JPH0430942Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a hanger with an improved structure for attaching a hanging hook to the hanger body.

[Conventional technology]

Conventionally, in various types of plastic hangers constructed by attaching a hanging hook 2 to a hanger body 1 as shown in FIG. 8, as shown in FIG. On the one hand, a vertical hole 11 is provided, and on the other hand, a mounting shaft 3 is provided on the side of the hanging hook 2, which has a check protrusion 31 at the lower end and is vertically divided into two to provide elasticity. 11 and locks the non-return protrusion 31 to the lower side of the vertical hole intermediate portion 11a.
A hanging hook 2 is attached to a hanger body 1 so as to be rotatable around the axis of a mounting shaft 3.

[The problem that the idea attempts to solve]

However, according to this conventional hook mounting structure, the mounting shaft 3 inevitably becomes thick because it is necessary to divide the mounting shaft 3 into two to provide elasticity. Therefore, the entire hanging hook attachment part becomes thicker,
Accordingly, the hanging hook 2 has to be made larger in diameter than necessary, which is a constraint on the design of the hanger, and it is also not aesthetically pleasing.

Further, as a result of providing elasticity to the mounting shaft 3, although the mounting shaft 3 can be easily fitted into the vertical hole 11, the mounting shaft 3 is more likely to come off and the hanging hook 2 is more likely to come off from the main body 1 during use.

SUMMARY OF THE INVENTION Therefore, the present invention provides a hanger in which the hanging hook attachment part can be made thinner and a stable hanging hook attachment state can be obtained without fear of the attachment part coming off once attached.

[Means to solve the problem]

The present invention provides a hanger configured by attaching a hanging hook to the hanger body, and the hanger body has a small oval hole and a large hole whose diameter is larger than the long axis diameter of the small hole. A stepped hole is formed that continues vertically through the step, and the hanging hook is provided with a mounting shaft having a check protrusion at its lower end, and the check protrusion has a small diameter in the stepped hole. The check protrusion is formed into a concave shape that descends from the base of a circular shape with a diameter larger than the short axis diameter of the hole and almost the same as the long axis diameter, and this check protrusion allows the small diameter hole of the stepped hole to be closed. The mounting shaft is inserted into the stepped hole while passing through the large diameter hole, and the hanging hook is rotatably attached to the hanger main body.

Further, the present invention is based on the above configuration, and at least the upper end of the small diameter hole in the stepped hole is formed to expand upward, and the circular root portion of the check protrusion has the minor axis diameter of the smallest diameter portion of the small diameter hole. The diameter is larger than the diameter of the major axis and is approximately equal to the diameter of the major axis.

In this case, it is desirable to form the outer circumferential surface of the portion of the mounting shaft excluding the non-return protrusion into a shape corresponding to the small diameter hole of the stepped hole.

[Effect]

In this way, the non-return protrusion of the mounting shaft is press-fitted and penetrated into the oval small diameter hole with the short shaft side expanded, so the mounting shaft It doesn't need to be thin. Therefore, the entire hanging hook attachment portion can be made thinner.

Furthermore, since the check projection of the mounting shaft does not itself have the same elasticity as conventional check projections, once it is installed, it reliably performs its original retaining function. Therefore, it is possible to obtain a stable mounting state in which there is no fear that the mounting shaft will come off from the hanger body during use.

Moreover, when the check protrusion is press-fitted, only the short axis side of the oval small-diameter hole expands and the small-diameter hole is deformed into a perfect circle, so the mounting shaft can be inserted smoothly with relatively little force. .

Further, by forming at least the upper end of the small diameter hole to expand upward, the check projection can be smoothly received in the small diameter hole due to the so-called centering effect of the tapered hole. Therefore, when the check projection is press-fitted, there is no fear that excessive stress will be applied to the circumferential surface of the small-diameter hole and cracks will occur, and the operation of press-fitting the projection can be performed even more smoothly.

In this case, by forming the outer circumferential surface of the part of the mounting shaft other than the check protrusion into a shape that corresponds to the small diameter hole, the outer circumferential surface of the mounting shaft will come into close contact with the circumferential surface of the small diameter hole, causing wobbling in the mounting part. Therefore, a more stable mounting condition can be obtained.

〔Example〕

An embodiment of the present invention will be explained with reference to FIGS. 1 to 6.

First Embodiment (See Figures 1 to 3) Reference numeral 4 represents a hanger body, and 5 represents a hanging hook, both of which are made of plastic.

The hanger main body 4 is provided with a stepped hole 6 in which an oval small diameter hole 61 and a perfectly circular large diameter hole 62 are vertically connected via a stepped portion 63 in a portion where the hanging hook 5 is attached. .

On the other hand, the hanging hook 5 is integrally connected with a mounting shaft 7 having a hemispherical non-return protrusion 71 at its lower end.

Here, the short axis diameter R ₁ of the small diameter hole 61 in the stepped hole 6, the diameter R ₂ of the same long axis, the diameter R ₃ of the large diameter hole 62, and the diameter of the root portion 71a of the check protrusion 71. The relationship with dimension _R4 is set as follows.

R ₁ < R ₂ = R ₄ < R ₃ (For example, R ₁ = 6 mm, R ₂ , R ₄ = 7 mm, R ₃ = 7.5
mm) The diameter of a portion 72 of the mounting shaft 7 excluding the non-return protrusion 71 (hereinafter referred to as the main portion) is set to be equal to the minor axis diameter R ₁ of the small diameter hole 61. In addition, as shown in Fig. 3, the mounting shaft 7
The length l ₁ of the main portion 72 is equal to the length l ₂ of the small diameter hole 61 in the stepped hole 6, and the length l ₃ of the check protrusion 71.
is set to be slightly shorter than the length _l4 of the large diameter hole 62.

In this configuration, when the mounting shaft 7 is pushed into the stepped hole 6, the check protrusion 71 is inserted into the small diameter hole 61 of the stepped hole 6.
It passes through the large diameter hole 62 while being expanded, and reaches the inside of the large diameter hole 62, where the root portion 71a thereof is engaged with the stepped portion 63 from below. As a result, the mounting shaft 7
is fitted and held in the stepped hole 6, and the hanging hook 5 is attached to the hanger body 4 so as to be freely rotatable around the axis of the attachment shaft 7.

During this installation, the short axis of the small diameter hole 61 expands due to the pushing force of the check protrusion 71, and the entire shape changes from an ellipse to a perfect circle, allowing the check protrusion 71 to pass through. It returns to its original shape due to its elasticity.

In this way, since the non-return protrusion 71 of the mounting shaft 7 is press-fitted and penetrated into the oval small diameter hole 61 so that its short axis side expands, the mounting shaft is divided into two and its elastic deformation is utilized. The mounting shaft 7 can be thinner than the conventional structure in which the mounting shaft 7 is passed through a small diameter hole. Therefore, the entire hanging hook attachment portion can be made thinner.

In addition, since the non-return protrusion 71 of the mounting shaft 7 itself does not have elasticity like a conventional non-return protrusion, once it is installed, even if an external force is applied in the removal direction, the stepped hole 6 It is secured in a state in which it is locked to the stepped portion 63, and reliably performs its original retaining function.

Moreover, since only the short axis side of the small diameter hole 61 expands and deforms from an elliptical shape to a perfect circle, when the mounting shaft is inserted, compared to, for example, expanding the entire circumference of a small diameter hole that is originally a perfect circle, No excessive stress is applied, and the mounting operation can be performed smoothly with relatively little force.

Second and third embodiments (see Figures 4 to 6) To explain only the differences from the first embodiment, the fourth embodiment
In the second embodiment shown in the figure, the upper end 61a of the small diameter hole 61 is formed, and in the third embodiment shown in FIGS. 5 and 6, the entire small diameter hole 61 is formed in a tapered shape that widens upward.

On the other hand, the main part 72 of the mounting shaft 7 has a shape corresponding to the small diameter hole 61, that is, in the case of the second embodiment, only the upper end outer circumferential surface 72a has a tapered shape that widens upward corresponding to the upper end 61a of the small diameter hole 61. In the case of the third embodiment, the entire outer peripheral surface is formed into a tapered shape that widens upward corresponding to the small diameter hole 61.

According to this configuration, the so-called centering effect of the tapered shape and the non-return protrusion 71 allows the mounting shaft 7
are guided with respect to the small diameter hole 61 in a direction in which their axes coincide with each other, and the check projection 71 is smoothly received in the small diameter hole 61. Therefore, when the check protrusion is press-fitted, there is no risk that excessive stress will be applied to the circumferential surface of the small diameter hole 61 and cracks will occur, and the check protrusion 7
The press-fitting operation in step 1 can be performed even more smoothly.

Furthermore, since the outer circumferential surface of the main portion 72 of the mounting shaft 7 is formed in a partially tapered or entirely tapered shape corresponding to the small diameter hole 61, the main portion 72 touches the circumferential surface of the small diameter hole 61 at this tapered portion. Since it is in close contact with the other hand, it is difficult for the mounting part to wobble. In particular, in the case of the third embodiment, the entire main portion is in close contact with the circumferential surface of the hole, resulting in a high effect of preventing rattling.
A more stable mounting state can be obtained.

In addition, in both the second and third embodiments,
The diameter R ₄ of the base portion 71a of the check projection 71 is
The minimum diameter portion of the small diameter hole 61, that is, the portion below the tapered upper end 61a in the case of the second embodiment, and the short axis diameter R ₁ of the lower end of the small diameter hole in the third embodiment. It is formed to have a diameter that is approximately the same as the major axis diameter.

Other Embodiments () The non-return protrusion 71 of the mounting shaft 7 may have a conical shape or a truncated conical shape instead of the hemispherical shape shown in each of the above embodiments. etc. may be formed.

() In each of the above embodiments, this protrusion base portion 7
The diameter dimension R ₄ of 1a is the small diameter hole 61 of the stepped hole 6.
The short axis diameter dimension R ₁ is larger than the major axis diameter dimension R ₂
(R ₁ < R ₄ = R ₂ ), but R ₁ < R ₄
It may be <R ₂ .

() The small diameter hole 61 is not limited to a pure ellipse, which is one of the quadratic curves shown in the above embodiment, but may be formed into an ellipse including a straight line parallel to the long axis, which is one of the ellipses in a broad sense. You may.

[Effect of idea]

As described above, according to the present invention, a stepped hole consisting of an oval small diameter hole and a large diameter hole having a diameter larger than the long axis diameter of the small diameter hole is provided on the hanger main body side, and the hanging hook is Since the non-return protrusion of the mounting shaft provided on the side is press-fitted into the small diameter hole of this stepped hole so that its short shaft side expands, the structure is such that the mounting shaft is split in half and its elastic deformation is utilized. The mounting shaft can be made thinner than the conventional structure in which the shaft passes through the small diameter hole.

Therefore, since the entire hanging hook attachment part can be made thinner, the inconvenience of having to make the diameter of the hanging hook larger than necessary to match the hanging hook attachment part unlike in the past does not occur. , it becomes aesthetically pleasing.

Furthermore, since the check projection of the mounting shaft does not itself have the same elasticity as conventional check projections, once it is installed, it reliably performs its original retaining function. Therefore, it is possible to obtain a stable mounting state in which there is no fear that the mounting shaft will come off from the hanger body during use.

Furthermore, when the check protrusion is press-fitted, only the short axis side of the oval small-diameter hole expands and the small-diameter hole deforms into a perfect circle, allowing the installation shaft to be inserted smoothly with relatively little force. .

Further, by forming at least the upper end of the small diameter hole to expand upward, the check projection can be smoothly received in the small diameter hole due to the so-called centering effect of the tapered hole. Therefore, when the check projection is press-fitted, there is no fear that excessive stress will be applied to the circumferential surface of the small-diameter hole and cracks will occur, and the operation of press-fitting the projection can be performed even more smoothly.

In this case, by forming the outer circumferential surface of the part of the mounting shaft other than the check protrusion into a shape that corresponds to the small diameter hole, the outer circumferential surface of the mounting shaft will come into close contact with the circumferential surface of the small diameter hole, causing wobbling in the mounting part. Therefore, a more stable mounting condition can be obtained.

[Brief explanation of drawings]

Fig. 1 is a partial sectional view of the hanger main body and hanging hook of the hanger according to the embodiment of the present invention, Fig. 2 is an enlarged plan view taken along the lines of Fig. 1, and Fig. 3 shows a state in which the hanging hook is attached to the hanger main body. FIG. 4 is an enlarged sectional view showing the second embodiment of the present invention, FIG. 5 is a view equivalent to FIG. 1 showing the third embodiment of the present invention,
Figure 6 is an enlarged sectional view of the hanging hook attached, Figure 7 is a view equivalent to Figure 3 showing a conventional hanger, and Figure 8
The figure is a front view showing an example of a hanger to which the present invention is applied. 4... Hanger body, 5... Hanging hook, 6...
...Stepped hole, 61...Stepped hole oval small diameter hole,
R ₁ ... Short axis diameter of small diameter hole, R ₂ ... Same long axis diameter, 62 ... Same large diameter hole, R ₃ ... Large diameter hole, 6
3...Stepped portion, 7...Mounting shaft, 71...Check protrusion,
71a... Root portion of the non-return protrusion, R ₄ ... Diameter dimension of the same root portion, 61a... Upper end formed to widen upward in the small diameter hole, 72... Part of the mounting shaft excluding the non-return protrusion, 72a ...An outer circumferential surface formed to expand upward in the same part.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A hanger consisting of a hanging hook attached to a hanger body, the hanger body having an oval small diameter hole and a diameter larger than the long axis diameter of the small diameter hole. A stepped hole is formed in which the large diameter hole and the large diameter hole are vertically continuous through the stepped part, and the hanging hook is provided with a mounting shaft having a non-return protrusion at the lower end, and the non-return protrusion The stepped hole is formed in a shape that is a concavity descending from the root of a circle with a diameter larger than the short axis diameter of the small diameter hole and almost the same as the long axis diameter, and this check protrusion is formed in the stepped hole. A hanger characterized in that the mounting shaft is inserted into the stepped hole while penetrating the small diameter hole and positioned in the large diameter hole, and the hanging hook is rotatably attached to the hanger body. 2. At least the upper end of the small diameter hole in the stepped hole is formed to expand upward, and the circular root portion of the check protrusion is larger than the short axis diameter of the smallest diameter portion of the small diameter hole and approximately equal to the long axis diameter. 2. The hanger according to claim 1, wherein the hanger is formed to have a diameter size of . 3. The hanger according to claim 2, wherein the outer circumferential surface of a portion of the mounting shaft excluding the non-return protrusion is formed in a shape corresponding to the small diameter hole of the stepped hole.