Crotch seam durability tester

Abstract

The invention discloses a crotch seam durability tester, which belongs to a crotch seam durability tester for pants used for walking or running. It comprises a support rod, a box body, a three-gear driver and two imitation leg rods. The three-gear driver comprises a central gear and two driving gears respectively meshed at two ends of a certain diameter of the central gear and rotating in opposite directions. One or two driving rods are fixedly connected to each driving gear. The driving rods on the two driving gears form an angle from the rod box rotation connection point to the top end of the imitation leg rod within the rotation contact range of the driving rods. Two return springs are arranged on the box body below the central gear. Advantages: It can simulate different spans and speeds of human feet walking and running to test the durability of the seam at the crotch of pants, so as to achieve the purpose of testing the quality of pants by human bionic motion, and solve the problem that the current testing of the crotch quality of pants uses a straight line stretch cut into pieces, and the testing parameters are not very practical with the human body.

Description

Technical Field

[0001] The invention belongs to the technical field of textile trousers quality detection, in particular to an instrument for detecting the durability of trouser crotch seams when used for walking or running. Background Art

[0002] Currently, testing the seam strength of textiles requires cutting the garment and applying linear or vertical tension to the seams of the cut specimens using a linear tensile testing machine until the seams fail. The tensile force is then recorded to determine if the seams meet the test requirements. This method fails to fully reflect the destructive effects of clothing on the human body and cannot accurately reflect the quality of textile seams in bionic use. Summary of the Invention

[0003] The invention provides a crotch seam durability tester which dynamically simulates the destructive effect of hip joint movement on the seam at the crotch seam when the human body is walking or running.

[0004] The concept of this invention is to use a central gear to drive two oppositely rotating gears. These gears then drive two artificial leg rods to rotate synchronously within a limited angle. By adjusting the angle and speed, a humanoid walking or running can be simulated. This instrument can be placed on a mannequin and fitted with pants to test the durability of the crotch seam.

[0005] The structure of the present invention is:

[0006] A crotch seam durability tester comprises a support rod (1) and a box body (2), and is characterized in that it also comprises a three-gear drive (3) and two artificial leg rods (4).

[0007] The three-gear driver (3) includes a central gear (5) and two driving gears (6) respectively meshed with two ends of a certain diameter of the central gear (5) and rotating in opposite directions. The central gear (5) and the two driving gears (6) are respectively inside the box body (2) and are respectively connected to the box body (2) for rotation relative to two side walls. Each driving gear (6) is fixedly connected to one or two driving rods (7), and the center point of the driving rod (7) is fixedly connected to the driving gear (6). The driving rods (7) on the two driving gears (6) form an angle, and the multiple angles formed by the driving rods (7) on the two driving gears (6) are equal.

[0008] The two artificial leg rods (4) are rotatably connected to the lower position of the box body (2) at opposite sides of the box body (2), the rotation connection point of the artificial leg rod (4) is the rod box rotation connection point (8), and the section of the rod body from the rod box rotation connection point (8) to the top end of the artificial leg rod (4) is within the rotation contact range of the driving rod (7); two return springs (9) are provided on the box body (2) below the central gear (5), and the two return springs (9) are respectively connected to the positions below the rod box rotation connection point (8) of the two artificial leg rods (4);

[0009] The center of the central gear (5) is rotationally connected to the transmission system of the electric motor (11).

[0010] The durability of the crotch seam should be tested by simulating the degree of opening and speed of the legs when walking and running. The length from the rod box rotation connection point (8) to the upper end of the artificial leg rod (4) determines the size of the rotation angle of the artificial leg rod (4), that is, the degree of opening of the legs. The rotation speed of the two driving gears (6) determines the speed of the simulated walking and running. The return spring (9) allows one driving gear (6) to rotate in only a limited angle in one direction, and can also cause the artificial leg rod (4) driven by it to swing back and forth to simulate long-term walking and running of the human body.

[0011] In order to change the rotation angle of the artificial leg rod (4) and simulate different leg opening angles for walking and running, the artificial leg rod (4) is provided with a plurality of rotation connection holes (10). The plurality of rotation connection holes (10) are at different distances from the top end of the artificial leg rod (4). As a result, the angles at which the artificial leg rod (4) is moved by the driving rod (7) are different, and the rotation angles of the artificial leg rod (4) are different.

[0012] The design of using a driving rod (7): a driving rod (7) is fixedly connected to each of the two driving gears (6), and the angle formed by the driving rods (7) on the two driving gears (6) is 90 degrees. The angle of 90 degrees is used to simulate the alternating forward and backward cycles of the two feet for a long time.

[0013] The design of using two driving rods (7): two driving gears (6) are respectively fixedly connected to two driving rods (7), and the angle formed by the driving rods (7) on the two driving gears (6) is 45 degrees. The angle of 45 degrees is used to simulate the alternating forward and backward movement of the two feet in a short time.

[0014] The advantages of the present invention are: it can simulate the different spans and speeds of human walking and running to test the durability of the seam at the crotch of pants, thereby achieving the purpose of using human bionic motion to detect the quality of pants, and solving the problem that the current crotch quality detection of pants uses cut-to-piece linear stretching, and the detection parameters have little practical reference to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the three-gear drive structure of the present invention;

[0017] Figure 3 The two driving gears rotating in opposite directions of the present invention are both provided with two driving rods that cross each other, and the driving rods on the two driving gears rotating in opposite directions have an angle of 45 degrees.

[0018] In the figure, 1 is the support rod, 2 is the box body, 3 is the three-gear driver, 4 is the artificial leg rod, 5 is the center gear, 6 is the driving gear, 7 is the driving rod, 8 is the rod box rotation connection point, 9 is the return spring, 10 is the rotation connection hole, and 11 is the motor. DETAILED DESCRIPTION

[0019] Example 1: Crotch Seam Durability Tester

[0020] like Figure 1 、 2 ,

[0021] A crotch seam durability tester comprises a support rod (1), a box body (2), a three-gear drive (3) and two artificial leg rods (4).

[0022] The three-gear driver (3) includes a central gear (5) and two driving gears (6) respectively meshed with two ends of a certain diameter of the central gear (5) and rotating in opposite directions. The central gear (5) and the two driving gears (6) are respectively inside the box body (2) and are respectively connected to the box body (2) for rotation relative to two side walls. Each driving gear (6) is fixedly connected to one or two driving rods (7), and the center point of the driving rod (7) is fixedly connected to the driving gear (6). The driving rods (7) on the two driving gears (6) form an angle, and the multiple angles formed by the driving rods (7) on the two driving gears (6) are equal.

[0023] The two artificial leg rods (4) are rotatably connected to the lower position of the box body (2) at opposite sides of the box body (2), the rotation connection point of the artificial leg rod (4) is the rod box rotation connection point (8), and the section of the rod body from the rod box rotation connection point (8) to the top end of the artificial leg rod (4) is within the rotation contact range of the driving rod (7); two return springs (9) are provided on the box body (2) below the central gear (5), and the two return springs (9) are respectively connected to the positions below the rod box rotation connection point (8) of the two artificial leg rods (4);

[0024] The center of the central gear (5) is rotationally connected to the transmission system of the electric motor (11).

[0025] The artificial leg rod (4) is provided with a plurality of rotation connection holes (10).

[0026] Angle design: A driving rod (7) is fixedly connected to each of the two driving gears (6), and each angle formed by the driving rods (7) on the two driving gears (6) is 90 degrees.

[0027] Example 2: Crotch Seam Durability Tester

[0028] like Figure 1 、 2 、3,

[0029] All technical solutions are the same as those in Example 1, except that the angle design is changed to: two driving rods (7) are fixedly connected to the two driving gears (6), and each angle formed by the driving rods (7) on the two driving gears (6) is 45 degrees.

Claims

1. A crotch seam durability tester, comprising a support rod (1) and a box body (2), characterized in that: It also includes a three-gear drive (3) and two artificial leg rods (4). The three-gear drive (3) comprises a central gear (5) and two driving gears (6) respectively meshed at two ends of a certain diameter of the central gear (5) and rotating in opposite directions. The central gear (5) and the two driving gears (6) are respectively inside the box body (2) and are respectively connected to the box body (2) for rotation relative to two side walls. One or two driving rods (7) are fixedly connected to each driving gear (6), and the center point of the driving rod (7) is fixedly connected to the driving gear (6). The driving rods (7) on the two driving gears (6) form an angle, and the multiple angles formed by the driving rods (7) on the two driving gears (6) are equal. The two artificial leg rods (4) are rotatably connected to the lower position of the box body (2) at the opposite sides of the box body (2); the rotation connection point of the artificial leg rod (4) is the rod box rotation connection point (8); the section of the rod body from the rod box rotation connection point (8) to the top end of the artificial leg rod (4) is within the rotation contact range of the driving rod (7); two return springs (9) are provided on the box body (2) below the central gear (5); the two return springs (9) are respectively connected to the positions below the rod box rotation connection point (8) of the two artificial leg rods (4); The center of the central gear (5) is rotationally connected to the transmission system of the motor (11); The artificial leg rod (4) is provided with a plurality of rotation connection holes (10); When a driving rod (7) is fixedly connected to each of the two driving gears (6), each angle formed by the driving rods (7) on the two driving gears (6) is 90 degrees; When two driving rods (7) are fixedly connected to the two driving gears (6), respectively, each angle formed by the driving rods (7) on the two driving gears (6) is 45 degrees.

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