jig

Abstract

This invention provides a jig that can improve the reliability of shock testing of electronic equipment. [Solution] The jig is a jig for holding an electronic device with respect to an impact testing device for performing impact tests on the electronic device, and comprises a base plate fixed to the impact testing device, having a contact surface against which the first side surface of the electronic device abuts; a first side wall member that stands upright on the base plate; a second side wall member that stands upright on the base plate opposite to the first side wall member and is supported so as to be movable relative to the base plate, thereby forming a width-adjustable gap between itself and the first side wall member for holding the electronic device in an inverted state; and a pressing member that is provided so as to cross over the electronic device held in the gap and presses against the second side surface of the electronic device opposite to the first side surface.

Description

[Technical Field]

[0001] The present invention relates to a jig for holding an electronic device with respect to an impact testing apparatus. [Background Art]

[0002] For example, electronic devices such as notebook PCs or tablet terminals are expected to be subjected to impacts during transportation or use. Therefore, this type of electronic device needs to be verified through an impact test to ensure predetermined reliability. For example, Patent Document 1 discloses a drop test apparatus for portable electronic devices. This apparatus allows an electronic device held on a drop arm to freely fall along two inverted shafts and collide with an impact table. [Prior Art Documents] [Patent Documents]

[0003] [Patent Document 1] Re-Publication No. 2009 / 145012 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] In impact tests for electronic devices, there is also a test in which an impact is applied perpendicularly to the side surface of a narrow-width electronic device. This test assumes, for example, an impact when the electronic device is stored in a bag and carried, or a vertical drop onto a floor surface or the like when the electronic device falls.

[0005] Patent Document 1 discloses a configuration in which a drop arm is equipped with a posture-holding device for holding an electronic device with a thin housing in an inverted position. However, in this configuration, the narrow side (bottom surface) and surrounding area of ​​the inverted electronic device are simply held down by an L-shaped plate. As a result, the inverted position of the electronic device is unstable in this configuration, reducing the quality and reliability of the test. Furthermore, in this configuration, when the drop arm falls, the electronic device may be left behind due to inertia. In that case, the electronic device will simply free-fall away from the drop arm, further reducing the quality and reliability of the test. Moreover, in this configuration, the operator's skill level may affect the placement and posture of the electronic device relative to the L-shaped plate, making it even more difficult to conduct stable and reliable tests.

[0006] This invention has been made in consideration of the problems of the prior art described above, and aims to provide a jig that can improve the reliability of shock tests for electronic devices. [Means for solving the problem]

[0007] A jig according to one aspect of the present invention is a jig for holding an electronic device in an impact testing apparatus for performing impact tests on the electronic device, and comprises: a base plate fixed to the impact testing apparatus and having a contact surface against which a first side surface of the electronic device abuts; a first side wall member standing upright on the base plate; a second side wall member standing upright on the base plate opposite to the first side wall member and supported so as to be movable relative to the base plate, thereby forming a width-adjustable gap between itself and the first side wall member for holding the electronic device in an inverted state; and a pressing member provided so as to cross over the electronic device held in the gap and pressing down on the second side surface of the electronic device opposite to the first side surface. [Effects of the Invention]

[0008] According to the above-described embodiment of the present invention, the reliability of shock tests on electronic devices can be improved. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a schematic front view showing an electronic device set in an impact testing apparatus using a jig according to one embodiment. [Figure 2] Figure 2 is a perspective view of the jig. [Figure 3] Figure 3 is a perspective view of the jig, seen from the opposite side compared to Figure 2. [Figure 4] Figure 4 is a side view of the jig. [Figure 5] Figure 5 is a perspective view of the retaining member. [Figure 6] Figure 6 is a schematic plan cross-sectional view showing an enlarged view of the retaining member and its surrounding area. [Figure 7A] Figure 7A is a schematic side view showing the state immediately before the jig holds the electronic device. [Figure 7B] Figure 7B is a schematic side view showing the electronic device being held by the jig shown in Figure 7A. [Figure 8A] Figure 8A is a schematic plan view showing the state immediately before the jig holds the electronic device. [Figure 8B] Figure 8B is a schematic plan view showing the electronic device shown in Figure 8A held in a jig. [Figure 9] Figure 9 is a schematic plan view showing the electronic device being held by the jig according to the modified example. [Modes for carrying out the invention]

[0010] Hereinafter, preferred embodiments of the jig according to the present invention will be described in detail with reference to the attached drawings.

[0011] Figure 1 is a schematic front view of the electronic device 12 set in the impact testing apparatus 14 using a jig 10 according to one embodiment. Figure 2 is a perspective view of the jig 10. Figure 3 is a perspective view of the jig 10 viewed from the opposite side to Figure 2. Figure 4 is a side view of the jig 10. The electronic device 12 has a dot pattern in Figure 1, and the same applies to Figures 7A to 79.

[0012] The electronic device 12 to be held by the jig 10 is, for example, a portable information device having a thin housing. Examples of the electronic device 12 include a notebook PC, a tablet terminal, a smartphone, or a portable game console. In this embodiment, the electronic device 12 is a notebook PC. The electronic device 12, which is a notebook PC, has a clamshell structure in which a first housing 16 and a second housing 17 are connected by a hinge so that they can rotate relative to each other. The first housing 16 is equipped with, for example, a display. The second housing 17 is equipped with, for example, a keyboard, a circuit board, and a storage device. The jig 10 can hold the housings 16 and 17 closed at 0 degrees.

[0013] In the following explanation, for the sake of convenience, the components of the jig 10 and the electronic device 12 held therein will be described as follows: the width direction (surface direction) of the electronic device 12 will be referred to as the X direction, the inverted direction (up and down direction) as the Y direction, and the thickness direction as the Z direction.

[0014] The impact testing device 14 can apply impact perpendicularly to each of the six outer surfaces of the electronic device 12. The impact testing device 14 is used to verify the impact when the electronic device 12 is carried in a bag, for example, or when the electronic device 12 is dropped, and to measure the impact resistance of the electronic device 12. The jig 10 is used when performing impact tests on the four narrow outer surfaces (sides 12a to 12d) of the electronic device 12 along the thickness direction.

[0015] As shown in FIG. 1, the impact testing apparatus 14 includes, for example, a main body 14a, a cylinder 14b, and a pedestal 14c. The main body 14a is a drive mechanism unit mounted with a hydraulic device or an electric device, and is installed on a floor surface or the like of a test site. The cylinder 14b is, for example, a cylindrical member, and stands upward from the upper surface of the main body 14a. The cylinder 14b can move up and down relative to the main body 14a. The cylinder 14b can be drawn downward relative to the main body 14a at a predetermined acceleration, and can apply a predetermined impact force (impact acceleration) to the electronic device 12 fixed to the pedestal 14c. The impact acceleration during the test is, for example, 230 G (3 msec). The pedestal 14c is a fixing base for the jig 10, and is fixed to the upper end of the cylinder 14b. The pedestal 14c moves up and down together with the cylinder 14b. The configuration of the impact testing apparatus 14 is not limited to the above, and any apparatus capable of performing a desired impact test on the electronic device 12 fixed via the jig 10 is acceptable.

[0016] As shown in FIG. 1 and FIG. 4, the jig 10 can be used for impact tests on the four peripheral side surfaces 12a to 12d of the electronic device 12. The electronic device 12 is formed into a flat box shape when the housings 16 and 17 are closed, and has a rectangular shape in plan view. The side surfaces 12a to 12d are narrow outer surfaces along the thickness direction of the housings 16 and 17 closed at 0 degrees. The side surfaces 12a and 12b are long sides. The side surfaces 12c and 12d are short sides. The longitudinal length of the side surfaces 12c and 12d is shorter than that of the side surfaces 12a and 12b.

[0017] The jig 10 can hold the electronic device 12 in an inverted state, that is, in an upright posture with any one of the side surfaces 12a to 12d facing downward. The two-dot chain line in FIG. 4 exemplifies the outline of the electronic device 12 held by the jig 10. The jig 10 uses any one of the side surfaces 12a to 12d as a test surface (impacted surface). The jig 10 can hold the electronic device 12 in either a horizontal posture or a vertical posture. The horizontal posture is a posture with the long side, that is, the side surface 12a or 12b, facing downward. The vertical posture is a posture with the short side, that is, the side surface 12c or 12d, facing downward.

[0018] In the following, as shown in Figure 4, the horizontally oriented electronic device 12 may be referred to as "electronic device 12A," and the vertically oriented electronic device 12 may be referred to as "electronic device 12B." In Figure 4, electronic device 12A has its side 12a facing downwards, but it may also have its side 12b facing downwards. Similarly, electronic device 12B has its side 12c facing downwards, but it may also have its side 12d facing downwards.

[0019] As shown in Figures 1 to 4, the jig 10 comprises a base plate 20, two side wall members 22 and 23, and a pressing member 24.

[0020] The base plate 20 is a plate-shaped member that serves as the base for the jig 10. The upper surface of the base plate 20 is a contact surface 20a against which the sides 12a to 12d of the electronic device 12 abut downwards. The base plate 20 is made of, for example, a stainless steel plate with sufficient thickness and has high rigidity. The shape of the base plate 20 is not limited, but for example, it has a hexagonal shape in plan view. Lightweight holes 20b may be formed in various places on the base plate 20 to reduce the weight of the jig 10. Figures 8A and 8B omit the illustration of the weight-reducing holes 20b, etc.

[0021] The base plate 20 is placed on the upper surface 14c1 of the base 14c and fixed in place. The base plate 20 can be detachably fixed to the base 14c at four points on its peripheral edge using bolts 26. The bolts 26 are inserted from above through through holes formed in the base plate 20 in the thickness direction, and the threaded portion is tightened into threaded holes formed in the base 14c.

[0022] The side wall members 22 and 23 are members that hold the electronic device 12 in an inverted position on the contact surface 20a and prevent it from tilting or falling over. The side wall members 22 and 23 hold the electronic device 12 by sandwiching it in the gap G formed between them. The side wall members 22 and 23 can support the surfaces 12e, 12e of the electronic device 12 in an inverted position with their opposing inner surfaces. Surface 12e is a wide surface located on one or the other in the thickness direction of the electronic device 12 when it is closed at 0 degrees. Hereafter, the inner surfaces of the side wall members 22 and 23 may also be referred to as support surfaces 22a and 23a, respectively.

[0023] The side wall members 22 and 23 are upright in the Z direction on the base plate 20. One side wall member 22 is fixed to the base plate 20. The other side wall member 23 is slidable in the Z direction on the contact surface 20a relative to the base plate 20 and can be fixed at any position. As a result, the side wall members 22 and 23 can smoothly hold the electronic device 12 between the support surfaces 22a and 23a. The side wall members 22 and 23 can also smoothly hold multiple types of electronic devices 12 with different thicknesses in the Z direction.

[0024] One side wall member 22 may have a vertical wall 30 and a pair of support brackets 31, 31. The vertical wall 30 and the support brackets 31 are made of, for example, stainless steel plates of sufficient thickness and have high rigidity.

[0025] The vertical wall 30 is a plate that aligns with the XZ direction and stands upright in the Z direction on the base plate 20. The inner surface of the vertical wall 30 becomes a support surface 22a that supports the surface 12e of the electronic device 12. The vertical wall 30 may have a through hole 30a in the center in the X direction. The through hole 30a serves as a guide rail used when adjusting the height position of the retaining member 24. The through hole 30a is, for example, a notch extending downward from the upper end surface of the vertical wall 30. The width of the through hole 30a in the X direction is greater than the outer diameter of the shaft 40, which will be described later. The lower end of the through hole 30a is below the upper surface when the electronic device 12 with the lowest inverted height among those to be held by the jig 10 is inverted. The through hole 30a may be an elongated hole that is closed at the top and bottom, rather than a notch.

[0026] The vertical wall 30 may have a lower wall portion 30b that is wider in the X direction and an upper wall portion 30c that is narrower in the X direction than the lower wall portion 30b. The lower wall portion 30b is suitable for holding a horizontally placed electronic device 12A. The upper wall portion 30c is suitable for holding a vertically placed electronic device 12B. The vertical wall 30 may be formed from a rectangular plate.

[0027] The lower end of the vertical wall 30 is screwed to the upper surface of the base plate 20. However, the vertical wall 30 is thin in the Z direction relative to its height in the Y direction, making it unstable. Each support bracket 31 is a reinforcing member for securely fixing the vertical wall 30 upright on the base plate 20. The support bracket 31 has, for example, a roughly right-angled triangular shape in a front view as shown in Figure 1. The support bracket 31 is, for example, screwed to the base plate 20 at its bottom and to the outer surface 30d of the vertical wall 30 at its vertical surface.

[0028] The other side wall member 23 may have a vertical wall 34, a slide plate 35, and a pair of support brackets 36, 36. The vertical wall 34, slide plate 35, and support brackets 36 are made of, for example, stainless steel plates of sufficient thickness and have high rigidity.

[0029] The vertical wall 34 can have the same shape as the vertical wall 30 described above. Therefore, the vertical wall 34 also has an insertion hole 34a in the center in the X direction. The vertical wall 34 also has a wider lower wall portion 34b and a narrower upper wall portion 34c in the X direction. However, it is not necessary to form the concave portion 30e described later on the vertical wall 34. The support bracket 36 can also have the same shape as the support bracket 31 described above. However, the vertical wall 34 and the support bracket 36 are screw-fixed to the slide plate 35, not to the base plate 20.

[0030] The slide plate 35 is a plate-shaped member for sliding the entire side wall member 23 on the base plate 20 in the Z direction. The slide plate 35 adjusts the width of the gap G between the side wall members 22 and 23 in the Z direction by moving the side wall member 23 on the base plate 20. The slide plate 35 is placed on the base plate 20. The shape of the slide plate 35 is not limited, but for example, it may have a mountain shape in plan view.

[0031] The slide plate 35 may have a pair of guide holes 35a, 35a in the X direction. The guide holes 35a are elongated holes extending in the Z direction and penetrate the slide plate 35 in the thickness direction. The guide pin 38a (see Figure 7A) of the positioning handle 38 is inserted through the guide holes 35a in the Z direction. The tip (lower end) of the guide pin 38a is threaded and can be tightened into a threaded hole 20c (see Figure 8A) formed in the base plate 20. By loosening the positioning handle 38 in the threaded hole 20c, the slide plate 35 can be moved relative to the base plate 20 in the Z direction. By tightening the positioning handle 38 in the threaded hole 20c, the slide plate 35 can be fixed to any position in the Z direction relative to the base plate 20. The slide plate 35 may also have weight-reducing holes 35b formed in it to lighten the jig 10.

[0032] Figure 5 is a perspective view of the retaining member 24. Figure 6 is a schematic plan cross-sectional view of the retaining member 24 and its surrounding area, enlarged.

[0033] As shown in Figures 1 and 7B, the retaining member 24 is a member for pressing down on the upper surface of the electronic device 12 when it is inverted on the contact surface 20a. For example, if side surface 12a is in contact with the contact surface 20a, the retaining member 24 presses down on side surface 12b, which is opposite to side surface 12a. For example, if side surface 12c is in contact with the contact surface 20a, the retaining member 24 presses down on side surface 12d, which is opposite to side surface 12c.

[0034] The retaining member 24 is a component that prevents the electronic device 12 from remaining in its pre-descending position due to inertia when the base 14c is rapidly moved downward during testing with the impact testing device 14. In other words, the retaining member 24 prevents the timing of the descent of the jig 10 and the electronic device 12 from being misaligned, and prevents the electronic device 12 from receiving two impacts, or so-called double strikes, from the contact surface 20a.

[0035] As shown in Figures 2 to 6, the retaining member 24 may have a shaft 40, a handle screw 42, and a pair of auxiliary plates 44 and 45.

[0036] The shaft 40 is the part that contacts and rigidly presses against the sides 12a to 12d of the electronic device 12. The shaft 40 has a rigid rod shape and is made of a metal such as stainless steel. The shaft 40 is provided along the Z direction so as to cross over the electronic device 12. The shaft 40 can be a round rod or a polygonal rod, but a round rod (cylindrical shape) is preferred. With a round rod-shaped shaft 40, the outer surface 40a makes line contact with the sides 12a to 12d. This ensures that even if the shaft 40 rotates around its axis while pressing against the electronic device 12, a stable contact state can always be maintained. In other words, if the shaft 40 is a square rod shape, for example, there is a possibility that it may make uneven contact with the top surface of the electronic device 12 at one corner, resulting in an unstable pressing state. On the other hand, a round rod shape has the advantage of reliably preventing this uneven contact.

[0037] The length of the shaft 40 is preferably longer than the thickness of the electronic device 12 to be held by the jig 10. This allows the shaft 40 to more stably and reliably hold the sides 12a to 12d of the electronic device 12. The diameter of the shaft 40 is not limited. However, it is preferable that the shaft 40 has sufficient rigidity to rigidly hold the electronic device 12. For example, if the electronic device 12 is a typical notebook PC with a display of about 12 to 15 inches, the diameter of the shaft 40 may be about 10 mm to 40 mm. This is because if the shaft 40 is too thin, the rigidity will decrease, and if it is too thick, the gravitational force will increase.

[0038] As shown in Figures 5 and 6, a screw hole 40b is formed at the axial center of the shaft 40. The screw hole 40b is open at the end face 40c on the side wall member 22 side. The threaded portion 42b of the handle screw 42 is tightened into the screw hole 40b.

[0039] The handle screw 42 is an operating part used to adjust the vertical position of the retaining member 24 (shaft 40) and to fix it in any desired position. A general-purpose handle screw can be used for the handle screw 42. That is, the handle screw 42 has a handle portion 42a and a threaded portion 42b. The handle portion 42a is, for example, a molded part made of resin. The handle portion 42a has a polygonal operating handle that is rotated manually and a cylindrical base portion into which the base end of the threaded portion 42b is fitted and fixed. The threaded portion 42b is fixed integrally with the handle portion 42a and protrudes from the end face 42a1 of the base portion toward the shaft 40. The threaded portion 42b can be tightened into the threaded hole 40b of the shaft 40 while it is inserted through the insertion hole 30a.

[0040] In the jig 10 of this embodiment, a handle screw 42 is used to allow for manual operation of the pressing member 24. The handle screw 42 may be replaced with a lever handle type handle screw or a bolt operated with a regular tool.

[0041] The auxiliary plates 44 and 45 are thin metal discs made of, for example, stainless steel or steel. The auxiliary plates 44 and 45 are washer-shaped members that stabilize the fixing of the retaining member 24 to the side wall member 22. Through holes 44a and 45a are formed in the center of the auxiliary plates 44 and 45 through which the threaded portion 42b is inserted (see Figure 6). The auxiliary plates 44 and 45 are arranged side by side between the handle portion 42a and the end faces 42a1 and 40c of the shaft 40, and the threaded portion 42b is inserted through the through holes 44a and 45a.

[0042] The auxiliary plate 44 on the side wall member 22 side abuts against the outer surface 30d of the vertical wall 30 of the side wall member 22 and is positioned to cover a portion of the insertion hole 30a. The auxiliary plate 45 on the side wall member 23 side is positioned on the support surface 22a side of the side wall member 22. As a result, the auxiliary plates 44 and 45 sandwich the vertical wall 30 between them. Depending on the shape or size of the handle screw portion 42 and the shaft 40, one or both of the auxiliary plates 44 and 45 may be omitted.

[0043] A recessed portion 30e is formed on the support surface 22a of the vertical wall 30, extending vertically along the insertion hole 30a (see Figures 3 and 6). The recessed portion 30e is positioned to straddle the insertion hole 30a in the X direction. The auxiliary plate 45 is inserted into the recessed portion 30e, abuts against the bottom surface 30e1 of the recessed portion 30e, and is positioned to cover a portion of the insertion hole 30a. This prevents the auxiliary plate 45 from protruding into the gap G between the side wall members 22 and 23 and interfering with the electronic equipment 12.

[0044] The retaining member 24 can move the shaft 40 up and down along the insertion holes 30a and 34a by loosening the handle screw 42 relative to the shaft 40. When the retaining member 24 is fixed in any vertical position to hold down the electronic device 12, the handle screw 42 is tightened relative to the shaft 40. In this case, the retaining member 24 can be fastened by sandwiching the auxiliary plates 44 and 45 and the side wall member 22 between the end faces 42a1 and 40c. This fixes the retaining member 24 to the side wall member 22 at any height position.

[0045] In this case, the retaining member 24 has a cantilever support structure fixed only to the side wall member 22. The retaining member 24 may also have a double-support structure that can be fixed to the side wall member 23 by providing a structure similar to the handle screw 42 on the side wall member 23. However, the retaining member 24 only needs to prevent a mismatch in the descent timing between the electronic device 12 and the jig 10 due to inertia during the impact test. For this reason, the retaining member 24 does not need to be fixed to the side wall members 22 and 23 with excessive strength. Therefore, the cantilever support structure of the retaining member 24 is preferable to the double-support structure because it is simpler in structure and lighter.

[0046] Next, we will explain one procedure for holding the electronic device 12 using the jig 10.

[0047] Figure 7A is a schematic side view showing the state immediately before the jig 10 holds the electronic device 12. Figure 7B is a schematic side view showing the state in which the jig 10 holds the electronic device 12 as shown in Figure 7A. Figure 8A is a schematic top view showing the state immediately before the jig 10 holds the electronic device 12. Figure 8B is a schematic top view showing the state in which the jig 10 holds the electronic device 12 as shown in Figure 8A. The support brackets 31 and 36 are not shown in Figures 7A and 7B. The positioning handle 38 and the weight-reducing holes 20b and 35b are not shown in Figures 8A and 8B.

[0048] It is preferable to fix the jig 10 to the impact testing device 14 before holding the electronic equipment 12 (see Figure 1). The jig 10 is fixed to the base 14c using each bolt 26 of the base plate 20.

[0049] As shown in Figures 7A and 8A, first, loosen the positioning handle 38 to separate the side wall member 23 from the side wall member 22 to a certain extent. At this time, ensure that the gap G between the support surfaces 22a and 23a is larger than the thickness of the electronic device 12 to be held. However, the gap G should be set to a distance that allows the electronic device 12 to be temporarily held, for example, the width of the gap G in the Z direction should be within twice the thickness of the electronic device 12. This will prevent the electronic device 12 inserted into the gap G from falling over, making the holding operation shown in Figures 7B and 8B smoother. The retaining member 24 should be temporarily fixed at a position higher than the height of the electronic device 12 in the Y direction. The retaining member 24 should be left free to move up and down by loosening the handle screw 42, and the operator may lift the electronic device 12 by hand when inserting it into the gap G.

[0050] In this state, the electronic device 12 is inserted into the gap G. Figures 7A to 8B illustrate the operation of holding the horizontally placed electronic device 12A. The procedure for holding the vertically placed electronic device 12B with the jig 10 is substantially the same. The electronic device 12A is placed on the contact surface 20a of the base plate 20 with, for example, the side surface 12a which will be the test surface facing downwards. At this time, the electronic device 12 is temporarily held between the side wall members 22 and 23. Therefore, the worker can release their hands from the electronic device 12, resulting in high work efficiency.

[0051] As shown in Figures 7B and 8B, the side wall member 23 is slid toward the side wall member 22 to sandwich the electronic device 12 between the support surfaces 22a and 23a, and the positioning handle 38 is fixed. This places the electronic device 12 in a vertical, inverted position. Next, as shown in Figure 7B, the retaining member 24 is moved downward, and the outer peripheral surface 40a of the shaft 40 is brought into contact with the side surface 12b (or 12a), which is the upper surface of the electronic device 12A. Then the handle screw 42 is tightened to fix the retaining member 24 to the side wall member 22.

[0052] As described above, the electronic device 12A is held in place with its lower side surface 12a in contact with the contact surface 20a, its upper side surface 12b held down by the retaining member 24, and its upper surfaces 12e, 12e held by the support surfaces 22a, 23a. This ensures that the electronic device 12 is held in a vertical, inverted position on the jig 10 without any wobbling. The subsequent impact test can be performed by driving the impact test device 14 to move the base 14c downwards with a predetermined gravitational acceleration and then stopping it, thereby applying impact to the side surface 12a of the electronic device 12.

[0053] As described above, the jig 10 of this embodiment is a jig for holding the electronic device 12 against an impact testing device 14 for performing impact tests on the electronic device 12. The jig 10 comprises a base plate 20, a pair of side wall members 22 and 23, and a pressing member 24. The base plate 20 has a contact surface 20a against which any of the sides 12a to 12d of the electronic device 12 abuts, and is fixed to the impact testing device 14. The side wall member (first side wall member) 22 stands upright on the base plate 20. The side wall member (second side wall member) 23 stands upright on the base plate 20 opposite the side wall member 22. The side wall member 23 is supported so as to be movable relative to the base plate 20, thereby forming a width-adjustable gap G between it and the side wall member 22 for holding the electronic device 12 in an inverted state. The retaining member 24 is provided so as to cross over the electronic device 12 held in the gap G, and is a member that presses on the side opposite to the side surfaces 12a to 12d that are in contact with the contact surface 20a.

[0054] In this way, the jig 10 can hold the electronic device 12 in an inverted position between the two side wall members 22 and 23, while pressing down on the top surface of the electronic device 12 with the pressing member 24. That is, the jig 10 can support all four outer surfaces of the electronic device 12, thus stabilizing the inverted position of the electronic device 12. Furthermore, the jig 10 supports the top surface of the electronic device 12, which is opposite to the bottom surface that is the test surface, with the pressing member 24. This prevents the electronic device 12 from being left behind by inertia during the impact test and prevents discrepancies in the timing of their descent. As a result, the jig 10 ensures stable impact test quality and reliable test results. The jig 10 also has a holding structure using a base plate 20, two side wall members 22 and 23, and a pressing member 24. As a result, the jig 10 allows operators with varying levels of skill to obtain stable test results, further improving the reliability of the test.

[0055] Furthermore, the retaining member 24 only needs to have the function of pressing down on the top surface of the electronic device 12. Therefore, the structure of the retaining member 24 can be simplified and its weight can be reduced. For example, the retaining member 24 in the above example configuration has a simple structure consisting only of a shaft 40, a handle screw 42, and auxiliary plates 44 and 45. Therefore, the retaining member 24 can be made significantly lighter than the total weight of the base plate 20 and the side wall members 22 and 23. For example, if the total weight of the jig 10 is 7 kg, the weight of the retaining member 24 can be kept to 500 g or less, for example, to about 270 g. As a result, in the jig 10, only the lightweight retaining member 24 is placed on top of the electronic device 12 held in an inverted position. Therefore, the jig 10 can prevent the retaining member 24 from applying an impact to the electronic device 12 that is different from the impact that should be applied in the test. In other words, the jig 10 can avoid the weight of the retaining member 24 being added to the electronic device 12 during the impact test, which would prevent the test from being performed properly. Furthermore, the light weight of the clamping member 24 prevents the center of gravity of the jig 10 from being shifted vertically between the clamping member 24 and the electronic device 12, resulting in more stable testing.

[0056] The height of the side wall members 22 and 23 is preferably greater than the inverted height of the electronic device 12 to be held (see Figure 4). This allows the jig 10 to hold the electronic device 12 in an inverted position more stably.

[0057] The side wall members 22 and 23 each extend along their upright direction and may have through holes 30a and 34a through which the retaining member 24 is inserted. In this case, it is preferable that the retaining member 24 is adjustable in position along the longitudinal direction (Y direction) of each through hole 30a and 34a, and can be fixed at any position on at least one of the side wall members 22 and 23. That is, the retaining member 24 may be fixed, for example, to one of the side wall members 22 that holds the surface 12e of the electronic device 12. This would cause the retaining member 24 to form a rigid body integrated with the side wall member 22, improving the stability of the test. It also improves the handling of the retaining member 24. Furthermore, since no support members such as pillars are required to support the retaining member 24, the number of parts in the jig 10 can be reduced.

[0058] Thus, the above example illustrates a configuration in which both side wall members 22 and 23 are taller than the height of the electronic device 12 to be held. However, for example, the height of the other side wall member 23 may be lower than the height of the electronic device 12.

[0059] Figure 9 is a schematic plan view showing the electronic device 12 being held by the modified jig 10A.

[0060] In the jig 10A shown in Figure 9, one of the side wall members 22 and 23, side wall member 23, is lower in height than the electronic device 12 to be held. That is, side wall member 22 has the function of supporting the surface 12e of the electronic device 12 and the function of supporting the pressing member 24. On the other hand, side wall member 23 has the function of supporting the surface 12e of the electronic device 12. For this reason, side wall member 23 does not necessarily need to support the entire surface 12e of the electronic device 12 as long as it can prevent the electronic device 12 from tipping over in an inverted position. However, if the height of side wall member 23 is too low, there is a concern that the electronic device 12 may become unstable before the pressing member 24 can press down on it, or that the electronic device 12 may become unstable during impact testing. Therefore, it is preferable that the height of side wall member 23 be, for example, half or more of the height of the electronic device 12 to be held.

[0061] It is preferable that the retaining member 24 is installed on a side wall member 22 fixed to the base plate 20, rather than on a side wall member 23 that is slidable relative to the base plate 20. This makes it less likely for the retaining member 24 to get in the way when sliding the side wall member 23. Also, the weight of the retaining member 24 does not rest on the side wall member 23, making it easier to slide. Of course, it is also possible for the retaining member 24 to be supported only by the side wall member 23.

[0062] In the configuration example shown in Figure 9, the side wall member 22 can also be made lower than the height of the electronic device 12 to be held, similar to the side wall member 23. In this case, the retaining member 24 must be supported not by the side wall member 22, but by another wall member or support member that rises up in the Y direction from the base plate 20.

[0063] It should be noted that the present invention is not limited to the embodiments described above, and can be freely modified without departing from the spirit of the invention.

[0064] Although the above example illustrates a configuration in which only the side wall member 23 is slidably supported relative to the base plate 20, the side wall member 22 may also be slidably supported relative to the base plate 20. [Explanation of symbols]

[0065] 10,10A Jig 12,12A,12B Electronic equipment 12a~12d side 20 base plates 20a Contact surface 22,23 Side wall members 24 Retaining member 30,34 Vertical wall 30a, 34a Through holes 35 Slide Plate 40 shaft

Claims

1. A jig for holding electronic equipment in an impact testing apparatus used for impact testing of electronic equipment, A base plate having a contact surface against which the first side surface of the electronic device is made to contact, and which is fixed to the impact testing device, A first side wall member that stands upright on the base plate, A second side wall member stands upright on the base plate opposite to the first side wall member and is supported so as to be movable relative to the base plate, thereby forming a width-adjustable gap between it and the first side wall member for holding the electronic device in an inverted state, A pressing member is provided so as to cross over the electronic device held in the gap, and presses against the second side of the electronic device opposite to the first side, A jig characterized by having the following features.

2. The jig according to claim 1, The pressing member has a round bar shape. A jig characterized by the following features.

3. A jig according to claim 1 or 2, The height of at least one of the first and second side wall members is greater than the inverted height of the electronic device to be held by the jig. The retaining member can be fixed to the one side wall member at any position in its upright direction. A jig characterized by the following features.

4. The jig according to claim 3, The aforementioned one side wall member is the first side wall member. A jig characterized by the following features.

5. The jig according to claim 4, The first side wall member extends in the upright direction from the base plate and has an insertion hole through which the retaining member is inserted. The retaining member is adjustable in position along the longitudinal direction of the insertion hole and can be fixed to the first side wall member at any position. A jig characterized by the following features.

6. The jig according to claim 3, Of the first and second side wall members, the height of the other side wall member is at least half the inverted height of the electronic device to be held by the jig. A jig characterized by the following features.

7. A jig according to claim 1 or 2, The heights of the first and second side wall members are greater than the inverted height of the electronic device to be held by the jig. A jig characterized by the following features.

8. The jig according to claim 7, The first side wall member and the second side wall member each extend in the upright direction from the base plate and have an insertion hole through which the retaining member is inserted. The retaining member is adjustable in position along the longitudinal direction of the insertion holes in the first and second side wall members, and can be fixed at any position relative to at least one of the first and second side wall members. A jig characterized by the following features.

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