JPH0445657Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a lid knob mounting structure that matches the orientation of the directional knob when the directional knob is attached to the directional lid. It is related to.

[Conventional technology]

The plan view in FIG. 8 and the front view in FIG. 9 show the directional knob 2 attached to the directional lid 1.

The lid 1 is a rectangular lid used for, for example, a hot plate, and when the knob 2 attached to the lid 1 is provided with a knob surface 2a, the lid is It is desirable to align the longitudinal direction of the handle 1 and the gripping surface 2a in the same direction.

[The problem that the idea aims to solve]

The easiest way to attach the knob 2 to the lid 1 is to provide a male thread on one of the lid 1 and the knob, and a female thread on the other, and then screw the knob 2 onto the lid 1. A problem arises when there is directionality.

In other words, when the knob 2 is screwed in and tightened until it comes into pressure contact with the lid 1, the direction of the knob 2 does not match that of the lid 1, so an excessive retightening force is applied to the knob 2, and the two are tightened. Attempting to match the directionality may cause problems such as excessive tightening force being applied to the knobs, resulting in damage.

Therefore, a method has been adopted such as aligning the direction of the knob 2 with the direction of the lid 1 and then screwing the knob 2 from the back of the lid 1. However, tools are required to attach and remove the knob 2, and the It was inconvenient to remove knob 2 and wash it.

The present invention was developed to solve this problem, and allows the knob to be attached and removed extremely easily without using any tools. Moreover, the direction of the knob attached to the lid correctly matches the direction of the lid. The present invention provides a knob mounting structure that can be used.

[Means to solve the problem]

In order to achieve the above object, in the knob mounting structure of the present invention, a screw and a protrusion are provided on the lid mounting surface of the knob, and a screw that engages with the screw of the knob and a rotation of the protrusion are provided on the lid mounting surface. Two annular protrusions sandwiching the movement trajectory are provided, and the annular protrusions are omitted to form a protrusion locking part at a position where the protrusions face each other on the lid when the directions of the knob and the lid are aligned. .

Moreover, instead of providing the annular protrusion and the protrusion locking part, when the directionality of the knob and the lid are aligned, the protrusion is located at the opposite position on the lid,
A ring-shaped projection may be provided, and a projection-locking recess may be formed inside the ring-shaped projection.

[Effect]

With the knob mounting structure configured as described above, when the screw of the knob is screwed into the screw of the lid, the protrusion rotates around the screw of the knob, the tip of the protrusion gradually approaches the annular protrusion, and finally the annular Contact with the protrusion.

When the knob is still screwed in, the lid undergoes elastic strain and the resistance to screwing in the knob increases, but when the projection of the knob reaches the protrusion locking part where the annular projection is missing, the resistance to screwing in the knob decreases.

Therefore, when the protrusion engages the protrusion locking part,
The knob is stably locked.

When the knob is screwed in with an appropriate screwing force and the protrusion of the knob engages with the protrusion locking part, the orientations of the knob and the lid match correctly.

The same applies when the lid is provided with a projection locking recess instead of the projection locking portion, and when the knob's projection engages the projection locking recess, the direction of the knob is stable and matches the direction of the lid. .

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a vertical cross-sectional view of a lid 1 having a rectangular shape, and a bolt 4 is inserted into a square hole 3 provided in the center of the lid
A corner portion 4c provided between the threaded portion 4a and the head portion 4b is fitted into the corner portion 4c.

This is to prevent the bolt 4 from rotating idly with respect to the lid 1, and the bolt 4 may be directly fixed to the lid 1 by welding or the like.

In the center of the knob 2, as shown in FIG. 4, which is a longitudinal sectional view of FIG. 3 and a XX sectional view of FIG.
A female thread 5 is provided that opens on the lid mounting surface 2b side.

The female thread 5 is screwed into the bolt 4,
The knob 2 side may have a male thread and the lid 1 side may have a female thread.

With respect to the axis of the female screw 5, a protrusion 6 is provided at a symmetrical position with respect to the female screw 5 in a plane parallel to the grip surface 2a.
6 is provided.

Although the number of protrusions 6 is two in this embodiment, it may be one.

Two annular protrusions 8, 8 are provided on the cover 1 to sandwich the circle 7 of the rotation locus of the protrusion 6 that is created when the female screw 5 of the knob 2 is screwed into the bolt 4 of the cover 1 (see Fig. 1 and (See Figure 2).

The width of the annular groove 9 formed between the two annular protrusions 8, 8 is narrower than the width of the tip of the protrusion 6.
When it approaches the lid 1, the tip of the protrusion 6 comes into contact with the annular protrusions 8, 8 (see Fig. 5).

Further, the annular protrusions 8, 8 are missing at a point where the axis of the bolt 4 intersects the longitudinal line of the lid 1, and this missing part is a protrusion locking part 10 into which the tip of the protrusion 6 engages. (See Figure 2).

Mounting of a knob using the knob mounting structure configured as above will be explained.

When the female screw 5 is screwed into the bolt 4 and the knob 2 is screwed in, the protrusion 6 comes into contact with the annular protrusions 8, 8, as shown in FIG. As a result, the screwing resistance of the knob 2 increases.

When the tip of the protrusion 6 overlaps the protrusion locking part 10, the protrusion 6 is fitted into the protrusion locking part 10, and the elastic distortion of the lid 1 is released.

In this state, the knob 2 is locked to the lid 1, and the direction of the grip surface 2a of the knob 2 coincides with the longitudinal direction of the lid 1.

6 and 7 are plan views of main parts showing the second embodiment. Instead of providing the annular projections 8, 8 on the lid 1, an annular projection 8 is provided in the longitudinal direction of the lid 1 passing through the axis of the bolt 4.
1 is provided.

A projection locking recess 12 is formed inside the annular projection 11, and the projection locking recess 12 is located at a position facing the projection 6.

Other aspects are the same as in the first embodiment.

In this case as well, when the knob 2 is screwed into the bolt 4 of the lid 1, the screwing torque increases when the protrusion 6 gets over the annular protrusion 11, and when the protrusion 6 overlaps with the protrusion locking recess 12, the protrusion 6 is engaged in the protrusion locking recess 12, the knob 2 is locked, and the grip surface 2a of the knob 2 coincides with the longitudinal direction of the lid 1.

In addition, as shown in FIG. 7, the protrusion locking recess 12
When the height of the projection locking recess 12 is made higher than the top surface of the lid 1 by the dimension h, the pressing force of the projection locking recess 12 of the projection 6 engaged in the projection locking recess 12 increases, and the projection locking recess 12
It has been confirmed from the results of experiments that large elastic deformation occurs in the annular projection 11 and the locking force of the projection 6 increases.

In both the first and second embodiments, the knob 2 can be easily removed by applying a certain amount of torque to the knob 2 and turning it in the direction of loosening the screw.

[Effects of this invention]

Since the present invention is configured as described above, it produces the effects described below.

(1) Since the knob can be attached and removed simply by rotating the knob, assembly of the lid has become easier.

(2) For the same reason, and because no tools are required, it is convenient to remove the knob and wash at home.

(3) Since the direction of the knob attached to the lid correctly matches the direction of the lid, the aesthetic appearance of the lid is not lost and good operability of the lid is maintained.

[Brief explanation of the drawing]

1 to 7 show embodiments of the present invention.
The figure is a vertical cross-sectional view of the lid, Figure 2 is a plan view of the main part of the lid, Figure 3 is a vertical cross-sectional view of the knob, and Figure 4 is the X--
5 is a longitudinal sectional view of the main part for explaining the state of the knob attachment, FIG. 6 is a plan view of the main part of the lid in the second embodiment, and FIG. 7 is a diagram for explaining the knob attachment in the second embodiment. 8 is a plan view of the lid with a knob, and FIG. 9 is a front view of the same. 1...Lid, 2...Knob, 2a...Knob surface,
4...Bolt, 5...Female thread, 6...Protrusion, 8...
...Annular projection, 10...Protrusion locking portion, 11...Annular projection, 12...Protrusion locking recess.

Claims (1)

[Scope of claim for utility model registration] (1) Screws and protrusions are provided on the lid mounting surface of the knob,
The knob mounting surface of the lid is provided with a screw that engages with the screw of the knob and two annular protrusions that sandwich the rotation locus of the protrusion. A lid knob attachment structure characterized in that a protrusion locking portion is formed by omitting the annular protrusion at a position opposite to the protrusion. (2) Provide screws and protrusions on the lid mounting surface of the knob,
A screw is provided on the knob mounting surface of the lid to be engaged with the screw of the knob, and when the directionality of the knob and the lid match, a periphery of the tip of the projection is provided at a position facing the projection on the lid. 1. A lid knob mounting structure characterized in that a ring-shaped projection surrounding the ring-shaped projection is provided, and a projection-locking recess is formed inside the ring-shaped projection.