JP2887750B2 - Rotating hook - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating hook formed by connecting a male hook member to a male hook member in a freely rotatable manner.

[0002]

2. Description of the Related Art Known engaging devices often use a male engaging member when the direction of the external force applied to the male engaging member is different from the direction of the external force applied to the female engaging member. There is a problem that the member or the female engaging member may be damaged, and both members may be displaced from the position of the engaging member. Therefore, a rotating hook is used. That is, the use of the rotating hook solves the drawback that the relative rotation cannot be performed when the male engaging member and the female engaging member in the known engaging tool are axially engaged. is there.

[0003] However, the rotary hook also has a drawback that its design still requires a solution. That is, for example, the "rotation hook" proposed in U.S. Pat. No. 5,475,901 will be described. As shown in FIGS. 1 and 2, a female hook member 14 'having an insertion seat 30' is provided.
And a male hook member 12 'having an insertion leg 22', a through hole 44 'is drilled in the insertion seat 30', and a bottom end edge of the insertion seat 30 'is formed upward. At least one notch groove 46 'is formed, and when the insertion leg 22' passes through the through hole 44 ', the insertion leg 22'
The bulging portion 26 'connected to the end of the notch pushes the notch groove 46'. When the bulging portion 26 'passes through the through hole 44', the cutout groove 46 'returns to the original state, so that the bulging portion 26' cannot pass through the through hole 44 'from the opposite direction. The male hook member 12 'is inserted into a rotatable female hook member 14'.

[0004]

A disadvantage of this type of conventional pivot hook is that the notch groove 46 'is provided.
This is a structural weak point of the insertion seat 30 '. That is, if the rotary hook is used for a long time in a situation where the weight applied to the rotary hook is sometimes changed, the notch groove 46 'is deteriorated, and the female hook member 14' is damaged from the notch groove 46 '. Easier to do.

Further, the hook body 18 'of the male hook member 12' and the elastic engaging tongue 20 'are connected only by the elasticity of the elastic engaging tongue 20'.
Open and close the opening between them. Therefore, the hook body 1
When a heavy object is placed on the hook 8 ', most of the load is applied to the hook body 18', and the elastic engagement tongue 20 'has almost no load receiving action.

Further, the male hook member 12 'is rotatably connected to the female hook member 14', and the center of gravity of the object moves when the user handles the object with the rotating hook attached thereto. Heavyweight male hook member 1
The direction of the acting force on 2 'also varies accordingly, so that it often happens that it strikes the elastic tongue 20', so that the elastic tongue 20 ' The hook body 1 ′ is shifted from the direction of the plane limited by the
A situation occurs in which the object hung on 8 'comes off the male hook member 12'.

In view of the above-mentioned drawbacks found in the prior art, the present inventor has conducted intensive studies based on many years of experience, and as a result, has been able to effectively solve the above-mentioned drawbacks of the known turn hooks. Develop and provide this. That is, the present invention, after connecting the male hook member to the female hook member,
It is an object of the present invention to provide rotating hooks that do not come off from each other even when subjected to an external force. Another object of the present invention is to provide a rotating hook having an increased force for receiving the load of the male hook member. It is another object of the present invention to provide a rotating hook in which an object hooked on a male hook member does not easily come off the male hook member. It is another object of the present invention to provide a rotary hook in which an elastic engagement arm of a male hook member is pressed only from a single direction and is not pressed from multiple directions. Still another object of the present invention is to provide a rotary hook having a simple structure and easy assembly.

[0008]

SUMMARY OF THE INVENTION A pivot hook according to the present invention comprises:
A female hook member; and a male hook member rotatably coupled to the female hook member. The female hook member includes a coupling seat and a hook attachment portion connected to the coupling seat. A lateral through hole is formed in an abdomen of the coupling seat, and A coupling hole is formed between the through hole and the lower wall, and a protruding pressing leg is formed on the upper wall of the through hole.

The male hook member includes a hook body provided on a hook edge seat on an upper surface, an end of an elastic engagement arm connected to a bottom face of the hook edge seat, and a hook edge seat. A plurality of engaging legs provided on the upper surface in the axial direction, a groove-shaped space extending in the axial direction is formed between the plurality of engaging legs, and on the outer wall at the upper end of each engaging leg, An engaging ridge is provided outwardly. Further, an engaging concave groove formed by integrally forming two grooves having different heights is provided on the inner wall of the free end of the hook body of the male hook member. Is formed so as to integrally connect two different blocks to each other.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the features and advantages of the present invention will be described in more detail with reference to specific embodiments of the present invention. As disclosed in FIGS. 3 and 8, the pivoting hook according to the embodiment of the present invention includes a female hook member 1 and a male hook member 2 rotatably coupled to the female hook member 1. I do.

As shown in FIGS. 4 and 5, the female hook member 1 has a cylindrical coupling seat 1 having a conical upper end.
0, a main body arm 11 having main body arm edges 110 and 112 whose both ends are curved downward in an arc shape, and link arms 12 and 13 having both ends 120, 122, 130 and 132, respectively. Hook attachment part 1
4. The link arms 12 and 1
3 are connected to the outer wall 100 of the coupling seat 10, and the other arm edge 120, 130
130 is an arm edge 1 at both ends of the main body arm 11.
10 and 112 are connected to each other, thereby
And the connection seat 10, a hollow portion S is limited, and a hook such as a belt-like string is attached to the hollow portion S.

Further, a through hole 101 is formed in the abdomen of the connecting seat 10 in a lateral direction, and a top wall 101a of the through hole 101 is formed.
A protruding pressing leg 102 is formed at the center of the pressing leg 102, and a leg end 103 at the tip of the pressing leg 102 is formed in a conical shape. In addition, a connection hole 104 is formed along the axial direction of the connection seat 10 between the bottom 10a of the connection seat 10 and the lower surface wall 101b of the through hole 101, and the connection hole 104 It is drilled so as to be located on the same axis as the leg 102.
Furthermore, the hole wall 104a of the coupling hole 104 is
Is formed so as to form an inclined surface whose diameter is reduced upward from the bottom surface 10a of the base member.

As shown in FIGS. 6 and 7, the male hook member 2 has a hook body 20 having a lower end formed in a piece shape.
A hook edge seat 21 formed on the upper surface of the hook body 20; and a plurality of, two in the embodiment shown in the drawings, two engaging legs 22 erected in the axial direction on the upper surface of the hook edge seat 21. , 2
3 and an elastic engagement arm 24 connected to the bottom surface of the hook edge seat 21 and connected to the upper edge of the hook body 20.

A groove-shaped space 25 is provided between the engaging legs 22, 23, and outer wall portions 22a, 23 of the engaging legs 22, 23 are provided.
At the upper end of the hook body 20 are formed engaging projections 22b and 23b, whose lower part is thicker and whose upper part is thinner toward the outside, and the inner wall of the free end 200 of the hook body 20 has different heights. Two engagement block portions 242 having different heights are provided on the outer wall of the edge 240 of the elastic engagement arm 24 at the same time, provided with engagement recess grooves 202 and 204 formed by integrally connecting the two groove portions. , 244,
Further, the shapes of the engagement block portions 242 and 244 are formed so as to be integrally connected so that they can be fitted into the engagement groove portions 202 and 204.

When assembling the rotary hook according to the embodiment of the present invention, as shown in FIGS. 3 and 8, the engaging legs 22, 23 are inserted into the coupling holes 104 of the female hook member 1. When the connecting legs 22 and 23 enter the connecting hole 104, the connecting protruding edges 22b and 23b come into contact with the hole wall 104a of the connecting hole 104, and the grooved space 25 contracts due to the inclined surface of the hole wall 104a. In order to make the
2b and 23b are pressed, and the engaging legs 22 and 23 approach each other. That is, in this case, the space for moving the engaging legs 22 and 23 so as to shift so that they approach each other is set to the engaging leg 2.
A groove space 25 between 2 and 23 will be provided.

When the engaging ridges 22b and 23b enter the through hole 101 of the female hook member 1, the force pressing the engaging ridges 22b and 23b is immediately released, and the engaging leg is released. Due to the elastic action of 22, 23 itself, the engagement leg 2
2, 23 return to the original position. At this time, the engaging concave and convex edges 22b and 23b are formed in the through holes 1 around the opening of the coupling hole 104.
01 on the lower surface wall 101b. At the same time, pressing leg 1
The leg end 103 of 02 presses the upper inner wall of the engaging legs 22 and 23 (as disclosed in FIG. 8). Therefore, the inner walls of the engaging legs 22 and 23 cannot approach each other due to the contact with the pressing leg 102. In addition to this, the engaging legs 22 and 23 do not come off from the coupling holes 104 due to the engaging action in which the engaging projections 22b and 23b are locked to the lower surface wall 101b. Therefore, the male hook member 2 is rotatably and securely connected to the female hook member 1 without coming off.

Further, the elastic engagement arm 24 of the male hook member 2 maintains a state in which it is in contact with the hook main body 20 in a state where it is not subjected to an external force. That is, the engagement block portions 242 and 244 of the elastic engagement arm 24
The engaging arm ends 24 of the elastic engaging arm 24 fit into the engaging concave grooves 202 and 204 of the hook body 20, respectively.
0 and the free end 200 of the hook body 20 maintain the connection relationship. In this case, the engagement block portions 242, 244 formed in different shapes from each other are fitted into the engagement concave grooves 202, 204 having different heights (disclosed in FIGS. 3 and 8).

Therefore, the elastic engagement arm 24 is pressed only in the direction extending from the plane 206 defined by the hook body 20 and moves displaced along the direction perpendicular to the plane 206. I will not do it. When a heavy object is hung on the hook body 20, the edge 240 of the elastic engagement arm 24 is engaged with the free end 200 of the hook body 20, so that the elastic engagement arm 24 is also attached to the hook body 20. Has the effect of resisting the pulling force due to the weight applied to the body.

The specific embodiments of the present invention disclosed above are for explaining the effects and features of the present invention. The engagement relationship between the block portion and the engagement groove portion of the hook body may be interchanged, and the elastic engagement arm may be provided with an engagement groove portion, the hook body may be provided with an engagement block portion, or may be engaged by any other known method. Regardless of any modification or modification completed by applying the disclosure of the present invention, such as making a change to achieve a combined state, all modifications and spirits within the spirit and scope disclosed in the present invention shall be subject to the claims. Included in the range.

[0020]

As can be seen from the above disclosure, the present invention has the following effects. The present invention relates to the above-described engagement leg 2.
2, 23 can be easily and quickly engaged with the coupling seat 10, and the male hook member 2 can be easily and quickly coupled to the female hook member in a freely rotatable manner.
Further, the pressing leg 102 of the coupling seat 10 and the engaging legs 22, 2,
2, the connection between the male hook member 2 and the female hook member 1 is very strong and stable, and the weight of the male hook member or the strength against load is increased. Can be Further, by the engagement of the engagement blocks 242, 244 and the engagement recesses 202, 204, the elastic engagement arm 24 also has the effect of receiving a load against the pulling force due to the weight. The force receiving the load is increased against the pulling force due to the weight. At the same time, the hook body 2
Even when the action of the force applied to the hook body 20 deviates from the axial direction, the elastic engagement arm 24 receives a shock and moves in a direction perpendicular to the direction of the limited plane 206 of the hook body 20, It does not occur that the object hooked on the hook body 20 comes off the hook body 20 from the position where it comes into contact with the free end 200 of the hook body 20.

[Brief description of the drawings]

FIG. 1 is a front view of a conventional rotating hook.

FIG. 2 is an exploded view in which a conventional rotation hook is partially omitted.

FIG. 3 is a perspective view of a rotation hook showing the embodiment of the present invention.

FIG. 4 is a front view of a female member of a turning hook showing the embodiment of the present invention.

FIG. 5 is a sectional view of the female hook member taken along line AA in FIG. 4;

FIG. 6 is a front view of a male hook member of the rotating hook showing the embodiment of the present invention.

FIG. 7 is a rear view of the male hook member of the rotating hook showing the embodiment of the present invention.

FIG. 8 is a front view of a rotation hook showing the embodiment of the present invention.

[Explanation of symbols]

 12 'male hook member 14' female hook member 18 'hook body 20' elastic engaging tongue 22 'insertion leg 26' bulging portion 30 'insertion seat 44' through hole 46 'notch groove 1 female hook member 2 male hook member DESCRIPTION OF SYMBOLS 10 Joint seat 10a Bottom part of joint seat 100 Outer wall 101 Through hole 101a Upper wall 101b Lower wall 102 Pressing leg 103 Leg edge 104 Joint hole 104a Hole wall of coupling hole 11 Body arm part 110, 112 Body arm edge 12, DESCRIPTION OF SYMBOLS 13 Link arm part 120, 130 Link arm end part 122, 132 Link arm end part 14 Hook attachment part 20 Hook main body 200 Free end 202, 204 Engagement concave groove part 21 Hook end edge seat 22, 23 Engagement leg 22a, 22b Outer wall portion 22b, 23b Engagement convex edge 24 Elastic engagement arm 240 Engagement arm end edge 242 244 engagement block 25 grooved space S hollow

Claims (5)

(57) [Claims] 1. A connecting member, a female hook member constituted by a hook attaching portion connected to an outer wall of the connecting member, a hook main body, and a plurality of engaging legs provided on an upper end of the hook main body. And a male hook member constituted by an elastic engagement arm connected to the upper end of the hook body,
A horizontal through hole is formed in the abdomen of the coupling seat, a protruding pressing leg is formed on an upper wall of the through hole, and a lower surface of the through hole is formed from a bottom surface of the coupling seat. A coupling hole is drilled between the plurality of engagement legs while reaching the wall, and at the same time, a groove-like space is formed between the plurality of engagement legs, and an engagement convex edge portion is formed on an outer wall at an upper end thereof outward. The free end of the hook body freely engages with the end of the elastic engagement arm. 2. An engaging concave edge formed by integrally forming two grooves having different heights from each other at an inner wall of a free end of the hook body, and a height of the engaging concave edge is provided at an end of the elastic engaging arm. 2. An engagement block portion formed by integrally connecting two different blocks of the same to each other is provided, and the engagement block portion is fitted into the engagement concave groove portion. Rotating hook. 3. The distal end of the pressing leg is formed in a conical shape, and the engaging leg of the male hook member passes through the coupling hole and is inserted into the through hole of the female hook member by the engaging convex edge. Then, the tip of the pressing leg is inserted between the upper ends of the engaging legs and presses it, so that the plurality of engaging legs do not move in the opposite directions and approach each other.
The turning hook according to claim 1 or 2, wherein: 4. The hook attachment portion of the female hook member is composed of a main body arm having a main body arm edge and two link arms having a link arm edge. 4. A pivoting hook according to claim 1, wherein one end of each of the parts is fixed to the coupling seat and the other end is fixed to the edge of the main body arm. 5. The turning hook according to claim 4, wherein the hook attachment portion is formed integrally.