JPS6012572B2 - Measuring device for measuring the required opening force of containers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a measuring device for measuring the required opening force of a container, particularly a simple opening type that can be easily opened without using an opening tool such as a bottle opener or a key cutter. The present invention relates to a measuring device for measuring the required opening force of a container such as a bottle or a cap having a lid.

Nowadays, containers for drinks or food, etc., can be opened by grasping and pulling the opening tab, such as a pull ring or pull tab, formed on the lid, without using a bottle opener or a mustache clipper. BACKGROUND ART Bottles and warmers having various forms of easy-to-open lids, which can be easily opened by pressing an opening portion formed on the lid, have been proposed and put into practical use. In a container having such an easy-to-open lid, it is important that the force P required to open the lid, ie, the required opening force, be an appropriate value.

If the required opening force is too large, it will become difficult to open the container.
On the other hand, if the required opening force is too small, it may cause problems when sealing the container (i.e., when the opening of the bottle fails, or when tightening the lid to the main body of the bottle).
Alternatively, there is a risk that the container with its contents sealed may be accidentally opened during transportation. Therefore, in containers such as bottles and moths that have easy-to-open lids.

It is often necessary to measure the opening force required to actually open a container. In addition, ``When measuring the necessary opening force, it is important to measure while varying the angle of the tensile force applied to the opening grip formed on the lid with respect to the container. The direction of the tensile force applied when actually opening a container varies somewhat depending on the user, so depending on the change, the necessary opening force of the container can be determined by applying a tensile force to the opening handle at various angles. It is important to measure the required opening force of a container. However, there is no measuring device that can be used to measure the required opening force of a container, and it is generally possible to measure the required opening force of a container using a commercially available so-called universal testing machine. was being measured.

However, commercially available universal testing machines are significantly more expensive and also require various auxiliary equipment to measure the required opening force by applying opening force at various angles to the container, and Furthermore, the measurement operation was quite complicated. The present invention has been made in view of the above-mentioned facts, and its main purpose is to ``very easily and quickly change the angle of the opening force applied to the container, thereby achieving the required opening force of the container. can be measured.

It is an object of the present invention to provide a relatively simple and inexpensive measuring device.
According to the present invention, there is provided a container support mechanism which is attached to a T base and a T base and which can support a container to be measured at an appropriate angle; a force measuring device connected to the unsealing part of the container to be measured supported by the base, and at least one of the container support mechanism and the measuring device is connected to the base so that the angle with respect to the base can be adjusted appropriately. and at least one of the container support mechanism and the force measuring device is mounted to the base so as to be able to reciprocate in a predetermined direction relative to the other and reciprocate in the predetermined direction. There is provided a measuring device for measuring the required opening force of a container, characterized in that it is drivingly connected to a driving source for forcing the container to open.

In one embodiment of the present invention, the container support mechanism is attached to the base so that the angle with respect to the base can be adjusted as appropriate;
A force measuring device is mounted on the base so as to be able to reciprocate in a predetermined direction, and is drivingly connected to a driving source. Further, at least one of the container support mechanism and the force measuring device is mounted on the base so that the position in the direction perpendicular to the direction of the reciprocating bed can be adjusted as appropriate. In a variant embodiment of the invention, “
The container support mechanism is mounted on the base so as to be freely rotatable about the longitudinal central axis of the supported container.

A locking mechanism is provided to prevent free rotation of the container support mechanism as required. The drive source for reciprocating at least one of the container support mechanism and the force measuring device in a predetermined direction is a variable distance reversible electric motor.
Evening may be preferably used.

BRIEF DESCRIPTION OF THE DRAWINGS Preferred embodiments of the measuring device according to the invention will now be described in more detail with reference to the accompanying drawings, in which: FIG.

To explain with reference to Fig. 2, the illustrated measuring device includes a base 2, a container support mechanism mounted on the base 2 and indicated by a numbered turtle, and a force measuring device mounted on the base 2. It is equipped with a container 6.

The container support mechanism tortoise has a T support stand 8 and a container clamping part 10.

One end of the support base 8 (the left end in FIG. 1) is attached to the base 2.
The rotating shaft 1 is rotatably attached to the block 2 which is fixed to the block 2 via the pivot shaft 1. The other end of the support base 8 (the right end in FIG. 1) supports a short shaft 18 (only one of which is shown in the figure) fixed to both sides of the support base 8, and a pair of receivers fixed to the base 2. It is attached to the receiving plate 18 by inserting it into an arcuate slot 20 formed with the plate hook 8' and screwing a set screw 22 onto the short shaft 16. The slot 20 formed in the receiving plate 181 is a circular arc centered on the pivot axis of one end of the support base 8, that is, the center axis of the pivot shaft 14. Therefore, loosen the set screw 22 and remove the other end of the support base 8. The angle Q of the support stand 8 with respect to the base 2 can be arbitrarily adjusted by moving the support stand 8 as appropriate along the cut 28 and turning the support stand 8 about the pivot shaft 4. The container fastening section 1 consists of four fasteners 26a and 16b (only three of which are shown in FIG. 1) having a suitable elastic body 24 such as natural or synthetic rubber around the periphery. . In the specific example shown, the two vertical attachments 26a (only one of which is shown in FIG. 1) located on the left side in FIG. The two tightening rods 26b located at are mounted so as to be movable toward and away from the attachment tool 26a along the support base 81, and are drive-coupled to a screw shaft 28 rotatably mounted on the support base 8. "Screw shaft 28
The two fasteners 26b can be brought closer to and separated from the two cotton fittings 26a by gripping the gripping portion 30 of the screwdriver and rotating the screw shaft 28. Therefore, the container 32 for which the necessary opening force is to be measured is placed between the four fasteners 26a and 26b, and then the two rare fasteners 26 are operated by operating the gripping part 30 of the screw shaft 28.
4 by bringing b closer to the two cord attachments 26a.
The container 32 can be securely held between the two fasteners 26a and 26b and thus supported by the container support mechanism 4. To remove the container 32 supported by the container support mechanism 4, the grip portion 30 of the screw shaft 28 is operated to separate the two fasteners 26b from the two cotton fasteners 26a, thus separating the four fasteners. What is necessary is to release the holding of the container 32 by 26a and 26M. The container 32 illustrated in FIG. 1 is an easy-to-open container that can be opened easily by hooking a finger on a pull ring 34 and pulling it in the direction shown by arrow B, as clearly shown in FIG. It is a bottle with a molded lid 36. The easy-to-open lid 36 itself is
For example, the specification and drawings of French Patent No. 2,231,578, Japanese Utility Model Publication No. 51-8634, Samurai Seki Sho 47-16284, Tokkoku Sho 52-41093, and Japanese Patent Publication No. 52-11633. Publication, Special Publication No. 51-26107
Publication No. 53-1712, Publication No. 53-1712, Jikko 47-3
Publication No. 7901 or Hakama Gansho 5 related to the applicant's application
The structure may be as disclosed in the specification and drawings of No. 3-39278. Next, the configuration regarding the force measuring device 6 will be explained.

A drive source 38, preferably a variable distance reversible rotary electric motor, is fixed to the base 2 at a predetermined distance from the container support mechanism 4. A rod 40 is attached to the housing of the drive source 38 so as to be slidable in the direction indicated by arrow A. This rod 401 is formed with a rack 42 that engages with a pinion (not shown) fixed to the rotational output shaft of the drive source 38, and the rod 40 is reciprocated in the direction of arrow A by the drive source 38. It has become so. . As the combination of the drive source 38 and the rod 40 as described above, for example, a linear head manufactured and sold by Oriental Service Co., Ltd. can be suitably used. A vertically extending mounting plate 44 is fixed to one end of the rod 40 (the left end in FIG. 1) by a set screw 41 that is screwed into one end of the rod 40. This honorific board 441 extends in the vertical direction. A substantially L-shaped support plate 48 can be freely adjusted in vertical position with respect to the mounting plate 44 by using this slot 46 by appropriate means such as bolts and nuts. It is installed as follows. The force measuring device 6 is fixed to a substantially horizontally extending portion of the support plate 48. The force measuring device 6 may be of any suitable form known per se, but is capable of measuring both tensile force and compressive force, and the pointer on its dial portion 50 corresponds to the maximum value acting at the time of measurement. Preferably, it is of a form adapted to be maintained in position. An example of such a force measuring device is
One example is the push-pull scale manufactured and sold by Komura Seisakusho Co., Ltd. The illustrated force measuring device 6 has an input end 52 for measuring tensile force and an input end 54 for measuring compressive force, and is supported with the input end 52 facing toward the container support mechanism 4. It is fixed on a plate 48. The input end 52 is provided with a hook 56, and this hook 56 and the tension ring 34 of the lid 36 of the container 32 whose required opening force is to be measured are connected to a wire means 58.
connected by. The wire means 58 has at one end a ring-shaped section which can be hooked onto the hook 56 and at the other end a hook-shaped section which can be hooked onto the tension ring 34, and which has an adjustment means 6, which is known per se. It is preferable that the length be arbitrarily adjusted depending on the river. There is also a rod 4 on the base 2.
A slot 62 is formed extending in the direction of movement of 0;
It is preferable that a pair of detectors 64 and 66 such as an IJ mitt switch be installed in the slot 62 so that the position of the rod 4G in the moving direction can be freely adjusted. These detectors 64 and 66' work together with the actuating piece 7Q fixed to the end of the rod 40 (the right end in the figure) by a set screw 8 to detect the movement of the rod 48 and therefore the movement of the force measuring device 6. Next, an example of a method for measuring the required opening force of the container 32 using the measuring device as described above will be described.

When measuring the required opening force of the container 32, first set the angle Q of the support base flea of the container support mechanism 4 with respect to the base 2 to a predetermined value using the method already explained above, and then tighten the set screw 22. Fix the support base coin by tightening. Next, by operating the gripping part 30 of the screw shaft 28, the bottom of the container 32 for which the required opening force is to be measured is held on the side of the container attachment part of the container support mechanism 4. Furthermore, although it is not absolutely necessary, the vertical fixing position of the support plate base box opposite the mounting plate base W is adjusted to substantially connect the input end 52 of the force measuring device 6 and the lid 36 of the container base 2. Preferably, when the force measuring device 6 is moved to the left in the first figure after maintaining the same height, a substantially horizontal pulling force is applied to the tension ring 34 of the lid 38. Afterwards, the drive source 38 is actuated to move the rod, thereby moving the force measuring device 6 to the right in FIG. 1. In the specific example shown in FIG. When the actuating piece is moved to the position Q
acts on the detector 661, and the appropriate control circuit (
(not shown), the operation of the drive source 38 is automatically stopped. Next, the input end 52 of the force measuring device 8 and the tension ring 3 of the lid 36 of the container 32 are connected by the hook 66 and the wire means 5. After completing the measurement preparation operation, the drive source 3 box is then connected. The rod 40 and therefore the force measuring device 6 are actuated to move to the left in FIG. A pulling force is applied to the pulling force 34', and the lid 36 is opened by this pulling force.The movement of the rod turtle Q to the left in the diagram is caused by the activation of the drive source 38 after the lid 36 is opened. It is stopped by stopping the operation.In the specific example shown in the figure, even if the rod turtle fin is moved to the left to a predetermined position in the turtle figure, the actuating piece 8 acts on the detector 6. The operation of the drive source 38 is automatically stopped by an appropriate control circuit (not shown).
The force required to open the container 32 is indicated by the dial strength of the force measuring device 6. Therefore, by reading this dial increase, the required opening force of the container 32 can be determined. ``Discussion How to change the angle of the tensile force acting on the tension ring 38 with respect to the container 32 ~ Even if the angle Q of the support base 3 of the container support mechanism 4 relative to the holder is changed, Therefore, it is only necessary to change the angle of the container 3 that is supported.

In this case as well, if necessary, the height of the support plate umbrella fin relative to the mounting plate can be adjusted depending on the height of the lid 36 of the container 32 due to the change in the angle Q mentioned above. The case where the container 32 for which the required opening force is to be measured has a lid 36 that is opened by pulling the fins of the tension ring 3 has been described above. It will be obvious that the required opening force can be measured in exactly the same manner for a simple opening type key.

Again, the container whose opening force is to be measured is the tension ring 84.
If the device has a pull tab that is gripped with two fingers (for example, a thumb and index finger) instead of 1, the pull tab is firmly gripped at one end in place of the wire means 58 shown in the wing diagram. By using a wire means with a gripper that can be used, it is possible to measure the required opening force of a container in exactly the same manner as described above.

Furthermore, the measuring device shown in FIG. 1 can also be applied to measuring the required opening force when opening the container using a bottle opener when the container is a bottle capped with an ordinary crown. In such a case, a bottle opener of an appropriate form is engaged with the crown of the bottle supported by the container support mechanism W, and the grip of the bottle opener is connected to a force measuring device via the hook back 8 and the wire means. Just connect it to the back 2. Furthermore, the measuring device shown in Fig. Tomomi can also be used to measure the necessary opening force for containers such as bonito or bottles that can be easily opened by pressing the opening part formed on the lid. Can be applied.

In such a case, the force measuring device 6 is fixed on the support plate 48 with the left and right sides reversed from the state shown in FIG. Make sure to face 4. A suitable extension part is fixed to this input end 54, and the tip of the extension part is brought into contact with the opening part of the container. Thereafter, the rod 40 and therefore the force measuring device 6
is moved in the direction approaching the container support mechanism 4 (that is, to the right in FIG. 1). In this way, a pressing force is applied from the input end 54 of the force measuring device 6 to the opening portion of the container, thereby opening the container. The pressing force required to open the container is shown on the dial 501 of the force measuring device 6, and therefore, by reading this dial 50, the required opening force can be determined. In addition, in the measuring device shown in Fig. 1,
The container 3 supported by the container support mechanism 4 is changed by changing the angle of the support stand 8 of the container support mechanism 4 with respect to the base 2.
By changing the angle of the container 32
Instead of this, the angle of the force measuring device 6 with respect to the base 2 can be changed, or the container support mechanism 4 with respect to the base 2 can be changed. and the force measuring device 6, so that the angle of the force measuring device 6 with respect to the base 2 or the angle of both the container support mechanism 4 and the force measuring device 6 with respect to the base 2 can be changed. At the very least, it is also possible to vary the angle of the force acting on the container 32.

Furthermore, in the measuring device shown in FIG. 1, the height of the force measuring device 6 is adjusted by changing the vertical fixing position of the support plate 48 with respect to the mounting plate 44. The height of the input end 52 or 54 and the opening of the container 32 (in the case shown in FIG. 1, the tension ring 34 of the lid 36) can be made substantially the same; Container support mechanism 4 instead of
The entire height of the container support mechanism 4 can be adjusted freely (the modified example described later with reference to FIG. 32 can be adjusted so that the input end 52 or 54 of the force measuring device 6 and the opening of the container 32 are at substantially the same height.

On the other hand, the height of the container 32 can be adjusted by appropriately changing the position of the container 32 itself held by the container attachment part 10' of the container support mechanism 4. It is not necessarily necessary to make either one of the support mechanisms 4 adjustable in height. Furthermore, in the measuring device shown in FIG. 1, the force measuring device 6 is movably mounted on the base 2 and is reciprocated by a drive source 38, but instead of this, a container support is used. Even if the mechanism 4 or both the force measuring device 6 and the container support mechanism 4 are configured to be movably mounted on the base 2 and to be reciprocated by an appropriate drive source, the same effect can be achieved. I can do it.

By the way, the container whose required opening force is to be measured is "as shown in FIG.
34 in the circumferential direction, that is, in the direction shown by arrow C, and remove the lid 13.
In order to measure the required opening force of the container 132 when the container 132 is a bottle or bonito flakes having an easy-to-open lid 136 that can be opened by tearing the lid 136 along the weakening line 135 in the circumferential direction. As can be easily understood, when the container supported by the container support mechanism and the force measuring device are moved in a direction away from each other to apply a tensile force to the tension tab 34, the lid 136 It is important that the container is rotated as it is torn in the direction.

FIG. 4 shows a modification of the container support mechanism shown in FIG. 3 and modified to allow measurement of the required opening force of the container 132 as described above.

To explain with reference to FIG. 4, the container support mechanism 104 mounted on the base 2 in the same way as the container support mechanism 4 of the measuring device shown in FIG. has. Four vertical columns 105 are fixed to this base 103. sliding plate 1 on four vertical columns 105
07 is attached so as to be slidable in the vertical direction. Base 10
3, a pair of upright brackets 109 are fixed, and a screw shaft 111 extending horizontally is rotatably attached to the pair of upright brackets 109. A rack 113 extending vertically downward is fixed, and this rack 113 is engaged with the screw shaft 111.Therefore, by operating the rotary handle turtle 5 provided at one end of the screw shaft 1, the screw shaft 1 is rotated. 1
11 is configured to move the sliding plate 107 in the vertical direction. A pair of upright brackets 17 are fixed on the sliding plate 107, and a hollow cylindrical shaft support member 1 is attached to the pair of brackets 187.
21 is attached so that the angle can be adjusted appropriately.

That is, a pair of arc-shaped slots 128 are formed in each of the pair of brackets Atsutomi 7, and the pair of short shaft turtles 16 fixed to each of the side bulges of the bag support member 21 are inserted into the slots 128. Insert the blade 281 into the short shaft turtle 16 and tighten the set screw 2 thin
By screwing the two together, a pair of upright brackets, a tortoise hole, and a shaft supporting member tortoise 2 are attached. Axial support material turtle 21
A pair of bearings 23 are provided inside.

A pith 125 fixed to the lower surface of the corresponding support base 8' of the container support mechanism 4 shown in Figure 1 is rotatably supported on the pair of bearings 823. The shaft support member 12 also has a protrusion 127 formed on the ball 125 to prevent the shaft 125 from rotating.
A locking mechanism 29 is provided consisting of a locking screw whose tip can engage the flat surface of the holder. On the support stand i08 are four cord attachments 126a and 126 having an elastic body 124 such as natural or synthetic rubber around the periphery.
A container attachment part 118 composed of b is attached.

2 of the 4 vertical attachments located on the left side in Figure 4
The two fasteners 262 are fixed to the block 131a which is movably mounted on the support stand 108, and the two fastener turtles 26b located on the right side in FIG. It is fixed to a block 131b that is movably attached to IQ8.

On the other hand, even if the screw shaft turtle 28, which has threads 133a and 133b cut in opposite directions on the left and right parts of the support base 108', is rotatably mounted, the screw shaft 128'
The screw 133a on the left side of the block 131a is engaged with a rack (not shown) formed on the lower surface of the block 131a, and the screw 133b on the right side of the screw shaft 128 is engaged with a rack (not shown) formed on the lower surface of the block 131a.
is engaged with a rack (not shown) formed on the underside of the. Therefore, when the gripping turtles 3Q formed at both ends of the screw shaft 128 are operated to rotate the screw shaft tortoise 2 crab, the block turtles 3 tortoise a and tortoise b to Kametomi, and therefore the two stinking turtles 26a and the two vertical odor tatami mats 26b are configured to be simultaneously moved in a direction toward each other or in a direction in which they are separated from each other. The block officers 3 and 8 are arranged by "bringing the two fasteners 126a and two subsequent fittings 260 close to each other so that these fasteners 126a and 8 are connected.
The container 132 is positioned symmetrically with respect to the central axis of the t-axis 125 so that the longitudinal center line of the container 32 coincides with the central axis of the key wing 2S when the container 132 is held between the two.
When measuring the required opening force of the container 132 as shown in FIG. By this, the bottom of the container holder 32 for which the necessary opening force is to be measured is held by the container wadding member 01, and the locking mechanism neck 29 is also operated to release the lock of the two axle chambers of the support stand 18. 08 is the center axis of the shaft member 25,
Therefore, it is important to install the container a32 so that it can freely rotate about the central longitudinal axis of the container a32.

Other operating methods during measurement are substantially the same as those described for the measuring device in Fig. 1. When measuring the container 32 shown in FIG. 3 by supporting it on the container supporting machine corner 04 shown in FIG. 4 and allowing the supporting platform turtle 08 to rotate freely, ) in the direction away from the container support mechanism turtle Q4.
When a tensile force is applied to the tension tab 34 of the lid 36, as the lid 36 is torn along the line of weakness 135, the support vine 08 is automatically rotated, and the container 32 is automatically rotated. Rotated and pulled tab 34 and lid 13
The force measuring device 6 (
(see Figure 1).

For example, by using the container support mechanism iQ4 shown in FIG. 4, it is necessary to open the container 32 shown in FIG. When measuring force, the locking mechanism 129 can be operated to lock the support IQ8 in place so that the support 108 cannot freely rotate.However, the container shown in FIG. When measuring the required opening force of 32, even if the support base 108 is in a state where it can freely rotate, the tension ring against the container 32 when applying a tension force to the tension ring 34 to open the lid 36 of the container 32. Since the tearing direction of 34 is constant and does not change, the support 108 is not rotated during the measurement process, and therefore the required opening force of a container such as container 32 shown in FIG. 2 can be measured. It is not always necessary to operate the L-locking mechanism 129 to lock the support stand 108 in a predetermined position even in the case where the measurement To change the angle of the force applied to the opening part of the container (i.e., the pull tab 134 or the pull ring 134), loosen the setscrew 122 to change the angle of the pivot member 121, and thereby Changing the angle Q of the support turtle 08 with respect to the base 2,
The angle of the container supported by the container support mechanism 104 may be changed.

In addition, in order to make the opening part of the container and the input end of the force measuring device 6 (see FIG. 1) substantially the same height, it is necessary to
11 to rotate the screw shaft 111 and move the sliding slope 107 in the vertical direction, thereby adjusting the height of the container supported by the container support mechanism 104 as appropriate.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the entirety of a specific example of a measuring device according to the present invention. FIG. Fig. 3 is a partial perspective view showing a part of a container having an easy-to-open lid that is opened by pulling a pull tab in the circumferential direction. Fig. 4 shows a modification of the container support mechanism. Slope view. 2...Base "4 and 104... Container support mechanism ~ 6... Force measuring device, 38... Drive source, 129... Centering mechanism. Figure 1 Figure 3 Figure 2 Figure 4

Claims (1)

[Claims] 1. A base, a container support mechanism attached to the base and capable of supporting a container to be measured, and a container support mechanism attached to the base and supported by the container support mechanism. and a force measuring device that can be connected to the opening of the container to be measured, and at least one of the container support mechanism and the force measuring device is mounted on the base so that the angle with respect to the base can be adjusted as appropriate. , and also at least one of the container support mechanism and the force measuring device is mounted on the base so as to be able to reciprocate in a predetermined direction relative to the other, and for causing it to reciprocate in the predetermined direction. A measuring device for measuring the required opening force of a container, characterized in that the device is drivingly connected to a driving source of the container. 2. The container support mechanism is attached to the base so that the angle with respect to the base can be adjusted appropriately, and the force measuring device is attached to the base so as to be able to reciprocate in the predetermined direction, and the drive 2. A measuring device according to claim 1, wherein the measuring device is drivingly connected to a source. 3. The measuring device according to claim 1 or 2, wherein the force measuring device is mounted on the base so that the position in the direction perpendicular to the direction of the reciprocating motion can be adjusted as appropriate. . 4. The measuring device according to claim 1 or 2, wherein the container support mechanism is mounted on the base so that the position in the direction perpendicular to the direction of the reciprocating movement can be adjusted as appropriate. . 5. The measurement according to any one of claims 1 to 4, wherein the container support mechanism is mounted on the base so as to be freely rotatable about the longitudinal central axis of the supported container. Device. 6. The measuring device according to claim 5, further comprising a locking mechanism for preventing the free rotation of the container support mechanism. 7. The measuring device according to any one of claims 1 to 6, wherein the drive source is a variable speed reversible electric motor.