JP2018113882A - Long object inclining tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a long object inclining tool that can be inexpensively manufactured due to a simple configuration and can be easily attached to the tip of a crane, and also can safely support or incline a long object of an inclined tree or the like.SOLUTION: A long object inclining tool 1 according to the present invention is a long object inclining tool 1 that supports and inclines an inclined long object L which is installed to a boom 101 of a crane 100, and has: a narrow part 2 which approaches right/left side surfaces 102a of a tip part 102 of the boom 101; an engaging part 3 which is formed on the narrow part 2 and makes the long object inclining tool 1 detachable to the tip part 102 of the boom 101; and immovable guide parts 4 which are an approximately U-shaped in plan view and opened/expanded in an extending direction x of the boom 101 in a protruded manner.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a long object tilting tool that can be easily attached to the tip of a crane and can support or tilt a long object such as an inclined tree.

  Conventionally, long objects such as trees and telephone poles standing on the side of the road have been tilted or tilted during disasters such as typhoons, heavy rains, earthquakes, etc., impeding road traffic, and trees touching electric wires Therefore, it has problems such as disconnection and power failure.

  Removal of completely tilted trees and telephone poles is relatively easy and restoration work can be carried out promptly. However, for tilted trees, etc. Secure with a rope etc. to prevent the occurrence of secondary damage, or make a cut on the side where you want to incline the lower part of the tree, etc., while energizing in the direction to incline with the rope etc. fixed to the upper part of the tree It was necessary to work such as tilting.

  Thus, although it is difficult to accurately predict the tilting time of a tilted tree or the like, although it may tilt with time, it is necessary to tilt it safely while supporting and fixing it as soon as possible.

  In order to improve such a problem, for example, a cutting work machine such as a standing tree is disclosed in Patent Document 1 as a technique using a dedicated construction machine. According to the present technology, a cutting work machine such as a standing tree is an application of a backhoe mechanism having a soil discharge plate on the lower edge, and has a gripper as an attachment that is movably attached to the tip of the arm, A cutting device is provided in the plate portion.

JP-A-8-228615

  Certainly, according to the technique described in Patent Document 1, the lower part can be cut while holding the upper part of the inclined standing tree with the gripping tool, and it is possible to quickly move to the desired place while holding the cut standing tree. It is excellent in that it can be done. However, cutting work machines such as standing trees are disadvantageous in terms of cost because they are dedicated construction machines. For example, even if a gripping tool and cutting device are attached to an existing backhoe, it is also disadvantageous in terms of cost, and Since both the tool and the cutting device are movable attachments, the installation work is complicated due to the connection work of the hydraulic system and the electrical system.

  In addition, workers who operate cutting machines such as standing trees require a certain proficiency period before they can safely carry out a number of important operations such as gripping and cutting operations of standing trees. Person is limited.

  In addition, when a standing tree is cut, the center of gravity changes instantaneously depending on the weight and length of the standing tree held by the gripping tool. ing.

  Moreover, when a cutting work machine such as a standing tree is about to fall down, it is not possible to move the large holding tool, which is a heavy object, to the open state as much as possible even if it tries to open the standing tree by opening and closing the holding tool. It is very difficult to avoid the fall of cutting machines such as standing trees.

  The present invention has been made in view of the above circumstances, and can be manufactured at a low cost with a simple configuration and can be easily mounted on the tip of a crane, and can support and tilt long objects such as sloping trees. An object of the present invention is to provide a long object tilting tool which can be safely performed.

  In order to achieve the above object, the present invention provides the following techniques.

  The invention according to claim 1 is a long object tilting tool that supports and tilts a long object that is mounted on a crane boom and tilts, and a sandwiching part adjacent to the left and right side surfaces of the tip of the boom; An engaging portion formed on the sandwiching portion to allow a long object tilting tool to be detachably attached to the tip end portion of the boom, and a non-movable guide portion that is substantially U-shaped in a plan view and expands in a projecting direction of the boom. And a long object tilting tool characterized by comprising:

  According to a second aspect of the present invention, there is provided a pressure receiving portion close to the front surface of the tip portion, and the sandwiching portion and the guide portion are connected via the pressure receiving portion. The long object tilting tool described in is to be provided.

  In the invention which concerns on Claim 3, the said guide part is arrange | positioned in the range of the effective cross section of the said boom, It shall be a long object tilting tool of Claim 2 characterized by the above-mentioned.

  In the invention which concerns on Claim 4, the said guide part was comprised by one main guide part and one or more sub guide parts, and at least the said main guide part was arrange | positioned in the range of the effective cross section of the said boom. The long object tilting tool according to claim 2 is provided.

  In the invention which concerns on Claim 5, it has a guide reinforcement part which reinforces joining with the said pressure receiving part and the said guide part, and the said guide reinforcement part is connected with the said pressure receiving part, and the said guide part in a perpendicular direction. The long object tilting tool according to any one of claims 2 to 4, wherein the long object tilting tool is connected and formed to expand in the expanding direction of the guide portion.

  According to the first aspect of the present invention, there is a long object tilting tool that supports and tilts a long object that is attached to a crane boom and tilts, and a clamping part that is close to the left and right side surfaces of the tip of the boom; An engaging portion formed on the sandwiching portion to allow the long object tilting tool to be attached to and detached from the tip of the boom, and a non-movable guide portion that is substantially U-shaped in a plan view and expands in a projecting direction of the boom. By having it, the long object tilting tool can be easily mounted on the tip of the boom, so that it is possible to easily switch to tilting work such as trees as much as possible without load even if it is usually used as a crane.

  In addition, since the guide unit only supports the tree etc. from the side, it is not movable and is not movable, the crane operation for support and tilting is very easy, and when the tree etc. tilts, the tree The crane will not fall with the other.

  In addition, since it can be configured more simply than having no movable part, it is inexpensive and advantageous in terms of cost.

  According to invention of Claim 2, it has a press receiving part which adjoins the front of a front-end | tip part, and since the clamping part and the guide part were connected via the press receiving part, the extension direction of a boom is made into the front. The pressure receiving portion close to the tip of the boom that receives the load is the load in the compression direction although it receives the most load when the tree or the like is tilted. It is possible to simply configure a long object tilting tool.

  According to the third aspect of the present invention, since the guide portion is disposed within the range of the effective cross section of the boom, it is possible to directly transmit the urging force that the guide portion applies to the trees and the like due to the extension of the boom. Can often support and tilt trees.

  In addition, since an unnecessary bending moment is hardly generated at the tip of the boom when a tree or the like is tilted, the load on the long object tilting tool is reduced and the life can be extended.

  According to the invention of claim 4, the guide part is composed of one main guide part and one or more sub-guide parts, and at least the main guide part is disposed within the range of the effective cross section of the boom. Since the urging force given to the tree or the like by the main guide portion can be directly transmitted by the extension of the boom, the tree or the like can be supported or tilted efficiently.

  In addition, since an unnecessary bending moment is hardly generated at the tip of the boom when a tree or the like is tilted, the load on the long object tilting tool is reduced and the life can be extended.

  Furthermore, by having one or more sub-guide sections in addition to the main guide section, the stability when supporting or tilting trees or the like is improved. In particular, when trees cannot be supported from the front in the inclined direction, it is easy for the trees or the like to be detached from the guide portion with only one guide portion when tilting. Play.

  According to the fifth aspect of the present invention, the guide reinforcing portion has a guide reinforcing portion that reinforces the bonding between the press receiving portion and the guide portion, the guide reinforcing portion is connected to the press receiving portion and is connected to the guide portion in the vertical direction, In addition, since the guide portion is formed so as to expand in the expanding direction, the guide portion having a size that extends beyond the width direction of the tip of the boom can be formed while maintaining the strength.

  In addition, the guide reinforcing portions can improve the strength of the both ends of the expanded guide portion that is thinner and lower in strength than the other portions.

(A) is a perspective view of a long object tilting tool and a boom tip part of a crane, and (b) is a perspective view showing a state in which a long object tilting tool is mounted on a boom tip part of a crane. It is explanatory drawing which shows a mode that the tree inclined by the truck crane equipped with the long thing inclination tool is supported. It is explanatory drawing which shows a mode that the tree which inclined by the truck crane equipped with the long thing inclination tool is inclined. (A) is a front view of a long object tilting tool, (b) is a rear view, and (c) is a right side view shown together with a boom tip. (A) is a right side view showing a long object tilting tool with a different position of the guide part together with the boom tip part, and (b) is a right side view showing a long object tilting tool with a different position of the guide part together with the boom tip part. FIG. (A) is a perspective view of the elongate object tilting tool in which the position and size of the guide part are different, and (b) is a right side view showing the elongate object tilting tool together with the boom tip part in (a). (A) is a perspective view of the long thing tilting tool from which the position of a guide part differs in size and number, (b) is the right view which showed the long thing tilting tool with the boom front-end | tip part about (a).

  The gist of a long object tilting tool according to an embodiment of the present invention is a long object tilting tool that supports and tilts a long object that is mounted on a crane boom and is tilted on the left and right side surfaces of the tip of the boom. An adjacent sandwiching portion, an engagement portion formed on the sandwiching portion that allows a long object tilting tool to be attached to and detached from the tip end portion of the boom, and a non-movable substantially U-shaped in a plan view that expands in a projecting direction of the boom And a guide part. That is, the provision of a long object tilting tool that can be manufactured at a low cost with a simple configuration, can be easily mounted on the tip of a crane, and can safely support and tilt long objects such as inclined trees. It is something to try.

  Here, the crane means a general term for machinery and equipment that is intended to hang a load by power and move it horizontally, such as a truck crane with a loading platform, a dedicated truck crane, or a crawler crane. The presence or absence of the moving means of the mechanical device itself does not matter. In the drawing, a general truck crane with a loading platform is used for explanation.

  Further, in the present invention, the presence or absence of a crane component for suspending a load such as a wire rope or hook is omitted, and the description thereof is omitted in the drawing for convenience.

  In addition, the long object targeted by the long object tilting tool according to the present invention means all inclined natural objects and artificial objects such as trees and telephone poles.

  Hereinafter, embodiments of a long object tilting tool according to the present invention will be described with reference to the drawings. In this description, the same or symmetrical structures and parts are assigned the same reference numerals in principle, and only one of the left and right is described, and the description of the other is omitted as appropriate.

  As shown in FIG. 1, a long object tilting tool 1 according to an embodiment of the present invention is a long object tilting tool 1 that supports and tilts a long object L that is attached to a boom 101 of a crane 100 and tilts. A sandwiching portion 2 adjacent to the left and right side surfaces 102 a of the tip portion 102 of the boom 101, an engagement portion 3 formed on the sandwiching portion 2 to make the long object tilting tool 1 detachable from the tip portion 102 of the boom 101, And a non-movable guide portion 4 that is substantially U-shaped in a plan view and expands so as to protrude in the extension direction x of the boom 101.

  Moreover, it has the press receiving part 5 which adjoins the front surface 102b of the front-end | tip part 102, and while the clamping part 2 and the guide part 4 are connected via the press receiving part 5, the press receiving part 5 and the guide part 4 are connected. The guide reinforcing portion 6 that strengthens the joining is connected to the press receiving portion 5 and connected to the guide portion 4 in the vertical direction. Forming.

  The long object tilting tool 1 configured as described above can support and tilt the long object L which is inclined by using it as follows, for example.

  First, as shown in FIG. 2, the long object tilting tool 1 is attached to the tip 102 of the boom 101 so that it can be supported from the front as much as possible while facing the inclination direction y of the tree L1 inclined to the road R side. The vehicle is stabilized by the outrigger 110 while the truck crane 100 is parked adjacent to the tree L1, and the boom 101 is extended to support the tree L1.

  The inclined tree L1 supported by the boom 101 can avoid a risk of contacting the electric wire C or cutting the electric wire C due to the further inclination, and thus can respond quickly as an emergency treatment.

  In addition, since the urgency increases especially when the inclined long object L is the telephone pole L2, the rapid support by the boom 101 which mounted | wore with the long object inclination tool 1 is required.

  Further, when performing a permanent treatment such that the inclined tree L1 is tilted to the site A outside the road R, as shown in FIG. 3, the lower side of the tree L1 is tilted toward the receiving direction. An incision K1 of about 30 ° to 45 ° is provided, and a substantially horizontal incision K2 is formed on the opposite side (tracing port) of the incision K1. Thereafter, by extending (x) the boom 101 supporting the tree L1, the tree L1 can be tilted in the predetermined tilt direction z.

  In addition, when tilting more carefully, a rope or the like is fixed to the upper part of the tree L1, and the tree L1 is tilted in the intended exact direction by operating the rope from the ground according to the extension operation of the boom 101. Can do.

  Hereinafter, the configuration of the long object tilting tool 1 according to the present embodiment will be described in detail.

  The boom 101 of the crane 100 is formed in a rectangular box shape and is composed of a plurality of booms 101 having different sizes. The boom 101 is the largest at the fulcrum side, and the booms 101 smaller than the boom 101 are overlapped so as to freely advance and retract. Yes.

  Further, as shown in FIG. 1A, the tip of the earliest boom 101 has a rectangular box-like tip portion 102 projecting downward substantially at right angles to the boom 101, and a wire is guided inside. It has a pulley to do it.

  Such a distal end portion 102 is provided with an engagement structure for mounting the long object tilting tool 1. Specifically, in the upper part of the left and right side surfaces 102 a of the distal end portion 102, the extension direction of the boom 101 is provided. A short columnar engaging pin 103 with its axial direction directed to the side orthogonal to x is projected, and a bolt insertion reference hole 104 is drilled below the left and right side surfaces 102a of the tip 102.

  The long object tilting tool 1 includes a sandwiching part 2 adjacent to the left and right side surfaces 102 a of the tip part 102 of the boom 101, and the long object tilting tool 1 detachably attached to the tip part 102 of the boom 101. The engaging portion 3, the upper piece 7 straddling the upper end of the opposing sandwiching portion 2, the press receiving portion 5 that is close to the front surface 102b of the tip portion 102 and connects the sandwiching portion 2 and the guide portion 4, and the boom 101 The non-movable guide part 4 having a substantially U-shape in plan view that protrudes and expands in the extending direction x, and the guide reinforcing part 6 that reinforces the bonding between the press receiving part 5 and the guide part 4.

  The sandwiching portion 2 is made of a plate-shaped steel material having a substantially right triangle shape when viewed from the side, and a sharp corner portion 11 is formed on the lower side of the press receiving portion 5 by bringing the right corner portion 10 into contact with the upper side of the press receiving portion 5. It arrange | positions so that it may contact | abut. That is, the hypotenuse 12 of the substantially right triangle is located outside the outer shape of the long object tilting tool 1.

  The engaging portion 3 formed in the sandwiching portion 2 includes an engaging groove 20 and a bolt insertion hole 21. The engaging groove 20 extends horizontally from the oblique side 12 on the upper side of the sandwiching portion 2. The guide portion 20a and the fixed portion 20b bent upward from the end portion of the guide portion 20a are formed in a substantially L shape in side view, and the groove width of the engagement groove 20 is the left and right side surfaces of the tip portion 102 of the boom 101. The engaging pin 103 is formed to be slightly wider than the outer diameter.

  Therefore, as shown in FIGS. 1A and 1B, when the long object tilting tool 1 is mounted on the tip portion 102, the guide portion 20a is inserted through the engagement pin 103, and the engagement pin 103 is further fixed. The long object tilting tool 1 can be temporarily fixed to the distal end portion 102 by being moved to the portion 20b.

  The bolt insertion hole 21 is formed on the lower side of the sandwiching portion 2, and the bolt insertion reference hole 104 formed on the left and right side surfaces 102 a of the distal end portion 102 when the long object tilting tool 1 is attached to the distal end portion 102. If the long bolt 60 as shown in FIG. 1 (b) is inserted into the holes 21 and 104 and fastened by the nut 70, the long object tilting tool 1 is attached to the tip end 102 of the boom 101. Can be fixed easily.

  In this embodiment, in order to ensure the minimum strength, the shape of the sandwiching portion 2 is a substantially right triangle when viewed from the side, but the shape is not limited to this embodiment and may be formed in any shape.

  Further, in the present embodiment, the engaging portion 3 is constituted by the engaging groove 20 and the bolt insertion hole 21, but the structure in which the long object tilting tool 1 can be easily mounted and fixed to the tip portion 102 of the boom 101. As long as it is not limited to this embodiment, any structure may be adopted.

  The upper piece 7 is made of a plate-shaped steel material having a substantially rectangular shape in plan view, and straddles the upper end of the opposing sandwiching portion 2 and is also joined to the upper end of the press receiving portion 5. The upper piece 7 not only assists the fixing strength of the long object tilting tool 1 to the front end part 102 close to the upper surface 102c of the front end part 102 when the long object tilting tool 1 is attached to the front end part 102. The joining of the sandwiching portion 2 and the press receiving portion 5 is also effective in reinforcing the strength of the entire long object tilting tool 1.

  As shown in FIGS. 4 (a) and 4 (b), the pressure receiving portion 5 is made of a plate-shaped steel material in the shape of a letter L, and is mounted in the vicinity of the front surface 102b of the tip portion 102 of the boom 101. It becomes a site | part which receives the load urged | biased by the elongate object inclination tool 1 most strongly at the time of support or inclination.

  The press receiving portion 5 is connected to the sandwiching portion 2 and the upper piece 7 at the left and right edges and the upper edge of the rear surface 5a, and is connected to the guide portion 4 in the horizontal direction of the front surface 5b and to the guide reinforcement portion 6 in the vertical direction. doing. That is, the constituent parts of the long object tilting tool 1 are arranged around the press receiving portion 5.

  In the present embodiment, the shape of the press receiving portion 5 is a square shape for weight reduction, but the shape is not limited to the present embodiment and may be formed in any shape.

  As shown in FIG. 1B, the guide portion 4 is made of a plate-shaped steel material, and is formed in a substantially U shape in plan view with a base portion 4a and two expanded claw portions 4b. The base portion 4a is connected to the press receiving portion 5 in the horizontal direction and is connected to the guide reinforcing portion 6 in the vertical direction. That is, the guide part 4 is a non-movable part that does not have a movable mechanism that positively clamps the long object L by itself.

  Therefore, the diameter of the long object L that is an object to be supported or tilted needs to be within the open width w between the claw portions 4b. The long object tilting tool 1 can cope with many types of long objects L having different diameters.

  Further, the inner edge portion of the guide portion 4 is bent in a substantially semicircular shape so that the long object L is allowed to move slightly when the long object L is supported between the claw portions 4b. When the claw portion 4b is applied to a part of the side surface of the long object L during the boom operation, the boom operation is facilitated so that the long object L can be accommodated between the claw portions 4b.

  Further, the number of the guide portions 4 may be 1 or 2 or more. When the number of the guide portions 4 is 1, the guide portions 4 are always arranged within the range of the effective cross section of the boom 101. Even in the case of two or more, as shown in FIG. 4C, one guide portion is always disposed within the effective cross section t of the boom 101.

  That is, when there are a plurality of guide portions 4, the main guide portion 40 is composed of one main guide portion 40 and one or more sub-guide portions 50, and at least the main guide portion 40 is disposed within the effective cross section t of the boom 101. Will be.

  Thus, by arranging the guide portion 4 within the range t of the effective cross section of the boom 101, the boom 101 that extends can support the long object L, and the pressing force for tilting can be directly transmitted to the long object L. Further, since an unnecessary bending moment is not generated in the distal end portion 102, the load on the long object tilting tool 1 and the crane 100 can be reduced.

  Here, a structural example in the case where the position of the main guide portion 40 is disposed within the range t of the effective cross section of the boom 101 will be described.

  For example, in the long object tilting tool 1 shown in FIG. 4C, the sub guide part 50 is arranged at the lower end of the long object tilting tool 1 with the same size and shape as the main guide part 40. By configuring in this way, particularly when the long object L is long and the place to be supported is upward (see FIG. 2), the auxiliary guide 50 is long for the long object L inclined to the boom 101 side. The main guide 40 can prevent the long object L from being detached from the long object tilting tool 1 while the lead L is easy to catch and support the long object L. When tilted in the tilting direction z (see FIG. 3), the main guide portion 40 and the sub-guide portion 50 lead the tilting of the long object L while the supporting portion slides to the lower side of the long object L. be able to. In particular, when the long object tilting tool 1 cannot support the slanted long object L from the front, when the long object L is tilted by extending the boom 101, any of the guide parts 40, 50 The long object L is easily detached from the claw portion 4b, which is effective in that the separation can be prevented by any of the main / sub guide portions 40 and 50.

  If the auxiliary guide portion 50 is disposed on the lower side of the long object tilting tool 1, a load such as a bending moment tends to occur on the lower side of the tip portion 102 that is out of the range t of the effective cross section of the boom 101. Since the rear surface 5a of the pressure receiving portion 5 is in contact with the front surface 102b of the tip end portion 102, the load can be greatly reduced by the upper piece 7 and the sandwiching portion 2, so that the long object L can be easily captured. Plays a very important role even when the guide portion 4 is not disposed within the range t of the effective cross section of the boom 101. In the present invention, the position of the main guide portion 40 is effective for the boom 101. It goes without saying that structures that are not within the range t of the cross section are also included.

  Further, in the long object tilting tool 1a shown in FIG. 5 (a), the auxiliary guide portion 50 is arranged slightly below the effective cross section t of the boom 101 as the size and shape of the main guide portion 40. Has been established. By configuring in this way, the sub guide part 50 can be led and supported by the main guide part 40 while assisting the long object L inclined to the boom 101 side. Even when the object L is tilted in the tilt direction z, the main guide unit 40 and the sub-guide unit 50 can lead the long object L to tilt. In particular, when the long object tilting tool 1a cannot support the inclined long object L from the front, it is effective in that it can be prevented from being detached by either the main / sub-guide portions 40, 50, and -Since the distance between the sub-guide portions 40 and 50 is close, the pressing force can be efficiently transmitted to the long object L.

  Further, in the long object tilting tool 1 b shown in FIG. 5B, the sub guide part 50 is arranged within the effective cross section t of the boom 101 as the same size and shape as the main guide part 40. By configuring in this way, the extending boom 101 can support the long object L, and the pressing force for tilting can be directly transmitted to the long object L by the two main and sub guide portions 40, 50. Since an unnecessary bending moment is not generated in the portion 102, the load on the long object tilting tool 1b and the crane 100 can be further reduced. Further, the auxiliary guide unit 50 can lead and support the long object L inclined to the boom 101 side while the main guide unit 40 assists, and the extension of the boom 101 causes the long object L to tilt in the z direction z. Even when it is tilted, the long guide L can be tilted by the main guide portion 40 and the sub-guide portion 50. In particular, when the long object tilting tool 1b cannot support the inclined long object L from the front, it is effective in that it can be prevented from being detached by either the main / sub-guide portions 40, 50, and the main object -Since the distance between the sub-guide portions 40 and 50 is close, the pressing force can be transmitted to the long object L more efficiently.

  Further, in the long object tilting tool 1c shown in FIGS. 6 (a) and 6 (b), the sub guide part 50 is arranged at the lower end of the long object tilting tool 1c as a shape smaller than the main guide part 40. . The long object tilting tool 1 c having such a configuration is particularly effective when the outer diameter of the long object L is extremely small with respect to the open width w of the main guide portion 40. That is, the main guide unit 40 can easily support the long object L inclined toward the boom 101 side, and when the long object L is inclined in the inclination direction z due to the extension of the boom 101, The sub-guide unit 50 takes the lead until immediately before tilting, and then the main guide unit 40 takes the lead to tilt the long object L, and the detachment of the long object L from the claw part 4b of the sub-guide part 50 This is effective in that it can be assisted by the main guide portion 40.

  Further, in the long object tilting tool 1d shown in FIGS. 7A and 7B, two sub guide portions are provided, and the first sub guide portion 50a has the same size and shape as the main guide portion 40, and the boom 101 has the same size and shape. The second sub-guide portion 50b is disposed at the lower end portion of the long object tilting tool 1d as a shape smaller than the main guide portion 40. With this configuration, the extending boom 101 supports the long object L, and the pressing force for tilting can be directly transmitted to the long object L by the main guide portion 40 and the first sub guide portion 50a. In addition, since an unnecessary bending moment is not generated in the distal end portion 102, the load on the long object tilting tool 1d and the crane 100 can be further reduced. Further, the second sub guide portion 50b can be led and supported by the main guide portion 40 and the first sub guide portion 50a with respect to the long object L inclined to the boom 101 side. Thus, even when the long object L is tilted in the tilting direction z, the first sub guide part 50a and the second sub guide part 50b can take the lead while tilting the long object L while the main guide part 40 assists. In particular, when the long object tilting tool 1d cannot support the inclined long object L from the front, the claw part of the second sub guide part 50b is used when the boom 101 is extended to tilt the long object L. The long object L is easily detached from 4b, which is effective in that the separation can be surely prevented by the main guide portion 40 and the first sub guide portion 50a.

  The number, size, position, and the like of the guide unit 4 described in the present embodiment are merely examples, and are not limited to the present embodiment, and various modifications and changes are possible within the scope of the gist of the present invention. Needless to say.

  The guide reinforcing portion 6 is made of a plate-shaped steel material, is connected to the pressure receiving portion 5 and is connected to the guide portion 4 in the vertical direction, and is formed to expand in the expanding direction of the guide portion 4. The joint of the part 5 and the guide part 4 is strengthened.

  Specifically, as shown in FIGS. 1 (a) and 4 (a), the guide reinforcing portion 6 is connected to the left and right sides of the front surface 5b of the press receiving portion 5 and in the direction of the claw portion 4b of the guide portion 4. It spreads out and is connected to the base portion 4a of the guide portion 4.

  Further, the shape of the guide reinforcing portion 6 varies depending on the position of the guide portion 4. For example, as shown in FIGS. 1 and 4, the main guide portion 40 is disposed near the center of the effective cross section t of the boom 101. If the auxiliary guide portion 50 is disposed at the lower end of the long object tilting tool 1, the guide reinforcing portion 6 formed above the main guide portion 40 is located above the front surface 5b of the press receiving portion 5. The guide reinforcing portion 6 formed between the main guide portion 40 and the sub guide portion 50 is formed in a triangular shape from the left right side to the base portion 4a of the main guide portion 40. Is formed in a rectangular shape extending from the left and right sides to the base portion 4a of the main guide portion 40 and the sub guide portion 50.

  In the present embodiment, the middle portion of the rectangular guide reinforcing portion 6 is drilled (h) for weight reduction. However, the presence / absence of the drilling (h) and the shape of the guide reinforcing portion 6 itself are described. The present invention is not limited to the embodiment and may be formed in any shape.

  In this way, by forming the guide reinforcing portion 6 so as to expand in the expanding direction of the guide portion 4, not only the joint between the pressure receiving portion 5 and the guide portion 4 is strengthened, but also a thin claw portion whose strength decreases. The strength of 4b can be improved.

  As described above, the long object tilting tool 1 according to the present embodiment is configured. In this manner, the sandwiching portion 2 adjacent to the left and right side surfaces 102a of the tip portion 102 of the boom 101, and the engaging portion 3 that is formed in the sandwiching portion 2 and allows the long object tilting tool 1 to be detachably attached to the tip portion 102 of the boom 101. And the non-movable guide part 4 that is substantially U-shaped in plan view and expands so as to protrude in the extension direction x of the boom 101, so that the long object tilting tool 1 can be easily attached to the tip part 102 of the boom 101. Since it can be mounted, even if it is normally used as the crane 100, it can be easily switched to a tilting operation of the tree L1 or the like as much as possible without load.

  Further, since the guide unit 4 only supports the tree L1 and the like from the side and does not hold it and is not movable, the crane operation for supporting and tilting is very easy. The crane 100 does not fall with the tree L1 or the like when tilting.

  In addition, since it can be configured more simply than having no movable part, it is inexpensive and advantageous in terms of cost.

  In addition, since the press receiving portion 5 close to the front surface 102b of the tip end portion 102 is provided, and the sandwiching portion 2 and the guide portion 4 are connected via the press receiving portion 5, the extension direction x of the boom 101 is set to the front. The pressure receiving portion 5 close to the tip portion 102 of the boom 101 that receives the load is the load in the compression direction although it receives the most load when the tree L1 or the like is tilted. Since the part 2 and the guide part 4 can be connected, the long object tilting tool 1 can be configured simply.

  Further, since the guide unit 4 is disposed within the effective cross section t of the boom 101, the urging force that the guide unit 4 applies to the trees L1 and the like due to the extension of the boom 101 can be directly transmitted, so that the trees can be efficiently used. L1 etc. can be supported or tilted.

  In addition, since it is difficult for an unnecessary bending moment to be generated at the tip of the boom when the tree L1 or the like is tilted, the load on the long object tilting tool 1 is reduced and the life can be extended.

  Further, the guide unit 4 is composed of one main guide unit 40 and one or more sub-guide units 50, and at least the main guide unit 40 is disposed within the effective cross section t of the boom 101. Since the urging force given to the tree L1 or the like by the main guide portion 40 can be directly transmitted by the extension of the tree, the tree L1 or the like can be supported or tilted efficiently.

  In addition, since an unnecessary bending moment is hardly generated at the tip of the boom when a tree or the like is tilted, the load on the long object tilting tool 1 is reduced and the life can be extended.

  Moreover, the stability at the time of supporting or tilting the tree L1 etc. improves by having the 1 or more sub guide part 50 other than the main guide part 40. FIG. In particular, when the tree L1 or the like cannot be supported from the front in the tilt direction y, the tree L1 or the like can be easily detached from the guide unit 4 with only one guide unit 4 when tilted. It has a great effect on stability.

  Moreover, it has the guide reinforcement part 6 which reinforces joining with the press receiving part 5 and the guide part 4, and the guide reinforcement part 6 is connected with the guide part 4 in the perpendicular direction while connecting with the press receiving part 5, and, Since the guide portion 4 is formed so as to expand in the expanding direction, the guide portion 4 having such a size as to expand beyond the width direction of the tip portion 102 of the boom 101 can be formed while maintaining the strength. it can.

  In addition, the guide reinforcing portions 6 can improve the strength of the widened end portions (claw portions 4b) of the guide portion 4 which is thinner than other portions and has a reduced strength.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the specific embodiments, and various modifications and changes can be made within the scope of the gist of the present invention described in the claims. It can be changed.

L Long object t Within effective cross section x Extension direction 1 Long object tilting tool 2 Nipping part 3 Engaging part 4 Guide part 5 Press receiving part 6 Guide reinforcement part 40 Main guide part 50 Sub guide part 100 Crane 101 Boom 102 Front end portion 102a Left and right side surfaces 102b Front (front end portion)

Claims (5)

A long object tilting tool that supports and tilts a slanted long object mounted on a crane boom,
A sandwiching portion adjacent to the left and right side surfaces of the tip of the boom;
An engaging portion formed on the sandwiching portion and detachably attachable to the distal end portion of the boom;
A long object tilting tool comprising: a substantially U-shaped non-movable guide portion that projects in the boom extension direction and expands. Having a pressure receiving portion close to the front of the tip,
The long object tilting tool according to claim 1, wherein the pinching portion and the guide portion are connected via the press receiving portion.   The long object tilting tool according to claim 2, wherein the guide portion is disposed within a range of an effective cross section of the boom.   The said guide part is comprised with one main guide part and one or more sub-guide parts, and at least the said main guide part was arrange | positioned in the range of the effective cross section of the said boom, It is characterized by the above-mentioned. Long object tilting tool. A guide reinforcing portion for strengthening the bonding between the pressure receiving portion and the guide portion;
The said guide reinforcement part is connected with the said pressure receiving part, is connected with the said guide part in the orthogonal | vertical direction, and was further expanded and formed in the expansion direction of the said guide part. The long object tilting tool according to any one of the above.

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