JPH0230976Y2 - - Google Patents

Description

[Detailed Description of the Invention] Field of the Invention The present invention relates to a lid attachment structure for a heat-retaining water bottle.

Conventional technology and its problems Conventionally, it consists of a main body that houses a medium bottle inside, and a lid that is removably screwed onto the upper threaded part of the main body, and the outer diameter of the lid is approximately the same as that of the main body. Various heat-retaining water bottles have been proposed in which a body and a lid are screwed together to form an integral cylindrical body.

However, in this type of thermal water bottle, there is no hook on the lid, so if the lid is tightly screwed onto the main body, a person with small hands, such as a child, cannot easily remove the lid.

Therefore, we provided convex portions extending the entire length in the vertical direction at two symmetrical locations on the outside of the lid and the main body.
By hooking your finger on this protrusion and turning the lid,
It is conceivable that the lid body can be easily attached and detached.

Purpose of the invention The present invention is to screw the lid onto the main body of an insulated water bottle with such a protrusion, and position the lid and prevent it from loosening when the protrusion on the lid and the protrusion on the main body match. The purpose of the present invention is to provide a structure for attaching a lid of a heat-retaining water bottle.

Structure of the invention In order to achieve the above object, protrusions extending the entire length in the vertical direction are provided at two symmetrical locations on the outside of the main body and the outside of the lid, and on the upper end surface of the protrusion of the main body. A locking protrusion whose upper surface slopes outward and downward is provided, while a recess is formed on the inner surface corresponding to the convex part of the lid, and the lid is screwed onto the main body so that the locking protrusion and the recess fit together. A screw contact surface is provided on the main body side, which one of the screws comes into contact with.

DESCRIPTION OF EMBODIMENTS The present invention will be described below with reference to the accompanying drawings, which are examples of the present invention.

The drawing shows an example of a heat-retaining water bottle according to the present invention.
Reference numeral 1 designates a main body integrally molded from synthetic resin into a substantially cylindrical shape, and reference numeral 12 designates a lid body integrally molded to have approximately the same diameter as the main body 1. At two symmetrical locations on the outer surface of the main body 1 and the outer surface of the lid body 12, trapezoidal convex portions 2 and 13 extending over the entire length in the vertical direction are protruded. A boss portion 3 is provided protruding from the outer surface of the convex portion 2 of the main body 1, and a hanging string 6 is connected to this boss portion via a metal fitting 4 and a horn 5. Convex portion 2 of main body 1
A locking protrusion 7 having a substantially triangular cross section is integrally protruded from the upper end surface, and a male thread 8 is formed above the locking protrusion 7, and a screw contact surface 9 is provided near the protrusion 2 of the male thread 8.
is formed. Note that 10 is a sprue, 11 is a male screw that is screwed into a stopper (not shown) for closing the sprue, and a medium bottle (not shown) for storing liquid at a temperature is housed inside the main body 1.

On the other hand, a recess 14 is provided on the inner surface of the lid 12 corresponding to the convex portion 13, and a female thread 15 is formed on the lower inner circumferential surface of the lid 12, avoiding the recess 14.

Here, a method for attaching the lid 12 will be explained. First, when the female screw 15 of the lid 12 is screwed into the male screw 8 of the main body 1, as the screw is screwed, one side surface 14a of the recess 14 comes into pressure contact with the inclined surface of the locking projection 7 and smoothly expands outward. While being opened, both side surfaces 14a and 14b of the recess 14 fit into both side surfaces 7a and 7b of the locking projection 7 while crossing the upper surface of the locking projection 7. At the same time, the tip of the female screw 15 comes into contact with the screw abutting surface 9, and the threaded connection is terminated. As a result, the convex portion 2 of the main body 1
and the convex portion 13 of the lid body 12 are aligned vertically and positioned (see FIG. 1). That is, the recess 1
When both side surfaces 14a, 14b of 4 fit into both side surfaces 7a, 7b of locking protrusion 7, there is a kind of click feeling, and since the tip of female screw 15 comes into contact with screw contact surface 9, further rotation is prevented. is regulated and the screwing is completed. In this state, even if the lid 12
Even if a rotational force is applied in the direction opposite to the screwing direction, the lid body 12 will not freely rotate due to the fitting between the side surface of the recess 14 and the side surface of the locking projection 7. To remove the lid 12, hook your finger on the protrusion 13 and forcibly rotate the lid 12 in the opposite direction to the screwing direction, so that the side surface of the recess 14 rides on the locking protrusion 7, and then The lid 12 can be removed by rotating it.

In addition, in the above embodiment, an example was shown in which the trapezoidal recess 14 formed on the inner surface of the lid body is fitted in two places on both sides of the trapezoidal locking protrusion 7, but in this case, only one This has the effect that the stability during fitting is increased compared to the fitting of a protrusion and a single recess. Also,
Both sides of the locking projection 7 and both sides of the recess 14 are formed with curved surfaces that match each other, thereby preventing the resin from being damaged when the locking projection 7 and the recess 14 are fitted into and removed from each other. are doing.

Effects of the Invention As described above, according to the present invention, since a convex portion is provided on the outer surface of the main body and the lid, even children can easily attach and detach the lid by hooking their fingers on the convex portion. Moreover, the engagement between the locking protrusion of the main body and the recess of the lid is achieved after the lid gradually expands due to the slope of the upper surface of the locking protrusion in response to the downward movement of the lid as it is screwed together. Since the convex parts are fitted in the same position, not only can the operation be performed smoothly, but also the lid can be positioned with respect to the main body and can be prevented from loosening.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of the thermal water bottle according to the present invention, Fig. 2 is a perspective view of its lid, Fig. 3 is a top perspective view of the main body, and Fig. 4 is an enlarged view of the main parts of Fig. 3. be. 1... Main body, 2... Convex portion, 7... Locking protrusion, 8
... Male thread (threaded part), 12 ... Lid body, 13 ...
Convex portion, 14...Concave portion, 15...Female thread (threaded portion).

Claims (1)

[Scope of utility model registration request] In an insulated water bottle consisting of a main body that houses a medium bottle inside and a lid that is removably screwed onto the upper threaded part of the main body, a vertical A convex portion extending over the entire length in the direction is provided, a locking protrusion whose upper surface slopes outward and downward is provided on the upper end surface of the convex portion of the main body, and a concave portion is provided on the inner surface corresponding to the convex portion of the lid body. A lid mounting structure for a heat-retaining water bottle, characterized in that the lid is screwed onto the main body and a screw contact surface is provided on the main body side with which one of the screws comes into contact when the locking protrusion and the recess are fitted together. .