JP2023110553A - instrument holder - Google Patents

Abstract

To provide an instrument holder which can smoothly, safely and hygienically handle an instrument by holding the instrument in a standing attitude in the time of use and holding the instrument in an attitude that is difficult to be in contact with a practitioner in the time of non-use.SOLUTION: A holder part 15 of an instrument holder 12 includes: a pair of support body parts 16 which is fixed to a pedestal part 13; a rotation body part 23 which is supported by the support body part 16 and is rotatable with respect to the support body part 16; a holder body part 31 which is attached to the rotation body part 23; and a roller 45 which supports an instrument hose of an instrument detached from the holder part 15 so as to deviate from a rotational axis A. By rotating the rotation body part 23, the holder part 15 is changed alternately to the backward-tilt holding state in which the holder part can hold the instrument in the backward-tilt attitude and the frontward-tilt stand-by state in which the holder part can hold the instrument in the frontward-tilt attitude.SELECTED DRAWING: Figure 5

Description

TECHNICAL FIELD The present invention relates to an instrument holder for holding instruments used in dental practice.

2. Description of the Related Art Conventionally, a dental treatment apparatus installed in a dental clinic is equipped with an instrument holder holding an instrument. In general, the instrument holder is placed in a position in which the head portion of the instrument faces the front side as viewed from a dentist, dental hygienist, etc. (hereinafter referred to as "practitioner"). , there is a possibility that the head may come into contact with the practitioner or surrounding equipment. If a sharp blade such as a cutting bar or scaler tip is attached to the head, it is dangerous and unsanitary for the blade to come into contact with the operator.

For example, the invention described in Patent Document 1 below (hereinafter referred to as the "publicly known invention in the literature") is a posture in which the head portion of the instrument faces the back side when viewed from the operator. holds. More specifically, the invention known in the literature has an instrument holder provided on the upper surface of a flat instrument fixing plate, and the instrument holder is placed on the instrument holder with the head portion facing the back side. The instrument is held in a horizontal position. Therefore, compared with the case where the instrument is held with the head facing forward, the operator is less likely to come into contact with the head, which is safe and hygienic.

Japanese Patent No. 3587668

However, in the inventions known in the literature, as described above, the instruments are held in a horizontal state, which may be difficult for the operator to handle. In other words, the method of gripping an instrument varies from practitioner to practitioner. For example, an instrument held in an upright position is gripped and held in a different grip depending on the treatment, and an instrument held in a horizontal position is used. The easiness of handling is different from the case of grasping the mento and changing the way of gripping according to the treatment.

The present invention has been proposed in view of the above circumstances. In other words, the instruments are held in an upright position when in use, and held in a position that makes it difficult for the operator to come in contact with them when not in use, so that the instruments can be handled smoothly, safely and hygienically. To provide an instrument holder capable of

In order to achieve the above object, an instrument holder according to the present invention is provided in such a way that the tip of the instrument is tilted forward from a backward tilting holding state in which the tip of the instrument is tilted rearward. a holder portion that rotates in a forward tilting posture and enters a forward tilting standby state, wherein the holder portion is individually rotatable, and the instrument removed from the holder portion is a hose supporting portion for supporting a hose; maintaining the rearwardly inclined holding state in a state in which the instrument is held by the holder portion; After being returned to the holder part in an arbitrary posture between the tilted holding state and the forward tilting standby state, the rearward tilting holding state is established.

In the instrument holder according to the present invention, the rotating shaft of the holder part is located in an insertion hole into which the instrument is inserted in the holder part, and the hose support part is detached from the holder part. It is provided at a position that supports the hose of the instrument at a position shifted from the rotation axis of the holder section.

An instrument holder according to the present invention is characterized by comprising a regulating portion that displaces the hose of the instrument removed from the holder portion from the rotation axis of the holder portion.

In the instrument holder according to the present invention, the axis of rotation of the holder section intersects the axis of the insertion hole into which the instrument is inserted, and in the forward tilting standby state, the regulation section is configured so as to prevent the insertion of the instrument. It is characterized by being below an imaginary axis passing through the axis of the hole.

An instrument holder according to the present invention is characterized by comprising a detection section that detects the presence or absence of the instrument at or near the rotation axis of the holder section.

The instrument holder according to the present invention is characterized by comprising state holding means for maintaining the forward tilting standby state.

The instrument holder according to the present invention is characterized in that the hose support section is a roller and is arranged apart from the instrument held by the holder section.

In the instrument holder according to the present invention, the holder portion includes a tubular portion forming an insertion hole into which the instrument is inserted, and a front portion of the tubular portion that is open and communicates with the insertion hole. and an open portion, wherein the open portion is formed to have a width through which the hose passes, and the hose support portion is arranged in front of the open portion.

The instrument holder according to the present invention changes from a backward tilting holding state in which the instrument is held in a backward tilting posture in which the tip of the instrument is tilted rearward to a forward tilting posture in which the tip is tilted forward. The instrument has a holder part that rotates to be in a forward tilting standby state, the holder part is individually rotatable, and has a hose support part that supports the hose of the instrument removed from the holder part. While the instrument is held in the holder, the backward tilting state is maintained, and the instrument removed from the holder portion can be held in any posture between the backward tilting state and the forward tilting standby state. After being returned, it becomes a backward tilting holding state. That is, the instrument holder changes the posture of the instrument so that the treatment can be performed smoothly. Specifically, when the instrument is not in use, the holder part holds the instrument in a backward-tilted position that makes it difficult for the operator to come into contact with the instrument, and maintains the backward-tilted holding state. Able to handle instruments effectively. The posture of the holder portion when the instrument is returned is arbitrary between the forward tilting standby state and the backward tilting holding state. Since the hose is supported by the hose support portion, when the hose is pulled (or pushed) by moving the instrument, the holder portion rotates in conjunction with the hose. Regardless of the posture of the holder, the operator can move the instrument so that the holder can be placed in the forward tilted standby state, which is the same posture as when the instrument is pulled out. The operator can return the instrument smoothly. After the operator puts the instrument back, if the holder part is in a backward holding state, it becomes difficult for the operator to touch the instrument, so the operator can safely and hygienically handle the instrument. be able to.

In the instrument holder according to the present invention, the rotation axis of the holder part is located in the insertion hole into which the instrument is inserted in the holder part, and the hose support part is the hose of the instrument removed from the holder part. is provided at a position displaced from the rotation axis of the holder. With this configuration, the hose supported by the hose support is offset from the axis of rotation. For example, even if a detection unit for detecting whether or not an instrument is held by the holder is provided on the rotation axis or near the rotation axis, the hose is not on the rotation axis. It does not block the detector provided on the rotating shaft or the like. Therefore, erroneous detection by the detection unit can be prevented.

An instrument holder according to the present invention has a restricting portion that displaces the hose of the instrument removed from the holder portion from the rotation axis of the holder portion. The hose of the instrument is displaced from the axis of rotation by the restricting portion. For example, even if the detection unit is provided on or near the rotation shaft, the hose does not block the detection unit provided on the rotation shaft or the like because it is not on the rotation shaft. Therefore, erroneous detection by the detection unit can be prevented.

In the instrument holder according to the present invention, the rotation axis of the holder section intersects the axis of the insertion hole into which the instrument is inserted, and in the forward tilting standby state, the restricting section passes through the axis of the insertion hole. below the virtual axis. That is, the hose hits the regulating portion, is arranged at a position off the imaginary axis, and deviates from the rotation axis. For example, even if a detection unit is provided at or near the rotation axis, the hose hits the restriction and is not on the rotation axis, so the detection unit provided on the rotation axis, etc. is blocked. never Therefore, erroneous detection by the detection unit can be prevented.

An instrument holder according to the present invention has a detection section that detects the presence or absence of an instrument at or near the rotation axis of the holder section. By rotating the holder part, it becomes a backward tilting holding state or a forward tilting standby state, so the posture of the holder part differs depending on each state. does not change. That is, if the position of the detection unit is away from the rotation axis, the position of the detection unit with respect to the rotation axis is displaced each time the state of the holder changes. As in the present invention, if the position of the detection unit is near the rotation axis, the wiring of the detection unit becomes easy.

An instrument holder according to the present invention has a state holding means for maintaining a forward tilting standby state. By maintaining the forward tilting standby state, the instrument maintains the forward tilting posture, so that the practitioner can smoothly pull out the instrument. When the instrument is returned, the holder waits for the instrument in the same posture as when the instrument was pulled out, so the operator can smoothly return the instrument.

In the instrument holder according to the present invention, the hose support section is a roller and is arranged apart from the instrument held by the holder section. With this configuration, the roller does not come into contact with either the instrument or the hose when the instrument is held by the holder, but the hose comes into contact with the roller when the instrument is pulled out. At that time, the hose is detached from the insertion hole of the instrument, and thus deviates from the rotation axis of the roller. For example, even if the detection unit is provided on or near the rotation shaft, the hose does not block the detection unit provided on the rotation shaft or the like because it is not on the rotation shaft. Therefore, erroneous detection by the detection unit can be prevented. In addition, since the hose is supported by the roller and the load is distributed by the rotation of the roller, the operability of the instrument is improved and the burden on the operator when pulling the instrument is reduced. In addition, since the hose passes between the holder and the roller, the passage of the hose is regulated within the holder and does not come off the holder when the instrument is pulled out or returned. The operator can easily return the instrument.

In the instrument holder according to the present invention, the holder portion has a tubular portion forming an insertion hole into which the instrument is inserted, and an open portion in which the front portion of the tubular portion is opened and communicates with the insertion hole. The opening is formed with a width through which the hose passes, and the hose support is arranged in front of the opening. With this configuration, when the instrument is pulled out, the instrument is removed from the insertion hole, and the hose passes through the opening to reach the roller and come into contact with the roller. That is, since the hose is detached from the insertion hole of the instrument, it does not block the detector provided on the rotation shaft of the roller. Therefore, erroneous detection by the detection unit can be prevented.

FIG. 1 is an external perspective view showing a dental treatment apparatus having an instrument holder according to an embodiment of the present invention. FIG. 2 is an external perspective view of the instrument holder according to the embodiment of the present invention when the holder portion is held in a backward tilted state. FIG. 3 is an external perspective view when only the holder portion used in the instrument holder according to the embodiment of the present invention is in a forward tilted standby state. FIG. 4 is an external perspective view of the instrument holder according to the embodiment of the present invention when the holder section is in a forward tilted standby state and the instrument is pulled out. FIG. 5 is an enlarged exploded perspective view of the instrument holder according to the embodiment of the invention. FIG. 6 is an enlarged perspective view of a member that constitutes the holder portion of the instrument holder according to the embodiment of the present invention. FIG. 7 is an enlarged top view of a member that constitutes the holder portion of the instrument holder according to the embodiment of the present invention. FIG. 8 is a partial side cross-sectional view when the holder portion of the instrument holder according to the embodiment of the present invention is held in a backward tilted state. FIG. 9 is a partial side cross-sectional view when the holder portion of the instrument holder according to the embodiment of the present invention is in a forward tilted standby state. FIG. 10 is a partial side cross-sectional view when the holder portion of the instrument holder according to the embodiment of the present invention is in a forward tilting standby state, and the instrument is pulled out and the hose hits the hose support portion. . FIG. 11 is a side cross-sectional view showing a state in which the holder portion of the instrument holder according to the embodiment of the present invention is in a forward tilted standby state, the instrument is pulled out, and the hose hits the restricting portion. FIG. 12 is a schematic cross-sectional side view of the instrument holder according to the embodiment of the present invention when the holder portion is held in a backward tilted state. FIG. 13 is a schematic cross-sectional side view of the instrument holder according to the embodiment of the present invention when the holder portion is in a forward tilted standby state. FIG. 14 is an enlarged perspective view of a member that constitutes a holder portion of an instrument holder according to another embodiment of the present invention. FIG. 15 is an enlarged perspective view of a member forming a holder portion of an instrument holder according to another embodiment of the present invention.

The following is a description of an instrument holder according to embodiments of the invention. FIG. 1 shows the appearance of a dental treatment apparatus 1 having an instrument holder 12. As shown in FIG.

As shown in FIG. 1, a dental treatment apparatus 1 includes a treatment sheet 2 on which a patient (not shown) to be treated lies, a spitting receptacle 3 for expelling water contained in the mouth of the patient, It has a dental light 4 for illuminating the mouth of a person to be treated and a doctor table 5 used by the operator for treatment. The doctor table 5 is attached with an instrument holder 12 holding various instruments 6 .

The spittoon 3 and dental light 4 are supported by the cuspidor unit 8 . This cuspidor unit 8 is installed next to the medical sheet 2 . The spittoon 3 is a bowl and is installed on the cuspidor unit 8 . The dental light 4 is connected to the tip of a light movable arm 10 attached to the cuspidor unit 8 . The cuspidor unit 8 has a sub-holder 9 that holds the instrument 6 . The doctor table 5 is connected to the tip of a movable table arm 11 attached near the medical treatment sheet 2 . The light movable arm 10 and the table movable arm 11 have a plurality of joints. Therefore, the dental light 4 can be freely moved via the light movable arm 10 . Further, the doctor table 5 can be freely moved via the table movable arm 11 .

The instruments 6 held by the instrument holder 12 are, for example, a turbine, a micromotor, an air motor, a scaler, a syringe, etc. The instruments 6 held by the sub-holder 9 are, for example, a vacuum and an exhaust. saliva, syringes, and the like. An instrument hose 7 is connected to the instrument 6 , and the instrument hose 7 is connected to the doctor table 5 or the cuspider unit 8 .

Here, the instrument holder 12 will be explained based on the drawings. 2 to 4 show the course of operation of the instrument holder 12. FIG. FIG. 2 shows a rearwardly tilted holding state in which the tip of the instrument 6 is tilted rearward, in which the instrument 6 can be held, and FIG. A forward tilted standby state in which the instrument 6 can be held is shown in a forward tilted posture in which the tip of the instrument 6 is tilted forward. After the instrument 6 has been pulled out of the instrument holder 12, it is shown waiting for the instrument 6. FIG. In the following description, as shown in FIGS. 2 to 4, the direction in which the tip of the instrument 6 is inclined toward the doctor table 5 side or the side of the doctor table 5 with respect to the rotation axis A is referred to as the back (Back). On the opposite side, the direction in which the tip of the instrument 6 is inclined toward the operator (not shown) or the direction in which the operator's side of the rotation axis A is the front (Front) and the plurality of instruments 6 are arranged. are Left Side and Right Side, the direction in which gravity acts is Down, and the opposite side is Up.

As shown in FIGS. 2 to 4, the instrument holder 12 has a plurality of holder portions 15 attached to a long plate-shaped pedestal portion 13 . The holder part 15 can alternately change between a backward tilting holding state and a forward tilting standby state by rotating, and changes the instrument 6 to a backward tilting posture or a forward tilting posture. The holder parts 15 are arranged in the left-right direction on the same rotation axis A and can rotate independently. Although the number of holder portions 15 is arbitrary, this embodiment has five holder portions 15 .

As shown in FIG. 2, the holder portion 15 in the backward tilting state holds the instrument 6 in the backward tilting posture and maintains the backward tilting state. Therefore, the tip of the instrument 6 is directed toward the side where the doctor table 5 is located, away from the side where the operator is located. In this state, when the operator pulls the instrument 6 forward and an external force acts on the instrument 6, the instrument 6 falls forward and the holder part 15 rotates forward, as shown in FIG. , the holder portion 15 is in a forward tilting standby state. The holder part 15 in the forward tilted standby state holds the instrument 6 in a forward tilted posture. Therefore, the tip of the instrument 6 is directed away from the side of the doctor table 5 and toward the side of the operator. In this state, the practitioner grasps the instrument 6 and pulls it out from the holder section 15, as shown in FIG. The instrument 6 pulled out and removed from the holder portion 15 is returned to the holder portion 15 in any posture from the forward tilting standby state to the backward tilting holding state, and then automatically by a moment or by the operator. Manually by , it will be in a backward tilting state. Here, "from the forward tilting standby state to the backward tilting holding state" includes the forward tilting standby state, the posture between the forward tilting standby state and the backward tilting holding state, and the backward tilting holding state.

Further, the instrument holder 12 will be explained in detail with reference to the drawings. FIG. 5 shows the instrument holder 12 disassembled.

As shown in FIG. 5, the instrument holder 12 consists of a base portion 13, a holder portion 15 fixed to the front surface of the base portion 13, and a restricting portion 60 fixed to the lower portion of the base portion 13. It is configured. The pedestal portion 13 is formed with a wire passage hole 14 through which wiring is passed for each holder portion 15 . In addition, the pedestal portion 13 is appropriately formed with a screw hole through which a screw or the like for fixing the holder portion 15 is passed. The holder part 15 includes a pair of support parts 16 fixed to the pedestal part 13, a rotating body part 23 supported by the supporting body parts 16 and rotatable with respect to the supporting body part 16, and a rotating body part 23. a holder body 31 attached to the portion 23; a detection portion 39 built in the support portion 16 for detecting the presence or absence of the instrument 6; an angle positioning means for determining the rotation angle of the rotation body 23; It has a state holding means for forcibly maintaining a standby state or a backward tilt holding state, and a roller 45 as a hose support portion for supporting the instrument hose 7 of the instrument 6 removed from the holder portion 15. there is The detection unit 39 is, for example, an infrared sensor or the like. The restricting portion 60 has a laterally elongated restricting main body portion 61 and an L-shaped base portion 62 connected to both left and right ends of the restricting main body portion 61 . The regulation main body 61 may have a columnar rod shape and may have a structure that rotates like a roller. With the base portion 62 attached to the lower portion of the pedestal portion 13, the regulation main body portion 61 is disposed downwardly away from the pedestal portion 13 (see FIG. 4).

The pair of support portions 16 are disk-shaped, and each support portion 16 is further composed of a pair of members. The support portion 16 includes a disk-shaped fixed-side support portion 17 and a lid-side support portion 18 which has the same shape as the fixed-side support portion 17 and is attached to the fixed-side support portion 17 . consists of Inside the fixed-side support body part 17, a detection part accommodation part 19 to which a detection part 39 is attached is formed substantially in the center. A connection portion 20 to be attached to the base portion 13 is formed on the outer peripheral surface of the fixed-side support portion 17 . The connecting portion 20 protrudes rearward from the outer peripheral surface. The connection portion 20 and the fixed-side support portion 17 are communicated on the inside, and the electric wires and signal wires of the detection portion 39 are passed through the connection portion 20 . The lid-side support portion 18 is attached to the side surface of the fixed-side support portion 17 from the side facing the rotary body portion 23 in the fixed-side support portion 17 . At the center of the lid-side support portion 18, a shaft protrusion 21 is formed which serves as a rotation axis A when rotating the rotating main body portion 23. As shown in FIG. The shaft protrusion 21 protrudes toward the rotating main body 23 . A support window portion 22 is formed in the shaft protrusion 21 at the center of the lid-side support portion 18 . The support window 22 is a hole axially penetrating the shaft protrusion 21 . A positioning projection 47 as an angle positioning means and a state holding piece 63 as a state holding means are formed on the side of the lid-side support portion 18 facing the rotary body portion 23 . The positioning protrusion 47 protrudes toward the rotary main body 23 and is arranged around the shaft protrusion 21 behind the rotation axis A. As shown in FIG. The state holding piece 63 is a leaf spring formed by cutting out a part of the board surface of the lid-side support portion 18 , and is arranged forward of the rotation axis A. As shown in FIG.

Here, the rotating main body portion 23 and the holder main body portion 31 will be described with reference to the drawings. FIG. 6 shows the rotating main body portion 23 enlarged and the lid-side support body portion 18 enlarged. FIG. 7 shows the enlarged holder main body 31 and the enlarged rollers 45 .

As shown in FIG. 6, the rotation main body 23 has a cylindrical shape suitable for rotation about the left-right axis, and the holder main body 31 is attached to the cylinder in a direction orthogonal to the rotation axis A. A mounting hole 24 is formed, and the front of the mounting hole 24 is open. That is, the rotating body portion 23 has a pair of supported portions 25 supported by the support portion 16 and a rear surface portion 26 connecting the rear portions of the supported portions 25 to each other. The front portions of the supported portions 25 are separated from each other and are not connected. The supported portion 25 has circular left and right outer surfaces, and is formed with a shaft concave portion 51, a positioning groove portion 48 as an angle positioning means, and a state holding groove portion 64 as a state holding means. The shaft recess 51 is a circular groove formed in the center of the outer surface of the supported portion 25 . The positioning groove portion 48 is located behind the shaft recess portion 51 and is composed of a first positioning portion 49 and a second positioning portion 50 . Each of the positioning portions 49 and 50 has a flat plate shape and radially extends rearward from the shaft recess portion 51 . A space is formed between each of the positioning portions 49 and 50 . The state holding groove portion 64 is located forward of the shaft recess portion 51 and is composed of a first locking portion 65 and a second locking portion 66 . Each locking portion 65 , 66 is flat plate-shaped and radially extends forward from the shaft recessed portion 51 . A space is formed between each locking portion 65 , 66 . The rear surface portion 26 is curved around the shaft recessed portion 51 . The mounting hole 24 is orthogonal to the shaft recess 51 , and the center of the mounting hole 24 is substantially orthogonal to the shaft recess 51 . A rotating body window 29 is formed on the shaft recess 51 at the center of the supported portion 25 inside the rotating body 23 (mounting hole 24 ). The rotating body window portion 29 is a hole penetrating the rotating body portion 23 in the direction of the shaft recess 51 . Translucent members 30 made of, for example, glass or plastic are attached to the rotating body window portion 29 from the left and right outer sides (see FIG. 5).

As shown in FIGS. 5 and 7, the holder main body 31 includes a tubular portion 32 having an insertion hole 33 into which the instrument 6 is inserted, and a tubular portion 32 connected to the upper end of the tubular portion 32 and connected to the tubular portion 32 . It has a cover portion 34 extending to the front of the shaped portion 32 and an open portion 35 in which the front portion of the cylindrical portion 32 is opened and communicates with the insertion hole 33 . The cylindrical portion 32 has a shape that follows the attachment hole 24 of the rotary body portion 23 , and is formed in a C shape when viewed from the axial direction of the insertion hole 33 by opening the front. An imaginary axis V passing through the insertion hole 33 is substantially orthogonal to the rotation axis A. As shown in FIG. Since the imaginary axis V is within the range of the insertion hole 33, the center of the imaginary axis V and the rotation axis A are perpendicular to each other. In some cases. A holder window portion 36 is formed on the inner surface of the cylindrical portion 32 and on the rotation axis A. As shown in FIG. The holder window portion 36 is a hole penetrating the holder main body portion 31 in the rotation axis A direction. That is, the rotation axis A is inside the insertion hole 33 . A locking piece 37 that locks onto the rotary body 23 is formed at the lower end of the tubular portion 32 . The cover portion 34 is a flange extending from the upper end of the cylindrical portion 32 to the left and right sides, rearward and forward, and has a substantially rectangular shape when viewed from above. The front portion of the cover portion 34 extends from the left and right portions to the lower end of the cylindrical portion 32 , is recessed toward the insertion hole 33 , and is connected to the open portion 35 . A roller receiving portion 67 is formed at the upper and front end of the cover portion 34 . A roller 45 is attached to the roller receiving portion 67 via a shaft 68 . The roller 45 is spaced in front of the opening 35 (of the insertion hole 33). The roller 45 is rod-shaped and rotates on an axis parallel to the rotation axis A of the rotation main body 23 . The width of the open portion 35 is large enough for the instrument hose 7 to pass through, but large enough to prevent the instrument 6 from passing therethrough.

Each member formed as described above is assembled as follows.

In FIG. 5 , the detection unit 39 is attached to the detection unit accommodating portion 19 of the fixed-side support member 17 in the support member 16 , and the wiring of the detection unit 39 is passed through the connection portion 20 of the fixed-side support member 17 . be. The lid-side support portion 18 of the support portion 16 is attached to the fixed-side support portion 17 . Translucent members 30 are attached to the rotating body window portions 29 of the rotating body portion 23 from the left and right outer sides. The supporting body part 16 is attached to both the supported parts 25 of the rotating main body part 23 from the left and right outer sides, and the shaft projections 21 of the supporting body part 16 are inserted into the shaft concave parts 51 of the both supported parts 25 . At that time, the positioning protrusion 47 of the support portion 16 is arranged between the positioning portions 49 and 50 of the rotation body portion 23, and the state holding pieces 63 of the support portion 16 are engaged with the locking portions of the rotation body portion 23. It is arranged between portions 65 and 66 . The rotating body portion 23 is supported by being sandwiched between the two support portions 16, and is freely rotatable. The support body part 16 and the rotating body part 23 are arranged on the rotation axis A. As shown in FIG. The assembled holder portion 15 is fixed to the base portion 13 . At that time, the wiring of the detection unit 39 passed through the connection unit 20 is passed through the wire connection hole 14 of the base unit 13 . When a plurality of holder portions 15 are fixed to the pedestal portion 13 , adjacent rotating body portions 23 are supported by a common support body portion 16 . A decorative lid 38 is attached to the endmost support portion 16 of the adjacent holder portions 15 (see FIG. 2).

Next, the holder body portion 31 is attached to the rotating body portion 23 . At that time, the cylindrical portion 32 of the holder main body 31 is inserted into the mounting hole 24 of the rotary main body 23, and the locking piece 37 of the holder main body 31 is locked to the lower edge of the mounting hole 24 ( See Figure 8). The rotating body portion 23 and the support body portion 16 are covered with the cover portion 34 of the holder body portion 31 from the upper surface to the front surface. The support window portion 22 of the support portion 16, the rotation body window portion 29 of the rotation body portion 23, and the holder window portion 36 of the holder body portion 31 are aligned on the rotation axis A, and the infrared light source and light receiving element of the detection portion 39 are aligned. are also arranged on the rotation axis A. After the instrument 6 is inserted into the insertion hole 33 of the holder body portion 31 , the roller 45 is attached to the roller receiving portion 67 via the shaft 68 . The instrument 6 is surrounded by the holder main body portion 31 and the roller 45 and passed through the holder portion 15 .

The operation of the instrument holder 12 assembled as described above will be described with reference to the drawings. 8 to 11 show the course of operation of the instrument holder 12. FIG. FIG. 8 shows a cross section in a backward tilting holding state, FIG. 9 shows a cross section in a forward tilting standby state, and FIG. FIG. 11 is a cross section after the instrument 6 has been pulled out to the limit of the length of the instrument hose 7, showing the operation of the restricting portion 60. FIG.

As shown in FIG. 8, the center of the insertion hole 33 of the holder body 31 is substantially orthogonal to the rotation axis A, so the instrument 6 is inserted into the insertion hole 33 and held by the holder 15. Assuming that the weight of the holder portion 15 is negligible in this state, the center of gravity of the holder portion 15 including the instrument 6 (hereinafter referred to as “instrument-equipped holder portion”) is the instrument 6 It is in. Further, the instrument 6 is held by the holder section 15 so that the center of gravity of the holder section with the instrument is above the rotation axis A. As shown in FIG. Therefore, when an external force acts on the instrument 6 toward the rear from the rotation axis A, or the tip of the instrument 6 is located behind the rotation axis A, the center of gravity is behind the rotation axis A. Thus, the moment acting on the instrument holder portion is in the direction in which the rotating body portion 23 rotates rearward (for example, clockwise in FIG. 8). Therefore, the holder portion 15 is held in a backward tilted state. The backward tilting holding state is maintained by the action of gravity or the action of the state holding means. The roller 45 is arranged away from the instrument 6 and the instrument hose 7 in the backward tilting state.

On the other hand, when an external force acts on the instrument 6 forward from the rotation axis A, or when the tip of the instrument 6 is located forward of the rotation axis A, the center of gravity The moment that acts on the instrument holder portion, which is the front, is in the direction in which the rotating body portion 23 rotates forward (for example, counterclockwise in FIG. 8). Therefore, as shown in FIG. 9, the holder portion 15 is in a forward tilting standby state. The forward leaning standby state is maintained by the action of gravity. In the forward tilting standby state, when the instrument 6 is pulled out, the posture of the holder portion 15 changes between the forward tilting standby state and the backward tilting holding state according to the external force. In the forward tilting standby state, the regulation body portion 61 of the regulation portion 60 is below the imaginary axis V, and the instrument hose 7 is in contact with the regulation body portion 61 . Depending on the rotation angle of the holder portion 15, the thickness of the instrument hose 7, the degree of slackness, etc., the instrument hose 7 may not be in contact with the regulation main body portion 61 in the forward tilting standby state.

As shown in FIG. 10 , when the instrument 6 is pulled out and removed from the holder portion 15 , the instrument hose 7 is pulled by the instrument 6 and is released from the insertion hole 33 of the holder main body portion 31 . Exit. The instrument hose 7 deviates from the rotation axis A, passes through the opening 35, and is supported by a roller 45 at a position offset from the rotation axis A. Therefore, the instrument hose 7 does not block the infrared rays between the infrared light source and the light receiving element of the detection section 39 aligned on the rotation axis A. As shown in FIG. The load of the instrument hose 7 is distributed by the rotating rollers 45, and the instrument hose 7 is pulled out smoothly.

As shown in FIG. 11 , when the instrument 6 is further pulled to the limit of the length of the instrument hose 7 , the instrument hose 7 is pushed against the roller 45 and the lower portion of the restriction portion 60 is pulled. is in contact with the regulation main body 61 and is in a stretched state. That is, the instrument hose 7 is supported against the restricting portion 60 at a position displaced from the rotation axis A. As shown in FIG. Therefore, the instrument hose 7 does not block the infrared rays between the infrared light source and the light receiving element of the detection section 39 aligned on the rotation axis A. As shown in FIG.

The rotation angle of the holder portion 15 is determined by the angle positioning means, and the forward tilting standby state and the backward tilting holding state are maintained by the state holding means. 12 and 13 schematically show angular positioning means and state holding means of the instrument holder 12. FIG. 12 shows the inside of the instrument holder 12 in which the backward tilting state is maintained by the angle positioning means and the state maintaining means, and FIG. 13 shows the forward tilting standby state maintained by the angle positioning means and the state maintaining means. The interior of the instrument holder 12 is shown.

In FIG. 12, the moment acting on the instrument holder portion is in the direction in which the rotating body portion 23 rotates backward (for example, clockwise in FIG. 12). The portion 66 is over the state holding piece 63 of the lid-side support portion 18 , and the second positioning portion 50 of the rotating body portion 23 is in contact with the positioning protrusion 47 of the support portion 16 . Therefore, the rotating main body 23 is stopped, and the backward tilting holding state is maintained. On the other hand, in FIG. 13, the moment acting on the instrument holder portion is in the direction in which the rotating body portion 23 rotates forward (for example, counterclockwise in FIG. 13). The first locking portion 65 is over the state holding piece 63 of the lid-side support portion 18 , and the first positioning portion 49 of the rotating main body portion 23 is in contact with the positioning protrusion 47 . Therefore, the rotating body portion 23 is stopped, and the forward tilting standby state is maintained.

This embodiment is configured as described above.

Next, the effects of this embodiment will be described.

As described above, in this embodiment, a plurality of holder portions 15 are arranged in the left-right direction on the same rotation axis A, and adjacent rotating body portions 23 are supported by a common support portion 16. The rotating body 23 can rotate independently (see FIGS. 2 and 3). That is, each holder portion 15 rotates and enters a forward tilting standby state or a backward tilting holding state, so that only the instruments 6 to be used are tilted forward, and the other instruments 6 not in use are tilted backward. Maintain leaning posture. When the operator takes out or puts back the instrument 6, the other instrument 6 that is not in use is in a backward tilting posture (see FIG. The tip of the hose does not injure the user, and the pulled-out instrument hose 7 does not interfere with other instruments 6. - 特許庁Therefore, a plurality of instruments 6 can be handled smoothly, safely and hygienically, depending on whether or not each instrument 6 is used.

In this embodiment, the holder portion 15 of the instrument holder 12 includes a pair of support portions 16 fixed to the pedestal portion 13, and a pair of support portions 16 supported by the support portions 16 and rotatable relative to the support portions 16. and a holder body portion 31 attached to the rotating body portion 23 . That is, by rotating the rotary main body 23, the holder 15 alternately changes between the backward tilting holding state (see FIG. 8) and the forward tilting standby state (see FIG. 9). The holder part 15 holds the instrument 6 in a backward tilting posture in which it is difficult to come into contact with the operator in the backward tilting holding state. Therefore, the operator can handle the instrument 6 safely and hygienically. On the other hand, since the holder part 15 holds the instrument 6 in the forward tilting posture in the forward tilting standby state, the practitioner can smoothly pull out the instrument 6 .

In this embodiment, the posture of the holder portion 15 when the instrument is returned is arbitrary between the forward tilting standby state and the backward tilting holding state. Since the instrument hose 7 is surrounded by the holder body 31 and the roller 45 and is passed through the holder 15, when the instrument is moved, the instrument hose 7 is pulled. (or when pressed), the holder part 15 is interlocked with the instrument hose 7 and rotates. Regardless of the posture of the holder part 15, the practitioner moves the instrument 6 so that the holder part 15 is placed in a forward tilting standby state, which is the same posture as when the instrument 6 is pulled out. Therefore, the operator can return the instrument 6 smoothly.

In the present embodiment, a plate spring-shaped state holding piece 63 is formed as a state holding means by cutting out a part of the board surface of the lid-side support body portion 18 , and the supported portion 25 of the rotating body portion 23 is formed. A state holding groove portion 64 is formed in (see FIG. 6). In the forward tilting standby state, the state holding piece 63 is locked by the first locking portion 65 of the state holding groove portion 64, and the positioning protrusion 47 is brought into contact with the first positioning portion 49 of the positioning groove portion 48, thereby rotating. The body portion 23 is fastened (see FIG. 13). With this configuration, the forward leaning standby state is maintained, so that the operator can easily return the instrument 6 to the holder portion 15 and smoothly handle the instrument 6 . Furthermore, even after returning the instrument 6, the operator can keep the instrument 6 in the forward leaning standby state according to the application.

Furthermore, in the present embodiment, in the backward tilting holding state, the state holding piece 63 is locked by the second locking portion 66 of the state holding groove portion 64, and the positioning protrusion 47 is engaged with the second positioning groove portion 48 of the positioning groove portion 48. By contacting the portion 50, the rotating body portion 23 is fastened (see FIG. 12). With this configuration, the backward tilting holding state is maintained. With this configuration, for example, the instrument 6 can be left in the backward tilted posture during treatment. Further, when the instrument 6 is removed from the instrument hose 7 for sterilization or the like and only the instrument hose 7 is held by the holder portion 15, the center of gravity may be behind the rotation axis A. When the doctor table 5 moves or the like, the rotating main body 23 rotates backward, but even in such a case, the backward tilting holding state can be maintained by the state holding means.

In the present embodiment, the support portion 16 of the holder portion 15 is composed of a fixed side support portion 17 and a lid side support portion 18, and a detection portion formed substantially in the center of the inner side of the fixed side support portion 17. A detection unit 39 for detecting the presence or absence of the instrument 6 is attached to the storage unit 19 (see FIG. 5). The detection unit 39 is, for example, an infrared sensor or the like. The support window portion 22 of the support portion 16, the rotation body window portion 29 of the rotation body portion 23, and the holder window portion 36 of the holder body portion 31 are aligned on the rotation axis A, and the infrared light source and light receiving element of the detection portion 39 are aligned. are also arranged on the rotation axis A. Therefore, wiring of the detection unit 39 is easy. That is, the holder portion 15 is in a backward tilting holding state or a forward tilting standby state by rotating the rotating main body portion 23, so the posture of the holder portion 15 differs depending on each state. It does not change regardless of the state of the holder part 15 . If the position of the detection part 39 inside the support part 16 is separated from the rotation axis A, the position of the detection part 39 with respect to the rotation axis A changes every time the state of the holder part 15 changes, so the wiring is required. becomes complicated. Therefore, by arranging the detection unit 39 on the rotation axis A as in the present embodiment, wiring becomes easier.

In this embodiment, the holder main body 31 has an open portion 35 that is open at the front of the cylindrical portion 32 and communicates with the insertion hole 33, and is arranged in front of the open portion 35 (of the insertion hole 33). A roller 45 for supporting the instrument hose 7 of the instrument 6 removed from the holder part 15 is attached to the roller receiving part 67 (see FIG. 10). The width of the open portion 35 is large enough for the instrument hose 7 to pass through, but large enough to prevent the instrument 6 from passing therethrough. The roller 45 is arranged away from the instrument hose 7 in the rearward tilting state (see FIG. 8). With this configuration, the roller 45 does not contact the instrument 6 or the instrument hose 7 when the instrument 6 is held by the holder section 15 , but when the instrument 6 is pulled out, the roller 45 is removed from the holder section 15 . When removed, the instrument hose 7 is pulled by the instrument 6 and pulled out of the insertion hole 33 of the holder body 31 . The instrument hose 7 deviates from the rotation axis A, passes through the opening 35, and is supported by a roller 45 at a position offset from the rotation axis A (see FIG. 10). Since the instrument hose 7 is not on the rotation axis A, it does not block the infrared rays of the detector 39 provided on the rotation axis A. Therefore, erroneous detection by the detection unit 39 can be prevented.

In this embodiment, the instrument hose 7 is supported by the rollers 45, and the load is dispersed by the rotation of the rollers 45. Therefore, the operability of the instrument 6 is improved, and the instrument 6 can be pulled easily. The burden on the operator is reduced. In addition, since the instrument hose 7 passes between the holder body 31 and the roller 45, the path of the instrument hose 7 remains in the holder body 31 both when the instrument 6 is pulled out and when it is returned. Since the instrument hose 7 is regulated within the insertion hole 33 of the holder body 31 and does not come off from the holder main body 31, the operator can easily put the instrument 6 back. In the present embodiment, the rotating main body 23 rotates independently, and the other instruments 6 that are not in use are tilted backward. The mend hose 7 does not interfere with other instruments 6. If another instrument 6 is of a specification that remains in a forward-leaning posture and the instrument hose 7 is regulated by the roller 45, the path of the instrument hose 7 is in a forward-leaning posture. Since it is limited to the vicinity of other instruments 6 , the instrument hose 7 may get caught on other instruments 6 .

This embodiment has a regulating portion 60 fixed to the lower portion of the pedestal portion 13, and the regulating portion 60 has a columnar rod-shaped regulating body portion 61 (see FIG. 2). An imaginary axis V passing through the insertion hole 33 of the holder main body 31 is substantially orthogonal to the rotation axis A, and in the forward tilting standby state, the regulation main body 61 of the regulation part 60 is below the imaginary axis V ( See Figure 9). With this configuration, when the instrument 6 is further pulled to the limit of the length of the instrument hose 7 , the instrument hose 7 remains in contact with the roller 45 , and the restriction main body portion which is the lower portion of the restriction portion 60 is pulled. When it hits 61, it is in a stretched state (see FIG. 11). That is, the instrument hose 7 is supported by contacting the regulation body portion 61 at a position displaced from the rotation axis A. As shown in FIG. Since the instrument hose 7 is not on the rotation axis A, it does not block the infrared rays of the detector 39 provided on the rotation axis A. Therefore, erroneous detection by the detection unit 39 can be prevented.

In another embodiment of the present invention, the restricting portion is integrated with the base portion.
Other embodiments do not have restrictions.
Other embodiments have anteversion angle adjustment means. The forward tilting angle adjusting means is realized by, for example, an inverted L-shaped adjusting piece member attached to the pedestal portion and a locked portion protruding rearward from the rear surface portion of the rotating main body portion.
In other embodiments, the detector and each window are arranged not on the axis of rotation, but near or far from the axis of rotation, as long as they are on the same line. In this case, since the position of the detection section differs according to each state of the holder section, it is necessary to devise wiring of the detection section.
In another embodiment, the detector is a reflective infrared sensor. In this case, the detector is built in, for example, the rotating body or the support.
In another embodiment, the sensing unit is a magnet sensor. In this case, each window is not formed, the sensor is built in the rotating main body, and the magnetic body is built in the instrument. A sensor is built in the support portion, and this sensor detects the magnetic force of the instrument.
In another embodiment, the sensing portion is a contact switch. In this case, the contact switch is arranged in the insertion hole of the holder main body.
In another embodiment, the detector is imaging means such as a video camera.
In another embodiment the sensing part is mounted on a suitable member extending from the doctor table to the holder part. That is, the detection section is not directly provided on the holder section.
In another embodiment, the holder part does not have a sensing part.
In another embodiment, a weight serving as the center of gravity of the holder portion is accommodated in the rotating body portion of the holder portion, and the weight is located forward of the rotation axis A as the state holding means.
In another embodiment, the state holding means is designed so that the center of gravity of the rotating main body itself is at a predetermined position, instead of the configuration in which the weight is housed in the weight housing portion.
In other embodiments, the state-holding means exert a moment by, for example, air, pneumatic or hydraulic piston cylinders, springs, magnets, electromagnets, or the like. In the case where the state holding means is a magnet, for example, as shown in FIG. , a first locking magnet 165 and a second locking magnet 166 are built in front of the shaft recess 151 . Further, for example, as shown in FIG. 15 , the lid-side support body portion 218 has a positioning projection 247 with a built-in third locking magnet 269 , and the rotating main body portion 223 has a first positioning portion 249 . A fourth locking magnet 270 and a fifth locking magnet 271 are built in on the side of the second positioning portion 250 .
In another embodiment, the holding means is a suitable resistance applied between the support portion and the rotating body portion such that the rotating body portion stops due to frictional forces. In this case, the rotating main body stops at an arbitrary position released from the external force applied by the operator or the like.
In another embodiment, the state holding means forcibly maintains only one of the forward leaning standby state and the backward leaning holding state. Other embodiments have no state holding means.
In another embodiment, the rotating body and the holder body are integrated, and the rotating body has a structure similar to that of the holder body.
In another embodiment, the pedestal portion or the support portion is provided with a state detection portion for detecting each state of the holder portion. The state detection unit detects the position of the rotating main body to determine whether the holder is in a backward tilting holding state or a forward tilting standby state. etc. In this case, for example, it is possible to perform control such as outputting a signal only when both the detection of the instrument by the detection unit and the detection of the backward tilting state by the state detection unit are ON.
In other embodiments, the instrument hose may deviate from the axis of rotation at any degree as long as it does not interfere with the detector on the axis of rotation. For example, in the insertion hole of the holder main body, a space corresponding to about one instrument hose is provided.
In another embodiment, the hose support is achieved by narrowing the width of the opening in the holder body. In this case it does not have rollers.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. Various design changes can be made to the present invention without departing from the scope of the claims.

1 dental treatment apparatus 2 treatment sheet 3 spittoon 4 dental light 5 doctor table 6 instrument 7 instrument hose (hose)
8 cuspidor unit 9 sub holder 10 movable arm for light 11 movable arm for table 12 instrument holder 13 base portion 14 wire hole 15 holder portion 16, 116, 216 support portion 17 fixed side support portion 18, 118, 218 lid-side support portion 19 detection portion accommodating portion 20 connection portion 21, 121, 221 shaft projection portion 22, 122, 222 support window portion 23, 123, 223 rotating body portion 24, 124, 224 mounting hole 25, 125 , 225 Supported portion 26, 126, 226 Rear surface portion 29, 129, 229 Rotating main body window portion 30 Translucent member 31 Holder main body portion 32 Cylindrical portion 33 Insertion hole 34 Cover portion 35 Open portion 36 Holder window portion 37 Locking Piece 38 Decorative lid 39 Detector 45 Roller (hose support)
47, 147, 247 positioning protrusion (angular positioning means)
48, 148, 248 positioning groove (angle positioning means)
49, 149, 249 First Positioning Part 50, 150, 250 Second Positioning Part 51, 151, 251 Shaft Recess 60 Regulating Part 61 Regulating Main Body 62 Base 63 State Holding Piece (State Holding Means)
64 state holding groove (state holding means)
65 first engaging portion 66 second engaging portion 67 roller receiving portion 68 shaft 163 state holding magnet (state holding means)
165 first locking magnet (status holding means)
166 second locking magnet (status holding means)
269 Third locking magnet (status holding means)
270 fourth locking magnet (state holding means)
271 Fifth locking magnet (state holding means)
A Rotational axis V Virtual axis

Claims (8)

From a backward tilting holding state in which the instrument is held in a backward tilting posture in which the tip of the instrument is tilted rearward, to a forward tilting standby state in which the tip is rotated in a forward tilting posture in which the tip is tilted forward. having a holder part,
the holder portion has a hose support portion that is individually rotatable and supports the hose of the instrument removed from the holder portion;
In a state in which the instrument is held by the holder portion, the backward tilting holding state is maintained, and the instrument removed from the holder portion is moved from the backward tilting holding state to the forward tilting standby state. After being returned to the holder part in an arbitrary posture between, the backward tilting holding state is established,
An instrument holder characterized by: a rotation axis of the holder part is located in an insertion hole of the holder part into which the instrument is inserted;
The hose support portion is provided at a position that supports the hose of the instrument removed from the holder portion at a position deviated from the rotation axis of the holder portion,
The instrument holder according to claim 1, characterized in that: a restricting portion that displaces the hose of the instrument removed from the holder portion from the rotation axis of the holder portion;
The instrument holder according to claim 1 or 2, characterized in that: the axis of rotation of the holder section intersects the axis of the insertion hole into which the instrument is inserted;
In the forward tilting standby state, the restricting portion is below an imaginary axis passing through the axis of the insertion hole.
The instrument holder according to claim 3, characterized in that: A detection unit that detects the presence or absence of the instrument at or near the rotating shaft of the holder unit,
The instrument holder according to any one of claims 1 to 4, characterized in that: Having a state holding means for maintaining the forward leaning standby state,
The instrument holder according to any one of claims 1 to 5, characterized in that: wherein the hose support is a roller and is spaced apart from the instrument held by the holder;
The instrument holder according to any one of claims 1 to 6, characterized in that: a tubular portion in which the holder portion forms an insertion hole into which the instrument is inserted;
an open portion in which a front portion of the cylindrical portion is open and communicates with the insertion hole;
The opening is formed to have a width through which the hose passes,
wherein the hose support is arranged in front of the opening;
The instrument holder according to any one of claims 1 to 7, characterized in that:

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