Slide-type detachable hook

Abstract

The objective of this invention is to provide a hook that can be attached and detached with a single touch, allowing for smooth attachment and removal. [Solution] The hook has a hook body having a hook base and a hook key portion that is bent and connected from the hook base, and an opening / closing lever to which one end is connected via a rotating center installed on the hook base, and the opening / closing lever is rotationally biased in the direction of a contact point set on the hook key portion, wherein the opening / closing lever having a bent portion rotates with the extension of the opening / closing lever after the bent portion crossing the hook base.

Description

Technical Field

[0001] The present disclosure relates to hooks used in various places for household goods, industrial goods, sports and leisure goods, and office supplies.

Background Art

[0002] Conventionally, as hooks for daily life, outdoor activities, and sports, spring hooks typified by carabiners have been used. For the purpose of hanging nearby objects, many inventions have been made so that hooks with a carabiner structure can be used more easily, more quickly, or more safely.

[0003] For example, in Patent Document 1, the return link spring housed in the lever rod has a sliding contact end at the other end that slides on a spring receiving surface that is a curved concave surface, making the included angle outside the groove formed by the sliding contact end and the spring receiving surface an obtuse angle, so that the return link spring is less likely to fall out of the locking groove. As a result, it is a carabiner in which the lever part can rotate up to about 90 degrees wider, and the passing width of the insertion member is wide and easy to use.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, although the invention of Document 1 can widen the opening part, the difficulties associated with the use of conventional carabiners still remained regarding removal. For example, it is difficult to remove with one hand, and even when using both hands, when the lever rod of the hook is tilted inward, the hanging rod may get caught, the finger pressing the lever rod may interfere with the removal of the hanging rod, or the finger may be sandwiched between the lever rod and the carabiner body.

[0006] This disclosure aims to provide a hook that can be attached and detached smoothly. [Means for solving the problem]

[0007] The slide-detachable hook of the present disclosure has a hook body having a hook base and a hook key portion bent and connected from the hook base, and an opening / closing lever with one end connected via a rotation center installed on the hook base, wherein the opening / closing lever is rotationally biased in the direction of a contact point set on the hook key portion, and the opening / closing lever having a bent portion rotates with the extension of the opening / closing lever beyond the bent portion and the hook base crossing each other. [Effects of the Invention]

[0008] The slide-type detachable hook of this disclosure allows for smooth, one-touch attachment and detachment of the hook. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view of a hook according to the first embodiment of the present disclosure. [Figure 2] This is a plan view of a second embodiment illustrating how the hook of this disclosure is used and the specifications of the opening and closing lever. [Figure 3] This is a plan view of a third embodiment illustrating the specifications of the opening and closing lever of the present disclosure. [Figure 4] This is a plan view of a fourth embodiment illustrating how the hook of this disclosure is used. [Figure 5] This is a perspective view of a hook according to the fifth embodiment of this disclosure. [Figure 6] This is a perspective view of a hook according to the sixth embodiment of this disclosure. [Modes for carrying out the invention]

[0010] Hereinafter, an embodiment of the slide-attachable hook of this disclosure will be described with reference to the drawings.

[0011] Figure 1 is a perspective view of the hook 1 in the first embodiment of this disclosure. The hook 1 consists of a hook body 2 and an opening / closing lever 5. The hook body 2 consists of a hook base 3 and a hook lock portion 4 that is bent and connected to the hook base 3. In the drawings of the following embodiments, descriptions of the hook body 2, hook base 3, and hook lock portion 4 have been omitted to avoid complexity, but the configuration of the hook body is the same.

[0012] The opening / closing lever 5 has one end connected to the hook base 3 at the center of rotation 8. The center of rotation 8 is the rotation center of the entire opening / closing lever 5. The opening / closing lever 5 bends near the center from the center of rotation 8 to the tip 54 of the opening / closing lever, and when the opening / closing lever 5 is closed, the contour of the bent portion 53 contacts the inner circumference of the hook key portion 4 at the contact point 6. The part of the opening / closing lever 5 from the center of rotation 8 to the contact point 6 is called the opening / closing lever base 51, and the part from the contact point 6 to the tip 54 of the opening / closing lever is called the opening / closing lever extension 52. The opening / closing lever 5 is biased to rotate in the closing direction by a leaf spring 71 installed at the center of rotation 8.

[0013] The contact point 6 where the bent portion 53 of the opening / closing lever 5 and the hook lock portion 4 come into contact does not necessarily have to be a point contact; it may be a surface contact, or it may be a snap-fit ​​type contact that fixes the position of the opening / closing lever 5 when it is closed.

[0014] A slit 9 is provided in the hook base 3, allowing the opening / closing lever extension 52 to pass through. The opening / closing lever extension 52 passes through the slit 9 and protrudes to the outside of the hook base 3. The slit 9 allows the opening / closing lever 5, which intersects the hook base 3, to rotate freely, and also serves as a rotation guide for the opening / closing lever 5.

[0015] The tip 54 of the opening / closing lever may always protrude through the slit 9 and extend to the outside of the hook 1. On the other hand, when the bent portion 53 is in contact with the contact point 6, if the tip 54 of the opening / closing lever is inside the slit of the hook base, the effect is that the protrusion of the opening / closing lever extension is not noticeable except when opening or closing.

[0016] As long as the opening / closing lever 5 has the functions described above, it does not necessarily have to be square bar-shaped or round bar-shaped, and may be plate-shaped, lattice-shaped, or composed of a plurality of wire lines, or a combination thereof. A material that is difficult to deform is desirable.

[0017] The spring 7 attached near the rotation center portion 8 and biasing the opening / closing lever 5 in the closing direction is not limited to a leaf spring, and may be a coil spring, a torsion spring, a wire spring, a shape memory alloy spring, or the like.

[0018] In FIG. 1, a slit is formed in the hook base 3 to allow the opening / closing lever extension 52 to pass through. However, a space corresponding to the slit may be provided in the opening / closing lever extension, and the hook base 3 may be passed through it so as not to restrict the movement of the rotating lever during opening and closing.

[0019] A string through-hole 20 for hanging a strap or a rope is provided in the head of the hook base 3. In the head of the hook base 3, not limited to the string through-hole 20 as shown in FIG. 1, something that assists the use of the hook body or functions and decorations different from the use of the hook body may be attached. Or, nothing may be attached. In other words, it may be changed to be easy to use according to the use of the hook 1 or the preference of the user.

[0020] FIG. 2 is a plan view of the second embodiment of the present disclosure, explaining how the hook is used. In the following description, the object example for hanging the hook is a rod-shaped hanging rod 10, and a cross-sectional view of the hanging rod 10 is inserted in the figure. FIG. 2(a) shows the state when the hook 1 is hung on the hanging rod 10 or when the hook 1 is detached from the hanging rod 10, FIG. 2(b) shows the state when the hanging rod 10 pushes aside the opening / closing lever 5 and passes through, and FIG. 2(c) shows the state when the hook 1 is hung on the hanging rod 10 or when trying to remove the hook 1 from the hanging rod 10.

[0021] When hanging the hook 1 on the hanging rod 10, move the hook 1 while sliding it so that the hanging rod 10 moves relatively in the direction of the arrow in Fig. 2(a). By doing so, the relative positions of the hook 1 and the hanging rod 10 change in the order of Fig. 2(a), Fig. 2(b), and Fig. 2(c), and the hook 1 is hung on the hanging rod 10. First, the opening / closing lever base 51 of the opening / closing lever 5 that was in contact with the contact point 6 receives the pressure from the hanging rod 10, the opening / closing lever 5 starts to rotate, and moves away from the contact point 6. Eventually, as shown in Fig. 2(b), the distance between the contact point 6 and the opening / closing lever 5 becomes the distance through which the hanging rod 10 can pass through, and the hanging rod 10 enters into the hook 1. When the hanging rod 10 passes through the bent portion 53, the opening / closing lever 5 rotates back by the force of the spring 7 until it contacts the contact point 6 in the closing direction in the opposite direction, and reaches the state shown in Fig. 2(c).

[0022] On the contrary, when removing the hook 1 from the hanging rod 10, move the hook 1 while sliding it so that the hanging rod 10 moves relatively in the direction of the arrow in Fig. 2(c). By doing so, the relative positions of the hook 1 and the hanging rod 10 change in the order of Fig. 2(c), Fig. 2(b), and Fig. 2(a), and the hook 1 is detached from the hanging rod 10. First, the opening / closing lever extension 52 of the opening / closing lever 5 that was in contact with the contact point 6 receives the pressure from the hanging rod 10, the entire opening / closing lever 5 starts to rotate, and the opening / closing lever 5 moves away from the contact point 6. Eventually, as shown in Fig. 2(b), the space between the contact point 6 and the opening / closing lever 5 becomes the distance through which the hanging rod 10 can pass through, and the hanging rod 10 passes through the bent portion 53. After the hanging rod 10 passes through the bent portion 53, the opening / closing lever 5 rotates back by the force of the spring 7 until it contacts the contact point 6 in the closing direction, and reaches the state shown in Fig. 2(a).

[0023] As described above, without pressing and spreading the opening / closing lever 5 with a finger, simply by sliding the hook 1 in one direction, the hook 1 can be easily and quickly hung or removed. Since the opening / closing lever 5 only needs to be slid in a specific direction, it has the effect that it can be easily and quickly attached and detached even with one hand.

[0024] Figure 3 is a plan view of a third embodiment of the present disclosure, showing the specifications of the opening / closing lever 5. In this embodiment, the opening / closing lever extension 52 is curved. By curving it, the storage range of the hanging rod 10 within the hook lock is widened, and a larger diameter hanging rod 10 can be hung.

[0025] However, depending on the curvature, the opening / closing lever 5 may not move even if you try to slide and remove hook 1.

[0026] The dashed line A is a radius line passing through the center of rotation and an arbitrary point 41 on the outer circumference of the contour of the opening / closing lever extension 52. The dashed line B is the tangent to the outer circumference at the aforementioned arbitrary point 41. If the angle formed by radius line A and tangent line B, and the angle facing the hook base side, is taken as the tangent angle β, then if the tangent angle β is 90 degrees or less, the opening / closing lever 5 will not move even if you try to slide the hook 1 off. It has been found that even if the opening / closing lever extension 52 is pressed in the removal direction by the hanging rod 10, if the tangent angle β is 90 degrees or less, a rotational moment in the closing direction, opposite to the opening direction, is generated in the opening / closing lever 5.

[0027] The tangent angle β may be approximately the same at any point on the outer edge of the opening / closing lever extension 52, or it may vary at each arbitrary point 41, but at any arbitrary point, the angle must be 90 degrees or greater.

[0028] If the extension portion 52 of the opening / closing lever is roughly straight, as in the embodiment shown in Figure 2, then the bending angle α of the opening / closing lever at the bent portion 53 should be 90 degrees or more. This is because if the bending angle α is 90 degrees or more, the tangent angle β will be obtuse at any other arbitrary point on the extension portion 52 of the opening / closing lever, and the opening / closing lever 5 will open smoothly.

[0029] Furthermore, it has been discovered that the force required to move the opening / closing lever 5 can be adjusted not only by the elastic force of the spring, but also by changing the tangent angle β. In other words, if an opening / closing lever is provided that has the same tangent angle β of 90 degrees or more at any arbitrary point along the outer circumference of the opening / closing lever extension 52, a small tangent angle β results in a hook that is difficult to remove, that is, does not come off easily, while a large tangent angle β results in a hook that is easy to remove, that is, easy to detach.

[0030] In Figure 3, a knob 30 is attached to the tip of the opening / closing lever 5. The opening / closing lever 5 can be opened by pulling the knob 30. For example, in the case of a string that cannot be pressed firmly on the opening / closing lever 5, or a weak hanging rod 10, the opening / closing lever 5 can be opened by pulling the knob 30, and the string or hanging rod 10 can be hung. The same applies when removing the string.

[0031] By appropriately shaping and attaching the knob, it is possible to hold the hook body of this disclosure with one hand and pull the knob with the fingers of the same hand. Alternatively, instead of the knob 30, the protruding portion of the opening / closing lever extension 52 from the hook body 2 may be made longer to provide the function of the knob described above.

[0032] Figure 4 is a plan view of a carabiner-type hook according to a fourth embodiment of the present disclosure, illustrating how the hook is used. In the carabiner-type hook, the end of the hook base 3 curves toward the end of the hook lock portion 4 to form a rotation center 8, which is connected to the opening / closing lever 5. Although not shown in the figure, a spring is installed in the rotation center 8 that always acts in the direction of closing the opening / closing lever.

[0033] The opening / closing lever 5, connected to the rotating center 8, curves significantly toward the hook base 3 at the position of the contact 6 at the tip of the hook lock part 4, and is structured to pass through the slit 9 installed in the hook base 3 and rotate freely.

[0034] The hanging rod 10a indicates the position when the hook 1 is attached to the hanging rod 10 or when the hook 1 is detached from the hanging rod 10. The hanging rod 10b, shown by the dotted line, indicates the position when the hanging rod 10 passes the opening / closing lever 5 of the hook 1. The hanging rod 10c indicates the position when the hook 1 is attached to the hanging rod 10 or when attempting to remove the hook 1 from the hanging rod 10. The actions and functions of the hanging rod, hook body, and opening / closing lever when attaching and detaching the hook to the hanging rod 10 are the same as those described in Figure 2 and are therefore omitted here.

[0035] In Figure 4, the dashed line A is a radius line passing through the center of rotation and an arbitrary point 41 on the outer edge of the opening / closing lever extension 52, and the dashed line B is a tangent to the outer circumference of the opening / closing lever extension 52 at the aforementioned arbitrary point 41. If the angle formed by radius line A and tangent line B that faces the hook base side is called the tangent angle β, then if the tangent angle β is 90 degrees or more, smooth removal is possible. The same principle as in Example 3 is at work in Example 4.

[0036] The tangent angle β may be approximately the same at any point on the outer edge of the opening / closing lever extension 52, or it may vary at each arbitrary point 41, but at any arbitrary point, it must be an obtuse angle.

[0037] Furthermore, similar to the case of Example 3, the force required to move the opening / closing lever 5 can be adjusted by changing the tangent angle β. In other words, if an opening / closing lever is provided that has the same tangent angle β of 90 degrees or more at any arbitrary point along the outer circumference of the opening / closing lever extension, a small tangent angle β results in a hook that is difficult to remove, i.e., does not come off easily, while a large tangent angle β results in a hook that is easy to remove, i.e., easy to detach.

[0038] Figure 5 is a perspective view of a hook according to a fifth embodiment of the present disclosure. In Figure 5, the opening and closing lever is made of a wire spring 73. A single spring wire is bent to form a wire spring with a pair of legs. The ends of the pair of legs are bent at alternating positions, and the tips are bent into a key shape to form a bent terminal 74. The bent terminal 74 is inserted into and fixed into a pair of insertion holes 81 that form the rotation center of the hook base. The pair of insertion holes 81 are set up offset from each other so that the hole axes do not overlap. When the hook is viewed in plan, the pair of insertion holes are set up in offset positions that are relatively close together.

[0039] In this type of wire spring, the two insertion holes 81 at the base of the wire spring are the centers of rotation, so there is no single axis of rotation. The bent terminals 74 of the wire spring 73 are forcibly inserted into the small holes located at offset positions on both sides of the hook base 3, and the elasticity of the wire spring 73, which tries to eliminate the strain, becomes the force that closes the opening / closing lever 5. In this disclosure, the term "axis of rotation" or "center of rotation" is used to refer to a center of rotation that has multiple centers of rotation at offset positions and behaves as if it were a single axis of rotation.

[0040] Furthermore, the wire spring in Figure 5 may be used only at the base of the opening / closing lever, or the entire opening / closing lever may be made of wire springs with a pair of legs attached as reinforcing members at the bent parts, etc.

[0041] Figure 6 is a perspective view of a sixth embodiment of the present disclosure. A wire spring similar to that in Figure 5 is used, but the opening / closing lever extension 52 is different. The two extensions of the opening / closing lever 5 cross both sides of the hook base 4 and meet at the tip 54 of the opening / closing lever. This structure has the effect of not hindering the rotation of the opening / closing lever when it is opened or closed. In this configuration, the hook base acts as a rotation guide for the opening / closing lever.

[0042] Although embodiments of this disclosure have been described in detail above, this disclosure is not limited to the embodiments described above, and various modifications and improvements are possible without departing from the gist of this disclosure. Needless to say, all or part of each of the above embodiments can be combined as appropriate and in a non-contradictory manner.

[0043] The backpack relating to this disclosure can be implemented in the following configurations (1) to (6).

[0044] (1) A hook comprising a hook body having a hook base and a hook key portion bent and connected from the hook base, and an opening / closing lever having one end connected via a rotating center installed on the hook base, wherein the opening / closing lever is rotationally biased in the direction of a contact point set on the hook key portion, characterized in that the opening / closing lever having a bent portion rotates with the extension of the opening / closing lever beyond the bent portion and the hook base crossing each other.

[0045] (2) The slide-detachable hook according to configuration (1), wherein when the opening / closing lever extension and the hook base intersect and rotate, the opening / closing lever extension passes through a slit provided in the hook base or on both sides of the hook base.

[0046] (3) The slide-detachable hook according to configuration (2) above, wherein when the opening / closing lever is in contact with the contact point, the tip of the extension of the opening / closing lever is inside the slit.

[0047] (4) The slide-detachable hook according to configuration (2) above, wherein the tip of the extension of the opening / closing lever is always located outside the hook body.

[0048] (5) The slide-detachable hook described in configuration (4) above, wherein a knob is installed at the tip of the extension of the opening / closing lever.

[0049] (6) The slide-detachable hook according to configuration (1) or (2) above, wherein the angle formed by the radius line passing through the center of rotation and an arbitrary point on the contour of the extension of the opening / closing lever and the tangent line to the contour at the arbitrary point is defined as the tangent angle β on the side facing the hook base, and the tangent angle β is 90 degrees or more. (7) The slide-detachable hook according to configuration (6), wherein when the opening / closing lever is in contact with the contact point, the tangent angle β is approximately constant at all of the arbitrary points on the contour of the opening / closing lever extension on the closed loop formed by the hook body and the opening / closing lever extension, excluding the bent portion. [Explanation of Symbols]

[0050] 1 hook 2 Hook body 3 Hook base 4. Hook Key Section 5. Opening / closing lever 51 Opening / closing lever base 52 Opening / closing lever extension 53. Bending section 54. Tip of the opening / closing lever 6 contacts 7 springs 8 rotations center 9 slits 10 Hanging rods 20 holes for threading the laces 30 Knobs 40 Intersection of the outer contour of the extension of the opening / closing lever and the inner contour of the back of the hook 41 Any point on the outer contour of the extension of the opening / closing lever 71 Leaf spring 72 Torsion spring 73 wire spring 74 Folding terminals 81 insertion holes α Bending angle of the opening / closing lever β tangent angle

Claims

1. A sliding hook comprising a hook body having a hook base and a hook key portion bent and connected from the hook base, and an opening / closing lever having one end connected via a rotation center installed on the hook base, wherein the opening / closing lever is rotationally biased in the direction of a contact point set on the hook key portion, characterized in that the opening / closing lever having a bent portion rotates with the extension of the opening / closing lever beyond the bent portion and the hook base crossing each other.

2. The slide-on / off hook according to claim 1, characterized in that when the opening / closing lever extension and the hook base intersect and rotate, the opening / closing lever extension passes through a slit provided in the hook base or on both sides of the hook base.

3. The slide-detachable hook according to claim 2, characterized in that when the opening / closing lever is in contact with the contact point, the tip of the extension of the opening / closing lever is inside the slit.

4. The slide-on / off hook according to claim 2, characterized in that the tip of the extension of the opening / closing lever is always located outside the hook body.

5. The slide-detachable hook according to claim 4, characterized in that a knob is installed at the tip of the extension of the opening / closing lever.

6. The slide-detachable hook according to either claim 1 or 2, characterized in that, of the angles formed by the radius line passing through the center of rotation and an arbitrary point on the contour of the extension of the opening / closing lever and the tangent line to the contour at the arbitrary point, the angle facing the base of the hook is defined as 90 degrees or more.

7. The slide-detachable hook according to claim 6, characterized in that when the opening / closing lever is in contact with the contact point, the tangent angle β is approximately constant at all arbitrary points except the bent portion in the contour of the opening / closing lever extension on the closed loop formed by the hook body and the opening / closing lever extension.

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