KR20020013732A - The hook which is used in the pole and others - Google Patents

Abstract

PURPOSE: Provided is a hook for hanging on a pole, which develops strong fastening force for cramping a pole or the like with big force. CONSTITUTION: The hook for hanging on a pole has a hook part(11) which extends from a lower side toward an upper side of the pole or the like(10) and turns around at the upper side and again extends toward the lower side so as to generally surround the pole or the like(10), and at least three projection parts(15), etc., provided inside the hook part(11) so as to contact with an outer periphery face of the pole or the like(10) for catching the pole or the like(10). Each of the projection parts(15) has a supporting part(16) which is linearly contacted with the outer periphery surface of the pole or the like and is parallel with an axial direction of the pole or the like.

Description

Hook to use for poles {THE HOOK WHICH IS USED IN THE POLE AND OTHERS}

Technical Field

The present invention relates to a hook that can be used by hanging or hanging on a pole or the like and has a fixed function.

Description of the Prior Art

For example, an apparatus for hanging or drying various kinds of clothes is used by hanging a hook on a laundry pole or the like, but the hook is easy to move due to its weakness even if the hook is not or even weak, and falls in the wind in some cases. There is concern. For this reason, conventionally, the mechanism which pushes a pole to the inside of a hook is proposed, as can be seen from Japanese Patent Application No. 58-119388 or 62-23698. However, with such a mechanism, the hook is easy to move, and when the wind is shaken, the fixing effect cannot be maintained.

On the other hand, the hook of Japanese Unexamined Patent Publication No. 4-32689 has an inner diameter part slightly larger than the diameter of the rod to be dried, and forms two parts which hit the inner side, thereby pressing the pole deeply by the two hit parts. It is considered to have a constitution and to improve the effect to some extent with simplicity. However, if the inner diameter is slightly larger than the diameter of the pole, there is insufficient structural margin, stress is concentrated at one point, and there is a fear of breakage, and sufficient fixing force cannot be expected at two colliding parts. In order to obtain, it is considered that it is necessary to considerably increase the size and provide a sturdy structure.

The present invention has been made in view of the above-described points, and an object thereof is to provide a rod for hooking, which exhibits a strong fastening force for fastening a large current. Another object of the present invention is to provide durability that is hard to be damaged even after repeated detachment to a large current. Yet another object of the present invention is to facilitate the attachment and detachment to the large convection.

1A is a perspective view of a hanger to which Embodiment 1 of a hook used for a pole and the like according to the present invention is applied;

Figure 1b is an enlarged perspective view of the projection,

2A is an explanatory diagram of Embodiment 1 mounted on a large convection;

2B is a front view showing an example of a projection;

2C is a front view showing another example of the projection;

3 is an explanatory diagram according to a second embodiment;

4 is an explanatory diagram according to a third embodiment;

5 is an explanatory diagram according to a fourth embodiment;

6A is an explanatory diagram for mechanical analysis of the mounting of the rod of Example 1;

6B is an explanatory diagram of a mechanical analysis after mounting the rod of Example 1;

7A is an explanatory diagram of a mechanical analysis after mounting of a rod of Example 2;

7B is an explanatory diagram of a mechanical analysis regarding the mounting of the rod of Example 2;

8 is a perspective view of a fifth embodiment in which a hook used for a pole or the like according to the present invention is applied to a hanger;

9 is an enlarged side view of the same hook;

Figure 10a is a perspective view of the hook from the front,

10b is a perspective view of the hook from the rear;

Fig. 11 is an explanatory diagram showing a process of fitting a hook to a mating member such as a pole.

These and other objects are provided with a hook having a shape that extends from the bottom of the pole to the top, and turns upwards to face downward and almost surrounds the pole, and is provided inside the hook so as to be brought into contact with the outer peripheral surface of the pole. The hook is provided by at least three protrusions, the hook having a support portion parallel to the axial direction of the pole, which is in line contact with the outer circumferential surface of the pole.

The rod for hooking according to the present invention is a hook for hanging on a pole and stopping so as not to move. The pole current includes a rod having a circular cross-sectional shape equivalent to that of the rod other than the laundry pole. The hook has a hook portion that has a shape that almost extends from the bottom of the large convex to the upper side of the large convection which is turned upward and directed downward again. For example, the question part (?) Corresponds to the shape of a hook part. That is, in the point which has a shape which can be suspended on a large convection, you may think that also this invention has a structure equivalent to the conventional hook part.

The hook portion has at least three locations provided on the inner side of the hook portion and a projection so as to come into contact with the outer circumferential surface of the pole-flow. That is, since the rods are sandwiched by at least three protrusions, the protrusions are arranged to surround the outer circumferential surface of the poles. It is a preferable form to provide the parallel part with the hook part at the time of the mounting of a large flow convex, and to install four projection parts in opposing inside (FIG. 2, FIG. 3).

The projections shall be in linear contact with the outer circumferential surface of the pole, and the line shall extend in parallel with the axial direction of the pole. The part which is in line contact with the major convection of a projection is a support part. Examples of the line contactable support include a semi-cylindrical shape, a triangular prism shape, and the like shown in the embodiment.

The protruding portion is provided in the form of a ridge, that is, a ridge of a mountain, so as to be able to contact the surface of the mating member such as a pole over the required length. That is, the projecting shape of the projection is not a point, but a linear or dotted line, and a certain length of contact with the surface of the pole or the like is required, and the resistive force necessary for fixing is obtained by the contact of the certain length. It is preferable that the direction of the projection is aligned in the longitudinal direction of the mating member such as a pole. Even if the projection is provided in the circumferential direction of the mating member over the required length, there is no particular bad result, but the longitudinal direction is better. Therefore, basically, the protrusion should have a required length, and the direction and the like shall be freely determined.

In the case where the projections are provided so as to be in contact with each other in the longitudinal direction such as the pole, the protruding support portion can be formed wider or longer than the width of the main body of the hook. As a result, the entire hook is not large in size and poor in appearance, and the necessary fixing force can be obtained.

In the main body below the protruding portion, one side having a free end is opened outward and a guide portion for guiding a mating member such as a pole between the protruding portions can be formed between the other side of the main body. As a result, the mating member such as a pole can be fitted without difficulty between the strong protrusions.

The protruding portion may provide the main body with a side shape like a W shape and a nearly C shape as a whole. These side shapes give the hook part a sufficiently unique shape compared with the conventional simple question part (?), And the characteristic of a shape expresses the function of fixation in this invention.

On the other hand, the hook portion has a bypass portion falling from the pole convection in order to withstand loads (loads) repeatedly applied with attachment and detachment to counterpart members such as poles. The bypass part is greatly separated from the outer circumferential surface of the pole, causing structural clearance, and relieving stress concentration, contributing to the improvement of durability. The hook portion is a spring means for obtaining an urging force necessary for firm fixing to the mating member. Although only the hook portion is not a spring means, the entire hook is a spring means, but the structure of the hook portion is a major factor in the design of the spring means.

The hook portion is preferably configured to include an arc having a radius smaller than that of a circular arc having the radius of the hook at the center of the mating member such as a pole fixed by the projection portion. Thereby, favorable spring characteristic can be exhibited, keeping a hook part small. The hook used for the pole of the present invention and the like having such a configuration can have the same appearance as that formed by bending a strip as a whole.

Such a hook used for a pole according to the present invention can be manufactured as a molded article of plastic, whereby the size, color, shape and the like of the large and small changes are large. Moreover, it can manufacture similarly by the process of a metal plate material, In that case, durability improves more. Even in the composite structure of plastic and metal, it is possible to manufacture the same and to improve both performance and durability, but the manufacturing cost tends to be upward.

Detailed description of the invention

Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiments. 1 is an illustration of a hanger having a hook for use in a pole or the like according to the present invention, the hook portion 11 having an outline almost enclosing the rod 10 is rotated in the shaft portion 13 of the lower end to the hanger body 12 It is arrange | positioned possibly and has the downward rod insertion hole 14 in the lower end part of a parallel part.

The hook of the first embodiment has four protrusions 15 in total of two right and left positions inside the rigid hook portion 11, and each of the protrusions 15 has a semi-cylindrical shape. Therefore, since the support part 16 becomes parallel to the axial direction of the major convection near the outer end part of the projection part 15, this support part 16 is shown by the dashed-dotted line in FIG. 1B.

As shown by the broken line in FIG. 2A, the hook part 11 is formed in the shape previously narrowed inward so that the protrusion part 15 may be arrange | positioned at a space | interval narrower than the outer diameter of the pole 10 which wash | cleans in order to acquire elastic force. The protruding portion 15 can be arbitrarily set long and short as shown in Fig. 2C as well as the shortest in the axial length as shown in Fig. 2B. The longer the projection part 15 is lengthened, the larger the clamping force can be obtained.

Although the protrusions 15 of the first embodiment are all four sets having the same shape and the same size, it is possible to change the size of them, and the example is shown in FIG. 3 as the second embodiment. In Example 2, out of the four protrusions of Example 1, the protrusion of the lower side of the rod insertion side was changed into the large protrusion 15 ', and the other structure is the same as that of Example 1. As shown in FIG. Since the positions of the projections 15, 15, 15 ', and 15' are the same as those in the first embodiment, the concentration point of the action force of the projections 15, 15, 15, and 15 of the first embodiment is the axis of the large convection 10 ( In Example 2 with respect to C), the concentration point of the action force is slightly lower than the axis C. In Example 2, the width of the rod insertion opening 14 becomes narrower than Example 1 by the size of the protrusion part 15 '. However, since there is a projection 15 at the end of the parallel portion, attachment and detachment are easy.

The projections 15... Are not necessarily arranged in left-right symmetry, and are shown in FIG. 4 as a third embodiment having an asymmetrical arrangement. Example 3 is an example in which the same sized protrusions 15 are arranged inside the hook portion 11 at four equal intervals, and the rod insertion hole 14 "is the narrowest and close to the limit of elastic deformation. Therefore, it is preferable to use a material having elastic strength and flexibility in which the opening and closing stress is concentrated at the hook tip and does not lead to breakage.

Referring to Embodiment 4 consisting of a minimum of three protrusions 15, this example has two right and left positions of the rod insertion hole 14 and one innermost protrusion 15. As shown in FIG. Each of the protrusions 15 is arranged at intervals of 120 degrees, and is the hook portion 11 having a shape narrowed inwardly in the same manner as in the first embodiment. The mechanical analysis of these Examples 1 to 4 is as follows.

In the case of Example 1, when attaching and detaching the large convection 10, the state which the two protrusion parts 15 and 15 of the vertical line spread | extended most is shown in FIG. 6A. At this time, the bending moment at the vertex (O point) of the hook 11 is

M = l ₂ · P ₂ . (One)

to be. In addition, when the distance between the rod insertion-side projections is excessively widened from the no-load state is λ ₂ , the force (acting on the projections) P ₂ in the y direction is given by (2) from the formula of material mechanics.

P ₂ = 4E · I · λ ₂ / π · R ₃ . (2)

Wherein E: the hook material elastic constants, I: moment of inertia ^{(= πd 4/64 = π} × 8 4/64 = 4096π / 64 ≒ 200mm 4), λ 2: spread amount between the two protrusions, R: O It is the radius of curvature of the center line of the hook 11 centering on '.

Subsequently, at the time of mounting the pole shown in Fig. 6B, if the distance between each of the diagonal projections is d ', it is written as d (pole's outer diameter)>d', and thus the force of the force of P ₂ toward the center of the pole is shown. The component of is proportional to the value of d-d '.

The hook 11 in this case finds the force which fastens the major convection. In Fig. 6B, h ₀ : distance between b-b at the time of no load, h ₁ : distance after mounting of the pole and widening between b-b, and when the outer diameter of the pole is d = φ30mm, α = 30 on the y axis. The distance h ₀ between the inclined line and the stone period in which the y-y 'axis intersects b-b is d × sin 60' = 26 mm.

In this case, the bending moment acting on point O is

M = l ₁ P ₁ + l ₂ P ₂ . (3)

Wherein P ₁ = 4π · I (h ₁ −h ₀ ) / π · R ³ . (4)

P ₂ = ⁴ pi I (h ₂ -h ₀ ) / pi R ³ . (〃)

If the diameter and curvature of the hook are made constant in the equation (4), the forces P ₁ and P ₂ for tightening the rod depend on the values of (h ₁ -h ₀ ) and (h ₂ -h ₀ ), respectively.

When the hook part is attached to the large convection with respect to the thing of Example 2, it will become like FIG. 7 and the same analysis as with the case of Example 1 is established. The bending moment acting on the point O is

M = l ₁ P ₁ + l ₂ P ₂ . (5)

Wherein P ₁ = 4π · I · (h ₁ −h ₀ ) / π · R ³ . (6)

P ₂ = 4π · I · (h ₂ −h ₀ ) / π · R ³ . (〃)

Here too, if the diameter and curvature of the hook are constant in the formula (6), the forces P ₁ and P ₂ for fastening the major convection depend on (h ₁ -h ₀ ) and (h ₂ -h ' ₀ ), respectively. In addition, when removing the large convection, the outer diameter phi d of the large convection is such that the b-b is widened by a maximum (d-h ' ₀ ). At this time, the bending moment of point O becomes maximum, and the bending effect of X-X cross section of point O also becomes maximum. The maximum bending moment at the point O (M (max)) is

M (max) = l ₂ · P ₂ '... (7)

P ₂ 'in (7) is

P ₂ '= 4π · I (d−h' ₀ ) / π · R ³ . (8)

It becomes Next, the bending stress of the X-X cross section of O point is as follows.

M =? (9)

(9) In the _{formula, M = l 2 · P 2} ' In addition, σ: Bending Stress, Z: In the case of single-sided single-order moment (circular cross-section _{Z 0 = (π / 32)} d 3 = π / 32 × 30 3 = 2650 (mm ² ).)

Therefore, σ = M / Z = l ₂ · P ₂ '/ Z ₀ = l ₂ × 4π · I (d-h' ₀ ) / π · R ³ / Z ₀ . 10

10, expression in, (d-h 'other than ₀₎ is both, since the constant (d-h' ₀₎ is too large a value, there is the possibility to exceed the yield point strength σ is hook material.

Moreover, in putting on and taking off, the "distance to shift" of the surface of the pole and the projection part b becomes about 1/8 of the pole's circumference (L = (pi) * d). In the case of φd = 30mm, L = 94.2mm, and in 1/8, it becomes approximately 12mm. At this time, a work of multiplying the force of L by half the force of P ₂ -P ₁ is required. If this is W

W = 1/2 (P ₂ -P ₁ ), L... (11)

This work load is obviously larger than that of the four projections having the same radius, and thus requires extra force to attach and detach the pole. However, once attached, the laundry is hard to blow off by external force such as wind.

In the case of Fig. 4, the interval in the X-X direction of the b-b protrusion is only about the radius of the pole (geometrically the same), and when this is expanded to the diameter d of the pole, the bending stress of the apex of the hook is It becomes extremely large and the possibility of breaking by mounting becomes large.

The dynamic analysis in the case of the three protrusions of FIG. 5 is based on Example 1 and FIG. As shown in equation (3), in the case of Fig. 1, M = l ₁ · P + l ₂ · P _2, but in Fig. 5 only M = l ₁ · P ₂ . The power to do is a bit weak. To compensate for this, the radius of the b protrusion should be increased as shown in FIG.

8 shows the fifth embodiment of the present invention. The hook shown in FIG. 8 has a main body 22 with a hook portion 21. The main body 22 is provided with protrusions 23, 24, 25, and 26 on both front and rear sides so as to contact both front and rear sides of the mating member 20 such as a pole (see Figs. 9 and 10). The protrusions 23, 24, 25, and 26 each have two sets of four postwars. The protrusions 23, 24, 25, and 26 of the fifth embodiment have ridge-shaped support portions capable of linearly contacting the major convection.

The example main body 22 has a strip-shaped structure, and has projections 23, 24, 25, and 26 at positions facing each other on both front and rear sides of the hook portion 21. As shown in FIG. Since the projections 23 to 26 are formed by providing portions wider than the width of the main body 22 in the positions of the main body 22 having a strip-like structure, the front of the main body 21 having a short free end is provided. The projections 23 and 24 have approximately W-shaped side shapes, and the rear projections 25 and 26 have approximately C-shaped side shapes, and the C-shaped protrusions 25 and 26 have relative members such as poles. It is concave shape 27 so that it may not contact the main surface of 20. As shown in FIG. In addition, since the front projections 23 and 24 are W-shaped, this also becomes a valley and does not contact the mating member 20. This is because when the surface is in contact with the circumferential surface, the surface easily slips. In the embodiment, the protrusions 23, 24, 25, and 26 have a ridge shape in contact with the required length in the longitudinal direction of the mating member 20.

Moreover, the W-shaped and C-shaped side surfaces of the front and rear protrusions 23, 24, 25, and 26 increase the rigidity of the same portion, and enable firm fixing with the mating member 20 such as a pole. The pressing force for fixing is obtained by the spring means, and in the embodiment, the elasticity of the region including the projections 23, 24, 25, and 26 on both front and rear sides of the hook portion 21 constitutes the spring means. Doing. The hook portion 21 is an arc A1 having a radius R1 from the center O of the mating member 20 such as a pole fixed to the protrusions 23, 24, 25, 26 to the hook portion 21, and the like. A circular arc A2 having a smaller radius R2 is formed, and the circular arc A2 is mated with a large diameter arc A3 rather than dominating the upper and rear side shapes of the main body 22. The asymmetrical bypass portion 31, which is biased outward from the midpoint of the lower front and rear protrusions 23, 24, 25, and 26, is formed (FIG. 2). The bypass portion 31 constitutes a spring means together with the hook portion 21 and the protrusions 23, 24, 25, and 26 before and after.

Since the front end 28 which becomes the free end below the protrusion part in the main body 22 is opened in the outward direction (forward), and the other 29 of the main body 22 is a part which moved downward, The entrance is larger than the diameter of the mating member 20. The front end 28 serves as a guide for fitting the mating member 20 to the protrusions 23, 24, 25, and 26, and may be a hand hook for opening the hook when detaching. As another handhold corresponding to this hand 28, the projection part 32 is provided in the crank part 33 of the lower part of the main body 22. As shown in FIG. The vertical portion 34 extending downward from the crank portion 33 is a connection portion with the hanger H or the like, and the vertical axis passing through the vertical portion 34 is a large convection 20 fixed to the protrusions 23, 24, 25, and 26. It is set at a position near the vertical line passing through the center (O) of) or slightly outward (forward).

The approximately W-shaped protrusions 23 and 24, the approximately C-shaped protrusions 25 and 26, and the hook portion 21 in the forwardly shifted position impart remarkable characteristics to the hook body 22 in particular in the side shape. . Moreover, the main body 22 has the same external shape as the whole is formed by bending the strip, and the protrusions 23, 24, 25, and 26 are wide and match with each other to form a very impressive design. The hook shown in the Example which has such a shape and a structure is manufactured by plastic molding, and comprises the part independent of a hanger. However, it is clear that the present invention can be applied to a hook which is not independent of a hanger or the like and is integrally formed therewith.

In this way, when the hook of the present invention thus configured is hooked on the mating member 20 such as a pole, the hook is turned on the mating member 20 so as to hook the mating member 20 from the guide portion (Fig. 11). When the counter member 20 is manipulated to be pushed into the protrusions 23, 24, 25, and 26, the entire hook is extended back and forth, and the counter member 20 is dug between the front and rear support portions (Fig. 11). ). When pushed further, the mating member 20 is fitted to be accommodated between the two protrusions 23, 24, 25, and 26, and is stable (below FIG. 11).

Thus, the hook is fixed to the mating member 20 by the support (four-wire support) of four front and rear top and bottom, and is in a state in which it is hard to move in the circumferential direction or the longitudinal direction. Moreover, in the fixed state, the bypass part 31 of the apex of the hook part 21 is separated from the mating member 20 by considerable distance S, and also of the hook part 21 above the upper protrusion part 23, 25. Since the rigidity is high and the width is narrower than the diameter of the mating member 20, the mating member 30 such as a pole is reliably fixed and there is no fear of moving inward (upward) of the hook portion 21. With respect to the configuration between the two, the present invention is in the extension of the invention described in Figs. 1 to 7, the rigidity of the bypass portion 31 is high, and detachment to the counterpart 20 requires a certain strong force. do.

When removing, reverse the above operation. In this case, since the front end 28 of the hook 21 is opened outward, and the protrusion part 32 is provided in the lower part of a main body, it is easy to push and it is easy to operate. Thus, the hook of this invention is a structure which the stress at the time of attaching and detaching with the mating member 20 is disperse | distributed to the hook part 21, and it is difficult to concentrate, and durability is improved.

Since the present invention is constructed and acts as described above, since the projection is engaged in the line contact state with respect to the outer circumferential surface of the large convection, the clamping force of the hook acts very effectively and exhibits a strong fixing force. . In addition, four points of linear projections provided at two positions on both front and rear sides of the main body securely secure the mating member such as a pole, and are difficult to be damaged even if the rod is repeatedly attached to and removed from the pole, and the attachment and detachment are performed smoothly. Its remarkable effect is that its features express its function.

Claims (9)

A hook for hanging and hanging on a pole, comprising: a hook portion having a shape that extends upwards from below the pole, almost encircling the pole to turn upward, and downwards, and which is hooked into contact with the outer circumferential surface of the pole; A hook for use in a pole or the like, having at least three protrusions provided on the inside of the portion, and the protrusions have a support portion parallel to the axial direction of the pole-flowable line contactable on the outer circumferential surface of the pole. The protrusions are provided in two positions each at the left and right sides of the protrusions so as to sandwich the poles from the left and right, and a pair of protrusions are arranged at the left and right sides of the rod insertion hole for insertion of the poles into the hook portion. A hook for use in poles and the like, wherein the rod is extended and a pole is inserted. 3. A hook for use in a pole or the like according to claim 1 or 2, wherein at least three protrusions are different in size, and the size of the rod insertion hole into which the rod is inserted into the hook portion is narrowed or widened by the size of the protrusion. . A hook having a main body with a hook for hanging or hanging, which is fixed to a mating member such as a pole in relation to the hook portion, so as to be able to contact both front and rear sides of the mating member such as a pole. The projections are provided at each of two places, and the projections are provided in the form of ridges that are able to contact the surface of the mating members such as poles over the required lengths, and the hook portions withstand repeated loads accompanying detachment of the mating members such as poles. A hook for use in a pole or the like, wherein the hook has a bypass portion falling from a mating member such as a rod and a spring means for obtaining a pressing force necessary for fixing to the mating member. The hook for use in a pole or the like according to claim 4, wherein the projection is formed to have a width wider than that of the main body so that the protrusion can be contacted over the required length in the longitudinal direction of the mating member such as the pole. The main body under the projection part, wherein it has a free end and is opened outward, and comprises a guide part for fitting a mating member such as a pole between the projection parts between the other part of the main body. Hook to use for poles characterized by doing. 6. A projection according to claim 4 or 5, wherein the projections provided on both front and rear sides of the main body have a substantially W shape and a substantially C shape or a side shape similar thereto, and their side shapes characterize the outer shape of the main body. Hook to use for poles to say. 5. A hook for use in a pole and the like according to claim 4, wherein the hook portion comprises a circular arc having a radius smaller than that of a circular arc having a radius from a center of a mating member such as a pole held by a protrusion to a bent portion. . The hook according to any one of claims 4 to 8, wherein the hook has an outer shape such that the whole is formed by bending a strip.