JPS5914024Y2 - Metal lid fitting device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a metal lid fitting device for fitting and fixing a metal lid having a peripheral wall to a container mouth of a top plate portion.

In a container having a relatively large-diameter mouth on the top plate, a curled portion 3 is formed at the periphery of the mouth 2 of the top plate 1, as shown in a partial vertical side view in FIG. A metal lid 6 having a circumferential wall 5 provided with a folded portion 4 that engages with the curled portion 3 is fitted into the opening 2, and the circumferential wall 5 is changed from the solid line in the figure to the imaginary line. Expand the diameter of the lower part and attach the metal lid 6
to be fixed.

Generally, a plurality of fan-shaped members 7 are used to expand the diameter of the peripheral wall portion 5.
, 7 are arranged horizontally and radially as shown in a partially cutaway plan view in FIG. 2.

In this device, an annular coil spring 8 is applied to the fan-shaped member 7 to give it elastic gathering behavior toward the center of the device, and the fan-shaped member 7 is made to face the lower inner circumferential surface of the peripheral wall 5 of the metal lid 6. It is equipped with a mechanism for moving forward in a horizontal and radial direction simultaneously.

In this type of conventional metal lid fitting device, when the group of fan-shaped members 7 moves forward, as shown in a side view in part in FIG. A lifting member 9 was used.

In the device, except for the external force applied to the elevating member 9, each fan-shaped member 7 gathers toward the center of the device by the annular coil spring 8 (see FIGS. 1 and 2), and is placed inside the new metal lid 6. If the elevating member 9 is lowered with the fan-shaped member 7 facing, the peripheral wall portion 5
It is possible to obtain a diameter-expanding effect on the diameter.

Further, a handle lever 10 is used to lower the elevating member 9, and this handle lever 10 is supported by a shaft 11, and in the upright state, the small diameter portion 10a of the base is in contact with the upper surface of the elevating member 9. , the large diameter portion 10b comes into contact with each other by lying down.

This provides a blade for lowering the lifting member 9, but since there is always frictional contact between the base of the handle lever 10 and the lifting member 9.
Abrasion occurs on both sides, and a great force is required to operate the fan-shaped member 7 smoothly.

As described above, the occurrence of wear on each member reduces the amount of forward movement of the fan-shaped member 7, and the accurate diameter expansion function of the peripheral wall portion 5 is lost in a short period of time.

In addition, since a large amount of force is required for operation, it is difficult work for workers with limited physical strength, such as elderly workers.

The present proposal (based on the above-mentioned viewpoints) is a metal lid fitting device that can provide a large amount of forward movement to the fan-shaped member by applying an extremely small external force, and that is less likely to cause wear on each member, especially the base of the handle lever. In this method, multiple sets of rolling elements are used to advance the fan-shaped member,
Furthermore, an annular body rotatably fitted to the eccentrically supported base of the handle lever is brought into contact with the elevating plate that controls the formation and collapse of the operating state to avoid wear.

An embodiment of the metal lid fitting device of the present invention will be described with reference to FIGS. 4 and 5. The right half of FIG. 4 shows the state before the diameter expansion operation, that is, the non-operating state, and the left half of FIG. As shown in the diagram showing the formation of the operating state after the diameter expansion operation, the device of the present invention has a plurality of fan-shaped members each having a claw-shaped portion 14a at the tip on a base 13 on which a short support 12 serving as the center of the device is erected at the center position. 14 are arranged horizontally and radially, and a set of three rolling elements 16, 16, 17 each having two small diameters and one large diameter are arranged between the hub 15 that fits into the short strut 12 and each fan-shaped member 14. A rolling element group 18 is incorporated therein.

The rolling elements 16, 16.17 are steel balls or steel rollers, and are treated with anti-corrosion treatment such as chrome plating.

As shown in FIG. 4, when the elevator plate 19 is in the raised state, the fan-shaped members 14 are gathered toward the center of the device by the annular coil spring 20, and the rolling elements 17 of the rolling element group 18 have a large diameter, and the rolling elements 17 have a small diameter. It is in a floating state as it is pushed up by the rolling elements 16 and 16, and the rolling element 17 is in contact with the lower surface of the elevator plate 19.

Such an ecology is therefore inactive.

When the rolling element group 18 is in the operating state, the rolling elements 16, 17, .
16 are in series, the annular coil spring 20 is expanded and stored, and the lowered lifting plate 19 ensures the series operating state of the rolling element group 18, and the rolling elements 16, 17 are in an inoperative state. This prevents the .16 from collapsing from being in series.

A handle lever 21 that provides a downward movement to the elevator plate 19
．． Reference numeral 21 denotes a bracket part 2 which is integrated with the base 13 by an eccentric shaft 23 passing through the eccentric position of the cylindrical part 22 of the base.
It is supported by 4.24.

Ring bodies 25, 25 are rotatably fitted into the cylindrical portions 22 formed on both sides of the bases of the handle levers 21, 21, as shown in a longitudinal cross-sectional side view in FIG.

The handle levers 21 and 21 in the upright position are attached to the bracket parts 24 and 24 by magnets 26 and 26, respectively, and the frame plate 27 integrated with the base 13 is attached to the opening of the container. The handle lever 21 presses the folded part 4 of the peripheral wall part 5 of the metal lid 6 which overlaps the curled part 3 of the metal lid 6, and when the handle lever 21 is laid down, the stopper 28
．． 28 (only one of which is shown) regulates the tilting limit.

When lying down, stopper 28.28 (only one shown)
The tilting limit is regulated by

Since the device of the present invention is constructed as described above, the base plate 13 is set on the metal lid 6 fitted to the container mouth, the folded part 4 of the metal lid peripheral wall part 5 is overlapped on the curled part 3 on the mouth part 2 side of the container, Frame board 27
When the handle levers 21, 21 are simultaneously tilted to the left and right sides while being pressed by the handle levers 21, 21, the rings 25, 25 lower the elevator board 19 while coming into rotational contact with the elevator board 19.

Due to the lowering of the lifting plate 19, the rolling element 17 is moved to the rolling element 16°16.
The group of rolling elements 18 enters the space between them and forms a series, and the group of rolling elements 18 enters the operating state. At the same time, the fan-shaped members 14 move forward all at once and close the metal lid 6.
The lower part of the peripheral wall 5 is expanded in diameter.

Except for the external force applied to the handle levers 21, 21,
Due to the movement of the fan-shaped member 14 that is gathered toward the center by the annular coil spring 20, the rolling element group 18 changes from the operating state to the non-operating state and returns to the old state.

The device of this invention applies a forward force to each fan-shaped member by shifting the operating state of the rolling element group, and the ring body of the handle lever is slightly displaced while rotating in contact with the elevating plate, thereby imparting pressure. It can be operated with an extremely small force, and has many practical effects, such as being able to secure the metal lid fitting function over a long period of time with almost no wear.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view illustrating the fixed state of the metal lid, Fig. 2 is a partially cutaway plan view illustrating the arrangement of the fan-shaped members of the metal lid fitting device, and Fig. 3 is a forward force applied to the fan-shaped members. FIG. 4 is a side view showing the elevating member and the base of the handle lever, and FIG. 4 is a longitudinal sectional view showing an embodiment of the proposed device, with the right half showing the state before operation and the left half showing the state after operation. . FIG. 5 is a longitudinal side view showing the base of the handle lever. 12・;・・・Short support, 13・・・Base, 14
...Fan-shaped member, 15...Hub, 16.
17...Rolling element, 18...Rolling element group,
19... Elevating board, 20... Annular coil spring, 21... Handle lever, 22...
... Circular body part, 23 ... Eccentric shaft, 24 ...
・Bracket part, 25... Ring body, 26...
... Magnet, 27... Frame board, 28...
...Stopper.

Claims (1)

[Scope of utility model registration request] A base 1 with a short support 12 erected at the center of the device
3, a large number of fan-shaped members 14 having claw-like processed portions 14a at their tips are made to have the habit of elastic collective movement toward the center of the base 13, are arranged horizontally and radially, and are fitted into the short columns 12. A plurality of rolling element groups 18 each consisting of a plurality of rolling elements 16 and 17 arranged in the radial direction of the device are arranged between the hub 15 and each sector member 14, and each rolling element group 18
A handle lever 21 that can be raised and lowered is supported on a bracket part 24, 24 that is integrated with the base 13 by an eccentric shaft 23 that passes through the eccentric position of a cylindrical part 22 formed on both sides of the base. , 21 are provided, and a ring body 25 that can be freely rotatably pressed against the lifting plate 19 is attached to the cylindrical portion 22 of these handle levers 21, and a peripheral wall portion of the metal lid overlapped with the curled portion of the mouth of the container is attached. A metal lid fitting device is provided with a frame plate 27 for pressing the folded portion, and the peripheral wall portion of the metal lid is expanded in diameter in a horizontal radial direction to secure the metal lid to the container mouth.