JP6468837B2 - Seat frame inspection device - Google Patents

Description

  The present invention relates to a seat frame inspection apparatus.

  In the seat frame inspection device of the conventional seat device, the seat back frame is tilted by the motor on the inspection device side, the tilt angle at that time is detected, and the quality of the seat frame is determined from the detected tilt angle at that time ( For example, see Patent Document 1).

Japanese Patent No. 5242176

However, since the conventional inspection apparatus performs pass / fail determination only for the tilt angle of the seat back frame, the inspection items are limited, and sufficient product inspection cannot be performed.
An object of the present invention is to provide an inspection apparatus capable of performing a more detailed inspection on a seat frame in a wider range.

The invention described in claim 1
In a seat frame inspection apparatus that performs an inspection related to the operation of the movable portion with respect to a seat frame including at least two movable portions,
An installation base for mounting the seat frame;
An operation unit that outputs an operation command for operating at least two of the movable units of a seat frame installed on the installation table;
For each of the two or more movable parts operated by the actuating part, comprising a plurality of measurement parts for measuring each of a plurality of inspection items related to the operation ,
The seat frame includes a first weight that is disposed to face the seat back frame and has a locking hook portion that is locked to the seat back frame .

The invention according to claim 2 is the seat frame inspection apparatus according to claim 1,
The locking hook portion of the first weight serves as a swing restricting portion that restricts the swing of the lower end portion of the first weight when it is disposed on the seat frame .

The invention according to claim 3 is the seat frame inspection apparatus according to claim 1 or 2,
A measuring unit attaching / detaching mechanism for attaching / detaching one or more measuring units to / from a seat frame installed on the installation table;
The first weight disposed to face the seat back frame of the seat frame, and the second weight disposed to face the seat frame,
The first weight and the second weight are detachable from the seat frame .

The invention according to claim 4 is the seat frame inspection apparatus according to any one of claims 1 to 3 ,
The measuring unit is provided on the weight.

The invention according to claim 5 is the seat frame inspection device according to any one of claims 1 to 4 ,
The actuating unit causes the operations of the two or more movable units to be performed in parallel with each other.

The invention according to claim 6 is the seat frame inspection apparatus according to claim 5 ,
The operating unit performs the operations of the first movable unit and the second movable unit among the two or more movable units in parallel,
About the first movable part, as the inspection item, comprising a measurement part for measuring vibration during operation,
The measurement unit measures vibration in a direction different from the operation direction of the second movable unit.

The invention according to claim 7 is the seat frame inspection apparatus according to claim 6 ,
The first movable part is a reclining mechanism for rotating the seat back frame, and the second movable part is a slide mechanism for sliding the cushion side frame back and forth.

The invention according to claim 8 is the seat frame inspection apparatus according to any one of claims 5 to 7 ,
The seat frame includes, as the two or more movable parts, a slide mechanism that slides the cushion side frame back and forth, a height mechanism that raises and lowers the cushion side frame, and a tilt mechanism that rotates the seat frame.
The actuating unit executes the operations of the height mechanism and the tilt mechanism so as not to overlap with each other with respect to the operation of the slide mechanism.

The invention according to claim 9 is the seat frame inspection apparatus according to any one of claims 5 to 8 ,
The actuating unit starts and ends the operation of another movable unit after the start of the operation of the movable unit having the longest operation time among the two or more movable units.

The invention according to claim 10 is the seat frame inspection apparatus according to any one of claims 1 to 9 ,
At least one or more of the movable parts of the seat frame includes a motor as a drive source,
The inspection item includes a measuring unit that detects a current of the motor.

  Since the invention according to claim 1 includes a plurality of measuring units that respectively measure a plurality of inspection items related to the operation for each of the two or more movable units, a plurality of the movable units of the seat frame are provided with a plurality of measuring units. Inspection items can be inspected, and a more detailed inspection can be performed in a wider range.

In the invention according to claim 2, since the first weight has the rocking restricting portion, the rocking is suppressed when the first weight is attached to the seat frame, and the influence on the measurement by the measuring portion is suppressed. Accurate measurement can be performed.

The invention according to claim 3 includes a measurement unit attaching / detaching mechanism that attaches and detaches one or more measurement units to / from the seat frame installed on the installation base, and thus reduces the work load of the measurement unit attachment work, It is possible to speed up work by automation.
In addition, since the measuring unit is attached to the measuring unit attaching / detaching mechanism, unlike the case of manual work, it is possible to always attach the measurement at a fixed position, preventing variations such as manual work and enabling more accurate inspections. It becomes.
In addition , since the weight that can be attached to and detached from the seat frame is provided, it is possible to create a state where a person is virtually sitting on the seat frame by the weight, and to perform an inspection in a state close to the use state.
In addition, since it includes a first weight that faces the seat back frame of the seat frame and a second weight that faces the seat frame, the load is distributed to each part of the seat frame so that a person sits on the seat frame. The inspection can be performed in a state close to the use state.

In the invention according to claim 4 , since the measuring part is mounted on the weight, the mounting of the measuring part is completed by mounting the weight on the seat frame, and the burden of the mounting work can be reduced.

In the invention according to claim 5 , since the operation part causes the operation of two or more movable parts to be performed in parallel, the inspection time is compared with the case where the inspection is performed by sequentially operating the two or more movable parts. Can be shortened.

The invention according to claim 6 is the operation direction of the second movable portion with respect to the first movable portion, which is one of the first and second movable portions, wherein the operating portion executes the operation in parallel with the same period. Because it has a measurement unit that measures vibrations in different directions, when measuring vibrations for the first movable part, the influence of the movement of the second movable part that operates in a different direction is reduced, and quick and highly accurate measurement Can be performed.

According to the seventh aspect of the invention, the first movable part that performs the operation in parallel with the same period is a reclining mechanism that rotates the seat back frame, and the second movable part slides the cushion side frame back and forth. Because it is a slide mechanism, it is possible to inspect the movable part with a long operation stroke and a long operation time even in the seat frame in parallel with the same period, which can further reduce the inspection time. It becomes possible.

According to the eighth aspect of the present invention, the operation unit executes the operations of the height mechanism and the tilt mechanism so as not to overlap with each other with respect to the operation of the slide mechanism. Measurement can be performed more accurately without being affected by movement.

According to the ninth aspect of the present invention, the operation unit starts and ends the operation of the other movable unit after the start of the operation of the movable unit having the longest operation time among the two or more movable units. It is possible to more efficiently reduce the time.

In the invention according to claim 10 , since at least one or more movable parts are provided with a motor as a drive source, and as a test item, a measurement part for detecting a current of the motor is provided, so whether the motor mounted on the seat frame is good or abnormal It becomes possible to inspect about.

It is a perspective view of a seat frame. It is a side view of a seat frame. It is a front view of a seat frame inspection device. It is a side view of a seat frame inspection device. It is a side view of an installation stand. It is a front view of the 1st weight. It is a side view of the 1st weight. It is a top view of the 2nd weight. It is a side view of the 2nd weight. It is a side view which shows arrangement | positioning of the various displacement meters with respect to the seat frame installed in the installation stand. It is a side view which shows arrangement | positioning of the various sound level meters with respect to the seat frame installed in the installation stand. It is a top view which shows arrangement | positioning of the various sound level meters and accelerometers with respect to the seat frame installed in the installation stand. It is a side view which shows arrangement | positioning of the various accelerometers with respect to the seat frame installed in the installation stand. It is a top view which shows arrangement | positioning and operation | movement of four measurement part attachment / detachment mechanisms. It is a side view which shows arrangement | positioning and operation | movement of two measurement part attachment / detachment mechanisms. It is a block diagram which shows the control system of a seat frame test | inspection apparatus. It is a flowchart which shows all the processes of the test | inspection of the seat frame by a control apparatus. It is a flowchart shown about the operation control and process at the time of the test | inspection with respect to a movable part.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing. However, although various technically preferable limitations for implementing the present invention are given to the embodiments described below, the scope of the invention is not limited to the following embodiments and illustrated examples.

In this embodiment, the seat frame inspection apparatus 10 that performs various inspections related to the operation of the seat frame 100 that forms the skeleton of the seat apparatus installed in the vehicle interior is illustrated.
In the following description, the front / rear / left / right / up / down directions as viewed from a person sitting on the seat apparatus, which is a completed product of the seat frame 100, are described as front / rear / left / right / up / down.

[Seat frame]
1 is a perspective view of the seat frame 100, and FIG. 2 is a side view.
As illustrated, the seat frame 100 includes a seat back frame 120, a pair of left and right cushion side frames 130, 130 disposed on the left and right of the lower portion of the seat back frame 120, and a pair of left and right cushion side frames 130, 130, respectively. A seat frame 140 that is disposed between and supports a cushion pad (not shown), a base frame 150 provided below the cushion side frames 130 and 130, and a seat back frame with respect to the cushion side frames 130 and 130. A reclining mechanism 160 as a movable part that tilts 120, a slide mechanism 170 as a movable part that moves the base frame 150 back and forth, and the cushion side frames 130 and 130 are moved up and down with respect to the base frame 150. A height mechanism 180 as moving parts, and a tilt mechanism 190 as a movable portion for rotating the seat frame 140 (see FIG. 16) with respect to the cushion side frame 130, 130.
The frames 120, 130, 140, and 150 are mainly made of a rust-proof metal (for example, stainless steel).

The seat back frame 120 includes a pair of back side frames 121 and 121 on the left and right sides, and a pipe-like upper frame 122 that connects the back side frames 121 and 121 to the top.
A support shaft 123 is provided at the lower end of the seat back frame 120 so as to be connected to the rear ends of the pair of cushion side frames 130 and 130. The support shaft 123 is attached along the left-right direction, and the seat back frame 120 can be rotated in the direction in which the upper end side of the seat back frame 120 moves back and forth with respect to the cushion side frames 130, 130. .

The reclining mechanism 160 is provided on the support shaft 123, and imparts a rotational motion to the seat back frame 120 by a reclining motor 161 (see FIG. 16).
2 indicates a state where the seat back frame 120 is rotated backward by the reclining mechanism 160.

  The left and right cushion side frames 130 and 130 are connected to the base frame 150 by two link members 131 (the other is not shown) connected to the front and rear, respectively, and the base frame has a structure of a so-called four-bar linkage mechanism. It is possible to move up and down with respect to 150.

  The base frame 150 is provided with long slide frames 151 and 151 along the front-rear direction (strictly inclined obliquely upward to the front) on both the left and right sides, and the front and rear via the slide frames 151 and 151. The slide mechanism 170 is movably supported.

The slide mechanism 170 is a pair of left and right slide rails 172 and 172 that individually support the left and right slide frames 151 and 151 of the base frame 150, and for fixing the front end portions of the slide rails 172 and 172 to the assembly position of the seat. Leg portions 173 and 173, and a transmission mechanism 174 that converts and transmits the power of the slide motor 171 (see FIG. 16) to a moving force along the front-rear direction.
2 indicates a state in which the cushion side frame 130 and the seat back frame 120 are moved rearward by the slide mechanism 170.

The height mechanism 180 is provided on the cushion side frame 130 on the left side, and a height motor 181 (see FIG. 16) that serves as a driving source for the lifting operation of the pair of cushion side frames 130 and 130 and the power of the height motor 181 for the lifting operation. And a transmission mechanism 182 for conversion.
2 indicates a state in which the cushion side frame 130 is raised by the height mechanism 180.

The seat frame 140 is provided at the front end portion of the pair of cushion side frames 130 and 130, and the pair of cushion side frames 130 and 130 support the left and right end portions in a rotatable manner.
The seat frame 140 can be rotated around an axis along the left-right direction by the pair of cushion side frames 130, 130, and the front end portion thereof can be moved up and down.

The tilt mechanism 190 is provided on the lower side of the seat frame 140, and imparts an up-and-down rotation operation to the seat frame 140 by a tilt motor 191 (see FIG. 16).
2 indicates a state in which the front end of the seat frame 140 is raised by the tilt mechanism 190.

[Inspection items for seat frame inspection equipment]
In the seat frame inspection apparatus 10, the following inspection items are inspected with respect to the reclining mechanism 160, the slide mechanism 170, the height mechanism 180, and the tilt mechanism 190 which are four movable parts.
That is, regarding the reclining mechanism 160, the operating angle (operating range) of the reclining operation of the seat back frame 120, the synchronization shift at the time of operation, the operating speed at the time of tilting forward and backward, the operating current at the time of operation of the reclining motor 161, Measurement of the operating vibration generated in the seat back frame 120 is performed.
Further, regarding the slide mechanism 170, the operation stroke (operation range) of the slide operation of the base frame 150, the synchronization shift at the time of operation, the operation speed at the time of forward and backward movement, the operation current at the time of operation of the slide motor 171 and the transmission at the time of operation. Measurements are made of the operating sound generated in the mechanism 174, the operating vibration generated in the cushion side frame 130 during operation, and the shocking vibration when switching back and forth.
As for the height mechanism 180, the operation stroke (operation range) of the lifting / lowering operation of the pair of cushion side frames 130, 130, the synchronization shift at the time of operation, the respective operation speeds at the time of ascent and descent, and the time of operation of the height motor 181. , The operating sound generated in the height mechanism 180 during operation, the operating vibration generated in the cushion side frame 130 when lowered, and the shock vibration when the cushion side frame 130 reaches the bottom dead center when lowered.
Further, regarding the tilt mechanism 190, the operation stroke (operation range) of the rotation operation of the seat frame 140, the synchronization shift at the time of operation, the respective operation speeds at the time of the upward rotation and the downward rotation, the operation of the tilt motor 191 Measure the operating current at the time, and shock vibration when reaching the bottom dead center when the seat frame 140 descends.

The “operation angle” is measured by an angle displacement meter that detects a change in angle.
The “operation stroke” is measured by a displacement meter that detects a linear distance change.
Further, the “synchronization shift” is acquired from the difference between the displacement measured by the displacement meter and the operation command.
The “operation speed” is obtained from the time change of the displacement measured by the angular displacement meter or the displacement meter.
The “operating current” is a current value measured by the ammeter from the motor drive circuit.
The “operating sound” is measured with a sound level meter.
“Operating vibration” and “impact vibration” are measured by an accelerometer.
The angular displacement meter, displacement meter, ammeter, noise meter, and accelerometer correspond to the “measurement unit” of the present invention.

[Seat frame inspection device]
3 is a front view of the seat frame inspection apparatus 10, and FIG. 4 is a side view thereof.
The seat frame inspection apparatus 10 measures the above-described various inspection items regarding the operation of each movable portion with respect to the seat frame 100 including four movable portions (the reclining mechanism 160, the slide mechanism 170, the height mechanism 180, and the tilt mechanism 190). Perform the inspection.

  For the above inspection, the seat frame inspection apparatus 10 measures the above-described various inspection items for each of the installation base 20 on which the seat frame 100 is installed and each of the four mechanisms 160 to 190 of the seat frame 100. Displacement meters, ammeters, noise meters and accelerometers as measurement units, and a plurality of measurement unit attaching / detaching mechanisms 40 to 43 (attaching / detaching the accelerometers to / from a specified position of the seat frame 100 installed on the installation base 20 14), a first weight 31 and a second weight 32 that can be attached to and detached from the seat frame 100, and a first weight 31 and a second weight 32 that are attached to and detached from a predetermined position of the seat frame 100. A weight attaching / detaching mechanism 33 that performs overall control of the entire seat frame inspection device 10, and a housing that supports and stores the entire configuration of the seat frame inspection device 10 1, includes an input device 98 for inputting start or the like of the inspection with respect to the seat frame check unit 10, and a display device 99 for displaying various information about the test.

[Installation stand]
FIG. 5 is a side view of the installation table 20.
The installation table 20 includes a rectangular plate-like substrate 21 installed horizontally in the housing 11, and first and second jigs 22, 23 fixed on the upper surface of the substrate 21 along the left-right direction. I have.
The substrate 21 can be moved between the inspection position and the retracted position in the housing 11 by an installation table moving mechanism 24 (see FIG. 16) using a motor as a drive source.

  Above the left and right ends of the first jig 22, a first holding air cylinder 25 (only one is shown) for holding the leg portions 173 and 173 of the seat frame 100 is disposed oppositely. The first holding air cylinder 25 is configured such that the plunger 251 is inserted into the holding hole 173 a formed in the leg portion 173 of the seat frame 100 disposed on the first jig 22. The front end can be fixed on the first jig 22.

  A second holding air cylinder 26 (only one is shown) for holding the slide rails 172 and 172 of the seat frame 100 is disposed inside the left and right ends of the second jig 23. The second holding air cylinder 26 is configured such that the plunger 261 is inserted into a holding hole 172a formed in the slide rail 172 of the seat frame 100 disposed on the second jig 23. The rear end portion can be fixed on the second jig 23.

  In addition, the slide mechanism 170 of the seat frame 100 fixed to the first and second jigs 22 and 23 has a wedge-shaped block 27 inserted in the gap between the rear ends of the slide rails 172 and 172, and rattling is not possible. Is prevented.

[First and second weights]
It is assumed that the inspection of the various items is performed by applying a load in a state where a person is sitting on the seat frame 100. For this reason, first and second weights 31 and 32 having a total weight corresponding to the average human body weight are prepared.

6 is a front view of the first weight 31, and FIG. 7 is a side view.
As shown in the figure, the first weight 31 is attached to the seat back frame 120 and is adjusted to a half weight (for example, 30 kg) of the average human body weight.
The first weight 31 includes a rectangular flat plate-shaped main body portion 311, a locking hook portion 312 extending upward from the upper end portion of the main body portion 311, and left and right end portions at intermediate positions in the vertical direction of the main body portion 311. A pair of upper arm portions 313 and 313 extending in the left-right direction, and a pair of lower arm portions 314 and 314 extending in the left-right direction from the left and right ends of the lower end portion of the main body portion 311 are provided. Yes.
The first weight 31 is entirely made of metal, and a resin or cushioning material is attached to the surface portion that contacts the seat back frame 120. This reduces the occurrence of scratches on the seat back frame 120 when worn.

The locking hook portion 312 has a shape whose upper end is folded back like a hook. By lowering the first weight 31, the upper portion of the seat back frame 120 is placed inside the hook-shaped portion of the locking hook portion 312. The frame 122 can be inserted inside, and the first weight 31 can be suspended from the upper frame 122.
Further, the upper frame 122 has flat surfaces on the front and rear sides, and a flat surface that is in surface contact with the front and rear flat surfaces of the upper frame 122 is provided inside the hook-shaped locking hook portion 312. The lower end portion of the first weight 31 is prevented from swinging back and forth using 122 as a fulcrum. That is, the front and rear flat surfaces formed inside the locking hook portion 312 serve as a swing restricting portion.

Each of the upper arm portions 313 and 313 is extended outward in the left-right direction, and its tip end portion is bent at a right angle toward the seat back frame 120 side. An angle displacement meter 51 for detecting the inclination angle of the seat back frame 120 is provided at the bent portion at the tip.
Each of the lower arm portions 314 and 314 is extended outward in the left-right direction, and the distal end portion thereof is bent and extended downward. Spherical portions 314a and 314a are formed at the lower ends of the lower arm portions 314 and 314, and the displacement meter 54 is in contact with the lower portion. Thereby, the height of the cushion side frames 130 and 130 that are raised and lowered by the height mechanism 180 is detected.

8 is a plan view of the second weight 32, and FIG. 9 is a side view.
The second weight 32 is mounted between the pair of cushion side frames 130 and 130 and is divided into a front main body 321 and a rear main body 322. The front main body 321 is adjusted to, for example, 10 kg, and the rear main body 322 is adjusted to, for example, 20 kg, and the total weight thereof is half the average human body weight (for example, 30 kg). That is, the sum of the first weight 31 and the second weight 32 described above is the average weight of a human body.

  The front main body 321 is mounted in a state of being placed on the seat frame 140 supported by the cushion side frames 130 and 130. The front main body 321 and the rear main body 322 are connected by hinges 325 and 325 so that only the front main body 321 can rotate together with the seat frame 140, and the seat frame A structure that does not hinder the rotation of 140 is adopted.

The front main body 321 has a rectangular flat plate shape, and includes a pair of arm portions 324 and 324 extending in the left-right direction from the left and right ends at the rear end.
Each of the arm portions 324 and 324 extends outward in the left-right direction, and its distal end portion is bent at a right angle downward. A spherical portion 324a (only one is shown) is formed at the lower end portion of the arm portions 324, 324, and the displacement meter 55 is in contact with the lower portion. Thus, the height of the seat frame 140 that is raised and lowered by the tilt mechanism 190 is detected.

  The rear main body 322 has a rectangular flat plate shape, and includes an extending portion 323 extending rearward at the center of the rear end portion. The extended portion 323 has a shape in which the rear end portion is bent downward, and the bent portion of the extended portion 323 is provided between the pair of cushion side frames 130 and 130 by lowering the second weight 32. The second weight 32 can be positioned at an appropriate position in the front-rear direction with respect to the cushion side frames 130, 130.

  The entire second weight 32 is also made of metal, and a resin or cushioning material is attached to the surface portion in contact with the seat back frame 120. Thereby, the generation | occurrence | production of the damage to the cushion side frames 130 and 130 and the seat part frame 140 at the time of mounting | wearing is reduced.

[Weight attachment / detachment mechanism]
As shown in FIG. 3, the weight attaching / detaching mechanism 33 includes a clamp (not shown) at the tip, a first support arm 331 that supports the first weight 31 in a suspended manner, a clamp (not shown) at the tip, and a second A second support arm 332 that supports the weight 32 in a suspended manner, a transport mechanism 333 that transports the support arms 331 and 332 in the left-right direction, and an elevating mechanism 334 that moves the support arms 331 and 332 up and down. ing.

The first support arm 331 and the second support arm 332 are retracted to a retracted position separated from the installation base 20 in a state where the first weight 31 and the second weight 32 are suspended and held by clamps. . At the time of inspection, the transport mechanism 333 moves to above the seat frame 100 installed on the installation table 20, and the first weight 31 and the second weight 32 are lowered by the lifting mechanism 334. As a result, the first weight 31 and the second weight 32 are respectively guided to appropriate attachment positions with respect to the seat frame 100, and the first weight 31 and the second weight 32 are released by releasing the clamp. Installation is complete.
Further, the collection of the first weight 31 and the second weight 32 is performed in the completely reverse procedure to the above attachment. That is, the weight attaching / detaching mechanism 33 clamps the first weight 31 and the second weight 32 at the attachment position, and lifts and conveys them to the retreat position.

[Angle displacement meter]
An angular displacement meter 51 that detects the operating angle of the reclining mechanism 160 is a so-called inclination sensor that detects an inclination angle with respect to the horizontal by the movement of an internal weight or liquid, and as shown in FIG. One upper arm 313 is attached to the bent portion at the tip. The angular displacement meter 51 detects an inclination angle with respect to the horizontal around the central axis along the left-right direction, and inputs the detection signal to the control device 90.

[Displacement meter]
FIG. 10 is a side view showing the arrangement of various displacement meters with respect to the seat frame 100 installed on the installation table 20.
A displacement meter 53 that detects the operating stroke of the sliding motion of the base frame 150 by the sliding mechanism 170, a displacement meter 54 that detects the operating stroke of the lifting and lowering operations of the pair of cushion side frames 130, 130 by the height mechanism 180, and a tilt mechanism 190. The displacement meter 55 that detects the operation stroke of the pivoting motion of the seat frame 140 is a contact-type linear scale that detects the linear movement distance of the object, and follows the detection direction. A detection signal corresponding to the linear distance is input to the control device 90. Each of the displacement meters 53, 54, and 55 has a structure in which the contact is pushed out with a constant pressing force along the detection direction, and abuts against the object with a pressing force that does not affect the measurement. Detection is performed in the state.

The displacement meter 53 that detects the operation stroke of the slide operation of the base frame 150 by the slide mechanism 170 has a contact movement direction that coincides with a slide movement direction of the slide frame 151, and the contact element is rearward of the rear end portion of the slide frame 151. It arrange | positions so that it may contact | abut from. Thereby, the contact of the displacement meter 53 follows the back-and-forth movement of the base frame 150, and the operation stroke can be detected.
In addition, the displacement meter 53 is disposed such that the contact is brought into contact with the rear end portion of the slide frame 151 by installing the seat frame 100 on the installation table 20.

In the displacement meter 54 that detects the operation stroke of the lifting / lowering operation of the pair of cushion side frames 130, 130 by the height mechanism 180, the moving direction of the contact is directed in the vertical direction. The contact is arranged so as to come into contact with the spherical portion 314a located at the lower end of one lower arm portion 314 of the first weight 31 attached to the seat back frame 120 that moves up and down together with the cushion side frame 130 from below. Yes. Thereby, the contact of the displacement meter 54 follows the vertical movement of the cushion side frame 130, and the operation stroke can be detected.
In the displacement meter 54, the contact is brought into contact with the spherical portion 314 a of one lower arm portion 314 by the operation of attaching the first weight 31 to the seat back frame 120 by the weight attaching / detaching mechanism 33. Are arranged as follows.

In the displacement meter 55 that detects the operation stroke of the pivoting operation of the seat frame 140 by the tilt mechanism 190, the moving direction of the contact is directed in the vertical direction. Then, the contact is arranged so as to come into contact with the spherical portion 324a at the lower end of the one arm portion 324 of the second weight 32 that rotates following the rotation of the seat frame 140 from below. Thereby, the contact of the displacement meter 55 follows the rotation of the seat frame 140, and the operation stroke can be detected.
In addition, the displacement meter 55 is configured so that the second weight 32 is attached to the pair of cushion side frames 130 and 130 and the seat frame 140 by the weight attaching / detaching mechanism 33, so It arrange | positions so that it may contact | abut to 324a.

[noise meter]
11 is a side view showing the arrangement of various noise meters with respect to the seat frame 100 installed on the installation table 20, and FIG. 12 is a plan view showing the arrangement of various noise meters and accelerometers.
The sound level meter 57 that detects the operation sound of the slide operation of the base frame 150 by the slide mechanism 170 and the sound level meter 58 that detects the operation sound of the lift operation of the pair of cushion side frames 130 and 130 by the height mechanism 180 are both. A PU probe for detecting acoustic particle velocity.

The sound level meter 57 for detecting the operation sound of the slide mechanism 170 is mounted on the installation table 20 so that the detection unit faces the front surface of the transmission mechanism 174 of the slide mechanism 170 of the seat frame 100 installed on the installation table 20. The sound pressure of the operating sound of the slide mechanism 170 can be detected.
In addition, it is good also as a structure which detects only the sound pressure of a specific wavelength sound by performing detection through a filter.

The sound level meter 57 for detecting the operation sound of the height mechanism 180 is mounted on the installation table 20 so that the detection unit faces the front surface of the shaft of the transmission mechanism 182 of the height mechanism 180 of the seat frame 100 installed on the installation table 20. The sound pressure of the operating sound of the height mechanism 180 can be detected.
In this case as well, only the sound pressure of a specific wavelength sound may be detected by performing detection through a filter.

[Accelerometer]
FIG. 13 is a side view showing the arrangement of various accelerometers with respect to the seat frame 100 installed on the installation table 20.
Depending on the operation of the accelerometer 60 that detects the operation vibration generated in the seat back frame 120 when the reclining mechanism 160 is operated, the accelerometer 61 that detects the operation vibration generated in the cushion side frame 130 when the slide mechanism 170 is operated, and the height mechanism 180 An accelerometer 62 that detects vibration generated in the cushion side frame 130 when descending, and an accelerometer 63 that detects impact vibration when the seat frame 140 reaches the bottom dead center when the seat frame 140 descends due to the operation of the tilt mechanism 190. Each includes an acceleration sensor that detects acceleration in a certain direction and a mounting means (for example, a magnet) that mounts the acceleration sensor at a detection position, and inputs a detection signal corresponding to the detected acceleration to the control device 90.

  The accelerometer 60 for detecting the operating vibration generated in the seat back frame 120 when the reclining mechanism 160 is operated is mounted on a plane perpendicular to the left-right direction of one back side frame 121, and the tilt radius of the seat back frame 120 is Detect acceleration along the direction.

  The accelerometer 61 that detects the operation vibration generated in the cushion side frame 130 during the operation of the slide mechanism 170 is attached on a plane perpendicular to the left and right direction of one cushion side frame 130, and accelerates along the vertical direction. To detect.

  An accelerometer 62 that detects vibration generated in the cushion side frame 130 when descending due to the operation of the height mechanism 180 is attached to the upper part of one cushion side frame 130 and detects acceleration along the front-rear direction.

  The accelerometer 63 that detects shock vibration when the bottom dead center is reached when the seat frame 140 descends due to the operation of the tilt mechanism 190 is an upper surface of the seat frame 140 and one of the end portions in the left-right direction. It detects the acceleration along the longitudinal direction.

[Measurement attachment / detachment mechanism]
FIG. 14 is a plan view showing the arrangement and operation of the four measurement unit attaching / detaching mechanisms 40 to 43, and FIG. 15 is a side view showing the arrangement and operation of the two measuring unit attaching / detaching mechanisms 42, 43.
As described above, each of the accelerometers 60 to 63 is attached to a specified attachment position with respect to the seat frame 100 held on the installation table 20. The four measuring unit attaching / detaching mechanisms 40 to 43 are supported by the housing 11, and each of the measuring unit attaching / detaching mechanisms 40 to 43 can be attached to the specified attachment position of the seat frame 100, or can be removed and collected.

As shown in FIG. 14, the measurement unit attaching / detaching mechanism 40 includes a chuck for gripping the accelerometer 60, a first actuator that switches between gripping and releasing, and an attachment position (side surface of the back side frame 121: solid line in FIG. 14. Position) and a second actuator that moves the chuck between a retracted position (a position indicated by a two-dot chain line in FIG. 14) spaced apart from the seat frame 100 in the left-right direction with respect to the attachment position. Then, the chuck is attached to the seat frame 100 by releasing the accelerometer 60 by moving the chuck to the attachment position along the left-right direction with respect to the seat frame 100 held on the installation table 20.
Further, when the accelerometer 60 is removed and collected, the accelerometer 60 can be gripped by moving the chuck to the mounting position again to be in a gripping state. Then, the chuck moves to the retracted position, and the accelerometer 60 is collected.

As shown in FIG. 14, the measuring unit attaching / detaching mechanism 41 includes a chuck for holding the accelerometer 61, a first actuator for switching between holding and releasing, an attachment position (a side surface of the cushion side frame 130: a solid line in FIG. Position) and a second actuator that moves the chuck between a retracted position (a position indicated by a two-dot chain line in FIG. 14) spaced apart from the seat frame 100 in the left-right direction with respect to the attachment position. Then, the chuck is attached to the seat frame 100 by releasing the accelerometer 61 by moving the chuck to the attachment position along the left-right direction with respect to the seat frame 100 held on the installation table 20.
Further, when the accelerometer 61 is removed and collected, the accelerometer 61 can be gripped by moving the chuck to the mounting position again to be in a gripping state. Then, the chuck moves to the retracted position, and the accelerometer 61 is collected.

As shown in FIGS. 14 and 15, the measurement unit attaching / detaching mechanism 42 includes a chuck that holds the accelerometer 62, a first actuator that switches between holding and releasing, and an attachment position (the upper surface of the cushion side frame 130: FIG. 14. The second actuator that raises or lowers the chuck from the position of the solid line) and the retreat position (the position of the two-dot chain line in FIG. 14) spaced apart from the upper position in the left-right direction. And a third actuator for moving the chuck between them. Then, the chuck moves along the left-right direction to the upper position of the mounting position with respect to the seat frame 100 held on the installation table 20, and further, the chuck lowers to release the accelerometer 62, thereby releasing the seat frame 100. Attached to.
Further, when the accelerometer 62 is removed and collected, the accelerometer 62 can be gripped by moving the chuck to the mounting position again to be in a gripping state. Then, the chuck moves to the retracted position via the upper position, and the accelerometer 62 is recovered.

As shown in FIGS. 14 and 15, the measurement unit attaching / detaching mechanism 43 includes a chuck for gripping the accelerometer 63, a first actuator for switching between gripping and releasing, and an attachment position (upper surface of the seat frame 140: FIG. 14). A second actuator that raises or lowers the chuck from the position of the solid line), an upper position of the mounting position, and a retracted position spaced apart from the seat frame 100 in the left-right direction with respect to the upper position (two points in FIG. 14) And a third actuator for moving the chuck between the position of the chain line). Then, the chuck moves along the left-right direction to the upper position of the mounting position with respect to the seat frame 100 held on the installation table 20, and further, the chuck lowers to release the accelerometer 63, thereby releasing the seat frame 100. Attached to.
Further, when the accelerometer 63 is removed and collected, the accelerometer 63 can be gripped by moving the chuck to the mounting position again to be in a gripping state. Then, the chuck moves to the retracted position via the upper position, and the accelerometer 63 is recovered.

[Ammeter]
FIG. 16 is a block diagram showing a control system of the seat frame inspection apparatus 10.
As shown in the figure, the operation of the reclining motor 161, the slide motor 171, the height motor 181 and the tilt motor 191 of the seat frame 100 is controlled by a control device 90 via a drive circuit 91 that controls the energization current to each motor. The
The drive circuit 91 includes ammeters 911, 912, 913, and 914 that detect actual currents flowing through the reclining motor 161, the slide motor 171, the height motor 181 and the tilt motor 191. Input to the controller 90.

[Control system for seat frame inspection equipment]
As shown in FIG. 16, the control device 90 is connected to a reclining motor 161, a slide motor 171, a height motor 181, and a tilt motor 191 of the seat frame 100 via a drive circuit 91, and issues an operation command for operating them. It functions as an operating part that outputs. A manually connected harness 92 is interposed between the drive circuit 91 and the motors 161 to 191. The harness 92 is connected when the seat frame 100 is installed in the seat frame inspection apparatus 10.

Further, the control device 90 is connected to the above-described angular displacement meter 51, displacement meters 53 to 55, accelerometers 60 to 63, and noise meters 57 and 58, and a reclining mechanism 160, a slide mechanism 170, a height mechanism 180, and a tilt mechanism. The angular displacement resulting from the operation of 190, the linear displacement, the acceleration due to the operation of each part, and the detection signal of the operation sound of each part are input.
The detected current values of the motors 161, 171, 181 and 191 are input from the ammeters 911 to 914 via the harness 92.

Further, the control device 90 includes the actuators of the measurement unit attaching / detaching mechanisms 40 to 43, the transport mechanism 333 and the lifting mechanism 334 of the weight attaching / detaching mechanism 33, the installation table moving mechanism 24 of the installation table 20, and the first holding air. A cylinder 25 and a second holding air cylinder 26 are connected.
For example, an air cylinder is used as the actuator of the measurement unit attaching / detaching mechanisms 40 to 43. Strictly speaking, each air cylinder connected to the control device 90 is controlled via an electromagnetic valve that supplies air pressure, but illustration thereof is omitted.

  The control device 90 is an operation control program for performing various operation controls associated with execution of the inspection of the seat frame 100 with respect to various mechanisms or devices connected to the control device 90, and various types of devices connected to the control device 90. A data memory storing a processing program as a determination unit for determining pass / fail in various inspection items of the seat frame 100 based on detection signals of the detection device, setting data of each unit required for the determination process, and execution of the program A working memory serving as a region, a processing processor for executing a program, and the like are provided, and control and processing described below are executed.

[Operation and processing of seat frame inspection apparatus]
FIG. 17 is a flowchart showing all steps of the inspection of the seat frame 100 by the control device 90.
First, as a preparation process, an operator performs an operation of attaching the seat frame 100 to the installation table 20 (step S1).
That is, the leg 173 and the slide rails 172 and 172 of the seat frame 100 to be inspected are positioned at predetermined positions with respect to the first and second jigs 22 and 23 on the upper surface of the substrate 21 of the installation table 20. To place.
The substrate 21 is previously positioned at the inspection position by the installation table moving mechanism 24.

Next, the operator connects the seat frame inspection apparatus 10 and the harness 92 of the seat frame 100 (step S3).
As a result, the motors 161 to 191 of the seat frame 100 are under the control of the control device 90.

Next, when an instruction to start inspection is input from the input device 98 by the operator (step S5), the control device 90 operates the first and second holding air cylinders 25 and 26 of the installation table 20. The seat frame 100 is held by these plungers.
Further, the control device 90 controls the transport mechanism 333 and the lifting mechanism 334 of the weight attaching / detaching mechanism 33 so that the first and second weights 31 and 32 are moved between the seat back frame 120 and the pair of cushion side frames 130 and 130. Then, the weights 31 and 32 are mounted on the seat frame 100 by releasing the clamp (step S7).
Further, the control device 90 controls the actuators of the measurement unit attaching / detaching mechanisms 40 to 43 to convey the accelerometers 60 to 63 to a predetermined attachment position and release the chuck for attachment.

Next, the control device 90 performs various inspections while operating the reclining mechanism 160 and the slide mechanism 170 in parallel with each other (step S9).
When the inspection of the reclining mechanism 160 and the slide mechanism 170 is completed, the control device 90 performs various inspections while operating the height mechanism 180 (step S11). Various inspections are executed while operating the mechanism 190 (step S13).

Here, operation control and processing at the time of inspection of the reclining mechanism 160, the slide mechanism 170, the height mechanism 180, and the tilt mechanism 190 will be described in detail with reference to the flowchart of FIG.
In addition, since the operation | movement at the time of a test | inspection of each mechanism 160-190 and the basic process of a process are common, it demonstrates by sharing the flowchart of FIG.

<Corresponding to Step S9 in FIG. 17>
First, in the case of the reclining mechanism 160, the control device 90 controls the driving of the reclining motor 161, and the tilting operation of the seat back frame 120 from the state at the last tilt position within the movable range to the most forward tilt position is performed. The tilting operation for returning to the last tilt position is continuously executed (step S31).
In the meantime, detection data is acquired from detection signals of the angular displacement meter 51, the accelerometer 60, and the ammeter 911 (step S33). For example, these detection data are values of angular displacement, acceleration, and current obtained at minute sampling intervals.
When the tilting operation of the seat back frame 120 is completed (step S35), the control device 90 determines the entire range from the most forward tilt position to the last tilt position from the detection data of the operating angle obtained from the angle displacement meter 51 during the operation. Operating angle (operating range), synchronization deviation at the time of operation, operating speed at the time of tilting forward and backward, operating current at the time of operation of the reclining motor 161, operating vibration generated in the seat back frame 120 at the time of operation Obtain (step S37).

The “operation angle (operation range)” can be obtained from the detected values of the angle displacement meter 51 at the most forward tilt position and the last tilt position.
The “synchronization deviation during operation” can be obtained from the difference between the command value of the tilting operation from the control device 90 and the actual detection value of the angular displacement meter 51 for each time. For example, the difference may be obtained at each sampling interval, and the total value of these may be used as the synchronization shift.
The “operation speed when tilting forward and tilting backward” can be obtained from the change per unit time of the detected value of the angular displacement meter 51 when tilting forward and tilting backward. Here, the average value of the operation speed during each tilting operation is acquired.
The “operation current” is a total value of detection values obtained at every sampling interval of the ammeter 911.
The “operation vibration” acquires the maximum value of the detected acceleration value of the accelerometer 60 in operation.

<Corresponding to Step S9 in FIG. 17>
In the case of the slide mechanism 170, the control device 90 controls the drive of the slide motor 171 to tilt the base frame 150 from the most retracted position to the most advanced position within the movable range, and again with the last retract. The tilting operation to return to the position is continuously executed (step S31).
In the meantime, detection data is acquired from detection signals of the displacement meter 53, the accelerometer 61, the ammeter 912, and the sound level meter 57 (step S33). For example, these detection data are values of displacement, acceleration, current, and sound pressure level obtained at every minute sampling interval.
When the back-and-forth movement operation of the base frame 150 ends (step S35), the control device 90 covers the entire range from the most advanced position to the last retracted position from the detection data of the operation stroke obtained from the displacement meter 53 during the operation. Operation stroke (operation range), synchronization deviation during operation, operation speed when moving forward and backward, operation current during operation of the slide motor 171, operation sound generated in the transmission mechanism 174 during operation, generated in the cushion side frame 130 during operation The operating vibration and the shocking vibration at the time of forward / backward movement switching are acquired (step S37).

The “operation stroke (operation range)” can be obtained from the detected values of the displacement meter 53 at the most advanced position and the most retracted position.
The “synchronization deviation at the time of operation” can be obtained from the difference between the command value of the slide movement operation from the control device 90 and the actual detection value of the displacement meter 53 for each time. For example, the difference may be obtained at each sampling interval, and the total value of these may be used as the synchronization shift.
The above-mentioned “operation speed at the time of forward and backward movement” can be obtained from the change per unit time of the detection value of the displacement meter 53 at the time of forward movement and backward movement. Here, the average value of the operation speed during each moving operation is acquired.
The “operation current” is a total value of detection values obtained at every sampling interval of the ammeter 912.
As the “operating sound”, the maximum value of the detected value of the sound level meter 57 in operation is acquired.
As the “operation vibration”, the maximum value of the detected acceleration value of the operating accelerometer 61 excluding the time of forward / backward movement switching is acquired.
For the “impact vibration”, the acceleration value of the accelerometer 61 at the time of forward / backward movement switching is acquired.

<Corresponding to Step S11 in FIG. 17>
In the case of the height mechanism 180, the control device 90 controls the driving of the height motor 181 to raise the pair of cushion side frames 130, 130 from the lowest position to the highest position within the movable range. The descending operation for returning to the lowest position is continuously executed (step S31).
In the meantime, detection data is acquired from detection signals of the displacement meter 54, the accelerometer 62, the ammeter 913, and the sound level meter 58 (step S33). For example, these detection data are values of displacement, acceleration, current, and sound pressure level obtained at every minute sampling interval.
When the raising / lowering operation of the cushion side frames 130, 130 is completed (step S35), the control device 90 covers the entire range from the lowest position to the highest position based on the detection data of the operation stroke obtained from the displacement meter 54 during the operation. Operation stroke (operation range), synchronization deviation at the time of operation, operation speed at the time of ascent and descent, operation current at the time of operation of the height motor 181, operation sound generated in the height mechanism 180 at the time of operation, cushion side frame 130 at the time of descent Vibrations generated at the time of reaching the bottom dead center when descending (step S37).

The “operation stroke (operation range)” can be obtained from the detection values of the displacement meter 54 at the lowest position and the highest position.
The “synchronization shift at the time of operation” can be obtained from the difference between the command value of the lifting operation from the control device 90 and the actual detection value of the displacement meter 54 for each time. For example, the difference may be obtained at each sampling interval, and the total value of these may be used as the synchronization shift.
The “respective operating speeds at the time of ascent and descent” can be obtained from the change per unit time of the detected value of the displacement meter 54 at the time of ascent and descent. Here, the average value of the operation speed during each moving operation is acquired.
The “operation current” is a total value of detection values obtained at every sampling interval of the ammeter 913.
As the “operation sound”, the maximum value of the detection value of the sound level meter 58 in operation is acquired.
The above “operation vibration” acquires the maximum value of the detected acceleration value of the operating accelerometer 62 except when the bottom dead center is reached.
For the “impact vibration”, the acceleration value of the accelerometer 62 when the bottom dead center is reached is acquired.

<Corresponding to Step S13 in FIG. 17>
In the case of the tilt mechanism 190, the control device 90 controls the drive of the tilt motor 191 to raise the seat frame 140 from the lowest position in the movable range to the highest position and again to the lowest position. The returning descent operation is continuously executed (step S31).
In the meantime, detection data is acquired from detection signals of the displacement meter 55, the accelerometer 63, and the ammeter 914 (step S33). For example, these detection data are values of displacement, acceleration, and current obtained at minute sampling intervals.
When the lifting / lowering operation of the seat frame 140 is completed (step S35), the control device 90 operates the entire stroke from the lowest position to the highest position from the detection data of the working stroke obtained from the displacement meter 55 during the operation. (Operating range), Synchronous deviation at the time of operation, operating speed at the time of ascent and descent, operating current at the time of operation of the tilt motor 191, operating sound generated in the tilt mechanism 190 at the time of operation, generated in the cushion side frame 130 at the time of lowering The operating vibration and the shocking vibration when reaching the bottom dead center when descending are acquired (step S37).

The “operation stroke (operation range)” can be obtained from the detection values of the displacement meter 55 at the lowest position and the highest position.
The “synchronization deviation at the time of operation” can be obtained from the difference between the command value for the lifting operation from the control device 90 and the actual detection value of the displacement meter 55 for each time. For example, the difference may be obtained at each sampling interval, and the total value of these may be used as the synchronization shift.
The above-mentioned “respective operating speeds during ascent and descent” can be obtained from changes per unit time in the detected value of the displacement meter 55 during ascent and descent. Here, the average value of the operation speed during each moving operation is acquired.
The “operating current” is a total value of detection values obtained at every sampling interval of the ammeter 914.
For the “impact vibration”, the acceleration value of the accelerometer 63 when the bottom dead center is reached is acquired.

As described above, when all the detection data is acquired for the predetermined inspection items for each of the mechanisms 160 to 190, the control device 90 determines pass / fail for each of the mechanisms 160 to 190 of the seat frame 100 (step S15 in FIG. 17). ).
In the above determination, appropriate numerical ranges are set in advance for various inspection items, and the control device 90 determines whether or not the detection values of the various inspection items are within the appropriate numerical ranges.

And the control apparatus 90 displays correctness about all the inspection items about each mechanism 160-190 by the display apparatus 99 (step S17).
Then, the weight attaching / detaching mechanism 33 removes and collects the first and second weights 31 and 32 from the seat frame 100, and each measuring unit attaching / detaching mechanism 40 to 43 removes and collects each accelerometer 60 to 63 from the seat frame 100. Then, the substrate 21 of the installation table 20 is moved to the retracted position by the installation table moving mechanism 24 (step S19). In the retracted position, the control device 90 operates the first and second holding air cylinders 25 and 26 of the installation table 20 to retract these plungers and release the holding of the seat frame 100.
Then, the operator cuts the harness 92, unloads the seat frame 100 from the installation table 20, and ends the inspection.

[Technical effects of the embodiment of the invention]
The seat frame inspection apparatus 10 includes a plurality of measurement units that respectively measure a plurality of inspection items related to operations with respect to each of the reclining mechanism 160, the slide mechanism 170, the height mechanism 180, and the tilt mechanism 190 of the seat frame 100. An angular displacement meter 51, displacement meters 53 to 55, noise meters 57 and 58, accelerometers 60 to 63, and ammeters 911 to 914 are provided.
Therefore, more inspection items can be inspected for the plurality of movable parts of the seat frame 100, and a more detailed inspection can be performed in a wider range.
As a result, the problem of performing a more detailed inspection in a wider range can be solved.

In addition, the seat frame inspection apparatus 10 includes the measurement unit attaching / detaching mechanisms 40 to 43 for attaching and detaching the plurality of accelerometers 60 to 63 as the measurement units to the seat frame 100 installed on the installation table 20. While reducing the work burden of the total 60-63 attachment work, it is possible to speed up the work by automation.
Further, since the measuring unit attaching / detaching mechanisms 40 to 43 are attached to the accelerometers 60 to 63, the measurement can be always attached at a fixed position, unlike the case of manual work, thereby preventing variation such as manual work and more accurate. Inspection can be performed.
Thereby, the subject of performing a more accurate test | inspection can be solved.

Further, since the seat frame inspection apparatus 10 includes first and second weights 31 and 32 that can be attached to and detached from the seat frame 100, the first and second weights 31 and 32 are used to virtually add humans. Makes it possible to perform a test in a state close to the use state.
Thereby, the subject of performing the inspection in a state closer to the use state can be solved.

In the seat frame inspection apparatus 10, the first weight 31 is disposed to face the seat back frame 120 of the seat frame 100, and the second weight 32 is disposed to face the seat frame 140. It is possible to disperse the load to the seat frame so that the person can sit closer to the seat frame and to perform an inspection in a state close to the use state.
Thereby, the subject of performing the inspection in a state closer to the use state can be solved.

Further, since the seat frame inspection apparatus 10 is provided with the angle displacement meter 51 on the first weight 31, the mounting of the angle displacement meter 51 is completed by attaching the first weight 31 to the seat frame 100, and the attaching work It becomes possible to reduce the burden.
Thereby, the subject of reducing the work burden can be solved.

In the seat frame inspection apparatus 10, since the first weight 31 has a swing restricting portion, the swing is suppressed when the first weight 31 is attached to the seat frame 100, and the angle of the angle displacement meter 51 is adjusted. It is possible to suppress the influence on measurement and perform more accurate measurement.
Thereby, the subject of performing a more accurate measurement can be solved.

In addition, the control device 90 of the seat frame inspection apparatus 10 causes the reclining mechanism 160 and the slide mechanism 170 to operate in parallel at the time of inspection, which is compared with the case where the inspection is performed by operating them in order. Thus, the inspection time can be shortened.
Thereby, the subject of shortening inspection time can be solved.

Further, in the seat frame inspection apparatus 10, the control device 90 executes the operations of the reclining mechanism 160 and the slide mechanism 170 in parallel with each other, and the reclining mechanism 160 measures vibration during operation as an inspection item. An accelerometer 60 is provided as a measurement unit, and the accelerometer 60 measures vibrations in a direction (substantially vertical direction) different from the operation direction (front-rear direction) of the slide mechanism 170. For this reason, when vibration is measured for the reclining mechanism 160, it is possible to reduce the influence of the sliding operation of the sliding mechanism 170 that operates in different directions, and to perform quick and highly accurate measurement.
Thereby, the subject of performing a quick and highly accurate measurement can be solved.

In the seat frame inspection apparatus 10, since the control device 90 executes the operations of the reclining mechanism 160 and the slide mechanism 170 in parallel with each other, both of the operation strokes in the seat frame 100 are long and the operation time is long. The long movable part can be inspected in parallel with the same period, and the effect of further shortening the inspection time can be obtained.
Thereby, the subject of shortening inspection time can be solved.

Further, in the seat frame inspection apparatus 10, the control device 90 executes the operations of the height mechanism 180 and the tilt mechanism 190 with respect to the operation of the slide mechanism 170 so as not to overlap with each other. The measurement of the tilt mechanism 190 can be performed more accurately without being affected by the slide movement.
Thereby, the subject of measuring accurately can be solved.

Further, the seat frame inspection apparatus 10 starts and ends the operation of the slide mechanism 170 at the same time as the operation of the reclining mechanism 160 having the longest operation time among the movable parts. Shortening can be realized more efficiently.
Thereby, the subject of shortening inspection time can be solved.

Further, the seat frame inspection apparatus 10 includes a reclining mechanism 160, a slide mechanism 170, a height mechanism 180, and a tilt mechanism 190 including a reclining motor 161, a slide motor 171, a height motor 181, and a tilt motor 191, and their current values. Is measured by the ammeters 911 to 914, so that it is possible to inspect the quality and abnormality of the motor mounted on the seat frame 100.
Thereby, the subject of wanting to test | inspect also about the motor mounted in the seat frame 100 can be solved.

[Others]
The seat frame 100 includes a reclining mechanism 160, a slide mechanism 170, a height mechanism 180, and a tilt mechanism 190 as movable parts to be measured, and a reclining motor 161, a slide motor 171, a height motor 181, and a tilt motor 191 as drive sources. Although provided, all or a part of this may be configured to be manually operated without a drive source.
In that case, it is desirable to provide a drive source for operating the mechanisms 160 to 190 on the seat frame inspection apparatus side, and to operate the mechanisms 160 to 190 by these drive sources at the time of inspection.

  Further, the case where the inspection is performed by performing the operations of the reclining mechanism 160 and the slide mechanism 170 in parallel is illustrated. However, if the operation directions of the respective movable parts do not interfere with the acceleration detection direction of the accelerometer, the reclining mechanism 160 is used. The operations of two or more of the slide mechanism 170, the height mechanism 180, and the tilt mechanism 190 may be performed in parallel.

Further, the seat frame 100 of the present embodiment includes the reclining mechanism 160, the slide mechanism 170, the height mechanism 180, and the tilt mechanism 190 as movable parts, but there are also seat frames that do not include the height mechanism 180 and the tilt mechanism 190. is there. When such a seat frame is an object to be inspected, the seat frame inspecting apparatus may be configured not to include various measuring units for the height mechanism 180 or the tilt mechanism 190.
In the seat frame inspection apparatus 10 described above, the measurement unit for each mechanism 160, 170, 180, 190 can be switched between execution and non-execution, and the measurement unit for each mechanism 160, 170, 180, 190 is switched. The presence / absence of execution of the mounting operation and the presence / absence of detection and determination processing may be switchable. As a result, it is possible to inspect even a seat frame that does not have some movable parts.

Moreover, although the case where the installation to the installation stand 20 of the seat frame 100 was performed manually was illustrated, not only this but the conveyor mechanism which conveys the seat frame 100 to the installation stand 20, for example is provided, and the installation stand of the seat frame 100 is provided. Installation to 20 may be performed automatically.
Moreover, it is good also as a structure which has the connection mechanism which determines the position of the harness of the seat frame 100 and the seat frame test | inspection apparatus 10 to a regulation position, and also connects the harness 92 automatically.

  In addition, although the operation sound of the reclining mechanism 160 and the tilt mechanism 190 is not measured, a noise meter as a measuring unit is provided in the vicinity of the reclining motor 161, the tilt motor 191 or their transmission mechanism to measure the operation sound. You can go.

DESCRIPTION OF SYMBOLS 10 Seat frame inspection apparatus 20 Installation stand 22,23 Jig 24 Installation stand moving mechanism 31 1st weight 32 2nd weight 33 Weight attaching / detaching mechanism 40-43 Measuring part attaching / detaching mechanism 51 Angular displacement meter (measuring part)
53-55 Displacement meter (measurement unit)
57,58 Sound level meter (measurement unit)
60-63 Accelerometer (measurement unit)
90 Control device (actuating part)
91 Drive circuit 911-914 Ammeter (measurement part)
92 Harness 100 Seat frame 120 Seat back frame 130 Cushion side frame 140 Seat frame 160 Reclining mechanism (first movable part)
161 Reclining motor 170 Slide mechanism (second movable part)
171 Slide motor 180 Height mechanism (movable part)
181 Height motor 190 Tilt mechanism (movable part)
191 Tilt motor 911-914 Ammeter

Claims (10)

In a seat frame inspection apparatus that performs an inspection related to the operation of the movable portion with respect to a seat frame including at least two movable portions,
An installation base for mounting the seat frame;
An operation unit that outputs an operation command for operating at least two of the movable units of a seat frame installed on the installation table;
For each of the two or more movable parts operated by the actuating part, comprising a plurality of measurement parts for measuring each of a plurality of inspection items related to the operation ,
A seat frame inspection apparatus comprising: a first weight that is disposed to face the seat back frame of the seat frame and has a latching hook portion that latches to the seat back frame . The seat frame inspection according to claim 1 , wherein the locking hook portion of the first weight serves as a swing restricting portion that restricts swinging of the lower end portion of the first weight when the hook portion is disposed on the seat frame. apparatus. A measuring unit attaching / detaching mechanism for attaching / detaching one or more measuring units to / from a seat frame installed on the installation table;
The first weight disposed to face the seat back frame of the seat frame, and the second weight disposed to face the seat frame,
The seat frame inspection device according to claim 1 or 2, wherein the first weight and the second weight are detachable from the seat frame. The seat frame inspection apparatus according to any one of claims 1 to 3 , wherein the measuring unit is provided on the weight. The seat frame inspection device according to any one of claims 1 to 4 , wherein the operation unit causes the two or more movable units to perform operations in parallel. The operating unit performs the operations of the first movable unit and the second movable unit among the two or more movable units in parallel,
About the first movable part, as the inspection item, comprising a measurement part for measuring vibration during operation,
The seat frame inspection apparatus according to claim 5 , wherein the measurement unit measures vibration in a direction different from an operation direction of the second movable unit. 7. The seat frame according to claim 6, wherein the first movable part is a reclining mechanism for rotating the seat back frame, and the second movable part is a slide mechanism for sliding the cushion side frame back and forth. Inspection device. The seat frame includes, as the two or more movable parts, a slide mechanism that slides the cushion side frame back and forth, a height mechanism that raises and lowers the cushion side frame, and a tilt mechanism that rotates the seat frame.
The actuating unit, the relative operation of the slide mechanism, the height mechanism and any one of the claims 5, characterized in that timing to overlap the operation of the tilt mechanism is performed so as not to cause 7 The seat frame inspection device described in 1. The actuating part, claim 5, characterized in that to terminate operation of the start and and previous other moving parts since the start of the operation of the most operating time is long movable portion in said two or more movable portions The seat frame inspection apparatus according to any one of claims 8 to 9 . At least one or more of the movable parts of the seat frame includes a motor as a drive source,
The seat frame inspection apparatus according to any one of claims 1 to 9 , further comprising a measurement unit that detects a current of the motor as the inspection item.

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