JPH0240465Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a mounting structure for a rotary lid used as an inspection lid of a controller, etc.

(Prior Art) Conventionally, as a mounting structure for a rotary lid, a structure using a hinge portion as shown in FIGS. 10 to 12 is known. In Figures 10 to 12,
1 is a rotating lid, 2 is a frame, and these are connected by a thin hinge part 3. The frame 2 is provided with a panel insertion groove 4 for receiving and fixing a panel or the like. Figures 11 and 12
The figure shows the rotating state of the rotary lid 1, and the hinge part 3 is a thin member that can be bent.
Therefore, the rotary lid 1 rotates as shown by the arrow in FIG. 12, and can be opened and closed by rotating the rotary lid 1. Note that FIG. 10 shows an open state.

(Problems to be solved by the invention) In the conventional rotary lid mounting structure as described above, the hinge part may be damaged if the rotary lid is opened and closed frequently. There were problems such as restrictions.

The purpose of the present invention is to solve the above-mentioned problems of the prior art, and therefore, to provide a mounting structure for a rotary lid that can be opened and closed suitably without damage to the mounting part and without being limited by the materials used. It is to be.

(Means for Solving the Problems) The present invention is characterized by providing a bearing protrusion 21 near both sides of the upper part of the frame 20, and a space 11 for receiving the protrusion on the edge of the rotary lid 10 which is pivoted. A semi-cylindrical groove 22 is provided on both sides of each protrusion, a curved recess 23 is provided at the outer end of the groove, and a hemisphere is provided on both sides of each space to engage with the corresponding recess. The lid is provided with a protrusion 12 having the shape of a shape, and a protrusion 13 that protrudes outward is provided on the pivot edge of the lid.

(Operation of means for solving the problem) In this rotary lid mounting structure, the hemispherical protrusion 12 of the rotary lid is engaged with the recess 23 at the end of the groove 22 of the bearing projection 21 on the upper part of the frame. Since the protrusion 13 on the pivoting edge of the lid comes into contact with the panel when the lid is opened, the hemispherical protrusion 12 is always engaged with the recess 23, and the rotating lid can be opened and closed smoothly. Let's do it. Therefore, even if it is opened and closed frequently, it will not be damaged.

(Example) Next, an example of the present invention will be described with reference to the drawings. 1 to 7 show an example of a rotary lid mounting structure according to the present invention, in which the rotary lid 10 is formed as a separate member from the frame 20,
It is pivotally fixed to the upper part of the frame 20. B is a pivot part.
Typically, these frames and rotating lids are made of plastic material. Note that, as shown in FIGS. 2 and 3, this mounting structure is also provided with a panel insertion groove 30 for fixing the frame 20 to the panel 5.

As shown in FIGS. 6 and 7, in this mounting structure, bearing protrusions 21 that serve as bearings are provided on both sides of the upper part of the frame 20, that is, near both ends.
Moreover, each protrusion 21 is provided on the edge of the rotary lid 10 that is pivoted.
A space 11 is formed to receive the. The space portion 11 and the protruding portion 21 constitute a pivot portion B.

As shown in FIGS. 1 and 4, the protrusion 21
A semi-cylindrical groove 22 is formed on both sides of the groove 2.
A concave portion 23 having a curved surface is formed at the outer end of the concave portion 2 . Hemispherical protrusions 12 are provided on both opposing sides of the space 11 of the rotary lid 10, and each protrusion 12 is adapted to engage with the corresponding groove 22 and recess 23, so that the attached In this state, the protrusion 12 engages in the recess 23.
Note that the recess 23 abuts against the protrusion 12 and the protrusion 1
2 from the groove 22, at the end of the groove 22, as seen in FIG.
The groove 22 is formed in a slightly protruding portion so as to close the groove 22 . Preferably, the curved surface of the recess 23 is a 1/4 spherical surface corresponding to the spherical surface of the protrusion 12.

Furthermore, in this mounting structure, as shown in FIGS. 2 and 3, the edge of the rotary lid 10 that is pivoted to the frame 20 has a protrusion 1 that protrudes outward in the closed state.
3 is provided. As shown in FIG. 3, when the lid 10 is rotated and opened, the projection 13 comes into contact with the panel 5, and this contact causes the pivoting edge of the lid to move as shown by arrow G in FIG. Push the hemispherical protrusion 12 outward.
is adapted to always engage with the recess 23 of the bearing protrusion.

Therefore, it is preferable that the protrusion dimension D2 of the protrusion 13 be slightly larger than the value obtained by subtracting the thickness dimension t of the panel from the width dimension D1 of the panel insertion groove 30. The pivot edge of the lid has an arcuate cross section, and projections 12 are provided at appropriate positions.

In the above embodiment, the protrusion 13 protrudes at an acute angle, but if desired, the protrusion 13 may have an obtuse angle as shown in FIG. 8, or a protrusion having an arcuate cross section as shown in FIG. It can also be a department.

When attaching this rotary lid 10 to the frame 20, it is only necessary to insert each protrusion 12 into the groove 22 of the bearing protrusion 21, as shown by the imaginary line 14 in FIG. 23 and the protrusion 12, the lid 10 can be rotated using that portion as a fulcrum as shown by arrow E in FIG. FIG. 6 shows the closed state, and FIG. 7 shows a perspective view of the closed state seen from the back side. F in FIG. 3 indicates the opening direction.

Note that the lid 10 is prevented from coming off by the panel 5 inserted into the gap 30 of the frame 20, and the dimension D1 of the insertion groove is usually larger than the thickness t of the panel. In this structure, when the rotating lid 10 is opened, the protrusion 13 comes into contact with the panel 5 and pushes the pivoting edge of the lid outward to prevent the axis from shifting.

(Effect of the invention) Therefore, according to the invention, the hemispherical protrusion of the rotary lid is inserted into the recess at the end of the groove of the bearing protrusion on the frame side to constitute the pivot part, and the axis is aligned. Since it does not shift, it rotates smoothly, so it will not be damaged even if it is opened and closed frequently, and there are no restrictions on the materials used. Furthermore, since misalignment of the axis is prevented, damage to the bearing protrusion and the protrusion serving as the axis does not occur.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the main parts of the rotary lid mounting structure according to the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 6, Fig. 3 is a sectional view showing the open state, and Fig. 4. is a sectional view taken along the line C-C in Fig. 1, Fig. 5 is a perspective view of a part of this mounting structure, Fig. 6 is a perspective view of the entire rotary lid according to the present invention seen from the front, and Fig. 7 is a perspective view of it. 8 is a sectional view showing another embodiment, FIG. 9 is a sectional view showing still another embodiment, FIG. 10 is a perspective view showing a conventional example, and FIG. 11 is a sectional view showing another embodiment. 10th
A sectional view taken along the line HH in the figure, and FIG. 12 are sectional views showing a state in the middle of rotation of a conventional example. In the figure, 10: rotary lid, 11: space, 12: protrusion, 13: protrusion of pivot part, 20: frame, 21: bearing protrusion, 22: semi-cylindrical groove, 23: recess.

Claims (1)

[Claims for Utility Model Registration] (1) In a mounting structure for a rotating lid that is pivotally fixed to a frame that is attached to a panel, bearing protrusions are provided on both sides of the upper part of the frame, and A space is formed in the edge to receive the protrusion, and a semi-cylindrical groove is provided on both sides of each of the protrusions, and a concave portion with a curved surface is provided at the outer end of the groove. Hemispherical protrusions are provided on both sides of each of the space parts to engage with the recesses and become the center of rotation of the rotary lid, and when opened, abut against the panel and engage the hemispherical protrusions and the rotary lid. A mounting structure for a rotary lid, characterized in that a pivot edge of the lid is provided with an outwardly projecting protrusion to maintain engagement of the recess. (2) The protruding dimension of the protruding portion of the pivoting edge of the lid is slightly larger than the difference between the insertion groove of the panel of the frame and the thickness of the panel.Claim 1 of Utility Model Registration
Mounting structure of rotating lid as described in section.