JPH0137457Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a thermos flask having a strap, and to a structure in which the strap is detachably attached to the body of the thermos flask.

As is well known, portable thermos flasks are provided with straps for convenient carrying. In the past, many ideas have been made for the attachment structure between the thermos bottle body and the strap in this type of thermos bottle, and some of them have been implemented.
In both cases, when the strap is removed, a structure for attaching the strap protrudes from the outer peripheral surface of the main body. For this reason, a thermos flask,
When the strap is removed and carried, for example, stored in a bag or the like, the structure for attaching the strap may get caught on a part of the bag and become a nuisance or cause damage, or may cause damage to other items stored together. This has caused the inconvenience that it may cause damage to the surface. Furthermore, when the strap is not used, there is an unnecessary protrusion, which has the disadvantage of spoiling its aesthetic appearance.

The present invention has been made in view of the above circumstances, and provides an attachment structure for a strap of a thermos bottle, which allows the strap to be attached and detached, and which eliminates unnecessary protrusions on the outer surface of the thermos bottle body when the strap is removed. The purpose is to

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

1 to 3 are diagrams showing an embodiment of the present invention. In these figures, numeral 1 is the thermos bottle body, and 2 is the strap.

The thermos main body 1 includes a heat-retaining tank 5 formed by integrally connecting an outer cylinder 3 and an inner tank 4 disposed inside the outer cylinder 3 at their respective upper end openings, and an opening surface at the top of the heat-retaining tank 5. It has a protector 6 fixed so as to cover the protector 5a. The heat retaining tank 5 is made of metal such as stainless steel, and has an opening surface 5a.
is formed into a cylindrical shape coaxial with the center axis of the heat insulation tank 5, and a vacuum heat insulation layer 5 is formed between the outer cylinder 3 and the inner tank 4.
b.

The protector 6 is made of a material such as a synthetic resin, and covers the cylindrical opening surface 5 of the heat-retaining tank 5.
a cylindrical portion 6a that covers the cylindrical portion 6a, and a funnel-shaped spout portion 6b whose diameter increases upward from the upper end of the cylindrical portion 6a.
and an external protection cylinder part 6c that is connected to the middle part of the outer surface of the spout part 6b, has a stepped diameter, extends downward, and is formed so as to cover the upper part of the outer cylinder 3. Formed in one piece.

The heat-retaining tank 5 and the protector 6 include a male screw portion 5c formed on the outer surface of the outer cylinder 3, and a female screw portion 6 formed on the inner surface near the lower end of the outer protection cylinder portion 6c of the protector 6.
d are screwed together. In addition, the protective body 6
The lower end of the cylindrical portion 6a and the opening surface 5a of the heat retention tank 5
A packing 7 is interposed between the lower end and the lower end.

A stopper 8 for adiabatically sealing the heat-retaining tank 5 is provided in the cylindrical part 6a and the spout part 6b of the upper part of the thermos main body 1 so as to be openable and closable, and the spout part 6b of the protector 6 An outer lid 9 is provided so as to be openable and closable.

Further, strap attachment parts 10, 10 are provided on the outer circumferential portion of the external protection cylinder part 6c of the protection body 6 at positions facing each other across the axis of the protection body 6, respectively. That is, the protector 6 is formed with a recess 11 having a rectangular opening 11a on its outer peripheral surface. This recess 11 includes a peripheral wall 11b and a bottom wall 1 that are integrally provided on the inner surface of the protector 6.
1c. The opening 11a connects the outer protective cylinder part 6c of the protector 6,
The support edge 12 is formed as an edge of a support edge 12 that slightly extends from the joint between the protective cylinder 6c and the peripheral wall 11b.

Further, inside the recess 11, the opening 11a is provided.
A blind lid 13 that can be opened and closed is provided. This blind lid 13 is formed in a plate shape, and
The center of the outward facing surface of the opening 11a is projected with a shape that matches the opening 11a, and a circular fitting recess 13a is bored in the middle of the back surface. This blind lid 13 has a spring 14 interposed between a fitting recess 13a on the back side and a bottom wall 11c forming the recess 11, and is biased by the spring 14 in a direction to close the opening 11a. It is placed in a state where The surface of the blind lid 13 is flush with the outer peripheral surface of the protector 6 when the opening 11a is closed, as shown in FIG.

On the other hand, the strap 2 is made of synthetic resin, cloth, leather, etc., like conventional straps, and its both ends are folded back and overlapped along the middle part. It is fixed by a sulcan 15 and has a loop shape. At the looped end of the strap 2, there is a fishing fitting 1 for attaching the strap 2 to the thermos bottle body 1.
6 and 16 are provided. These fishing fittings 16
is formed by bending a plate made of an elastic material such as steel, and the middle part of the plate is wound around the loop-shaped end of the strap 2 and bent into a C-shape. Both ends of this C-shaped portion extend parallel to each other with a distance slightly smaller than the width dimension of the opening 11a of the strap attachment portion 10, and are further bent in opposite directions to engage. Part 16a, 1
6a is formed, and the cross section is S-shaped (one side is inverted S-shaped).
It is formed by being bent into a letter shape.

The fishing fitting 16 can be elastically deformed by pinching and pressing both sides of the C-shaped part with fingers, etc., as shown in FIG. 2A and A'. Both ends 16b, 1 of 16a, 16a
The spacing between 6b can be changed.

The fishing fitting 16 is inserted into the recess 11 of the strap attachment part 10 of the protector 6 as shown in FIG. be combined with

Next, in the above strap mounting structure,
A method for attaching and detaching the strap 2 to the thermos body 1 will be explained.

First, to attach the strap 2, hold both sides of the C-shaped part of the fishing bracket 16 provided at the end of the strap 2 with your fingers, and press as shown by arrows A and A' in FIG. This fishing fitting 16 is elastically deformed to narrow the distance between the engaging parts 16a, 16a.
While pushing the blind cover 13 of the strap attachment part 10 into the recess 11 with the tip of the strap, the engaging parts 16a, 16a are engaged with the support edge 12, and the pressing is released. The fishing fitting 16 expands due to its elasticity and engages the engaging portion 16.
a, 16a positively engages the support edge 12.

On the other hand, in order to remove the strap 2, the fishing fitting 16 is pressed in the directions of arrows A and A' to elastically deform it by reversing the procedure of attachment, and the engaging parts 16a and 16a are separated from the support edge 12 and the recessed part 11 is removed. All you have to do is extract it from Further, when the fishing fitting 16 is removed from the recess 11 of the strap attachment part 10, the blind lid 13 urged toward the opening 11a by the spring 14 closes the opening 11a.

As described above, according to the strap attachment structure shown in FIGS. 1 to 3, the strap 2 can be attached and detached with a one-touch operation by elastically deforming the fishing fitting 16, and 2, when the thermos flask body 1 is not used, the strap attachment part 10 of the thermos flask body 1 is flush with the surface of the body 1 due to the blind lid 13, and there is no member protruding from the surface of the body 1, which may get in the way when stored in a bag or the like. There is no. Moreover, it is possible to provide products with excellent aesthetic appearance.

Next, another embodiment of the present invention will be described with reference to FIGS. 4 and 5.

The mounting structure shown in these figures is shown in Figures 1 to 3.
The difference from the one shown in the figure is the shape of the engagement support plate part 18 of the strap attachment part 17 formed on the protector 6, and the shape of the fishing metal fitting 1 provided at the end of the strap 2.
9 shape. That is, the fishing fitting 19 is formed by bending a metal round rod into a substantially rectangular ring shape. Further, the strap attachment part 17 has an engagement recess 21 formed above the recess 20 for engaging the fishing fitting 19, and extends along the circumferential surface of the protector 6 from the upper end of the engagement recess 21. Engagement support plate portions 18 are provided on both sides of the engagement recess 21 with a gap slightly larger than the diameter of the fishing fitting 19.
Therefore, the opening 2 of this strap attachment part 17
0a is formed in a concave shape as shown in FIG.
The lower side of the opening 20a is always closed by the blind cover 22 except when the strap 2 is attached or detached.

To explain how to attach and detach the strap 2 to the main body 1 in this strap attachment structure, first,
To attach the strap 2, the tip engaging portion 19a of the fishing fitting 19 is pressed against the outer surface of the blind lid 22, the blind lid 22 is pushed into the recess 20, and then the tip engaging portion 19a of the fishing fitting 19 is pressed. What is necessary is just to move it to the engagement recessed part 21 and to engage with the engagement support plate part 18. After this engagement, the blind lid 22 is pushed outward by the elastic force of the spring 23 and closes the opening 20a.

To remove the strap 2, for example, push the blind cover 22 to create a gap, and then remove the fishing fitting 19 from the fifth
Rotate the main body 1 to the position shown by the two-dot chain line in the figure.
Pull diagonally downward (in the direction of arrow B in the figure). This allows the blind lid 22 to come into contact with the lower surface side of the fishing fitting 19.
is pushed into the recess 20 by the force acting on the fishing hook 19 in the direction of arrow B, the lower part of the opening 20a is opened, and the fishing hook 19 is detached from the strap attachment portion 17.

As mentioned above, the strap attachment structure shown in this embodiment also allows the strap to be attached and detached easily with a single touch, and there is no member that protrudes outside of the main body 1 when the strap 2 is removed. can do.

As is clear from the above description, the strap attachment structure of the present invention allows the strap to be easily attached to and detached from the thermos flask body with a single touch operation, and the strap attachment part on the body side has an opening on the outer circumferential surface of the body. Since the strap is formed as a concave portion, it is possible to eliminate a member protruding from the outer peripheral surface of the main body when the strap is removed, which is convenient when storing the strap in a bag or the like. In addition, since the strap attachment portion is closed by the blind cover when the strap is removed, the product has the advantage of providing an aesthetically pleasing product.

[Brief explanation of the drawing]

1 to 3 are views showing one embodiment of the present invention, in which FIG. 1 is a partially sectional front view of the thermos bottle body, FIG. 2 is a planar sectional view of the main part, and FIG. 3
4 and 5 are views showing other embodiments of the present invention, in which FIG. 4 is a side view of the main part, and FIG. 5 is a front view of the main part. FIG. 1...Thermos bottle body, 2...Strap, 10...
...Strap attachment part, 11...Recess, 11a...
Opening portion, 12...Support edge (engaging support portion), 13
...Blind lid, 14...Spring, 16...Fishing fitting, 16a...Engaging part, 17...Strap attachment part, 18...Engagement support plate part, 19...Fishing fitting, 2
0... recess, 20a... opening, 22... blind lid,
23...Spring.

Claims (1)

[Scope of utility model registration request] In the structure in which the strap is detachably attached to the thermos flask body, a recess having an opening is formed on the outer peripheral surface of the thermos flask body, and a blind lid that allows the opening to be opened and closed is provided inside the recess. The strap is provided in a state in which it is elastically biased in a direction that closes the opening, and an engagement support portion is formed in the recess to provide a strap attachment portion, and the engagement support portion is provided at an end of the strap. A mounting structure for a detachable strap for a thermos flask, characterized in that it is provided with a hook having an engaging part that can be engaged and detached from the strap.