JPH0533154Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a hanging structure for a container, such as an infusion container, which needs to be suspended from the bottom.

[Prior Art] Plastic infusion containers are widely used because they are lightweight and easy to handle. Although it is easier to handle infusion containers in a free-standing state during the filling, sterilization, and distribution stages, they must be turned upside down when the contents are to be used. Therefore, the shape of the infusion container is a self-supporting bottle type, and a hanging mechanism is installed at the bottom of the container so that it can be hung with a simple operation.When the hanging mechanism is not in use, it is stored in the bottom of the container and the container is suspended. Some proposals have been made that do not impede uprightness.

In such a hanging mechanism, a method is generally adopted in which the hanging tool is molded separately from the container and the hanging tool is engaged and fixed to the bottom of the container.

An example of a conventionally known suspension mechanism is a suspension mechanism 101 shown in FIG.

In the hanging mechanism 101, a guide rail 104 having a T-shaped cross section is provided on the container 102 and protrudes downward in the axial direction of the container integrally with the bottom wall 103.

The guide rail 104 has a leg portion 105 that connects to the bottom wall 103, and a guide surface portion 106 that extends perpendicularly from the tip of the leg portion 105. A locking protrusion 107 is formed in the center of the guide surface 106 in the longitudinal direction, the protrusion being larger than the remaining portion.

On the other hand, the hanging tool 111 is composed of a sliding main body part 112 that is to be engaged with the rail 104, and a hanging part 113 that is integrally formed with the sliding main body part 112 so as to be able to rise and fall.

The sliding main body 112 has a groove 114 with a T-shaped cross section into which the guide rail 104 can be fitted, and the guide rail 104 is inserted from one end of the groove and the engagement progresses while sliding against each other. allow it to happen. As a stopper for locking the guide rail 104 at a predetermined position, a locking hole 115 is formed in the longitudinal center side surface of the sliding body 112, and the locking hole 115 engages with the locking protrusion 107. This can be locked together.

The hanging portion 113 is connected to the sliding main body portion 112 through a thin wall portion 116, and by bending the thin wall portion 116 and locking the protrusion 118 in the locking portion 117, the hanging portion 113 is attached to the bottom of the container 102. It is configured to be accommodated in a recess 122 between the legs 121, 121.

The hanging structure 101 configured in this way does not interfere with the uprightness of the container when not in use, and when in use, the hanging part 113 can be raised and hung from the hanging hole 123 at the hanging point, making it extremely easy to handle. It's easy.

[Problem to be solved by the invention] However, in such a conventional hanging structure, the force for fixing the hanging tool 111 to the guide rail 104 is due to the force of the engagement between the locking hole 115 and the locking protrusion 107. However, the amount of force required to disengage this engagement is, for example, 17 to 18 kg in the axial direction of the container (vertical direction when in use), and it is difficult to prevent unexpected accidents. However, in the direction perpendicular to the axis (horizontal direction when in use) it weighs 9 to 10 kg, so there is a problem in that it cannot be said that there is no risk of it coming off due to an unexpected accident.

This idea was made in view of the above-mentioned circumstances, and the force required for the hanging tool to disengage in the direction perpendicular to the axis (horizontal direction during use) at the engagement part of the container is lower than that of the conventional one. Axial direction (vertical direction when in use)
To provide a structure for suspending an infusion container, etc., which has a force approximately equal to the force required for the container to come off, and is free from the risk of it coming off due to an unexpected accident due to force in either the vertical or horizontal direction. It is an object.

[Means for Solving the Problems] In response to this purpose, the bottom suspension structure of the infusion container, etc. of this invention has a leg portion projecting downward in the axial direction of the container from the bottom wall of the container, and a leg portion on both sides of the leg portion. A guide rail having a T-shaped cross section and having a vertically extending overhang, a sliding main body that is engaged and fixed on the guide rail, and a sliding main body that is connected to the sliding main body so that it can be raised and folded. In the bottom suspension structure of an infusion container, etc., which includes a hanging tool having a hanging part, the projecting part on at least one side has a locking part protruding in the direction of the projecting part at at least one location in the longitudinal direction of the projecting part. The locking protrusion has a constricted portion near the base of the locking protrusion, and the amount of the protrusion gradually decreases toward the base, and the sliding main body is slidable by fitting the guide rail therein. It has a groove portion with a T-shaped cross section that allows the groove to move, and a hole is bored in the side wall of the groove portion to engage the locking protrusion, and an edge of the hole in the sliding direction is formed. At least a portion thereof is characterized in that it forms a presser portion projecting inward of the groove portion.

[Function] In the suspension structure for an infusion container configured in this way, one end of the guide rail is inserted into one end of the concave groove portion of the hanging tool, and the engagement progresses while sliding each other. This engagement operation is stopped by the engagement of the engagement protrusion of the guide rail with the engagement hole of the hanging tool.

When the locking protrusion is engaged with the locking hole, the edge of the locking hole in the sliding direction forms a presser part that protrudes inward, and this is the locking protrusion. In response to a force in a direction perpendicular to the axis that engages with the constriction near the base of the presser and, as a result, shifts the engagement position between the presser and the constriction, the presser is moved in a direction that cancels out this force. This acts to press down on the constricted part, making it more difficult for the engagement part of the guide rail and hanging tool to come off.

[Example] Hereinafter, details of this invention will be explained with reference to drawings showing an example.

In FIG. 1 and FIG. 2, 1 is a bottom suspension structure. The bottom suspension structure 1 includes a guide rail 5 protruding downward from the bottom wall 3 of the container 2 in the direction of the container axis 4;
The suspension tool 6 is provided with a hanging tool 6 that is engaged and fixed onto the guide rail 5.

The guide rail 5 has a T-shaped cross section, and has a piece-shaped leg 7 that protrudes downward in the axis 4 direction from the bottom wall 3 and an overhang 8 that extends perpendicularly to both sides of the leg 7. It is integrally molded with. As shown in detail in FIGS. 3 and 4, both projecting portions 8, 8 of the guide rail 5 have locking protrusions 11, 1 protruding in the direction of the projecting, respectively, at the central portion in the longitudinal direction.
1 is formed in the longitudinal direction, and importantly, in the vicinity of the base 13 of the locking protrusion 11, a longitudinal direction 1 is formed.
0 has a constricted portion 12 whose overhang amount gradually decreases toward the base 13.

The hanging tool 6 consists of a sliding main body part 14 and a hanging part 9.

The sliding body portion 14 is a portion that is engaged and fixed onto the guide rail 5, and has a groove portion 15 with a T-shaped cross section into which the guide rail 5 is fitted and is slidable in the longitudinal direction 10.

A hole 17 that engages with the locking protrusion 11 is bored in the center of the side wall 16 of the concave groove portion 15 in the longitudinal direction 10. What is important is that the edge of the hole 17 is The edge in the longitudinal direction 10 forms a presser portion 18 that protrudes inwardly from the groove portion 15.
The amount of protrusion is, for example, 0.25 mm from each side for a width of 3 mm of the groove portion 15, or a total of 0.5 mm. As a result, when the locking protrusion 11 of the guide rail 5 engages with the hole 17, the holding portion 18 engages with the constricted portion 13 near the base of the locking protrusion 11 of the guide rail 5. The constricted portion 13 is configured to be able to press the constricted portion 13 in a direction that cancels out a force in a direction perpendicular to the axis that acts to relatively shift the engagement positions of the two.

The hanging portion 9 is formed integrally and continuously with the sliding main body portion via a thin wall portion 21, and has a hole 22. A support member (not shown) for supporting the container 2 is passed through the hole 22 and suspended.

The protrusion 118 is attached to the locking portion 11 by bending at the thin wall portion 21.
7, the hanging tool 6 is attached to the legs 23 of the container 2,
It is the same as before that the container is housed in the groove 24 between the containers 23 and 23 so as not to hinder the container from standing on its own.

[Effect of the invention] In the bottom suspension structure configured in this way, the amount of protrusion of the locking protrusion 11 from the hole 17 also increases relatively, so that it becomes difficult to come off even in response to an axial force. .

According to experiments, in the case of protruding a total of 0.5 mm on both sides of the 3 mm width of the groove mentioned above, the force in the direction perpendicular to the axis is 17 to 20 kg, and the force in the axial direction is 17 to 20 kg.
It is possible to prevent the guide rail from coming off by up to 22 to 30 kg, and the engagement force between the guide rail and the hanging tool can be significantly improved.

As is clear from the above explanation, according to this invention, the force required for the hanging tool to disengage in the direction perpendicular to the axis (horizontal direction during use) at the engagement part of the container is reduced from the conventional axial direction (horizontal direction when in use). Hanging infusion containers, etc., with a force that is approximately the same as the force required to remove them in the vertical direction during use, and that there is no risk of them coming off due to an unexpected accident due to force in either the vertical or horizontal direction. You can get the lower structure.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional end view showing the engagement portion between the guide rail and the sliding main body of the bottom suspension structure of an infusion container or the like according to an embodiment of this invention, indicated by the - part in FIG.
Figure 2 is an exploded front view of the bottom suspension structure of the infusion container shown in Figure 1, Figure 3 is a bottom view of a container with the bottom suspension structure such as the infusion container shown in Figure 1, and Figure 4 is FIG. 3 is an enlarged view of part A in FIG. 3, FIG. 5 is a front view of a suspension tool, and FIG. 6 is an exploded perspective view of a conventional bottom suspension structure of an infusion container or the like. DESCRIPTION OF SYMBOLS 1...Bottom suspension structure, 2...Container, 3...Bottom wall, 4...Shaft, 5...Guide rail, 6...Hanging tool, 7...Legs, 8...Protrusion part, 9 ... Hanging part, 10 ... Longitudinal direction, 11 ... Locking protrusion, 1
2... Narrow portion, 13... Base, 14... Sliding main body, 15... Concave groove portion, 16... Side wall, 17...
Hole, 18... Pressing part, 21... Thin wall part, 22...
Hole, 23...leg.

Claims (1)

[Scope of utility model registration request] A guide rail having a T-shaped cross section and having legs projecting downward in the axial direction of the container from the bottom wall of the container and overhanging parts extending perpendicularly to both sides of the legs, and being engaged and fixed onto the guide rail. A bottom hanging structure for an infusion container or the like, comprising a hanging device having a sliding main body portion and a hanging portion connected to the sliding main body portion so as to be freely raised and folded. The overhang has a locking protrusion protruding in the direction of the overhang at least at one location in its longitudinal direction, and the amount of the overhang gradually decreases toward the base near the base of the locking protrusion. The sliding main body has a concave groove portion having a T-shaped cross section into which the guide rail is fitted and can slide, and the locking protrusion is provided on the side wall of the concave groove portion. A bottom suspension of an infusion container, etc., characterized in that a hole is bored for engaging the hole, and at least a portion of the edge of the hole in the sliding direction forms a presser portion projecting inward of the groove portion. structure.