JP2010247570A - Protection plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protective plate which is prevented from removing out of a driver seat even if an impact is applied thereto and miniaturized so as to be removed from the driver seat in a short time. <P>SOLUTION: A protective plate 2 for obstructing the entry of an obstacle onto the driver seat 100 is formed integrally with a mounting plate 3 to which a headrest 10 is installed. Therefore, the strength of the protective plate 2 is increased, and the protective plate is prevented from removing out of the driver seat 10 even if an impact is applied thereto. Also, the protective plate 2 is miniaturized without extending downward so as to be removed from the driver seat in a short time. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a protective plate for preventing an attack on a driver seated in a driver seat.

  In recent years, there have been frequent robbery incidents where passengers seated in the back seat of a taxi attack the driver from behind, and a protective plate was installed on the back side of the driver's seat to prevent the driver from being attacked. Protecting the driver is done.

  Patent Document 1 discloses a security screen in which a side-view L-shaped mounting portion is fixed to the front surface of the protective plate, and the mounting portion includes a fixed plate portion screwed to the front surface of the protective plate, And a protruding plate portion protruding forward from the upper edge of the fixed plate portion. The projecting plate portion is provided with two through holes, and a support shaft that supports the headrest of the driver's seat is inserted through the through holes. The protective plate extends downward along the backrest portion of the driver's seat, and a security screen is stably fixed to the driver's seat by attaching a belt attached to the lower portion of the protective plate to the backrest portion.

  When replacing the seat cover disposed in the driver's seat, the support shaft is removed from the insertion hole and the belt is removed from the backrest portion, so that the burden on the operator who replaces the seat cover is reduced.

JP 2000-21457 A

  However, in the crime prevention screen described in Patent Document 1, when a burglar makes an impact on the protective plate, the stress concentrates on the portion where the fixed plate portion and the protective plate are screwed, and the protective plate is fixed to the fixed plate portion. May come off. The protective plate is large because it extends downward along the backrest, and it takes a long time to remove the security screen.

  The present invention has been made in view of such circumstances, when the protective plate portion that prevents the entry of an object into the driver's seat and the mounting plate portion for attaching the headrest are integrally connected to improve the strength and an impact is applied. However, to provide a protective plate that prevents the protective plate portion from coming off the mounting plate portion, reduces the size of the protective plate without extending the protective plate portion downward, and can be removed from the driver's seat in a short time. With the goal.

  The mounting plate portion is clamped by clamping means arranged above and below the mounting plate portion along the support shaft, and the clamping means is fixed to the support shaft, and the mounting plate portion is fixed to the support shaft. The purpose of the present invention is to provide a protective plate that can maintain the driver's safety by maintaining the state where the mounting plate portion is attached to the support shaft even when an impact is applied to the protective plate portion. And

  In addition, nipples are arranged in the insertion holes so that the respective ends are located above and below the mounting plate, screw cap nuts and nuts are screwed into the upper and lower ends of the nipples, and screw nuts are screwed into the upper ends of the nipples. Then, the bush arranged between the cap nut and the upper end portion of the nipple is pressed by the cap nut, and the bush is fitted into the upper end portion of the nipple. Further, a nut is screwed into the lower end portion of the nipple from the lower surface side of the mounting plate portion, and the mounting plate portion is sandwiched by the nut and the flange portion of the nipple positioned on the upper surface side of the mounting plate portion, and clamping means Even if the mounting plate is firmly fixed to the support shaft, the mounting plate is stably fixed to the support shaft, and an impact is applied to the protective plate, the mounting plate does not come off the support shaft. The purpose is to provide a protective plate that can ensure the safety of a person.

  Also, by using a nipple whose upper end diameter is larger than the lower end diameter, it becomes easier to insert the lower end portion of the nipple into the insertion hole, and the diameter of the cap nut increases according to the upper end portion of the nipple. An object of the present invention is to provide a protective plate that can easily attach or remove the cap nut to the nipple because the nut can be easily gripped, and can attach the cap nut to the nipple with a large moment force.

  Also, the bush is made of an elastic member, and the cap nut and nipple are crimped by elastic force, so that even if an impact is applied to the protective plate, it will not come off the support shaft, ensuring the safety of the driver An object is to provide a protective plate that can be secured.

  Further, the bush protrudes from the upper end of the nipple, so that when the cap nut is screwed into the upper end of the nipple, the bush is compressed, and the cap nut and the nipple are pressure-bonded by the elastic force of the bush to protect the bush. It is an object of the present invention to provide a protective plate that can reliably ensure the safety of the driver without being detached from the support shaft even when an impact is applied to the plate portion.

  Further, by forming the outer surface of the bush into a tapered shape so that the diameter decreases toward the lower part, the lower end of the bush can be easily fitted into the upper end of the nipple, and the bush can be attached to the nipple in a short time. The purpose is to provide a protective plate.

  In addition, two annular members are inserted into the support shaft, and the annular member is accurately positioned using the support shaft as a guide. With the annular member inserted into the support shaft, the annular plate is brought close to each other to securely attach the mounting plate portion. It is an object of the present invention to provide a protective plate that can be sandwiched between the mounting plate portion and the mounting plate portion and the support shaft.

  Further, the screw is screwed into a screw hole along the radial direction of the annular member formed in the annular member, and the screwed screw is crimped to the support shaft so that the annular member is securely fixed to the support shaft. It is an object of the present invention to provide a protective plate capable of strongly fixing the mounting plate portion in the gap and firmly fixing the mounting plate portion and the support shaft with a simple configuration.

  It is another object of the present invention to provide a protective plate that allows a driver to easily pull out the seat belt by forming a notch for pulling out the seat belt in the protective plate portion.

  Also, an elastic member is provided along the edges of the protective plate portion and the mounting plate portion to provide a protective plate that can prevent the driver from being injured by touching the edges of the protective plate portion and the mounting plate portion. The purpose is to do.

  In addition, in the part of the protective plate that extends to the passenger seat side, a dialogue hole is provided to communicate with those who get on the back side of the driver's seat, so that communication with those who get on the back side of the driver's seat is facilitated. It is an object of the present invention to provide a protective plate that can be used for the following.

  In addition, the protective plate portion and the mounting plate portion are formed of polycarbonate to improve the strength of the protective plate portion and the mounting plate portion, so that even when an impact is applied to the protective plate portion, the protective plate portion and the mounting plate portion are attached. It is an object of the present invention to provide a protective plate that can maintain the state of being attached to a support shaft without damage to the plate portion and ensure the safety of the driver.

  The protective plate according to the present invention is provided on the rear side of the headrest of the driver's seat, extends a front side of the protective plate that prevents an object from entering the driver's seat, and the lower side of the headrest, An attachment plate portion attached to a support shaft extending from the lower portion of the protection plate, and an insertion hole for inserting the support shaft is provided in the attachment plate portion. It is located between the backrest part of the seat and the headrest, and the lower end part of the protection plate part and the mounting plate part are connected integrally.

  In the present invention, the protective plate portion that prevents the object from entering the driver's seat and the mounting plate portion to which the headrest is attached are joined together to improve the strength. Further, the protective plate is made small without extending the protective plate part downward.

  The protective plate according to the present invention is arranged above and below the mounting plate portion, and clamping means for clamping the mounting plate portion is fixed to the support shaft.

  In the present invention, the support shaft is inserted into the insertion hole, the mounting plate portion is sandwiched by clamping means disposed on both sides of the mounting plate portion along the support shaft, and the fixing member is Even when the mounting plate portion is fixed to the support shaft, the mounting plate portion is fixed to the support shaft, and an impact is applied to the protection plate portion, the state where the mounting plate portion is attached to the support shaft is maintained.

  In the protection plate according to the present invention, the clamping means is inserted into the insertion hole such that each end is positioned above and below the mounting plate portion, and the flange portion is positioned on the upper surface side of the mounting plate portion. A nipple, a bushing externally fitted to the support shaft, and fitted into the upper end of the nipple, a cap nut screwed into the upper end of the nipple, and a nut screwed into the lower end of the nipple It is characterized by providing.

  In the present invention, a nipple having a thread groove formed on the outer peripheral surface is disposed in the insertion hole so that each end is located on both sides of the mounting plate, and a nut is screwed to each end of the nipple. Then, the cap nut is screwed into the upper end portion of the nipple, the bush arranged between the cap nut and the upper end portion of the nipple is pressed by the cap nut, and the bush is fitted into the nipple. Further, the nut is screwed into the lower end portion of the nipple from the lower surface side of the mounting plate portion, and is formed by the nut and the flange portion located on the upper surface side of the mounting plate portion. Even if the plate is clamped, the clamping means is closely attached to the mounting plate and the support shaft, the mounting plate is stably fixed to the support shaft, and the protective plate is impacted. The plate does not come off the support shaft.

  The protective plate according to the present invention is characterized in that the nipple is a nipple having a diameter at an upper end portion larger than a diameter at a lower end portion.

  In the present invention, by using a nipple having a diameter at the upper end larger than that at the lower end, the lower end of the nipple can be easily inserted into the insertion hole, and the diameter of the cap nut depends on the upper end of the nipple. It becomes larger and it becomes easier to grip the cap nut.

  The protection plate according to the present invention is characterized in that the bush is made of an elastic member.

  In this invention, the said bush is comprised with an elastic member and a cap nut and a nipple are crimped | bonded by elastic force.

  In the protective plate according to the present invention, the bush protrudes from an upper end portion of the nipple.

  In the present invention, when the cap nut is screwed to the upper end portion of the nipple, the bush is compressed, and the cap nut and the nipple are pressure-bonded by the elastic force of the bush.

  The protective plate according to the present invention is characterized in that the outer surface of the bush is formed in a taper shape so that the diameter decreases toward the lower part.

  In the present invention, the lower end of the bush is easily fitted into the upper end of the nipple.

  In the protection plate according to the present invention, the clamping means includes two annular members into which the support shafts are inserted, the annular members are arranged above and below the attachment plate portion, and the annular members are brought close to each other to attach the attachment member. The plate portion is sandwiched, and the annular member is fixed to the support shaft.

  In the present invention, two annular members are inserted into the support shaft, the annular member is accurately positioned using the support shaft as a guide, and the annular members are brought close together in the state of being inserted into the support shaft. Hold the plate part securely.

  In the protective plate according to the present invention, a screw hole along the radial direction of the annular member is formed in the annular member, and a screw screwed into the screw hole is pressure-bonded to the support shaft. It is designed to be fixed to the support shaft.

  In the present invention, a screw is screwed into a screw hole along the radial direction of the annular member formed in the annular member, and the screwed screw is crimped to the support shaft. For this reason, the annular member is securely fixed to the support shaft, and the mounting plate portion is strongly pressed in the gap between the annular members.

  The protective plate according to the present invention is characterized in that a cutout for pulling out a seat belt is formed in the protective plate portion.

  In the present invention, since the notch for inserting the seat belt is formed, the seat belt is easily pulled out.

  The protective plate according to the present invention is characterized in that an elastic member is provided along edges of the protective plate portion and the mounting plate portion.

  In the present invention, an elastic member is provided along the edges of the protective plate portion and the mounting plate portion to prevent the driver from being injured by contacting the edges of the protective plate portion and the mounting plate portion.

  The protection plate according to the present invention is characterized in that a dialog hole for interacting with a person who gets on the rear side of the driver's seat is provided in a portion extending to the passenger seat side of the protection plate part.

  In the present invention, the communication with the person who gets on the rear side of the driver's seat is smoothly performed.

  The protective plate according to the present invention is characterized in that the protective plate portion and the mounting plate portion are made of polycarbonate.

  In the present invention, the protective plate portion and the mounting plate portion are formed of polycarbonate to improve the strength of the protective plate portion and the mounting plate portion, and even when an impact is applied to the protective plate portion, The plate and mounting plate are not damaged.

  In the protective plate according to the present invention, the protective plate portion that prevents the entry of an object into the driver's seat and the mounting plate portion to which the headrest is attached are integrally connected to improve the strength, and even when an impact is applied, the protective plate portion Can be prevented from coming off from the mounting plate portion, and the protective plate can be made compact without extending the protective plate portion downward, and can be removed from the driver's seat in a short time.

  In the protective plate according to the present invention, the mounting plate portion is clamped by the clamping means arranged above and below the mounting plate portion along the support shaft, and the clamping means is fixed to the support shaft, Even when the mounting plate portion is fixed to the support shaft and an impact is applied to the protective plate portion, the state where the mounting plate portion is attached to the support shaft is maintained to ensure the safety of the driver. Can do.

  In the protection plate according to the present invention, the nipple is inserted into the insertion hole so that the respective end portions are positioned above and below the mounting plate portion, and the cap nut and the nut are respectively screwed into the upper and lower ends of the nipple, A cap nut is screwed into the upper end portion of the nipple, and a bush disposed between the cap nut and the upper end portion of the nipple is pressed by the cap nut, so that the bush is fitted into the upper end portion of the nipple. Further, a nut is screwed into the lower end portion of the nipple from the lower surface side of the mounting plate portion, and the mounting plate portion is sandwiched by the nut and the flange portion of the nipple positioned on the upper surface side of the mounting plate portion, and clamping means Even if the mounting plate is firmly fixed to the support shaft, the mounting plate is stably fixed to the support shaft, and an impact is applied to the protective plate, the mounting plate does not come off the support shaft. The safety of the person can be ensured. In addition, the support shaft and the mounting plate can be released simply by loosening the nut, so when replacing the seat cover of the driver's seat, remove the protective plate in a short time to quickly replace the seat cover. It can be carried out.

  In the protection plate according to the present invention, the use of a nipple having a diameter at the upper end larger than the diameter at the lower end makes it easier to insert the lower end of the nipple into the insertion hole, and the cap nut has a diameter of the nipple. Since it becomes large according to the diameter of the upper end part of this, and it becomes easy to hold | grip a cap nut, attachment or removal to the nipple of a cap nut can be performed easily. Also, the cap nut can be attached to the nipple with a large moment force.

  In the protection plate according to the present invention, the bush is formed of an elastic member, and even if a shock is applied to the protection plate portion by pressing the cap nut and the nipple by elastic force, The driver's safety can be ensured without fail.

  In the protection plate according to the present invention, when the bush protrudes from the upper end of the nipple, when the cap nut is screwed into the upper end of the nipple, the bush is compressed, and the elastic force of the bush Even when the cap nut and the nipple are pressure-bonded and an impact is applied to the protective plate portion, it does not come off the support shaft, and the driver's safety can be ensured reliably.

  In the protective plate according to the present invention, by forming the outer surface of the bush in a tapered shape so that the diameter decreases toward the lower part, the lower end of the bush can be easily fitted into the upper end of the nipple. Can be attached to the nipple in a short time.

  In the protection plate according to the present invention, the two annular members are inserted into the support shaft, the annular member is accurately positioned using the support shaft as a guide, and each annular member is inserted into the support shaft. The mounting plate portion can be securely clamped by making them close to each other, and the mounting plate portion and the support shaft can be firmly fixed.

  In the protection plate according to the present invention, the screw is screwed into a screw hole along the radial direction of the annular member formed in the annular member, and the screwed screw is crimped to the support shaft to support the annular member. The mounting plate portion can be securely fixed to the shaft, the mounting plate portion can be strongly pressed by the gap between the annular members, and the mounting plate portion and the support shaft can be firmly fixed with a simple configuration.

  In the protective plate according to the present invention, a notch for pulling out the seat belt is formed so that the driver can easily pull out the seat belt.

  In the protective plate according to the present invention, an elastic member is provided along the edges of the protective plate portion and the mounting plate portion, and the driver is injured by contacting the edge of the protective plate portion and the mounting plate portion. Can be prevented.

  In the protection plate according to the present invention, the part extending to the passenger seat side of the protection plate part is provided with a dialogue hole for talking with a person who gets on the rear side of the driver seat, and the rear side of the driver seat It is possible to smoothly communicate with those who board the bus.

  In the protective plate according to the present invention, when the protective plate portion and the mounting plate portion are made of polycarbonate, the strength of the protective plate portion and the mounting plate portion is improved, and an impact is applied to the protective plate portion. Even so, the protective plate portion and the mounting plate portion are not damaged, and the state of being attached to the support shaft is maintained, and the driver's safety can be ensured.

It is a perspective view which shows the vehicle interior of the state which attached the protection board which concerns on Embodiment 1 to the support shaft. 2 is a front view of a protection plate according to Embodiment 1. FIG. 4 is a rear view of the protection plate according to Embodiment 1. FIG. 3 is a left side view of the protection plate according to Embodiment 1. FIG. 3 is a right side view of the protective plate according to Embodiment 1. FIG. 2 is a plan view of a protection plate according to Embodiment 1. FIG. 3 is a bottom view of the protection plate according to Embodiment 1. FIG. It is a longitudinal cross-sectional view in the VIII-VIII line shown in FIG. FIG. 3 is a schematic side cross-sectional view of the vicinity of the headrest in a state where the protection plate according to Embodiment 1 is attached to the support shaft. It is a schematic side sectional view of the clamping means. It is a perspective view which shows the vehicle interior of the state which attached the protection board which concerns on Embodiment 2 to the support shaft. FIG. 10 is a schematic side cross-sectional view of the vicinity of a headrest in a state where a protection plate according to Embodiment 2 is attached to a support shaft. It is a perspective view of an annular member.

(Embodiment 1)
Hereinafter, the present invention will be described in detail with reference to the drawings showing a protection plate according to Embodiment 1. 1 is a perspective view showing the inside of the vehicle with the protective plate attached to the support shaft, FIG. 2 is a front view of the protective plate, FIG. 3 is a rear view of the protective plate, FIG. 4 is a left side view of the protective plate, and FIG. FIG. 6 is a plan view of the protection plate, FIG. 7 is a bottom view of the protection plate, FIG. 8 is a longitudinal sectional view taken along line VIII-VIII shown in FIG. 6, and FIG. FIG. 10 is a schematic side cross-sectional view of the clamping means in the vicinity of the headrest when attached to the shaft.
In the figure, reference numeral 1 denotes a protective plate. As shown in FIG. 9, the protective plate 1 is supported by support shafts 11, 11 extending from a lower portion of a horizontally elongated rectangular parallelepiped headrest 10 provided in a driver's seat 100 of the vehicle. It is attached to. The support shaft 11 has a midway portion bent forward and has a dogleg shape. The support shafts 11 and 11 are inserted into two support holes provided in the upper part of the driver's seat 100 (not shown), and are fixed to the driver's seat 100.

As shown in FIGS. 2 to 8, the protection plate 1 includes a protection plate portion 2 and a mounting plate portion 3. The protective plate portion 2 and the mounting plate portion 3 are made of polycarbonate and are integrally formed. Further, the protective plate portion 2 and the mounting plate portion 3 are permeable. The protective plate portion 2 extends upward and toward the passenger seat 101 along the rear surface of the headrest 10 of the driver seat 100. The lower end portion of the protection plate portion 2 is located between the upper end portion of the backrest portion of the driver's seat 100 and the lower portion of the headrest 10. The side opposite to the passenger seat 101 of the protection plate portion 2 is formed along the side shape of the vehicle. A notch 2a for pulling out the seat belt is formed at the edge of the portion formed along the side shape of the vehicle. The side surface of the vehicle and the protection plate portion 2 are separated from each other by an appropriate length, and the seat belt is located between the side surface of the vehicle and the protection plate portion 2. The driver inserts his / her hand into the notch 2a and pulls out the seat belt.
The mounting plate portion 3 is integrally connected to the lower end portion of the protection plate portion 2 and extends forward from the lower end portion of the protection plate portion 2 along the lower surface of the headrest 10. Two insertion holes 3 a and 3 a are formed in the mounting plate portion 3 at positions corresponding to the support shafts 11 and 11.

  In the insertion hole 3 a, clamping means 50 for fixing the mounting plate portion 3 to the support shaft 11 is disposed above and below the mounting plate portion 3. The clamping means 50 includes a cylindrical nipple 51 inserted into the insertion hole 3a. The nipple 51 extends up and down across the mounting plate portion 3, and the upper end portion of the nipple 51 is located between the upper surface of the mounting plate portion 3 and the headrest 10. On the other hand, the lower end portion of the nipple 51 is located below the lower surface of the mounting plate portion 3. The nipple 51 has a flange 51 a in the middle, and the flange 51 a is close to the upper surface of the mounting plate 3. On the inner periphery of the upper end portion of the nipple 51, a taper 51b whose diameter is increased as it approaches the headrest 10 is partially formed.

  Inside the upper end portion of the nipple 51, a frustoconical rubber bushing 53 whose diameter is reduced toward the lower end portion is fitted from the lower end side, and the lower end portion of the rubber bushing 53 is the taper 51b. It is in close contact with. A through-hole is formed in the shaft core portion of the rubber bush 53, and the rubber bush 53 is fitted on the support shaft 11. Since the diameter of the hole of the rubber bush 53 is slightly smaller than that of the support shaft 11, the rubber bush 53 is in close contact with the support shaft 11. The diameter of the upper end portion of the rubber bush 53 is larger than the inner diameter of the upper end portion of the nipple 51.

  A bottomed cylindrical cap nut 52 having a through hole 52a at the bottom is screwed to the upper end of the nipple 51. At the corner of the inner bottom surface of the cap nut 52, a taper 52b inclined outward with respect to the bottom surface is formed, and the edge portion of the upper end portion of the rubber bush 53 is in pressure contact with the taper 52b. The support shaft 11 is inserted through the through hole 52a. The cap nut 52 is fastened to the upper end of the nipple 51, and the rubber bush 53 is compressed in the vertical direction by tightening the cap nut 52, and the lower end of the rubber bush 53 is in pressure contact with the taper 51 b of the nipple 51.

  An annular packing 54 is fitted on the lower end portion of the nipple 51, and the packing 54 is close to the lower surface of the mounting plate portion 3. An annular nut 55 is screwed to the lower end of the nipple 51. The nut 55 is fastened to the lower end portion of the nipple 51, and the mounting plate portion 3 is strongly pressed between the nut 55 and the flange portion 51a by the tightening of the nut 55. Further, the mounting plate portion 3 and the nut 55 are firmly fixed by the frictional force of the packing 54.

  Next, attachment of the protection plate 1 to the headrest 10 will be described. First, the lower end portion of the nipple 51 is inserted into the insertion hole 3 a from the upper surface side of the mounting plate portion 3. Then, the packing 54 is externally fitted to the lower end portion of the nipple 51 that projects downward from the lower surface of the mounting plate portion 3. Next, the nut 55 is screwed into the lower end portion of the nipple 51 and tightened. At this time, the mounting plate portion 3 is strongly pressed between the nut 55 and the flange portion 51 a by tightening the nut 55, and the nipple 51 is fixed to the mounting plate portion 3.

  Next, the cap nut 52 is attached to the support shaft 11 with its bottom portion approaching the headrest 10, and a frustoconical rubber bush 53 is attached to the support shaft 11 so as to be positioned inside the cap nut 52. At this time, the upper end portion of the rubber bush 53 is brought close to the taper 52 b of the cap nut 52. Then, the support shaft 11 to which the cap nut 52 and the rubber bush 53 are attached is inserted into the nipple 51, and the cap nut 52 is fastened to the upper end portion of the nipple 51. At this time, the lower end portion of the rubber bush 53 is in pressure contact with the taper 51 b of the nipple 51, and the upper end portion of the rubber bush 53 is in pressure contact with the taper 52 b of the cap nut 52.

  In the protective plate 1 according to the first embodiment, the protective plate portion 2 that prevents the entry of an object into the driver's seat 100 and the mounting plate portion 3 to which the headrest 10 is attached are integrally formed to improve the strength, and the impact is applied. Even when added, it is possible to prevent the protective plate portion 2 from being detached from the mounting plate portion 3. Further, the protective plate 1 can be reduced in size without extending the protective plate portion 2 downward, and can be removed from the driver's seat 100 in a short time.

  Further, the support shaft 11 is inserted into the insertion hole 3 a, and the mounting plate portion 3 is clamped by the clamping means 50 disposed above and below the mounting plate portion 3 along the support shaft 11, and the fixing member 50 is fixed to the support shaft 11. Then, the mounting plate portion 3 is fixed to the support shaft 11. Therefore, even when an impact is applied to the protection plate portion 2, the state in which the attachment plate portion 3 is attached to the support shaft 11 is maintained, and the driver's safety can be ensured.

  Further, nipples 51 having thread grooves formed on the outer peripheral surface are inserted into the insertion holes 3a so that the respective end portions are positioned above and below the mounting plate portion 3, and cap nuts 52 and nuts 55 are formed at the upper and lower ends of the nipple 51. The rubber bush 53 disposed between the cap nut 52 and the upper end portion of the nipple 51 is pressed by the cap nut 52 so that the rubber bush 53 is fitted into the nipple 51. Further, the mounting plate portion 3 is sandwiched between the nut 55 and the flange portion 51 a located on the upper surface side of the mounting plate portion 3, and the clamping means 50 is brought into close contact with the mounting plate portion 3 and the support shaft 11. Can be stably fixed to the support shaft 11, and even if an impact is applied to the protective plate portion 2, the mounting plate portion 3 does not come off from the support shaft 11, and the driver's safety can be ensured reliably. it can. Further, since the fixing of the support shaft 11 and the mounting plate portion 3 is released simply by loosening the cap nut 52, when replacing the seat cover of the driver's seat, the protective plate 1 is removed in a short time, and the seat cover Exchange work can be performed quickly.

  In the protection plate according to the present invention, the use of the nipple 51 having the upper end diameter larger than the lower end diameter facilitates the insertion of the lower end portion of the nipple 51 into the insertion hole 3a. Is increased in accordance with the diameter of the upper end portion of the nipple 51, and the cap nut 52 is easily gripped, so that the cap nut 52 can be easily attached to or removed from the nipple 51. Further, the cap nut 52 can be attached to the nipple 51 with a large moment force.

  In the protection plate according to the present invention, the bush is made of an elastic member, and the cap nut 52 and the nipple 51 are pressure-bonded by an elastic force so that even if an impact is applied to the protection plate portion 2, the protection plate is supported. The driver's safety can be reliably ensured without detaching from the shaft 11.

  In the protection plate according to the present invention, when the rubber bush 53 protrudes from the upper end portion of the nipple 51 and the cap nut 52 is screwed into the upper end portion of the nipple 51, the rubber bush 53 is compressed. Even if the cap nut 52 and the nipple 51 are crimped by the elastic force of the rubber bush 53 and an impact is applied to the protective plate portion 2, it does not come off from the support shaft 11 and ensures the driver's safety. can do.

  In the protection plate according to the present invention, the lower surface of the rubber bushing 53 is fitted into the upper end of the nipple 51 by forming the outer surface of the rubber bushing 53 in a tapered shape so that the diameter decreases toward the lower part. The rubber bush 53 can be attached to the nipple 51 in a short time.

  Further, since the notch 2a for pulling out the seat belt is formed in the protective plate portion 2, the driver can easily pull out the seat belt by inserting his / her hand into the notch 2a.

  Further, by forming the protective plate portion 2 and the mounting plate portion 3 from polycarbonate, the strength of the protective plate portion 2 and the mounting plate portion 3 is improved. The plate part 2 and the attachment plate part 3 are not damaged, and the state where the plate part 2 and the attachment plate part 3 are attached to the support shaft 11 is maintained, and the safety of the driver can be ensured.

  The protective plate 1 according to Embodiment 1 can also be used for a vehicle in which the driver's seat 100 is arranged on the left side with respect to the traveling direction, that is, a so-called left-hand drive vehicle. In this case, it goes without saying that the shape of the protective plate 1 is opposite to that of the shape used for a right-hand drive vehicle. In the first embodiment, the protective plate portion 2 and the mounting plate portion 3 are integrally formed. However, the protective plate portion 2 and the mounting plate portion 3 may be fused.

(Embodiment 2)
Hereinafter, the present invention will be described in detail with reference to the drawings showing a protection plate according to a second embodiment. 11 is a perspective view showing the interior of the vehicle with the protective plate attached to the support shaft, FIG. 12 is a schematic side sectional view of the vicinity of the headrest when the protective plate is attached to the support shaft, and FIG. 13 is a perspective view of the annular member. is there.

  A plurality of dialogue holes 2b are formed in the part of the protective plate 2 that extends toward the passenger seat 101 to communicate with a person seated in the rear seat. Two mounting holes 3a and 3a are formed in the mounting plate portion 3 at positions corresponding to the support shafts 11 and 11. The mounting plate 3 has a mounting plate disposed above and below the mounting plate portion 3 therebetween. A clamping means 60 for fixing the portion 3 to the support shaft 11 is arranged.

  The clamping means 60 includes two annular members 61, 61, and the annular members 61, 61 are arranged between the lower part of the headrest 10 and the upper surface of the mounting plate 3. The support shafts 11 are inserted through the annular members 61, respectively. A washer 62 is disposed between the annular member 61 and the mounting plate portion 3, and the support shaft 11 is inserted through the washer 62. As shown in FIG. 13, a plurality of female screws 61a along the radial direction of an annular member 61 are formed in the annular member 61, and a bottomed cylindrical shape in which a thread groove is formed on the outer peripheral surface of the female screw 61a. A cylindrical screw 63 is screwed. The cylindrical screw 63 presses the support shaft 11, and the annular member 61 is fixed to the support shaft 11 by pressing the support shaft 11 of the cylindrical screw 63.

  Two annular members 64, 64 corresponding to the support shafts 11, 11 are arranged on the lower surface side of the mounting plate portion 3, and the support shafts 11 are inserted through the annular members 64, respectively. A washer 65 is disposed between the annular member 64 and the mounting plate portion 3, and the support shaft 11 is inserted through the washer 65. A plurality of internal threads 64a toward the center of the annular member 64 are provided on the side surface of the annular member 64, and a bottomed cylindrical cylindrical screw 66 having a thread groove formed on the outer peripheral surface thereof is screwed to the internal thread 64a. is doing. The cylindrical screw 66 presses the support shaft 11, and the annular member 64 is fixed to the support shaft 11 by pressing the support shaft 11 of the cylindrical screw 66.

  The open end of the cylindrical screw 63 (66) has a hexagonal shape, and a hexagon wrench is inserted into the end and rotated in one direction. It advances toward the support shaft 11 and presses the support shaft 11. When rotated in the other direction, the cylindrical screw 63 (66) is separated from the support shaft 11, and the fixation between the annular member 61 (64) and the support shaft 11 is released.

  The upper and lower surfaces of the mounting plate portion 3 are strongly pressed by the annular members 61 and 64 via the washers 62 and 65. Therefore, the support shaft 11 and the mounting plate portion 3 are integrated via the annular members 61 and 64. Has been.

  Next, attachment of the protection plate 1 to the headrest 10 will be described. First, the annular members 61 and 61 are attached to the two support shafts 11 and 11, respectively, and the annular member 61 is brought close to the headrest 10. Then, the cylindrical screw 63 is screwed into the female screw 61 a to fix the annular member 61 to the support shaft 11. Next, a washer 62 is attached to the support shaft 11 so as to approach the annular member 61. The annular member 61 and the washer 62 are moved to predetermined positions using the support shaft 11 as a guide. Next, the support shaft 11 is inserted into the insertion hole 3 a of the attachment plate portion 3, and the upper surface of the attachment plate portion 3 and the washer 62 are brought close to each other. Then, the washer 65 and the annular member 64 are sequentially attached to the support shaft 11, and the annular member 64 is brought close to the lower surface of the attachment plate portion 3 via the washer 65. Next, the cylindrical screw 66 is screwed into the female screw 64 a to fix the annular member 64 to the support shaft 11.

  In the protection plate according to the second embodiment, the annular members 61 and 64 are inserted into the support shaft 11, and the annular members 61 and 64 are accurately positioned using the support shaft 11 as a guide. In the inserted state, the annular members 61 and 64 can be brought close to each other to securely clamp the attachment plate portion 3, and the attachment plate portion 3 and the support shaft 11 can be firmly fixed.

  Further, the cylindrical screw 63 (66) is screwed into the female screw 61a (64a) along the radial direction formed in the annular member 61 (64), and the screwed cylindrical screw 63 (66) is crimped to the support shaft 11. Thus, the annular member 61 (64) is securely fixed to the support shaft 11, the attachment plate portion 3 is strongly pressed in the gap between the annular members 61 and 64, and the attachment plate portion 3 and the support shaft 11 are simply configured. Can be firmly fixed.

  Further, the elastic member 4 is provided along the edges of the protection plate portion 2 and the mounting plate portion 3 to prevent the driver from being injured by contacting the edges of the protection plate portion 2 and the mounting plate portion 3. it can.

  Moreover, the dialog hole 2b is provided in the part extended to the passenger's seat side of the protection board part 2, and the communication with the person who got on the back side of the driver's seat, for example, a passenger, can be performed smoothly.

  Among the configurations of the protective plate 1 according to the second embodiment, the same reference numerals are given to the same configurations as those in the first embodiment, and detailed description thereof is omitted.

  In addition, you may provide the notch 2a currently formed in the protective plate which concerns on Embodiment 1 in the protective plate which concerns on Embodiment 2. FIG. Further, the protective plate according to the first embodiment may be provided with the elastic member 4 or the dialogue hole 2b provided in the protective plate according to the second embodiment.

DESCRIPTION OF SYMBOLS 1 Protective plate 2 Protective plate part 3 Mounting plate part 3a Insertion hole 4 Elastic member 10 Headrest 11 Support shaft 50, 60 Clamping means 51 Nipple 51a Hang part 52 Cap nut 53 Bushing 54 Packing 55 Nut 61, 64 Annular member 61a, 64a Female thread (Screw hole)
62, 65 Washer 63, 66 Cylindrical screw (screw)
100 Driver's seat 101 Passenger seat

Claims (13)

Provided on the rear side of the headrest of the driver's seat, a protective plate portion that prevents entry of an object into the driver's seat, and a support shaft that extends forward from the lower side of the headrest and extends from the lower portion of the headrest In the protective plate provided with a mounting plate portion attached to the mounting plate portion, an insertion hole for inserting the support shaft is provided in the mounting plate portion,
The lower end of the guard plate is located between the backrest of the driver seat and the headrest,
A protective plate, wherein a lower end portion of the protective plate portion and the mounting plate portion are integrally connected.   2. The protective plate according to claim 1, wherein clamping means that are disposed above and below the mounting plate portion and clamp the mounting plate portion are fixed to the support shaft. The clamping means is
A nipple inserted into the insertion hole such that each end is positioned above and below the mounting plate portion, and the collar portion is positioned on the upper surface side of the mounting plate portion;
A bushing that fits externally on the support shaft and that fits internally on the upper end of the nipple;
A cap nut screwed into the upper end of the nipple;
The protective plate according to claim 2, further comprising: a nut screwed into a lower end portion of the nipple.   The protective plate according to claim 3, wherein the nipple is a nipple having a diameter at an upper end portion larger than a diameter at a lower end portion.   The protection plate according to claim 3 or 4, wherein the bush is made of an elastic member.   6. The protection plate according to claim 3, wherein the bush protrudes from an upper end portion of the nipple.   The protection plate according to any one of claims 3 to 6, wherein an outer surface of the bush is formed in a tapered shape so as to be reduced in diameter toward a lower part. The clamping means includes two annular members into which the support shaft is inserted,
Each annular member is arranged above and below the mounting plate portion, and the annular plate is brought close to each other so as to sandwich the mounting plate portion,
The protective plate according to claim 2, wherein the annular member is fixed to the support shaft. A screw hole along the radial direction of the annular member is formed in the annular member,
The protective plate according to claim 8, wherein a screw screwed into the screw hole is pressed onto the support shaft to fix the annular member to the support shaft.   The protection plate according to any one of claims 1 to 9, wherein a cutout for pulling out a seat belt is formed in the protection plate portion.   The protective plate according to any one of claims 1 to 10, wherein an elastic member is provided along an edge of the protective plate portion and the mounting plate portion.   12. A dialogue hole for communicating with a person who gets on the rear side of the driver's seat is provided in a portion extending to the passenger seat side of the protective plate portion. Guard plate as described in.   The protective plate according to any one of claims 1 to 12, wherein the protective plate portion and the mounting plate portion are made of polycarbonate.

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