JPH05123U - Dental face bow - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a dental face bow which allows easy attachment and replacement of parts to an arcuate main body, and allows various adjustments during use to be performed easily, quickly and accurately. [Arrangement] An arcuate rod-shaped body (1), a pair of first support devices (2) on which a pair of ear rods (3) or a writing pen can be adjustably attached to the body, and a bite fork (5) at an intermediate portion of the body. And a pair of second support devices (4) to which the lower nose point indicating rods (6) can be adjustably mounted, respectively. The ear rod or the drawing pen can be moved only in a plane including the rod-shaped body or in a plane forming an angle with the plane.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  INDUSTRIAL APPLICABILITY The present invention may be adjustably attached to an arcuate rod-shaped body and both ends of the body. A pair of ear rods, etc. and a bite fork and a nose point pointing rod etc. in the middle of the body. Articulator for denture prosthesis, comprising a pair of supporting devices, each of which is adjustable With a dental facebow for use with the.

[0002]

[Problems to be solved by conventional techniques and devices]

  Dental face bows with various structures have been proposed and used in the past. , It takes a relatively long time to attach and detach the ear rod, bite fork, etc. and adjust the position. In addition, there were many problems such as requiring skill in various operations during use.

[0003]   The present invention has been made in view of the above problems, and its purpose is to , Easy to attach and replace parts to the bow body, and make various adjustments during use The aim is to provide a dental face bow that can be performed easily, quickly and accurately. is there.

[0004]

[Means for Solving the Problems]

  In order to achieve the above-mentioned object, the dental face bow according to the present invention comprises a bow-shaped body. The supporting device for adjusting the ear rod and the writing pen at the end is the bow-shaped body. Is rotatably attached to the end of the first diametrically first through hole and axially first First support shafts each having a first screw hole communicating with the through hole, and a first support shaft The first through hole is movably fitted and can be aligned with the first through hole in the diametrical direction. Also, it is possible to slide in common with the collar that has a small diameter second through hole and the first and second through holes. A support rod formed by engraving a groove extending in parallel with the axis on the peripheral surface, 1 The screw tip is screwed into the screw hole so that when it is screwed in, the tip enters the groove. And a first fixing shaft for fixing the supporting rod together with the first supporting shaft and the collar to the main body. The support rod, which is fixed to the tip of the support rod and slides the ear rod or drawing pen in the diametrical direction. A second screw hole that movably inserts into the third through hole and also communicates with the third through hole in the axial direction. And the second cylindrical pipes, which are respectively drilled, are screwed into the second screw hole so as to be able to move forward and backward When the tip of the ear rod touches the peripheral surface of the ear rod or drawing pen, And a second fixing screw capable of fixing the writing pen to the second support shaft.

[0005]   In addition, a bite fork and a nose point indicating rod are adjustably attached to the middle of the bow body. The second supporting device for kicking is loosely fitted to the main body and is diametrically oriented. A third screw hole extending in the axial direction with a third through hole having a diameter larger than that of the rod part And a third fixing screw screwed into the third screw hole so as to be able to move forward and backward, It is movably housed in the cylinder and is pressed when the third fixing screw is screwed in. Cylindrical body that holds the rod portion of the fork, etc. in the state of being inserted into the third through hole And a pair of clamping pieces that can fix the to the arcuate body.

[0006]

[Action]

  The diameter of the second through hole is smaller than the diameter of the first through hole, and the support rod has an axis line. Parallel grooves are engraved so that the tip of the first fixing screw can enter into this groove. Therefore, the support rod is inserted through the first and second through holes in common and the first fixing screw is attached. When tightened, the support rod is pressed and fixed to the inner peripheral wall of the first through hole, The rotation of the support rod is prevented by the cooperation of the groove and the first fixing screw. That conclusion As a result, the ear rod or writing pen is securely fixed in the plane containing the arcuate body. or Even if the first fixing screw is loosened slightly to release the fixed state, the tip remains in the groove. Therefore, even if the insertion depth of the support rod is changed, the direction of the ear rod or the writing pen does not change. does not change.

[0007]   Also, the diameter of the third through hole is slightly larger than the diameter of the rod part such as the bite fork. From the above, it can be clamped even if it is fixed to the arcuate body by tightening the third fixing screw. If a force greater than the frictional force between the piece and the rod is applied, a bite fork, etc. Can be moved slightly within the plane containing the arcuate body and position adjustment can be performed. It

[0008]

【Example】

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.   In FIG. 1, 1 is an arcuate rod-shaped body having a circular cross section, 2 is both ends of the body 1. A first supporting device for adjusting each of the ear rods 3 (or the drawing pens), 4 can adjust the bite fork 5 and the nose point indicating rod 6 in the middle part of the main body 1, respectively It is a 2nd support device for attachment.

[0009]   FIG. 2 is an enlarged sectional view of the supporting device 2. In the figure, 201 is fixed to the end of the main body 1. Is rotatably attached to the supported support 1a and has a first through hole 201a in the diametrical direction. Also, a first support shaft having screw holes 201b communicating with the first through hole in the axial direction, respectively. , 202 are rotatably fitted to the first support shaft 201 and have a first through hole in the diametrical direction. A second through hole 202a which can be aligned with 201a and has a smaller diameter than the first through hole 201a. , 203 is common to the first and second through holes 201a and 202a. A groove 203a which is slidably inserted and extends parallel to the axis is formed on the peripheral surface. The support rod 204 having a circular cross section is screwed into the first screw hole 201b so as to be movable back and forth. When it is screwed into the groove 203a, its tip enters the groove 203a, and the first support shaft 201 and the collar A first fixing screw capable of fixing the support rod 203 to the main body 1 via the screw 202, 205 Is a stopper for preventing the first support shaft 201 from coming off the support 1a, 206 is fixed to the tip of the support rod 203, and the ear rod 3 (or And a third penetrating hole 206a through which a drawing pen can be slidably inserted, and a third penetrating hole in the axial direction. The second support shafts 207 each having a second screw hole 206b communicating with the hole 206a are It is screwed in the second screw hole 206b so as to be able to move forward and backward, and when it is screwed in, the tip end thereof is an ear rod. The ear rod 3 (or the writing pen) by contacting the peripheral surface of the head (or the writing pen). ) Is a second fixing screw for fixing the second fixing shaft 206 to the second supporting shaft 206. The support 1a and the strike The maximum separation distance S from the top 205 is the diameter of the first through hole 201a and the second through hole 201a. It is set to be smaller than the difference with the hole 202a.

[0010]   FIG. 3 is an enlarged cross-sectional view of the support device 4. In the figure, 401 is loosely fitted to the main body 1. Diameter larger than the rod part of the bite fork 5 (or the nose point indicating rod 6) And third screw holes 401b extending in the axial direction on the tops of the third through holes 401a. And a third fixing screw 402, which is screwed into the third screw hole 401b so as to be able to move forward and backward. , 403, 404 are movably housed inside the cylindrical body 401 and When the screw 402 is screwed in, it is pressed and the bite fork 5 (or the nose point indicating rod 6 ), The rod portion is sandwiched in the third through hole, and the cylindrical body 401 is A pair of sandwiching pieces that can be fixed to No. 1 and 405 is a sandwiching piece when the third fixing screw 402 is screwed in. Clamping the main body 1 with 404 to clamp the cylindrical body 401 to the main body 1 One piece, 406 is screwed to the open end of the cylindrical body 401 for preventing the holding piece 405 from falling off. It is a closed lid. The diameter of the third through hole 401a is the bite fork 5 (or the nose). It is drilled so that it is slightly larger than the diameter of the rod portion of the lower point indicating rod 6). It

[0011]   Since the Faith Bow of the present invention is configured as described above, it is not suitable for use. When inserting the heads 3 and 3 into the ear canal, fix them by tightening the fixing screw 204. Adjusting the ear rods 3, 3 easily to the proper position by loosening the screw 207 You can That is, when the fixing screw 204 is tightened in the state shown in FIG. 3a to prevent rotation of the support rod 203, and then to the collar 202 Move the support shaft 201 to the right until the stopper 205 contacts the opposite end surface of the support 1a. Make it slide. Therefore, when the fixing screw 204 is fully tightened, the collar 2 The end surface of 03 is strongly pressed against the opposite end surface of the support 1a, and the support rod 203 has a through hole. Since it is strongly sandwiched between the opposing inner walls of 201a and 202a, the support rod 2 03 slides with respect to the support shaft 201 and the collar 202. It is fixed to the main body 1 so that it cannot rotate together with the collar 202. Also solid When the constant screw 207 is tightened, the ear rod 3 is fixed to the support shaft 206. This place When the support shaft 201 is rotated, the end face of the support 1a, the collar 202 and the stopper 20 are rotated. Since it is blocked only by the frictional force due to the pressure contact with the facing end surface of 5, If a rotational force is applied to the support rod 203, it will be supported even if the fixing screw 204 is tightened. It is possible to slightly rotate the holding shaft 201 and the collar 202. This is 1 Prevent damage and deformation of parts when abnormal external force is applied to the support device, and This ensures fine adjustment of the position of the drive 3. As is clear from the above explanation, By slightly tightening the constant screw 204, the support rod for the plane including the arcuate body 1 is supported. The angle θ (FIG. 4) formed by the plane including the pad 203 can be easily adjusted. Therefore, with the ear rod 3 still set in the ear canal, the plane including the arcuate main body 3 is flushed. Easy and accurate adjustments such as matching with the Neckhult plane or Campel plane You can

[0012]   In the second supporting device 4, if the fixing screw 402 is tightened, the holding piece 403 or Since the 404 is pressed toward the main body 1, the bite fork 5 (or under the nose) The rod portion of the point indicating rod 6) is strongly pinched, and the holding pieces 404 and 405 The main body 1 is strongly clamped by. Therefore, the bite fork 5 and the lower nose point indicator lock The door 6 can be fixed in the position shown in FIG. In this case, the through hole 401 The diameter of a is slightly smaller than the diameter of the rod portion of the bite fork 5 and the nose point indicating rod 6. Since it is selected to be large, even if the fixing screw 402 is tightened, Rather than the frictional force due to the pressure contact between the lower end surface of the fixing screw 402 and the top surface of the holding piece 403, If a large external force is applied to the bite fork 5 and the nose point indicator rod 6, these will be slightly moved. It is possible to This is a bite fork or lower nose after setting once Guarantee fine adjustment of the posture of the pointing rod and the position and tilt with respect to the plane including the bow-shaped body 1. It is something.

[0013]   The above-mentioned advantage is obtained by replacing the ear rod 3 with a drawing pen, for example, an extraoral drawing of a sagittal condylar path. Even when applying the diameter measurement method, it can be used very effectively, and the external drawing diameter measurement method is used. Is very easy, fast and appropriate for both Can be used for

[0014]

[Effect of device]

  As described above, according to the present invention, it is easy to attach and replace various parts to the bow body. Moreover, various adjustments can be performed easily, quickly and accurately during use, which is extremely useful. It is possible to provide a convenient dental face bow.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a dental face bow according to the present invention.

FIG. 2 is an enlarged cross-sectional view of a first supporting device.

FIG. 3 is an enlarged cross-sectional view of a second supporting device.

FIG. 4 is an enlarged right side view of the first support device shown in FIG.

[Explanation of symbols]

1 Bar-shaped body 2 First support device 3 ear rod 4 Second support device 5 bit fork 6 Nasal point indicator rod 201 First support shaft 202 colors 203 First fixing screw 205 stopper 206 Second support shaft 207 Second fixing screw 401 cylindrical body 402 Third fixing screw 403,404,405 clamping piece 406 lid

Claims (2)

[Scope of utility model registration request] 1. An arcuate rod-shaped body, a pair of ear rods that can be adjustably attached to both ends of the body via first supporting devices, and a bite fork and a nose point pointing rod in the middle of the body. A dental face bow comprising a pair of second support devices each of which is adjustable.
The support device is rotatably attached to the end portion of the main body, and has a first support hole in which a first through hole is diametrically formed and a first screw hole communicating with the first through hole is axially formed. A shaft and a collar that is rotatably fitted to the first support shaft, is capable of being aligned with the first through hole in a diametrical direction, and has a second through hole having a diameter smaller than that of the first through hole. A support rod which is slidably inserted into the first and second through holes in common, and in which a groove extending parallel to the axis is formed on the peripheral surface thereof;
A first fixing screw which is screwed in a screw hole so as to be able to move back and forth, and when screwed into the screw hole, the tip of the screw is inserted into the groove to fix the support rod to the main body through the first support shaft and the collar. And a third screw hole fixed to the tip of the support rod and capable of slidably inserting the ear rod in the diameter direction, and a second screw hole communicating with the third through hole in the axial direction thereof. The second support shaft provided is screwed into the second screw hole so as to advance and retreat, and when screwed into the second support shaft, the tip thereof abuts on the peripheral surface of the ear rod to move the ear rod to the second support shaft.
A dental face bow comprising a second fixing screw that can be fixed to a support shaft. 2. The second supporting device is loosely fitted to the main body, and has a third through hole having a diameter larger than that of a rod portion such as a bite fork in the diametrical direction, and a third screw hole extending in the axial direction at the apex. And a third fixing screw screwed into the third screw hole so as to move forward and backward, and when the third fixing screw is movably housed in the cylindrical body and screwed into the third fixing screw. It comprises a pair of clamping pieces that are pressed to clamp the rod part such as the bite fork inserted in the third through hole and fix the cylindrical body to the main body. Item 1. The dental face bow according to Item 1.