown in FIGS. 3 to 6, the bucket cover 30 includes a cloth cover main body 31 that covers the entire opening of the bucket 20 (see FIG. 1), and a peripheral band 32 disposed on the peripheral edge of the cover main body 31. A fixing band 40, 50, 60 for fixing the cover main body 31 to the bucket 20 and a cloth jacket 70 are provided.

  The cover main body 31 has a substantially rectangular sheet portion 31A that covers the opening of the bucket 20, and an annular peripheral portion 31B that extends downward from the periphery of the seat portion 31A.

  A plurality of band-passing portions 33 are sewn at a predetermined interval on the peripheral portion 31 </ b> B, and the peripheral band 32 is passed through these band-passing portions 33. As shown in FIG. 2, a buckle (locking tool) 34 is attached to one end of the peripheral band 32, and the peripheral band 32 can be tightened by locking the other end of the peripheral band 32 to the buckle 34. It is like that.

  As shown in FIG. 4, the fixed band 40 includes three fixed band portions 41 </ b> A to 43 </ b> A having one end sewn on the peripheral edge portion 31 </ b> B of the cover body 31, and three fixed band portions sewn to the jacket 70 on the other end. 41B to 43B. The fixed band 43A and the fixed band 43B constitute a first band, the fixed band 41A and the fixed band 41B constitute a third band, and the fixed band 42A and the fixed band 42B constitute a third band.

  The other end portions 41Aa to 43Aa of the fixed band portions 41A to 43A are folded and sewn in a double stitch, and buckles (locking tools) 44 to 46 are attached to the other end portions 41Aa to 43Aa, respectively. The lengths of the fixed band portions 41A to 43A are set so that the attachment positions of the buckles 44 to 46 are in the vicinity of the step 15, that is, in the vicinity of the jacket 70.

  The one end portions 41Ba to 43Ba of the fixed band portions 41B to 43B are also folded back and sewn in a double stitching to prevent them from coming off.

  As shown in FIG. 5, the fixed band 50 includes three fixed band portions 51 </ b> A to 53 </ b> A having one end sewn on a peripheral edge portion 31 </ b> B of the cover body 31 that is a side opposite to the side where the fixed band 40 is sewn, The other end (lower end) has three fixed band portions 51 </ b> B to 53 </ b> B sewn on the jacket 70. The fixed band 53A and the fixed band 53B constitute a first band, the fixed band 51A and the fixed band 51B constitute a third band, and the fixed band 52A and the fixed band 52B constitute a third band.

  The other end portions 51Aa to 53Aa of the fixed band portions 51A to 53A are folded back and sewn in double stitches, and buckles (locking tools) 54 to 56 are attached to the other end portions 51Aa to 53Aa, respectively. The lengths of the fixed band portions 51A to 53A are set so that the attachment positions of the buckles 54 to 56 are in the vicinity of the step 15 (jacket 70).

  The one end portions 51Ba to 53Ba of the fixed band portions 51B to 53B are also folded back and sewn in a double stitching to prevent them from coming off.

  In this embodiment, the fixed band portions 51B to 53B are engaged with the buckles 54 to 56 and connected to the fixed band portions 51A to 53A. However, each of the fixed band portions 51B to 53B may be composed of one band without using the buckles 54 to 56. In this case, the lengths of these bands are set in advance so as to be an appropriate length in a state where the bucket cover 30 is attached to the bucket 20.

  As shown in FIG. 6, the fixed band (fourth band) 60 includes a fixed band portion 61 </ b> A whose one end is sewn on the middle portion of one side (side portion) of the peripheral portion 31 </ b> B of the cover body 31, and the other end. And a fixed band portion 61B sewn on the jacket 70. The other end portion 61Aa of the fixed band portion 61A is folded and sewn in double stitching, and a buckle (locking tool) 62 is attached to the other end portion 61Aa.

  One end portion 61Ba of the fixed band portion 61B is also folded and sewn in double stitching to prevent it from coming off.

  As shown in FIG. 7, the jacket 70 includes a contact portion 71 applied to the lower portion of the front wall portion 22 of the bucket 20, a contact portion 72 applied to the front side of the bottom portion 21 of the bucket 20, and the side wall portions 23 and 24 of the bucket 20. It has the contact parts 73 and 74 applied to the lower front part.

Three drain holes 72 a are provided in the abutting portion 72 of the jacket 70, and two elongated holes 75 and 75 for draining are provided at the corner formed by the abutting portion 72 and the abutting portion 71. Yes.
[How to attach the bucket cover 30]
Next, how to attach the bucket cover 30 configured as described above will be described.

  First, the fixing band portions 51B to 53B of the jacket 70 are engaged with the buckles 54 to 56 of the fixing band portions 51A to 53A of the bucket cover 30 that is outside the vehicle, and the cover main body 31 and the jacket 70 are connected. At the same time, the lengths of the fixed band portions 51 </ b> A to 53 </ b> A and 51 </ b> B to 53 </ b> B are adjusted in advance according to the height of the bucket 20.

  As shown in FIGS. 1 and 2, the boom 10 is laid down and contracted, and the articulated arm 12 is operated to store the bucket 20 in the storage position. At the time of storage, a jib (not shown) for lifting the equipment is removed and the jib is stored in a predetermined location.

  Then, the operator gets into step 15 of the aerial work vehicle 11 and covers the opening of the stored bucket 20 so that the fixed band portions 51A to 53A and 51B to 53B are located on the side wall portion 24 side of the bucket 20. The main body 31 is put on as shown in FIGS. Then, the other end of the peripheral band 32 is engaged with the buckle 34 of the peripheral band 32 to tighten the peripheral band 32.

  By this tightening, the peripheral edge portion 31 </ b> B of the cover main body 31 is brought into close contact with the upper portion of the outer peripheral surface of the bucket 20.

  Next, as shown in FIG. 1 and FIG. 2, the jacket 70 is applied to the corner (edge) on the front wall portion 22 side of the bottom portion 21 of the bucket 20 so as to straddle between the lower portions of the side wall portions 23 and 24 of the bucket 20. The fixed band portions 41B to 43B of the jacket 70 are engaged with the buckles 44 to 46 of the fixed band portions 41A to 43A of the cover main body 31, and the fixed band portions 41A to 43A and 41B to 43B are tightened. That is, the fixing band 40 is tightened.

  The bucket cover 30 is preliminarily locked to the buckles 44 to 46 of the fixed band portions 41A to 43A in a loosened state to make the bucket cover 30 into a large ring shape. The cover 30 may be attached to the bucket 20 as shown in FIGS. In this way, the attachment can be performed more easily. And the fixed band part 41A-43A, 41B-43B, ie, the fixed band 40, is tightened after the attachment.

  By fastening the fixing band 40, the fixing band portions 43A, 43B, 53A, 53B are stretched in a state of hanging from the peripheral edge portion 31B of the cover main body 31, and the fixing band portions 41A, 41B, 42A, 42B and the fixing band portions 51A, 51B, 52A, and 52B are slanted along the side wall portions 23 and 24 of the bucket 20.

  Similarly, the fixed band 60 is tightened by engaging the fixed band 61B of the jacket 70 with the buckle 62 of the fixed band 61 of the cover main body 31.

  By tightening the fixing bands 40 and 60, the cover main body 31 and the jacket 70 are firmly attached to the bucket 20, and it is possible to reliably prevent the cover main body 31 from being detached from the bucket 20 during traveling.

  By the way, the jacket 70 may be applied to the corner of the bottom portion 21 of the bucket 20 on the front wall portion 22 side, so that the bucket 20 is stored and placed on the bucket rest 13 as shown in FIGS. However, it is not necessary to pass under the bottom 21 of the bucket 20, and therefore, the bucket rest 13 does not get in the way and the jacket 70 can be easily applied. For this reason, the attaching operation of the bucket cover 30 becomes simple, and the attaching operation can be performed safely.

  Further, since the jacket 70 is applied to the corner portion of the bottom portion 21 of the bucket 20, the jacket 70 is not displaced when the fixing band 40 is tightened. Therefore, the fixing band 40 is securely tightened. The bucket cover 30 can be securely tightened and attached to the bucket 20.

  Further, since the positions of the buckles 44 to 46 of the fixed band portions 41A to 43A are in the vicinity of step 15, the fixing band portions 41B to 43B are locked to the buckles 44 to 46 and the fixed band portions 41B to 43B are tightened. The work does not need to be stepped out of step 15 and can be done safely and easily.

  Moreover, since the buckles 44 to 46 of the fixed band portions 41A to 43A are located on the center line side in the front-rear direction of the vehicle, the locking and tightening operations can be performed more safely. Moreover, since the bucket cover 30 can be attached in a state where the bucket 20 is stored, the occupation area of the aerial work vehicle 11 can be minimized.

  In the above embodiment, the fixing band 60 is provided, but the fixing band 60 may be omitted if the cover body 31 can be sufficiently fixed to the bucket 20 by tightening the peripheral band 32. Similarly, any one of the fixed band portions 42A, 42B, 52A, 52B and the fixed band portions 41A, 41B, 51A, 51B may be omitted.

  In the above embodiment, the jacket 70 is applied to the corner portion of the bottom portion 21 of the bucket 20, but it is not always necessary to be the jacket 70, for example, along the corner portion of the bottom portion 21 of the bucket 20. The abutting band (second band) may be used. Further, although the fixed band portions 43A, 43B, 53A, 53B are provided along the side walls 23, 24 of the bucket 20, they are provided along both sides of the front wall portion 22 of the bucket 20, and the fixed band portions 43B, 53B are provided. 1 and 2 may be sewn to the contact portions 74 and 73 (see FIG. 7) of the jacket 70. As shown in FIG.

  In this embodiment, the case where the bucket cover 30 is attached to the bucket 20 connected to the articulated arm 12 has been described. However, the present invention is not necessarily limited to this. The bucket cover 30 may be attached to a bucket of an aerial work vehicle in which the position of the bucket rest 13 is different.

  FIG. 8 shows a bucket cover 130 for an aerial work vehicle bucket that does not use the articulated arm 12 or the like. The bucket cover 130 includes a cover main body 131, a peripheral band 132 disposed on the peripheral portion 131 </ b> A of the cover main body 131, and a fixing band 140 for fixing the cover main body 131 to the bucket 20.

  The fixed band 140 includes a fixed band portion 141 provided with three branched band portions 141A to 141C at one end and a fixed band portion 142 provided with three branched band portions 142A to 142C provided at the other end. I have.

  One end of each of the branch band portions 141A to 141C is sewn and fixed to a peripheral edge portion 131A of the cover main body 131 that is one side surface (the rear surface side in FIG. 8) of the bucket 20. Further, the other end portion 141a of the fixed band portion 141 is folded back and sewn in double stitching to prevent it from coming off.

  Similarly, the other ends of the branch band portions 142A to 142C are respectively sewn and fixed to the peripheral edge portion 131A of the cover body 131 on the other side surface side (the front surface side in FIG. 8) of the bucket 20. One end 142a of the fixed band 142 is folded and sewn in a double stitch, and a buckle 143 is attached to the one end 142a. The length of the fixed band portion 142 is set so that the attachment position of the buckle 143 is positioned as high as possible in the bucket 20.

  Further, a belt suspension member 145 is attached to the fixed band portion 142, the suspension member 145 is formed in an annular shape, and the fixed band portion 141 that is locked to the buckle 143 in the suspension member 145. By passing the other end portion 141a, the other end side of the fixed band portion 141 is prevented from sagging.

  By preventing the fixed band portion 141 from sagging on the other end side, it is possible to prevent the field of view of the aerial work vehicle 11 from being obstructed.

It is explanatory drawing which showed the state which attached the bucket cover to the bucket of an aerial work vehicle. It is explanatory drawing which showed the state which looked at the bucket of FIG. 1 from another angle. It is the top view which showed the bucket cover shown in FIG. FIG. 4 is a right side view of the bucket cover shown in FIG. 3. FIG. 4 is a left side view of the bucket cover shown in FIG. 3. It is a front view of the bucket cover shown in FIG. It is the perspective view which showed the jacket of the bucket cover shown in FIG. It is the perspective view which showed the bucket cover of the other example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Work vehicle at high place 20 Bucket 21 Bottom part 30 Bucket cover 31 Cover main body 41A, 41B Fixed band part (3rd band)
42A, 42B Fixed band part (third band)
43A, 43B Fixed band part (first band)
51A, 51B Fixed band (third band)
52A, 52B Fixed band (third band)
53A, 53B Fixed band (first band)
70 Jacket (second band)

Claims (5)

A bucket cover having a cover body covering an upper opening of a bucket of an aerial work vehicle,
A pair of first bands that hang down from one end of each of the opposing long sides of the cover body along one end of both side walls of the bucket;
A second band that is along the edge on one end side of the bottom of the bucket and is in contact with the bottom and is fixed to the lower part of the pair of first bands, respectively.
One end of the first band is fixed to the lower part of the first band or the end of the second band, the third band extends obliquely along the side wall of the bucket, and the other end is fixed to the side of the cover body. A bucket cover characterized by that.   The bucket cover according to claim 1, wherein the second band is a jacket that covers the edge of the bottom of the bucket.   3. The bucket cover according to claim 1, wherein when the bucket is in a retracted posture, the first and third bands along the side wall of the bucket on the vehicle center side are provided with a buckle.   The bucket cover according to claim 3, wherein the attachment position of the buckle is on the second band side.   5. The fourth band according to claim 1, further comprising a fourth band that connects an intermediate portion of the second band and an intermediate portion of a side portion on one end side of the cover main body. Bucket cover as described in.

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