JPH0532308A - Hook for moving - Google Patents

Abstract

(57) [Summary] [Purpose] For example, when the shape of the receiving part for stopping the moving tool is diverse, such as a manhole cover,
A single tool acts on the receiving parts of all these shapes to perform a predetermined moving operation. [Structure] An extension arm portion 10 having a rotation support point 9 at one end with respect to an appropriate moving member and capable of rotating within a predetermined range, and the other end of the extension arm portion 10 being substantially orthogonal to this. The insertion projection 11 is formed to extend in the direction, and the insertion projection 11 is provided with a locking projection 12 on the side of the rotation support point 9.

Description

Detailed Description of the Invention

[0001]

[Object of the Invention]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving hook suitable for moving a member such as a manhole cover having a hole-shaped receiving portion for locking a moving tool. The applicant of the present invention has already disclosed in JP-A-59-258.
This is a divisional application of the invention disclosed in No. 799 “Opening / closing device for manhole cover” (hereinafter referred to as the original application).

[0002]

BACKGROUND OF THE INVENTION The present applicant has proposed a manhole cover opening / closing device in the original application. This one discloses a switchgear that can be used universally for these, in view of the wide variety of locking holes of the lifting tool formed in the manhole cover, and one of the main parts of it is a hanging hook. In view of the fact that a useful device can be obtained by combining other cargo handling tools and the like, the division covers a divisional application in order to separately acquire the right for this portion.

Prior to the explanation of the applicant, the background of the original application will be briefly described. That is, one of the purposes in the original application was to develop a manhole cover opening / closing device having hook holes of any shape. That is, conventionally, as shown in FIG. 10, various types of hook holes are formed in the manhole cover, and the manhole cover 30 is provided with hook holes 31a to 31f near its periphery. Needless to say, the explanatory view of FIG. 10 shows a single manhole cover 30 for the sake of convenience, with various hook holes 31 (when the hook holes of the individual shapes are not specifically referred to, the hook holes 31 are designated by the reference numerals). However, naturally one or two of these hook holes 31 are selectively formed in one manhole cover.

To further explain these, the hook holes indicated by reference numerals 31a and 31b in FIG. 10 are of the British standard, and the locking projections 46 of the hanging hooks 45 also shown on the diameter line of the circular hole are shown. An insertion hole for insertion is formed, and the respective drilling directions are different by 90 °. Further, 31c is formed by scooping the surface of the lid and is fixed to the central portion of the scoop so that the surface does not project. Further, 31d is a so-called hatch type, in which a handle that can be pulled up is attached to the lid. These hook holes 31c and 31
d is only required to be able to hang a hook on these locking portions, and for example, as shown in the drawing, the lifting work is performed by the hanging hook 45 having the hook portion 47 whose tip is formed in an arc shape. ..

As described above, with respect to the hook holes indicated by reference numerals 31a to 31d, the manhole cover 30 can be easily pulled up, but the hook holes indicated by reference numerals 31e and 31f are so-called pick holes. Widely used in water and sewage and telephone facilities in the United States, it is simply a circular hole or a porous one. As the name implies, the hook holes 31e and 31f called pick holes are used to insert the tip of a pickaxe for work into this hook hole and operate the handle of the pickaxe to open and close the manhole cover 30. It was However, as a matter of course, in such a pick hole type hook hole, the pickaxe is not always sufficiently engaged, and its workability cannot be denied. The original application attempts to develop a new device that can be applied to other types of hook holes on the assumption that it can handle pickhole type hook holes, which are particularly difficult to handle as described above.

[0006] As one of the main parts of the idea in the original application, there is a hook device that directly acts on the hook hole (referred to as "hanging hook" in the original application). Although it is a thin tubular member that can be inserted into the hook hole, it surely engages the manhole cover during the pulling operation and enables the pulling.

[0007]

[Technical Items Attempted to Divide] Here, paying attention to the fact that the "hook device" in the original application acts extremely usefully on various hole-shaped receiving portions prepared for movement,
The divisional application is attempted with the specific structure of this part as the content of rights.

[0008]

[Constitution of the invention]

That is, the moving hook device according to the invention of the present application is a locking member that is connected to an appropriate moving member at a pivotal support point orthogonal to the moving direction. The projecting arm section and an inserting section extending from the projecting arm section in a direction opposite to the retracting direction and away from the rotation supporting point, and locked to the rotation supporting point side of the inserting section. The present invention is characterized in that it is provided with a portion, and thus aims to achieve the above object.

[0009]

In the moving hook of the present invention, the inserting portion is provided to the supporting member for supporting the hook via the protruding arm portion, so that the inserting portion is centered on the rotation supporting point. The insertion section and the overhanging arm section are rotated by their own weight, and also rotated by the elastic force of the set spring, the insertion section is tilted, and the locking section formed on the insertion section is attached to the edge of the receiving section of the insertion section. Engage and allow its movement.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The moving hook of the present invention will be specifically described below with reference to the drawings. As the order of description, the manhole cover opening / closing device disclosed in the original application, which is an example to which the moving hook of the present invention is applied, is taken as an example, and the outline of the device and the structure of the moving hook of the present invention will be described first. Next, another application example will be described.

I. An embodiment applied to a manhole cover opening / closing device Reference numeral 1 is a manhole cover opening / closing device to which a moving hook according to the present invention is applied, and includes a lever rod-shaped main body 2, a moving hook 3 according to the present invention, and a fulcrum portion 4. It is configured as a main member. First, the main body 2 is, for example, a lever-shaped rod bent in an inverted V shape, and is formed of, for example, a different-diameter pipe having a hexagonal outer peripheral cross section and a hollow central arc. Of course, the reason why such an iron bar having a hexagonal cross section is used is to consider the convenience of mounting the fulcrum portion 4 and the like as described later, and the cross sectional shape is not necessarily limited to the above. Of course, other square pipes or round pipes may be used. The point is that the manhole cover 30 may be made of a material having a strength sufficient to withstand the opening / closing operation.

One end of the main body 2 serves as a force point 2a, and a handle 2b is attached to the main body 2 and a range from the bending point on the other end side to the tip side is used as a fulcrum adjusting portion 2c. The end of the main body 2 on the side of the fulcrum adjusting portion 2c serves as the working end, and the support bracket 6 of the moving hook 3 is provided at the tip of this end. As an example, this is composed of a hexagonal fixing portion 7 which is externally fitted to the main body 2 and a forked leg portion 8 which extends in parallel downward from here. The lower ends of the pair of left and right leg portions 8 are formed. The moving hook 3 of the present invention is rotatably attached to the pin via a pin-shaped turning support point 9.

The moving hook 3 is substantially L-shaped as a whole, and has a protruding arm portion 10 to which one end thereof is attached to the rotation support point 9 and a free end side of the protruding arm portion 10. It has a rod-shaped insertion portion 11 that is bent substantially at a right angle, and further, a locking projection 12 that projects toward the rotation support point 9 is formed at the lower end of this insertion portion 11. Of course, the moving hook 3 may have another specific shape, but the point is that the rotation support point 9 is provided at a position eccentric with respect to the longitudinal center of the insertion portion 11. It may be configured as follows. Incidentally, reference numeral 13 is a moving hook 3.
It is a hook provided for the convenience of operation.

As can be understood from the above description, the moving hook 3 is rotatable below the support bracket 6, and the overhanging arm portion 10 of the moving hook 3 is located above (support bracket). 6 to rotate to the angle in the range of 140 ° in the forward direction from the position where the legs 8 can fully overlap each other as shown in FIG. Is composed of. In this embodiment, the moving hook 3 is attached to the main body 2 via the support bracket 6 as an example, and the support bracket 6 is fixed to the fixing portion 7 of the support bracket 6 by a combination of bolts and nuts 14.
The support bracket 6 is configured to be detachable from the main body 2 by removing the bolts and nuts 14, and the relationship between the support bracket 6 and the main body 2 will be described. It does not matter if the structure is fixed by welding or the like.

Next, the fulcrum portion 4 will be described. This is similar to the fulcrum bracket 15 in the moving hook 3.
And a wheel 16 at its lower end. First, the fulcrum bracket 15 includes a fixing portion 17 for the main body 2 having a hexagonal cross section, a leg portion 18 extending downwardly from the main body 2, and an axle 19 extending horizontally from the leg portion 18. Is a female screw 2
0 is formed, and the lock bolt 21 is screwed into this to fix the fulcrum bracket 15 and the main body 2 to each other.

Incidentally, the fixed portion 17 of the fulcrum bracket 15 and the main body 2 are slidably fitted to each other, but due to the hexagonal cross section, there is no fear of rotation and they are always upright. Can be maintained.
When the main body 2 has a round bar-shaped cross section, other suitable rotation preventing means such as a key groove-shaped fitting is provided as necessary. Axle 19 in such fulcrum bracket 15
The wheel 16 is attached to the wheel 16
For example, the snap pin 23 is mounted by being fitted into the end portion of the axle 19. Of course, in this embodiment, the wheel 1
6 is composed of a pair of left and right wheels, but when a roller wheel having a relatively wide width is applied, only one wheel may be provided at the center. Further, such a wheel is preferable in that the work can be performed smoothly when the apparatus is moved or the manhole cover 30 is opened / closed, as will be described later, but it is not necessarily limited to the rotating wheel, and is merely It may be a protrusion.

The fulcrum portion 4 is required to be adjustable in its setting position in the present invention, but the concrete structure for making it adjustable has already been described. It is not limited to the examples. For example, as shown in FIG. 9 (a), a fulcrum bracket 15 'is rotatably provided with respect to the main body 2, and the fulcrum bracket 15' is rotated to shift the set position of the wheel 16 to the force point 2a or a moving hook serving as an action point. It may be designed to be set closer to 3.

The fulcrum itself may be selected in at least two positions depending on the edge cutting work and the manhole cover movement. Therefore, as shown in FIG. 9 (b), two fulcrums 15a and 15b are provided on the main body 2 according to the work. The fulcrum side that is provided and not used may be used so that the fulcrum side is retracted laterally or upward. The point is that the fulcrum position formed by the lower end of the fulcrum portion 4 can be selectively set in at least two positions with respect to the main body 2.

There is another embodiment of the moving hook 3 as shown in FIG. That is, when the manipulating lid opening / closing device 1 is used, the moving hook 3 is inserted into the hook hole 31 of the manhole lid when the insertion portion 11 thereof is inserted.
Due to the weight of the overhanging arm portion 10, it naturally tilts and the locking protrusion 12
Will be locked to the lower edge of the hook hole, but this is for ensuring this movement. For this purpose, in addition to the above-described configuration, the set spring S is locked between the overhang arm portion 10 and the leg portion 8 at the rotation support point 9 so that the angle between the overhang arm portion 10 and the leg portion 8 is set to the forward direction. Set it in a posture tilted around 140 ° in advance. In addition, such a set spring S
When using, it is possible to lock not only in the pulling direction but also in various directions.

The moving hook 3 of the present invention and the manhole cover opening / closing device 1 as an example to which the moving hook 3 is applied have the above-described concrete structure, and operate as described below to operate the manhole cover. Open and close. The operation of opening the closed manhole cover 30 will be described below.

I) Edge Cutting Operation First, in the edge cutting operation, the fixed manhole cover 30 is lifted to some extent, and a force of about 1000 kg is required. In this case, first, the lock bolt 21 on the fulcrum bracket 15 is loosened to draw the fulcrum bracket 15 sufficiently toward the moving hook 3 side, and the lever ratio is set to a large value. After doing so, the insertion portion 11 of the moving hook 3 is inserted into the hook hole 31 of the manhole cover 30 (see FIG. 5A).

Incidentally, the manhole cover 30 has the hook holes 31 of various types already described. In the moving hook 3 of the present invention, however, a pick hole type hook hole 31e is formed at the tip of the rod-shaped insertion portion. Alternatively, since only the locking projection 12 having a size that can fit into 31f is provided, the locking projection 12 can be inserted into any other type of hook hole (see FIG. 8). When set in this way, the insertion part 11 is lowered by its own weight and the locking projection 12 is locked to the bottom surface of the hook hole. After this, the operator pushes down the force point 2a side of the main body 2 downward. To operate.

When operated in this manner, the main body 2 moves to the fulcrum portion 4
At the lower end, that is, the ground contact portion of the wheel 16 as a fulcrum, moves so as to pull up the moving hook 3 side that is the working end. In this case, the pivotal support point 9 at the lower end of the support bracket lifts the moving hook 3 with this pulling up. At this time, the rotation direction of the insertion portion 11 inserted into the hook hole 31 and this rotation time. Since the moving support point 9 and the dynamic support point 9 are eccentric, the insertion portion 11 is moved to the position shown in
As shown in (b), the inside of the hook hole 31 has a posture in which the angle is slanted with respect to the forming direction of the hook hole 31,
The upper part of the back surface (the surface on the side where the locking projection 12 is not formed) of the insertion part 11 is pressed against the upper part of the hook hole, and the locking projection 12 is securely engaged with the peripheral edge of the bottom surface of the hook hole 31 of the manhole cover 30. It is in a stopped state.

When the main body 2 is further pushed down in this state on the side of the force point 2a, the hooking hole 31 is caused by a sufficiently large lever ratio due to the eccentricity of the pivotal support point 9 which is a substantial point of action. While further strengthening the locked state between the moving hook 3 and the moving hook 3, it acts so as to pull up the periphery of the manhole cover 30, so that the fixing of the manhole cover 30 is released and so-called edge cutting is performed.

Then, for example, the hook hole 31 has the manhole cover 30.
The distance between the action point and the fulcrum when the fixed edge is cut is determined by the length of the overhanging arm portion 10 on the moving hook 3 at the rotation support point 9 which is the action end even when it is formed at the inner position separated from the periphery of the. Depending on the setting, it can be set sufficiently close to the periphery of the manhole cover 30, extremely on the manhole receiving frame, and the fulcrum portion 4 can be sufficiently biased to the working end side, so that it is sufficiently short, for example within 5 cm. It is also possible to increase the leverage ratio sufficiently, and the moving hook 3
A strong edge cutting force can be exerted in combination with the engagement of the manhole cover 30 with the.

Ii) Pulling up the manhole cover Next, the operation of pulling up the manhole cover 30 and inserting the roller 50 for moving the manhole cover into the lower surface thereof will be described. Since this work pulls up one side of the manhole cover 30 where the edge of the manhole cover 30 has already been cut off, only a load of about 1/2 of its own weight is applied, and therefore the leverage ratio in the main body 2 is rather small. A large lift is not required, but a sufficient lift height on the side of the working point is required instead. This worker is the fulcrum bracket 1
Loosen the lock bolt 21 in 5, and the fulcrum bracket 1
5 is moved to the most proximate point 2a of the fulcrum adjustment part 2c in the main body 2, the lever ratio is set to be small, and the insertion part 11 is inserted into the hook hole 31 (see FIG. 6 (a)).

After this, the moving hook 3 is pushed down on the force point a side of the main body 2 in the same manner as in the edge cutting work described above, so that the moving hook 3 is moved to the manhole cover 3 as shown in FIG. 6 (b).
Raise one end of 0 high enough. Immediately after such an operation, the roller 50 is inserted under the manhole cover 30, the force point side of the main body 2 or the handle 2b is held, and the manhole cover 30 is pulled out so as to be placed on the roller 50. If there is a protrusion on the lower surface of the manhole cover and there is a problem, the mandrel cover is pulled out.

Iii) Manhole cover withdrawal work by reversal operation method a) Depressing operation (see FIG. 7 (a)) This work is performed even after the roller 50 is inserted into the lower surface of the manhole on the side pulled up in the previous step. One roller 5
It is a handling operation for inserting 0 into the lower surface of the manhole cover 30 on the side that has not been pulled up yet, and is an effective operation when there is a locking projection or the like on the lower surface of the manhole cover. That is, in this operation, first, the moving hook 3 is rotated, and the protruding arm portion 10 is rotated substantially along the leg portion 8 of the support bracket 6. In this case, the side surface is in a state in which the insertion portion 11 of the moving hook 3 projects substantially at a right angle from the vicinity of the middle of the leg portion 8 of the support bracket 6.

As described above, in order to lift the other side with the roller 50 as the fulcrum on the lower surface of the side already pulled up in the previous step, as shown in FIG. The insertion portion 11 is inserted into the hook hole 31 of the manhole cover 30 with the wheel 16 of the portion 4 or the leg 8 side of the support bracket 6 positioned. By the way, in this operation, the fulcrum portion 4 of the present apparatus is not specially used, so that the setting position may be any position.

After doing so, the force point on the main body 2 is operated so as to be pulled in the clockwise direction in the figure. By this operation, first, between the main body 2 and the support bracket 6, the tip end portion of the main body 2 that is in contact with the manhole cover 30 serves as a fulcrum, and the pivotal support point 9 at the lower end portion of the support bracket 6 is moved substantially upward in the figure. It acts like pulling up. In this case, the moving hook 3 rotatably attached to the movable hook 3 is fixed to the rotation support point 9 of the overhanging arm 10.
As the side is lifted, the hooks 31 incline in the hook holes 31, and the locking projections 12 in the insertion portion 11 are in a state of being strongly engaged with the bottom portions of the hook holes 31 in the manhole cover 30.

When the main body 2 is further pulled down in this way, the side end portion of the support bracket 6 of the main body 2 or the support bracket 6 itself acts so as to push down the end edge portion of the manhole cover 30. 30 is raised so that the other end side is lifted up around the roller 50 inserted thereunder. After this, one or an appropriate number of rollers 50 are inserted into the pulled-up side where the rollers 50 are not yet inserted, and the manhole cover 30 is handled so as to be pulled out from the installation position.

B) Pulling up operation (see FIG. 7 (b)) The above-mentioned operation is an operation of pushing down the hook hole 31 side of the manhole cover 30, but conversely, when pulling up the hook hole 31 side, FIG. As shown in (b), the insertion direction with respect to the hook hole 31 is set reversely. That is, manhole cover 3
Roller 5 inserted into the lower surface of the hook hole 31 of 0
The insertion portion 11 of the moving hook 3 is inserted into the hook hole 31 so that the main body 2 is located on the 0 side. At this time, in the same manner, pull down the power point 2a side of the main body 2 as shown in FIG.
When rotating counterclockwise in (b), the tip of the support bracket 6, that is, the side of the rotation support point 9 is first raised upward with the tip of the main body 2 on the moving hook 3 side as a fulcrum. Along with this, the rotation support point 9 side of the overhanging arm portion 10 of the moving hook 3 is inclined so as to be lifted upward.

In this case, the insertion portion 11 inserted in the hook hole 31 also tilts, and the locking projection 12 at the tip thereof bites into the lower surface edge of the hook hole 31 to move the hook 3.
First, firm engagement with the manhole cover 30 is made. Then, when the main body 2 is pulled down, a force for pulling up the hook hole 31 side around the roller 50 acts on the manhole cover 30 as a whole, thereby pulling up the hook hole 31 side of the manhole cover 30. When inserting the roller 50, in addition to the operation method described in this section, for example, in the case where the hook hole 31 is provided at two places around the outer circumference on the diameter line of the manhole cover 30, first, After inserting the roller 50 near the hook hole 31 on the lifted side, the other hook hole 31 can be pulled up by the method described in the above section ii), and another roller 50 can be inserted.

Iv) Closing work In the manhole cover 30 thus opened, at least one roller 50 is usually placed near the manhole hole while the at least one roller 50 remains on the lower surface of the manhole cover 30 until the work is completed. After this, to return it, for example, as shown in FIG.
While pushing down the hook hole 31 side of the manhole cover 30 by a so-called inversion operation method as shown in (a),
The manhole cover 30 is supported by at least one roller 50, and the manhole cover 30 is pulled into the manhole receiving frame side. Of course, this return direction may be reversed as shown in FIG. 7 (b). The point is that at least the manhole cover 30 may be moved by using the rollers 50 so that one side fits into the manhole receiving frame. Then, after that, the manhole cover 30 is lifted by the normal lifting method shown in FIG. 6, the roller 50 provided on the lower surface of the manhole cover 30 is removed, and the pushing down of the force point 2a side of the main body 2 is released to remove the manhole cover 30. Fit in.

II. Other Application Examples The moving hook 3 of the present invention can be applied not only to the manhole cover opening / closing device 1 described above, but also to the lifting device 1a for unloading as shown in FIG. 13, for example. That is, the lifting device 1a shown in FIG. 13 has a lifting conveyor 25 arranged vertically.
On the other hand, a plurality of arms 26 are taken out from the endless belt around which they are wound at appropriate intervals as attachments, and the moving hook 3 of the present invention is attached to the tip of this arm 26. To show the operating state in this case, first, the moving hook 3 located at the lowermost end of the elevator conveyor 25 acts on the receiving hole 32 of the luggage A in the same manner as described for the manhole cover opening / closing device 1. The luggage A is held by engaging with the receiving hole 32, and the luggage A is transferred to a predetermined upper unloading position as the lifting conveyor 25 is driven.

Further, the lifting device 1a is shown in FIG.
It is also possible to provide the moving hook 3 of the present invention at the tip of the rod 28 of the cylinder 27 by using the cylinder 27 as shown in FIG. In this case, when the rod 28 of the cylinder 27 is extended, the moving hook 3 is inserted into the receiving hole 32 of the luggage A.
The rod 28 of the cylinder 27 can be contracted and the load A can be transferred to the upper predetermined unloading position while maintaining the engaged state.

Further, as the load A to be unloaded by the moving hook 3, a roll-shaped base paper 40 as shown in FIG. 15 can be applied. When the roll-shaped base paper 40 is lifted, the core of the roll-shaped base paper 40 is lifted. The stepped hole 42 formed in the body 41 is used, and the stepped portion 43 is engaged with the moving hook 3 of the present invention.

[0038]

The moving hook 3 of the present invention has the above-mentioned solid structure and exhibits the following effects. That is, in the moving hook 3 of the present invention, the overhanging arm portion 10 is rotatably provided with respect to the support member, and the insertion portion 11 is provided at the tip of this, so that the turning support point 9 is the center of the movement hook 3. Since the locking projection 12 formed on the insertion portion 11 acts on the edge portion of the receiving portion by rotating due to its own weight or the like to form an engaged state, it has an extremely simple structure and a small hole receiving portion. It is applicable even if there is.

When the moving hook 3 of the present invention is applied to the manhole cover opening / closing device 1, the manhole cover in a heavy and strongly fixed state can be trimmed and removed with very little force, and the operator can It can reduce labor and ensure safe work, and can contribute to the previously-occurred industrial accidents and promote the employment of workers who perform this type of heavy labor. Furthermore, when the moving hook 3 of the present invention is used, a manhole cover having a so-called pickhole type hook hole can be opened and closed, and almost all through-hole type manhole covers can be supported.

In addition, the moving hook 3 of the present invention can be applied to various kinds of lifting and conveying machines such as cranes and lifters for unloading, and is excellent in versatility.

[Brief description of drawings]

FIG. 1 is a perspective view showing a manhole cover opening / closing device to which a moving hook according to the present invention is applied.

FIG. 2 is a side view of the same.

FIG. 3 is an enlarged exploded perspective view showing a moving hook and a fulcrum portion of the present invention.

FIG. 4 is a partially cutaway side view of a moving hook.

FIG. 5 is a side view showing a usage state in an edge cutting work.

FIG. 6 is a side view showing a lifting operation of the manhole cover.

FIG. 7 is a side view showing a reversing operation method which is another method of using the manhole cover opening / closing device.

FIG. 8 is a plan view showing the state of engagement with hook holes in various manhole covers.

FIG. 9 is a skeletal side view showing another embodiment of the fulcrum portion.

FIG. 10 is an explanatory view showing various hook holes in a manhole cover which is an example of a processing object of the present invention on one manhole cover, and a moving hook adapted to each hook hole.

FIG. 11 is a side view showing another embodiment of the moving hook.

FIG. 12 is an operation view of the lever when opening and closing the manhole cover.

FIG. 13 is an explanatory diagram showing another application example of the moving hook of the present invention.

FIG. 14 is an explanatory diagram showing still another application example of the same.

FIG. 15 is a skeletal center vertical cross-sectional view showing an engaged state when a roll-shaped raw paper is transferred.

[Explanation of symbols]

 1 Manhole cover opening / closing device 1a Lifting device 2 Main body 2a Power point 2b Handle 2c Support point adjustment part 3 Moving hook 4 Support point part 6 Support bracket 7 Fixing part 8 Leg part 9 Rotating support point 10 Overhanging arm part 11 Insert part 12 Engagement Stop protrusion 13 Hook 14 Bolt / nut 15 Support bracket 15 'Support bracket 15a Support 15b Support 16 Wheel 17 Fixing part 18 Leg 19 Axle 20 Female thread 21 Lock bolt 23 Snap pin 25 Lifting conveyor 26 Arm 27 Cylinder 28 Rod 29 Shuttle conveyor 30 Manhole cover 31 Hook hole 31a Hook hole 31b Hook hole 31c Hook hole 31d Hook hole 31e Hook hole 31f Hook hole 32 Receiving hole 40 Roll raw paper 41 Core body 42 Step hole 43 Step difference 45 Hooking hook 47 Hook part 46 Color A Luggage S Sets Ring

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location E02D 29/12 B 9126-2D

Claims (1)

Claim: What is claimed is: 1. A locking member which is connected to an appropriate moving member at a pivotal support point orthogonal to the moving direction,
The locking member includes an extension arm portion and an insertion portion extending from the extension arm portion in a direction opposite to the retracting direction and apart from the rotation support point, and the rotation support in the insertion portion is provided. A moving hook characterized by having a locking portion on the point side.