JP4866766B2 - hook - Google Patents

Description

The present invention relates to a carabiner or eggplant-like hook, and more particularly to a type in which an opening / closing member that opens and closes an opening portion of a hook body is opened outward.

Carabiner and eggplant-shaped hooks have been used not only for mountain climbing and hanging during article transportation, but also for example, assembled on a ring of a decorative accessory chain. The basic structure of such a hook is that the hook body is substantially annular and partly open, and the base shaft can be rotated to the shaft hole provided at one end of the open part. It is common to have an opening / closing member that can be attached to form an endless annular body together with the hook body and that can be rotated to the inside of the open portion.

However, in recent years, due to the diversification of usage forms of this type of hook, a type in which the opening / closing member can be opened to the outside of the hook body has come to be used. In the case of such a type of hook, if the opening / closing member opens against the user's intention, the locked body inside the hook body, for example, the ring at the end of the chain may easily come out. In many cases, this type of hook is provided with an opening / closing mechanism for the opening / closing member.

As this kind of opening prevention mechanism, for example, as shown in Patent Document 1, a cylindrical member having a threaded inner surface is used, and the free end of the opening / closing member is locked to the locking portion of the hook body. Some hook bodies are also threaded so that they can be covered from above.

Japanese Patent Laid-Open No. 2000-2227

However, the opening / closing structure for the opening / closing member as described above makes it possible to open or close the opening / closing member by rotating the cylindrical member many times when the object to be locked is attached to or detached from the hook. Of course, the operation is not only very troublesome, but the structure is complicated due to the attachment of the cylindrical member, and there is a problem that the weight is greatly increased and the cost is increased. It was.

The present invention has been made in view of the above-described conventional problems, and provides a hook that has a simple structure and that can prevent a significant increase in weight and cost because of a mechanism for preventing the opening and closing member from opening. The purpose is to do.

Hook 1 according to a first aspect of the present invention, the rotary hook body 2 has an open portion part, the axis of the proximal end to the shaft hole 5 provided at an end portion of one side of the open portion in a substantially circular It is possible to form an endless annular body together with the hook body 2 so as to be able to be attached, and an opening / closing member 3 that can be opened to the outside of the open part. The opening / closing member 3 is opened to the inside in the endless annular body state. make it possible that it can accept Hikakaritometai, the shaft hole 5, the opening and closing member 3 allows rotation opening, and wherein the closing member 3 in a state of endless annular body slides I along its axial direction for movement and that of the long hole shape, the ends of the other side of the opening portion to form a recess 8 of the recessed cross section, said tip portion opposite the free end and the base end of the closing member 3 the fit can be a convex cross section of the distal end portion 3a is formed in the recess 8, before The closing member 3 is slid along the long hole-shaped shaft hole 5, the convex distal end portion 3a with respect to the recess 8 by the sliding movement, the recess-projection fitting or possible to perform its release, A hook 1 which is on the proximal end side of the opening / closing member 3 and is provided with a biasing member comprising a pin 7 disposed inside the opening / closing member 3 and a spring 11 which projects and biases the pin 7; The pin 7 as the urging member is brought into contact with the outer surface of the portion of the hook body 2 where the shaft hole 5 is provided by a spring 11, and the opening / closing member in a direction that hinders the release of the uneven fitting by the reaction of this contact. 3, and a protrusion 3 b that protrudes toward the inside of the hook body 2 is provided on the base end side of the opening / closing member 3 that is attached to the shaft hole 5 of the hook body 2. And endless together with the hook body 2 When the convex tip portion 3a that forms the shape is in a concave-convex fitting state with respect to the concave portion 8, the inner side of the hook main body 2 protrudes to the inside of the hook main body 2 and faces the portion 2a of the hook main body 2 at the corresponding portion. Is divided into two or almost bisects, and the inside of the hook body 2 is bisected or almost bisected so as to be held through a separate locked body .

The basic shape, structure, material, position, length, and the like of the hook body 2 may be any of various known forms and structures. The opening / closing member 3 may have a known basic shape, structure, and material, but the length of course corresponds to the length of the open portion of the hook body 2 . Furthermore the locked member also as described above, climbing equipment and goods transportation during hanger, well rings or the like of a chain of ornament, the user by utilizing the hook body 2 is annular Anything may be used as long as it is selected to be locked.

Further, the shape of the long hole of the shaft hole 5 is not limited to the oval shape described in the embodiments described later, and the opening / closing member 3 is slid and moved from the state where the open part of the hook body 2 is closed. Any shape can be used as long as the shape is obtained.

Further, the shape of the hook body 2 and the opening / closing member 3 for fitting the recesses and projections is not limited to a literally rectangular cross section, and may be a cross-sectional shape such as a triangle or a trapezoid. It may have a hole-like structure only at the apex or top surface, and in this case, the convex portion may have a corresponding shape (conical shape, truncated conical shape, etc.).

In the hook 1 of the present invention, the proximal end of the closing member 3, characterized by comprising providing a protrusion 3b that protrudes in the recess-projection fitting state to the inside of the hook body 2.

When the inside of the hook main body 2 is divided into two or almost bisected by the protrusion 3b of the opening / closing member 3 as described above, separate objects to be locked can be passed through the hook main body 2 and can be held separately. For example, a usage form in which one side of the large diameter is hooked on the belt and a key, a key bundle, or the like is passed through the other side of the small diameter can be easily configured.

According to the present invention, the hook 1 of the type that can open the opening / closing member 3 to the outside of the hook body 2 has a simple structure and no significant weight increase due to the mechanism for preventing the opening / closing member 3 from opening. Cost increase can also be suppressed. Since put out open and not slide the closing member 3, the opening and closing member 3 is inadvertently opened such that no in use, can reliably be obtained. Furthermore, the chain ring, lobe, key, and key bundle to be connected to the endless annular body formed by the hook body 2 and the opening / closing member 3 can be relatively easily put in and out, and the workability is improved. .

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Incidentally shown only carabiner shaped hook in the following examples will be described, the present invention is not limited thereto, the basic shape of the hook body 2, structure, material, providing an open portion position, etc. length Any known forms and structures may be used. The opening / closing member 3 may have a known basic shape, structure, and material, but the length of course corresponds to the length of the open portion of the hook body 2 . Furthermore the locked member also as described above, climbing equipment and goods transportation during hanger, well rings or the like of a chain of ornament, the user by utilizing the hook body 2 is annular Anything may be used as long as it is selected to be locked.

FIG. 1 is an exploded perspective view of an embodiment of a hook according to the present invention, and FIG. 2 is a side view of a use operation state. In the illustrated hook 1, 2 is a hook body, 3 is an opening / closing member, and the hook 1 is mainly composed of these two parts.

Hook 1 of this embodiment has a hook body 2 eggplant or gourd-shaped planar shape with a substantially circular, a portion left open portion 4, the hook body 2 at the end of one side of the opening portion 4 A shaft hole 6 and a pin 7 at the base end are pivotally attached to the provided shaft hole 5 so that an endless annular body can be formed together with the hook body 2. The shaft hole 6 of the opening / closing member 3 may be either a pin 7 fitted in a fixed manner or a moderately loose passage, but the shaft position of the pin 7 does not deviate greatly. Is desirable. As described above, the side surface shape of the hook body 2 is not limited to the eggplant or gourd shape as illustrated, and various known shapes such as a D shape mainly used in an eggplant can be adopted. Not limited at all. The opening / closing member 3 opens to the outside of the open part of the hook body 2 so as to be able to receive a locked body such as a ring through the open part 4 inside the endless annular body. The structure and the like are not limited to the illustrated example, and various structures can be adopted.

The shaft hole 5 of the hook body 2 permits the opening / closing of the opening / closing member 3 (see FIG. 2A), and the opening / closing member 3 slides along the axial direction when the opening / closing member 3 is closed to form an endless annular body. It has a long hole shape so that it can move. The distance of this sliding movement needs to be determined in relation to the uneven fitting on the free end side of the opening / closing member 3 described later. The shape of the hook body 2 and the opening / closing member 3 for fitting the concaves and convexes is not limited to a literally rectangular cross section, but is rounded at a corner as shown in the figure, a triangle, a trapezoid, or the like. It may have a cross-sectional shape, and it may be a hole-like structure with only the apex or top surface portion leading to the outside on the concave side. In the case of such a structure, the convex side has a corresponding shape (conical shape, truncated conical shape, etc.).

That is, the opening / closing member 3 forms a recess 8 by forming the other end portion of the open portion 4 into a concave section (in the illustrated example, a groove shape), and a free end opposite to the base end of the opening / closing member 3. The front end 3a is formed in a convex cross-section that can be fitted into the recess 8 (projected in the example shown in the figure) so that the concave-convex can be fitted. The concave-convex fitting between the concave portion 8 and the distal end portion 3a of the opening / closing member 3 can be released and released . The shape of the long hole shape of the shaft hole 5 is not limited to the oval shape as shown in the figure, and the opening / closing member 3 can be slid and moved from the state where the open portion 4 of the hook body 2 is closed. Any shape can be used.

The reason why the concave groove in the illustrated example, more walls 8a is closing member 3 of the inner portion of the opening portion 4 prevents from entering into the hook body 2, the outer portion 8b of course closing member 3 This is to prevent spilling out of the groove 8.

Furthermore, the hook 1 of the present embodiment is provided with a groove portion 9 on the proximal end side of the opening / closing member 3, and an urging member comprising a pin 10 and a spring 11 is disposed in the groove portion 9. That is, in the attachment state of the opening / closing member 3 to the hook body 2 as described above, the pin 10 is brought into contact with the outer peripheral surface of the portion where the shaft hole 5 of the hook body 2 is provided by the spring 11 and the reaction of this contact is performed. The opening / closing member 3 is pressed and biased in a direction that prevents the above-described uneven fitting from being released. Note that this biasing means is not a groove, pin, or spring as shown in the figure , for example, a hole is provided along the axial direction of the opening / closing member, and a spring body such as a spring is loaded therein. It may be.

Further, the opening / closing member 3 of the present embodiment is provided with a protrusion 3 b that protrudes toward the inside of the hook body 2 at the base end that is a portion to be mounted in the shaft hole 5 of the hook body 2. This part protrudes to the inside of the hook body 2 in the state where the concave and convex fitting state as described above is an endless annular body, faces the part 2a of the hook body 2 at the corresponding part, and bisects the inside of the hook body 2 Alternatively, it is almost bisected (see FIGS. 2B and C).

In other words, when the inside of the hook body 2 is divided into two or almost in half as described above, separate objects to be locked can be passed through each of the hook bodies 2 and can be held so as not to go back and forth inside the hook body 2. This is because, for example, the large-diameter side of the hook body 2 is hooked on the belt, and the small-diameter side is passed with a key, a bundle of keys, or a ring or the like passing therethrough. Is easy to configure and convenient. Of course, even a large hook used in a vehicle can be used in the same way, which is also convenient. That is, it can be used like a so-called eggplant.

In the case of a structure similar to a so-called well-known eggplant, a fixed annular portion will be provided on the upper side of the hook body 2 in FIG. 1 (which may be the lower side).

Finally, the attaching / detaching operation of the opening / closing member 3 in this embodiment will be described with reference to FIG.

First, as shown in FIG. 2A, the opening / closing member 3 is in an open state. To close this, the pin 7 of the opening / closing member 3 is slid to the opposite side of the shaft hole 5. That is, the pin 7 in Figure 2A is shifted to the right in the shaft hole 5, moves it anti to the urging force of the spring 11 so as to gather the left. Although it is efficient to perform this operation after the state shown in FIG. 2B or close to it, this need not be the case.

In such a state, the distal end portion 3a of the free end of the opening / closing member 3 moves to the shaft hole 5 side with respect to the outer portion 8b of the concave groove 8, and can get over the outer portion 8b. Then, when the opening / closing member 3 is rotated as it is, the tip 3 a comes into contact with the wall 8 a of the inner portion of the concave groove 8, and no more can enter the hook body 2. If the application of the force of sliding the opening / closing member 3 in that state is stopped, the opening / closing member 3 moves in the direction away from the shaft hole 5 by the urging force of the spring 11 along its own axial direction, and the tip 3a is moved. The opening / closing member 3 cannot be opened outward because the groove 8 is firmly fitted in the groove 8. In order to open the opening / closing member 3 to the outside, a procedure reverse to the above-described procedure may be performed. When the fitting between the tip 3a of the opening / closing member 3 and the groove 8 is released, the opening / closing member 3 can be freely opened outward.

Then, as shown in FIG. 2A, since the open portion 4 is greatly opened, a thick belt or the like that has been difficult to put inside the hook body 2 with the hook of this type can be easily put in, so that it can be easily taken out. Of course, those that have not had such problems will be easier to insert or remove.

1 is an exploded perspective view of an embodiment of a hook according to the present invention. Side view of the same operating state

DESCRIPTION OF SYMBOLS 1: Hook 2: Hook main body 2a: One part of hook main body 3: Opening / closing member 3a: The front-end | tip part of the free end of an opening / closing member 3b: Protrusion part of the base end side of an opening / closing member 4: Opening part 5: Shaft hole of a hook main body 6: Shaft hole of opening / closing member 7: Pin 8: Recess 8a: Wall of recess inner part 8b: Wall of recess outer part 9: Groove 10: Pin 11: Spring

Claims (1)

A hook body 2 that is substantially annular and partially open, and an endless annular body together with the hook body 2 by pivotally attaching a base shaft to a shaft hole 5 provided at one end of the open part. And opening / closing member 3 that can be opened to the outside of the open part, enabling opening and closing of the opening / closing member 3 to receive the locked body inside the endless annular state , the shaft hole 5, the allowed rotation opening and closing of the closing member 3, and the said closing member 3 in the state of an endless annular body shall like long hole shape can slid me along in the axial direction, the the end portion of the other side of the opening portion to form a recess 8 of the recessed cross section, said proximal end opposite the tip portion of the free end can fit into the recess 8 of a convex cross section of the tip of the closing member 3 part 3a is formed, the closing member 3 in the long hole-shaped axial hole 5 What is slid, the convex distal end portion 3a with respect to the recess 8 by the sliding movement, the recess-projection fitting, or a hook 1 which enables to perform the release thereof, of the closing member 3 An urging member comprising a pin 7 disposed inside the opening / closing member 3 and a spring 11 that urges and projects the pin 7 is disposed on the base end side, and the pin 7 as the urging member is hooked by the spring 11. The body 2 is brought into contact with the outer surface of the portion provided with the shaft hole 5, and the opening / closing member 3 is pressed and urged in a direction that prevents the release of the concave / convex fitting by a reaction of the contact, and the opening / closing member 3 A protrusion 3b that protrudes toward the inside of the hook body 2 is provided on the base end side, which is a portion to be attached to the shaft hole 5 of the hook body 2, and this part 3b forms an endless annular body together with the hook body 2. The convex tip 3 In the concave and convex engagement state of the concave portion 8, the inner portion of the hook body 2 projects into the hook body 2, faces the portion 2 a of the hook body 2 at the corresponding portion, and bisects or almost bisects the inside of the hook body 2. The hook 1 is characterized in that it can be held through a separate object to be divided into two or almost half .