JP3134450U - Sucker hook - Google Patents

Abstract

Provided is a suction cup hook capable of adsorbing a suction cup body to the suction surface by applying a negative pressure to the suction face having a concave and convex portion, and the portion surrounded by the concave surface and the suction face of the suction cup body becomes negative pressure.
A sucker hook is configured such that when a sucker body is attracted to a suction surface, a ring-shaped elastic portion provided on a concave surface of the sucker body that comes into contact with the suction surface is pressed from a convex surface side by a circular pressing plate. , Get into the recesses of the suction surface with irregularities. As a result, air is not sealed in from the outside to the part surrounded by the suction surface and the concave surface of the suction cup body, and the suction cup body is sucked so as to push out the air surrounded by the suction surface and the concave surface of the suction cup body. By pressing against the surface, the portion surrounded by the suction body concave surface and the suction surface becomes negative pressure. Therefore, a suction cup hook can be provided even if the suction surface has irregularities.
[Selection] Figure 1

Description

  The present invention relates to a suction cup hook provided with a hook body on the convex surface side of the suction cup body adsorbed to a predetermined suction surface.

  There is a sucker hook having a hook or the like for catching an object and a sucker body that is adsorbed to an adsorption surface such as a wall. Among them, there is a sucker hook provided with a gel pad made of urethane resin at the center of the concave portion of the sucker surface in order to prevent the sucker from coming off easily (see, for example, Patent Document 1).

Utility Model Registration No. 3120176

  However, conventional suction cup hooks including Patent Document 1 may not be able to be adsorbed depending on the surface state of the adsorption surface. For example, in the case of a suction surface with some unevenness such that the surface is rough, air enters the part surrounded by the concave surface of the suction cup body and the suction surface from the unevenness of the suction cup surface, so the concave surface of the suction cup body The part surrounded by the adsorption surface does not become negative pressure. Therefore, the suction cup body cannot be adsorbed and the suction cup hook cannot be provided.

  Therefore, in the present invention, for example, even on a suction surface with some unevenness such as a rough surface, the portion surrounded by the concave surface and suction surface of the suction cup body becomes negative pressure and sucks the suction cup body. An object of the present invention is to provide a sucker hook that can be adsorbed to a surface.

  The suction cup hook of the present invention is provided in a ring shape having a predetermined width on the inner side of the outer periphery of the concave surface of the suction cup body, which is deformed in accordance with the suction cup surface sucked on the suction face, and the surface shape of the suction face. An elastic portion; a hook body provided on the convex surface of the suction cup body; and a circular pressing plate provided between the suction cup body and the hook body and pressing the elastic portion from the convex surface side of the suction cup body. It is characterized by.

  According to the suction cup hook of the present invention, when the suction cup body is attracted to the suction surface, the ring-shaped elastic portion provided on the concave surface of the suction cup body that is in contact with the suction surface is pressed from the convex surface side by the circular pressing plate. Then, it enters the concave portion of the suction surface having irregularities. As a result, air is not sealed in from the outside to the part surrounded by the suction surface and the concave surface of the suction cup body, and the suction cup body is sucked so as to push out the air surrounded by the suction surface and the concave surface of the suction cup body. By pressing against the surface, the portion surrounded by the suction surface and the suction surface becomes negative pressure. Therefore, a suction cup hook can be provided even if the suction surface has irregularities.

  In addition, a hole is provided at the center of the suction cup body of the suction cup hook of the present invention so as to connect the concave surface and the convex surface of the suction cup body. The hook body includes a cylinder portion connected to the hole, and the cylinder. It is provided inside the part, and has a piston part integrally formed with the hook, with a negative pressure between the suction cup body and the suction surface by being pulled out from the cylinder part.

  According to the suction cup hook having such a configuration, by pulling out the piston portion from the cylinder portion, the suction surface is surrounded by the concave surface and the suction surface of the suction cup body through a hole that connects the concave surface and the convex surface provided in the center of the suction cup body. Air is drawn from the part. Therefore, the portion surrounded by the concave surface and the suction surface of the suction cup body becomes a negative pressure, and the suction force of the suction cup body to the suction surface can be further increased. That is, even if the suction surface has unevenness, the suction cup hook can be provided more powerfully.

  Furthermore, between the circular pressing plate and the convex surface of the suction cup body in the suction cup hook of the present invention, a spring provided to pull the circular pressing plate away from the convex surface of the suction cup body is provided, outside the cylinder portion. Is provided with a disk moving lever that is rotatably provided and moves the circular pressing plate so as to contact the convex surface of the suction cup body when the suction cup body is sucked to the suction face.

  According to the suction cup hook of such a configuration, by moving and fixing the disk movement lever so as to press the circular pressing plate against the concave surface of the suction cup body, in addition to the force applied to the convex surface of the suction cup body when fixing the disk movement lever, The restoring force of the spring will be added. Therefore, the elastic part is pressed more strongly from the convex surface side of the suction cup body. Therefore, the portion surrounded by the concave surface and the suction surface of the suction cup body can be further sealed. That is, even if the suction surface has unevenness, the suction cup hook can be provided more powerfully.

  Furthermore, the concave surface of the suction cup body in the suction cup hook of the present invention is provided with a ring-shaped groove portion having a width larger than the width of the ring-shaped elastic portion, and the elastic portion has a gap in the groove portion. It is characterized by being provided.

  According to the suction cup hook having such a configuration, the elastic portion is deformed in accordance with the shape of the suction cup body by pressing the suction cup body against the suction surface by the gap provided between the ring-shaped groove portion and the elastic portion. At this time, since the elastic portion enters the provided gap, the entire concave surface of the suction cup body excluding the groove portion can be brought into contact with the suction surface. That is, even if the suction surface has unevenness, the suction cup hook can be provided more powerfully.

  Furthermore, the piston part is provided with a stopper that is hooked to the cylinder part, and a second spring that is provided so as to pass through the piston part inside the cylinder part, and a hook part that hooks the stopper. It is characterized by having.

  According to the suction cup hook having such a configuration, the piston portion can be fixed in the pulled-out state by hooking the stopper of the piston portion to the hook portion. And the part surrounded by the concave surface of the suction cup body and the suction surface can be maintained in a negative pressure state.

  Also, the piston of the hook body of the suction cup hook of the present invention has a roller that contacts the suction surface when the circular pressing plate is moved by the lever so as to contact the convex surface of the suction cup body. Is provided.

  According to the suction cup hook having such a configuration, the force applied to the joint portion between the hook body and the suction cup body when the object is hooked can be dispersed by the roller in contact with the suction surface. Further, the force applied in a direction in which a part of the suction cup body is pulled away from the suction surface can be weakened, and the suction face hook can be provided more powerfully even if the suction surface has irregularities. Furthermore, since the frictional force between the suction surface and the roller is small, the cylinder part can be easily pulled out.

  Furthermore, the hook body in the suction cup hook of the present invention is provided with a ring body. According to the sucker hook having such a configuration, it is possible to use the ring body through the rod body.

  When the suction cup hook of the present invention adsorbs the suction cup body to the suction surface, the ring-shaped elastic part provided on the concave surface of the suction cup body that comes into contact with the suction surface is pressed by the circular pressing plate from the convex side. It enters into the concave portion of the suction surface having irregularities. As a result, air is not sealed in from the outside to the part surrounded by the suction surface and the concave surface of the suction cup body, and the suction cup body is sucked so as to push out the air surrounded by the suction surface and the concave surface of the suction cup body. By pressing against the surface, the portion surrounded by the suction surface and the suction surface becomes negative pressure. Therefore, a suction cup hook can be provided even if the suction surface has irregularities.

  Hereinafter, the suction cup hook of the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited to the following description, In the range which does not deviate from a summary, it can change suitably.

  FIG. 1 is a perspective view of a suction cup hook according to the present invention. The suction cup hook of the present invention has a suction cup body 1, a hook body 3 provided on the convex surface of the suction cup body 1, and a circular pressing plate 5 provided between the suction cup body 1 and the hook body 3.

  FIG. 2 is a perspective view showing the convex side of the suction cup body, and FIG. 3 is a diagram showing the concave side of the suction cup body. As shown in FIG. 2, the suction cup body 1 has a recess for fitting the hook body 3 in the approximate center of the convex surface, and is formed with a substantially conical projection 10 that gradually narrows toward the center. . The suction cup body 1 is made of a flexible resin such as vinyl chloride resin.

  Further, a flat ring-shaped trimming body 11 that borders the end is attached to the end of the suction cup body 1. The rim body 11 is made of rubber harder than the suction cup body 1. As shown in FIG. 3, the edging body 11 is provided with a plurality of circular grooves 12 along the outer periphery of the suction cup body 1 on the concave surface side of the suction cup body 1.

  Furthermore, a groove portion 15 having a predetermined width along the outer periphery is formed in a ring shape on the concave surface near the outer periphery on the inner side of the outer periphery of the suction cup body 1. The groove portion 15 is provided with a ring-shaped elastic portion 16 having a narrower width than the groove portion 15. That is, the elastic part 16 is provided in a ring shape inside the outer periphery of the concave surface of the suction cup body. The elastic portion 16 is provided along the inside of the groove portion 15, and a gap 17 is formed on the outside of the groove portion 15. The material of the elastic portion 16 is not particularly limited as long as it is deformed in accordance with the surface shape of the suction surface when pressed, but is preferably a soft elastic material such as a thermoplastic elastomer rubber. .

  FIG. 4 is a cross-sectional view illustrating the internal structure of the suction hook according to the present invention. In the suction cup body 1, a hole 19 is formed in the center of the convex protrusion 10, that is, the center of the convex face of the suction cup body 1. As shown in FIG. 4, the hole 19 penetrates the center of the convex surface of the suction cup body 1 and the center of the concave surface, and the size of the hole 19 is the concave side as shown in FIGS. It is sufficient that the air can flow into the convex surface side.

  FIG. 5 is a perspective view showing the shapes of the circular pressing plate and the cylinder portion of the hook body. The circular pressing plate 5 is a disk-shaped member made of resin and having a hole 50 at the center thereof. The circular pressing plate 5 is provided between the suction cup body 1 and the hook body 3 by inserting a connecting portion 31 of the hook body 3 to be described later into the hole 50. At the end of the surface of the circular pressing plate 5 on the hook body 3 side, a pressing portion 52 that presses the elastic portion 16 from the convex surface side of the suction cup body 1 is formed. That is, the size of the circular pressing plate 5 is such that the end of the circular pressing plate 5 with the pressing portion 52 is disposed at a position corresponding to the position of the elastic portion 16 provided in the suction cup body 1. Yes.

  The pressing portion 52 is thicker than the vicinity of the center of the circular pressing plate 5 and is flat so that the portion that contacts the convex surface of the suction cup body 1 is substantially parallel to the suction surface to which the suction cup body 1 sucks. Further, the hook body 3 side of the pressing portion 52 has a shape that is gradually inclined toward the suction cup body 1 toward the periphery.

  Between the circular pressing plate 5 and the suction cup body 1, a spring 53 in which a metal wire is wound in a coil shape is provided. The spring 53 is arranged so that the projection 10 of the suction cup body 1 is inserted through the center of the spring 53. When the suction cup body 1 is removed from the suction surface, the spring 53 can push up a pressing lever 49 described later and pull the circular pressing plate 5 away from the suction cup body 1. Thereby, the press to the elastic part 16 is cancelled | released and it becomes easy to remove the suction cup body 1 from an adsorption | suction surface.

  FIG. 6 is a perspective view of the piston portion of the hook body. As shown in FIGS. 5 and 6, the hook body 3 includes a cylinder part 30, a piston part 40, and a pressing lever 49.

  The cylinder part 30 is configured by a connection part 31 connected to the protrusion 10 of the suction cup body 1 and a cylinder body 34 into which the piston part 40 is inserted. The cylinder part 30 is made of a synthetic resin such as acrylic.

  The connecting portion 31 has a shape that covers the protrusion 10 of the suction cup body 1 from the outside and fits into the recess of the protrusion 10. And as for the connection part 31, the through-hole 32 which penetrates an inside is formed like FIG. The through hole 32 is connected to the hole 19 on the convex surface side of the suction cup body 1 by fitting the connection portion 31 to the protrusion 10 of the suction cup body 1.

  The cylinder body 34 is a member having a hollow interior, and one end portion is connected to the connection portion 31 so that the overall shape of the cylinder portion 30 is a bowl shape. Further, the other end portion of the cylinder body 34 has a shape released by the opening 33, and the piston portion 40 is inserted through the opening 33. The inside of the cylinder body 34 is connected to the through hole 32 of the connecting portion 31 as shown in FIG. That is, the inside of the cylinder body 34 is connected to the hole 19 of the suction cup body 1 through the through hole 32 of the connection portion 31.

  In the vicinity of the opening 33 of the cylinder body 34, two holes 35 as hooking portions for hooking stoppers 46 provided on the piston portion 40 described later are provided so as to face each other. The number of the holes 35 corresponds to the number of the stoppers 46, and the positions of the holes 35 are provided so as to correspond to the stoppers 46 formed in the piston part 40 so that the piston part 40 is fixed at a predetermined position. It has been.

  As shown in FIG. 5, the pressing lever 49 is a member made of a synthetic resin that is formed in a U shape as a whole and is curved in the same direction near both ends. Both end portions of the pressing lever 49 are rotatably provided outside the cylinder body 34. The pressing lever 49 is rotated about a line connecting both ends as a central axis, so that the curved portion is in contact with the circular pressing plate 5, and the circular pressing plate 5 is moved so as to press the convex surface of the suction cup body 1. Note that, as shown in FIG. 5, the curved portion is partially flat so as to increase the contact area with the circular pressing plate 5.

  As shown in FIG. 6, the piston portion 40 includes a piston main body 41 and a hook 42, and at least the vicinity of the center has a hollow structure. The piston part 40 is formed of a synthetic resin such as acrylic, for example, like the cylinder part 30.

  The piston body 41 is formed at one end of the piston portion 40, and the tip thereof has substantially the same shape as the inside of the cylinder body 34. The piston body 41 is provided with an O-ring to improve the sealing performance of the piston body 41 to the cylinder body 34. By inserting the piston main body 41 into the cylinder main body 34, air does not enter and exit from the opening 33 of the cylinder main body 34.

  The hook 42 is formed at the other end of the piston portion 40, and has a shape that warps so that the tip faces the opposite side with respect to the suction cup body 1 when the piston portion 40 is inserted into the cylinder portion 30. A ring body 43 through which a rod body having a predetermined diameter can be passed is attached to the hook 42.

  In addition, the hook 42 has a protrusion 44 that protrudes on the opposite side to the tip of the hook 42, and contacts the suction surface when the suction cup body 1 is sucked to the suction surface at the tip of the protrusion 44. Thus, a roller 45 is rotatably provided. The roller 45 is made of a relatively elastic material such as rubber.

  A stopper 46 is formed on the piston portion 40. The stopper 46 is provided with a U-shaped opening in the vicinity of the center of the piston portion 40 having a hollow inside, and a protrusion protruding outward is formed in a portion surrounded by the U-shaped opening. Is. The stopper 46 is caught by the protrusion of the stopper 46 protruding from the hole 35 provided in the cylinder body 34 by pulling out the piston part 40 from the cylinder part 30, so that the piston part 40 is fixed to the cylinder part 30. It has become. Further, when the protrusion of the stopper 46 protruding from the hole 35 is pressed so as to be pushed into the cylinder body 34, the catch is released.

  In the vicinity where the stopper 46 is provided, that is, in the vicinity of the center of the piston portion 40, a spring 47 in which a metal wire is wound in a coil shape is provided. The spring 47 is disposed at the center between the vicinity of the center of the piston portion 40 provided with the stopper 46 and the vicinity of the opening 33 of the cylinder portion 30. By pulling out the piston portion 40 from the cylinder portion 30 by the spring 47, an elastic force is generated in the direction in which the piston portion 40 is inserted into the cylinder portion 30. When the protrusion of the stopper 46 protrudes from the hole 35, the spring 47 presses the stopper so that the protrusion of the 46 is pushed into the cylinder body 34, so that the piston 47 is pressed by the elastic force of the spring 47. 40 is inserted into the cylinder part 30.

  Hereinafter, a method of mounting and using the suction hook of the present invention having the above-described configuration on the suction surface will be described. Unlike the conventional suction cup hook, the suction hook of the present invention can be provided on a suction surface having irregularities such as a rough surface.

  First, when the suction cup hook of the present invention is provided on the suction surface, the concave surface of the suction cup body 1 is brought into contact with the suction surface with the piston portion 40 inserted into the cylinder portion 30 as much as possible as shown in FIG. Press the entire suction cup hook from the concave side of 1. At this time, as shown in FIG. 8, the pressing lever 49 is rotated toward the suction cup body 1, the circular pressing plate 5 is brought into contact with the convex surface of the suction cup body 1, and the suction cup body 1 is pressed.

  Thereby, air is discharged | emitted from the location enclosed by the concave surface and adsorption surface of the suction cup body 1 outside. And the elastic part 16 arrange | positioned in the corresponding position is crushed because the circular press board 5 presses the convex surface of the suction cup body 1. FIG.

  When the elastic portion 16 is pressed by the circular pressing plate 5 from the convex surface side of the suction cup body 1 and is crushed, the elastic portion 16 deforms in accordance with the surface shape of the suction surface. For example, in the case of a suction surface having an uneven surface, the elastic portion 16 is deformed so as to enter the recess. Thereby, the part enclosed by the suction cup body 1 and the adsorption | suction surface becomes a negative pressure, and the suction cup body 1 can be adsorb | sucked to an adsorption | suction surface.

  Moreover, the elastic part 16 is provided in the inside of the groove part 15, and the clearance gap 17 is formed in the groove part 15 like FIG. When the elastic portion 16 is pressed from the convex surface side by the circular pressing plate 5, as shown in FIG. 11, the elastic portion 16 is deformed according to the unevenness of the suction surface and is deformed so as to fill the gap 17. Thereby, the adhesiveness of the concave surface and suction surface of the suction cup body 1 increases.

  After sucking the suction cup body 1 on the suction surface, as shown in FIG. 8, the piston part 40 of the hook body 3 is pulled out from the cylinder part 30, and the protrusion of the stopper 46 is projected from the opening 33 of the cylinder body 34. Is fixed to the cylinder part 30.

  By pulling out the piston portion 40 from the cylinder portion 30, the air in the portion surrounded by the concave surface and the suction surface of the suction cup body 1 is extracted through the hole 19 of the suction cup body 1 and the through hole 32 of the connection portion. . Therefore, the portion surrounded by the concave surface and the suction surface of the suction cup body 1 becomes more negative pressure, and the suction cup body 1 is more strongly suctioned by the suction face.

  Thus, the suction cup hook of the present invention provided on the suction surface can hook an object on the hook 42. Further, the suction cup hook of the present invention is provided with a ring body 43, and an object or a rod body can be passed through the ring body 43. For example, an object can be indirectly hooked by using two suction cup hooks of the present invention and inserting a rod body through each ring body 43.

  As described above, when an object is hooked on the suction cup hook of the present invention, the weight of the object is added to the suction cup body 1 and the connection part 31. And force will be applied in the direction in which the part on the opposite side with respect to the opening 33 of the cylinder part 30 among the suction cups 1 is pulled away from the adsorption surface. The suction cup hook of the present invention is provided with a roller 45 provided on the piston portion 40 via a protrusion 44, and this roller 45 comes into contact with the suction surface when the suction cup body 1 is sucked on the suction surface. Therefore, even when an object is hooked on the suction cup hook, the weight can be supported not only by the suction cup body 1 and the connection portion 31 but also by the roller 45. Therefore, the burden placed on the suction cup body 1 and the connecting portion 31 can be dispersed. Further, the force applied in a direction in which a part of the suction cup body 1 is pulled away from the suction surface can be weakened, and the suction cup hook can be more strongly suctioned to the suction surface even if the suction surface has irregularities. Further, in this case, when the piston portion 40 is pulled out from the cylinder portion 30, even if the roller 45 is in contact with the suction surface, the roller 45 causes little friction with the suction surface, and the piston portion 40 is easily pulled out from the cylinder portion 30. be able to.

  Thus, the suction hook of the present invention provided on the suction surface is removed as follows. First, the protrusion of the stopper 46 protruding into the hole 35 of the cylinder body 34 is pushed into the cylinder body 34. Accordingly, the piston portion 40 is inserted into the cylinder portion 30 by the spring 47 provided between the cylinder portion 30 and the piston portion 40. When the piston part 40 is inserted into the cylinder part 30, the negative pressure in the part surrounded by the suction cup body 1 and the suction surface is relieved.

  Next, the pressing lever 49 is rotated away from the suction cup body 1. At this time, the circular pressing plate 5 moves in a direction away from the convex surface of the suction cup body 1 by the spring 53 provided between the suction cup body 1 and the circular pressing plate 5. Thereby, since the pressing to the elastic part 16 from the convex surface side of the suction cup body 1 is released, for example, the elastic part 16 is attracted to the suction surface so that the elastic part 16 that has entered the concave part of the suction surface having irregularities exits from the concave part. Return to the shape before adsorbing. Therefore, the negative pressure applied to the portion surrounded by the concave surface and the suction surface of the suction cup body 1 is released, and the suction cup body 1 can be removed from the suction surface.

  As described above, the suction cup hook of the present invention can be provided even with a suction surface having irregularities with a rough surface, for example, but it is similarly provided with a suction surface without irregularities. The suction cup body 1 can be more strongly adsorbed on the adsorption surface.

  Moreover, the suction cup hook of this invention can change a magnitude | size, the shape material of a hook, etc. suitably according to a use. The shape and number of the stoppers 46 are not particularly limited as long as the piston part 40 can be hooked on the cylinder part 30.

It is a perspective view of the suction cup hook of this invention. It is a perspective view of the suction cup body convex part side which comprises the suction cup hook of this invention. It is a figure of the suction cup body recessed part side which comprises the suction cup hook of this invention. It is sectional drawing which shows the internal structure of the suction cup hook of this invention. It is a perspective view of the cylinder part of the circular press board and hook body which comprise the suction cup hook of this invention. It is a perspective view of the piston part of the hook body which comprises the suction cup hook of this invention. It is a side view which shows the state of the suction cup hook of this invention before mounting to a wall. It is a side view which shows the state of the suction cup hook of this invention at the time of mounting | wearing to a wall. It is an expanded sectional view explaining the state of the suction cup body edge part of the suction hook of this invention before mounting to a wall. It is an expanded sectional view explaining the state of the suction cup body edge part of the suction hook of this invention at the time of mounting | wearing to a wall.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Suction body 10 Protrusion 11 Edge body 12 Groove 15 Groove part 16 Elastic part 17 Gap 19 Hole 3 Hook body 30 Cylinder part 31 Connection part 32 Through hole 33 Opening 34 Cylinder main body 35 Hole 40 Piston part 41 Piston main body 42 Hook 43 Ring body 44 Protrusion 45 Roller 46 Stopper 47 Spring 49 Pressing lever 5 Circular pressing plate 50 Hole 52 Pressing portion 53 Spring

Claims (7)

A sucker body that adsorbs to the adsorption surface;
An elastic portion that is deformed according to the surface shape of the suction surface, and is provided in a ring shape having a predetermined width inside the outer periphery of the concave surface of the suction cup body;
A hook body provided on the convex surface of the suction cup body;
A suction cup hook, comprising: a circular pressing plate provided between the suction cup body and the hook body and pressing the elastic portion from the convex side of the suction cup body. In the center of the suction cup body, a hole is provided to connect the concave surface and the convex surface of the suction cup body,
The hook body includes a cylinder portion connected to the hole;
The suction cup hook according to claim 1, further comprising: a piston portion that is provided inside the cylinder portion and that is pulled out from the cylinder portion so as to create a negative pressure between the suction cup body and the suction surface and is integrally formed with the hook. Between the circular pressing plate and the convex surface of the suction cup body, a spring provided to separate the circular pressing plate from the convex surface of the suction cup body is provided,
Provided outside the cylinder portion is a disc movement lever that is rotatably provided and moves the circular pressing plate so as to contact the convex surface of the suction cup body when the suction cup body is attracted to the suction surface. The suction cup hook according to claim 2, wherein The concave surface of the suction cup body is provided with a ring-shaped groove portion having a width larger than the width of the ring-shaped elastic portion,
The suction cup hook according to claim 3, wherein the elastic portion is provided with a gap in the groove portion. The piston part is provided with a stopper hooked on the cylinder part,
The suction cup hook according to claim 4, further comprising a second spring provided so as to be inserted through the piston portion and a hook portion for hooking the stopper inside the cylinder portion.   The piston part of the hook body is provided with a roller that contacts the suction surface when the circular pressing plate is moved by the lever so as to contact the convex surface of the suction cup body. The suction cup hook according to claim 5.   The suction cup hook according to claim 6, wherein the hook body is provided with a ring body.