JP2001233058A - Sheet covering method and sheet covering device for it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a novel sheet covering method for preventing excessive contact between a sheet and corners of loads without increasing the size of a device and a sheet covering device for it. SOLUTION: The sheet covering method is characterized in that a sheet center part 4c located on an almost intermediate position between a base end 4a and a free end is turned in a condition of being tucked up as the sheet base end 4a held by a suspension cable 5 is turned; then the mast 3 is turned to a position above loads C to release the retention of the tucked-up condition of the sheet center part 4c avoiding excessive contact between a sheet 4 and corners Gc of loads G; and then only the sheet base end 4a is turned.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seating method for protecting a load after loading the load on a loading portion such as a truck, and a seating apparatus for performing the method.

[0002]

2. Description of the Related Art For example, a method of loading a load on a loading portion such as a truck bed and then placing a sheet or the like on the load to protect the load has conventionally been adopted. In this method, the sheet is always fixed and installed on the loading section by multiple frame members that have been set up on the loading platform in advance, or the loading section is formed in advance by a metal plate etc. in a box shape, and the left and right sides can be opened and closed And so-called wing body type. However, such a type in which a protective body such as a sheet is permanently installed above the loading portion does not require the work of hanging the sheet or the like, or has an advantage that the sheet hanging work can be easily performed even if it is required, There has been a problem that the frame portion, the non-movable portion, and the like hinder the original cargo handling work, and a problem that the size and size of the luggage is limited to some extent.

[0003] For this reason, so-called open deck type trucks having an open cargo portion are still being used as transport vehicles. By the way, when using such a truck, the sheet hanging work is, of course, often performed at a high place where the worker climbs to the top of the stacked luggage,
The work was rather dangerous. For this reason, the present applicant has attempted to develop such a sheet hanging operation automatically, and has filed a patent application for Japanese Patent Application Laid-Open No. 2000-6666 “Sheet hanging device”. In this system, a liftable mast is installed before and after the loading section, and the free end of the mast is connected with a suspension cable, which supports one side edge of the seat. The seat can be hung accordingly.

[0004] Japanese Patent Application Laid-Open No. 2000-6666 describes that
Although there was a considerable effect in eliminating workers' high-altitude work, as a result of experiments with a prototype, there was room for improvement in the following points for smoother seating operation. Turned out to be. Specifically, FIG.
As shown in FIG. 1, in Japanese Patent Application Laid-Open No. 2000-6666, the suspension cable is rotated while supporting only one side edge of the seat 4 '. From about four, it was found that the contact resistance between the sheet 4 'and the load suddenly increased, and an excessive load was applied to the motor and the mast 3', and in some cases, the apparatus itself was hindered.

[0005] When the mast 3 'is rotated to about 3/4, the seat 4' is inevitably in a low attitude.
The cause was considered to be contact with both left and right corners Gc of the luggage group G. That is, in the method of rotating the mast 3 'while supporting only one side edge of the sheet 4', the sheet 4 'inevitably comes into contact with both corners Gc on the way.
It is considered that when the contact is excessive, the overload state is caused. Of course, such an overload state can be avoided by taking measures such as increasing the size of the motor or increasing the thickness of the mast 3 ′ in order to secure rigidity.
There is a problem that the size of the apparatus is unavoidable, and that the space for the loading space is reduced, the cost is increased, and the original cargo handling work is obstructed.

[0006]

[Technical Problem Attempted to Be Developed] The present invention has been made in view of such a background, and has been made to avoid an excessive contact state between a sheet and a luggage group without increasing the size of the apparatus itself. This is an attempt to develop a new seating method and a seating device for performing the same.

[0007]

According to a first aspect of the present invention, there is provided a seat hanging method, wherein two masts are provided so as to be able to be lifted opposingly near an outer edge of an appropriate loading section on which a load is placed. While tying the free ends of the opposing masts with a suspension cable, holding one side edge of the seat against the suspension cable, the mast is further laid down from the laid down state to the opposite side from the first laid down position,
In the method in which a protective sheet is placed on the luggage in the loading section, at the start of seating, the seat base end side and the free end side are rotated with the rotation of the seat base end held by the suspension cable. Rotate while holding the seat central part almost in the middle of
The mast is pivoted to the upper part of the cargo section, releasing the lift of the central part of the seat while avoiding excessive contact between the seat and the corners of the luggage group, and then turning only the seat base end side It is characterized by having been made to be.
ADVANTAGE OF THE INVENTION According to this invention, when a sheet | seat is hung on the baggage piled up in the material storage of a construction site, a vehicle bed, etc., the excessive contact of a sheet and a baggage can be eliminated, without enlarging an apparatus itself. For this reason, the sheet hanging operation can be performed more reliably and smoothly.

[0008] In addition to the requirement of the first aspect, the seat hanging method according to the second aspect is characterized in that the loading section is a vehicle bed. According to the present invention, for example, the sheet hanging operation can be easily and reliably performed on an open deck type truck bed, and the usability of such a truck can be further improved. Also, the limited cargo space can be used to the maximum.

According to a third aspect of the present invention, in addition to the requirements of the first or second aspect, the operation of releasing the holding of the central portion of the seat is performed by an operator on the ground. It consists of. According to the present invention, the work for releasing the holding of the central portion of the seat can be performed by the operator on the ground, so that the work at a high place which involves a considerable amount of danger can be thoroughly eliminated. In addition, since the worker always works on the ground, the reduction and efficiency of the work can be achieved.

[0010] Further, a seat hanging method according to a fourth aspect is characterized in that, in addition to the requirements of the first, second or third aspect, the mast is extendable and contractible.
According to the present invention, since the mast is expandable and contractible, the turning radius of the mast, that is, the seating action height can be appropriately adjusted, so that the size of the luggage is limited and the way of loading the luggage is almost always restricted. Absent.

According to a fifth aspect of the present invention, in addition to the requirements of the second, third, or fourth aspect, the rotating device for rotating the mast is at least a rotating device on the rear side of the vehicle carrier. In particular, it can be attached and detached without a tool. According to the present invention, since the rear pivoting device is detachable, the original cargo handling work is not hindered, and the loading and unloading of the load can be efficiently performed. In addition, since no special tools are required for this attachment and detachment, work can be easily performed anywhere.

According to a sixth aspect of the present invention, in the seat hanging device, two masts provided opposite to each other in the vicinity of an outer edge of the appropriate loading portion on which a load is placed are connected to the free ends of the masts. A luggage unit, comprising a suspension cable, a seat having one side edge held by the suspension cable, and a rotating device that causes the mast to fall from a lying state to an opposite side from a first lying position through an upright state, In a device in which a protective sheet is placed on the upper part, the device lifts up a central portion of the sheet approximately halfway between the base end of the seat held by the suspension cable and the free end of the seat facing the base. And a lifting device for releasing the holding of the central portion of the seat during the rotation of the mast. It is intended. ADVANTAGE OF THE INVENTION According to this invention, when a sheet | seat is hung on the baggage piled up in the loading part, since the holding | maintenance of a sheet | seat center part and the holding | release of the holding | maintenance can be performed easily and reliably by the lifting device, the overcontact of a sheet and a luggage group is avoided. The user can smoothly work on the seats.

According to a seventh aspect of the present invention, in addition to the requirement of the sixth aspect, the lifting device further comprises:
A plurality of hanger suspenders that sandwich a sheet central portion by a pair of rotatably supported holding pieces, a connecting cable that connects the plurality of hanger suspenders at appropriate intervals, and a connecting cable that extends over a mast. And a holding device for locking. According to the present invention, since the lifting device can be simply configured, maintenance can be easily performed, and the weight and cost of the entire seat hanging device can be reduced.

[0014] In the seat hanging device according to the eighth aspect, in addition to the requirements described in the seventh aspect, the suspension cable and the connecting cable avoid contact with a luggage group while being suspended from the mast. As described above. According to the present invention, since the suspension cable and the connection cable are not stretched in a state of tension with respect to the mast, the tendency of the mast to fall down is reduced. Therefore, the mast can rotate more smoothly.

According to a ninth aspect of the present invention, in addition to the requirement of the seventh or eighth aspect, the hanger suspender can be easily operated by a worker in a state where a connecting cable is suspended and a clamping force is applied. The connection position between the connecting cable and the holding piece is set so that the holding portion can be opened. According to the present invention, when the connecting cable is suspended from the mast, a holding force is applied to the hanger suspender, and the holding portion is closed. However, the holding force is not strong, and the operator holds the holding piece. Since the sheet can be easily released by being pinched, the operation of holding the sheet central portion and the operation of releasing the holding can be performed smoothly and reliably.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. In the description, first, the sheet hanging apparatus 1 that performs the present invention will be described, and then the operation of the apparatus will be described, and the sheet hanging method of the present invention will be described. In addition, the loading section C described in this specification includes not only a material storage area such as a factory or a construction site, but also a loading platform of an open deck type truck.
In particular, when loading a load on such a truck bed and putting a protective sheet on it, the worker often climbs to a position above a group of loads G that has been piled high, and the work is extremely heavy. Not only that, but also work involving dangers such as dropping, there has been a long-awaited need for a method of solving the problem. Therefore, in the following description, the loading section C will be described using a vehicle bed as an example. In general, the luggage group G in which individual luggage are stacked is generally loaded in a square shape when viewed from the rear of the vehicle as shown in FIG. 1, for example. Two upper portions extending in the direction are defined as corners Gc.

In the seat hanging device 1 according to the present invention, the work of hanging the sheets on the luggage loaded in the loading section C can be performed while the worker himself is always on the ground. As an example, as shown in FIG. 1, this device is provided with a rotating device 2 provided near the outer edge of the loading portion C, that is, in front of and behind the vehicle carrier, and the device 2 is capable of being lifted up and down by the rotating device 2. Two masts 3 supported,
A seat 4 for substantially covering the luggage, a suspension cable 5 for connecting the free ends of the mast 3 and supporting one side edge of the seat 4, an abutment 7 for preventing the mast 3 from falling down, The apparatus includes a tuck-up device 8 for holding a substantially central area between the holding base end side and the free end side facing the holding end in a tucked-up state. Hereinafter, each component will be described.

First, the rotating device 2 will be described. In this apparatus, the mast 3 is laid down from a laid state to an upright state before and after the vehicle bed and further to the side opposite to the first laid position. Here, when it is necessary to distinguish the rotating device 2 from front to back, the front device is denoted by 2F and the rear device is denoted by 2R, and is distinguished. As shown in FIGS. 2 and 3 by way of example, the front rotating device 2F includes a motor M, an input sprocket 22, a deceleration sprocket 23, and the like assembled to a frame member 21 and transmits drive by a chain 24. Further, a rotation shaft 25 to which the base end of the mast 3 is attached is formed at the rotation center of the speed reduction sprocket 23. In this embodiment, the front turning device 2F is accommodated in a narrow space between the cabin and the loading platform as shown in the figure.

As shown in FIGS. 2 and 3 as an example, the rotating device 2R at the rear has a motor M permanently installed at the lower part of the loading platform.
The components other than the motor M are configured to be easily detachable by a simple insertion connection between the pipe and the pin. For this reason, an adjust shaft 26 for transmitting the rotation drive from the motor M is formed at the rotation center of the input sprocket 22 in the rear rotation device 2R. In addition, since the rear rotation device 2R is detachable, the frame 2 is divided into two parts, for example, a frame member 21 and other units so that the worker can easily carry the unit. Can be reduced in weight. By configuring the front and rear rotating devices 2 as described above, it is intended to maximize the limited space of the loading space.

Next, the mast 3 supported by the rotating device 2 will be described. In this device, the base end is attached to the turning device 2 and turns, and the opposite free end is connected by a suspension cable 5 described later. As shown in FIG. 1 as an example, the mast 3 has a structure in which a sub-frame 32 is inserted into a main frame 31 formed in a rectangular pipe shape. The working radius of the seat hook is configured to be adjustable by being expanded and contracted by the like. In addition, the mast 3 can adopt not only the double fitting structure as described above, but also a form having a multiplex structure of three or more, or a form in which several portions can be freely bent and the entire length thereof can be appropriately adjusted. Furthermore, when a material storage area such as a factory or a construction site is used as the loading section C,
It is possible to configure the mast 3 with a simple pole-shaped single member.

Next, the sheet 4 will be described. This covers the cargo loaded in the loading section C. In the present invention, one side edge of the seat 4 is held by a suspension cable 5 described later, and the cable is attached to the cable with the rotation of the mast 3. From the held side edges, the actual seating is performed so as to sequentially wrap the luggage group G.
For this reason, the side edge held by the suspension cable 5 is the seat base end 4a, the portion in the free state opposed thereto is the seat free end 4b, and the portion almost halfway between the base end and the free end is the seat. It is defined as the central part 4c.
In addition, the seat central portion 4c is, in other words, the seat 4
Becomes a portion located substantially above the loading section C when the baggage group G is completely hung.

In this embodiment, the held portions 41 such as eyelets are formed at appropriate intervals on the base end side 4a of the seat, and the held portions 41 can be easily attached to the suspension cable 5. Is provided with a carabiner K. Further, in the present invention, the sheet base end 4a is pulled up by the rotation of the mast 3, and the sheet central portion 4c is also lifted up to the middle thereof, so that the seat central portion 4c is also covered with eyelets or the like. The holding part 42 is formed. The held portion 42
Is held by a hanger suspender 80 described below,
A ring R is provided to facilitate the release. Note that the held portion 42 of the seat central portion 4c is
A plurality of seats are formed substantially parallel to the seat base end side 4a, that is, substantially along the longitudinal direction of the vehicle, and the interval is, for example, about 1 to 1.5 m.

Next, the suspension cable 5 will be described. This is to support the seat base side 4a in order to prevent the seat 4 from excessively contacting the luggage at the time of the sheet hanging operation, and a light-weight and high-strength wire rope or aramid fiber is used. Applied. The suspension cable 5 is provided with hooks F as shown in FIG. 4 at both ends as an example. By hooking the hook F to the free end of the mast 3, the suspension cable 5 can be hung in a somewhat hanging state. It is what is done. Of course, when one end of the suspension cable 5 is always connected to the free end of the mast 3, the hook F is attached to only the other end. In this embodiment, the suspension cable 5 and the seat 4 are separately provided, and a method of connecting them with a plurality of carabiners K is employed. For example, the suspension cable 5 is directly sewn to one side edge of the seat 4, so to speak. An integral configuration is also possible.

Next, the contact member 7 constituting the deflection receiving mechanism of the mast 3 will be described. As described above, the weight of the suspension cable 5, the seat 4, and the like is added to the mast 3 when the seat is actually seated, so that the mast 3 necessarily has some inward inclination as a reaction to the mast 3. Become. For this reason, the abutting member 7 has a function of preventing the mast 3 from falling down, and an oil plate as shown in FIG. 3 is applied as an example. This is provided inside the masts 3 of each other, and is configured to be able to smoothly rotate the mast 3 while abutting on the frame wall surface of the rotating device 2. In addition, a rolling roller or the like can be applied as the contact body 7. However, in the present invention, the suspension cable 5 does not need to be tensioned as in Japanese Patent Laid-Open No. 2000-6666 due to holding not only the seat base end side 4a but also the seat center portion 4c. Mast 3
Is also expected to decrease in the tendency to collapse. Therefore, if the mast 3 can rotate smoothly without the need for the contact body 7, the contact body 7 can be omitted from the first place.

Next, the lifting device 8 for holding the sheet central portion 4c will be described. The hanger suspenders 80 include a plurality of hanger suspenders 80 that sandwich a ring R attached to the seat 4 as an example.
0, and a holding device 82 for locking the connecting cable 81 wound around the mast 3. The hanger suspender 80 includes a pair of holding pieces 83, and a substantially intermediate position between the holding pieces 83 is used as a common rotation fulcrum. The part 85 is constituted. As shown in an enlarged view of FIG. 5 as an example, the holding portion 85 is formed in an inclined shape so as to protrude from the working end side, so that the ring R held by the holding portion 85 can be more easily removed. Ingenuity is given.

The connecting cable 81 connects the holding pieces 83 and has substantially the same configuration as the suspension cable 5, but one end of the connecting cable 81 is held by a holding device 82 described later. . The connection cable 81 is also suspended from the mast 3 similarly to the suspension cable 5, and the hanger suspender 80 is configured to close the holding portion 85 in this state. That is, the hanger suspender 80 receives the own weight of the connecting cable 81, the own weight of another hanger suspender 80 other than itself, the tension of the holding device 82, and the like, and thereby the holding force is applied. However, if the holding force is too strong, the holding portion 85 cannot be easily opened even if the operator grips the holding piece 83, so that in this embodiment, such a situation is avoided. For this reason, the connection position between the holding piece 83 and the connection cable 81 is appropriately set, and the connection position is considered so that the worker can easily open the hand by hand while maintaining an appropriate holding force. Specifically, as the connection position between the holding piece 83 and the connection cable 81 is farther from the fulcrum, even if the same holding force is applied, the holding effect is increased, but the force required for the worker to open is also increased. In some cases, the workability is significantly deteriorated.

The holding device 82 locks the connecting cable 81 to maintain this state after suspending the connecting cable 81 with respect to the mast 3, and as an example, as shown in FIG. Is attached to the free end of the device via a ring or the like. And this holding device 82
Comprises a passive piece 86 for receiving the connecting cable 81, and a rotating piece 87 pivotally supported so as to be able to rotate only about 90 ° with respect to the passive piece 86. The passive piece 86 and the rotating piece 87 form a sandwiching portion 88 that sandwiches the connection cable 81. The interval between the sandwiching portions 88 depends on the rotating state of the rotating piece 87. It is changed as appropriate. That is, when the connecting cable 81 is pulled or loosened, the rotating piece 87 is extended so as to widen the interval between the sandwiching portions 88 as shown in FIG.
Is turned to set it in a free state.
When maintaining the suspended connecting cable 81, FIG.
As shown in (b), the pivot piece 87 is rotated so as to reduce the interval between the sandwiching portions 88, and the connecting cable 81 is sandwiched and locked, thereby preventing the movement of the connecting cable 81. That is, when the connecting cable 81 is held, the pulled connecting cable 81 tries to return in the loosening direction. However, in a state where the rotating piece 87 is in contact with the connecting cable 81, Deviation, connecting cable 8
1 is held between the passive piece 86 and the passive piece 86 to maintain the suspended state.

The pivoting piece 87 is formed in advance with a release base end 90 for rotating the sandwiching portion 88 so as to expand the holding portion 88 in order to release the holding of the connecting cable 81. A release rope 91 for performing a turning operation of the camera is attached. In this embodiment, since the center of rotation of the mast 3 is formed at a position higher than the bed, the free end side of the mast 3 is lower than the center of rotation in the initial falling state. The holding device 82 is attached to the free end side of the mast 3. However, in a case where the center of rotation of the mast 3 can be formed at a height that can be reached by a worker on the ground, for example, the connecting cable 81 passing through the free end is connected to the vicinity of the base end of rotation of the mast 3. The holding device 82 can be attached to the rotation base end side. In this case, since the worker can directly operate the locked state and the free state of the holding device 82 from the ground, it is not always necessary to provide the rotation base 87 with the release base end 90, the release rope 91, and the like.

Next, the operation of the seating apparatus 1 according to the present invention will be described, and the seating method of the present invention will be described. In the description, a state in which the seat 4 is folded and the rear rotating device 2R is removed will be referred to as an initial state, and a state in which the mast 3 has been rotated and the sheet 4 has been placed on the luggage group G will be referred to as a final state. (1) Initial state In the initial state, as shown in FIG. 2 as an example, the front turning device 2F is always provided in the narrow space between the cabin and the loading portion C with the mast 3, but is turned rearward. Device 2R
Is in a state of being removed from the loading section C except for the motor M. At this time, the mast 3 is set in a contracted state in which the sub-frame 32 has been completely inserted into the main frame 31 both before and after. In the embodiment shown in FIG. 2, the rear rotating device 2R and the mast 3 are shown as always connected, but they may be appropriately divided depending on the storage space, the weight of the members, and the like. In this initial state, the seat 4 and the suspension cable 5 are stored separately. However, they may be always connected by a carabiner K or the like and stored in an appropriate place. Furthermore,
As described above, the main purpose of configuring the front rotating device 2F in a narrow space and detachably configuring the rear rotating device 2R is to make full use of the limited cargo space effectively, In order to prevent the cargo handling work from being hindered by the rear turning device 2R. Therefore, when the loading portion C can be set in a relatively wide range such as on the ground, it is not always necessary to adopt such a structure.

(2) Preparation for seating (holding of the base end side of the sheet) After loading of the load on the loading section C is completed, preparation for seating is performed. In this preparation work, first, the rear turning device 2R is attached to the vehicle. This mounting operation can be performed very simply by a simple plug-in connection between the pipe and the pin without requiring any special tools. After the installation of the rotating device 2 and the mast 3 is completed, the suspension cable 5 is suspended with respect to the mast 3 in the initial falling state, and the seat base side 4a is connected to the suspension cable 5 bridged over the mast 3. To be attached.

(3) Preparation for seating (tack-up of the central part of the sheet) With such an operation, the central part 4c of the sheet is also held in the tucked-up state by the hanger suspender 80. Specifically, the connection cable 81 connecting the plurality of hanger suspenders 80 is connected to the suspension cable 5.
After being hung on the mast 3 so as to line up with this, this bridged state is maintained by the holding device 82. While the connecting cable 81 is suspended, the hanger suspenders 8
0, the tension by the holding device 82 and the connection cable 81
Is applied, a clamping force is applied, and the clamping portion 85 is closed. The clamping force is set to a strength that can be easily opened by the operator. Therefore, the operator can easily and sequentially open the hanger suspenders 80 by hand, and the ring R of the held portion 42 can be smoothly held.

In the above description, the sheet base side 4
Although it has been described that the seat central portion 4c is raised and held after holding the position a, the connecting cable 81 may be suspended from the mast 3 together with the suspension cable 5. FIG. 7 (a) shows an example of the completed lifting of the seat central portion 4c.
Here, two or three rings R are sandwiched by one hanger suspender 80, but it is of course possible to adopt a form in which one ring R is sandwiched. The point is that any number of positions may be held as long as the sheet central portion 4c can be held in the raised state. Further, in this embodiment,
After the mast 3 is extended, the sheet base side 4a and the sheet central portion 4c are held. However, when it is difficult to secure a space for extending the mast 3, the sheet base side 4a, After holding the seat central portion 4c,
A form in which the mast 3 is extended may be employed.

(4) Seat Hooking (Start of Rotation of Mast) When the above preparation work is completed, the seat hoop is started. In this sheet hanging operation, the front and rear rotation devices 2 are driven by wireless remote control or the like, and the mast 3 is gradually rotated. Specifically, as shown in FIGS. 7 and 8, the mast 3 is caused to fall from the initial falling state to the upright state, and finally to the opposite side of the initial falling position. In the meantime, in this embodiment, when the mast 3 becomes almost upright, the rotation of the mast 3 is temporarily stopped, and the lifting and holding of the sheet central portion 4c is released.

(5) Release of the lifting of the central portion of the seat To release the holding of the central portion 4c of the seat, the operator pulls the release rope 91 from the ground and connects the connecting cable 8
1 to release the locked state, whereby a part or most of the connecting cable 81 is temporarily placed on the upper part of the luggage group G, and greatly increases the holding action of the hanger suspender 80. The contribution of the tension of the holding device 82 is eliminated or greatly reduced. Of course, in this state, the holding portion 85
Is released, the holding of the seat central portion 4c is naturally released. However, when the lock of the connecting cable 81 is released, the holding tendency itself is already eliminated or greatly reduced even if the holding portion 85 is not opened. The holding section 8
When the mast 3 is turned again, the ring R is detached so as to be guided by the inclination of the holding portion 85, and the holding of the seat central portion 4c is completely released. When the lock by the holding device 82 is released, the connecting cable 81 may be completely disengaged from the pinching portion 88, or a stopper structure that does not come off from the pinching portion 88 is provided at an appropriate position in advance. You can keep it.

Further, in the present invention, the sheet central portion 4c is held in a lift-up state in the preparation stage, and this holding is released in the middle of the seat hooking. Excessive contact with the corner Gc of
Or to avoid being caught excessively. Therefore, the timing for releasing the holding of the sheet central portion 4c is not necessarily limited to the time when the mast 3 is in the upright state. For example, the sheet central portion 4c is moved to the first corner Gc with the rotation of the mast 3. Can be performed after passing through. That is, the timing of releasing the holding of the sheet central portion 4c may be performed at any time as long as at least the situation where the sheet 4 comes into contact with both corners Gc can be avoided. However, mast 3 is the first corner Gc
When the holding of the sheet central portion 4c is released immediately after passing through, it is necessary to consider that the sheet central portion 4c does not slip down to the seat hanging start side by its own weight.
Furthermore, in this embodiment, when releasing the holding of the sheet central portion 4c, the form in which the rotation of the mast 3 is temporarily stopped is adopted, but if possible, the mast 3 may be simultaneously rotated while being rotated. I do not care.

(6) Seat hook (after release of lifting of the central portion of the seat) After release of lifting of the central portion of the seat 4c, the mast 3 is rotated again as shown in FIG. In addition, when the lifting is released, the separated sheet central portion 4c is released.
Is placed on the upper part of the luggage group G, and the central portion is sequentially pulled down from the seat base side 4a and lowered as the mast 3 rotates. After the holding of the seat central portion 4c is released as described above, the connection cable 81 is partially or almost entirely placed on the upper part of the luggage group G. Along with, it is lowered. When the mast 3 reaches the final falling position, the seat 4 wraps the luggage group G inward, and the suspension cable 5 and the connecting cable 81
After being removed from the mast 3, the periphery of the sheet 4 is fixed to the loading portion C. Along with such an operation, the mast 3 of the sheet hanging device 1 is reduced, the rear rotating device 2R and the like are removed and stored in an appropriate place, and a series of sheet hanging operations is completed.

[0037]

[Other Embodiments] The present invention is based on the above-described embodiment as one basic technical idea, but the following modifications are conceivable. That is, in the above-described embodiment, a configuration is adopted in which the held portion 42 is held via the ring R in order to hold the sheet central portion 4c. However, for example, as shown in FIG. The held portion 42 may be directly pinched by the hanger suspender 80 without using the hanger suspender 80. In this case, it is not necessary to provide an eyelet or the like in the held portion 42, but it is preferable to apply an appropriate non-slip processing or to give elasticity to the working tip side of the holding piece 83. If the sheet 4 can be directly grasped by the hanger suspender 80 and the sheet central portion 4c can be held, the held portion 42 itself can be omitted.

In the above-described embodiment, two cables, ie, the suspension cable 5 and the connection cable 81, are suspended from the mast 3, but a single form can be used. is there. That is, in this case, as an example, as shown in FIG.
a holding portion 85 such as a holding piece 83 or the like.
It is intended to be directly attached to a part which is not affected by the opening and closing of the door. This is because the hanger suspender 80 holds the sheet base end 4a even after the holding of the sheet central portion 4c is released. In this case, the connecting cable 81 must be prevented from slipping out of the holding device 82 in advance, and after releasing the holding of the central portion 4c of the seat, the connecting cable 8 is moved to such an extent as to avoid excessive contact with the load.
It is desirable that the pulling member 1 be pulled again. Further, in the embodiment shown in FIG. 10, the sheet base end side 4 a is illustrated to be attached to the holding piece 83 by the carabiner K, but may be attached to the connection cable 81.

Further, in the basic embodiment, the front-rear dimension of the loading portion C corresponding to the longitudinal direction of the vehicle and the length of the seat 4 (for example, the seat base side 4a) are illustrated to be substantially the same length. However, in consideration of the protection of the luggage group G or the work of fixing the sheet 4 to the truck bed after the luggage group G is wrapped, it is naturally more convenient for the sheet 4 to be longer than the front and rear dimensions of the loading portion C. In consideration of such a case, it is possible to form the free end sides of both the front and rear masts 3 so as to protrude from the loading portion C, as shown by the two-dot chain line in FIG.

Although not shown, if the seat central portion 4c is held at three places in the longitudinal direction of the vehicle as shown in the basic embodiment, for example, three connecting cables 81 are provided in accordance with this. Is possible. In this case, the holding release of the three connecting cables 81 can be performed with a time lag, and the seat central portion 4c can be released.
, The holding release can be performed more smoothly.

[0041]

According to the seat hanging method according to the first aspect, when the seat 4 is hung on the luggage loaded in the loading section C such as a material storage at a construction site or a vehicle bed, the size of the apparatus itself is increased. No, the corner Gc of the seat 4 and the luggage group G
Excessive contact can be eliminated. For this reason, the sheet hanging operation can be performed more reliably and smoothly.

According to the seat hanging method of the second aspect, for example, the seat hanging operation can be easily and reliably performed on an open deck type truck bed, and the usability of such a truck can be further improved. Also, the limited cargo space can be used to the maximum.

Further, according to the seat hanging method of the third aspect, since the work of releasing the holding of the seat central portion 4c can be performed by the ground operation by the operator, the work at a high place which involves a considerable danger is thoroughly performed. Can be resolved. In addition, since the worker always works on the ground, the reduction and efficiency of the work can be achieved.

According to the seat hanging method of the fourth aspect, since the mast 3 is stretchable, the turning radius of the mast 3, that is, the action height of the seat hanging can be appropriately adjusted.
There is little restriction on the size of the luggage or restrictions on how to load the luggage.

According to the seat hanging method of the fifth aspect, since the rear turning device 2R is detachable, the original cargo handling work is not hindered, and the loading and unloading of the load is efficient. Can be done. In addition, since no special tools are required for this attachment and detachment, work can be easily performed anywhere.

According to the seat hanging device of the sixth aspect, when the seat 4 is hung on the load loaded on the loading portion C, the holding and releasing of the seat central portion 4c can be easily and reliably performed by the lifting device 8. Sheet 4
The work of hanging a seat can be performed smoothly while avoiding excessive contact with the load group G.

According to the seat hanging device of the seventh aspect, since the buckling device 8 can be simply configured,
Maintenance can be easily performed, and the weight and cost of the entire seat hanging device 1 can be reduced.

According to the seat hanging device of the eighth aspect, since the suspension cable 5 and the connecting cable 81 are not stretched in tension with respect to the mast 3, the tendency of the mast 3 to fall down is reduced. Therefore, the mast 3 can rotate more smoothly.

According to the ninth aspect of the present invention, when the connecting cable 81 is suspended from the mast 3, a holding force is applied to the hanger suspender 80, and the holding portion 85 is closed. Since the force is not strong and the operator can easily open the pinching piece 83 by pinching it, the operation of holding the sheet central portion 4c and the operation of releasing the holding can be performed smoothly and reliably.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an operation state of a seat hanging device according to the present invention.

FIG. 2 is a side view of the vehicle, showing an operating state of the vehicle.

FIG. 3 is a side cross-sectional view of the front and rear rotating devices as viewed from the side of the vehicle.

4A and 4B are explanatory diagrams showing a state where a suspension cable is suspended on a mast, and an explanatory diagram showing a state where a seat is connected to a suspension cable by a carabiner.

FIG. 5 is a perspective view showing a state in which a sheet central portion is held in a raised state, and an explanatory view showing an enlarged hanger suspender.

FIG. 6 is an explanatory diagram showing a free state and a fixed state of the holding device in comparison.

FIG. 7 is an explanatory diagram showing an operation mode of the seat hanging device in a stepwise manner from the back of the vehicle.

FIG. 8 is an explanatory diagram showing an operation mode of the seat hanging device in a stepwise manner from the back of the vehicle.

FIG. 9 is an explanatory view showing an embodiment in which a sheet is directly pinched by a hanger suspender.

FIG. 10 is an explanatory diagram showing an embodiment in which the suspension cable and the connection cable are integrated into one.

FIG. 11 is an explanatory view showing a conventional method of supporting only one side edge of a sheet and hanging the sheet.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 seat hooking device 2 rotating device 2F rotating device (front) 2R rotating device (rear) 3 mast 4 seat 4a sheet base end 4b seat free end 4c seat central portion 5 suspension cable 7 contact body 8 Apparatus 21 Frame member 22 Input sprocket 23 Reduction sprocket 24 Chain 25 Rotating shaft 26 Adjust shaft 31 Main frame 32 Subframe 41 Held part 42 Held part 80 Hanger suspender 81 Connecting cable 82 Holding device 83 Nipping piece 85 Nipping part 86 Passive Piece 87 Rotating piece 88 Nipping part 90 Release base end 91 Release rope C Loading part F Hook G Luggage group Gc Corner K Carabiner M Motor R ring

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[Procedure amendment]

[Submission date] February 24, 2000 (200.2.2
4)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0003

[Correction method] Change

[Correction contents]

[0003] For this reason, so-called open deck type trucks having an open cargo portion are still being used as transport vehicles. By the way, when using such a truck, the sheet hanging work is, of course, often performed at a high place where the worker climbs to the top of the stacked luggage,
The work was rather dangerous. Therefore, in the present onset
The clear person tried to develop such a sheet hanging operation automatically, and came to invent the contents of a patent application of Japanese Patent Application Laid-Open No. 2000-6666 "Sheet hanging device". In this system, a liftable mast is installed before and after the loading section, and the free end of the mast is connected with a suspension cable, which supports one side edge of the seat. The seat can be hung accordingly.

Claims (9)

[Claims] At least two masts are provided so as to be able to be lifted up and down in the vicinity of an outer edge of an appropriate cargo portion on which a load is placed, and the free ends of the opposed masts are connected by a suspension cable. One side edge of the sheet was held against the cable, and the mast was further laid down from the laid state through the upright state to the side opposite to the first laid down position, so that a protective sheet was placed on the luggage in the loading section. In the method, at the time of starting the seat hooking, while the seat base held by the suspension cable is pivoted, the seat central portion almost halfway between the seat base side and the free end side is held in a lifted state. Rotate the mast to the position above the loading section, and release the lifting of the central part of the seat while avoiding excessive contact between the seat and the corners of the luggage group. And thereafter rotating only the base end side of the seat. 2. The method according to claim 1, wherein the loading section is a vehicle carrier. 3. The method according to claim 1, wherein the operation of releasing the holding of the central portion of the seat is performed by a ground operation of an operator. 4. The method according to claim 1, wherein the mast is stretchable. 5. The seat according to claim 2, wherein the rotating device for rotating the mast can be attached and detached at least on the rear side of the vehicle carrier without requiring any special tools. Hanging method. 6. For an appropriate loading section on which a load is placed,
Two masts provided facing each other near the outer edge thereof, a suspension cable connecting the free ends of the masts, a sheet having one side edge held by the suspension cables, and the masts are moved from a lying state to an upright state. In addition, it has a rotating device that falls down to the opposite side from the initial falling down position,
In a device in which a protective sheet is placed on the load in the loading portion, the device is substantially intermediate between a seat base end held by a suspension cable and a seat free end facing the seat. A seat hooking device, comprising: a lifting device that holds the central portion of the seat in a raised state and releases the holding of the central portion of the sheet during the rotation of the mast. 7. A lashing device comprising: a plurality of hanger suspenders configured to hold a sheet central portion by a pair of rotatably supported holding pieces; and a connection for connecting the plurality of hanger suspenders at appropriate intervals. 7. The seat hooking device according to claim 6, further comprising a cable and a holding device for locking the connecting cable hung over the mast. 8. The seat hanging apparatus according to claim 7, wherein the suspension cable and the connection cable are suspended so as to avoid contact with a luggage group while being suspended from a mast. 9. In the hanger suspender, a connection position between the connection cable and the holding piece is set so that an operator can easily open the holding portion when the connection cable is suspended and a holding force is applied. 9. The seat hanging apparatus according to 7 or 8, wherein: