JP4816301B2 - Load recording device and impact recording device including the same - Google Patents

Description

  The present invention relates to a load recording apparatus that records a received load. The present invention also relates to an impact recording apparatus provided with the load recording apparatus. The invention also relates to a transport packaging box provided with a load recording device.

  There are many scenes where the magnitude of a load received by an object is recorded and the recorded load value is desired to be used. For example, when a package is transported, a transporter may accidentally drop the package and give a large impact to the package. If a load based on an impact generated during transportation is recorded, it is possible to determine whether or not the load has been fatally damaged by the impact. The load recording device is also useful when a moving body (such as a vehicle) collides. If the load based on the impact of the collision is recorded, it can be used to investigate the cause of the accident.

  An example of this type of load recording device is disclosed in Patent Document 1. The load recording device of Patent Document 1 includes an acceleration sensor having a piezoelectric effect and a nonvolatile memory. The load recording device of Patent Document 1 converts acceleration generated when an impact is received into electric power using an acceleration sensor, and records the electric power in a nonvolatile memory.

JP 2001-201511 A

In the load recording device of Patent Document 1, an expensive element such as an acceleration sensor having a piezoelectric effect or a nonvolatile memory is used. For this reason, the load recording device disclosed in Patent Document 1 is expensive to manufacture.
An object of the present invention is to provide a load recording apparatus that can be manufactured at low cost.

A load recording device according to one aspect disclosed in the present specification is provided with a substrate, a pressure receiving member, and a first partial ductility provided between the substrate and the pressure receiving member and arranged with a predetermined interval therebetween. A ductile member made of a ductile material having a member and a second partially ductile member; a first contact region electrically connected to the first partially ductile member and exposed to the outside; A second contact region that is electrically connected and exposed to the outside, and the first partial ductility member and the second partial ductility member have electrical conductivity, and the first partial ductile member is applied after the load is applied. The load corresponding to the predetermined interval is determined by judging that the partial ductility member and the second partial ductility member have been plastically deformed and contacted from the electrical conduction / non-conduction state between the first contact region and the second contact region. It is characterized by recording the size of .
The load recording device according to another aspect disclosed in the present specification includes a substrate, a pressure receiving member, and a ductile member made of a ductile material provided between the substrate and the pressure receiving member. Another aspect of the load recording apparatus disclosed in this specification is characterized in that the magnitude of the load received by the pressure receiving member is recorded in the amount of plastic deformation of the ductile member.
The load recording apparatus according to another aspect disclosed in the present specification utilizes a phenomenon in which the ductile member is plastically deformed by a load applied via the pressure receiving member. The amount of plastic deformation of the ductile member is determined according to the load received by the pressure receiving member. The ductile member that has been plastically deformed can substantially maintain its state. Therefore, the size of the maximum load that the pressure receiving member has received in the past is recorded in the ductile member. Various techniques can be employed to record the magnitude of the load. For example, the magnitude of the load received based on the plastic deformation of the ductile member itself may be recorded. Alternatively, the magnitude of the load received based on another physical phenomenon caused by plastic deformation of the ductile member may be recorded. Moreover, the magnitude | size of the largest load received in the past may be recorded as a discontinuous value divided | segmented by the threshold value. In addition, in the load recording apparatus according to another aspect disclosed in the present specification , various methods can be adopted to read the magnitude of the recorded load. For example, the plastic deformation of the ductile member can be read by an electric, optical, magnetic, chemical, mechanical or the like method.
The load recording device disclosed in the present specification records the magnitude of the load received using the phenomenon that the ductile member is plastically deformed by the load applied via the pressure receiving member. The load recording device disclosed in this specification does not require expensive elements. Therefore, the load recording device disclosed in this specification can be manufactured at low cost.

In the load recording apparatus disclosed in this specification, it is preferable that the rigidity of the ductile member is smaller than the rigidity of the substrate and the pressure receiving member.
Thereby, a load concentrates on a ductile member and the amount of plastic deformation of a ductile member increases. The load recording apparatus of this form can record the load received in the past with high sensitivity.

In the load recording apparatus disclosed in this specification, there are a space range in which a ductile member is provided and a range in which the substrate and the pressure receiving member are in contact with each other between the substrate and the pressure receiving member. In a range where the substrate and the pressure receiving member are in contact, it is preferable that the substrate and the pressure receiving member are joined.
When the substrate and the pressure receiving member are bonded, the load in the direction parallel to the bonding surface among the loads applied to the pressure receiving member is suppressed from being transmitted to the ductile member. Therefore, only the load in the direction orthogonal to the joint surface among the loads applied to the pressure receiving member can be transmitted to the ductile member. For this reason, the ductile member can be plastically deformed based on the load in the direction orthogonal to the joint surface without being affected by the load in the direction parallel to the joint surface. By limiting the direction of the load transmitted to the ductile member, the correlation between the amount of plastic deformation of the ductile member and the magnitude of the load can be strengthened. The load recording device can accurately record the magnitude of the load received in the past.

In the load recording apparatus disclosed in this specification, it is preferable that the range in which the substrate and the pressure receiving member are joined is formed around the range of the space in which the ductile member is provided.
According to this form, the range of the space in which the ductile member is provided is closed from the outside by the range in which the substrate and the pressure receiving member are joined. Therefore, the state of the ductile member cannot be tampered from the outside. This form is useful for preventing fraud.

In the load recording apparatus disclosed in the present specification, it is preferable that the ductile member is disposed with a predetermined distance from the reference position. The load recording device disclosed in the present specification is characterized by recording the magnitude of the load according to the predetermined interval by using, as an index, that the ductile member is plastically deformed and reaches the reference position after the load is applied. . Here, the reference position includes both a case where the position does not exist and a case where the reference position indicates a position defined by the presence of the substance.
In the load recording apparatus described above, the predetermined interval left between the ductile member and the reference position before applying the load corresponds to the predetermined load magnitude. If the ductile member plastically deforms and reaches the reference position after the load is applied, it can be determined that a load larger than the predetermined load has been applied in the past. The maximum load magnitude received in the past is recorded as a non-continuous value delimited by a threshold.

In the load recording apparatus disclosed in the present specification, it is preferable that the ductile member is disposed with a plurality of intervals having different widths between the plurality of reference positions. In the load recording device disclosed in this specification , the duct member is plastically deformed after the load is applied, and the magnitude of the load corresponding to the reference position is recorded using the reference position reached among the plurality of reference positions as an index. It is characterized by.
By preparing a plurality of reference positions, the magnitude of the load received in the past can be recorded more finely.

In the load recording apparatus disclosed in the present specification, it is preferable that the ductile member has a first partial ductility member and a second partial ductility member which are arranged leaving a predetermined interval. In the load recording apparatus of this aspect, the magnitude of the load corresponding to the predetermined interval is recorded using, as an index, the first partial ductility member and the second partial ductility member that are plastically deformed and contacted after the load is applied. It is said.
In the load recording apparatus of this aspect, the first partial ductility member and the second partial ductility member are brought into contact by plastic deformation from both the first partial ductility member and the second partial ductility member. If only one of the first partial ductility member or the second partial ductility member is provided and contacted by only one plastic deformation, the load of the same size is targeted, The space | interval between a 1st partial ductility member and a 2nd partial ductility member can be set widely. In other words, the magnitude of the load per unit distance of the interval between the first partial ductility member and the second partial ductility member is reduced. Therefore, the load recording device of this embodiment can record the magnitude of the load with high sensitivity.

In the load recording apparatus disclosed in this specification, it is preferable that the first partial ductility member and the second partial ductility member have conductivity. The load recording apparatus further includes a first contact region that is electrically connected to the first partially ductile member and exposed to the outside, and is electrically connected to the second partially ductile member and exposed to the outside. Preferably, the second contact region is provided. In this load recording apparatus, it is determined from the electrical conduction / non-conduction state between the first contact region and the second contact region that the first partial ductility member and the second partial ductility member have been plastically deformed and contacted after the load is applied. It is characterized by doing.
The load recording apparatus according to this aspect is a load according to a predetermined interval between the first partial ductility member and the second partial ductility member only by examining the electrical conduction / non-conduction state between the first contact region and the second contact region. It can be determined whether or not a larger load has been applied in the past.

In the load recording apparatus disclosed in the present specification, it is preferable that the ductile member further includes a third partial ductility member and a fourth partial ductility member that are arranged with a predetermined interval therebetween. This load recording apparatus is characterized in that the predetermined interval between the first partial ductility member and the second partial ductility member is different from the predetermined interval between the third partial ductility member and the fourth partial ductility member. .
By preparing a plurality of predetermined intervals, the magnitude of the load received in the past can be recorded more finely.

The load recording device disclosed in the present specification is characterized in that the first partial ductility member also serves as the third partial ductility member. In this load recording apparatus, the width of the predetermined interval between the first partial ductility member and the second partial ductility member and the predetermined interval between the first partial ductility member and the fourth partial ductility member are different.
By combining the first partial ductility member and the third partial ductility member, the third partial ductility member can be reduced. Thereby, an area required for a 3rd partial ductility member can also be reduced. For this reason, this load recording apparatus can be manufactured inexpensively and in a small size.

In the load recording apparatus disclosed in the present specification , the ductile member is formed between the partial ductile members and disposed with a predetermined distance from both the one partial ductile member and the other partial ductile member. It is preferable to further include an intermediate partial ductility member.
This type of load recording device is particularly useful when a plurality of partially ductile members are provided. When a plurality of partially ductile members are provided, the distance between each partially ductile member is made constant, and the substantial distance between each partially ductile member is adjusted by adjusting the shape and position of the intermediate partially ductile member. Can be adjusted. That is, each partial ductility member is made into a common shape, and the substantial interval between the partial ductility members is adjusted by the shape and position of the intermediate partial ductility member. This type of load recording apparatus has a feature that it is easy to manufacture.

In the load recording apparatus disclosed in this specification , a semiconductor substrate is preferably used as the substrate.
This load recording apparatus can be easily manufactured using a semiconductor process. This load recording device can be manufactured inexpensively and in a small size.

In the load recording apparatus disclosed in this specification, it is preferable that a metal material mainly composed of aluminum or copper is used for the ductile member. Hereinafter, a metal material mainly composed of aluminum may be referred to as an aluminum-based material, and a metal material mainly composed of copper may be referred to as a copper-based material. Examples of the aluminum-based material include Al—Si and Al—Si—Cu containing silicon and copper in aluminum.
When the plastic deformation of the ductile member is detected by an electrical method, the conductivity of the aluminum-based material or the copper-based material can be used. When the plastic deformation of the ductile member is detected by an optical method, light reflection of an aluminum-based material or a copper-based material can be used.

The technology disclosed in the present specification can also provide an impact recording apparatus. One impact recording device disclosed in this specification includes the above-described load recording device, a mass fixed to the load recording device, slidably receiving the mass, and both ends in the sliding direction. A container with a closed part is provided.
The composite of the load recording device and the mass moves in the sliding direction in the container by the inertial force due to the received impact. The complex of the load recording device and the mass collides with both ends of the container, and the load corresponding to the collision is recorded by the load recording device. As a result, the impact received from the recorded load value can be converted.

Another impact recording device disclosed in the present specification is provided with a container having both ends closed and fixed inside the container, and is fixed with the pressure receiving member side facing the inside of the container. The load recording device described above and a mass slidably accommodated inside the container.
The mass moves in the sliding direction in the container by the inertial force due to the received impact. The mass collides directly or indirectly with the pressure receiving member of the load recording device fixed to the container, and the load corresponding to the collision is recorded by the load recording device. As a result, the impact received from the recorded load value can be converted.

The technology disclosed in the present specification can also provide a transport packaging box provided with the load recording device. The technology disclosed in this specification can provide an inexpensive shipping packaging box capable of recording a load received in the past by providing a load recording device that can be manufactured at low cost.

  The load recording apparatus of the present invention records the magnitude of the load received using the phenomenon that the ductile member is plastically deformed by the load applied through the pressure receiving member. Since the load recording apparatus of the present invention does not require expensive elements, it can be manufactured at low cost. Furthermore, the load recording apparatus of the present invention can record the magnitude of the load received in the past with no power source.

Preferred forms of the present invention are listed.
(1st form) The ductile member can use the metal material which has aluminum, copper, magnesium, cobalt, nickel, etc. as a main material. In particular, when an electrical method is used when detecting a recorded load, it is preferable to use an aluminum-based material, a copper-based material, a magnesium-based material, or the like. When using an optical technique when detecting the recorded load, it is preferable to use an aluminum-based material, a copper-based material, a magnesium-based material, or the like. When using a magnetic method when detecting the recorded load, it is preferable to use a cobalt-based material, a nickel-based material, or the like.
(Second Embodiment) A semiconductor substrate is used as the substrate. The ductile member and the contact region are electrically connected by an impurity introduction region formed on the surface of the substrate.
(3rd form) Fixed resistance is connected in parallel between the 1st partial ductility member and the 2nd partial ductility member. A connection point between the fixed resistor and the first partial ductility member is electrically connected to the first contact region. A connection point between the fixed resistor and the second partially ductile member is electrically connected to the second contact region. If a 1st partial ductility member and a 2nd partial ductility member contact after a load application, fixed resistance will short-circuit. By using this phenomenon, it is possible to construct a load recording device in which the resistance value measured according to the magnitude of the load received in the past varies.

Embodiments will be described in detail below with reference to the drawings.
(First embodiment)
1 and 2 schematically show perspective views of the load recording apparatus 10. FIG. 3 is a longitudinal sectional view taken along line III-III in FIG. In FIG. 1, the substrate 20 and the pressure receiving member 40 are illustrated in a separated state in order to help understand the structure of the load recording device 10. Actually, as shown in FIGS. 2 and 3, the substrate 20 and the pressure receiving member 40 are not separated.

  The load recording device 10 includes a substrate 20, a pressure receiving member 40, and a ductile member 30 made of a ductile material provided between the substrate 20 and the pressure receiving member 40. The rigidity of the ductile member 30 is smaller than the rigidity of the substrate 20 and the pressure receiving member 40. The ductile member 30 has a flat thin plate shape and is in contact with both the substrate 20 and the pressure receiving member 40. The ductile member 30 is provided in a state of being pressed by the substrate 20 and the pressure receiving member 40. A space 31 in which the ductile member 30 exists is formed between the substrate 20 and the pressure receiving member 40. The space 31 is a closed space formed between the substrate 20 and the pressure receiving member 40. The pressure receiving member 40 is provided on the surface of the substrate 20 so as to cover the entire ductile member 30. The substrate 20 and the pressure receiving member 40 are joined around the space 31. The width of the pressure receiving member 40 is smaller than the width of the substrate 20. Therefore, the side surface of the pressure receiving member 40 does not protrude laterally from the substrate 20.

In FIG. 4, the principal part enlarged view of the load recording apparatus 10 is shown. FIG. 4A shows a stage before a load is applied. FIG. 4B shows a stage after the load is applied.
As shown in FIG. 4, when a load is applied to the ductile member 30 through the pressure receiving member 40, the ductile member 30 is plastically deformed according to the magnitude of the load. The amount of plastic deformation of the ductile member 30 is determined according to the magnitude of the load received by the pressure receiving member 40. The ductile member 30 plastically deformed can maintain that state. Therefore, the ductile member 30 can record the magnitude of the maximum load that the pressure receiving member 40 has received in the past.

The state of the ductile member 30 that has been plastically deformed can be read using various techniques. As will be described later in detail, for example, it can be read using an electrical technique. In addition, the reading can be performed by using optical, magnetic, chemical, mechanical, or the like.
For example, when an optical method is used, a material that reflects light may be employed for the ductile member 30 and a transparent material may be employed for the substrate 20 or the pressure receiving member 40. Laser light is irradiated to the ductile member 30 through the substrate 20 or the pressure receiving member 40, and the reflected light is detected. When the ductile member 30 is plastically deformed and becomes wider, the range in which reflected light is detected becomes wider. Therefore, the magnitude of the load received in the past can be converted from the range in which the reflected light is detected.
Alternatively, a material that does not reflect light may be employed for the ductile member 30, a light reflecting material may be formed on the surface of the substrate 20, and a transparent material may be employed for the pressure receiving member 40. Laser light is irradiated on the surface of the substrate 20 through the pressure receiving member 40, and the reflected light is detected. When the ductile member 30 is plastically deformed, the range in which reflected light is not detected becomes wide. Therefore, the magnitude of the load received in the past can be converted from the range in which the reflected light is not detected.
When a magnetic method is used, a magnetic material may be employed for the ductile member 30 and a non-magnetic material may be employed for the substrate 20 and the pressure receiving member 40. The ductile member 30 may be a magnetic material alone or a material mixed with magnetic particles. When the ductile member 30 is plastically deformed, the magnetic state of the ductile member 30 detected before and after the load is applied changes. The magnitude of the load received from the change in the magnetic state can be converted.

The load recording device 10 records the magnitude of the load received using a phenomenon in which the ductile member 30 is plastically deformed by a load applied via the pressure receiving member 40. The load recording device 10 does not require an expensive element. Therefore, the load recording device 10 can be manufactured at low cost.
Furthermore, the load recording device 10 can record a load received in the past with no power source. Therefore, it is not necessary to provide an electric device for supplying power, and the structure of the apparatus is simplified.
The ductile member 30 is provided in a space 31 closed by the substrate 20 and the pressure receiving member 40. For this reason, it is difficult to separate the ductile member 30 from the outside. Therefore, falsification of the recorded load value can be prevented. The load recording device 10 is also effective for preventing fraud.

FIG. 5 schematically shows a cross-sectional view of an impact recording apparatus 150 including the load recording apparatus 10. The impact recording device 150 is a device for recording a load based on the received impact with the load recording device 10 and recording the received impact.
FIG. 6 shows an example in which the impact recording device 150 is provided in a transport packaging box. FIG. 6 (A) shows a state where the transporter is transporting the transport packaging box. FIG. 6B shows a state where the transporter accidentally dropped the transport packaging box and the transport packaging box has fallen. FIG. 6C shows a state where the shipping packaging box collides with the floor.
As shown in FIG. 6, when transporting a transport packaging box, a transporter may accidentally drop the transport packaging box and give a large impact to the stored luggage. The impact recording device 150 records a load based on an impact generated during transportation. The impact received from the recorded load can be converted. As a result, it can be determined whether or not the load has been fatally damaged by the impact.

  As shown in FIG. 5, the impact recording device 150 is fixed to the above-described load recording device 10, the mass 155 fixed to the substrate 20 of the load recording device 10, and the pressure receiving member 40 of the load recording device 10. Hemisphere 154. The mass 155 provides mass to a complex composed of the load recording device 10, the mass 155, and the hemisphere 154 (hereinafter referred to as a movable complex). The hemisphere 154 is useful for evenly transmitting the force to the pressure receiving member 40. A metal or the like is used for the material of the mass 155, and a material having a large specific gravity is suitable for downsizing. As the material of the hemisphere 154, a ceramic material or a metal is used. The base block 152, the guide 156, and the cap 158 constitute a cylindrical container. The guide 156 has a cylindrical shape and forms a side wall of the container. The base block 152 and the cap 158 are formed on both end surfaces of the guide 156, and constitute the lower surface and the upper surface of the container. The base block 152 is fixed to the guide 156. The cap 158 is detachably provided at one end of the guide 156. As the material of the guide 156, metal or resin is used. The material of the base block 152 is a metal or ceramic material. As the material of the cap 158, resin, metal, ceramic material, or the like is used. The movable complex is accommodated in a container composed of a base block 152, a guide 156 and a cap 158. The movable complex is accommodated in the container so as to be slidable along the arrow direction. An elastic member (for example, a spring) may be provided between the mass 155 and the cap 158 so that the hemisphere 154 is always in contact with the base block 152.

The movable complex moves in the upward direction of the arrow by the inertial force when the shipping packaging box in FIG. 6B is falling. When the transport packaging box in FIG. 6C collides with the floor, the movable complex moves in the container in the downward direction of the arrow due to the inertial force caused by the impact, and collides with the base block 152.
Here, the total mass of the composite is M, and the velocity immediately before the transportation packaging box collides with the floor is v. When the collision time is Δt, the magnitude F of the generated force is expressed by the following equation.
F = Mv / Δt

  A load corresponding to the magnitude F of the force is applied to the ductile member 30 via the base block 152, the hemisphere 154, and the pressure receiving member 40. The load recording device 10 records the magnitude of the received load based on the plastic deformation of the ductile member 30 according to the load. As a result, the impact received from the recorded load value can be converted.

FIG. 7 schematically shows a cross-sectional view of the impact recording device 151. The impact recording device 151 is provided with two load recording devices 10A and 10B. Both ends of the guide 156 are closed by base blocks 152A and 152B. The load recording device 10A records the magnitude of the load when the movable complex collides with the base block 152A. The load recording device 10B records the magnitude of the load when the movable complex collides with the base block 152B.
The impact recording device 151 can record the magnitude of the load corresponding to the impact when the transport packaging box collides with the floor, regardless of whether the transport packaging box falls from the lower surface or the upper surface.

  5 and 7, the recorded load values can be read after disassembling the container and taking out the load recording devices 10, 10A, 10B. Alternatively, as shown in FIGS. 8 and 9, the recorded load value is obtained in advance from the load recording device 10, 10 </ b> A, 10 </ b> B via a bonding wire 61, 63 and a hermetic terminal 65, 66 and a lead 62 extending outside the container, 64 can be provided, and the lead 62, 64 can be used to read out from the container.

FIG. 8A schematically shows a cross-sectional view of the impact recording apparatus 250. FIG. 8B schematically shows a plan view and a cross-sectional view of the load recording apparatus 10 excluding the hemisphere 154. The load recording device 10 is of a type that detects a recorded load value by an electric signal, and details of the configuration will be described in an embodiment described later.
In the impact recording device 250, the load recording device 10 is fixed to the base block 152. In the load recording device 10, the pressure receiving block 40 side is fixed toward the inside of the container. The mass 155 is slidably accommodated inside the container. The mass 154 moves up and down in the container by the inertial force due to the received impact, and collides with the hemisphere 154. The mass 154 transmits an impact force to the pressure receiving block 40 via the hemisphere 154, and a load corresponding to the collision is recorded in the load recording device 10.

The impact recording device 250 includes a first contact terminal 22 and a second contact terminal 28 formed on the surface of the substrate 20. The load recording device 250 includes two hermetic terminals 65 and 66 extending through the base block 152. The lead 62 outside the container is electrically connected to the first contact terminal 22 via the hermetic terminal 65 and the bonding wire 61. The lead 64 outside the container is electrically connected to the second contact terminal 28 via the hermetic terminal 66 and the bonding wire 63.
Although the details will be described later, the recorded load value can be detected from a change in conduction / non-conduction between the first contact terminal 22 and the second contact terminal 28 or a change in resistance value. Therefore, according to the impact recording device 250, the load value recorded in the load recording device 10 can be detected from the change in the conduction / non-conduction state between the lead 62 and the lead 64 or the change in the resistance value. According to the impact recording device 250, the load value recorded in the load recording device 10 can be detected from outside the container without disassembling the container.

FIG. 9 schematically shows a cross-sectional view of the impact recording device 251. The impact recording device 251 is provided with two load recording devices 10A and 10B. Both ends of the guide 156 are closed by base blocks 152A and 152B.
The impact recording device 251 records the magnitude of the load corresponding to the impact when the transport packaging box collides with the floor, regardless of whether the transport packaging box falls from the lower surface or the upper surface. The load value can be detected from outside the container.

(Second embodiment)
FIG. 10 schematically shows a perspective view of the load recording device 110. FIG. 11 shows a longitudinal sectional view taken along line XI-XI in FIG. 10 and a plan view through the pressure receiving member 140. The load recording device 110 can read out the recorded load value by an electrical method.

  The load recording device 110 includes a substrate 120, a pressure receiving member 140, and a ductile member 130 made of a ductile material provided between the substrate 120 and the pressure receiving member 140. A silicon chip is used for the substrate 120. Aluminum is used for the ductile member 130. A glass block is used for the pressure receiving member 140. The ductile member 130 is in contact with both the substrate 120 and the pressure receiving member 140. The ductile member 130 is provided in a state of being pressed by the substrate 120 and the pressure receiving member 140. A space 131 in which the ductile member 130 exists is formed between the substrate 120 and the pressure receiving member 140. The pressure receiving member 140 is provided on the surface of the substrate 120 so as to cover the entire ductile member 130. The substrate 120 and the pressure receiving member 140 are joined around the space 131. The substrate 120 and the pressure receiving member 140 are bonded using anodic bonding.

  The ductile member 130 includes a first partial ductile member 132 and a second partial ductile member 134 that are disposed leaving a predetermined interval W100. The first partial ductility member 132 and the second partial ductility member 134 each have a flat thin plate shape. The first partial ductility member 132 and the second partial ductility member 134 are arranged in parallel. The predetermined interval W100 between the first partial ductility member 132 and the second partial ductility member 134 is maintained constant along one direction.

  A first contact terminal 122 (an example of a first contact region) and a second contact terminal 128 (an example of a second contact region) are formed on the surface of the substrate 120. Aluminum is used for the first contact terminal 122 and the second contact terminal 128. The first contact terminal 122 and the second contact terminal 128 are formed on a portion of the surface of the substrate 120 where the pressure receiving member 140 is not joined. Therefore, the first contact terminal 122 and the second contact terminal 128 are exposed to the outside. The first contact terminal 122 and the second contact terminal 128 may be an impurity introduction region in which impurities are introduced into the surface of the substrate 120 at a high concentration.

The first contact terminal 122 and the first partial ductility member 132 are electrically connected via the first wiring 124. Aluminum is used for the first wiring 124. Note that the first wiring 124 may be an impurity introduction region in which impurities are introduced into the surface of the substrate 120 at a high concentration.
The second contact terminal 128 and the second partial ductile member 134 are electrically connected via the second wiring 126. Aluminum is used for the second wiring 126. Note that the second wiring 126 may be an impurity introduction region in which impurities are introduced into the surface of the substrate 120 at a high concentration.
The ductile member 130, the contact terminals 122 and 128, and the wirings 124 and 126 are all made of aluminum. These are one continuous layer and can be formed simultaneously by patterning aluminum on the surface of the substrate 20. When the contact terminals 122 and 128 and the wirings 124 and 126 are impurity introduction regions, the contact terminals 122 and 128 and the wirings 124 and 126 can be formed simultaneously by the same impurity introduction process.

In FIG. 12, the principal part enlarged view of the load recording device 110 is shown. FIG. 12A shows a stage before a load is applied. FIG. 12B shows a stage after the load is applied.
As shown in FIG. 12B, when a load is applied to the first partial ductility member 132 and the second partial ductility member 134 via the pressure receiving member 140, the first partial ductility member 132 and the second partial ductility member 134 are Plastically deforms according to the magnitude of the load. As a result, when a load greater than a predetermined load is applied, the first partial ductility member 132 and the second partial ductility member 134 are plastically deformed and contacted. In the load recording device 110, after the load is applied, the first partial ductility member 132 and the second partial ductility member 134 are plastically deformed to come into contact with each other to determine whether the first contact terminal 122 and the second contact terminal 128 are electrically connected or not. It can be determined from the conduction state. That is, in the load recording device 110, whether the first partial ductility member 132 and the second partial ductility member 134 are in contact with each other only by examining the electrical conduction / non-conduction state between the first contact terminal 122 and the second contact terminal 128. It can be determined whether or not.

  The first partial ductility member 132 and the second partial ductility member 134 are plastically deformed according to the magnitude of the load. Therefore, when the first partial ductility member 132 and the second partial ductility member 134 come into contact with each other, it can be determined that a load larger than the load corresponding to the predetermined interval W100 has been applied in the past. The load recording device 110 can discontinuously record the magnitude of the load received in the past by using a threshold value corresponding to the predetermined interval W100.

  In particular, in the load recording device 110, the first partial ductility member 132 and the second partial ductility member 134 come into contact with each other by plastic deformation from both the first partial ductility member 132 and the second partial ductility member 134. Compared to the case where only one of the first partial ductility member 132 and the second partial ductility member 134 is provided and contact is made only by plastic deformation of one of the first and second partial ductility members 134, the load of the same magnitude is targeted. For example, the interval between the first partial ductility member 132 and the second partial ductility member 134 can be set wide. In other words, the magnitude of the load per unit distance of the interval between the first partial ductility member 132 and the second partial ductility member 134 is reduced. Therefore, the load recording device 110 can record the magnitude of the load with high sensitivity.

FIG. 13 shows an example of a modification of the ductile member 130. FIG. 13A shows a stage before a load is applied. FIG. 13B shows a stage after the load is applied.
In the ductile member 130 of the modified example, an intermediate partial ductility member 133 is formed between the first partial ductility member 132 and the second partial ductility member 134. Aluminum is used as the material of the intermediate partial ductility member 133 and can be formed in the same process as the first partial ductility member 132 and the second partial ductility member 134. The intermediate partial ductility member 133 is disposed leaving a predetermined distance from both the first partial ductility member 132 and the second partial ductility member 134. The first partial ductility member 132 and the second partial ductility member 134 are electrically connected via the intermediate partial ductility member 133 after a predetermined load is applied.
This form of ductile member 130 is particularly effective when a plurality of partial ductile members as described later are provided. When a plurality of partial ductility members are provided, the distance between the respective partial ductility members is made constant, and the shape and position of the intermediate partial ductility member 133 are adjusted, so that the substantial difference between the partial ductility members can be substantially reduced. Can be adjusted. That is, each partial ductility member is made into a common shape, and the substantial interval between the partial ductility members is adjusted by the shape and position of the intermediate partial ductility member 133. This type of load recording apparatus has a feature that it is easy to manufacture.

FIG. 14 shows an example of a modification of the load recording device 110.
In the load recording device 110, a thin portion 143 and a thick portion 145 are formed in the central region 142 of the pressure receiving member 140. The thick portion 145 is formed corresponding to the range where the ductile member 130 exists. The thin part 143 is formed around the periphery of the thick part 145.
When the thin portion 143 is provided, the load is concentrated on the ductile member 130 via the thick portion 145. For this reason, the amount of plastic deformation of the ductile member 130 increases. As a result, the load recording device 110 can record the load received in the past with high sensitivity.

FIG. 15 shows an example of another modification of the load recording device 110. Note that the longitudinal sectional view of FIG. 15 is not an accurate sectional view. In order to represent the characteristics of the load recording device 110, a non-existing sectional view is drawn.
In the load recording device 110, a groove 125 is formed in the substrate 120. The groove 125 is formed around a range where the ductile member 130 exists.
When the groove 125 is provided, the load is concentrated on the ductile member 130 via the pressure receiving member 140. For this reason, the amount of plastic deformation of the ductile member 130 increases. As a result, the load recording device 110 can record the load received in the past with high sensitivity.

(Third embodiment)
FIG. 16A shows a plan view of the load recording apparatus 200. FIG. 16B shows an equivalent circuit of the load recording device 200. In addition, about the component substantially the same as the load recording apparatus 110 of 2nd Example, the same code | symbol is attached | subjected and the description is abbreviate | omitted.
In the load recording apparatus 200, the first partial ductility member 132 is divided into three parts. Each of the first partial ductility members 232 divided into three faces the second partial ductility member 134 while leaving intervals Wa, Wb, Wc having different widths. The upper first partial ductility member 132a and the second partial ductility member 134 face each other leaving an interval Wa. The intermediate first partial ductility member 132b and the second partial ductility member 134 face each other leaving a gap Wb. The lower first partial ductility member 132c and the second partial ductility member 134 are opposed to each other with a gap Wc. Here, the widths of the intervals Wa, Wb, and Wc have a relationship of Wa <Wb <Wc. That is, it is evaluated that three switches Wa, Wb, Wc having different threshold values of applied load according to the intervals Wa, Wb, Wc are provided between the first partial ductility member 132 and the second partial ductility member 134. it can.

  The first contact terminal 122 and the first wiring 124 are also divided into three corresponding to the first partial ductility member 132 divided into three. The upper first partial ductility member 132a and the upper first contact terminal 122a are electrically connected via the upper first wiring 124a. The intermediate first partial ductility member 132b and the intermediate first contact terminal 122b are electrically connected via the intermediate first wiring 124b. The lower first partial ductility member 132c and the lower first contact terminal 122b are electrically connected via the lower first wiring 124c.

In the load recording apparatus 200, the electrical connection / non-conduction state between the upper first contact terminal 122a and the second contact terminal 128 (that is, the open / close state of the switch Wa), the intermediate first contact terminal 122b, and the second contact terminal 128. Electrical conduction / non-conduction state (ie, open / close state of switch Wb), electrical conduction / non-conduction state of lower first contact terminal 122c and second contact terminal 128 (ie, open / close state of switch Wc) ) To detect the magnitude of the load received in the past.
When the magnitude of the load received in the past is smaller than the magnitude corresponding to the interval Wa, all the switches Wa, Wb, Wc remain open. Therefore, if all the switches Wa, Wb, Wc remain open, it is determined that the magnitude of the load received in the past is smaller than the magnitude corresponding to the interval Wa.
When the magnitude of the load received in the past is larger than the magnitude corresponding to the interval Wa and smaller than the magnitude corresponding to the interval Wb, the switch Wa is closed and the switch Wb and the switch Wc remain open. Therefore, if only the switch Wa is closed, it is determined that the load received in the past is larger than the size corresponding to the interval Wa and smaller than the size corresponding to the interval Wb.
When the magnitude of the load received in the past is larger than the magnitude corresponding to the interval Wb and smaller than the magnitude corresponding to the interval Wc, the switch Wa and the switch Wb are closed and the switch Wc remains open. Therefore, if only the switch Wa and the switch Wb are closed, it is determined that the magnitude of the load received in the past is larger than the magnitude corresponding to the interval Wb and smaller than the magnitude corresponding to the interval Wc.
When the magnitude of the load received in the past is larger than the magnitude corresponding to the interval Wc, all the switches Wa, Wb, Wc are closed. Therefore, if all the switches Wa, Wb, Wc are closed, it is determined that the magnitude of the load received in the past is larger than the magnitude corresponding to the interval Wc.

  The load recording device 200 can record the magnitude of the maximum load received in the past as a non-continuous value divided by a plurality of threshold values. By setting a plurality of threshold values, the magnitude of the load received in the past can be recorded more finely.

(Fourth embodiment)
FIG. 17A shows a plan view of the load recording device 300. FIG. 17B shows an equivalent circuit of the load recording device 300. In addition, about the component substantially the same as the load recording apparatus 110 of 2nd Example, the same code | symbol is attached | subjected and the description is abbreviate | omitted.
In the load recording apparatus 300, the ductile member 330 is divided into four partial ductile members 332a, 332b, 332c, and 332d. The four partial ductility members 332a, 332b, 332c, and 332d have a common shape and are arranged in parallel.
The first partial ductility member 332a and the second partial ductility member 332b are opposed to each other with a gap Wa. The second partial ductility member 332b and the third partial ductility member 332c face each other with a gap Wb. The third partial ductility member 332c and the fourth partial ductility member 332d are opposed to each other with a gap Wc. Here, the widths of the intervals Wa, Wb, and Wc have a relationship of Wa <Wb <Wc. The ductile member 330 forms a series circuit of three switches Wa, Wb, Wc having different thresholds of applied load according to the intervals Wa, Wb, Wc by using the four partial ductile members 332a, 332b, 332c, 332d. is doing.

As shown in FIG. 17B, a first resistance region 335Ra is formed between the first partial ductility member 332a and the second partial ductility member 332b. A second resistance region 335Rb is formed between the second partial ductility member 332b and the third partial ductility member 332c. A third resistance region 335Rc is formed between the third partial ductility member 332c and the fourth partial ductility member 332d.
The first partial ductility member 332a is electrically connected between the second wiring 126 and the first resistance region 335Ra via the first connection wiring 333a. The second partial ductility member 332b is electrically connected between the first resistance region 333Ra and the second resistance region 335Rb via the second connection wiring 333b. The third partial ductility member 332c is electrically connected between the second resistance region 333Rb and the third resistance region 335Rc via the third connection wiring 333c. The fourth partial ductility member 332d is electrically connected between the third resistance region 333Rc and the first wiring 124 via the fourth connection wiring 333d.
Each of the resistance regions 335Ra, 335Rb, and 335Rc is an impurity introduction region in which impurities are introduced into the surface of the substrate 120. Aluminum is used for each of the connection wirings 333a, 333b, 333c, and 333d. Each of the connection wirings 333a, 333b, 333c, and 333d can be formed simultaneously in the same process as the ductile member 330 and the like.

In the load recording device 300, the magnitude of the load received in the past can be detected from the magnitude of the resistance value between the first contact terminal 122 and the second contact terminal 128.
When the magnitude of the load received in the past is smaller than the magnitude corresponding to the interval Wa, all the switches Wa, Wb, Wc remain open. Therefore, the resistance value between the first contact terminal 122 and the second contact terminal 128 is a series resistance of the first resistance region 335Ra, the second resistance region 335Rb, and the third resistance region 335Rc. If the measured resistance value is substantially equal to the series resistance of the first resistance region 335Ra, the second resistance region 335Rb, and the third resistance region 335Rc, it is determined that the load received in the past is smaller than the magnitude corresponding to the interval Wa. Is done.
When the magnitude of the load received in the past is larger than the magnitude corresponding to the interval Wa and smaller than the magnitude corresponding to the interval Wb, the switch Wa is closed and the switch Wb and the switch Wc remain open. When the switch Wa is closed, the first resistance region 335Ra is short-circuited. Therefore, the resistance value between the first contact terminal 122 and the second contact terminal 128 is the series resistance of the second resistance region 335Rb and the third resistance region 335Rc. If the measured resistance value is substantially equal to the series resistance of the second resistance region 335Rb and the third resistance region 335Rc, the load received in the past is larger than the size corresponding to the interval Wa and larger than the size corresponding to the interval Wb. Is also judged to be small.
When the magnitude of the load received in the past is larger than the magnitude corresponding to the interval Wb and smaller than the magnitude corresponding to the interval Wc, the switch Wa and the switch Wb are closed and the switch Wc remains open. When the switch Wa and the switch Wb are closed, the first resistance region 335Ra and the second resistance region 335Rb are short-circuited. Therefore, the resistance value between the first contact terminal 122 and the second contact terminal 128 is the resistance value of the third resistance region 335Rc. If the measured resistance value is substantially equal to the resistance value of the third resistance region 335Rc, it is determined that the load received in the past is larger than the size corresponding to the interval Wb and smaller than the size corresponding to the interval Wc. .
When the load received in the past is larger than the magnitude according to the interval Wc, all the switches Wa, Wb, Wc are closed. When all the switches Wa, Wb, Wc are closed, all the resistance regions 335Ra, 335Rb, 335Rc are short-circuited. Therefore, the resistance value between the first contact terminal 122 and the second contact terminal 128 is a resistance value parasitic on each wiring. If the measured resistance value is substantially equal to the parasitic resistance value of each wiring, it is determined that the load received in the past is larger than the magnitude corresponding to the interval Wc.

In the load recording apparatus 300, the first wiring 124, the second wiring 126, and the connection wirings 333a, 333b, 333c, and 333d may be impurity introduction regions in which impurities are introduced into the surface of the substrate 120 at a high concentration. . In this case, the wirings and the resistance regions 335Ra, 335Rb, and 335Rc can be separately formed by adjusting the concentration of the introduced impurity.
If the first wiring 124, the second wiring 126, and the connection wirings 333a, 333b, 333c, and 333d are impurity introduction regions, they are not plastically deformed by an applied load. Therefore, the parasitic resistance of those wirings does not fluctuate. As a result, the applied load can be recorded accurately.

(5th Example)
FIG. 18A shows a plan view of the load recording device 400. FIG. 18B shows an equivalent circuit of the load recording device 400.
In the load recording device 400, the ductile member 430 is divided into four partial ductile members 432a, 432b, 432c, and 432d. The four partial ductile members 432a, 432b, 432c, and 432d have a common shape. The second partial ductility member 432b, the third partial ductility member 432c, and the fourth partial ductility member 432d are disposed around the first partial ductility member 432a. The first partial ductility member 432a and the second partial ductility member 432b face each other leaving an interval Wa. The first partial ductility member 432a and the third partial ductility member 432c face each other with a gap Wb. The first partial ductility member 432a and the fourth partial ductility member 432d are opposed to each other with a gap Wc. Here, the widths of the intervals Wa, Wb, and Wc have a relationship of Wa <Wb <Wc. The ductile member 430 uses three partial ductile members 432a, 432b, 432c, and 432d to form three switches Wa, Wb, and Wc having different applied load thresholds according to the intervals Wa, Wb, and Wc. .

A first resistance region 435Ra is formed between the second partial ductility member 432b and the third partial ductility member 432c. A second resistance region 435Rb is formed between the third partial ductility member 432c and the fourth partial ductility member 432d.
The first partial ductility member 432 a and the second contact terminal 128 are electrically connected via the second wiring 126. The fourth partial ductile member 432 d and the first contact terminal 122 are electrically connected via the first wiring 124.
Each of the resistance regions 435Ra and 435Rb is an impurity introduction region in which impurities are introduced into the surface of the substrate 120 at a low concentration.

In the load recording device 400, the magnitude of the load received in the past can be detected from the combination of the electrical conduction / non-conduction state between the first contact terminal 122 and the second contact terminal 128 and the magnitude of the resistance value. it can.
When the magnitude of the load received in the past is smaller than the magnitude corresponding to the interval Wa, all the switches Wa, Wb, Wc remain open. Therefore, if the first contact terminal 122 and the second contact terminal 128 are not electrically connected, it is determined that the load received in the past is smaller than the magnitude corresponding to the interval Wa.
When the magnitude of the load received in the past is larger than the magnitude corresponding to the interval Wa and smaller than the magnitude corresponding to the interval Wb, the switch Wa is closed and the switch Wb and the switch Wc remain open. Therefore, the resistance value between the first contact terminal 122 and the second contact terminal 128 is a series resistance of the first resistance region 435Ra and the second resistance region 435Rb. If the measured resistance value is substantially equal to the series resistance of the first resistance region 435Ra and the second resistance region 435Rb, the load received in the past is larger than the size corresponding to the interval Wa and larger than the size corresponding to the interval Wb. Is also judged to be small.
When the magnitude of the load received in the past is larger than the magnitude corresponding to the interval Wb and smaller than the magnitude corresponding to the interval Wc, the switch Wa and the switch Wb are closed and the switch Wc remains open. Therefore, the resistance value between the first contact terminal 122 and the second contact terminal 128 is the resistance value of the second resistance region 435Rb. If the measured resistance value is substantially equal to the resistance value of the second resistance region 435Rb, it is determined that the load received in the past is larger than the size corresponding to the interval Wb and smaller than the size corresponding to the interval Wc. .
When the magnitude of the load received in the past is larger than the magnitude corresponding to the interval Wc, all the switches Wa, Wb, Wc are closed. Therefore, the resistance value between the first contact terminal 122 and the second contact terminal 128 is a resistance value parasitic on each wiring. If the measured resistance value is substantially equal to the parasitic resistance value of each wiring, it is determined that the load received in the past is larger than the magnitude corresponding to the interval Wc.

In the load recording apparatus 400, the first wiring 124 and the second wiring 126 may be impurity introduction regions in which impurities are introduced into the surface of the substrate 120 at a high concentration. These wirings and the respective resistance regions 435Ra and 435Rb can be formed separately by adjusting the concentration of impurities to be introduced.
If the first wiring 124 and the second wiring 126 are impurity introduction regions, they will not be plastically deformed by the applied load. Therefore, the parasitic resistance of those wirings does not fluctuate. As a result, the applied load can be recorded accurately.

(Sixth embodiment)
FIG. 19A shows a plan view of the load recording device 500. FIG. 19B shows an equivalent circuit of the load recording device 500. FIG. 20 is a longitudinal sectional view taken along line XX-XX in FIG. FIG. 21 is a longitudinal sectional view taken along line XXI-XXI in FIG. FIG. 22 is a longitudinal sectional view taken along line XXII-XXII in FIG.
In the load recording apparatus 500, a trench 525 is formed on the surface of the substrate 120, and an embedded ductile member 530 is embedded in the trench 525. The buried ductile member 530 does not completely fill the trench 525, and a space is left in a part of the trench 525. The height of the buried ductile member 530 is higher than the height of the trench 525, and a part of the buried ductile member 530 protrudes from the surface of the substrate 120.

A first side wall region 524 a is formed on one side wall of the trench 525. A second sidewall region 526 a is formed on the other sidewall of the trench 525. The first sidewall region 524a and the second sidewall region 526a are impurity introduction regions in which impurities are introduced into the surface of the substrate 120 at a high concentration. The first sidewall region 524a and the first contact terminal 122 are electrically connected via the first wiring region 124A and the first contact connection region 122a. The first wiring region 124A and the first contact connection region 122a are impurity introduction regions in which impurities are introduced into the surface of the substrate 120 at a high concentration. The first contact connection region 122a is formed so as to be opposed to the back surface of the first contact terminal 122, and the contact resistance between the first wiring region 124A and the first contact terminal 122 is reduced. The second side wall region 526a and the second contact terminal 128 are electrically connected to the second wiring region 126A via the second contact connection region 128a. The second wiring region 126A and the second contact connection region 128a are impurity introduction regions in which impurities are introduced into the surface of the substrate 120 at a high concentration. The second contact connection region 128a is formed wide so as to face the back surface of the second contact terminal 128, and the contact resistance between the second wiring region 126A and the second contact terminal 128 is reduced.
Note that the first sidewall region 524a, the second sidewall region 526a, the first wiring region 124A, the second wiring region 126A, the first contact connection region 122a, and the second contact connection region 128a are simultaneously formed by the same impurity introduction step. be able to.

In FIG. 23, the principal part enlarged view of the load recording apparatus 500 is shown. FIG. 23A shows a stage before a load is applied. FIG. 23B shows a stage after the load is applied.
When a load is applied, the buried ductile member 530 is plastically deformed along the space in the trench 525. This increases both the contact area between the buried ductile member 530 and the first sidewall region 524a and the contact area between the buried ductile member 530 and the second sidewall region 526a. As a result, the resistance value between the first contact terminal 122 and the second contact terminal 124 decreases as the contact area increases. Therefore, the magnitude of the load received in the past can be converted from the magnitude of the resistance value between the first contact terminal 122 and the second contact terminal 124.

Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.
The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology exemplified in this specification or the drawings can achieve a plurality of objects at the same time, and has technical usefulness by achieving one of the objects.

A perspective view of a load recorder of the 1st example is typically shown. A perspective view of a load recorder of the 1st example is typically shown. The longitudinal cross-sectional view of the load recording apparatus of 1st Example is shown typically. (A) The state of a ductile member before a load is applied is shown. (B) The state of the ductile member after the load is applied. A sectional view of an impact recording device is typically shown. (A) The state where the transporter is transporting the transport packaging box is shown. (B) The state where the transport packaging box is falling is shown. (C) The state where the transport packaging box has fallen to the ground is shown. FIG. 2 shows a cross-sectional view of an impact recording apparatus capable of measuring a biaxial impact. (A) A cross-sectional view of an impact recording apparatus having a lead is schematically shown. (B) A plan view and a cross-sectional view of a load recording device of an impact recording device having a lead are schematically shown. FIG. 2 is a cross-sectional view of an impact recording apparatus having a lead and capable of measuring a biaxial impact. The perspective view of the load recording device of 2nd Example is shown. The longitudinal cross-sectional view and top view of the load recording device of 2nd Example are shown. (A) The state of a ductile member before a load is applied is shown. (B) The state of the ductile member after the load is applied. (A) The state of the ductile member of the modification before a load is applied is shown. (B) The state of the ductile member of the modification after a load is applied is shown. An example of the load recording device of a modification is shown. The other example of the load recording device of a modification is shown. (A) The top view of the load recording device of 2nd Example is shown typically. (B) An equivalent circuit of the load recording apparatus of the second embodiment is shown. (A) The top view of the load recording device of 3rd Example is typically shown. (B) An equivalent circuit of the load recording apparatus of the third embodiment is shown. (A) The top view of the load recording device of 4th Example is typically shown. (B) An equivalent circuit of the load recording apparatus of the fourth embodiment is shown. (A) The top view of the load recording device of 5th Example is typically shown. (B) An equivalent circuit of the load recording apparatus of the fifth embodiment is shown. The longitudinal cross-sectional view of the XX-XX line of FIG. 19 is shown. The longitudinal cross-sectional view of the XXI-XXI line | wire of FIG. 19 is shown. The longitudinal cross-sectional view of the XXII-XXII line | wire of FIG. 19 is shown. (A) The state of a ductile member before a load is applied is shown. (B) The state of the ductile member after the load is applied.

Explanation of symbols

20: substrate 30: ductile member 31, 131: space 40, 140: pressure receiving member 122: first contact terminal 124: first wiring 126: second wiring 128: second contact terminal 132: first partial ductility member 133: intermediate Partial ductile member 134: Second partial ductile member 152: Base block 154: Hemisphere 155: Mass 156: Guide 158: Cap

Claims (9)

A device for recording the received load,
A substrate,
A pressure receiving member;
A ductile member made of a ductile material having a first partial ductility member and a second partial ductility member which are provided between the substrate and the pressure receiving member and are arranged leaving a predetermined interval ;
A first contact region electrically connected to the first partially ductile member and exposed to the outside;
A second contact region electrically connected to the second partially ductile member and exposed to the outside ,
The first partial ductility member and the second partial ductility member have conductivity,
The predetermined partial ductility member and the second partial ductility member are plastically deformed and contacted after the load is applied, based on the electrical conduction / non-conduction state between the first contact region and the second contact region, thereby determining the predetermined value. A load recording apparatus that records the magnitude of a load according to an interval . The ductility member further includes a third partial ductility member and a fourth partial ductility member which are arranged leaving a predetermined interval,
The load according to claim 1 , wherein the predetermined distance between the first partial ductility member and the second partial ductility member and the predetermined distance between the third partial ductility member and the fourth partial ductility member are different in width. Recording device. The load recording apparatus according to claim 2 , wherein the first partial ductility member also serves as the third partial ductility member. The ductility member further includes an intermediate partial ductility member formed between the partial ductility members and disposed with a predetermined distance from both one partial ductility member and the other partial ductility member. The load recording device according to any one of claims 1 to 3 . The load recording apparatus according to claim 1 , wherein a semiconductor substrate is used as the substrate. 6. The load recording apparatus according to claim 1 , wherein the ductile member is made of a metal material mainly composed of aluminum or copper. A load recording device according to any one of claims 1 to 6 ;
A mass fixed to the load recording device;
An impact recording apparatus comprising a container that slidably accommodates the mass and closed at both ends in the sliding direction. A container with closed ends;
The load recording device according to any one of claims 1 to 6 , wherein the load recording device is fixed inside the container and is fixed with the pressure receiving member side facing the inside of the container.
An impact recording device comprising a mass slidably housed inside the container. A transport packaging box provided with the load recording device according to claim 1 .

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