JP5822751B2 - Rope guide device in hook storage device of crane truck - Google Patents

Description

  The present invention relates to a rope guide device in a hook storage device of a crane vehicle, and in particular, with the boom retracted posture, the bottom surface of the boom is close to the top surface of the cab of the vehicle. The present invention relates to a rope guide device used in a hook storage device of a crane vehicle that is guided to the rear of the cab through a gap with the hook and stores the hook on a carrier frame. The name of the present invention is “the rope guide device in the hook storage device of the crane vehicle”, but in the following description, the name of the present invention may be simply expressed as “the rope guide device”.

  FIG. 5 shows a conventional hook storage device that employs the above-described configuration for storing a hook in a crane vehicle. The crane vehicle shown in FIG. 5 is of a type called a truck crane provided with a cab 10 for traveling operation and a cab 6 for crane operation.

  The conventional crane vehicle shown in FIG. 5 is provided with a cab (for driving operation) 10 at the front portion of the carrier frame 11 of the vehicle 1 and a boom 7 on a swivel (not shown) mounted on the carrier frame 11. Is installed up and down freely. Although the telescopic boom is used for the boom 7, in the description of the present application, this telescopic boom is simply expressed as a boom. A crane cab 6 is mounted on a swivel.

  5, in the boom retracted position, the lower surface 7a of the boom 7 is close to the upper surface 10a of the cab 10 with the distal end portion 71 of the boom 7 protruding forward from the cab 10 of the vehicle 1. Will be surrendered.

  In the crane vehicle of FIG. 5, the hook 21 is stored as follows. That is, in the boom retracted state, the rope (wire rope) 20 hung on the hook 21 is guided from the lower sheave 72 of the boom tip 71 to the rear of the cab 10 through the gap between the cab upper surface 10a and the boom lower surface 7a. The hook 21 is locked (stored) to the hook locking portion 13 on the carrier frame 11.

  By the way, in the hook storage device shown in FIG. 5 (which stores the hook 21 on the carrier frame 11), the hook engaging portion 13 on the carrier frame 11 from the lower surface of the lower sheave 72 of the boom tip 71 in the boom storage posture. A straight line connecting the two hits the cab 10. In the hook storage device of FIG. 5, the rope guide 3A is provided at a substantially central position of the cab front-rear width on the boom lower surface 7a so that the rope 20 does not contact the cab upper surface 10a when the hook is stored. Separate rope guides 4A and 5A are provided on the side surface of the boom rest 17 and the front support 16 of the hoisting cylinder 15, respectively.

  The rope guide 3A positioned above the cab upper surface 10a in the boom retracted position employs a rotatable roller 32A as shown in FIG. And this rope guide 3A is attached to the boom lower surface 7a via the mounting base 31A in a laterally projecting posture with the roller 32A portion facing outward in the boom width direction. Both ends of the roller 32A in the length direction are provided with hooks so that the rope 20 placed on the roller 32A does not fall off carelessly. The rope guides 4A and 5A provided on the side surface of the boom rest 17 and the front support 16 of the hoisting cylinder 15 also employ rollers as shown in FIG.

  By the way, the rope guide 3A (roller 32A) provided on the boom lower surface 7a is located in the vicinity of the center of the front and rear width of the cab in the boom retracted state and is simply attached in a laterally projecting posture toward the outside. The guide installation position is so far that the rope 20 cannot be placed on the rope guide 3A (roller 32A) even if the worker M standing in the foremost position on the carrier frame 11 reaches his / her hand as shown in FIG. Are separated.

  As a known example in which the hook 21 is stored on the carrier frame 11 in the boom storage posture as described above, for example, there is one shown in Utility Model Registration No. 2755541 (Patent Document 1). The hook storage device of Patent Document 1 is configured such that a rope hooked on a hook in a boom storage posture can be placed on a guard provided on a side portion of a boom rest. In the hook storage device of this known example, the rope is placed on and supported on the guard in the hook storage state, and it is understood that the rope is in contact with the upper surface of the cab in this rope placement state. . And in order to support this rope in the state which does not contact a cab upper surface, it is desirable to support a rope in the approximate center position of the cab front-back width in a boom lower surface.

Utility Model Registration No. 2575541

  By the way, in the conventional rope guide device shown in FIG. 5, the rope guide 3A on the bottom surface 7a of the boom is spaced far from the foremost position (the position of the worker M) on the carrier frame 11 in the boom retracted position. In order to place the rope 20 hung on the hook 21 on the rope guide 3A on the lower surface 7a of the boom sometimes, the worker M climbs on the cab upper surface 10a via the carrier frame 11, and the rope 20 is roped on the cab upper surface 10a. It was placed on the guide 3A (roller 32A).

  However, when climbing the cab upper surface 10a and performing the rope hanging work on the rope guide 3A in this way, the cab upper surface 10A is at a high place (for example, a height of more than 3 m), which is dangerous for the work on the cab. In addition, there were problems with climbing up and down the hill (top surface of the cab).

  Further, in order for the worker M to climb from the carrier frame 11 to the cab upper surface 10a, step S is required (in the example of FIG. 5, step S is provided in the boom rest 17). There was a problem of high costs.

  Further, the rope guide 3A used in the conventional rope guide apparatus shown in FIG. 5 employs a rotatable roller 32A. However, the roller requires a rotation mechanism, and therefore the cost is high. There was also a problem.

  Therefore, the present invention provides a rope guide device that can perform the operation when placing the rope on the rope guide provided on the lower surface of the boom from a relatively low place on the carrier frame and can be manufactured at low cost. It is aimed.

  The present invention has the following configuration as means for solving the above problems.

[Invention of Claim 1 of the Present Application]
In the invention of claim 1 of the present application, the boom lower surface is close to the upper surface of the cab of the vehicle and the rope hooked on the hook is guided from the tip of the boom to the rear of the cab through the gap between the cab upper surface and the boom lower surface. The present invention is intended for a rope guide device that is applied to a hook storage device of a crane truck that stores a hook on a carrier frame.

  The crane truck employed in the present invention is generally referred to as a truck crane, and includes a vehicle provided with a cab for traveling operation at the front of a carrier frame, and a swivel provided on the carrier frame of the vehicle. And a boom (expandable boom) provided on the swivel so as to be freely raised and lowered, and a hook suspended from the tip of the boom are configured as basic equipment.

  In this crane vehicle, in the boom retracted position, the tip of the boom projects forward from the cab of the vehicle, while the lower surface of the boom is quite close to the upper surface of the cab.

  To store the hook, the rope that is hung on the hook is guided from the boom tip (lower sheave) to the rear of the cab through the gap between the upper surface of the cab and the lower surface of the boom, and the hook is engaged with the hook on the carrier frame. This is done by locking (storing) the stopper.

  In this hook retracted state, the straight line connecting the lower sheave lower surface of the boom tip in the boom retracted position and the hook engaging portion on the carrier frame abuts the cab. It is necessary to support so as not to contact the upper surface.

  Therefore, in the invention of claim 1 of the present application, a rope guide device is provided to prevent the rope from coming into contact with the upper surface of the cab in the hook retracted state. This rope guide device has the following configuration.

  That is, the rope guide device protrudes laterally with the rod rope guide for placing the rope hanging on the hook facing outward in the boom width direction at a substantially central position of the front and rear width of the cab on the lower surface of the boom when the boom is retracted. Installed in a posture. This rope guide is for supporting a rope by placing it thereon, and the main part of the rope guide is a rod for placing the rope.

  Also, the rope guide (rod body) has its outer end boomed from the foremost position (position closest to the rear surface of the cab) on the carrier frame to a position where the rope can be gripped and placed on the outer end of the rope guide. It extends toward the base end. In other words, the outer end of the rope guide (rod body) extends a predetermined length from the fixed position of the rod base end portion toward the boom proximal end side, and the operator stands at the foremost position on the carrier frame. When the hand is extended from the raised position to the boom tip side, the hand can reach the outer end of the rope guide or be brought close to the position.

  In addition, the rope guide has its outer end inclined upward so as to guide the rope placed on the outer end of the rope guide to the inner side of the rope guide. That is, this rope guide has a substantially half length portion on the outer end side of the rod body inclined toward the boom base end side and the upper side.

  The rope guide device according to the first aspect is used when the hook is stored on the carrier frame in the boom storage posture, and functions as follows.

  That is, when the boom is lowered to the retracted position with the hook locked to the hook locking portion on the carrier frame, the rope guided from the boom tip (lower sheave) to the hook locking portion side is the cab top surface. To come into contact. Therefore, in order to separate the rope from the upper surface of the cab, the rope is placed on the rope guide on the lower surface of the boom. The rope is placed on the carrier frame at the foremost position (position near the rear surface of the cab). From there, reach to the tip of the boom, grasp the rope located near the outer end (tip) of the rope guide, and place the rope on the outer end of the rope guide.

  By the way, in the rope guide device according to the first aspect, since the outer end side of the rope guide is extended to the boom base end side, an operator standing at the foremost position (position near the rear surface of the cab) on the carrier frame When the hand is extended to the distal end side, the hand can be brought close to the outer end of the rope guide, and thus the rope can be gripped at a position close to the outer end of the rope guide.

  In this way, when an operator standing on the carrier frame can grip the rope at a position close to the outer end of the rope guide, the rope is guided from the carrier frame (without climbing to the upper surface of the cab). It can be placed on the outer end relatively easily. Even if the hand does not reach the outer end of the rope guide when the hand is extended, the rope can be gripped at a position close to the outer end of the rope guide, so grip the rope and sprinkle the rope toward the outer end of the rope guide. Can.

  In addition, as described above, the rope placed on the outer end of the rope guide is automatically slid into the inner side of the rope guide by its own weight because the outer end of the rope guide is inclined upward. Become.

[Invention of claim 2 of the present application]
The invention according to claim 2 of the present application is the rope guide device according to claim 1, wherein the rope hung on the hook is placed at an appropriate position between the rear end surface of the cab and the hook locking position on the carrier frame. This is characterized in that an arc surface plate having a moderate curvature is used on the rope mounting surface of the other rope guide.

  By the way, even if the rope is supported by the rope guide on the lower surface of the boom in the boom retracted position as in the first aspect, the straight line connecting the rope guide portion on the lower surface of the boom and the hook engaging portion on the carrier frame. In some cases, the rope comes into contact with the rear upper end of the cab when the hook is retracted.

  When the rope is in contact with the rear end of the upper surface of the cab in the hook storage state, the rope hanging on the hook is placed at an appropriate position between the rear end surface of the cab and the hook locking position on the carrier frame. I try to install another rope guide.

  By the way, in this type of rope guide, a roller is conventionally used as indicated by reference numerals 4A and 5A in FIG. 5. However, since the roller has a relatively small diameter, the rope mounting surface (roller outer peripheral surface) The curvature becomes large (abrupt), and the rope hung on the outer peripheral surface of the roller is excessively bent and the rope is easily damaged.

  Therefore, in the invention according to claim 2 of the present application, the rope supported by the other rope guide is excessive because the other rope guide uses an arc face plate having a gentle curvature on the rope mounting surface. I try not to bend it.

[Effect of the invention of claim 1 of the present application]
The rope guide device according to the first aspect of the present invention has the following effects.

  (1) Since the rod guide is used as the rope guide for supporting the rope on the lower surface side of the boom in the boom retracted position, the conventional rope guide made of roller (requires a rotation mechanism). There is an effect that it can be manufactured at a lower cost.

  (2) The outer end of the rope guide is extended toward the boom base end side so that the rope can be gripped and placed on the outer end of the rope guide from the foremost position on the carrier frame where a person is placed. Therefore, since the work of placing the rope on the rope guide can be performed from the relatively low carrier frame, the rope placing work can be performed at a safe place in the low place.

  (3) The outer end of the rope guide is inclined upward so that the rope placed on the outer end of the rope guide can be guided to the inner side of the rope guide, so the rope is placed on the outer end of the rope guide. There is an effect that it can be automatically slid to the back side of the rope guide by its own weight only by hanging (the subsequent rope back movement operation becomes unnecessary).

[Effect of the invention of claim 2 of the present application]
The invention of claim 2 of the present application is the rope guide surface of the rope guide device according to claim 1 as another rope guide installed at an appropriate position between the rear end surface of the cab and the hook locking position on the carrier frame. An arc face plate with a gentle curvature is used.

  If an arc surface plate with a gentle curvature is used on the rope mounting surface of another rope guide as in the second aspect of the invention, the rope supported by the other rope guide is not excessively bent. Has the effect of making it hard to damage (improves durability).

It is a side view of the crane vehicle which employ | adopted the rope guide apparatus of this-application Example. It is an II arrow enlarged view of FIG. FIG. 3 is a sectional view taken along line III-III in FIG. 2. It is a perspective view of another rope guide attached to the boom rest and the front support of the hoisting cylinder in the crane vehicle of FIG. It is a side view of the crane vehicle provided with the conventional rope guide apparatus. It is VI-VI cross-sectional enlarged view of FIG. 5 (detailed drawing of a roller rope guide).

[Example]
A rope guide device in a hook storage device for a crane truck according to an embodiment of the present invention will be described with reference to FIGS. The crane truck of FIG. 1 employed in the embodiment of the present application is basically configured in the same manner as that of the conventional example of FIG. 5 and overlaps with that described in the background section above. The basic configuration of the crane vehicle of FIG. 1 (the embodiment of the present invention) will be described below.

  The crane vehicle of the embodiment shown in FIG. 1 is also of a type called a truck crane provided with a cab for traveling operation and a cab for crane operation.

  In this crane vehicle, a cab (for traveling operation) 10 is provided at the front portion of the carrier frame 11 of the vehicle 1 and a boom 7 is attached to a swivel (not shown) mounted on the carrier frame 11 so as to be freely raised and lowered. Yes. The crane cab 6 is mounted on a swivel.

  Although the telescopic boom is adopted as the boom 7, it is simply referred to as a boom in the following description. Further, the lower surface side of the boom 7 employed in this embodiment is formed in a circular arc shape as shown in FIG.

  In the boom retracted position, the crane vehicle of FIG. 1 lies down to a substantially horizontal position in which the lower surface 7a of the boom 7 is close to the upper surface 10a of the cab 10 with the boom tip 71 protruding forward from the cab 10 of the vehicle 1. Is done.

  1, the rope (wire rope) 20 hung on the hook 21 is passed from the lower sheave 72 of the boom tip 71 through the gap between the cab upper surface 10a and the boom lower surface 7a in the boom retracted state. 10, the hook 21 is locked (stored) to the hook locking portion 13 on the carrier frame 11.

  In the crane vehicle shown in FIG. 1, in order to store the hook 21 on the carrier frame 11, the hook 21 is locked to the hook locking portion 13 on the carrier frame 11 in a posture in which the boom 7 is raised by a predetermined angle. Thereafter, the boom 20 is laid down until it is close to the upper surface 10a of the cab 10 while the rope 20 hung on the hook 21 is loosely tensioned.

  By the way, in the hook storage device shown in FIG. 1 (the one that stores the hook 21 on the carrier frame 11), the hook engaging portion 13 on the carrier frame 11 from the lower surface of the lower sheave 72 of the boom tip 71 in the boom storage posture. A straight line connecting the two hits the cab 10. In the hook storage device of FIG. 1, the rope guide 3 is provided at a substantially central position of the front and rear widths of the cab on the lower surface 7a of the boom so that the rope 20 does not contact the upper surface 10a of the cab when the hook is stored. Further, separate rope guides 4 and 5 (described later) are provided at the boom rest 17 portion and the tip portion (front support 16) of the hoisting cylinder 15, respectively.

  As shown in FIGS. 2 and 3, the rope guide 3 positioned above the cab upper surface 10a in the boom retracted position uses a single bar 32 bent into a shape described later. A base end portion welded to the base plate 31 is used.

  The rod body 32 of the rope guide 3 employs a single metal rod (made of steel) in this embodiment, and is bent into the shape shown in FIGS. 2 and 3 (described later). The rod body 32 may be made of any suitable material as long as it is a hard rod material having a predetermined strength (for example, a hard plastic rod can be adopted).

  As shown in FIGS. 2 and 3, the rod body 32 of the rope guide 3 is a rod (steel rod) having a thickness of about 30 mm, for example, and an outward portion 33 having a predetermined length in the boom width direction. The inclined portion 34 is formed in a series from the end portion of the outward portion 33 to the boom base end side and upward.

  The inclined portion 34 of the rod body 32 includes a base-side inclined portion 34a that is inclined outward and upward, and a front-side inclined portion 34b that is inclined from the distal end of the base-side inclined portion 34a toward the boom proximal side and upward. And have.

  The rod body 32 is welded with the base end portion of the outward portion 33 to the lower surface side of the base plate 31 so that the inclined portion 34 is inclined upward.

  The rope guide 3 is attached to the portion corresponding to the substantially central position of the front and rear width of the cab on the boom lower surface 7a in the boom retracted position shown in FIG. 1 as follows. That is, the mounting base 30 is welded to the boom lower surface 7a portion to which the rope guide 3 is attached at a position displaced to one side (right side in FIG. 3) from the center of the boom width. And the base plate 31 is fixed to the mounting base 30 with bolts in such a posture that the outward portion 33 of the rod 32 is directed outward in the boom width direction and the inclined portion 34 is directed upward. .

  When the rope guide 3 is attached, the outer end portion 34c of the inclined portion 34 protrudes outward from the boom 7 to the vicinity of the side surface of the boom 7 as shown in FIGS. 2 and 3, whereas the outward portion as shown in FIG. The projection length from the shaft center 33 to the outer end 34c of the inclined portion 34 toward the boom base end is set to about 240 mm (not limited), for example, and as shown in FIG. The outer end 34c of 34 is set to be higher than the base plate 31 by, for example, about 60 mm (not limited).

  As shown in FIG. 3, the boom 7 employed in this embodiment has a boom lower surface 7a having a circular arc cross section, and the rod outer end 34c of the rope guide 3 attached to the boom lower surface 7a is the outer surface of the boom. It is quite far from.

  The rope guide device (rope guide 3) of this embodiment has the following functions.

  By the way, in the crane vehicle applied in the present application, in order to store the hook 21 on the carrier frame 11, the hook 21 is hooked on the carrier frame 11 in a posture in which the boom 7 is lifted by a predetermined angle as described above. After engaging with the stop 13, the boom 7 is laid down until it is close to the cab upper surface 10 a in a state where the rope 20 hung on the hook 21 is loosely tensioned.

  In the retracted state of the hook and boom, the rope 20 is guided from the lower sheave 72 of the boom tip 71 to the rear of the cab through a gap between the cab upper surface 10a and the boom lower surface 7a. 3, the rope 20 comes into contact with the cab upper surface 10a. If the rope 20 is in contact with the cab upper surface 10a, the rope 20 is rubbed against the cab upper surface 10a and the rope 20 and the cab upper surface 10a are damaged.

  By the way, in the retracted state of the hook and boom shown in FIG. 1, the rope guide 3 attached to the boom lower surface 7a has a predetermined length (for example, about 240 mm) with the outer end portion 34c of the rod body 32 facing the boom proximal end side. It is extended. Therefore, when the worker M extends his hand from the position standing on the frontmost position on the carrier frame 11 (position near the rear surface of the cab) toward the tip of the boom as shown by the chain line in FIG. It can come close to the outer end 34c of the.

  Then, in order to place the rope 20 passed between the boom lower surface 7a and the cab upper surface 10a on the rope guide 3 of the boom lower surface 7a, the worker M is placed on the carrier frame 11 as shown by a chain line in FIG. Stand in the foremost position, extend the hand to the tip of the boom, and hold the rope 20 with that hand (see FIG. 2). Thus, the position where the hand is extended from the foremost position on the carrier frame 11 and the rope 20 is gripped reaches the outer end portion 34c of the rope guide 3 or is very close to the position. Therefore, the work of placing the rope 20 on the outer end portion 34c of the rope guide 3 can be performed relatively easily. If the position where the rope 20 is gripped does not reach the outer end portion 34c of the rope guide 3, the gripped rope 20 is sprinkled on the outer end portion 34c of the rope guide 3 so that the rope 20 can be placed relatively easily. Can do.

  The rope guide device of this embodiment has the following functions.

  First, in the rope guide device of this embodiment, since the rod guide 3 is used as the rope guide 3 that supports the rope 20 on the boom lower surface 7a side, the conventional rope guide made of rollers (FIGS. 5 and 6). Compared to (requires a rotation mechanism), it can be manufactured at a low cost.

  Further, in the rope guide device of this embodiment, the work of placing the rope 20 on the rope guide 3 can be performed from the relatively low carrier frame 11, so that the rope placing work can be performed at a safe place in the low place ( Work safety is improved). Incidentally, as in the conventional example of FIG. 5, when climbing on the cab upper surface 10a and carrying the rope on it, it is a work at a high place, which is dangerous and requires a step to climb to the cab upper surface. However, the rope guide device of this embodiment can improve the above-mentioned problem as in the conventional example of FIG.

  Furthermore, in the rope guide device of this embodiment, the outer end side (inclined portion 34) of the rope guide 3 is inclined upward, and the rope 20 placed on the outer end portion 34c of the rope guide 3 is automatically moved to the inner side of the rope guide. Therefore, the rope 20 can be automatically slid into the back side of the rope guide by its own weight only by placing the rope 20 on the rope guide outer end portion 34c.

  By the way, in the crane vehicle of the embodiment of FIG. 1, the boom and the hook are separately stored at two locations between the rear end surface of the cab 10 and the hook locking position (hook locking portion 13) on the carrier frame 11. Rope guides 4 and 5 are installed. These separate rope guides 4 and 5 correspond to claim 2 of the present application, and are used for respectively placing the ropes 20 guided between the rope guide 3 and the hook engaging portion 13 on the lower surface 7a of the boom. is there.

  In this embodiment, the other rope guides 4 and 5 have the structure shown in FIG. 4, and the rope guides 4 and 5 are connected to the boom rest 17 portion and the front support 16 of the hoisting cylinder 15. It is attached to each part.

  In another rope guide 4 (or 5) shown in FIG. 4, a bar 42 having a predetermined length is extended laterally from a mounting base 41, and an arcuate face plate 43 having a gentle curvature is provided on the front side of the bar 42. At the same time, guide rods 44 and 44 are erected on both ends of the circular arc face plate 43, respectively.

  The arc surface plate 43 is for placing the rope 20 on the upper surface thereof, but the curvature of the upper surface (rope surface) of the arc surface plate 43 is gentle.

  Then, the rope guide 4 (or 5) in FIG. 4 is attached to the upper position of the boom rest 17 and the front support 16 of the hoisting cylinder 15 as shown in FIG. The rope 20 extended from the boom guide 7 is successively placed on the rope guide 3 on the boom lower surface 7a, the rope guide 4 on the boom rest 17 portion, and the rope guide 5 on the front support 16 portion of the hoisting cylinder 15.

  By the way, as another rope guide of this type, conventionally, a roller has been used as indicated by reference numerals 4A and 5A in FIG. 5, but since the diameter of the roller is relatively small, the rope mounting surface (roller outer peripheral surface) The curvature becomes large (abrupt), and the rope hung on the outer peripheral surface of the roller is excessively bent and the rope is easily damaged.

  Therefore, as in this embodiment (FIG. 4), when an arcuate face plate 43 with a gentle curvature is used on the rope mounting portion of another rope guide 4, 5, the rope supported by the other rope guide 4, 5. Since 20 does not bend excessively, there is an advantage that the rope 20 is hardly damaged (durability is improved).

  In the embodiment of FIG. 1, the rope guides 4 and 5 with the arcuate face plates 43 shown in FIG. 4 are adopted for the position closer to the upper part of the boom rest 17 and the front support 16 of the hoisting cylinder 15, respectively. A line connecting the rope guide 3 portion located above the upper surface 10a, the rope guide 4 portion attached to the boom rest 17 and the rope guide 5 portion attached to the front support 16 of the hoisting cylinder 15 is in a state close to a straight line. Therefore, the rope 20 placed on the rope guide 4 attached to the boom rest 17 does not bend so much (the rope 20 is not easily damaged).

  Therefore, in another embodiment of the present application, it is possible to use a roller (having a tight curvature on the rope contact surface) shown in FIGS. 5 and 6 for the rope guide 4 in the boom rest 17 portion. Even when a roller is used for the rope guide 4 of the boom rest 17 portion, the rope guide 5 is attached to the front support 16 of the hoisting cylinder 15 so that the rope 20 is bent considerably. As the rope guide 5 of the front support 16, it is desirable to use a rope guide with a circular face plate 43 shown in FIG. 4.

  1 is a vehicle, 3 is a rope guide, 4 and 5 are other rope guides, 7 is a boom, 7a is a boom lower surface, 10 is a cab, 10a is a cab upper surface, 11 is a carrier frame, 13 is a hook locking portion, and 20 is A rope, 21 is a hook, 32 is a rod, 33 is an outward portion, 34 is an inclined portion, and 34c is a tip portion.

Claims (2)

With the boom retracted position, the lower surface of the boom is close to the upper surface of the cab of the vehicle, and the rope hanging on the hook is guided from the tip of the boom to the rear of the cab through the gap between the upper surface of the cab and the lower surface of the boom, and the hook is stored on the carrier frame. In the crane hook storage device
A rope guide made of a rod on which the rope hung on the hook is placed is placed in a laterally projecting posture toward the outside in the boom width direction at a substantially central position of the front and rear width of the cab on the lower surface of the boom when the boom is retracted. on the other hand,
The outer end of the rope guide extends from the foremost position on the carrier frame to a position where the rope can be gripped and placed on the outer end of the rope guide toward the boom base end side,
The outer end side of the rope guide is inclined upward in order to guide the rope placed on the outer end portion of the rope guide to the inner side of the rope guide.
A rope guide device in a hook storage device for a crane truck. In claim 1,
A separate rope guide for placing the rope hung on the hook is installed at a proper position between the rear end surface of the cab and the hook locking position on the carrier frame, and
An arc face plate with a gentle curvature is used for the rope mounting surface of the other rope guide.
A rope guide device in a hook storage device for a crane truck.

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