JP3135327B2 - Burst and piercing test jig - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rupture and piercing test jig used for a rupture test and a piercing test on paper, film and the like.

[0002]

2. Description of the Related Art Conventionally, to perform a burst or piercing test,
Remove the lower sample gripper of the constant speed tensile tester, place the sample fixing jig at that position, attach a sample such as paper, film, etc. to the sample fixing jig, and attach the spherical surface to the upper sample gripper of the constant speed tensile tester. A method of attaching a punch or a needle at the tip and piercing the punch or the needle into a sample has been adopted. The sample fixing jig used here was provided with a table-like support for placing in a tensile tester, and was configured to fix a sample fixing ring having a hole of a predetermined diameter on the upper surface thereof. .

[0003]

However, in such a configuration, when performing a burst test or a piercing test, the lower sample gripper of the tensile tester is removed, and a sample fixing jig for the rupture or piercing test is placed at that position. It requires a process of setting the fixture, which is time-consuming (for example, 5 to 7 minutes), and is difficult to handle for a weak person because the sample fixing jig is heavy (for example, 5 to 8 kg). was there.

The present invention has been made in view of such a conventional problem, and provides a burst and piercing test jig which can be easily attached to a tensile tester to perform a burst test or a piercing test. The purpose is to:

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an upper sample scissor plate and a lower sample scissor plate each having a through hole having a predetermined diameter, and the upper sample scissor plate and the lower sample scissor plate. A hinge for connecting the sample scissors so that the sample holes can be opened and closed and closed in a closed state, and a state in which the upper sample scissors and the lower sample scissors arranged on the opposite side to the hinges are closed; A jig for holding the upper sample scissor plate and a non-slip plate provided on opposing surfaces of the lower sample scissor plate, respectively, and a lower sample gripper fixed to the lower surface of the lower sample scissor plate for a tensile tester. A rupture and piercing test jig having a bite portion attachable to a jig is provided.

[0006]

In the rupture and piercing test jig having the above structure, a sample such as paper or film is sandwiched between the upper and lower sample sandwich plates, and the bite portion is bitten by the lower sample gripper of the tensile tester. Thus, the sample exposed from the sample hole can be set at a predetermined position, that is, directly below the punch or needle at the spherical tip attached to the upper sample gripper of the tensile tester. Also, to fix the sample between the upper and lower sample scissors, it is only necessary to sandwich the sample between the upper and lower sample scissors that are opened and closed with a hinge, and fix the opposite side of the hinge with a fixing jig. Extremely simple. Moreover, since the sample is clamped by the non-slip plate, the sample does not come off even when pierced with a punch or a needle, and accurate measurement can be performed.

[0007]

FIG. 1 is a schematic side view of a rupture and piercing test jig according to an embodiment of the present invention, FIG. 2 is a schematic sectional view of the jig viewed from the front, and FIG. 3 is a schematic plan view thereof. Reference numeral 1 denotes the entire jig for rupture and piercing test. 2 is a predetermined diameter (4
4.45 mm) upper sample scissor plate having a penetrated sample hole 2a, 3 is a lower sample scissor plate having a penetrated sample hole 3a of a predetermined diameter, 4 is an upper sample scissor plate 2 and a lower sample scissor plate 3. Hinges that can be opened and closed and connected so that the respective sample holes 2a and 3a overlap in a closed state;
Reference numeral 5 denotes a fixing jig which is arranged on the opposite side of the hinge 4 and holds the upper sample scissor plate 2 and the lower sample scissor plate 3 in a closed state. The fixing jig 5 is not particularly limited, but as shown in an embodiment of the drawing, a base member 6, an operation lever 7 pivotally attached to the base member 6, and an operation lever 7 Is preferably provided with a hook 8 or the like to be hooked on the hook 9 of the upper sample scissor plate 2 because the operation is simple. On the opposing surfaces of the upper sample scissor plate 2 and the lower sample scissor plate 3, a non-slip plate 10 made of a rubber plate or the like is provided.

Reference numeral 11 denotes a bite portion fixed to the lower surface of the lower sample scissor plate 3. The biting portion 11 is formed in a shape attachable to a lower sample gripper 12 of a normal tensile tester (not shown), and the bite portion 11 is attached to the lower sample gripper 12. Sometimes, the upper and lower sample scissors 2, 3 are perpendicular to the central axis XX of the upper sample gripper (not shown) and the lower sample gripper 12 of the tensile tester, and the centers of the sample holes 2a, 3a are Its central axis X-
The attachment position of the biting portion 11 is determined so as to be located on X. The upper and lower sample scissors 2, 3 and the biting portion 11 are usually made of a metal material such as stainless steel or aluminum. In the drawing, reference numeral 13 denotes a needle for piercing a sample attached to an upper sample gripper of the tensile tester.

Next, a method of using the rupture and piercing test jig 1 having the above configuration will be described. When performing a burst test or a piercing test, the upper sample scissor plate 2 and the lower sample scissor plate 3
Then, a sample such as a paper or a film to be tested is sandwiched in between, and an upper sample scissor plate 2 and a lower sample scissor plate 3 are fixed by a fixing jig 5 in a closed state. Thus, the periphery of the sample is fixed while being exposed from the sample holes 2a and 3a. Further, since the non-slip plate 10 is provided on the surface in contact with the sample, the sample is reliably held, and no slip occurs even when a load is applied by piercing the sample with a needle to perform a piercing test. . Next, the rupture and piercing test jig 1
The biting part 11 is attached to the lower sample gripper 1 of the tensile tester.
Attach by biting 2. A needle 13 for piercing is fixed to the upper sample gripper. As a result, the sample attached to the rupture and piercing test jig 1 is set directly below the needle 13. In this state, the needle 13 is lowered to pierce the sample, so that a piercing test can be performed. In addition, a burst test can be performed by using a punch having a spherical tip in place of the needle 13.

The above-mentioned jig 1 for rupture and piercing can be used for a piercing strength test specified in Ministry of Health and Welfare Notification No. 370 or Japanese Agricultural and Forestry Standard No. 82.
It can be used for the burst test specified in ISL1018 or ASTM D-231.

[0011]

As described above, the rupture and piercing test jig of the present invention uses the upper sample scissor plate to which the sample is attached and the lower sample scissor plate by using the bite portion, and the lower portion of the tensile tester is used. Since the method of biting the sample gripper is adopted, it can be easily attached with one touch, the time required for attachment can be extremely short, for example, within 5 seconds, and the weight has been reduced, so anyone can use it. This has the effect that it can be easily handled.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a rupture and piercing test jig according to an embodiment of the present invention.

FIG. 2 is a schematic sectional view of the embodiment as viewed from the front.

FIG. 3 is a schematic plan view of the embodiment.

[Explanation of Signs] 1 Burst and piercing test jig 2 Upper sample scissor plate 2a Sample hole 3 Lower sample scissor plate 3a Sample hole 4 Hinge 5 Fixing jig 10 Non-slip plate 11 Biting portion 12 Lower sample gripper 13 Needle

Continued on the front page (56) References JP-A-2-161335 (JP, A) JP-A-55-106336 (JP, A) JP-A 64-44 (JP, U) JP-A 55-116254 (JP, A) , U) JP 38-21846 (JP, B1) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01N 3/00-3/62 JICST file (JOIS)

Claims (1)

(57) [Claims] 1. An upper sample scissor plate and a lower sample scissor plate each having a through hole having a predetermined diameter, and the upper sample scissor plate and the lower sample scissor plate are respectively openable and closable and each sample is closed. A hinge connected to overlap the holes, a fixing jig arranged on the opposite side to the hinge to hold the upper sample scissor plate and the lower sample scissor plate in a closed state, and the upper sample scissor plate and the lower sample A rupture and piercing test jig having a non-slip plate provided on each of opposing surfaces of the scissor plate and a bite portion fixed to a lower surface of the lower sample scissor plate and attachable to a lower sample gripper of a tensile tester. Utensils.