JP6592844B2 - Door clamp detector - Google Patents

Description

  The present invention relates to a door pinching detection device for detecting that a vehicle door provided so as to be opened and closed is in a door pinching state when the vehicle door is closed.

  Railway vehicles are provided with vehicle doors used for getting on and off. As a vehicle door opening / closing method, a sliding door method in which a door plate slides in the left-right direction is generally used, and in particular, a method in which a pair of door plates provided opposite to each other are opened or closed so as to be close to or away from each other. Is widely used.

  In such a vehicle door, in order to prevent the railway vehicle from starting in an incompletely closed state in which foreign objects such as passengers and their belongings are sandwiched between a pair of door plates, i.e., in a door sandwiched state, It is necessary to reliably detect that the door is pinched. Therefore, conventionally, a door pinching detection device capable of detecting the door pinching state is installed at the tip of the vehicle door (see, for example, Patent Document 1), and when the door pinching state is detected, automatically or by a conductor or the like The vehicle door is opened by a manual operation to eliminate the pinched state.

  Here, in the conventional door pinching detector described in Patent Document 1, the deformation of the hollow door-end rubber provided at the front end in the closing direction of the door plate is detected as an electric signal by an internal piezoelectric sensor, and this electric signal is detected. Based on this, the presence / absence of foreign matter is determined.

JP 2013-147195 A

    However, the door rubber described in the conventional door pinching detector described in Patent Document 1 has a problem that it is difficult to insert a thin and long sheet-like piezoelectric material into the interior and fix it in a predetermined position.

  The present invention has been made in consideration of such circumstances, and an object of the present invention is to facilitate the attachment of a piezoelectric material to the inside of a door-end rubber used in a door pinching detector.

In order to solve the above problems, the present invention proposes the following means.
That is, the present invention is a door pinching detection device for detecting that a vehicle door provided to be openable and closable is in a door pinching state in which a foreign object is pinched when the door is closed, the closing direction of the vehicle door being A door-end rubber outer member having a base end portion detachably attached to the edge of the front end and having a space inside, and the door-end rubber inside that is detachably accommodated in the space of the door end rubber outer member And a foreign matter detection sensor that is fixed to a tip of the door rubber inner member housed in the door rubber outer member and converts the deformation of the door rubber inner member into an electric signal in a door pinched state. It is characterized by having.

And according to the said invention, the foreign material detection sensor which converts the deformation | transformation of this door-end rubber inner member in a door clamping state into an electrical signal is fixed to the front-end | tip part of the door-end rubber inner member, The door rubber inner member can be inserted into the space of the rubber outer member.
Thereby, it becomes possible to easily accommodate and attach a piezoelectric material to be a foreign matter detection sensor inside the door rubber used in the door pinching detection device.

  Further, in the present invention, the door-end rubber outer member is disposed on an outer peripheral surface between a base end portion located on the opening direction side of the vehicle door and a distal end portion located on the closing direction side of the vehicle door. The outer peripheral groove portion is smaller than the width dimension, and a protruding edge portion formed on the edge portion of the vehicle door is detachably locked to the outer peripheral groove portion.

  And according to the said invention, it has an outer peripheral groove part smaller than a width dimension in the outer surface of the door-end rubber outer member between a base end part and a front-end | tip part, The edge part of a vehicle door is set in this outer peripheral groove part. By locking the protruding edge formed on the door, the door rubber can be easily detached from the edge of the vehicle door.

  Further, in the present invention, an opening is formed in the protruding edge portion of the vehicle door, and a fitting recess is formed through the opening, and the base end portion of the door rubber outer member is It is a fitting convex part fitted by the fitting concave part of the said door for vehicles.

  And according to the said invention, while the opening part is formed in the protrusion edge part of the vehicle door, the fitting recessed part is formed in the inside through this opening part, and also the base end part of a door-end rubber outer member Has a fitting convex part to be fitted into the fitting concave part of the vehicle door, so that when the protruding edge part of the vehicle door is engaged with the outer peripheral groove part of the door-end rubber outer member, The fitting convex portion can be smoothly fitted into the fitting concave portion through the opening.

  Moreover, in this invention, the convex part is formed in the inner surface of the said door-end rubber outer member, and the recessed part of the said door-end rubber inner member accommodated in the said space part is engaged with this convex part. It is characterized by.

  And according to the said invention, the convex part is formed in the inner surface of the door tip rubber outer member, and the concave part of the door tip rubber inner member accommodated in the space part is engaged with the convex part. The door rubber inner member to which the foreign matter detection sensor is fixed can be held at a fixed position in the door rubber outer member.

  In the present invention, the foreign matter detection sensor is disposed in a door-end rubber space formed between an inner surface of a front end of the door-end rubber outer member and a front end portion of the door-end rubber inner member. And

  And according to the said invention, since the foreign material detection sensor is arrange | positioned in the door-end rubber space part formed between the front-end | tip inner surface of a door-end rubber outer member, and the front-end | tip part of a door end rubber inner member, vehicle When the door door is closed, a foreign object is caught in the door rubber outer member, and the door rubber outer member is deformed and comes into contact with a foreign object detection sensor fixed to the tip of the door rubber inner member. The detection state of the door can be detected effectively by the detection sensor.

  Moreover, in this invention, the said door-end rubber outer member is formed with the soft material whose hardness is smaller than the said door-end rubber inner member, It is characterized by the above-mentioned.

  According to the above invention, since the door rubber outer member is formed of a soft material having a hardness lower than that of the door rubber inner member, foreign matter is caught in the door rubber outer member when the vehicle door is closed. When this occurs, the deformation of the door rubber outer member is facilitated. When the door rubber member is deformed and comes into contact with a foreign object detection sensor fixed to the tip of the door rubber member, the deformation of the door rubber member is suppressed, and the door rubber It is possible to minimize the distortion generated on the adhesive surface between the inner member and the foreign matter detection sensor.

  In the present invention, the door rubber outer member is located at the center of the slide path of the vehicle door in the space of the door rubber outer member and at the end position when the vehicle door is closed. A cushioning material is provided which is in contact with the front end of the vehicle door and relaxes an impact with a stopper that restricts the movement of the vehicle door from the stop position.

  And according to the said invention, it contacts the front-end part of the said door-end rubber outer member in the space of the said door-end rubber outer member at the terminal position at the center part of the slide path | route of the said vehicle door at the time of closing. Since the shock absorber with the stopper that restricts the movement exceeding the stop limit of the vehicle door is filled, even if the vehicle door is closed, even if it collides with the stopper, It is possible to prevent the foreign matter detection sensor fixed to the rubber inner member from being damaged.

  Further, in the present invention, a notch is formed in the base end of the door rubber outer member and the end surface facing the vehicle door, and through the notch into the space of the door rubber outer member. The door-end rubber inner member is accommodated.

  And according to the said invention, the notch part is formed in the base end part of the door-end rubber outer member, and the end surface which faces a vehicle door, The door is inserted in the space part of the door-end rubber outer member through this notch part. The inner rubber member can be easily accommodated.

  In the present invention, the space portion is formed by a hollow portion whose entire circumference is covered with the door rubber outer member, and the door rubber inner member is accommodated in the hollow portion along the length direction. It is characterized by that.

  And according to the said invention, a space part is formed by the hollow part with which the perimeter was covered with the door-end rubber outer member, and a door-end rubber inner member is accommodated in this hollow part along a length direction. Thus, the door-end rubber inner member to which the foreign matter detection sensor is fixed can be stably held in the space formed in the door-end rubber outer member in a hollow shape.

According to the present invention, the foreign matter detection sensor for converting the deformation of the door-end rubber inner member in the door clamp state into an electric signal is fixed to the tip of the door-end rubber inner member, and in this state, the door-end rubber external The door inner rubber member can be inserted into the space of the material.
Thereby, it becomes possible to easily accommodate and attach a piezoelectric material to be a foreign matter detection sensor inside the door rubber used in the door pinching detection device.

It is a schematic block diagram of the door pinching detection apparatus which concerns on 1st Embodiment of this invention, Comprising: (A) is a general view, (B) is a figure which shows a piezoelectric material. It is a figure which shows the door-end rubber outer member of 1st Embodiment, Comprising: (A) is a figure which shows an edge part, (B) is the figure which looked at (A) from the side. It is a figure which shows the door-end rubber inner member of 1st Embodiment, Comprising: (A) is a figure which shows an edge part, (B) is the figure which looked at (A) from the side. It is a figure which shows the operation | movement which inserts a door-end rubber inner member in a door-end rubber outer member, Comprising: (A) is a figure which shows an edge part, (B) is the figure which looked at (A) from the side. It is sectional drawing after inserting a door-end rubber inner member in a door-end rubber outer member, Comprising: (A) is sectional drawing which follows the AA line of (B), (B) is BB of (A). It is sectional drawing which follows a line. It is a front view which shows the positional relationship of the stopper provided in the slide path | route of the doorplate. It is a figure which shows the door-end rubber outer member of 2nd Embodiment, Comprising: (A) is a figure which shows an edge part, (B) is the figure which looked at (A) from the side. It is a figure which shows the door-end rubber inner member of 2nd Embodiment, Comprising: (A) is a figure which shows an edge part, (B) is the figure which looked at (A) from the side. It is a figure which shows the operation | movement which inserts a door-end rubber inner member in a door-end rubber outer member, Comprising: (A) is a figure which shows an edge part, (B) is the figure which looked at (A) from the side. It is sectional drawing after inserting a door-end rubber inner member in a door-end rubber outer member, Comprising: (A) is sectional drawing which follows the AA line of (B), (B) is BB of (A). It is sectional drawing which follows a line.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1A is an exploded perspective view showing a part of a vehicle door device 1 provided with a door pinching detection device 10 according to a first embodiment of the present invention.

As shown in FIG. 1A, the vehicle door device 1 includes a vehicle door 2 that is slidable along an opening / closing direction (opening direction B, closing direction B), and closing of the vehicle door 2. And a door pinching detector 10 provided at the front end of the direction.
Although not shown in detail in FIG. 1 (A), a pair of the vehicle door device 1 is provided so as to face each other in the opening / closing direction, and the vehicle door device 1 includes the door pinching detection device 10. Are facing each other.

As shown in FIG. 1 (A), the vehicle door 2 is a substantially rectangular flat plate member that penetrates in the thickness direction thereof and has a window portion 3 formed therein, and a window portion 3 of the door plate 4. And a fitted window glass 5.
And the fitting recessed part 6 which has a substantially rectangular shape with a cross section is the vertical direction (arrow honey direction of an arrow) substantially orthogonal to the height direction of the doorplate 4, ie, the closing direction B, in the closing direction B front end surface of the doorplate 4. ).
The fitting recess 6 communicates with the inside through an opening 8 positioned between a pair of opposing protruding edges 7, and the width dimension 6 a is an opening positioned between the protruding edges 7. 8 is set larger than the groove width 8a.
And in the door plate 4 comprised as mentioned above, the fitting convex part 25 which exists in the base end part 22 of the door-end rubber outer member 20 in the fitting recessed part 6 through the opening part 8 located between the protrusion edge parts 7. FIG. At the same time, the protruding edge 7 is engaged with the outer peripheral groove 24 of the door rubber outer member 20 (details will be described later). As a result, the door end rubber 11 is coupled and held to the end surface 4A of the door plate 4 on the closing direction B side.

The door pinching detection device 10 includes a door-end rubber 11 provided on the edge 4 </ b> A on the closing direction B side of the door plate 4, and a piezoelectric material 12 serving as a foreign object detection sensor provided inside the door-end rubber 11. ing.
As shown in FIGS. 2 (A), 2 (B) to 5 (A) (B), the door rubber 11 includes a door rubber outer member 20 that is detachably attached to the edge 4A of the door plate 4; A door-end rubber inner member 30 is detachably accommodated in the space 21 of the door-end rubber outer member 20, and a long member made entirely of a rubber material is formed.

The door-end rubber outer member 20 has a base end portion 22 located on the opening direction A side of the door plate 4 and a tip end portion 23 located on the closing direction B side of the door plate 4, and these base end portion 22 and the tip end. An outer peripheral groove portion 24 is provided between the portions 23.
The outer peripheral groove portion 24 has a width smaller than the base end portion 22 and the front end portion 23 of the door end rubber outer member 20 and a width dimension 24 a substantially the same as the groove width 8 a of the opening 8.
Further, the base end portion 22 of the door rubber outer member 20 forms a fitting convex portion 25 that can be fitted into the fitting concave portion 6 through the opening portion 8 of the door plate 4, and the opening portion 8 of the fitting concave portion 6. The width 22a is larger than the groove width 8a and slightly smaller than the width 6a of the fitting recess 6.

  In such a door-end rubber outer member 20, when the fitting convex portion 25 on the base end portion 22 side is fitted into the fitting concave portion 6 in the door plate 4 through the opening portion 8, the base end portion 22. The protruding edge portion 7 located at the edge portion 4 </ b> A of the door plate 4 is locked to the outer peripheral groove portion 24 between the front end portion 23 and the outer edge portion 23. As a result, the door-end rubber 11 including the door-end rubber outer member 20 is fixed to the door plate 4.

Further, the door rubber outer member 20 is formed in a hollow shape, and has a space portion 21 along the length direction (the vertical direction indicated by the arrow honey when attached to the door plate 4). Yes.
Further, a notch portion 26 communicating with the space portion 21 is formed on the end surface facing the door plate 4 at the base end portion 22 of the door-end rubber outer member 20, and for example, a door-end rubber so that the notch portion 26 is expanded. After the outer material 20 is expanded in an elastically deformed state so as to go outward in the left and right directions in FIG. 2A, the door end rubber inner member 30 is accommodated in the space portion 21, and then the notch 26 is narrowed by an elastic force. By restoring, it can be assembled in a state as shown in FIG.

A convex portion 27 is formed on the inner side surface of the door-end rubber outer member 20 and on the back side of the outer circumferential groove portion 24, and the outer surface of the side portion of the door-end rubber inner member 30 is engaged with the convex portion 27. A recess 31 is formed.
And the convex part 27 of these door-end rubber outer members 20 and the recessed part 31 of the door-end rubber inner member 30 are when the door-end rubber inner member 30 is accommodated in the space part 21 of the door-end rubber outer member 20. Engage with each other.
Further, when the door-end rubber inner member 30 is accommodated in the space 21 of the door-end rubber outer member 20, there is a gap between the tip inner surface of the door-end rubber outer member 20 and the tip end surface of the door-end rubber inner member 30. A door-end rubber space 32 having a substantially hemispherical cross section is formed, and the piezoelectric material 12 is disposed in the door-end rubber space 32.
Further, the door rubber outer member 20 is formed of a softer material or shape than the door rubber inner member, so that when the vehicle door 1 is closed, foreign matter is caught in the door rubber outer member 20. The deformation of the door rubber outer member 20 is facilitated.

  The piezoelectric material 12 converts the deformation of the door-end rubber inner member 30 in the state of being sandwiched between doors into an electric signal, as shown in FIGS. 4 (A) (B) and 5 (A) (B). Next, it is attached to the tip convex portion 33 of the door-end rubber inner member 30 accommodated in the door-end rubber outer member 20.

  The piezoelectric material 12 is a plate-like member in which a plurality of piezoelectric particles are dispersed in a medium. More specifically, the direction of the electric field applied to the medium is the same as the polarization direction of the plurality of piezoelectric particles. Thus, the piezoelectric particles are continuously oriented along the direction of the electric field. Examples of the piezoelectric material 12 include a piezoelectric rubber in which piezoelectric particles such as lead zirconate titanate are continuously oriented in a thickness direction in a medium such as silicone rubber.

  Piezoelectric particles are particles that exhibit a piezoelectric effect. When mechanical stress is applied, this piezoelectric particle generates an electric field corresponding to the stress to generate an electric field (positive effect), and when an electric field is applied to generate electric polarization, a distortion corresponding to the magnitude of the electric field is generated. The piezoelectric effect (reverse effect) is shown. For example, when the medium is rubber, the piezoelectric particles are continuously oriented in the rubber. The piezoelectric particles are, for example, particles of lead zirconate titanate (PZT), barium titanate, lithium niobate, lead titanate, lead metaniobate, polyvinylidene fluoride, or quartz.

  The medium is a base material (matrix) that holds piezoelectric particles. The medium holds the piezoelectric particles so that the plurality of piezoelectric particles are continuously oriented in the direction of the applied electric field, and the plurality of piezoelectric particles are held in a plurality of rows. The medium is, for example, a thermosetting or two-component curing rubber such as silicone rubber or urethane rubber, a thermoplastic elastomer such as styrene, olefin or vinyl chloride, heat such as olefin or vinyl chloride such as polyethylene or polypropylene. A plastic resin, a thermosetting resin such as epoxy or polyester before heat curing, a liquid such as silicone oil or ethylene glycol (antifreeze) is preferable. Also, as the medium, rubber having excellent flexibility and flexibility is particularly preferable, and the advantages of flexibility and flexibility are lost compared to rubber, but there are dimensions and freedom of molding, and it is not as fragile as piezoelectric ceramics. A resin exhibiting high deflection is preferred.

  Here, the piezoelectric rubber is, for example, a mixing step of mixing a rubber material such as chloroprene rubber and a piezoelectric ceramic powder such as lead zirconate titanate, a vulcanizing step of vulcanizing the mixture after the mixing step, And a polarization step in which a voltage is applied to both ends of the mixture after the vulcanization step to polarize the mixture.

FIG. 1B is a schematic front view showing the configuration of the piezoelectric material 12. The piezoelectric material 12 is electrically connected to the substantially rectangular piezoelectric rubber portion 13, a pair of electrodes 14 provided along the longitudinal direction at both ends in the width direction of the piezoelectric rubber portion 13, and the pair of electrodes 14, respectively. And a pair of wirings 15.
In the piezoelectric material 12 configured in this way, as shown in FIGS. 1 (A), 3 (A), (B) to 5 (A), (B), the tip protrusion 33 of the door rubber inner member 30 is provided. A piezoelectric rubber portion 13 is attached in the vertical direction (in the arrow honey direction).

FIG. 1A is a schematic diagram illustrating a circuit configuration of the door pinching detection device 10.
This door pinching detection device 10 includes a charge amplifier 16 to which a pair of wirings 15 constituting a part of the piezoelectric material 12 are respectively connected, a voltage measuring device 17 electrically connected to the charge amplifier 16, The abnormality detection means 18 consisting of
Here, the charge amplifier 16 serves to convert charges generated from the piezoelectric material 12 into a voltage, and the voltage measuring device 17 serves to detect a change in voltage input from the charge amplifier 16. When the voltage measuring instrument 17 detects a pinched state, an alarm 19 displays an abnormality. More specifically, the information is displayed on the driver's seat or the like so that the crew can visually or audibly recognize the occurrence of the door pinching.

Further, as shown in FIGS. 5A and 5B and FIG. 6, in a state where the door rubber inner member 30 to which the piezoelectric material 12 is attached is accommodated in the space portion 21 of the door rubber outer member 20. The end position of the space 21 of the door rubber outer member 20 is filled with an aluminum piece 40 and a buffer material 41.
The aluminum piece 40 is installed in order to give the door end rubber outer member 20 a certain strength, and the buffer member 41 has the stopper 50 when the door plate 4 is closed in the direction of arrow B when the stopper 50 is closed. It is provided in order to mitigate the impact when contacting the front end of the rubber outer member 20.
As shown in FIG. 6, the stopper 50 is an elastic material that is located on the vehicle main body 51 side and is installed at the center of the slide path 52 of the door plate 4, and the front end of the door-end rubber outer member 20 when closed. The door plate 4 is stopped at a predetermined position by coming into contact with the portion.
And in the door rubber | gum 11 as mentioned above, the door rubber | gum 11 collides with the stopper 50 at the time of a doorplate closure by filling the buffer material 41 in the space part 21 of the door rubber | gum outer member 20, and a terminal position. Even so, the shock is mitigated by the elastic deformation of the buffer material 41.

Next, a procedure for installing the door pinching detection device 10 on the door plate 4 will be described.
(1) First, as shown in FIGS. 3 (A) and 3 (B), the piezoelectric material 12 is affixed on the tip convex portion 33 of the door end rubber inner member 30. At that time, the piezoelectric material 12 is placed on the tip convex portion 33 by placing the piezoelectric rubber portion 13 along the length direction of the tip convex portion 33 of the door-end rubber inner member 30.

(2) A notch portion 26 communicating with the space portion 21 is formed on the end surface facing the door plate 4 at the base end portion 22 of the door-end rubber outer member 20, and the notch portion 26 is expanded in a state where the notch portion 26 is expanded. Through the portion 26, the door rubber inner member 30 to which the piezoelectric material 12 is bonded is pushed into and accommodated in the space 21 of the door rubber outer member 20. In addition, it is not limited to this, As shown by the arrow in FIG. 4 (B), from the terminal opening part of the space part 21 of the door-end rubber | gum outer member 20, along a length direction (arrow honey direction). The door rubber inner member 30 may be accommodated in the door rubber outer member 20 by pushing and guiding the door rubber inner member 30.

(3) As shown by the arrow in FIG. 5, the buffer material 41 is filled together with the aluminum piece 40 in the space portion 21 of the door-end rubber outer member 20 at the end position. Thus, even when the door rubber 11 collides with the stopper 50 in the middle of the slide path 51 when the door plate is closed, the shock is reduced by the elastic deformation of the buffer material 41 and the piezoelectric material 12 fixed to the door rubber inner member 30 is fixed. Can be prevented from being damaged.

(4) While fitting the fitting convex part 25 by the side of the base end part 22 of the door-end rubber outer member 20 in the fitting recessed part 6 in the doorplate 4, the base end part 22 and front-end | tip part of the door-end rubber outer member 20 The protruding edge portion 7 located at the edge portion 4 </ b> A of the door plate 4 is engaged with the outer peripheral groove portion 24 between the door plate 4 and the outer peripheral groove portion 23. As a result, the door-end rubber 11 including the door-end rubber outer member 20 is fixed to the door plate 4 as shown in FIGS.

Next, the operation of the door pinching detector 10 according to the embodiment of the present invention will be described.
When the pair of vehicle door devices 1 that are provided with the door pinching detection device 10 and are opposed to each other are closed, the passenger's belongings, etc., between the pair of door rubbers 11 that constitute the door pinching detection device 10 and face each other. May be caught. In this case, the pair of door rubbers 11 (the door rubber outer member 20 and the door rubber inner member 30) located on both sides of the foreign object are recessed toward the closing direction B by being pressed by the foreign object. Each elastically deforms.

  Then, the pair of piezoelectric materials 12 respectively attached to the tip protrusions 33 of the door-end rubber inner member 30 of the pair of door-end rubbers 11 also follow the elastic deformation of the door-end rubber outer member 20 of the door-end rubber 11. Thus, the piezoelectric rubber portion 13 is elastically deformed in a concave shape toward the closing direction B, respectively. As a result, the amount of charge generated from the piezoelectric rubber portion 13 changes, and the change in the amount of charge is converted into a change in voltage by the charge amplifier 16. Then, when the voltage measuring device 17 detects this change in voltage, it is detected that the piezoelectric rubber portion 13 has been deformed, that is, a door is sandwiched between the pair of vehicle doors 2. Is done. Of course, even when the piezoelectric material 12 is provided only on one of the door rubbers 11 of the vehicle door 2, it is possible to detect the door pinching from the change in the electric charge of the piezoelectric material 12.

  When the door pinching state is detected in this way, the door pinching state is canceled by opening the vehicle door 2 automatically or by operating the conductor based on a signal from the alarm device 19. The door pinching detection device 10 operates only when the vehicle door 2 is closed to detect the door pinching state, and does not operate while the vehicle is traveling. Thereby, it is set so that the door pinching state is detected while the vehicle is running and the vehicle door 2 is not opened.

  In addition, in a state in which the pair of vehicle door devices 1 are closed, the passengers and their belongings may come into contact with the door rubber 11 from the inside of the vehicle or the outside of the vehicle. However, as described above, the piezoelectric rubber portion 13 attached to the tip convex portion 33 of the door-end rubber inner member 30 of the door-end rubber 11 is formed on the door plate 4 at the portion formed in the arc shape of the door-end rubber 11. It is affixed to the thickness direction center part. Therefore, even if a passenger or his / her belongings come into contact with the door rubber 11 from the inside or the outside of the vehicle, elastic deformation hardly occurs in the central portion in the thickness direction of the door plate 4 in the door rubber 11. The part 13 is not elastically deformed. Thereby, the door pinching detection apparatus 10 can detect only the door pinching state reliably, without detecting the contact to the door-end rubber 11 by a passenger or its belongings.

As described in detail above, according to the door pinching detection device 10 shown in the first embodiment, the deformation of the door rubber inner member 30 in the door pinching state is electrically applied to the distal end portion of the door rubber inner member 30. The piezoelectric material 12 to be converted into a signal is fixed, and the door rubber inner member 30 can be inserted into the space 21 of the door rubber outer member 20 in this state.
Thereby, it becomes possible to easily accommodate and attach the piezoelectric material 12 serving as a foreign object detection sensor inside the door rubber 11 used in the door pinching detection device 10.

  Moreover, according to the said door pinching detection apparatus 10, it has the outer periphery groove part 24 smaller than a width dimension in the outer surface of the door end rubber outer member 20 between the base end part 22 and the front-end | tip part 23, and this outer periphery groove part By locking the protruding edge 7 formed on the edge of the door plate 4 to 24, the door rubber 11 can be easily detached from the edge of the door plate 4.

  Further, according to the door pinching detection device 10, the protruding edge 7 of the door plate 4 is formed with the opening 8, and the fitting recess 6 is formed inside through the opening 8. The base end portion 22 of the rubber outer member 20 has a fitting convex portion 25 fitted into the fitting concave portion 6 of the door plate 4. Thus, when the protruding edge 7 of the door plate 4 is engaged with the outer peripheral groove 24 of the door end rubber outer member 20, the fitting convex portion 25 is smoothly inserted into the fitting concave portion 6 through the opening 8 of the door plate 4. Can do.

  Further, according to the door pinching detection device 10, the protrusion 27 is formed on the inner surface of the door rubber outer member 20, and the door rubber inner member 30 accommodated in the space 21 is formed on the protrusion 27. By engaging the recess 31, the door rubber inner member 30 to which the piezoelectric material 12 is fixed can be held at a fixed position in the door rubber outer member 20.

  Further, according to the door pinching detection device 10, the piezoelectric material 12 is placed in the door end rubber space 32 formed between the inner surface of the front end of the door end rubber outer member 20 and the end of the door end rubber inner member 30. Therefore, when the door plate 4 is closed, a foreign material is caught between the door-end rubber outer members 20, and the door-end rubber outer member 20 is deformed and fixed to the distal end portion of the door-end rubber inner member 30. In the case of contact with the door 12, the door pinching state can be detected effectively by the piezoelectric material 12.

Moreover, according to the said door pinching detection apparatus 10, since the door-end rubber outer member 20 is formed with the soft material whose hardness is smaller than the door-end rubber inner member 30, when the door board 4 is closed, the door end rubber exterior When a foreign object is caught in the material 20, the deformation of the door rubber outer member 20 is facilitated.
Further, when the door rubber outer member 20 is deformed and comes into contact with the piezoelectric material 12 fixed to the tip of the door rubber inner member 30, the deformation of the door rubber inner member 30 is suppressed, The distortion which arises in the adhesion surface between the door end rubber inner member 30 and the piezoelectric material 12 can be minimized.

  Further, according to the door pinching detection device 10, the cushioning material 41 that relaxes the impact with the stopper 50 when the door plate 4 is closed is filled in the space portion 21 and the end position of the door rubber outer member 20. Therefore, even if the door plate 4 is closed, even if it collides with the stopper 50, it is possible to prevent the piezoelectric material 12 fixed to the door-end rubber inner member 30 from being damaged by the shock absorbing material 41.

  Further, according to the door pinching detection device 10, the notch 26 is formed on the base end 22 of the door rubber outer member 20 and the end face facing the door plate 4, and the door rubber is passed through the notch 26. The door end rubber inner member 30 can be easily accommodated in the space 21 of the external member 20.

(Second Embodiment)
A second embodiment of the present invention will be described with reference to FIGS.
Note that, in the second embodiment, the same reference numerals are given to components having the same configuration as that of the first embodiment, and redundant description is omitted.

  The door-end rubber 11 ′ shown in the second embodiment is different from the door-end rubber 11 shown in the first embodiment in the configuration of the door-end rubber outer member 20 ′ and the door-end rubber outer member 20. This is a configuration of a door-end rubber inner member 30 ′ that is removably accommodated in the space portion 21 ′.

That is, as shown in FIGS. 7A and 7B, in the door-end rubber 11 ′ shown in the second embodiment, the notch portion 26 is not provided in the door-end rubber outer member 20 ′. The space portion 21 ′ is a closed space whose periphery is covered.
For this reason, it is made into the lump shape which does not have space in fitting convex part 25 'used as the base end part 22 of the door-end rubber outer member 20' shown by 2nd Embodiment, and the front-end | tip part of the door-end rubber outer member 20 A space 21 'is formed only at 23'.
This space portion 21 'is formed along the width direction and has a substantially hemispherical cross-sectional shape. From the end opening, the door rubber inner member 30' is pushed in along the length direction and guided. By doing so, the door rubber inner member 30 'is accommodated in the door rubber outer member 20'.

Regarding the procedures (1) to (4) when installing the door rubber 11 'on the door plate 4, the following item (2) is different from the first embodiment.
That is,
(1) First, as shown in FIGS. 8 (A) and 8 (B), the piezoelectric material 12 is pasted on the tip convex portion 33 of the door end rubber inner member 30 ′. At that time, the piezoelectric material 12 is placed on the tip convex portion 33 by placing the piezoelectric rubber portion 13 along the length direction of the tip convex portion 33 of the door-end rubber inner member 30 ′.

(2) As indicated by an arrow in FIG. 9B, the door rubber inner member 30 ′ is pushed and guided along the length direction from the end opening of the space 21 ′ of the door rubber outer member 20 ′. By doing so, the door rubber inner member 30 ′ may be accommodated in the door rubber outer member 20 ′.

(3) As indicated by an arrow in FIG. 10, the buffer material 41 is filled together with the aluminum piece 40 in the space portion 21 ′ of the door rubber outer member 20 ′ and at the end position.
As a result, even when the door rubber 11 ′ collides with the stopper 50 in the middle of the slide path 51 when the door plate is closed, the piezoelectric material 12 fixed to the door rubber inner member 30 ′ is broken by the shock absorbing material 41. Can be prevented.

(4) The fitting convex portion 25 'on the base end portion 22' side of the door end rubber outer member 20 'is fitted to the fitting recess 6 in the door plate 4, and the base end portion of the door end rubber outer member 20' is fitted. The protruding edge 7 located at the edge 4 </ b> A of the door plate 4 is engaged with the outer peripheral groove 24 between 22 ′ and the tip 23. Accordingly, the door end rubber 11 ′ including the door end rubber outer member 20 ′ is fixed to the door plate 4 as shown in FIGS.

As described above in detail, according to the second embodiment, the piezoelectric material that converts the deformation of the door end rubber inner member 30 ′ in the door clamp state into an electric signal at the front end portion of the door end rubber inner member 30 ′. In this state, the door end rubber inner member 30 ′ can be inserted into the space 21 ′ of the door end rubber outer member 20 ′.
Thereby, it becomes possible to easily accommodate and attach the piezoelectric material 12 serving as the foreign matter detection sensor inside the door rubber 11 ′ used in the door pinching detection device 10.

  Moreover, according to the door pinching detection device 10 shown in the second embodiment, the space portion 21 ′ is formed by the hollow portion whose entire circumference is covered by the door end rubber outer member 20 ′, and the hollow space portion 21 ′ is formed. Since the door rubber inner member 30 'is accommodated along the length direction, the door rubber inner member 30' to which the piezoelectric material 12 is fixed is replaced with the space 21 'of the door rubber outer member 20'. It can be held in a stable state.

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

  The present invention relates to a door pinching detection device for detecting that a vehicle door provided so as to be opened and closed is in a door pinching state when the vehicle door is closed.

DESCRIPTION OF SYMBOLS 1 Vehicle door device 2 Vehicle door 3 Window part 4 Door board 5 Window glass 6 Fitting recessed part 7 Projection edge part 8 Opening part 10 Door pinching detection apparatus 11 Door tip rubber 11 'Door tip rubber 12 Piezoelectric material (foreign substance detection sensor)
DESCRIPTION OF SYMBOLS 13 Piezoelectric rubber 20 Door tip rubber outer member 20 'Door tip rubber outer member 21 Space part 21' Space part 22 Base end part 22 'Base end part 23 Front end part 24 Outer peripheral groove part 25 Fitting convex part 25' Fitting convex part 26 Notch 27 Convex 30 Door rubber inner member 30 'Door rubber inner member 31 Recess 32 Door rubber space 33 Tip convex

Claims (2)

A door pinching detection device for detecting that a vehicle door provided to be openable and closable is in a door pinching state in which a foreign object is pinched when closed,
A door end rubber outer member having a base end portion detachably attached to an edge of a front end of the vehicle door in a closing direction and having a space inside;
A door rubber inner member removably accommodated in a space of the door rubber outer member;
A foreign matter detection sensor that is fixed to a tip of the door rubber inner member housed in the door rubber outer member and converts deformation of the door rubber inner member into an electric signal when the door is pinched. And
The door-end rubber outer member is formed on the outer peripheral surface between the base end portion located on the opening direction side of the vehicle door and the distal end portion located on the closing direction side of the vehicle door, rather than its width dimension. Having a small outer groove,
A protruding edge formed on the edge of the vehicle door is detachably locked to the outer circumferential groove,
An opening is formed in the protruding edge of the vehicle door, and a fitting recess is formed inside through the opening,
The base end portion of the door rubber outer member is a fitting convex portion that is fitted into the fitting concave portion of the vehicle door,
A convex portion is formed on the inner surface of the door-end rubber outer member, and the concave portion of the door-end rubber inner member accommodated in the space portion is engaged with the convex portion,
The foreign object detection sensor is disposed in a door rubber space portion formed between a front end inner surface of the door rubber outer member and a front end portion of the door rubber inner member,
The door rubber outer member is formed of a softer material than the door rubber inner member,
A notch portion is formed in a base end portion of the door-end rubber outer member and an end face facing the vehicle door, and the door-end rubber inner member is inserted into the space portion of the door-end rubber outer member through the notch portion. Is housed,
A portion of the door rubber inner member closer to the closing direction of the vehicle door than the recess is accommodated in a front end portion of the door rubber outer member, and the vehicle door from the recess of the door rubber inner member. The door pinching detector is characterized in that a portion on the opening direction side is housed inside the base end of the door rubber outer member.   Within the space of the door rubber outer member and at the end position, when the vehicle door is closed at the center of the slide path of the vehicle door, the vehicle door is stopped by contacting the front end of the door rubber outer member. The door pinching detection device according to claim 1, wherein the door pinching detection device is filled with a cushioning material that relieves an impact with a stopper that restricts the movement beyond the limit.

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