JPH0215794Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to a sealed container lid.

BACKGROUND ART Conventionally, the sliding surface of the interlocking structure of a lid attached to the upper end of a sealed container via an interlocking structure that can be engaged and detached by relative rotation in the circumferential direction has had a flat surface without irregularities.

Problems to be Solved by the Invention According to the above-mentioned conventional structure, since the area in which the lid contacts the container is large, the coefficient of friction is large, and the sliding resistance due to the frictional force is also large.

The present invention solves the above-mentioned problems and aims to provide a sealed container lid that can reduce sliding resistance.

Means for Solving the Problems In order to solve the above problems, the present invention provides a lid for a sealed container that is attached via a meshing structure that can be engaged and detached by relative rotation in the circumferential direction. The surface is coated with a sliding material with an uneven surface.

Function In the above configuration, when the lid and the sealed container are relatively rotated in the circumferential direction when the lid is attached or detached to engage and disengage the engaging structure between the lid and the sealed container, the rotational sliding on the lid side of the engaging structure Since the sliding material coated with an uneven surface comes into contact with the sliding surface of the container via the convex surface, the friction coefficient is reduced due to the reduction of the contact area, and the material properties of the sliding material are improved. In combination with this effect, the frictional force is further reduced, and the sliding resistance between the relatively rotating sliding surfaces is reduced.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the drawings. As shown in FIGS. 2 and 3, the sealed container 1 has an openable and closable lid 2 on the top thereof. In other words, the lid 2 is fitted into the upper part of the sealed container 1, and when fitted, the lid 2 is sealed to the top of the sealed container 1.
This is ensured by the lid 2 coming into contact with the sealing material 3 attached to the upper end of the lid. Attachment of the lid 2 to the sealed container 1 is made possible by a container side interlocking structure provided between the two that can be engaged and detached by rotation in the circumferential direction. That is, on the inner periphery of the upper end of the sealed container 1, a plurality of container-side inner projecting pieces 5 are provided at predetermined angle intervals and protrude inwardly with a predetermined width in the circumferential direction, and on the upper outer periphery of the lid 2, A plurality of lid side outer protrusions 6 which can extend into the space between the container side inner protrusions 5 and have a predetermined width in the circumferential direction are protruded at predetermined angle intervals. These outer lid-side protrusions 6 are provided with lid-locking tongues 7 that can be inserted into the lower part of the inner container-side protrusions 5 at appropriate intervals in the circumferential direction. and container side inner protrusion piece 5
Both ends in the circumferential direction are formed as a first backing surface 5A and a first pulling back surface 5B, and both ends in the circumferential direction of the lid-side outer projection piece 6 are formed as a first backing surface 6A and a first pulling back surface 6B. A recess 8 is formed in the center of the upper surface of the lid 2, and a plurality of lid-side inner protrusions 9 are protruded from the inner periphery of the upper end of the recess 8 at predetermined angle intervals. Both ends in the circumferential direction of the lid-side inner protruding piece 9 are formed into a second push-back surface 9A and a second pull-back surface 9B. Disc 1 attached to the lower end of the lifting rod 10
1 can be inserted into the recess 8, and a plurality of disc-side projecting pieces 12 are provided at predetermined angular intervals on the outer periphery of the lower end thereof and protrude outward with a predetermined width in the circumferential direction. Both ends in the circumferential direction of these disc-side projecting pieces 12 are formed into a second pushed surface 12A and a second pulled back surface 12B. Furthermore, these disc side projecting pieces 12 include
A disk-side tongue piece 13 that can be inserted below the lid-side inner projection piece 9 is provided in the circumferential direction. The lid-side inner protruding piece 9, the disc-side protruding piece 12, and the disc-side tongue piece 13 constitute a disc-side meshing structure that can be engaged and disengaged by rotation in the circumferential direction.

FIG. 4 is a partially enlarged view of A in FIG. 2, and the upper surface of the lid locking tongue piece 7 that comes into contact with the lower surface of the container side inner protrusion piece 5 is finished in an uneven shape as shown in FIG.
A sliding material 15 of 30 to 100 microns made of, for example, tetrafluoroethylene resin is coated on its surface.

Hereinafter, the effects of the above configuration will be explained. The sealed container 1 is raised by a support stand (not shown), and the disc side protrusion piece 12 and the disc side tongue piece 13 are passed through the space between the lid side inner protrusion pieces 9, and the disc 11 is inserted into the recess of the lid 2. Position within 8. At this time, the container side meshing structure is in a meshing state in which the lid locking tongue piece 7 is inserted below the container side inner projecting piece 5.

Next, when the sealed container 1 is rotated by a predetermined angle in the direction of arrow B via the support base, the first pushed surface 5A of the inner projecting piece 5 on the container side changes to the first pushed surface 6A of the outer projecting piece 6 on the lid side.
When the lid 2 is engaged with and further rotated in the direction of arrow B, the lid 2 is rotated in the direction of arrow B, and the lid-side inner protruding piece 9 comes onto the disk-side tongue piece 13 and can be engaged with it. The second backing surface 9A of the inner lid-side protruding piece 9 engages with the second pushed-back surface 12A of the disc-side protruding piece 12, and the disc 1
Since container 1 is stationary, rotation of container 1 and lid 2 is stopped, resulting in the state shown in FIG. At this time, the container side inner protrusion piece 5 has come off from the lid locking tongue piece 7, so
By raising the lifting rod 10 and lifting the disc 11, the lid 2, which engages the disc-side tongue piece 13 via the lid-side inner projection 9, is removed from the container 1.

At this time, the lid locking tongue piece 7 rotates relatively while contacting the lower surface of the container side inner protrusion piece 5 via the sliding material 15 applied to the uneven surface formed on its upper surface, so the contact area is small. The coefficient of friction is reduced, the sliding resistance between the container-side inner projecting piece 5 and the lid locking tongue piece 7 is reduced, and the container rotates smoothly.

Furthermore, when using sliding material 15 and tetrafluoroethylene resin, the tetrafluoroethylene resin tends to adhere to metal if left in a crimped state at high temperatures (150 degrees or more). Since the tetrafluoroethylene resin is applied and formed on the uneven surface of the lid locking tongue piece 7, it does not come into full contact with the inner protrusion piece 5 on the container side and does not cause a large resistance.

Effects of the Invention As described above, according to the sealed container lid of the present invention, the sliding material applied to the sliding surface on the lid side comes into contact with the sliding surface on the container side through the convex part, so the contact area is The coefficient of friction is reduced due to the reduction in the friction coefficient, and together with the effect of the material properties of the sliding material, the frictional force is further reduced, and the sliding resistance between the relative rotating sliding surfaces is reduced, making smooth rotational movement possible. do.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention.
The figure is a cross-sectional view of main parts, Figure 2 is a longitudinal cross-sectional view of the whole, Figure 3 is a cross-sectional view showing the operating state, and Figure 4 is A of Figure 2.
FIG. DESCRIPTION OF SYMBOLS 1... Sealed container, 2... Lid, 5... Container side inner projecting piece, 6... Lid side outer projecting piece, 7... Lid side locking tongue piece, 9
... Lid side inner protrusion piece, 10 ... Lifting rod, 11 ...
Disc, 12... disc side protruding piece, 13... disc side tongue piece.

Claims (1)

[Scope of utility model registration request] A lid for a sealed container that is attached via an interlocking structure that can be engaged and detached by relative rotation in the circumferential direction, characterized in that a sliding material is applied to the sliding surface of the interlocking structure so as to have an uneven surface. Sealed container lid.