JP2012081327A - Attachment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attachment for fastening the prosthetic teeth and maintaining teeth which can prevent a latch from coming off during chewing and which can be mass produced and.SOLUTION: The attachment 100 has a body member 10, a coupling member 20, a stopper member 30, and a spring member 40. A protruding part 101 and the body member 10 are coupled when the coupling member 20 is inserted into a through-hole 101b arranged in the protruding part 101. The body member 10 is molded of resin and the stopper member 30 is located in a charging opening side by the biasing force of the spring member 40. Consequently, it is possible to prevent the coupling member 20 from coming off and the attachment can be mass produced.

Description

  The present invention relates to an attachment as a connector for connecting a denture and a maintenance tooth.

  Conventionally, an attachment 1 as shown in FIG. 10 is used as a connector for connecting a denture and a maintenance tooth. FIG. 10A shows a state in which the connecting member 3 is inserted into the main body member 2. FIG. 10B shows a state in which the connecting member 3 comes out of the main body member 2 and the connection is released.

  As shown in FIG. 10, the attachment 1 includes a main body member 2 formed by connecting two tube members 2a and 2b in parallel, a U-shaped connecting member 3 including a pin 3a, a guide pin 3b, and a holding portion 3c. The stopper member 4 is screwed into the end of the guide pin 3b and prevents the connecting member 3 from falling off. The tube material 2a is provided with a cut portion that fits into a convex portion provided on the maintenance tooth.

  The connecting member 3 and the stopper member 4 of the attachment 1 are freely movable from the state shown in FIG. 10A to the state shown in FIG. When the state shown in FIG. 10B is reached, the connection is released.

  Moreover, the maintenance apparatus of the partial denture which improves the stability of an attachment is proposed (for example, refer patent document 1).

JP 2003-180714 A

  However, the attachment 1 described above has a problem in that a toothpick comes out during mastication, and the protruding portion hits the cheek and causes a sense of discomfort.

  Further, the main body member 2 of the attachment 1 described above is unsuitable for mass production because the two tube members 2a and 2b are formed by handmade by the coining method.

  Moreover, although the maintenance apparatus of the partial denture described in patent document 1 can improve the stability during wearing, the pull-out problem of the toothpick during mastication was not solved.

  Therefore, the present invention has been made in consideration of such problems, and an object of the present invention is to provide an attachment that can prevent the pulling out of the pin during chewing and enables mass production.

  In order to solve the above-mentioned problems, an attachment according to the present invention is an attachment for securing a denture and a maintenance tooth, a recess that fits into a projection provided on the maintenance tooth, and a first that penetrates both sides of the recess. A main body member having a first through hole and a second through hole formed in parallel with the first through hole, and having a large diameter portion and a small diameter portion, and insertable into the first through hole A U-shaped connecting member having a first pin and a second pin that can be inserted into the second through-hole, and an end of the second pin inserted into the second through-hole; A stopper member that prevents the connecting member from dropping off, and a spring member that is attached to the second through hole, is stopped by the stopper member, and is biased so as to prevent the connecting member from coming off, The first pin of the connecting member is in front of the body member When inserted into the first through hole and the through hole provided in the protrusion, and the body member and the convex portion is characterized in being connected.

  For example, the first pin is formed to be shorter than the second pin so that the tip portion is positioned at the substantially central portion of the recess when inserted into the second through hole. A slope for guiding the insertion of the first pin is formed.

  Further, the attachment according to the present invention is an attachment for connecting a denture and a maintenance tooth, a concave portion that fits into a convex portion provided in the maintenance tooth, a first through hole that penetrates both sides of the concave portion, And a main body member having a second through hole formed in parallel with the first through hole having a large diameter portion and a small diameter portion, a first pin insertable into the first through hole, and the A U-shaped connecting member having a second pin that can be inserted into the second through-hole, and an end of the second pin inserted into the second through-hole, so that the connecting member falls off. And a stopper member that is attached to the second through hole and has an inner diameter slightly smaller than the outer shape of the stopper member. The first pin of the connecting member has the first pin A through hole provided in the first through hole and the convex portion of the main body member. When inserted into the hole, it is characterized in that for connecting the body member and the convex portion.

  For example, the main body member is formed by a resin processing method or a machining method.

  According to the present invention, by providing a spring member or an O-ring for preventing the connecting member from coming out, it is easy to remove the stopper member when connecting the attachment and the convex portion provided on the maintenance tooth. And can be prevented from slipping out of the pin (connecting member) during mastication.

  In addition, the first pin is formed shorter than the second pin so that the tip end portion is positioned substantially at the center of the recess when inserted into the second through hole. By forming the inclined surface that guides the insertion, the operation of connecting the attachment and the convex portion provided on the maintenance tooth can be easily performed. The main body member can be mass-produced by being formed by a resin processing method or a machining method.

It is an exploded view showing the composition of attachment 100 of a 1st embodiment. 1 is a perspective view showing a configuration of an attachment 100. FIG. 2 is a plan view showing a configuration of an attachment 100. FIG. It is an exploded view which shows the structure of the attachment 200 of 2nd Embodiment. 6 is a plan view showing an operation state of the attachment 200. FIG. It is a perspective view which shows the structure of the convex part 201 provided in the maintenance tooth. It is a figure which shows the state of the connection operation | movement of the attachment. It is a figure which shows the structure of the attachment 300 of 3rd Embodiment. It is a figure which shows the assembly procedure of the attachment 300. FIG. It is a perspective view which shows the structure of the conventional attachment 1. FIG.

  Hereinafter, the form for carrying out the attachment concerning the present invention is explained with reference to figures. The attachment according to the present invention is for connecting the denture and the maintenance tooth.

  FIG. 1 is an exploded view showing a configuration of an attachment 100 according to the first embodiment of the present invention. In FIG. 1, the projection 100 provided in the attachment 100 and the maintenance tooth is shown. FIG. 2 is a perspective view showing the configuration of the attachment 100. In FIG. 2, the state which connected the attachment 100 and the convex part 101 provided in the maintenance tooth | gear is shown. FIG. 3 is a plan view showing the configuration of the attachment 100. In FIG. 3, a part of the attachment 100 is shown in a sectional view.

  As shown in FIGS. 1 to 3, the attachment 100 includes a main body member 10, a connecting member 20, a stopper member 30, and a spring member 40. Moreover, the convex part 101 provided in the maintenance tooth T has the cylindrical surface 101a, and the through-hole 101b is provided. When the first pin 21a of the connecting member 20 is inserted into the through hole 101b, the convex portion 101 and the main body member 10 are connected.

  The main body member 10 includes a first cylindrical portion 11, a second cylindrical portion 14, and an attachment portion 17 for attaching to a denture. The first cylindrical portion 11 is formed with a concave portion 13 that fits with the convex portion 101 provided on the maintenance tooth, and a first through hole 12 that penetrates both sides of the concave portion 13. The second cylindrical portion 14 has a second through hole 15 having a large diameter portion (second through hole) 15 and a small diameter portion 16 formed in parallel to the first through hole 12. Is formed. The attachment portion 17 is provided with an attachment hole 18. A plurality of attachment holes 18 may be provided in the attachment portion 17.

  The connecting member 20 is formed in a U shape from a metal material, and includes a first pin 21 a that can be inserted into the first through hole 12, a second pin 21 b that can be inserted into the second through hole 15, and a knob 22. It consists of. A male screw 21c is formed at the end of the second pin 21b. The first pin 21a is a pin and the second pin 21b is a guide pin. In this case, the first pin 21a and the second pin 21b have substantially the same length.

  The stopper member 30 has a cylindrical shape, and is provided with a screw hole 31 at one end and a groove 32 for inserting a driver at the other end. The stopper member 30 is screwed into the end portion of the second pin 21b inserted into the second through hole 15 to prevent the connecting member 20 from falling off. Further, a groove 32 for the driver D is formed on the end surface of the stopper member 30.

  The spring member 40 is a compression spring. The inner diameter of the spring member 40 can be inserted into the second pin 21b, and the outer diameter can be inserted into the large diameter portion 15 of the second through hole. The spring member 40 works so as to always insert the connecting member 20 deeply into the main body member 10.

  As a procedure for assembling the attachment 100, first, as shown in FIG. 3B, the spring member 40 is inserted into the large diameter portion 15 of the second through hole. Next, as shown in FIG. 3C, the connecting member 20 is inserted into the first through hole 12 and the second through hole 15, and the stopper member 30 is inserted into the male screw 21c at the end of the second pin 21b. Screw in. In this case, the stopper member 30 is positioned on the loading inlet side by the biasing of the spring member 40. Therefore, unless the connection member 20 is pulled out by holding the knob 22, the connection member 20 remains inserted.

  On the other hand, when the connecting member 20 is pulled out by holding the knob 22, the spring member 40 is compressed by the stopper member 30 and the first pin 21 a of the connecting member 20 is projected as shown in FIG. It will come out of the through-hole 101b, and will be in the state where connection is cancelled.

  As described above, in the present embodiment, the attachment 100 includes the main body member 10, the connecting member 20, the stopper member 30, and the spring member 40. When the connecting member 20 is inserted into the through hole 101 b provided in the convex portion 101, the convex portion 101 and the main body member 10 are connected. The main body member 10 is molded of resin, and the stopper member 30 is positioned on the loading inlet side by the bias of the spring member 40.

  Thereby, when connecting the attachment 100 and the convex part 101 provided in the maintenance tooth T, it can carry out easily, without removing the stopper member 30, and it pulls out the pinch (connection member 20) during mastication. Can be prevented. Moreover, the main body member 10 can be mass-produced by being molded with a resin, and can be molded by being combined with metal dentures and metal teeth.

  FIG. 4 is an exploded view showing the configuration of the attachment 200 according to the second embodiment of the present invention. FIG. 5 is a plan view showing an operation state of the attachment 200. 4 and 5, a part of the attachment 200 is shown in a sectional view.

  As shown in FIGS. 4 and 5, the attachment 200 has the same configuration as the attachment 100 of the first embodiment described above except that the first pin 21A of the connecting member 20A is formed short.

  Further, in this case, as shown in FIG. 6, the convex portion 201 provided on the maintenance tooth T has a slope 201b formed on one end side of the protruding portion 201a, and a through hole 201c in the horizontal direction at the root of the protruding portion 201a. Been formed. The slope 201b has a function of guiding the tip of the first pin 21A.

  The attachment 200 includes a main body member 10, a connecting member 20 </ b> A, a stopper member 30, and a spring member 40. When the first pin 21A of the connecting member 20A is inserted into the through hole 201c provided in the convex portion 201, the convex portion 201 and the main body member 10 are connected.

  The connecting member 20 </ b> A is formed in a U shape from a metal material, and includes a first pin 21 </ b> A that can be inserted into the first through hole 12, a second pin 21 </ b> B that can be inserted into the second through hole 15, and a knob 22. It consists of. A male screw 21C is formed at the end of the second pin 21B. Further, the first pin 21A of the connecting member 20A is shorter than the second pin 21B, and the tip thereof is formed so as to contact the inclined surface 201b. Therefore, the first pin 21A of the connecting member 20A is formed shorter than the first pin 21a of the first embodiment described above.

  FIG. 7 is a diagram illustrating a state of the connecting operation of the attachment 200. When connecting the attachment 200 and the convex portion 201 provided on the maintenance tooth T, first, the concave portion 13 of the body member 10 of the attachment 200 after assembly is provided on the maintenance tooth T as shown in FIG. The protrusions 201 are fitted from above. In this case, the end portion of the first pin 21 </ b> A formed short comes into contact with the slope 201 b of the convex portion 201.

  Next, as shown in FIG. 7B, when the main body member 10 is pushed downward, the end portion of the first pin 21 </ b> A is guided by the inclined surface 201 b of the convex portion 201, against the bias of the spring member 40. The connecting member 20A is pushed out.

  And as shown in FIG.7 (c), when the main body member 10 was further pushed down, the fundamental through-hole 201c of the projection part 201a and the 1st through-hole 12 of the main body member 10 corresponded (coaxial). When the spring member 40 is biased, the end of the first pin 21A is inserted into the through hole 201c. Thereby, the attachment 200 and the convex part 201 provided in the maintenance tooth T are connected.

  Thus, in the present embodiment, the attachment 200 includes the main body member 10, the connecting member 20A, the stopper member 30, and the spring member 40. The first pin 21A of the connecting member 20A is formed short. Further, the convex portion 201 provided on the maintenance tooth T has a slope 201b formed on one end side of the protruding portion 201a and a through hole 201c formed in the horizontal direction at the root of the protruding portion 201a.

  As a result, the same effects as those of the first embodiment described above can be obtained, and the operation of connecting the attachment 200 and the convex portion 201 provided on the maintenance tooth T is easily performed.

  FIG. 8 is a diagram illustrating a configuration of an attachment 300 according to the third embodiment of this invention. FIG. 8A is a plan (partial cross-sectional) view of the attachment 300. FIG. 8B is a side view of the attachment 300. FIG. 9 is a diagram illustrating an assembly procedure of the attachment 300.

  As shown in FIG. 8, the attachment 300 includes a main body member 10 </ b> A, a connecting member 20, a stopper member 30, an O-ring 50, and a fixing member 60. When the connecting member 20 is inserted into the through hole 101 b provided in the convex portion 101, the convex portion 101 and the main body member 10 are connected.

  10 A of main body members are comprised from the 1st cylindrical part 11 integrally molded with resin, the 2nd cylindrical part 14, and the attaching part 17 for attaching to a denture. The first cylindrical portion 11 is formed with a concave portion 13 that fits into the convex portion 101 provided on the maintenance tooth, and a first through hole 12 that penetrates both sides of the concave portion 13. The second cylindrical portion 14 has a second through-hole formed in parallel to the first through-hole 12 having an O-ring mounting portion 15 a, a large-diameter portion 15, and a small-diameter portion 16. ing. The attachment portion 17 is provided with an attachment hole 18.

  The O-ring 50 is mounted on the O-ring mounting portion 15 a of the second through hole and is fixed by the fixing member 60. The O-ring 50 has an inner diameter slightly smaller than the outer diameter of the stopper member 30. Thereby, the movement of the stopper member 30 can be restricted. Further, when the connecting member 20 is pulled out with a constant force, the stopper member 30 can pass through the O-ring 50.

  The fixing member 60 is formed in a cylindrical shape. The fixing member 60 has a male screw 61 formed on the outer peripheral surface, an inner diameter slightly larger than the outer diameter of the stopper member 30, and a groove 62 formed on the outer end surface. By providing the groove 62, it can be rotated by a flat-blade screwdriver or the like when mounted on the main body member 10A.

  Further, as shown in FIGS. 8 and 9, the diameter of the small diameter portion 16 is d0, the diameter of the large diameter portion 15 is d1, the inner diameter of the O-ring 50 is d2, and the inner diameter of the fixing member 60 is d3. . Here, the outer diameter of the stopper member 30 is substantially the same as the diameter d1 of the large-diameter portion 15, and the diameter of the large-diameter portion 15 and the inner diameter of the fixing member 60 are the same (that is, d1 = d3). The inner diameter of the O-ring 50 is slightly smaller than the outer diameter of the stopper member 30 (that is, d2 <d1 = d3).

  As for the assembly procedure of the attachment 300, first, as shown in FIG. 9A, the connecting member 20 and the stopper member 30 are inserted from both sides of the main body member 10A, and the stopper member 30 is inserted into the second pin 21b of the connecting member 20. Screwed onto the male screw 21c.

  Next, as shown in FIG. 9B, the O-ring 50 is moved to the O-ring 50 with the stopper member 30 positioned at the large-diameter portion 15 of the second through-hole by moving the connecting member 20 in the direction of coming out. It attaches to the attaching part 15a.

  Next, as shown in FIG. 9C, the fixing member 60 is screwed into the O-ring mounting portion 15 a to fix the O-ring 50. FIG. 9D shows a state where the fixing member 60 is mounted.

  When the attachment 300 and the convex portion 101 provided on the maintenance tooth T are connected, when the connecting member 20 is pushed into the main body member 10A, the stopper member 30 passes through the O-ring 50 and is positioned inside the fixing member 60. The state shown in FIG.

  As described above, in the present embodiment, the attachment 300 includes the main body member 10 </ b> A, the connecting member 20, the stopper member 30, the O-ring 50, and the fixing member 60. The O-ring 50 has an inner diameter slightly smaller than the outer diameter of the stopper member 30.

  Thereby, the movement of the stopper member 30 can be restricted, and the same effect as in the first embodiment described above can be obtained.

  In the above-described embodiment, the main body members 10 and 10A are molded from resin, but the present invention is not limited to this. You may make it shape | mold with a metal material. It can be molded by being combined with metal dentures and metal teeth. Alternatively, it may be formed by a precision machining method.

DESCRIPTION OF SYMBOLS 1 Conventional attachment 2 Main body member 2a, 2b Tube material 3 Connecting member 3a Pin 3b Guide pin 3c Holding part 4 Stopper member 10, 10A Main body member 11 1st cylindrical part 12 1st through-hole 13 Recessed part 14 2nd Cylindrical part 15 Large diameter part (second through hole)
15a O-ring mounting portion 16 narrow diameter portion 17 mounting portion 18 mounting hole 20, 20A connecting member 21a, 21A first pin 21b, 21B second pin 21c, 21C male screw 22 knob 30 stopper member 31 screw hole 32 groove 40 Spring member 50 O-ring 60 Fixing member 61 Male screw 62 Groove 100, 200, 300 Attachment 101, 201 Convex part 101a Cylindrical surface 101b Through hole 201a Protruding part 201b Slope 201c Through hole D Driver

Claims (4)

In the attachment to hold the denture and maintenance teeth together,
A concave portion that fits into a convex portion provided on the maintenance tooth, a first through hole that penetrates both sides of the concave portion, and a large diameter portion and a small diameter portion that are formed in parallel with the first through hole. A body member having a second through hole formed;
A U-shaped connecting member having a first pin insertable into the first through hole and a second pin insertable into the second through hole;
A stopper member that is screwed into an end portion of the second pin inserted into the second through hole and prevents the connection member from dropping off;
A spring member attached to the second through hole, stopped by the stopper member, and biased to prevent the connecting member from coming out;
When the first pin of the connecting member is inserted into the first through hole of the main body member and the through hole provided in the convex portion, the convex portion and the main body member are connected to each other. An attachment characterized by that. The first pin is formed to be shorter than the second pin so that a tip end portion is located at a substantially central portion of the recess in a state where the first pin is inserted into the second through hole,
The attachment according to claim 1, wherein an inclined surface that guides insertion of the first pin is formed on the convex portion. In the attachment to hold the denture and maintenance teeth together,
A concave portion that fits into a convex portion provided on the maintenance tooth, a first through hole that penetrates both sides of the concave portion, and a large diameter portion and a small diameter portion that are formed in parallel with the first through hole. A body member having a second through hole formed;
A U-shaped connecting member having a first pin insertable into the first through hole and a second pin insertable into the second through hole;
A stopper member that is screwed into an end portion of the second pin inserted into the second through hole and prevents the connection member from dropping off;
An O-ring made of an elastic material that is attached to the second through-hole and has an inner diameter slightly smaller than the outer shape of the stopper member;
When the first pin of the connecting member is inserted into the first through hole of the main body member and the through hole provided in the convex portion, the convex portion and the main body member are connected to each other. Attachment characterized by. The attachment according to any one of claims 1 to 3, wherein the main body member is formed by a resin processing method or a machining method.

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