JP2006167263A - Master rope supporting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a master rope supporting device for stretching a master rope over a loading platform. <P>SOLUTION: A rear side master rope support 36 held by a holding table is pulled out to the outside of a loading platform side face 12b, Two extensible supports 33 and 34 are extended to a projecting position being an advance limit position from a support body 32, and the support body 32 is rotated to a standing position being nearly vertical with a rotary shaft 31 as a center. A frequent appearance support 22 of a front side master rope support 24 is extended to the projecting position being the advance limit position. By supporting the master rope with a hook 35 provided at the tip of the support 33 and a rotation roller 23 provided at the tip of the support 22, the master rope 28 is stretched over the loading platform. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a master rope support device for supporting a master rope so as to stretch the master rope above a loading platform of a transportation vehicle.

  When loading or unloading a load on the loading platform of a truck or trailer or other transportation vehicle with a seat or when loading or unloading a load from the loading platform, an operator may get on the loading platform, so the worker steps off the platform. It is necessary to take measures to prevent accidents such as falling to the ground.

  Up to now, a technology has been known to alleviate the impact on the human body when falling by allowing the master rope to be stretched over the loading platform and for the worker to wear a safety cord or lifeline connected to the master rope. Yes. For example, Patent Document 1 discloses a technique in which a master rope (lifeline hooking body) on which a lifeline is hooked is provided on a ceiling portion of a wing body type loading platform. In Patent Document 2 and Patent Document 3, by supporting both ends of the master rope with support columns, the master rope is stretched over a loading platform that does not have a ceiling portion like a flat body type or a dump mold and opens toward the sky. This technique is disclosed.

  On the other hand, as disclosed in Patent Document 4 without stretching the master rope above the loading platform, a dedicated crash-preventing vehicle having a vertically movable and rotatable horizontal arm is stopped beside the loading platform of the transport vehicle, A technique is also known in which an operator wears a wire rope suspended from the tip of the horizontal arm.

Some transport vehicles have a tilt plate attached to the side of the loading platform in order to prevent accidents such as the load falling from the loading platform. The tilting plate can be opened and closed with the lower edge connected to the loading platform as the rotation axis so that all or part of the tilting plate can be closed or opened depending on the progress of the lifting and lowering work It has become. In addition, some transport vehicles have a plurality of seat hooks provided at the lower end of the loading platform. The cargo is covered with the seat, and the connecting string provided at the edge of the seat is attached to and detached from the seat hook. By mounting it freely, it is possible to protect the load from dirt caused by dust while preventing the load or the sheet from falling.
Utility Model Registration No. 3096850 JP 2003-93531 A JP 11-291863 A JP 2002-104776 A

  With respect to a cargo bed that does not have a ceiling portion such as a flat body type or a dump type and opens toward the sky, the technique disclosed in Patent Document 1 cannot stretch the master rope. Further, when a seat hook is provided at the lower end portion of the loading platform, in the technique disclosed in Patent Document 2, the supporter and the supporting column provided at the rear portion of the loading platform become an obstacle and the seat is seated on the seat hook. Can not be attached, and the support in the rear part of the loading platform is protruded, so that the longitudinal dimension of the vehicle is increased. When there are multiple places for loading and unloading luggage on the premises, the technology disclosed in Patent Document 3 is complicated because it is necessary to reassemble the struts and re-stretch the master rope each time, and further, the slopes and undeveloped When the master rope is stretched on the ground, the flat plate supporting the support cannot be stably installed on the ground, and sufficient safety cannot be ensured. Further, in the technique disclosed in Patent Document 4, it is necessary to prepare a new dedicated vehicle, which increases costs and is complicated to move to a cargo transport destination. It is necessary to secure a space for making it happen.

  In addition, it is not preferable to install a master rope support device that stretches the master rope above the cargo bed on the inside of the tilt plate, that is, on the cargo bed surface, because the load carrying capacity of the load is reduced. Moreover, unless tension is applied to stretch the master rope, it is dangerous because the shock at the time of a fall accident cannot be absorbed sufficiently.

  An object of the present invention is to provide a master rope support device capable of solving these problems.

  The master rope support device of the present invention is a master rope support device that supports one end of a master rope that is supported above the loading platform of a transportation vehicle and that extends across the longitudinal direction of the cargo platform, and is fixed to the cargo platform. A support base for supporting the rotary shaft, which is fixed to the tip at a substantially right angle, so as to be slidable and rotatable in the axial direction, and a hook that engages with the other end of the master rope. A telescopic column that is slidably mounted in an axial direction between a protruding position and a storage position, and a support position that is provided on the support base, and that the column main body is located outside the side surface of the cargo bed, and an upright position A rotating shaft locking means for fixing the rotating shaft under the state, and a column locking means for fixing the expansion / contraction column to the column body under the state where the expansion / contraction column is in the protruding position. It is characterized by.

  In the master rope support device of the present invention, one or a plurality of intermediate telescopic struts are mounted between the strut body and the telescopic struts so as to be slidable in the axial direction between the protruding position and the storage position. Features.

  In the master rope support device of the present invention, the rotating shaft locking means is mounted on the guide cylinder fixed to the support base, and is slidably mounted in the guide cylinder in the axial direction, and the column main body is in the support position. And having a lock pin that fits into a lock hole formed in the rotating shaft under the upright position.

  The master rope support device of the present invention is characterized in that the strut locking means has a lock pin that fits into a lock hole formed in the telescopic strut in a state where the telescopic strut is in the protruding position. And

  The master rope support device according to the present invention attaches a holding base that holds the support main body to the support base in a state where the support main body is in a retracted position that is inward of the side surface of the support base and in a horizontal position. It is characterized by that.

  The master rope support device of the present invention is characterized in that the support base is fixed to the rear part of the cargo bed in the vehicle width direction, and the column main body is erected along the outer surface of the side surface tilt plate of the cargo bed.

  The master rope support device according to the present invention fixes the support base to the rear part of the cargo bed, fixes the front column to the front part of the cargo bed, and engages the other end with the hook. The support column supporting the portion is mounted on the front support column so as to be slidable in the axial direction between the protruding position and the storage position. It has the support | pillar lock means fixed to the said front side support | pillar, It is characterized by the above-mentioned.

  In the master rope support device of the present invention, one or a plurality of intermediate protrusion / distraction struts are slidably mounted between the front strut and the protrusion / distraction strut in the axial direction between the protruding position and the storage position. It is characterized by.

  The master rope support device of the present invention is provided with a rotating roller that supports one end portion of the master rope at the tip of the in / out strut, and a winder that winds the master rope from one end side is attached to the vehicle. Tension is applied to the master rope by a take-off machine.

  According to the present invention, the master rope can be stretched above the carrier that does not have a ceiling portion and opens toward the sky, and the worker wears a safety cord connected to the master rope so that the operator can wear the safety rope from the carrier. Can be prevented in advance.

  According to the present invention, since the master rope support device is not disposed inside the cargo bed and supports the master rope from the outside of the cargo bed, the load carrying capacity of the load is not reduced. Further, the rear master rope support can be stored compactly under the floor of the loading platform, and does not obstruct the opening and closing movement of the tilting plate or increase the size of the vehicle in the front-rear direction. Furthermore, since a gap is formed so that a seat can be inserted between the rear main strut column and the side surface of the loading platform when the column main body is raised, the master rope stretched above the loading platform The work of attaching the seat to the seat hook can be performed in a safe state with the lifeline to be connected.

  According to the present invention, since the master rope support device is attached to the loading platform, in a campus where there are a plurality of places where the cargo is lifted and lowered, it is possible to travel on the campus with the master rope stretched over the loading platform. it can. It is possible to stably stretch the master rope even on sloping or undeveloped land.

  According to the present invention, by setting the number of intermediate telescopic struts to an arbitrary number, the length of the strut body at the storage position can be set to an arbitrary length, and depending on the size of the vehicle, one telescopic strut can be set. It can also be configured to be housed in the column body. Similarly, an arbitrary number of intermediate support columns can be used. By pushing the telescopic struts into the storage position and setting the rear parent strut struts to the minimum length, the work of engaging the master struts with the hooks can be performed on the ground with a stable scaffold. In the same way, by pushing the in / out strut into the storage position and minimizing the front parent strut strut, the work to support the one end of the main strut on the retractable strut is performed on a towing vehicle with a solid scaffolding. Can be safe.

  According to the present invention, one end of the master rope whose other end is engaged with the hook of the rear master rope support is supported by the rotating roller provided at the tip of the retractable support pillar, and the master rope is wound from the one end side. The tension can be applied to the master rope.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a left side view schematically showing a loading platform of a semi-trailer type transport vehicle equipped with the master rope support device of the present invention, and FIG. 2 is a front view of FIG.

  The semi-trailer type transport vehicle 10 is a transport vehicle of a type that pulls a loading platform 12, also referred to as a trailer, by a tow vehicle 11 on which an engine is mounted. A king pin 13 is mounted under the floor in front of the loading platform 12, and the loading platform 12 can be pulled by connecting the king pin 13 to a coupler 14 provided in the towing vehicle 11. A front wall body 16 to which the sheet receiving base 15 is fixed is fixed vertically to the front end surface 12a of the loading platform 12, and the tilt plates 17 and 18 can be freely opened and closed on the side surface 12b and the rear end surface 12c of the loading platform 12, respectively. It is assembled. A sheet (not shown) for covering the load is stored in the sheet receiving base 15.

  A front parent rope support device 19 is attached to the front wall body 16, and in the illustrated case, a support member 20 that extends horizontally toward the front of the vehicle is fixed. A front column 21 extending substantially vertically is fixed. One front / rear strut 22 is slidably attached to the front strut 21 in the axial direction, and the front / rear strut 22 is slidably fitted inside the front strut 21. A rotating roller 23 that supports one end of the master rope 28 is attached to the tip of the in / out strut 22. In the case shown in the figure, a front parent strut 24 is constituted by a front strut 21 and an in / out strut 22 that are fitted together, and when the in / out strut 22 is pushed into the front strut 21, The front side master rope support 24 becomes the storage position and has the minimum length. On the other hand, when the in / out strut 22 is pulled out to the projecting limit position, the projecting position is obtained, and the front parent strut support 24 has the maximum length. In this way, the illustrated front-side parent rope support 24 is configured to expand and contract in one step in the axial direction between the storage position and the protruding position.

  A lock hole 26 is formed at the front end of the front column 21 in order to restrict the sliding of the protruding column 22 under the state where the protruding column 22 protrudes to the forward limit position with respect to the front column 21. Corresponding to this, lock holes are formed in the in / out struts 22, and lock pins 27 penetrate the lock holes 26. The lock pin 27 is attached to the front parent rope support 24 by a string-like member such as a chain, and allows the lock pin 27 to pass through the lock hole 26 in a state in which the retracting support 22 is pulled out to the protruding position. Thus, the in / out strut 22 can be fixed at the protruding position. Thus, the lock pin 27 constitutes a column lock means.

  The master rope 28 supported by the front master rope support device 19 in the protruding position is supported by the rear master rope support device 29 at the other end, and the master rope 28 is stretched above the loading platform 12 in the longitudinal direction of the vehicle. Will be passed.

  FIG. 3 is an enlarged perspective view of the rear master support device 29 shown in FIGS. 1 and 2. The master rope support device 29 is attached to the rear part of the cargo bed 12, and has a support bed 30 fixed along the vehicle width direction below the rear floor of the cargo bed 12, as shown in FIG. A rotary shaft 31 is supported on the support base 30 so as to be slidable and rotatable in the axial direction, and a column main body 32 is fixed to the tip of the rotary shaft 31 so as to be substantially perpendicular to the rotary shaft 31.

  Two telescopic columns 33, 34 are slidably mounted in the column main body 32 in the axial direction, the telescopic column 33 is slidably fitted inside the telescopic column 34, and the telescopic column 34 is attached to the column main body 32. The telescopic support 34 is an intermediate telescopic support that is slidably fitted between the extendable support 33 and the support body 32. A ring-shaped hook 35 to which the other end of the master rope 28 is engaged is attached to the distal end of the telescopic support 33. In the case shown in the drawing, a rear main strut support 36 is constituted by a support main body 32 and two telescopic support pillars 33, 34 which are fitted to each other. If 34 is pushed in, these expansion-contraction support | pillars 33 and 34 will be in a storage position, and the back side master rope support | pillar 36 will become minimum length. On the other hand, when the telescopic struts 33 and 34 are each pulled out to the projecting limit position, the telescopic struts 33 and 34 are in the projecting position, and the rear parent strut support 36 has the maximum length. As described above, the two telescopic struts 33 and 34 are each incorporated in the strut body 32 so as to be slidable between the projecting position and the stowed position, and the rear-side parent rope strut 36 shown in the figure is placed in the stowed position. It extends and contracts in two stages in the axial direction between the extended position.

  The rear main rope support device 29 shown in the figure has one intermediate telescopic strut 34, but a plurality of intermediate telescopic struts 34 are mounted between the strut body 32 and the front telescopic strut 33. Alternatively, the intermediate telescopic strut 34 may be omitted. If the middle telescopic strut 34 is omitted, the rear parent strut 36 is formed by the strut body 32 and one telescopic strut 33 and is expanded and contracted in one stage. If two intermediate telescopic struts are attached, the rear parent The rope support 36 is expanded and contracted in three stages. Similarly, with respect to the master rope support device 19 on the front side, one or a plurality of intermediate support columns may be mounted between the front support column 21 and the front support column 22. Each of the front column 21, the support column 22, the column main body 32, and the two telescopic columns 33 and 34 is formed by a round pipe having a circular cross section. May be formed by a quadrangular square pipe.

  The rotating shaft 31 to which the column main body 32 is fixed is supported by the support base 30 so as to be slidable and rotatable in the axial direction. The rotating shaft 31 rotates about 90 degrees between the horizontal position and the standing position. The strut body 32 moves in the axial direction between a support position on the outside of the side surface 12b of the loading platform 12 and a retracted position on the inside.

  FIG. 4 is a partially cut-away plan view showing a deployment procedure of the master rope support device of the present invention, and FIG. 4 (A) shows a state where the telescopic columns 33 and 34 are stored in the column main body 32. FIG. 4B shows a state in which the column main body 32 is set to the horizontal position and the retracted position, and FIG. 4B illustrates a position where the telescopic columns 33 and 34 protrude from the storage position with the column main body 32 moved from the retracted position to the support position. 4C shows a state in which the column main body 32 is rotated from the state of FIG. 4B to the standing position.

  The support base 30 is formed by a cylindrical member, and a lock pin 39 penetrating the rotary shaft 31 from the through hole 38 formed in the support base 30 is attached to the guide cylinder 37 fixed to the support base 30. The lock pin 39 is fitted in a holding hole 40 formed in the guide cylinder 37 so as to face the through hole 38. On the other hand, as shown in FIG. 4C, when the rotary shaft 31 is pulled out from the support base 30 to the support position and the rotary shaft 31 rotates to the position where the column main body 32 becomes the standing position, the through hole 38 and the holding hole are provided. A lock hole 41 is formed in the rotary shaft 31 so as to coincide with 40. The rotating shaft 31 is provided with a stopper 42 that comes into contact with the end surface of the support base 30 when it is pulled out to the support position.

  Therefore, when the lock pin 39 is passed through the lock hole 41 when the rotary shaft 31 is at the position shown in FIG. 4C, the column main body 32 is fixed in the support position and the standing position. Thus, the lock pin 39 and the lock hole 41 constitute a rotation shaft locking means for fixing the rotation shaft 31. In the illustrated case, the lock pin 39 is retracted when the rotary shaft 31 is set to the position shown in FIG. 4A, but the rotary shaft 31 is in the position shown in FIG. 4A. A through-hole through which the lock pin 39 penetrates may be formed in the rotary shaft 31 so that a forward spring force is applied to the lock pin 39 so that the rotary shaft 31 is positioned as shown in FIG. Then, the lock pin 39 may automatically enter the lock hole 41 by a spring force. Moreover, although the rotating shaft 31 is formed of a hollow cylindrical member, it may be formed of a solid columnar member.

  As shown in FIGS. 3 and 4, the loading platform 12 has an L-shape that holds the supporting column body 32 in a state where the supporting column body 32 is in a horizontal position and is in a retracted position inside the loading platform side surface 12 b. A holding base 43 composed of a holding member 43a bent in a bent direction and a drop-off preventing member 43b fixed to the tip of the holding member 43a is fixed. The rear side parent rope support column 36 is held by the loading platform 12 by the holding platform 43 and enters a storage state without protruding to the outside of the loading platform 12 when the vehicle travels.

  A lock hole 44 is formed at the distal end of the column body 32 in order to restrict the sliding of the expansion column 34 under the state where the expansion column 34 protrudes to the forward limit position with respect to the column body 32. Corresponding to this, lock holes are formed in the telescopic struts 34, and lock pins 45 pass through these lock holes 44. Similarly, in order to restrict the sliding of the telescopic column 33 with respect to the telescopic column 34 in a state where the telescopic column 33 protrudes from the column main body 32 to the forward limit position at the tip of the telescopic column 34. A lock hole 44a is formed, and a lock hole is formed in the telescopic support 33 corresponding to the lock hole 44a, and a lock pin 45a penetrates the lock hole 44a.

  Each lock pin 45, 45a is attached to the rear parent rope support 36 by a string-like member such as a chain, and the lock pins 45, 45a are pulled out with the telescopic supports 33, 34 pulled out to the protruding position. Can be fixed at the protruding position by penetrating the lock holes 44 and 44a. Thus, the lock pins 45, 45a constitute a column lock means.

  A lock hole 44b is formed at the tip of the telescopic column 33, and the lock column 44b is brought into the storage position so that the lock hole 44b is aligned with the other lock holes 44 and 44a. By allowing the pins to penetrate therethrough, as shown in FIG. 4 (A), the telescopic struts 33 and 34 in the storage position can be fixed by the lock pins.

  A stopper (not shown) that engages the column main body 32 when the expansion column 34 is in the protruding position is provided at the base end of the expansion column 34. Similarly, the expansion column 33 protrudes from the base end of the expansion column 33. A stopper (not shown) that engages the telescopic strut 34 when the position is reached is provided, and the telescopic struts 33 and 34 are regulated so as not to project and move beyond the projecting position shown in FIG. .

  Next, as shown in FIG. 4 (A), an apparatus deployment procedure for extending the master rope 28 above the cargo bed 12 using the rear master rope support device 29 housed under the floor of the cargo bed 12. An example will be described. First, the column main body 32 in a state of being held and stored on the holding table 43 is moved to the support position where the stopper 42 contacts the support table 30 as shown in FIG. Pull out outside. Next, the respective telescopic columns 33 and 34 are extended to the forward limit position, that is, the protruding position with respect to the column main body 32, and the lock pins 45 and 45a are inserted into the respective lock holes 44 and 44a. In this manner, with the respective telescopic struts 33 and 34 locked at the protruding positions and the rear parent brace strut 36 extended, the strut body 32 together with the telescopic struts 33 and 34 is in a substantially vertical state from the horizontal position. Rotate to the standing position. As a result, the lock hole 41 formed in the rotating shaft 31 is positioned to face the lock pin 39, and the lock pin 39 provided in the guide cylinder 37 is manually inserted into the lock hole 41. By such an unfolding operation, the column main body 32 is fixed at the support position and the standing position as shown in FIG. 4C, and the two telescopic columns 33 and 34 are fixed at the protruding position. The support device 29 is fixed in an upright state as shown in FIGS. Note that the telescopic columns 33 and 34 may be pulled out to the protruding position in a state where the column body 32 is in the support position and the standing position.

  One end of the master rope 28 is supported by the rotating roller 23 of the front master rope support 24 and the other end is engaged with the hook 35 at the tip of the telescopic support pillar 33 so that the master rope 28 is stretched above the loading platform 12. Will be passed. By engaging the master rope 28 with the hook 35 before rotating the column main body 32 to the upright position, the master rope 28 can be safely engaged on the ground with a stable scaffold. Similarly, by pulling the master rope 28 over the rotating roller 23 before pulling the in / out strut 22 to the protruding position, the work can be safely performed on the towing vehicle 11 having a solid scaffold. .

  A winder 46 that winds the master rope 28 is attached to the towing vehicle 11. As a result, the other end of the master rope 28 is engaged with the hook 35 and one end of the master rope 28 is supported by the rotating roller 23, and then the master rope 28 is wound by the winder 46 from one end side thereof. Tension can be applied to the master rope 28.

  Next, an example of a procedure for storing the master rope support device 29 under the floor of the loading platform 12 will be described. First, the lock pin 39 inserted into the lock hole 41 is pulled out as shown in FIG. Under this condition, as shown in FIG. 4 (B), the rear parent rope brace 36 where the two telescopic braces 33 and 34 are in the projecting position is rotated along the tilt plate 17 to the horizontal state. Next, the lock pins 45 and 45a inserted into the lock holes 44 and 44a are pulled out, and the respective telescopic columns 33 and 34 are pushed into the storage positions. Finally, the column main body 32 in a state in which the telescopic columns 33 and 34 are accommodated is pushed to the retracted position shown in FIG. As a result, the master rope support device 29 is compactly arranged inside the cargo bed side surface 12b as shown in FIG. 4 (A), so that it is stored within a predetermined vehicle size limit without hindering traveling. It becomes a state. Alternatively, the support columns 32 may be moved to the retracted position after the support columns 32 are rotated to the horizontal position after the telescopic support columns 33 and 34 have been retracted.

  FIG. 5 is a rear view showing a state in which the load loaded on the loading platform of the transportation vehicle shown in FIG. 1 is covered with a sheet, and a part of the sheet is cut away.

  In the case shown in FIG. 5, a plurality of loads 47 are loaded on the loading platform 12. The rear main rope support device 29 is formed with a gap 49 in which a seat 48 can be inserted between the main rope support 36 and the side surface of the loading platform 12 even when the support main body 32 is erected. . Accordingly, the worker covers the luggage 47 and the tilt plate 17 with the seat 48 in a safe state with the lifeline connected to the master rope 28 stretched above the loading platform 12 and the seat 48. The connecting string 50 provided at the edge of the sheet can be attached to the sheet hook 51. Since the master rope support 36 is disposed outside the seat 48, the master rope support device 29 can be stored under the floor of the loading platform 12 even with the seat 48 attached.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, in the illustrated apparatus, two telescopic struts, that is, an telescopic strut 33 provided with a hook 35 at the tip and an intermediate telescopic strut 34 are accommodated in the strut body 32. Only 33 may be provided, or a plurality of intermediate telescopic struts 34 may be provided. Further, lock holes for fixing the telescopic columns 33 and 34 in the storage position may be formed separately from the lock holes illustrated in the column main body 32 and the telescopic columns 33 and 34, respectively.

  The rear side main rope support device 29 is not limited to the case where one is installed under the floor of the rear part of the loading platform 12, and a plurality of the main rope support devices 29 may be provided under the floor of the loading platform 12, and the column main body 32 projects outward from the side surface of the loading platform 12. You may make it protrude in the back of the loading platform 12 without making it. The hook 35 has a ring shape, but may have any shape as long as the end of the master rope 28 can be engaged.

  Instead of the front master support device 19, a ring-shaped hook is provided on the seat cradle 15 or the front wall body 16. One end of the master rope 28 is engaged with this hook, and the other end is connected to the rear master rope. You may make it support by the support apparatus 29. FIG. Further, instead of the front master rope support device 19, a master rope support device 29 is also mounted under the floor of the front part of the loading platform 12, and the master rope 28 is supported by a pair of parent rope support devices 29 mounted before and after the loading platform. May be supported.

  The rotating roller 23 of the master rope support device 19 may have any shape as long as it can support the master rope 28 so as to be wound up. Further, the present invention is not limited to the semi-trailer type transport vehicle 10 but can be applied to a full trailer, a truck, and the like.

It is a left view which shows roughly the loading platform of the semi-trailer type transportation vehicle with which the master rope support apparatus of this invention was mounted | worn. It is a front view of FIG. It is a perspective view which expands and shows the master rope support apparatus of the back side shown by FIG. 1 and FIG. It is a partially cutaway plan view showing the deployment procedure of the master rope support device of the present invention, (A) is a horizontal position and a retracted position of the strut body in a state where the telescopic strut is stored in the strut body (B) shows a state in which the telescopic column is pulled out from the retracted position to the protruding position with the column main body moved from the retracted position to the support position, and (C) shows the same figure (B). The state which rotated the support | pillar main body from the state of this to the standing position is shown. It is a rear view which shows the state which covered the load loaded in the loading platform of the transportation vehicle shown by FIG. 1 with the sheet | seat, and a part of sheet | seat is notched and shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Semi-trailer type transport vehicle 11 Towing vehicle 12 Loading platform 12a Front end surface 12b Side surface 12c Rear end surface 13 Kingpin 14 Coupler 15 Sheet receiving base 16 Front wall body 17 Tilt plate 18 Hook 19 Front side main rope support device 20 Support member 21 Front side support 22 In / out strut 23 Rotating roller 24 Front side main rope support 26 Lock hole 27 Lock pin 28 Master rope 29 Back main rope support device 30 Support base 31 Rotating shaft 32 Strut body 33 Telescopic strut 34 Intermediate telescopic strut 35 Hook 36 Rear Side parent brace 37 Guide cylinder 38 Through hole 39 Lock pin 40 Holding hole 41 Lock hole 42 Stopper 43 Holding base 43a Holding member 43b Fall-off prevention member 44 Lock hole 44a Lock hole 44b Lock hole 45 Lock pin 45a Lock pin 46 Winding Machine 47 Luggage 48 Sheet 49 Clearance 50 Connection string 51 For sheet hook

Claims (9)

A master rope support device for supporting the other end of the master rope, one end of which is supported above the carrier bed of the transportation vehicle and is stretched across the front and rear directions of the cargo bed,
A support base that is fixed to the loading platform and that supports a rotation shaft that is fixed at a substantially right angle at the front end thereof so as to be slidable and rotatable in the axial direction;
A hook that engages with the other end of the master rope is provided, and an extendable strut that is attached to the strut body so as to be slidable in the axial direction between a protruding position and a storage position;
Rotation shaft locking means provided on the support base, for fixing the rotation shaft under a state where the column main body is a support position that is outside the cargo bed side surface and is in an upright position;
A parent rope support device comprising strut locking means for fixing the telescopic strut to the strut main body in a state where the telescopic strut is in the protruding position.   2. The parent rope support device according to claim 1, wherein one or a plurality of intermediate telescopic struts are slidably mounted between the projecting body and the telescopic strut in the axial direction between the protruding position and the storage position. A parent rope support device characterized by that.   3. The master rope support device according to claim 1, wherein the rotary shaft locking means is a guide cylinder fixed to the support base, and is attached to the guide cylinder so as to be slidable in the axial direction. And a lock pin that fits into a lock hole formed in the rotating shaft under the state of being in the support position and in the standing position.   The master rope support device according to any one of claims 1 to 3, wherein the strut locking means is provided in a lock hole formed in the telescopic strut in a state where the telescopic strut is in the protruding position. A master rope support device having a lock pin to be fitted.   The master rope support device according to any one of claims 1 to 4, wherein the column main body is placed under a state in which the column main body is in a retracted position that is on the inner side of the cargo bed side surface and in a horizontal position. A master rope support apparatus, wherein a holding base for holding is attached to the cargo bed.   The master rope support device according to any one of claims 1 to 5, wherein the support base is fixed to a rear portion of the cargo bed in a vehicle width direction, and the column main body is erected along an outer surface of a side surface tilt plate of the cargo bed. A parent rope support device characterized in that   The master rope support device according to any one of claims 1 to 5, wherein the support base is fixed to a rear portion of the cargo bed, a front column is fixed to a front portion of the cargo bed, and the other end is the hook. An in / out strut that supports one end of the master rope engaged with the front strut is attached to the front side strut so as to be slidable in an axial direction between a protruding position and a storage position, and the in / out strut becomes the protruding position. A master rope support device, further comprising strut locking means for fixing the in / out strut to the front strut under the condition of being caught.   8. The parent rope support device according to claim 7, wherein one or a plurality of intermediate protruding and retracting struts are slidably mounted in the axial direction between the protruding position and the storage position between the front strut and the retracting strut. A parent rope support device characterized by: 9. The master rope support device according to claim 7 or 8, wherein a rotary roller that supports one end of the master rope is provided at a tip of the in / out strut, and a winder that winds the master rope from one end thereof is attached to the vehicle. A tensioner is applied to the parent rope by the winder.

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