JPH024581Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a thermos flask having a lanyard, in which the lanyard is detachably attached to the outer cylinder of the thermos flask.

BACKGROUND ART Conventionally, portable thermos flasks have been provided that are equipped with a string so that they can be easily carried. Some thermos flasks of this type have a structure in which a strap is detachably attached to the outer cylinder to make handling more convenient. In this type of device, annular members made of metal are provided at axially symmetrical positions of the outer cylinder, the ends of the straps are passed through each annular member, one of the ends is fastened using a hook, and the other is secured. Structures that are fastened with a drum button, and structures that are fastened with sarukan at both ends are known.

However, all of the above-mentioned conventional strap attachment structures have the problem that it takes a lot of effort to attach and detach the strap to the outer cylinder, and there is currently a need for a solution to this problem.

This idea was made in view of the above circumstances,
It is an object of the present invention to provide a structure for attaching a detachable strap for a thermos flask, which allows the strap for carrying the thermos flask to be easily attached and detached.

This invention will be explained below with reference to the drawings. 1 to 8 show an embodiment of this invention, and reference numeral 1 in the figures indicates a metal thermos flask. On the upper outer peripheral surface of the outer cylinder 2a of the vacuum double bottle 2 constituting this metal thermos 1, this outer cylinder 2a
An outer cylinder protector 4 is attached that serves both as a protection for the outer cover 3 and as a fitting portion of the cup-shaped outer cover 3.

This outer cylinder protector 4 is made of a material with good moldability, such as plastic, and its lower end side 4
Fitting recesses 5, 5 are formed in the outer peripheral surface of the lower end side portion 4a.

As shown in FIGS. 2 and 3, this fitting recess 5 is formed by hollowing out the wall of the lower end side portion 4a, and projecting walls 5a, 5a continuously protrude outward. It is constructed by forming. An introduction groove 6 and a pair of fitting grooves 7a,
7b is formed. The fitting groove 6 opens outward and is formed substantially horizontally with respect to the wall of the lower end side portion 4a from the fitting recess 5 to the innermost part.
The fitting grooves 7a and 7b are formed continuously with the introduction groove 6. The fitting groove 7a is formed in an arc shape upward from the innermost part of the introduction groove 6.
b is formed in an arc shape downward from the vicinity of the opening of the introduction groove 6, and these fitting grooves 7a, 7b
is located on the circumference whose center point is located on the introduction groove 6. In addition, the fitting grooves 7a, 7b
A leaf spring 8 for locking is attached inside.

On the other hand, as shown in FIG.
a and 9a are formed into a loop shape using binding metal fittings such as a metal hook, and connecting metal fittings 10 and 10 are attached to both ends 9a and 9a, respectively.
Fitting fittings (fitting tools) 11, 11 are rotatably attached to these connecting fittings 10, 10, respectively.

As shown in FIG. 4, the connecting fitting 10 is made by cutting and bending a thick plate-shaped metal member.
A frame-shaped portion 10a connected to the strap 9 and a fitting fitting 11
A curved portion 10b rotatably supports the.

As shown in FIG. 5, the fitting 11 includes a main body 11A consisting of a pair of discs 11a, 11a and a rotating shaft 11b that integrally connects these discs 11a and 11a, and The outer surface of the plate 11a (the surface opposite to the surface where the rotating shaft 11b is provided)
A pair of fitting tabs 1 each integrally protruding from the
1c and 11c. The rotating shaft 11b is located on the central axis of the disks 11a and 11a, the pair of fitting parts 11c and 11c are rotationally symmetrical to each other, and one pair of fitting parts 11
c, 11c and the other pair of fitting parts 11c, 11c
It is in a plane symmetrical position with. Therefore, if the fitting 11 is rotated by 180 degrees around the rotating shaft 11b, the fitting 11c will always be located at the same position.

Therefore, in order to attach the lanyard 9 to the metal thermos 1, first, the fitting fitting 1 is rotatably attached to the end 9a of the lanyard 9 via the connecting fitting 10.
The fitting fitting 11 is inserted into the fitting recess 5 by inserting the pair of fitting fittings 11c, 11c on each side of the fitting into the introduction grooves 6, 6 of the fitting recess 5 and sliding them. After the fitting 11 is inserted deep into the fitting recess 5, the fitting 11 is rotated in a predetermined direction. As a result, each fitting portion 11c... rotates against the biasing force of the locking leaf spring 8... and fits into the fitting groove 7a, 7b,..., resulting in the proposal shown in FIG. The string 9 is now attached. In this state, since the leaf spring 8 is present, the fitting between the fitting grooves 7a, 7b and the fitting 11c will not be released unless the fitting 11 is intentionally rotated, and the strap 9 and the fitting 11c will not be released. The connection of the metal thermos 1 is stable. Conversely, rotate the fitting 11,
By unfitting the fitting grooves 7a, 7b and the fitting part 11c and removing the fitting fitting 11 from the fitting recess 5, the strap 9 can be easily removed from the metal thermos flask 1.

In the above embodiment, the metal thermos flask 1 was explained as an example of a thermos flask, but since the double vacuum flask 2 is made of metal, it is durable, and therefore the outer cylinder protector 4 can be easily attached. This is because there are features that allow it to be carried out. However, if the outer cylinder protector can be reliably attached to vacuum double bottles made of other materials, this invention can be fully applied to thermos bottles made of other materials as well.

Furthermore, although the fitting recesses 5 are provided at two locations in the above embodiment, they may be provided at two or more locations as required, or may be provided at one location in some cases.

As explained above, this invention provides a pair of protruding walls on the side surfaces of the outer barrel protector of a thermos bottle, forms an introduction groove and a fitting groove on the inner surface of the protruding walls, and a fitting groove inserted between the protruding walls. By rotating the tool, you can insert the fitting into the fitting groove and prevent it from coming off with the leaf spring, so you can attach a strap to the fitting and then attach it to the projecting wall to prevent it from coming out. can. Furthermore, by rotating the fitting tool as necessary, the fitting tab of the fitting tool can be removed from the fitting groove and the fitting tool can be removed, making it extremely easy to attach and detach the lanyard for carrying the thermos. It can be carried out.

In addition, when the fitting part of the fitting tool is inserted into the fitting groove of the projecting wall and is prevented from coming off by the leaf spring, by supporting the lanyard and supporting the thermos, forces are applied to the fitting tool in various directions. Even if the fitting tool acts, the fitting tool will not come off because the fitting part comes into contact with the inner wall of the fitting groove and its movement is prevented. Also, when supporting a thermos by supporting a lanyard, rotational force may be applied to the fitting part depending on how it is supported, but even if the fitting part tries to come off from the fitting groove, the leaf spring resists. Therefore, the fitting tool can be prevented from coming off.

Therefore, the present invention is an extremely suitable structure for the attachment part of the lanyard of a thermos flask, where forces act in various directions depending on the usage and support conditions.

[Brief explanation of the drawing]

Figures 1 to 8 are for explaining one embodiment of this invention, in which Figure 1 is an overall side view partially cut away, Figure 2 is a front view of the fitting recess, and Figure 3 is a front view of the fitting recess. Figure 2 - sectional view taken from the line, Figure 4 is a perspective view of the connecting fitting, Figure 5 is a perspective view of the fitting fitting, and Figure 6 is a front view showing the fitting fitting inserted between the projecting walls. , FIG. 7 is a sectional view showing a state in which the fitting tool is inserted between the projecting walls, and FIG. 8 is a sectional view showing a state in which the fitting piece is inserted into the fitting groove. 1...Metal thermos flask, 4...Outer tube protector, 4a
... Lower end side of outer cylinder protector, 5 ... Fitting recess, 5
a...projection wall, 5b...side surface, 6...introduction groove, 7
a, 7b... Fitting groove, 8... Leaf spring, 9... Strap, 11... Fitting fitting (fitting tool), 11A... Body part, 11c... Fitting piece.

Claims (1)

[Claims for Utility Model Registration] A fitting recess is formed by providing a pair of protruding walls that protrude oppositely from each other on the circumferential surface of the outer cylinder protector, and the fitting recess is formed on each of the opposing inner surfaces of the protruding walls. An introduction groove which is opened at the edge of the projecting wall and grooved toward the base side, and a circular arc drawn symmetrically by a center point located on the introduction groove on both sides of the introduction groove. A pair of fitting grooves each communicating with the introduction groove and having a leaf spring disposed therein for preventing slipping out are formed therein, and the fitting groove is connected to the strap and installed in the fitting recess. A fitting tool is inserted into the introduction groove and protruded into each of a main body portion having a width that can be freely inserted into a fitting recess formed between the pair of projecting walls, and walls on both sides of the main body portion. The length is such that the main body can be suspended in the fitting recess between the walls,
It consists of a pair of fitting tabs that are spaced apart and protruding in accordance with the arrangement interval of the pair of fitting grooves, and the fitting tool to which the strap is connected connects each fitting tab provided on the fitting tool. A removable thermos flask characterized in that the thermos flask is inserted into a fitting groove through an introduction groove arranged on the projecting wall, and is attached to the projecting wall by locking each fitting tab in the fitting groove with a leaf spring. Strap attachment structure.