Inspection jig

Abstract

To provide an inspection jig that allows for easy inspection of whether or not building components meet standard values. [Solution] The inspection jig 1 is an inspection jig used for inspecting building components, and comprises a base portion 10 to which the load F of the building component is applied, and a support portion 20 that supports the base portion 10. When the base portion 10 to which the load F is applied satisfies predetermined conditions, the support portion 20 displaces the base portion 10 to a predetermined movable position.

Description

Technical Field

[0001] The present invention relates to an inspection jig.

Background Art

[0002] Building fittings must comply with various standards established based on the Building Standards Act and the like. For example, for fire prevention equipment such as fire shutters, the installation of a harm prevention device to prevent people from being caught by the closing fire prevention equipment when a fire is detected is obligated by the Building Standards Act (see Patent Document 1). This harm prevention device is required to satisfy standard values defined based on the Building Standards Act and the like, such that the compressive force and kinetic energy applied when the fire shutter is closed are equal to or less than a certain reference value.

Related Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Conventionally, in order to inspect whether a harm prevention device satisfies the reference value, it has been common to use a measuring instrument such as a force gauge that measures the reference value with a numerical value. However, the operation of such a measuring instrument requires technical knowledge and experience, making the operation difficult, and the measurement results are affected by the environment in which the measurement is performed, so the measurement conditions must be strictly controlled. In addition, there is a concern that high-precision measuring instruments are expensive and incur high costs.

[0005] In view of the above points, the present invention aims to provide an inspection jig that can easily perform an inspection of whether a building fitting satisfies a reference value.

Means for Solving the Problems

[0006] The inspection jig according to the present invention is an inspection jig used for inspecting building components, comprising a base portion to which the load of the building component is applied, and a support portion that supports the base portion, wherein when the base portion to which the load is applied satisfies predetermined conditions, the support portion displaces the base portion to a predetermined movable position. [Effects of the Invention]

[0007] According to the present invention, it is possible to easily inspect whether or not building components meet the standard values. [Brief explanation of the drawing]

[0008] [Figure 1] This is a partial side cross-sectional view showing a first embodiment of the inspection jig according to the present invention. [Figure 2] This is a partial side cross-sectional view showing the state in which the base portion of the inspection jig in Figure 1 is displaced due to the application of a load. [Figure 3] This is a partial side cross-sectional view showing a second embodiment of the inspection jig according to the present invention. [Figure 4] This is a partial side cross-sectional view showing the state in which the base portion of the inspection jig has been displaced due to the application of a load. [Modes for carrying out the invention]

[0009] The following describes an example of an embodiment of the inspection jig according to the present invention, with reference to the attached drawings. In the following description, the vertical direction is approximately the vertical direction (the vertical direction on the plane of the drawing), where the side of the base portion 10 to which the load F is applied is "up", and the side of the base portion 10 opposite to the side to which the load F is applied is "down". The width direction is the left-right direction perpendicular to the vertical direction (the left-right direction on the plane of the drawing), and the front-back direction is the depth direction perpendicular to the vertical and width directions (the depth direction on the plane of the drawing).

[0010] (First Embodiment) Figure 1 is a partial side cross-sectional view showing an inspection jig 1, which is a first embodiment of the inspection jig according to the present invention. Figure 2 is a partial side cross-sectional view showing the state in which the base portion 10 is displaced due to the application of a load F to the inspection jig 1. As shown in Figures 1 and 2, the inspection jig 1 comprises a base portion 10 and a support portion 20 that supports the base portion 10. The inspection jig 1 is an inspection jig used for inspecting building components, and is used, for example, to inspect whether a hazard prevention device installed in fire protection equipment such as a fire shutter meets a predetermined standard value set forth in accordance with the Building Standards Act, etc. For the sake of explanation, the shutter curtain of the fire shutter is shown by a dashed line in the drawing.

[0011] The base portion 10 is a rectangular plate member to which the load F of the fire shutter is applied. The base portion 10 is supported by both ends in the width direction being suspended by support portions 20. The base portion 10 is suspended so that its upper surface 10a is approximately perpendicular to the surface of the shutter curtain of the fire shutter, and receives the load F from the bottom (bottom plate) 2 located at the lowest end of the shutter curtain. In the width direction, the center position of the base portion 10 is approximately coincident with the center position of the bottom 2 of the shutter curtain. The upper surface 10a of the base portion 10 is formed to be approximately flat.

[0012] The base portion 10 has a cushioning material 12 placed on its upper surface 10a. The cushioning material 12 is a component that mitigates the impact when the bottom portion 2 of the descending shutter curtain collides with the base portion 10, and is made of an elastic material such as a plastic foam such as urethane foam or rubber. The shape and dimensions of the base portion 10 are not particularly limited as long as they can efficiently distribute the load F and ensure stability. The material of the base portion 10 is not particularly limited, but examples include metal or high-strength plastic.

[0013] The support section 20 includes a frame 21 and a suspension section 22. The frame 21 has a box-like shape with openings in the front-rear direction and on the top. The frame 21 has a bottom wall 21a, a pair of side walls 21b, and a pair of top walls 21c. The bottom wall 21a is rectangular in plan view. The side walls 21b are erected from each end of the bottom wall 21a in the width direction. The pair of side walls 21b each extend approximately perpendicular to the bottom wall 21a and face each other approximately parallel to each other. The top wall 21c extends inward from the upper ends of the side walls 21b. The top wall 21c extends approximately perpendicular to the side walls 21b and faces the bottom wall 21a approximately parallel to each other. The ends of the pair of top walls 21c are spaced apart, and an opening 21d is formed between these ends, through which the bottom 2 of the fire shutter can enter and exit.

[0014] The top wall 21c is a locking part located above the base portion 10. The suspension portion 22 is hooked onto and locked to the top wall 21c. The shape and dimensions of the frame 21 are not particularly limited as long as it can suspend the base portion 10 from above. The material of the frame 21 is also not particularly limited, but examples include metal and high-strength plastic.

[0015] The suspension part 22 is a member for suspending the base part 10, with one end locked to the top wall 21c of the frame 21 and the base part 10 attached to the other end. The suspension part 22 has an annular member 23 (first member) positioned on the top wall 21c side and a spherical member 24 (second member) positioned on the base part 10 side and fitted into the annular member 23. The annular member 23 has a rod-shaped portion 23a extending in the vertical direction and a C-shaped hole portion 23b formed at the tip of the rod-shaped portion 23a. A belt 25 is attached to the upper end side of the rod-shaped portion 23a (opposite the hole portion 23b) for hooking and locking it to the top wall 21c. By locking the rod-shaped portion 23a to the top wall 21c with the belt 25, the annular member 23 is suspended such that the opening side of the hole portion 23b faces downward.

[0016] The spherical member 24 has a rod-shaped portion 24a extending vertically and a spherical portion 24b with a circular cross-section formed at the tip of the rod-shaped portion 24a. A belt 26 for hooking and securing the base portion 10 is attached to the lower end side of the rod-shaped portion 24a (opposite the spherical portion 24b). The spherical portion 24b can be fitted into the hole 23b of the annular member 23, and the outer surface of the spherical portion 24b is shaped to conform to the inner surface of the hole 23b. With the spherical portion 24b fitted into the hole 23b of the annular member 23, the spherical member 24 is suspended such that the belt 26 hangs downward.

[0017] When the base portion 10 to which a load F is applied satisfies predetermined conditions, the suspension portion 22 displaces the base portion 10 to a predetermined movement position. The predetermined movement position is a position that indicates the base portion 10 has moved a predetermined distance downward (in the direction to which the load F is applied) from the initial position of the base portion 10 when no load F is applied. Preferably, the predetermined distance is a size that can be clearly distinguished by visual inspection. In the first embodiment, the predetermined movement position is the position in which the base portion 10 is placed on the bottom wall 21a of the frame 21.

[0018] The suspension section 22 is configured to release the suspension of the base section 10 when the base section 10 to which a load F is applied satisfies predetermined conditions. Specifically, the annular member 23 and the spherical member 24 are configured such that the spherical member 24 detaches from the annular member 23. As shown in Figure 2, when the spherical member 24 detaches from the annular member 23, the spherical member 24 and the base section 10 attached to the spherical member 24 fall, and the base section 10 is placed on the bottom wall 21a of the frame 21 (displaced state). The material of the suspension section 22 is not particularly limited, but examples include elastically deformable synthetic resin.

[0019] The predetermined condition is a condition for confirming whether or not a reference value for a building hardware set based on the Building Standards Act or the like is satisfied. For example, a harm prevention device installed in a fireproof shutter is required to satisfy the reference values defined based on the Building Standards Act or the like, such that the compressive force and kinetic energy applied when the fireproof shutter is closed are equal to or less than a certain reference value. Specifically, the harm prevention device is required to have a compressive load of 150 N or less when the fireproof shutter closes, or a stop distance, which is the movement distance from when the fireproof shutter senses contact with a person until it stops, of 5 cm or less. Therefore, by setting the predetermined condition as "the load F applied to the pedestal portion 10 is equal to or greater than a predetermined value" or "the movement amount of the pedestal portion 10 to which the load F is applied is equal to or greater than a predetermined value", and setting the predetermined value based on the above reference value, it is possible to inspect whether the harm prevention device satisfies the above reference value. The predetermined value in the predetermined condition may be the reference value (150 N or 5 cm) of the harm prevention device itself, or may be a numerical value within a range that gives a margin to the reference value or a value calculated based on the reference value. Further, by placing an additional weight on the pedestal portion 10 in advance or the like, the conditions may be made stricter, for example, the suspension of the pedestal portion 10 is released even if the load F actually applied to the pedestal portion 10 is smaller than the reference value.

[0020] For example, the hole portion 23b and the ball portion 24b are configured to be fittable to each other, and the ball portion 24b falls out of the hole portion 23b when the above predetermined condition is satisfied. When the load applied to the ball portion 24b is less than the predetermined set value, the fitting between the hole portion 23b and the ball portion 24b is maintained, and when the load applied to the ball portion 24b is equal to or greater than the predetermined set value, the hole portion 23b deforms radially outward and the ball portion 24b disengages from the hole portion 23b. Here, the predetermined set value is a value set based on the predetermined value in the above predetermined condition. Since the suspension portions 22 suspend the pedestal portion 10 at both ends of the pedestal portion 10, the load applied to the ball portion 24b is approximately half of the load F applied to the pedestal portion 10. Therefore, for example, when the predetermined condition is "the load F applied to the pedestal portion 10 is 150 N or more", the predetermined set value is approximately half of 150 N, and when a load of approximately half of 150 N or more is applied to the ball portion 24b, the ball portion 24b falls out of the hole portion 23b.

[0021] Hereinafter, a specific inspection method using the inspection jig 1 when the predetermined condition is set as "the load F applied to the pedestal portion 10 is 150 N or more" will be described. The inspection jig 1 can be used, for example, by being disposed below the bottom portion 2 of the fire shutter on the floor that the bottom portion 2 comes into contact with when descending. The inspection jig 1 is disposed, for example, at a central portion in the front-rear direction with respect to the bottom portion 2 of the fire shutter. The number and arrangement positions of the inspection jigs 1 are not particularly limited, and for example, a total of three inspection jigs 1 may be disposed at both end portions and the central portion in the front-rear direction with respect to the bottom portion 2 of the fire shutter. Further, the inspection jig 1 may be disposed directly on the floor, or may be disposed with a separately prepared mounting table or the like interposed between the inspection jig 1 and the floor. In the inspection, the fire shutter is lowered in the state where the inspection jig 1 is disposed in this manner. The lowering method of the fire shutter may be an electric lowering method, or a self-weight lowering method in which the speed is controlled by a speed governor or the like.

[0022] When the descending bottom portion 2 of the fire shutter reaches the cushioning material 12 of the pedestal portion 10, a load F is applied to the pedestal portion 10. At this time, if the load F is less than 150 N, the fitted state between the hole portion 23b of the hanging portion 22 and the ball portion 24b is maintained. In contrast, when the load F is 150 N or more, the ball portion 24b falls out of the hole portion 23b of the hanging portion 22, and the pedestal portion 10 falls onto the bottom wall 21a of the frame 21. Therefore, the inspector can inspect whether the hazard prevention device satisfies the above reference value (whether the load F applied to the pedestal portion 10 does not exceed 150 N) by confirming whether the pedestal portion 10 does not fall and is maintained in the suspended state. As described above, according to the inspection jig 1, it is possible to easily inspect whether the fire shutter satisfies the reference value defined based on the Building Standards Act or the like without using a numerical measuring device such as a force gauge as in the conventional art.

[0023] Furthermore, according to the inspection jig 1, the cushioning material 12 of the base portion 10 can mitigate the force with which the load F is applied to the base portion 10. This prevents the base portion 10 from falling downward due to the force of the applied load F, even if the above predetermined conditions are not met.

[0024] Furthermore, since the inspection jig 1 is composed of a relatively simple structure consisting of an interlocking structure between an annular member 23 and a spherical member 24, it is possible to quickly release this interlocking structure when predetermined conditions are met. In addition, the relatively simple structure can reduce manufacturing costs.

[0025] (Second embodiment) Figure 3 is a partial side cross-sectional view showing inspection jig 1A, which is a second embodiment of the inspection jig according to the present invention. Figure 4 is a partial side cross-sectional view showing the state in which the base portion 10 is displaced due to the application of a load F to inspection jig 1A. In the following description, parts common to the first embodiment are denoted by the same reference numerals in the drawings and detailed descriptions are omitted.

[0026] Inspection jig 1A, like inspection jig 1, is used to inspect whether a hazard prevention device installed in fire protection equipment such as a fire shutter meets the prescribed standard values ​​set forth in accordance with the Building Standards Act, etc. As shown in Figures 3 and 4, inspection jig 1A comprises a base portion 100, a support portion 200 that supports the base portion 100, and a detection unit 40.

[0027] The base portion 100 is a plate member similar to the base portion 10, and is supported by the support portion 200 at approximately the center position in the width direction of the lower surface 100b. The base portion 100 is positioned such that its upper surface 100a is approximately perpendicular to the surface of the shutter curtain of the fire shutter, and receives the load F from the bottom 2 of the shutter curtain. In the width direction, the center position of the base portion 100 is positioned such that it approximately coincides with the center position of the bottom 2 of the shutter curtain. The upper surface 100a of the base portion 100 is formed to be approximately flat. The base portion 100 has a cushioning material 112 placed on its upper surface 100a. The cushioning material 112 is the same material as the cushioning material 12. The shape, dimensions, and material of the base portion 100 are not particularly limited, similar to the base portion 10.

[0028] The support section 200 includes a base 27 which is placed on the floor or the like, a support column 28 erected on the base 27, and a beam 29 attached to the upper part of the support column 28. The beam 29 has a fulcrum P at the part attached to the support column 28 and is supported by the support column 28 so as to be rotatable around the fulcrum P. A base section 100 is attached to one end 29a of the beam 29 so as to be placed on it, and a weight 30 (load-resisting member) is attached to the other end 29b of the beam 29 so as to be suspended from it.

[0029] The support point P of the beam 29 is shown to be located approximately at the center of the beam 29, but it may be eccentric from the center of the beam 29. That is, the ratio of the length A from one end 29a of the beam 29 to the support point P and the length B from the other end 29b of the beam 29 to the support point P may be different. By changing this ratio of length B to length A, the load of the weight 30 can be reduced. Hereinafter, the ratio of length B to length A will also be referred to as the "arm ratio B / A". The materials of the base 27, the support column 28, and the beam 29 are not particularly limited, but examples include metal and high-strength plastic.

[0030] The weight 30 is, for example, a weight made of metal or the like. When no load F is applied to the base portion 100, the weight 30 is placed on the switch 41 of the detection unit 40, which is provided on the base 27. In this state, the beam 29 is not horizontal, and one end 29a is tilted upward more than the other end 29b. When a load F is applied to the base portion 100, if the base portion 100 satisfies predetermined conditions, the support portion 200 displaces the base portion 100 to a predetermined movable position. In the second embodiment, the predetermined movable position is the position where the beam 29 is tilted to such an extent that the weight 30 is lifted off the switch 41, and the base portion 10 has moved downward by a distance corresponding to this tilt. The predetermined conditions are the same as in the first embodiment, and are conditions for confirming whether or not the standard values ​​for building components are met based on the Building Standards Act, etc.

[0031] The support section 200 is configured such that, under predetermined conditions, the load F applied to the base section 100 and the load of the weight 30 are in equilibrium. When the load F and the load of the weight 30 are in equilibrium, the weight 30 lifts off the switch 41, and the beam 29 tilts upward at the other end 29b and downward at the one end 29a. The base section 10 moves by a distance corresponding to this tilt of the beam 29 in the direction in which the load F is applied (downward).

[0032] Specifically, the load of the weight 30 is set to balance the load F applied to the base 10 when the base 10 satisfies predetermined conditions. Here, if the support point P of the beam 29 is eccentric from the center of the beam 29 and the arm ratio B / A is large, the load F can be balanced by the lever principle with a weight 30 that is lighter than the load F. For example, if the predetermined condition is "the load F applied to the base 10 is 150N or more", the load of the weight 30 can be less than 150N.

[0033] The detection unit 40 includes a switch 41 (detection unit) that detects when the base portion 100 has been displaced to a predetermined position, and a lamp 42 (output unit) that outputs information indicating that the switch 41 has detected the displacement. The switch 41 and the lamp 42 are connected by a power supply circuit and wiring, etc. (not shown). The switch 41 is in the off state when the weight 30 is placed on the base portion 100 and no load F is applied to it. The switch 41 is turned on when the weight 30 is lifted away from the switch 41 and no longer in contact with the weight 30. The lamp 42 is off when the switch 41 is off. When the switch 41 is turned on, current flows through the power supply circuit, etc., causing the lamp 42 to light up.

[0034] The following describes a specific inspection method using the inspection jig 1A when the predetermined condition is set to "the load F applied to the base portion 10 is 150N or more." Similar to the first embodiment, the inspection jig 1A can be used by placing it below the bottom portion 2 of the fire shutter and on the floor that the bottom portion 2 contacts when lowered. Similar to the first embodiment, the number and placement of the inspection jigs 1A are not particularly limited. For the inspection, the fire shutter is lowered with the inspection jigs 1A in place as described above.

[0035] When the bottom 2 of the descending fire shutter reaches the cushioning material 112 of the base 100, a load F is applied to the base 100. At this time, if the load F is less than 150N, the inclination of the beam 29 remains in its initial state, and the weight 30 is resting on the switch 41. On the other hand, if the load F is 150N or more, the weight 30 lifts off the switch 41, and the beam 29 tilts upward at the other end 29b and downward at the one end 29a. This tilt of the beam 29 causes the base 10 to move downward. Therefore, the inspector can check whether the hazard prevention device meets the above standard value by confirming whether the base 10 is held in place without moving downward. In summary, with the inspection jig 1A, as in the first embodiment, it is possible to easily check whether the fire shutter meets the standard value stipulated in the Building Standards Act, etc.

[0036] Furthermore, with the inspection jig 1A, the cushioning material 112 of the base portion 100 can mitigate the force with which the load F is applied to the base portion 100. This prevents the base portion 100 from moving downward due to the force of the applied load F, even if the above predetermined conditions are not met.

[0037] Furthermore, with the inspection jig 1A, the lamp 42 lights up when the base portion 100 is displaced to a predetermined movable position. Therefore, by checking whether or not the lamp 42 is lit, it is easy to confirm whether or not the base portion 10 is held in place without being displaced to the predetermined movable position.

[0038] Furthermore, the inspection jig 1A allows for visual confirmation of the inclination of the beam 29 and the displacement of the weight 30, making verification easy.

[0039] Furthermore, with the inspection jig 1A, if the support point P of the beam 29 is offset from the center of the beam 29, the lever principle can be used to balance the load F applied to the base 100 with a weight 30 that is lighter than the load. As a result, the inspection jig 1A can be made smaller and lighter, and it can be easily transported to the site.

[0040] An example of an embodiment embodying the present invention has been described above with reference to Figures 1 to 4, but the above-described embodiment may be modified as follows.

[0041] For example, in the first embodiment, the first member on the top wall 21c side was described as an annular member 23 and the second member on the base portion 10 side as a spherical member 24, but any shape is acceptable as long as they can be fitted together. Also, the number and arrangement of the annular member 23, spherical member 24, and belts 25, 26 are not limited to those described in the above embodiment, and for example, multiple of these members may be arranged in a row in the depth direction. Furthermore, these members may be elongated in the depth direction. That is, for the annular member 23, the rod-shaped portion 23a may be a plate-shaped portion and the hole portion 23b may be a slit-type cylindrical portion, and for the spherical member 24, the entire member may be a cylindrical member, with the rod-shaped portion 24a being a plate-shaped portion and the spherical portion 24b being a cylindrical portion. In this case, the belts 25, 26 may be elongated in the depth direction and multiple belts may be arranged in a row. Furthermore, the mechanism configured to detach one member from the other member in the suspension portion 22 when predetermined conditions are met is not limited to the example of the first embodiment and may be realized by other mechanisms. For example, a ball lock mechanism (a mating structure in which a groove is formed in one member and a ball that fits into this groove is formed in the other member, and when a load exceeding a predetermined value is applied, the ball is pushed out of the groove and the mating is released), a magnetic force mechanism (a mechanism in which a magnet is attached to a member and it is attracted by magnetic force, and when a load exceeding a predetermined value is applied, the magnet is released), etc. may also be used.

[0042] Furthermore, the locking and securing structure between the base portion 10 or the top wall 21c and the belt 25 can employ various structures other than simply hooking and locking. For example, the locking and securing structure may be constructed by forming a hole or groove in either the base portion 10 or the top wall 21c or the belt 25, and forming a pin or projection on the other that engages with the hole or groove.

[0043] Furthermore, in the second embodiment, an example was described in which a weight 30 is attached to the other end 29b of the beam 29 as a load-resisting member. However, the load-resisting member is not limited to a weight 30; it may also be an elastic member such as a spring. For example, the load-resisting member may be appropriately selected depending on the type of object to be inspected and the inspection conditions.

[0044] Furthermore, the configuration of the detection unit 40's detection and output sections is not limited to the switch 41 and lamp 42 described above. For example, the detection section may be configured with a sensor such as an acceleration sensor, and the output section may be configured with a device that outputs sound, such as a buzzer or speaker, or displays, such as a display. Also, the inspection jig 1 of the first embodiment may be equipped with a detection unit similar to the detection unit 40 of the second embodiment.

[0045] Furthermore, in the above embodiment, the case where the predetermined condition is "the load F applied to the base portion 10 is 150N or more" was specifically described, but the predetermined condition is not limited to such load-related conditions, and may also be a condition related to kinetic energy, such as "the amount of movement of the base portion to which the load is applied is greater than or equal to a predetermined value." When such a condition is set, for example, if the amount of movement of the base portion is less than the predetermined value, the base portion will not fall or will only tilt to the extent that the beam does not lift off the weight, while if the amount of movement of the base portion is greater than or equal to the predetermined value, the beam may tilt to the extent that the base portion falls or the weight lifts off, causing the base portion to lower. In addition, a sensor or the like may be provided to detect the amount of movement of the base portion, and the base portion may be displaced based on the detected amount of movement. Furthermore, the predetermined condition is not limited to conditions for meeting standard values ​​established based on the Building Standards Act, etc., as described in the above embodiment, but may also be, for example, a condition for confirming whether or not the standard values ​​for opening and closing force of building components as defined in the Japanese Industrial Standards (JIS standards) are met. Furthermore, the standard values ​​of the predetermined conditions are not limited to domestic standard values, but may also be standard values ​​established in foreign countries or international standard values. Furthermore, the standard values ​​for the specified conditions may be set not only in accordance with legal regulations, but also by considering voluntary standards independently set by companies or industries, conditions based on inter-company contracts, sales conditions, etc.

[0046] Furthermore, although the above embodiment described an example in which the inspection object of the inspection jig 1,1A is a fire shutter, the inspection object of the inspection jig according to the present invention is not limited to fire shutters, but may also be fire protection equipment other than fire shutters, such as fire doors, escape doors, sashes, elevator doors, and other building components.

[0047] The drawings are schematic, and the thickness, width, and proportions of each part are not limited to those shown in the drawings. Furthermore, the ordinal numbers used in this specification are for convenience in distinguishing components and do not indicate order or priority.

[0048] (Note) This specification discloses the following technologies in one aspect. The reference numerals listed below correspond to those used in the accompanying drawings, but are provided as examples only and are not intended to limit the inventions of this application.

[0049] (Technology 1) An inspection jig (1,1A) used for inspecting joinery, The base portion (10, 100) to which the load (F) of the aforementioned joinery is applied, The system comprises a support portion (20, 200) that supports the base portion (10, 100), An inspection jig (1,1A) in which, when the base portion (10,100) to which the load (F) is applied satisfies predetermined conditions, the support portion (20,200) displaces the base portion (10,100) to a predetermined movable position.

[0050] According to Technology 1, when the load of a joinery is applied to the base, if the base does not meet the predetermined conditions, the base will not be displaced to the predetermined position. If the base does meet the predetermined conditions, the base will be displaced to the predetermined position. Therefore, the inspector can check whether the predetermined conditions are met by confirming whether the base has been displaced to the predetermined position. In summary, the inspection jig of Technology 1 allows for easy inspection of whether an object to be inspected, such as joinery, meets the standard values ​​as predetermined conditions.

[0051] (Technology 2) The predetermined conditions are that the load (F) applied to the base portion (10, 100) is greater than or equal to a predetermined value, or that the amount of movement of the base portion (10, 100) to which the load (F) is applied is greater than or equal to a predetermined value. The inspection jig (1,1A) described in Technical 1.

[0052] Technology 2 allows for a suitable inspection of whether the magnitude of the load and kinetic energy of the building components meet predetermined standard values.

[0053] (Technology 3) A detection unit (41) detects that the base portion (100) has been displaced, The system includes an output unit (42) that outputs information indicating that the detection unit (41) has detected something, The inspection jig (1A) described in Technical 1 or 2.

[0054] Technology 3 detects when the base is displaced to a predetermined position, and this displacement is output as information by the output unit. Therefore, by checking whether or not this information is output, it is easy to confirm whether the base is held in place without being displaced to the predetermined position. (Technology 4) The base portion (10, 100) has a cushioning material (12, 112) placed on its upper surface (10a, 100a). Inspection fixture as described in Technical 1 or 2 (1,1A).

[0055] Technology 4 allows the cushioning material to mitigate the force with which the load is applied to the base. This prevents the base from being displaced to a predetermined position due to the force of the applied load, even if the predetermined conditions are not met.

[0056] (Technology 5) The support portion (20) has a locking portion (21c) located above the base portion (10) and a suspension portion (22) that locks onto the locking portion (21c) and suspends the base portion (10), The suspension portion (20) is configured to release the suspension of the base portion (10) when the base portion (10) satisfies the predetermined conditions. The inspection jig (1) described in Technical 1 or 2.

[0057] With Technology 5, the suspension of the base is released when predetermined conditions are met, so it is easy to check whether the predetermined conditions are met by checking whether the suspension has been released or not.

[0058] (Technology 6) The suspension portion (22) has a first member (23) positioned on the side of the locking portion (21c) and a second member (24) positioned on the side of the base portion (10) and fitting into the first member (23), The first member (23) and the second member (24) are configured such that the second member (24) detaches from the first member (23) when the base portion (10) satisfies the predetermined conditions. The inspection jig (1) described in Technical 5.

[0059] Technology 6 allows for a relatively simple structure consisting of an interlocking ring-shaped member and a spherical member, enabling a quick release of this interlocking structure when certain conditions are met. Furthermore, its relatively simple structure reduces manufacturing costs.

[0060] (Technology 7) The support portion (200) has a beam (29) that is rotatably supported around a fulcrum (P), the base portion (100) is attached to one end (29a) of the beam (29), and the load-bearing member (30) is attached to the other end (29b) of the beam (20). When the base portion (100) satisfies the predetermined conditions, the load (F) applied to the base portion (100) and the load of the load-resisting member (30) are configured to be in equilibrium. The inspection jig (1A) described in Technical 1 or 2.

[0061] According to Technology 7, when the predetermined conditions are met, the load applied to the base and the load on the load-responding member are balanced. Therefore, by checking the inclination of the beam when balanced, it is possible to easily inspect whether the predetermined conditions are met.

[0062] (Technology 8) The aforementioned support point (P) is eccentric from the center of the beam (29). The inspection jig (1A) described in Technical 7.

[0063] Technology 8 allows the support point of the beam to be eccentrically positioned from the center of the beam, enabling the use of the lever principle to balance the load applied to the base with a weight lighter than the load itself. As a result, the inspection jig can be made smaller and lighter, and can be easily transported to the site.

[0064] Although one embodiment of the present invention has been described above, the present invention is not limited to such specific embodiments, and unless otherwise specifically limited in the above description, various modifications and changes are possible within the scope of the spirit of the present invention as described in the claims. For example, the configuration of the above-described embodiment can be added or deleted as appropriate, and the configuration of one embodiment can be provided in other embodiments. Furthermore, the effects in the above-described embodiment are merely illustrative of the effects that may result from the present invention. In other words, the effects of the present invention are not limited to the above-described effects, and additional effects may also be produced in addition to the above-described effects. [Explanation of Symbols]

[0065] 1,1A: Inspection fixture 10,100: Base 10a, 100a: Top surface 12,112: Cushioning material 20,200: Support part 21c: Ceiling wall (locked part) 22: Hanging section 23: Annular member (first member) 24: Spherical member (second member) 29: Beam 29a: one end 29b: Other end 30: Weight (load-resistant member) 41: Switch (detection unit) 42: Lamp (Output section) F: Load P:Fulcrum

Claims

1. An inspection jig used for inspecting joinery, The base portion to which the load of the aforementioned joinery is applied, It comprises a support part that supports the base part, An inspection jig that, when the base portion to which the aforementioned load is applied satisfies predetermined conditions, the support portion displaces the base portion to a predetermined movable position.

2. The predetermined conditions are that the load applied to the base portion is equal to or greater than a predetermined value, or that the amount of movement of the base portion to which the load is applied is equal to or greater than a predetermined value. The inspection jig according to claim 1.

3. A detection unit that detects the displacement of the base portion, The system includes an output unit that outputs information indicating that the detection unit has detected something. The inspection jig according to claim 1 or 2.

4. The base portion has a cushioning material placed on its upper surface. The inspection jig according to claim 1 or 2.

5. The support portion has a locking portion located above the base portion and a suspension portion that locks onto the locking portion and suspends the base portion. The suspension part is configured to release the suspension of the base part when the base part satisfies the predetermined conditions. The inspection jig according to claim 1 or 2.

6. The suspension portion comprises a first member positioned on the locking portion side and a second member positioned on the base portion side and engaging with the first member. The first member and the second member are configured such that the second member detaches from the first member when the base portion satisfies the predetermined conditions. The inspection jig according to claim 5.

7. The support portion has a beam that is rotatably supported around a pivot point, the base portion is attached to one end of the beam, and a load-bearing member is attached to the other end of the beam. The base portion is configured such that, when the predetermined conditions are met, the load applied to the base portion and the load of the load-resisting member are in equilibrium. The inspection jig according to claim 1 or 2.

8. The aforementioned support point is eccentric from the center of the beam. The inspection jig according to claim 7.

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