JP2009114732A - Bucket with fork member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bucket with fork members capable of deeply dig out earth and sand or the like. <P>SOLUTION: The bucket with the fork members is provided with a bucket main body 2 having an upper lateral frame member 4, a bottom plate member 5, a back face member 6 arranged between the upper lateral frame member 4 and the bottom plate member 5, and a pair of side face plates 7, 8 and a plurality of the fork members 3a, 3b, etc. which are formed to protrude from a side face that forms the opening h2 of the bucket main body 2 in the length direction of the bottom plate member 5 of the bucket main body 2. Each of a pair of the outermost fork members 3a, 3b of a plurality of the fork members 3a, 3b, etc. is supported by each of a pair of the side face plates 7, 8. Fork members 3... located between the pair of the outermost fork members 3a, 3b of the plurality of the fork members 3a, 3b, etc. are supported by each supporting member 9... which is formed from a position midway of the upper lateral frame member 4 in the direction of the bottom plate member 5 and is connected to the inner surface S6b of the back face member 6 from the position midway of the upper lateral frame member 4. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a bucket used by being connected to a link portion of a civil engineering machine such as a power shovel, and more particularly to a bucket with a fork member that can deeply dig up earth and sand.

  When a large amount of earth and sand and gravel flow in a river due to a typhoon, heavy rain, and other natural disasters, sediment accumulates on large rocks in the river bed.

  In the river bed, when sediment is deposited on large rocks, there are no hiding places (shades of rocks and rocks) for many freshwater fish, frogs, crayfish and aquatic insects that inhabit the river. As a result of the predation of such aquatic animals by egrets, great egrets, river eagles and other birds, the number of fish inhabiting the river is reduced.

  In such a case, for example, a skeleton bucket or a fork excavator for excavation is attached to a civil engineering machine such as a power shovel, the river bed is dug up with the skeleton bucket or excavator fork excavator, and rocks are positioned on the earth and sand ( Arrangement).

  By the way, the conventional skeleton bucket and the conventional excavator for excavation generally have the following shapes.

  8 is a perspective view schematically showing an example of a conventional skeleton bucket, and FIG. 9 is a schematic cross-sectional view of the conventional skeleton bucket shown in FIG. 8 taken along line IX-IX in FIG. It is.

  The skeleton bucket 101 includes a bucket body 102 and claws 103.

  The bucket main body 102 includes an upper horizontal frame member 104, a bottom plate member 105, a back member 106 provided between the upper horizontal frame member 104 and the bottom member 105, one end e104a of the upper horizontal frame member 104, and a bottom plate member 105. A pair of side plates 107 provided on one end e105a of the rear member 106, the other end e106b of the upper horizontal frame member 104, the other end e105b of the bottom plate member 105, and the other end e106b of the rear member 106, 108.

  Each of the claws 103 is provided so as to protrude at an appropriate interval in the longitudinal direction with respect to the length direction of the bottom plate member 105.

  The back member 106 has a skeleton structure by combining a plurality of horizontal bars 106a... And a plurality of vertical bars 106b.

  8 and 9, a member 112 indicates a stay. In the skeleton bucket 101, the stay 112 is attached to the upper surface of the upper horizontal frame member 4 of the bucket body 2. .

  The stay 112 is provided with a pin hole h112 for connecting the stay 112 to an operation link (not shown) of a civil engineering machine such as a power shovel.

  FIG. 10 is a perspective view schematically showing an example of a conventional excavating fork excavator, and FIG. 11 is a schematic side view of the conventional excavating fork excavator shown in FIG.

  This excavating fork excavator 201 is provided with a plurality of toothed longitudinal shafts 203 provided so as to protrude from the cross beam 202 at an appropriate interval and in the longitudinal direction with respect to the length direction of the cross beam 202. In order to reinforce each of the plurality of tooth body longitudinal shafts 203..., A plurality of tooth body longitudinal shafts 203 are connected to each other. 203... Are provided in the transverse direction with respect to the respective length directions of 203.

  10 and 11, the member 212 indicates a stay. In the excavating fork excavator 201, the stay 212 is attached to the cross beam 202.

The stay 212 is provided with a pin hole h212 for connecting the stay 212 to an operation link (not shown) of a civil engineering machine such as a power shovel.
JP-A-2005-200911 Japanese Utility Model Publication No.59-19660

  However, when the conventional skeleton bucket 101 is used to dig up the river bed and perform a work in which the rock is positioned on the earth and sand, the conventional skeleton bucket 101 is configured to be in the length direction of the bottom plate member 105. Since the length of each of the claws 103 provided so as to protrude in the vertical direction is short, each of the claws 103 is deeply pushed into the river bed, and each of the claws 103 ... There is a problem that it is difficult to scoop up only large rocks, and it is difficult to dig up the riverbed and position (place) large rocks on the earth and sand.

  Further, in the conventional excavating fork excavator 201, the length of each of the plurality of tooth body vertical rods 203... Is longer than that of the claws 103 of the conventional skeleton bucket 101 compared to the conventional skeleton bucket 101. Although it is made longer than each length, in order to reinforce each of the plurality of tooth body longitudinal rods 203..., Each of the plurality of tooth body longitudinal rods 203. In addition, since the reinforcing bone 204 is provided in the transverse direction with respect to the longitudinal direction of each of the plurality of longitudinal rods 203 for tooth bodies, the riverbed is dug up using the conventional excavating fork excavator 201, When an operation is performed in which a rock is located on the earth and sand, the substantial depth at which each of the plurality of longitudinal body rods 203... Reinforcing bone 2 from the tip of each vertical shaft 203 ... 4 is a length up to the position where 4 is provided, and each of the plurality of longitudinal body rods 203... Is deeply pushed into the river bed, and each of the claws 103. There is a problem that it is difficult to crawl up, and it is difficult to dig up the riverbed and position (place) a large rock on the earth and sand.

  Further, in order to reinforce each of the plurality of tooth body longitudinal shafts 203..., A plurality of tooth body longitudinal shafts 203 are connected so as to connect each of the plurality of tooth body longitudinal shafts 203. When the configuration in which the reinforcing bones 204 are provided in the transverse direction with respect to the length direction of each of the... Since the force is applied to each of the parts, when the reinforcing bone 204 is provided at a position sufficiently away from the distal end of each of the plurality of tooth vertical shafts 203. Although it is possible to push each of the body vertical shafts 203... Deeply into the river bed, when a force is applied to each of the plurality of dental body vertical shafts 203. Due to the large force (moment force) applied to each of the joints between the body vertical rods 203... And the reinforcing bone 204, Towards each Tatekine 203 ... teeth of several found by rocks or the like, the positional relationship is deformed, there is a problem that.

  For this reason, in order to reinforce each of the plurality of tooth body longitudinal shafts 203..., The plurality of tooth body longitudinal shafts 203. In the configuration in which the reinforcing bones 204 are provided in the transverse direction with respect to the length direction of each of 203..., The reinforcing bones 204 are provided from the respective distal end portions of the plurality of tooth body longitudinal rods 203. There is a problem that there is a limit in increasing the length to a certain position.

  The first object of the present invention is to solve the above-described problems, and the length from the tip portion of each of the plurality of fork members to the base thereof is made sufficiently long. Each of the fork members can be deeply pushed into the river bed, and each of the plurality of fork members can be For example, the bucket with a fork member which is hard to deform | transform is provided.

Further, as is apparent from each of FIGS. 8 and 9, the conventional skeleton bucket 101 is
The back member 106 has a skeleton structure by combining a plurality of horizontal bars 106b... And a plurality of vertical bars 106a.

  When the back member 106 is viewed from the side, the outer surface S106a of the back member 106 is in a direction opposite to the opening h102 of the bucket body 102 at a position in the middle between the upper horizontal frame member 104 and the bottom plate member 105. It is curved.

  That is, in the conventional skeleton bucket 101, the outer surface S106a of the back member 106 is curved in a convex shape.

  For this reason, the conventional skeleton bucket 101 uses the outer surface S106a of the back member 106 to dig up the riverbed and perform a work in which the rock is located on the earth and sand, and then the place where such a work was performed. There was a problem that it was difficult to level.

  Further, as is clear from each of FIGS. 10 and 11, the conventional excavator fork excavator 201 has a flat plate shape, and the cross beam 202 is used to dig up the river bed and lay on the earth and sand. In addition, after the work where the rocks are located, we do not plan to do the work to level the place where such work was done.

  For this reason, for example, when the conventional skeleton bucket 101 or the conventional excavator fork excavator 201 is attached to a civil engineering machine such as a power shovel, the rock is positioned on the earth and sand. After the work is performed, if it is necessary to level the place where such work is performed, the conventional excavator fork excavator 201 is removed from the civil engineering machine such as a power shovel, and then the power shovel A civil engineering machine such as a power shovel attached with a conventional excavator fork excavator 201 is evacuated from a work site by attaching a bucket for leveling to a civil engineering machine such as Then, a civil machine such as a bulldozer or a power shovel equipped with a bucket for leveling is sent to the work site. , Must be ground leveling work, it has been made tedious task of.

  The second object of the present invention is to solve the above-described problems. The outer surface of the back member is used to dig up a river bed and place a large rock on the earth and sand. ) To provide a bucket with a fork member that can efficiently perform leveling such as returning the irregular riverbed uniformly. .

  A third object of the present invention is to provide a bucket with a fork member that can easily and deeply push each of a plurality of fork members into a river bed.

  The bucket with a fork part according to claim 1 includes an upper horizontal frame member, a bottom plate member, a back member provided between the upper horizontal frame member and the bottom plate member, one end side of the upper horizontal frame member, and a bottom plate. A pair of side plates provided on one end side of the member and one end side of the back member, and on the other end side of the upper horizontal frame member, on the other end side of the bottom plate member, and on the other end side of the back member. And a plurality of fork members provided so as to protrude from the side surface forming the opening of the bucket body part in the length direction of the bottom plate member of the bucket body part. Each of the pair of fork members located on the outermost side is supported by each of the pair of side plates, and the pair of fork members located on the outermost side among the plurality of fork members. The fork member that is positioned The bottom plate member from the position in, and is supported by a supporting member provided so as to connect the middle position of the upper horizontal frame member portion on the inner surface of the back member.

  In the bucket with a fork part according to claim 2, the support member of the bucket with fork member according to claim 1 has the same shape or substantially the same shape as each of the pair of side plates.

  The bucket with a fork member according to claim 3, each of the pair of fork members located on the outermost side among the plurality of fork members of the bucket with the fork member according to claim 1 or 2, When each of the pair of fork members positioned on the outermost side among the plurality of fork members is viewed in plan, the center line of each of the pair of fork members positioned on the outermost side among the plurality of fork members Alternatively, a fork member that is supported by the lower end portions of each of the pair of side plates and that is positioned between the pair of fork members located on the outermost side among the plurality of fork members, generally along the center line. A pair of forks located on the outermost side among the plurality of fork members when viewed from above, the fork member located between the pair of fork members located on the outermost side among the plurality of fork members Along the fork member centerline or approximately center line positioned between the wood, and is supported by the lower end of the support member.

  When the fork member bucket according to claim 4 is a bucket with the fork member according to any one of claims 1 to 3, when the back member is viewed from the side, the outer surface of the back member is It is curved toward the opening of the bucket main body at a position in the middle of the bottom plate member.

  The bucket with a fork part according to claim 5 is the bottom surface of each of the fork members of the bucket with a fork member according to any one of claims 1 to From the predetermined position toward the end of the upper surface of each of the plurality of fork members.

  The bucket with a fork part according to claim 1, wherein the root part of each of the pair of fork members located on the outermost side among the plurality of fork members is connected to the bottom plate member and each of the pair of side plates. Supported by cooperation with connection to.

  Therefore, among the plurality of fork members, compared to the case where the root portions of each of the pair of fork members located on the outermost sides are supported only by connection to the bottom plate member, In addition to the connection to the bottom plate member, the mechanical strength of the base portion of each of the pair of fork members positioned on the outside can be further increased by the amount connected to each of the pair of side plates.

  As a result, in the bucket with fork portion, the length from the tip portion to the root portion of each of the pair of fork members located on the outermost side among the plurality of fork members, Each of the pair of fork members located on the outermost side among the plurality of fork members when comparing the base portions of each of the pair of fork members located on the outermost side only to the bottom plate member Even when the length is longer than the length from the tip portion to the root portion, for example, each of the pair of fork members positioned on the outermost side among the plurality of fork members using the bucket with the fork portion When projecting deeply into the river bed, a force is applied to each of the pair of fork members located on the outermost side among the multiple fork members by rocks, etc., and the outermost side of the multiple fork members In Even force acts on the root of each of the pair of fork members to location (moment force), among the plurality of fork members, the positional relationship of each of the pair of fork member located outermost hardly deformed.

  In addition, the bucket with a fork portion has a base portion of the fork member positioned between a pair of fork members located on the outermost side among the plurality of fork members, and a connection to the bottom plate member and an upper horizontal frame member Since it is provided so as to be connected to the inner surface of the back member from a position in the middle of the upper horizontal frame member portion in the direction from the middle position of the portion to the bottom plate member, it is supported in cooperation with the connection to the support member. Compared to the case where the fork member located between the pair of fork members located on the outermost side among the two fork members is supported by connection to the bottom plate member, it is located on the outermost side among the plurality of fork members. In addition to the connection to the bottom plate member, the mechanical strength of the base portion of the fork member positioned between the pair of fork members is further increased. In between Min connected to the fork member can be increased.

  As a result, in this bucket with a fork portion, the length from the tip portion of the fork member located between the pair of fork members located on the outermost side to the root portion of the plurality of fork members is set to the plurality of fork members. Among the fork members, the fork member root portion located between the pair of fork members located on the outermost side is the most connected to the bottom plate member, Even when the fork member located between the pair of fork members located on the outside is longer than the length from the tip portion to the root portion, for example, using this fork bucket, a plurality of fork members When the fork member located between the outermost pair of fork members is deeply pushed into the river bed, it is located on the outermost side among the multiple fork members due to rocks etc. A force is applied to the fork member located between the pair of fork members, and a force (moment force) is applied to the root of the fork member located between the pair of fork members located on the outermost side among the plurality of fork members. Even if this works, the positional relationship of the fork members located between the pair of fork members located on the outermost side among the plurality of fork members is also difficult to deform.

  That is, in this bucket with a fork portion, even if the length from the tip portion to the root portion of each of the plurality of fork members is increased, for example, using the bucket with the fork portion, a plurality of fork members are used. When each of these is pushed deeply into the river bed, even if a large force is applied to the plurality of fork members by rocks or the like, the positional relationship between the plurality of fork members is difficult to deform.

  As a result, in this bucket with a fork portion, the length from each tip portion to the root portion of each of the plurality of fork members can be increased, so that the distance from each tip portion to the root portion of each of the plurality of fork members is as described above. By increasing the length, for example, by thrusting each of the multiple fork members deep into the river bed, scooping up rocks etc. deep in the river bed, digging up the river bed, on the earth and sand, The work where the rock is located can be easily performed.

  That is, if this bucket with a fork is used, for example, the river bed is dug up deeply, and the rocks in the shallow river bed as well as the rocks in the deep river bed are positioned (placed) on the earth and sand. It is possible to provide such aquatic animals with a hiding place (shades of rocks and rocks) for aquatic animals such as freshwater fish, frogs, crayfish and aquatic insects that inhabit rivers. .

  As a result, aquatic animals such as freshwater fish, frogs, crayfish, and aquatic insects that inhabit rivers can be hidden behind stones and rocks, so they are preyed by small egrets, great egrets, river eagles, and other birds. As the number of animals decreases, the number of fish inhabiting the river increases.

  Moreover, in this bucket with a fork part, since the whole shape including a some fork member and a bucket main-body part has a bucket shape, a rock etc. are scooped up in a some fork member and a bucket main-body part, and earth and sand On top of this, the work of positioning (arranging) rocks and the like, and by performing such work, it is possible to efficiently perform leveling such as returning the irregular riverbed uniformly.

  In the bucket with a fork part according to claim 2, since the shape of the support member is the same shape or substantially the same shape as each of the pair of side plates, each of the plurality of fork members is made of the same material, the same size, When configured with a material having the same mechanical strength, each of the plurality of fork members has the same or substantially the same mechanical strength with respect to the bucket body portion. When a fork member is pushed deeply into a river bed, even if a force is applied to each of a plurality of fork members by rocks or the like, a fork member having a plurality of fork members is more easily deformed than other fork members. Such a phenomenon is unlikely to occur.

  In the bucket with a fork member according to claim 3, each of the plurality of fork members, when each of the plurality of fork members is viewed in plan, each of the plurality of fork members is supported by a pair of side plates and a side plate. Each of the members is supported along the center line or substantially along the center line. For example, when a fork member is used to project a plurality of fork members deep into the river bed, For example, even if a force is applied to each of the plurality of fork members, such a phenomenon that the fork member having the plurality of fork members bends in an irregular manner is unlikely to occur.

  When the back member is viewed from the side, the fork portion-equipped bucket according to claim 4 is configured such that the outer surface of the back member is in the middle of the position between the upper horizontal frame member and the bottom plate member, and the opening direction of the bucket body portion. Therefore, using the outer surface of the back member, for example, the surface of the ground or a place dug up using a bucket with a fork portion can be flattened or substantially flattened.

  Moreover, in this bucket with a fork part, since the surface (back surface) on the opposite side to the outer surface of a back member is supported by a pair of side plate and a support member, the mechanical strength of a back member is excellent.

For this reason, using the outer surface of the back member, for example, when performing leveling work such as flattening or almost flattening the surface of the ground or a place dug up using a bucket with a fork, the back member It is difficult for a situation such as the shape of the material to be deformed.
The bucket with a fork part according to claim 5, wherein the tip of each of the plurality of fork members is moved from the predetermined position on the lower surface of each of the plurality of fork members to the end of each upper surface of each of the plurality of fork members. For example, when the fork member is used and a plurality of fork members are thrust deeply into the river bed, rocks or the like are positioned on the upper surface of the fork members. Therefore, it is not possible to crawl up rocks, etc. in a plurality of fork members and bucket body parts, and to position (place) rocks etc. on the earth and sand. It is possible to efficiently perform leveling such as returning the regular riverbed to a uniform level.

  Hereinafter, an example of the bucket with a fork member according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view schematically showing an example of a bucket with a fork member according to the present invention.

  2 is a schematic plan view of the bucket with a fork member shown in FIG. 1 as viewed from above, and FIG. 3 is a schematic front view of the bucket with a fork member shown in FIG. 4 is a schematic bottom view of the bucket with a fork member shown in FIG. 1, FIG. 5 is a schematic rear view of the bucket with a fork member shown in FIG. 1, and FIG. FIG. 7 is a schematic right side view of the bucket with fork member shown in FIG. 1, and FIG. 7 is a schematic left side view of the bucket with fork member shown in FIG.

  This bucket 1 with a fork member includes a bucket body 2 and a plurality of fork members 3a, 3b, 3.

  The bucket body 2 is provided between the upper horizontal frame member 4, the bottom plate member (the bottom plate member 5 shown in FIG. 4), and the upper horizontal frame member 4 and the bottom plate member (the bottom plate member 5 shown in FIG. 4). A back member 6 and a pair of side plates 7 and 8 are provided.

  One side plate 7 of the pair of side plates 7 and 8 is provided so as to be connected to one end side e4a of the upper horizontal frame member 4, one end side e5a of the bottom plate member 5, and one end side e6a of the back member 6. ing.

  The other side plate 8 of the pair of side plates 7 and 8 is connected to the other end side e4b of the upper horizontal frame member 4, the other end side e5b of the bottom plate member 5, and the other end side e6b of the back member 6. It is provided to do.

  Each of the plurality of fork members 3 a, 3 b, 3... Is provided so as to protrude from the bottom plate member 5 of the bucket body 2 toward the opening h <b> 2 of the bucket body 2.

  Each of the plurality of fork members 3a, 3b, 3 ... is made of the same material and has the same size and the same shape, or substantially the same size and substantially the same shape. is doing.

  And each of a pair of fork members 3a, 3b located in the outermost side among a plurality of fork members 3a, 3b, 3 ... is supported by each of a pair of side plates 7,8.

  And in this bucket 1 with a fork member, fork member 3 ... located between a pair of fork members 3b, 3b located in the outermost side among a plurality of fork members 3a, 3b, 3 ... Are provided so as to be connected to the inner surface (back surface) S6a of the back member 6 from the middle position of the upper horizontal frame member portion 4 in the direction from the middle position of the upper horizontal frame member portion 4 to the bottom plate member 5. It is supported by support members 9.

  In the bucket 1 with the fork member, each of the support members 9 has the same shape or substantially the same shape as each of the pair of side plates 7 and 8.

  More specifically, each of the pair of side plates 7 and 8 and each of the support members 9... Have the same size and the same shape, or substantially the same size and substantially the same shape. have.

  Moreover, in this bucket 1 with a fork member, as is clear from FIG. 3, the bottom plate member 5 of the bucket body 2 is formed with a plurality of recesses 10, thereby providing a plurality of fork members 3 a, 3 b, .. Have comb teeth 11.

  The number of the comb teeth 11 is equal to the number of the fork members 3a, 3b, 3.

  Each of the comb teeth 11 has the same size and the same shape, or substantially the same size and substantially the same shape.

  In this bucket 1 with a fork member, as is apparent from each of FIGS. 1, 3, 4, 5, and 6, each of the plurality of fork members 3a, 3b, 3. Are placed on each of the plurality of fork members 3a, 3b, 3 ... and each of the comb teeth 11 ..., for example, comb teeth 11 ... .. And the outer periphery of each of the plurality of fork members 3a, 3b, 3... Are connected and fixed by welding.

  Moreover, in this bucket 1 with a fork member, as is clear from FIGS. 1, 3, 4, 5, and 6, one end e3aa of each of a plurality of fork members 3a, 3b, 3,. e3ba, e3a... are positioned in the vicinity of the back surface S6b of the back member 6 or the inner surface (back surface) S6b of the back member 6, and the fork members 3a, 3b,. Each of the comb teeth 11 is connected and fixed by, for example, welding.

  Furthermore, in this bucket 1 with fork members, each of the pair of fork members 3a, 3b located on the outermost side among the plurality of fork members 3a, 3b, 3,. 3b, 3 ..., a pair of fork members 3a, 3b located on the outermost side in plan view (see FIGS. 1 and 2), a plurality of fork members 3a, 3b 3... Of each of the pair of side plates 7, 8 along the center lines Lc 3 a, Lc 3 b of each of the pair of fork members 3 a, 3 b located on the outermost side, generally along the center lines Lc 3 a, Lc 3 b. The fork member 3 that is supported by each of the lower end portions e7a and e8a and that is positioned between the pair of fork members 3a, 3b that are located on the outermost side among the plurality of fork members 3a, 3b, 3,. ... but multiple When the fork members 3a located between the pair of fork members 3a, 3b located on the outermost side among the fork members 3a, 3b, 3 ... are viewed in plan, a plurality of fork members 3a, 3b, along the center line Lc3 ... of the fork members 3 ... positioned between the outermost pair of fork members 3a, 3b, or substantially along the center line Lc3 ... Are supported by the lower end portions e9a of the support members 9.

  More specifically, in the bucket 1 with fork members, one end portion of each of the plurality of fork members 3a, 3b, 3 ... is provided on the upper surface of each of the plurality of fork members 3a, 3b, 3 ... From the e3aa, e3ba, e3a... side, slit portions (cuts) h3a, h3b, h3... having a predetermined length are formed.

  The length of each of the slit portions (cuts) h3a, h3b, h3,... Provided on the upper surfaces of the plurality of fork members 3a, 3b, 3,. Are equal to or slightly larger than the lengths of the lower end portions e7a, e8a, e9a,.

  Moreover, the width | variety of each slit part (cut) h3a, h3b, h3 ... provided in each upper surface of several fork members 3a, 3b, 3 ... is a pair of side plate 7,8 support The lower end portions e7a, e8a, e9a,... Of the members 9 are equal to or slightly longer than the widths of the lower ends e7a, e8a, e9a,.

  And in this bucket 1 with a fork member, in each of slit part (cut) h3a, h3b, h3 ... provided in each upper surface of several fork members 3a, 3b, 3 ... The lower end e7a of the side plate 7, the lower end e8a of the side plate 8, and the lower ends e9a of the support members 9 are fitted together, and the fork member 3a and the lower end of the side plate 7 are fitted together. For example, the fork member 3a and the lower end portions e7a of the side plate 7 are connected and fixed to the both side portions of the slit portion (cut) h3a by welding, and the lower ends of the fork member 3b and the side plate 8 are fixed. For example, the fork member 3b is connected and fixed by welding the fork member 3b and both side surfaces of the lower end portion e7a of the side plate 7 and the both side portions of the slit portion (cut) h3b. Each The lower end portions e9a of the support members 9 ..., for example, the side surfaces of the fork members 3 ... and the lower end portions e9a of the support members 9 ..., and slit portions (cuts) h3 ... Each side is connected and fixed by welding.

  Moreover, in this bucket 1 with a fork member, when the back member 6 is seen from the side, the outer surface S6a of the back member 6 is composed of the upper horizontal frame member 4 and the bottom plate member as is apparent from FIGS. It is curved in the direction of the opening h2 of the bucket body 2 at a position in the middle of the gap (the bottom plate member 5 shown in FIGS. 5, 6 and 7).

  That is, in the bucket 1 with fork member, the outer surface S6a of the back member 6 is curved in a concave shape.

  Moreover, in this bucket 1 with a fork member, each of the front-end | tip part e3ab, e3bb, e3b ... of each of the multiple fork members 3a, 3b, 3 ... is made up of the multiple fork members 3a, 3b, 3 ... The end portions e3ab of the upper surfaces S3aa, S3ba, S3a,... Of the plurality of fork members 3a, 3b, 3,... From the predetermined positions of the lower surfaces S3ab, S3bb, S3b,. It inclines toward each of e3bb, e3b ....

  In FIG. 1, a member 12 indicates a stay. In the bucket 1 with a fork member, the stay 12 is attached to the upper surface of the upper horizontal frame member 4 of the bucket body 2. 13 is attached so as to incline from the upper side to the lower side in the direction of the back member 6 of the bucket body 2 from the opening h2 side of the bucket body 2.

  The stay 12 is provided with a pin hole h12 for connecting the stay 12 to an operation link (not shown) of a civil engineering machine such as a power shovel.

  For example, when digging up a river bed in which earth and sand are accumulated on rocks using this bucket 1 with fork members and performing the operation where the rocks are located on the earth and sand, first, the bucket with fork members An operation link (not shown) of a civil engineering machine such as a power shovel is connected to the pin hole h12 of one stay 12, and the bucket 1 with a fork member is attached to the civil engineering machine such as a power shovel.

  Next, by operating a civil engineering machine such as a power shovel, the plurality of fork members 3a, 3b, 3... The fork members 3a, 3b, 3..

  After that, by operating a civil machine such as a power shovel, the fork members 3a, 3b, 3,... Then, the fork member-equipped bucket 1 is lifted to a position above the river bed.

  Thereafter, if necessary, the bucket 1 with fork member is slightly swung by operating a civil machine such as a power shovel.

  Then, earth and sand, rocks, and a plurality of fork members 3a, 3b of the bucket 1 with fork members, which are scooped up on the plurality of fork members 3a, 3b, 3 ... of the bucket 1 with fork members. In the water scooped up on 3 ..., water and earth and sand smaller than the gap between each of the fork members 3a, 3b, 3 ... of the bucket 1 with fork member, Rocks spill into the river bed from the gaps between the plurality of fork members 3a, 3b, 3 ... of the bucket 1 with fork members, and the plurality of fork members 3a, 3b, 3 of the bucket 1 with fork members. On the..., A rock larger than the gap between each of the plurality of fork members 3a, 3b, 3.

  Next, by operating a civil machine such as a power shovel, the fork members 3a, 3b, 3.. A large rock on the plurality of fork members 3a, 3b, 3 ... of the bucket 1 with a fork member is formed on a portion dug up by the plurality of fork members 3a, 3b, 3 ... of the bucket 1. Drop it.

  Through the above operations, the river bed on which the sediment is deposited can be dug up and the rock can be positioned (arranged) on the sediment.

  Next, when it is necessary to flatten or approximately flatten the surface of the river bed on which the rock is located on the earth and sand, the civil engineering machine such as a power shovel is operated to operate the bucket 1 with the fork member. The plurality of fork members 3a, 3b, 3 ... are set in the vertical direction or the oblique direction, and the plurality of fork members 3a, 3b, 3 ... are set in a traveling direction or a retreating direction of a civil machine such as a power shovel. By moving, leveling work to flatten or substantially flatten the place dug up using the bucket with a fork part (the surface of the river bed on which the rock is located), or the back member 6 of the bucket 1 with the fork member The bucket with a fork portion is used by using the outer surface S6a curved in the direction of the opening h2 of the bucket body 2 at a position in the middle between the upper horizontal frame member 4 and the bottom plate member 5. There dig location or terrain work to (rock on the surface of the river bed so as to be located) flat or generally flat.

  In the bucket 1 with a fork portion, the base portion of each of the pair of fork members 3a, 3b located on the outermost side among the plurality of fork members 3a, 3b, 3,. And the connection to each of the pair of side plates 7 and 8 is supported.

  Accordingly, when the base portions of the pair of fork members 3a, 3b located on the outermost side among the plurality of fork members 3a, 3b, 3,... Are supported only by connection to the bottom plate member 5. Compared to the connection to the bottom plate member 5, the mechanical strength of each of the pair of fork members 3a, 3b located on the outermost side among the plurality of fork members 3a, 3b, 3. Furthermore, it can be enlarged by the amount connected to each of the pair of side plates 7 and 8.

  As a result, in this bucket 1 with a fork part, from the front-end | tip part of each of a pair of fork members 3a, 3b located among the several fork members 3a, 3b, 3 ... to the root part. The length of each of the fork members 3a, 3b,..., Of the plurality of fork members 3a, 3b,. When compared, the plurality of fork members 3a, 3b, 3,..., The outermost pair of fork members 3a, 3b are each longer than the length from the tip portion to the root portion of each of the fork members 3a, 3b. Even if there is, for example, this fork part bucket 1 is used, and among each of a plurality of fork members 3a, 3b, 3,. When you push it up, , A force is applied to each of the pair of fork members 3a, 3b located on the outermost side among the plurality of fork members 3a, 3b, 3,. Even if a force (moment force) is applied to the roots of each of the pair of fork members 3a, 3b located on the outermost side, one of the plurality of fork members 3a, 3b, 3,. The positional relationship between the pair of fork members 3a and 3b located on the outermost side is not easily deformed.

  Further, the bucket 1 with a fork portion is composed of a plurality of fork members 3a, 3b, 3... And a fork member 3. Are connected to the bottom plate member 5 and from the middle position of the upper horizontal frame member portion 4 toward the bottom plate member 5, and from the middle position of the upper horizontal frame member portion 4 to the inner surface of the back member 6 ( Back surface) Since it is provided so as to be connected to S6b and is supported in cooperation with the connection to each of the support members 9..., The most among the fork members 3a, 3b, 3. Compared to the case where each of the fork members 3... Positioned between the pair of fork members 3 a, 3 b located outside is supported by connection only to the bottom plate member 5, a plurality of fork members 3 a, 3 b, 3. ..A pair of forks located on the outermost side In addition to the connection to the bottom plate member 5, the mechanical strength of the base portion of the fork members 3 ... positioned between the materials 3a, 3b is added to the inside of the plurality of fork members 3a, 3b, 3 ... The fork members 3a, 3b positioned between the outermost pair of fork members 3a, 3b can be enlarged.

  As a result, in this bucket 1 with a fork part, among the multiple fork members 3a, 3b, 3 ..., the fork members 3a, 3b positioned between the pair of fork members 3a, 3b located on the outermost side. Of the fork members 3a, 3b located between the pair of fork members 3a, 3b located on the outermost side among the plurality of fork members 3a, 3b, 3,. .. A pair of fork members 3a located on the outermost side among the plurality of fork members 3a, 3b, 3... Compared with the base portion connected only to the bottom plate member 5 Even if the fork members 3... Positioned between 3b are made longer than the length from the tip portion to the root portion of the fork members 3,. Of members 3a, 3b, 3 ... When the fork members 3... Positioned between the pair of fork members 3 a, 3 b located on the outermost side are deeply pushed into the riverbed, a plurality of fork members 3 a, 3 b, 3. ..A force is applied to each of the fork members 3a located between the pair of fork members 3a, 3b located on the outermost side, and the inside of the plurality of fork members 3a, 3b, 3 ... Even if a force (moment force) is applied to the base of each of the fork members 3... Located between the pair of fork members 3 a and 3 b located on the outermost side, a plurality of fork members 3 a, 3 b, 3... Among the pair of fork members 3 a and 3 b located on the outermost side among the fork members 3.

  That is, in this bucket 1 with a fork part, even if it is a case where the length from each front-end | tip part to the root part of multiple fork members 3a, 3b, 3 ... is lengthened, for example, with this fork part When the bucket 1 is used and each of the plurality of fork members 3a, 3b, 3 ... is deeply pushed into the riverbed, the fork members 3a, 3b, 3 ... Even if force is applied, the positional relationship between the plurality of fork members 3a, 3b, 3.

  As a result, in this bucket 1 with a fork part, since the length from each front-end | tip part to a root part of several fork members 3a, 3b, 3 ... can be lengthened, in that way several fork members 3a By increasing the length from each of the tip portions e3ab, e3bb, e3b... To each of the root portions e3aa, e3ba, e3a. Each of the fork members 3a, 3b, 3... Is deeply pushed into the riverbed, so that rocks etc. deep in the riverbed are also scooped up, and the riverbed is dug up so that the rock is located on the earth and sand. Can be easily performed.

  That is, if this bucket with fork 1 is used, for example, the river bed is dug up deeply, and the rocks at the shallow river bed as well as the rocks at the deep river bed are positioned (arranged) on the earth and sand. ) To provide such aquatic animals with hiding places (shades of rocks and rocks) of aquatic animals such as freshwater fish, frogs, crayfish and aquatic insects that inhabit rivers. it can.

  As a result, aquatic animals such as freshwater fish, frogs, crayfish and aquatic insects that inhabit rivers can be hidden behind stones and rocks, so they are preyed by egrets, great egrets, river eagles and other birds. As the number of such aquatic animals decreases, the number of fish inhabiting the river increases.

  Moreover, in this bucket 1 with a fork part, since the whole shape containing several fork members 3a, 3b, 3 ... and the bucket main-body part 2 has a bucket shape, several fork members 3a, 3b 3 and the bucket main body 2 can rock up rocks and the like.

  Moreover, in this bucket 1 with a fork part, each shape of the supporting member 9 ... is made into the same magnitude | size and the same shape as each of a pair of side plates 7 and 8, or substantially the same magnitude | size and substantially the same. Since each of the plurality of fork members 3a, 3b, 3 ... is made of the same material, the same size, and the same mechanical strength, the plurality of fork members 3a, 3b, 3 has the same or substantially the same mechanical strength with respect to the bucket body 2, for example, the bucket 1 with the fork is used, and a plurality of fork members 3 a, 3 b, 3. Even when force is applied to each of the plurality of fork members by rocks or the like when deeply thrusting into the river bed, the fork members having the plurality of fork members 3a, 3b, 3. Easier to deform than Phenomenon is unlikely to occur, such as.

  Moreover, in this bucket 1 with a fork member, when each of several fork members 3a, 3b, 3 ... is each planar view of several fork members 3a, 3b, 3 ... (FIG. 2). ), The center lines Lc3a, Lc3b, Lc3,... Of the plurality of fork members 3a, 3b, 3. .. or, generally, along the center lines Lc3a, Lc3b, Lc3..., For example, by using this bucket 1 with a fork portion, a plurality of fork members 3a, 3b,. Even when a force is applied to each of the plurality of fork members 3a, 3b, 3 ... by rocks or the like when the pierced deeply into the river bed, the plurality of fork members 3a, 3b, 3 ... The fork member with Want, the phenomenon is less likely to occur, such as.

  Further, when the rear member 6 is viewed from the side, the fork portion-equipped bucket 1 is configured such that the outer surface S6a of the rear member 6 is located at a position midway between the upper horizontal frame member 4 and the bottom plate member 5. Since the outer surface S6a of the back member 6 is used, for example, the surface of the ground or a place dug up using the bucket 1 with a fork portion is flattened or substantially flattened using the outer surface S6a of the back member 6. It is possible to easily perform leveling work such as

  That is, by using this bucket 1 with a fork, after attaching the bucket 1 with a fork to a civil machine such as a power shovel, for example, using a civil machine such as a power shovel to which the bucket 1 with fork is attached, Since the work where rocks are located on the earth and sand and the leveling work at the place where such river bed excavation work can be performed, for example, the conventional skeleton bucket 101 or the conventional excavation can be applied to a civil engineering machine such as a power shovel. Fork excavator 201 for excavation, dig up the riverbed, work on the rocks on the earth and sand, and then, from a civil engineering machine such as a power shovel, the conventional skeleton bucket 101 or the conventional excavator for excavator 201 for excavation After that, place it on a civil engineering machine such as an excavator. To install such a work, or evacuate a civil engineering machine such as a power shovel to which a conventional skeleton bucket 101 or a conventional excavator fork excavator 201 is attached from the work site, There is no need to perform the troublesome work of sending a civil machine such as a bulldozer or a power shovel equipped with a bucket for leveling to the work site and performing leveling work.

  Moreover, in this bucket 1 with a fork part, since the inner surface (back surface) S6b on the opposite side to the outer surface S6a of the back member 6 is supported by the pair of side plates 7, 8 and the support members 9 ... The mechanical strength of the back member 6 is excellent.

  For this reason, using the outer surface S6a of the back member 6, for example, when performing leveling work such as flattening or almost flattening the surface of the ground or a place dug up using the bucket 1 with a fork portion Such a situation that the shape of the back member 6 is deformed hardly occurs.

  Further, the bucket with fork portion 1 has the front ends of the plurality of fork members 3a, 3b, 3 ... as the lower surfaces S3ab, S3bb of the plurality of fork members 3a, 3b, 3 ..., respectively. , S3b... From each of the end portions e3ab, e3bb, e3b... Of each of the upper surfaces S3aa, S3ba, S3a. When, for example, a plurality of fork members 3a, 3b, 3,... Since the fork members 3a, 3b, 3 ... are positioned on the upper surface of the book, the rocks and the like can be scooped up in the plurality of fork members 3a, 3b, 3 ... and the bucket body 2 .

  The fork part-equipped bucket 1 described in the best mode for carrying out the invention is used for explaining the fork part-equipped bucket according to the present invention. The attached bucket is not limited to a bucket with a fork part having four fork members 3a, 3b, 3, and 3.

  Since the bucket with a fork part according to the present invention can dig up earth and sand deeply, the industrial applicability is high.

It is a perspective view showing roughly an example of a bucket with a fork member concerning the present invention. It is the schematic top view which looked at the bucket with a fork member shown in FIG. 1 from the upper direction downward. It is a schematic front view of the bucket with a fork member shown in FIG. It is a schematic bottom view of the bucket with a fork member shown in FIG. It is a schematic rear view of the bucket with a fork member shown in FIG. It is a schematic right view of the bucket with a fork member shown in FIG. It is a schematic left view of the bucket with a fork member shown in FIG. It is a perspective view which shows roughly an example of the conventional skeleton bucket. FIG. 9 is a schematic cross-sectional view of the conventional skeleton bucket shown in FIG. 8 taken along line IX-IX in FIG. 8. It is a perspective view which shows roughly an example of the conventional excavator fork excavator. It is a schematic side view of the conventional excavating fork excavator shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bucket with fork member 2 Bucket body part 3a, 3b, 3 Fork member 4 Upper horizontal frame member e4a One end part side of upper horizontal frame member e4b Other end part side of upper horizontal frame member 5 Bottom plate member e5a One end part side of bottom plate member e5b The other end side of the bottom plate member 6 Back member e6a One end portion side of the back member e6b The other end portion side of the back member 7, 8 Side plate 9 Support member e9a Lower end portion of the support member 10 Recessed portion formed on the bottom plate member 11 Comb Teeth 12 Sti h2 Opening portion of bucket main body h3a Slit portion (cut) provided on upper surface of fork member 3a
h3b Slit portion (cut) provided on the top surface of the fork member 3b
h3 Slit portion (cut) provided on the top surface of the fork member 3
h12 Pin hole provided in the stay Lc3a Center line of the fork member 3a Lc3b Center line of the fork member 3b Lc3 Center line of the fork member 3 S3a Upper surface of the fork member 3 S3aa Upper surface of the fork member 3a S3ba Upper surface of the fork member 3b S3b Fork Lower surface of member 3 S3ab Lower surface of fork member 3a S3bb Lower surface of fork member 3b S6a Outer surface of back member S6b Inner surface (back surface) of back member

Claims (5)

An upper horizontal frame member member; a bottom plate member; a back member provided between the upper horizontal frame member and the bottom plate member; one end side of the upper horizontal frame member; one end side of the bottom plate member; A pair of side plates provided on each of one end side of the back member, the other end side of the upper horizontal frame member, the other end side of the bottom plate member, and the other end side of the back member; The bucket body,
A plurality of fork members provided to protrude from the bottom plate member of the bucket body,
Each of the pair of fork members located on the outermost side among the plurality of fork members is supported by each of the pair of side plates, and
Among the plurality of fork members, a fork member positioned between the pair of fork members positioned on the outermost side is positioned in the direction of the bottom plate member from a position in the middle of the upper horizontal frame member portion. A bucket with a fork member, which is supported by a support member provided so as to be connected to the inner surface of the back member from a position in the middle of the member portion. The bucket with a fork member according to claim 1, wherein the support member has the same shape or substantially the same shape as each of the pair of side plates. Each of the pair of fork members positioned on the outermost side of the plurality of fork members is a plan view of each of the pair of fork members positioned on the outermost side of the plurality of fork members. In this case, among the plurality of fork members, each of the pair of fork members located on the outermost side is supported by the lower end of each of the pair of side plates along the center line or generally along the center line, and,
Among the plurality of fork members, a fork member positioned between the pair of fork members positioned on the outermost side is a pair of fork members positioned on the outermost side of the plurality of fork members. When the fork member located between them is viewed in plan, among the plurality of fork members, along the center line of the fork member located between the pair of fork members located on the outermost side or substantially along the center line, The bucket with a fork member according to claim 1 or 2, which is supported by a lower end portion of the support member. When the back member is viewed from the side, the outer surface of the back member is curved toward the opening of the bucket main body at a position midway between the upper horizontal frame member and the bottom plate member. Item 4. A bucket with a fork member according to any one of Items 1 to 3. The front ends of each of the plurality of fork members are inclined from a predetermined position on the lower surface of each of the plurality of fork members toward an end of each upper surface of the plurality of fork members. Item 5. A bucket with a fork member according to any one of Items 1 to 4.