WO2017073192A1

WO2017073192A1 - Roof carrier attachment condition detection system

Info

Publication number: WO2017073192A1
Application number: PCT/JP2016/077021
Authority: WO
Inventors: 誓二宮城; 大輔木坂; 勝徳田; 涼介中野
Original assignee: 株式会社カーメイト
Priority date: 2015-10-27
Filing date: 2016-09-13
Publication date: 2017-05-04
Also published as: JP2017081402A

Abstract

[Problem] To provide a roof carrier attachment-state detection system by which the attachment-state of the roof carrier during driving, including loosening of bolts over time, can be ascertained. [Solution] To solve the foregoing problem, a roof carrier attachment-state detection system is characterized by comprising: a roof carrier main unit 12; detection means 18, 26 capable of detecting at least one load applied to feet 14 and fastening bolts 28 of the roof carrier main unit 12; and a reporting means 44 for providing a report on the basis of measured values from the detection means 18, 26.

Description

Roof carrier mounting state detection system

The present invention particularly relates to a roof carrier mounting state detection system.

Problems that arise when attaching the roof carrier are misalignment or dropping while the vehicle is running. One of the causes of such a problem is that the roof carrier is not properly attached to the roof of the vehicle. *

Such a problem often arises from the instability of the tightening state of the tightening bolt when the roof carrier is attached to the roof carrier. That is, when the tightening with the tightening bolt is weak, there is a possibility that the foot rattles, causing the above-described displacement and dropping. On the other hand, when the tightening with the tightening bolt is too strong, the tightening portion or the roof may be damaged. *

From this point of view, Patent Document 1 discloses a technique that makes it possible to ascertain whether or not the tightening torque by the tightening bolt is within an appropriate range. The technique disclosed in Patent Document 1 includes a tightening torque adjusting portion between a bolt body and a bolt head of a tightening bolt, and the tightening force becomes a specified torque. In this case, the bolt head is idle.

Japanese Patent No. 5544377

By adopting the technique disclosed in Patent Document 1, it is considered that the roof carrier can be attached with an appropriate tightening torque. However, the technology disclosed in Patent Document 1 can be managed only at the time of tightening. For this reason, it has been impossible to grasp state changes such as bolt loosening over time, loosening due to vibration during traveling, and changes due to load bias during traveling. *

Therefore, in view of the above-described problems of the prior art, an object of the present invention is to provide a roof carrier attachment state detection system capable of grasping the attachment state during traveling including the loosening of bolts over time.

A roof carrier mounting state detection system as a first means for solving the above-mentioned problem is to fix a roof carrier main body, a vertical load applied to the foot of the roof carrier main body, and the foot and a fixing bracket constituting the foot. A load applied to a tightening bolt, a load applied to a contact surface of a fixing bracket constituting the foot and a roof for fixing the foot, and a carrier bar constituting the roof carrier body and an accessory fixed to the carrier bar. A first detection unit capable of detecting at least one of the loads applied to the contact surface, and a notification unit for reporting based on a measurement value of the first detection unit. *

Further, the roof carrier attachment state detection system as the second means is the first roof carrier attachment state detection system, wherein the first detection means includes at least the foot of the roof carrier body and the fixing bracket. The load applied to at least one of the foot and the fixture is detectable. *

The roof carrier attachment state detection system as a third means is the second roof carrier attachment state detection system, wherein the first detection means is a surface parallel to the attachment surfaces of the foot and the fixing bracket. It is characterized in that a plurality of them are arranged inside. *

The roof carrier attachment state detection system as a fourth means is the first roof carrier attachment state detection system, wherein the first detection means is a fastening means for fixing the foot of the roof carrier body to the roof. It is provided on the bolt and can detect the axial force acting on the tightening bolt. *

The roof carrier attachment state detection system as the fifth means is the fourth roof carrier attachment state detection system, wherein the first detection means includes at least one sensor element between a pair of washers. The pressure sensor includes a pressure dispersion member. *

The roof carrier attachment state detection system as a sixth means is the roof carrier attachment state detection system according to any one of the first to fifth roof carriers, wherein the roof carrier body includes the first detection means. A storage unit that stores a measured value and a set value of a load applied to the foot and the tightening bolt, and a load of a load applied to the foot and the tightening bolt of the roof carrier based on the measured value and the set value. Control means having a calculation unit for determining a state and a communication unit for transmitting a determination result of the calculation unit to the notification unit is provided. *

The roof carrier mounting state detection system as a seventh means is the roof carrier mounting state detection system according to any one of the first to fifth roof carriers, wherein the notification means can acquire information of the detection means. A communication unit, a storage unit that stores a set value of a load applied to a load detection location by the first detection unit, a measurement value of the detection unit, and the first detection unit based on the set value of the storage unit It is a portable terminal provided with the calculating part which determines the state of the load concerning the load detection location by and the display part which displays the determination result of the said calculating part. *

Further, the roof carrier mounting state detection system as the eighth means is the seventh roof carrier mounting state detection system, wherein the set value of the load applied to the load detection point by the first detection means is stored in the external storage unit. A function of reading the set value of the load applied to the load detection location by the first detection means stored in the external storage unit by communication with the external storage unit via the communication unit. It is characterized by having. *

The roof carrier mounting state detection system as the ninth means is the roof carrier mounting state detection system according to any one of the first to eighth roofs, wherein the control means is the first detection means, When measuring at least one of the vertical load applied to the foot and the load applied to the contact surface between the carrier bar constituting the roof carrier body and the accessory fixed to the carrier bar, Based on the above, it has a function of calculating the load of the load loaded on the roof carrier body. *

Furthermore, the roof carrier mounting state detection system as the tenth means is the roof carrier mounting state detection system according to any one of the first to eighth roof carriers, wherein the foot is spanned between the paired feet. A second detection means for measuring at least one of the length of the carrier bar and the arrangement interval of the carrier bars forming a pair arranged in the front-rear direction of the vehicle is provided. .

According to the first means, it is possible to grasp the mounting state during traveling including the loosening of the bolt over time. *

According to the second means, it is possible to detect the balance of loads applied to the roof carrier body, that is, the load balance. In addition, it is possible to prevent the roof from being deformed due to the uneven load. *

According to the third means, it is possible to detect the load balance with respect to the foot alone. Even if the load balance is shifted, it is possible to know an accurate load from the total of sensor values. *

According to the fourth means, it is possible to detect whether the foot is properly tightened. Further, since the axial force is detected, it is possible to detect not only the torque at the time of tightening but also the tightening state during traveling. *

According to the fifth means, the axial force of the tightening bolt can be detected. *

According to the sixth means, the notification means can be simplified. *

According to the seventh means, the control means provided in the roof carrier body can be simplified, and the power consumption can be reduced. *

According to the eighth means, it is possible to easily update the database in which the set values are collected, and it is possible to appropriately cope with the new model. *

According to the ninth means, it is possible to determine the suitability of the mounting state including the state of the load loaded on the roof carrier. *

According to the tenth means, the suitability of the mounting state of the roof carrier including the mounting length and mounting interval of the carrier bar can be improved.

It is a figure which shows the external appearance structure of the roof carrier which concerns on embodiment. It is a figure which shows the system configuration | structure of the roof carrier which concerns on embodiment. It is a figure which shows the attachment state of the foot in a roof carrier main body. It is a figure which shows the example of arrangement | positioning of the detection means arrange | positioned at the foot bottom face. It is a figure for demonstrating the structure of the detection means arrange | positioned at the foot bottom face. It is a figure for demonstrating the structure in the case of arrange | positioning a detection means to a clamping bolt. It is a figure which shows the example of arrangement | positioning of the detection means on a washer. It is an example of the alerting | reporting screen at the time of making an alerting | reporting means into a smart phone. It is a figure which shows the structural example at the time of providing a 1st detection means in the contact surface of a carrier bar and an accessory. It is a figure which shows the structure at the time of providing a 1st detection means in the contact surface of the fixing bracket for fixing a roof and a foot. It is a figure which shows the structural example at the time of providing a 1st detection means in the clamping bolt for fixing an accessory to a carrier bar.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments according to a roof carrier mounting state detection system of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the roof carrier mounting state detection system (hereinafter simply referred to as detection system 10) according to the present embodiment is configured on the basis of a roof carrier body 12 and a notification means 44. *

The roof carrier body 12 may have a general configuration. As shown in FIG. 1, the roof carrier main body 12 is formed between four feet 14 fixed to the roof 50 and a pair of feet 14 fixed to both sides of the roof 50. It is comprised on the basis of the carrier bar 16 hung over. And accessories, such as a roof box (not shown), are fixed and used with respect to the carrier bar 16 arrange | positioned before and behind the vehicle. *

The roof carrier body 12 having such a basic configuration is provided with detection means 18 and 26 for detecting a load. The detection means 18 and 26 (first detection means) are provided on at least one of the foot 14 constituting the roof carrier body 12 and the fastening bolt 28 for fixing the foot 14 to the roof 50. *

For example, when the detection means 18 is provided on the foot 14, the detection means 18 capable of detecting a vertical load is provided on each of the four feet 14. This is because the load state (loading balance) applied to the roof carrier body 12 can be detected by adopting such a configuration. *

Further, as shown in FIG. 4, it is desirable that a plurality of detection means 18 provided on each foot 14 be arranged in the same plane. This is because it is possible to detect what kind of load is applied to the foot 14 alone in the attached state to the roof 50 by adopting such a configuration. Even if the load balance is shifted, it is possible to know an accurate load from the total of sensor values. *

For example, the detection means 18 may be attached as follows. That is, as shown in FIG. 5, the attachment is made through the first hard layer 20 provided on the bottom surface of the foot 14, the pressure dispersion member 22, and the second hard layer 24. The first hard layer 20 is a layer located on the bottom surface of the foot 14, and may be a metal layer, for example. The detection means 18 is disposed on the first hard layer 20. *

The detection means 18 may be a sheet type pressure sensor or the like that can detect the pressure applied to the main surface (circular in FIG. 4) as an electrical signal. The detection means 18 defines an area for detecting the applied pressure, and a plurality (six in the example shown in FIG. 4) are arranged on the same surface of the first hard layer 20.

The pressure dispersion member 22 is an element for preventing the pressure from being applied only to the specific detection means 18 due to unevenness or inclination of the first hard layer 20 and the second hard layer 24 sandwiching the detection means 18. It is. The pressure dispersion member 22 is preferably an elastic member containing a resin such as rubber (elastomer), silicon, or urethane. Further, the pressure dispersion member 22 may be configured to be divided for each detection area set in units of the detection means 18. This is because with such a configuration, it is possible to detect the pressure applied to each area that is the detection range of each detection means 18. The second hard layer 24 is a member disposed so as to sandwich the detection means 18 and the pressure dispersion member 22 between the first hard layer 20 and, for example, a metal plate similar to the first hard layer 20 or the like. can do. *

A recent roof carrier is configured such that a large load is applied to the edge portion of the roof 50 as shown in FIG. For this reason, it is good to set it as the structure which arrange | positions the detection means 18 in multiple numbers on the plane of the site | part enclosed with the broken line in FIG. A protective member 52 for preventing the roof 50 from being scratched is provided between the roof 50 and the second hard layer 24. *

Further, when the detection means 26 is attached to the tightening bolt 28, it is preferable that the axial force of the tightening bolt 28 can be detected. This is because it is possible to detect a tightening state during traveling that cannot be detected by detecting torque at the time of tightening and to detect loosening of tightening over time by adopting a configuration that detects axial force. *

Even when detecting the axial force of the tightening bolt 28, if the strain bolt is embedded by processing the tightening bolt 28 itself, the tightening bolt 28 itself becomes expensive and the structure becomes large. There is a concern that For this reason, in the present embodiment, the detecting means 26 is arranged as follows, so that the axial force of the tightening bolt 28 can be detected without processing the tightening bolt 28 itself. *

As shown in FIG. 3, a general foot 14 has a foot main body 14a and a fixing bracket 14b for fixing the foot main body 14a. In order to fasten the fixing metal 14b and the foot main body 14a, A tightening bolt 28 is used. A cover 14c is provided as necessary. For this reason, the detection means 26 is arranged in the washer 30 arranged between the member to be tightened (fixing bracket 14b in the example shown in FIG. 3) and the bolt head 28a of the tightening bolt 28. Specifically, two washers (first washer 30a and second washer 30b) made of a hard member (for example, metal), and pressure distribution disposed between the first washer 30a and the second washer 30b. A member 32 is provided. The detection means 26 is arranged between the first washer 30a and the pressure dispersion member 32. *

Here, the detection means 26 may be a sheet-type pressure sensor capable of detecting the pressure applied to the main surface, similarly to the detection means 18 disposed on the bottom surface of the foot 14 described above. Moreover, in this embodiment, the detection means 26 stuck on the 1st washer 30a is made into multiple (2 in the example shown in FIG. 7). By adopting such a configuration, the detection means 26 is arranged along the main surface of the washer 30. Therefore, even when a load is applied to the opposite side with the fastening bolt 28 as a base point, the detection means 26 itself It is possible to avoid that the pressure applied to the pressure is lost. *

In the present embodiment, as shown in FIG. 7, the two detection means 26 are arranged so as to be positioned on a straight line passing through the center of the first washer 30a. With such a configuration, the load at the time of tightening can be detected by providing the pressure dispersion member 32 even when the load is uneven due to a change in the angle of the tightening bolt 28. In addition, when the detection means 26 is O-shaped so as to surround the center hole of the first washer 30a, the detection means 26 may be a single body. In addition, when three or more detection means 26 are arranged, it is preferable to arrange them uniformly in consideration of the balance of pressure applied to each detection means 26. *

The roof carrier foot main body 14a according to the present embodiment includes a detection means 34 (second detection means) for detecting the length of the carrier bar 16. As shown in FIG. 1, the carrier bar of the roof carrier is stretched between the feet 14 fixed on the roof 50 located on the left and right of the vehicle. For this reason, the detection means 34 for detecting the length of the carrier bar 16 is preferably provided at a portion facing the paired feet 14. In the example shown in FIG. 3, the carrier bar 16 is not supported by the foot main body 14 a, that is, provided at the tip of the foot main body 14 a. Here, the detection unit 34 may be a non-contact type distance measurement unit such as a laser distance meter, an ultrasonic sensor, or an infrared sensor. *

The mounting length of the carrier bar 16 (interval between the paired feet 14: distance A in FIG. 1) varies depending on the product and the mounting vehicle type. For this reason, it is possible to improve the suitability of the mounting state of the roof carrier body 12 by measuring the length of the carrier bar 16 and determining whether or not this value is appropriate. *

Each detection means 18, 26, 34 is connected to the control means 36 as shown in FIG. The control means 36 may include at least a storage unit 38 such as a memory, a calculation unit 40 such as a CPU, and a communication unit 42. The storage unit 38 stores information detected by the

detection units

18, 26, and 34 and plays a role of constructing a database in which appropriate data related to each detection information is collected for each vehicle type. The information stored as the database includes, for example, the tightening force of the tightening bolt 28, the maximum load applied to each foot 14, the length of the carrier bar 16 (the distance between the feet 14 arranged in the vehicle width direction). ), And the distance of the carrier bar 16 arranged in the vehicle front-rear direction (the distance between the feet 14 arranged in the vehicle front-rear direction). Note that when the number and types of detection means are increased, the storage items for the appropriate value and the maximum value are increased for each element. *

The calculation unit 40 compares the data detected by each of the detection means 18, 26, and 34 with the appropriate value or the maximum value recorded in the database constructed in the storage unit 38, and the detected data is appropriate. Determine whether the value is within the range or within the maximum value. By such determination processing, the result of determining whether the detection data is appropriate or inappropriate is output to the communication unit 42. *

The communication unit 42 is a unit for transmitting a determination processing result, a detection value, and the like by the calculation unit 40 to a notification unit 44 whose details will be described later. The communication distance may be about several meters to several tens of meters, and may be any configuration capable of short-range wireless communication such as Bluetooth (registered trademark) or RFID (Radio Frequency IDentification). *

The notification unit 44 receives information transmitted via the control unit 36, and displays and utters the received information with video and audio, and plays a role of notifying an operator who attaches the roof carrier body 12. *

The informing means 44 may be a dedicated mobile terminal, an in-vehicle terminal device, or the like in addition to a functional mobile terminal such as a smartphone or a smart watch. When the notification means 44 is a functional portable terminal such as a smartphone, application software for communicating with the control means 36 and displaying the received information is installed. *

FIG. 8 is a diagram illustrating an example of a notification screen when the notification unit 44 is a smartphone. In the case of the example shown in FIG. 8, the load balance based on the load applied to each foot 14 and the state of the tightening torque based on the axial force of the tightening bolt 28 are reported. In the case of FIG. 8, an inappropriate state is reported in both the load balance and the tightening torque. Specifically, it has been reported that the load applied to the foot 14 installed on the front side of the vehicle is too large for the load balance. Regarding the tightening torque, it is reported that the tightening torque for fixing the foot 14 located on the right rear side of the vehicle is higher than a specified value. *

In this way, the roof carrier body can be used even when the vehicle is running by adopting a configuration in which the detection information and the result of its suitability can be received and notified by the functional portable terminal, the dedicated portable terminal, and the in-house terminal device. The attachment state of 12 or the attachment state of the accessory attached to this can be confirmed. *

In the detection system 10 according to the embodiment described above, in order to measure the length of the carrier bar 16, the foot main body 14a is provided with a detection means 34 (second detection means) such as a laser distance meter. In the detection system 10 according to the present invention, as the second detection means, in addition to the detection means for measuring the length of the carrier bar 16, the distance between the carrier bars 16 arranged in the longitudinal direction of the vehicle (= front and rear of the vehicle) Detection means (not shown) for measuring the distance between the feet 14 arranged in the direction: distance B in FIG. 1 may be provided. *

Since the appropriate value of the mounting interval of the carrier bar 16 in the vehicle front-rear direction is also different for each vehicle, the suitability of the mounting state of the roof carrier body 12 is improved by enabling detection and notification of such information. Is possible. *

Moreover, in the said embodiment, it described that the detection means 18 (1st detection means) for judging a load balance, an attachment state, and the state of a load was provided between the bottom face of the foot 14, and the roof 50. However, as shown in FIG. 9, the detection means 18 includes a contact surface between the carrier bar 16 and an accessory 54 such as a roof box, a contact surface between the fixing bracket 14 b and the roof 50 as shown in FIG. 10, and a foot. 14 and the carrier bar 16 may be provided on a contact surface (not shown). Here, for example, as shown in FIG. 10, when the detection means 18 is provided on the contact surface between the fixture 14b and the roof 50, a plurality of detection means are provided on the same plane as shown in FIG. It is good to make it. With such a configuration, it is determined whether or not what load is applied to the contact surface when the fastening bolt 28 is tightened and whether or not the fixed state of the fixing bracket 14b is in an appropriate state. It is also possible to perform. *

Furthermore, the detection means 26 (first detection means) may be provided on a tightening bolt 56 used to fix the accessory 54 to the carrier bar 16 as shown in FIG. Of course, the detection means 18 and 26 are not limited to one place, and may be arranged at these places. *

Moreover, in the said embodiment, it indicated that the control means 36 determined whether the load condition was appropriate. When the control means 36 having such a role is configured to include the detection means 18 in the roof carrier body 12, the control means 36 determines the weight of the load loaded on the roof carrier body 12 based on the measurement value of the detection means 18. It is good also as a structure which has a function to calculate. The control means 36 may be provided with such a function, and when the weight of the load exceeds the maximum load capacity, the notification means may be notified. *

Moreover, in the said embodiment, it stated that the control means 36 was provided with the memory | storage part 38, the calculating part 40, the communication part 42 grade | etc.,. However, the control means 36 provided in the roof carrier body 12 may include only the communication unit 42. With such a configuration, the control unit 36 only has a function of transmitting the data detected by the

detection units

18, 26, 34 to the notification unit 44 by the communication unit 42, and suppresses power consumption. Can be planned. *

In such a configuration, the calculation unit and the storage unit are attached to the notification unit 44. When the notification means 44 is a high-functional portable terminal, setting to that effect is performed by application software, and appropriate data stored in the database may be acquired via a communication line such as the Internet. *

Further, when the notifying means 44 is provided with the functions of the calculation unit and the storage unit, the vehicle running detection data stored in the database is appropriately or periodically stored in the development manufacturer's database via a communication line. It can also be configured to save. In such a configuration, data acquired during vehicle travel can be used as vehicle compatibility data or data for product evaluation. For this reason, it is possible to make a product more suitable for the actual situation.

10 ......... Detection system, 12 ......... Roof carrier body, 14 ......... Foot, 14a ......... Foot body, 14b ......... Fixing bracket, 14c ......... Cover, 16 ......... Carrier bar, 18 ... ...... Detecting means, 20 ......... First hard layer, 22 ......... Pressure dispersion member, 24 ......... Second hard layer, 26 ......... Detecting means, 28 ......... Tightening bolt, 28a ......... Bolt head, 30 ......... Washer, 30a ......... First washer, 30b ......... Second washer, 32 ......... Pressure dispersion member, 34 ......... Detecting means, 36 ......... Control means, 38 ... ... Storage section, 40 ... Calculation section, 42 Communication section, 44 Notification means, 50 Roof, 52, Protection member, 54 Accessories 56, Tightening bolt.

Claims

The roof carrier body, the vertical load applied to the foot of the roof carrier body, the load applied to the fastening bolt for fixing the foot and the fixing bracket constituting the foot, the fixing bracket constituting the foot and the roof for fixing the foot First detection means capable of detecting at least one of a load applied to a contact surface of the carrier and a load applied to a contact surface between a carrier bar constituting the roof carrier body and an accessory fixed to the carrier bar; A roof carrier attachment state detection system, comprising: a notification unit configured to notify based on a measurement value of the first detection unit.
The first detection means is provided on at least one of the foot and the fixing bracket of the roof carrier body, and can detect a load applied to at least one of the foot and the fixing bracket. The roof carrier mounting state detection system according to claim 1.
The roof carrier mounting state detection system according to claim 2, wherein a plurality of the first detection means are arranged in a plane parallel to a mounting surface of the foot and the fixing bracket.
2. The roof carrier according to claim 1, wherein the first detection unit is provided on a fastening bolt that fixes the foot of the roof carrier body to the roof, and is capable of detecting an axial force acting on the fastening bolt. Mounting state detection system.
The roof carrier mounting state detection system according to claim 4, wherein the first detection means is a pressure sensor including at least one sensor element and a pressure dispersion member between a pair of washers. .
In the roof carrier main body, a storage unit storing a measurement value of the first detection means and a set value of a load applied to the foot and the fastening bolt, and the measurement value and the set value based on the set value Control means comprising a calculation unit for determining a state of a load applied to the foot and the fastening bolt of the roof carrier, and a communication unit for transmitting a determination result of the calculation unit to the notification unit. The roof carrier mounting state detection system according to any one of claims 1 to 5.
The notification means includes: a communication unit capable of acquiring information of the detection means; a storage unit storing a set value of a load applied to a load detection location by the first detection means; a measurement value of the detection means; A mobile terminal comprising: a calculation unit that determines a state of a load applied to a load detection point by the first detection unit based on a setting value of a storage unit; and a display unit that displays a determination result of the calculation unit. The roof carrier mounting state detection system according to any one of claims 1 to 5, wherein
The set value of the load applied to the load detection location by the first detection means is stored in the external storage unit, and the portable terminal stores the value in the external storage unit by communicating with the external storage unit via the communication unit. The roof carrier mounting state detection system according to claim 7, further comprising a function of reading a set value of a load applied to a load detection location by the first detection means.
The control means includes: a first load applied to the foot by the first detection means; and a load applied to a contact surface between the carrier bar constituting the roof carrier body and the accessory fixed to the carrier bar. 9. When measuring at least one of the above, a function of calculating a load of a load loaded on the roof carrier main body based on the measured value is provided. 9. The mounting state detection system of the roof carrier as described in 2.
The foot has a second length for measuring at least one of a length of the carrier bar spanned between the paired feet and an arrangement interval of the paired carrier bars arranged in the longitudinal direction of the vehicle. The roof carrier mounting state detection system according to any one of claims 1 to 9, further comprising detection means.