JPH0137455Y2 - - 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. Conventionally, in this type of thermos flask, the structure for removably attaching the strap to the outer cylinder of the main body was to provide annular members made of metal at axially symmetrical positions on the outer cylinder, and attach the ends of the straps to each annular member, respectively. There are known structures in which one side is threaded through and the other end is fastened with a drum button, and both ends are fastened with a metal ring. However, all of these conventional mounting structures have the problem that it takes a lot of effort to attach and detach the strap from the main body.

This invention was made to solve the above problems,
It is an object of the present invention to provide a mounting structure for a detachable strap for a thermos flask, which is easy to attach and detach and is sufficiently prevented from coming off during attachment.

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

1 to 4 are diagrams showing an embodiment of the present invention. In these figures, numeral 1 is the main body of the thermos flask. This thermos bottle body 1 has an inner tank 2 and an outer cylinder 3 made of stainless steel, for example.
A vacuum insulation layer 4 is formed between the outer cylinder 3 and the outer cylinder 3, and a protector 5 is provided to cover the vicinity of the upper end of the outer cylinder 3. The inner tank 2 and the outer cylinder 3 are connected at their upper ends to form a mouth (not shown), and an inner lid (not shown) and an outer lid 6 covering the outside thereof can be opened and closed. It is set freely.

The protector 5 is, for example, as shown in FIG.
A protrusion 3a extending in the circumferential direction formed on the outer surface of the outer cylinder 3
The protector 5 is fixed to the thermos bottle body 1 by fitting into a groove 5a formed on the inner surface of the protector 5. A pair of mounting portions 7 are provided at approximately axially symmetrical positions on the outer surface of the protector 5 so as to face each other in the circumferential direction. Each of these mounting parts 7 has a pin 8.
A male fitting member 9 is rotatably attached at each proximal end via.

The male fitting member 9 is formed using an elastic material having elasticity, and has an engaging member 10 extending in a U-shape from its base end toward one side in substantially opposing directions. It becomes. In this example, the engagement member 10
are provided such that the distance between them is wider on the upper open distal end side than on the base end side. Furthermore, engagement protrusions 11 are formed at the distal ends of the engagement members 10 so as to protrude outward from each other. The male fitting member 9 is made of an elastic material as described above, and the engaging member 10 is elastically deformable.

On the other hand, at both ends of the strap 12, there are provided female fitting members 13 that can be fitted with the engaging members 10 of the male fitting member 9. The fitting female member 13 is a second
As shown in FIG. a and FIG.
At its upper end there is a hole 14 for attaching the strap 12.
is drilled. Further, a guide portion 15 is provided between the lower end portion and the intermediate portion of the substrate portion 13a to cover one side surface of the substrate portion 13a. In this case, the guide portion 15 includes side wall portions 15a that stand up substantially at right angles to opposing both sides of the substrate portion 13a and extend vertically.
and a cover plate part 15b disposed parallel to one surface of the base plate part 13a at a predetermined distance from each other to form an insertion hole 15c that opens at the upper and lower ends, and these base plate parts 13a, The engaging members 10, 10 of the male fitting member 9 are fitted into the insertion hole 15c formed by the side wall portion 15a and the cover plate portion 15b. Then, the opposing side wall portion 1
The upper end of 5a is the engaging member 10 of the male fitting member 9.
The engagement protrusion 11 serves as an engagement portion 16 for engagement.

Further, a pull-out prevention member 17 is provided above the guide portion 15 of the female fitting member 13 and is movable along the vertical direction of the base plate portion 13a. This extraction prevention member 17 is a plate material formed in a tapered rectangular shape that is slightly tapered toward the insertion hole 15c of the guide portion 15, and is inserted into the insertion hole 1 from the upper end opening of the insertion hole 15c.
A long hole 18 is formed so that the screw 19 fixed to the base plate part 13a can be freely inserted into and removed from the base plate part 5c, and the screw 19 fixed to the base plate part 13a is loosely engaged with the long hole 18.
placed on top of the base plate portion 13 and guided by the screws 19.
a It is movable along the upper surface. The pull-out prevention member 17 has a width such that when the male fitting member 9 is fitted into the insertion hole 15c of the guide portion 15 of the female fitting member 13, the width is set in a U-shape. Part 1
The width is such that it can be fitted between the tip ends of the male member 9, and when the two members are engaged, the pull-out prevention member 17 is fitted and the U-shaped engaging member 10 of the mating male member 9 is secured between both ends. The engaging protrusion 1 is prevented from elastic deformation in the approaching direction.
1, 11 and the engaging portions 16, 16 are held in engagement with each other.

Next, in the above strap mounting structure,
Explain how to attach and detach the strap.

First, to attach the strap 12 to the thermos main body 1, press the U-shaped engagement member 10 of the male fitting member 9 in the directions of arrows A and A' as shown in FIG. The insertion hole 15 of the guide part 15 is inserted from the distal end of the female fitting member 13 with the distance between them narrowed.
c, and the engaging protrusion 11 of the U-shaped engaging member 10 is engaged with the engaging portion 16 at the upper end of the guide portion 15. Next, the pull-out prevention member 17 is moved from the upper opening toward the insertion hole 15c of the guide portion 15, and is inserted between the tips of the U-shaped engagement member 10 as shown in FIG. 4 to complete the installation. .

In this way, attach the strap 12 to the thermos bottle body 1.
In the state shown in FIG. 4, the engagement protrusion 11 of the U-shaped engagement member 10 engages with the engagement portion 16 of the guide portion 15, and the extraction prevention member 17 engages. Elastic deformation of the member 10 is prevented, and the connection between the male fitting member 9 and the female fitting member 13 is reliably maintained.

In addition, in order to remove the strap 15 from the thermos main body 1, first pull out the extraction prevention member 17 from between the U-shaped engagement members 10, and then use your finger or the like to remove the U-shaped engagement member 10.
in the direction of arrows B and B' in Fig. 4 to release the engaging protrusion 1.
1 and separate it from the engaging part 16 of the guide part 15, and pull the fitting female member 13 in the direction of arrow C in FIG. 4 to remove it. In this embodiment, a thin groove for preventing slipping is formed on the surface of the cover plate 15b in order to facilitate the fitting between the male fitting member and the female fitting member, but this may be formed as appropriate. .

As described above, the strap attachment structure according to the present invention allows the strap 12 to be easily attached to and detached from the thermos bottle body 1 by elastically deforming the U-shaped engagement member 10 of the male fitting member 9.

Note that the present invention is not limited to the above-mentioned embodiment, and for example, the cover plate part 15b of the guide part 15 may be separated at the middle part and provided only in the vicinity of the side wall part 15a. It is also possible to provide a spring that urges the guide portion 15 toward the guide portion 15 so that the connected state during use can be maintained more reliably.

As is clear from the above explanation, the strap attachment structure of the present invention is such that the engaging member of the male fitting member attached to the thermos flask body is elastically deformed, and the female fitting member attached to the end of the strap is inserted. By inserting the strap into the hole and engaging the engaging protrusion of the male fitting member with the engaging portion of the female fitting member, the strap can be locked to the thermos body. In addition, by moving the extraction prevention member and inserting it between the engaging members of the mating male member and preventing elastic deformation of the engaging member, the fitted state of the mating male member and the mating female member is ensured. Even if force is applied to the mating part due to an operation such as hanging the thermos bottle body with the strap, the connection between the mating male member and the mating female member will not come loose, and the strap will Since it does not fall off, it has the effect of allowing you to carry the thermos bottle safely.

In addition, in order to remove the mating male member and the mating female member that have been securely fitted as described above, the engaging member can be easily elastically deformed by moving the extraction prevention member and pulling it out from between the engaging members. Therefore, the strap can be easily removed from the thermos bottle body by elastically deforming the engaging member and pulling it out from the insertion hole.

As described above, according to the present invention, it is easy to attach and detach the strap from the thermos bottle body, and when the strap is attached, even if forces are applied in various directions due to operations such as suspending the thermos bottle body from the strap, the strap will not hold. A structure that does not come off can be provided.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional front view showing an embodiment of the present invention, FIG. FIG. 3 is a front view of the example mating male member in half cross section,
FIG. 4 is a side sectional view of the female fitting member shown in FIG. 2a, and a front view showing a state in which the male fitting member and the female fitting member are connected. DESCRIPTION OF SYMBOLS 1... Thermos main body, 7... Mounting part, 9... Fitting male member, 10... Engaging member, 11... Engaging protrusion,
12... Strap, 13... Fitting female member, 13
a... Board part, 14... Hole, 15... Guide part, 1
5a... Side wall portion, 15c... Insertion hole, 16... Engaging portion, 17... Extraction prevention member, 18... Long hole, 1
9...Bis.

Claims (1)

[Scope of Claim for Utility Model Registration] A thermos bottle in which a male fitting member is provided on the main body of the thermos bottle, a female fitting member is provided at the end of the strap, and the male fitting member is removably fitted to the female fitting member. In the structure for attaching the strap to the strap, the male fitting member is made of an elastic material and includes a base end, an engaging member protruding from the base end in a bifurcated shape, and a distal end of these engaging members. and engagement protrusions projecting outward, respectively, and is attached to the thermos bottle main body at the base end, while the fitting female member is formed on a base plate and one side thereof. The guide part has a hole for connecting the strap and a guide part formed on the other side of the base plate, and the guide part forms an insertion hole into which the engaging member of the male fitting member can be inserted. It has a protruding side wall portion and an engaging portion formed on the side wall portion to removably engage the engaging protrusion of the engaging member, and has a guide portion near the guide portion that guides the engaging protrusion along the base plate portion. A pull-out prevention member is provided so as to be freely accessible to the guide portion and removably inserted between the engaging members inserted and fitted into the guide portion to prevent elastic deformation of the distal end side of the engaging member. A mounting structure for a detachable strap for a thermos flask.