JP6278661B2 - Adjuster - Google Patents

Description

  The present invention relates to an adjuster that is disposed between a bottom portion of a device main body and an installation surface on which the device main body is installed to adjust the posture of the device main body.

  As this type of adjuster, an installation adjuster foot disclosed in Patent Document 1 below is known. This installation adjuster foot is an adjuster used to adjust the posture (height and inclination) of the cabinet. The nut is provided on the lower side, and the male screw part is provided with a protrusion on the lower end. It is configured with washers and feet. When adjusting the posture of the cabinet using the installation adjuster foot, the upper sides of the four male screw portions are screwed into the female screw portions of the four bosses arranged at the bottom of the cabinet. Next, four feet are placed on the floor, and a nylon washer is placed thereon. Subsequently, the nut provided in the male screw part is rotated with a spanner or the like to adjust the protruding length of the male screw part from the bottom surface of the cabinet. This adjustment is sequentially performed for the four male screw portions. Thereby, the attitude | position of a cabinet is adjusted.

  On the other hand, in this type of adjuster, for example, when the cabinet vibrates, the male screw portion rotates due to the vibration, so that there is a difference in the protruding length of each male screw portion, which may cause the cabinet to tilt. There is. For this reason, when this type of adjuster is used in a measuring device that may cause an error due to a slight tilt, it is necessary to regulate the rotation of the male screw portion. In this case, as a configuration for restricting the rotation of the male screw portion, a configuration using a lock nut and a configuration using a set screw are known. In the configuration using the lock nut, the lock nut threadedly engaged with the tip of the male thread protruding to the inside of the bottom of the cabinet is rotated and pressed from the inside of the bottom toward the inner surface of the bottom, or in the male thread The lock nut screwed into the outer portion of the bottom portion of the cabinet is rotated and pressed from the outside of the bottom portion toward the outer surface of the bottom portion, thereby restricting the rotation of the male screw portion. In this case, in order to prevent danger, a cover may be provided to cover the male thread portion protruding inside the bottom of the cabinet. In such a configuration in which such a cover is provided, the cover is provided every time adjustment work is performed to adjust the cabinet posture. Since it is necessary to attach and detach, work becomes complicated. For this reason, in the structure using a lock nut, the structure which presses a bottom part from the outer side of a bottom part is employ | adopted. In the configuration using a set screw, a screw hole is formed in a boss into which the male screw part is screwed, a set screw is screwed from the screw hole, and the outer periphery of the male screw part is pressed by the tip of the set screw. A configuration that restricts the rotation of the male screw portion is employed.

JP-A-9-283944 (page 2-3, FIG. 1)

  However, the conventional adjusters have the following problems to be improved. That is, in the conventional adjuster, the rotation of the male screw portion is restricted using a lock nut or a set screw. However, in the configuration in which the lock nut is rotated to press the bottom from the outside of the bottom of the cabinet, when the lock nut is screwed, the distance from the distal end portion to the bottom portion of the male screw portion may change. Specifically, in the state before the bottom is pressed by the lock nut, the bottom is lowered downward by the weight of the cabinet. Therefore, the upper surface of the thread of the male screw portion and the female screw at the screwed portion of the male screw portion and the female screw portion. The lower surface of the thread portion of the screw portion comes into contact with each other, and a slight gap is generated between the lower surface of the thread portion of the male screw portion and the upper surface of the thread portion of the female screw portion. In this state, when the bottom portion is pressed by the lock nut, the bottom portion is relatively relative to the male screw portion by the gap described above between the lower surface of the thread of the male screw portion and the upper surface of the screw thread of the female screw portion. As a result of being pushed upward, the distance from the front end portion of the male screw portion to the bottom portion changes. In addition, in the configuration using the set screw, the outer periphery of the male screw part is pressed by the tip of the set screw, so that the thread of the male screw part is damaged and the male screw part is smoothly rotated during the next adjustment. Can be difficult. As described above, the conventional adjuster may have inconvenience due to the means for restricting the rotation of the male screw portion, and improvement of this point is desired.

  The present invention has been made in view of such a problem to be improved, and a main object of the present invention is to provide an adjuster capable of preventing the occurrence of inconvenience due to the means for restricting the rotation of the male screw portion.

  In order to achieve the above object, an adjuster according to claim 1 is an adjuster disposed between a bottom portion of a device main body and an installation surface on which the device main body is installed to adjust the posture of the device main body. The base portion placed on the installation surface and the internal thread portion formed on one of the bottom portion and the base portion are configured to be screwed and disposed between the bottom portion and the base portion. And a male screw part that changes the distance between the bottom part and the base part by increasing or decreasing the screwing amount with respect to the female screw part accompanying a rotation operation, and a rotation restricting part that restricts the rotation of the male screw part, The rotation restricting portion includes a restricting portion main body having a screw hole into which the male screw portion can be screwed, and one of the rotation restricting portions disposed in the restricting portion main body according to a tightening operation on one of the two. And a pressing screw which way and the said regulating portion body performs application of pressure to the orientation adjacent.

  The adjuster according to claim 2 is the adjuster according to claim 1, wherein the base portion is configured to be able to support a base end portion of the male screw portion, and the male screw portion is the bottom portion as the one of the two. The rotation restricting portion is inserted into an insertion hole formed in the restricting portion main body so that the shaft portion of the pressurizing screw can be inserted through the female screw portion. Further, the pressure is applied according to the tightening operation in which the tip of the shaft is screwed into the female screw for the pressure screw formed on the bottom.

  According to a third aspect of the present invention, in the adjuster according to the second aspect, a spherical protrusion is formed at the base end portion of the male screw portion, and the base portion rotatably supports the protrusion. The recessed part to be formed is formed, and the male screw part can be supported in a state inclined with respect to the installation surface.

According to a fourth aspect of the present invention, there is provided the adjuster according to the first aspect, wherein the male threaded portion can be screwed into the female threaded portion formed in the base portion as the one of the base threaded portions. In addition, it is possible to engage a tip portion with an engagement hole formed in the bottom portion of the device main body, and the rotation restricting portion can be inserted through the shaft portion of the pressure screw. is configured to perform the pressure in accordance with the screwed with the female screw portion for the pressure screw is formed in the base portion of the tip portion of the insertion has been said shaft portion formed insertion hole tightening operation ing.

  The adjuster according to claim 1, wherein the restricting portion main body in which a screw hole capable of screwing the male screw portion is formed, and either one of the regulating portion main body and the restricting portion main body according to a tightening operation with respect to either the bottom portion or the base portion of the apparatus main body. The rotation restricting portion is configured to include a pressurizing screw that pressurizes in the direction in which they are close to each other. For this reason, according to this adjuster, unlike the configuration using a set screw, it is possible to avoid damage to the screw thread in the male screw part, and therefore it is difficult to smoothly rotate the male screw part due to damage to the screw thread. Such inconvenience can be reliably prevented. Further, according to this adjuster, when adopting a configuration in which pressure is applied in a direction in which the bottom portion of the device main body and the regulating portion main body are close to each other according to the tightening operation of the pressure screw with respect to the bottom portion of the device main body, the male screw portion is Since the bottom part is drawn toward the regulation part body that is screwed in by tightening the pressure screw, the upper surface of the thread of the male thread part and the lower surface of the thread of the female thread part at the threaded part of the male thread part and the female thread part are The rotation of the male screw portion can be restricted while in contact. As a result, according to this adjuster, unlike the configuration in which the lock nut is rotated to press the bottom portion from the outside of the bottom portion of the device body, the occurrence of inconvenience that the distance from the distal end portion to the bottom portion of the male screw portion is changed is ensured. Can be prevented.

  The adjuster according to claim 2 is configured such that the tip end portion of the male screw portion is screwed into the female screw portion formed in the bottom portion of the apparatus main body. In this case, in the configuration in which the base end portion of the male screw portion is screwed into the female screw portion formed in the base portion, in order to increase or decrease the protruding length of the male screw portion from the base portion, it is necessary to form the female screw portion to a certain extent, The thickness of the minute base portion is increased. On the other hand, in this adjuster, since it is not necessary to form the female screw portion in the base portion, the base portion can be made thinner correspondingly. As a result, the adjuster can be downsized as a whole.

  According to a third aspect of the present invention, a spherical protrusion is formed at the base end portion of the male screw portion, and a concave portion that rotatably supports the protrusion is formed at the base portion. For this reason, according to this adjuster, the external thread part in the state inclined with respect to the installation surface can be supported by the base part. Therefore, according to this adjuster, for example, when installing the apparatus main body on an inclined installation surface, it is possible to reliably and easily perform an adjustment operation to make the bottom of the apparatus main body horizontal.

  According to a fourth aspect of the present invention, the base end portion of the male screw portion is screwed into the female screw portion formed in the base portion, and the distal end portion of the male screw portion is engaged in the engagement hole formed in the bottom portion of the apparatus body. It is configured to let you. For this reason, according to this adjuster, it is not necessary to form the female threaded portion at the bottom of the device main body. As a result, for example, even if the device main body cannot secure a space for forming the female threaded portion at the bottom, the adjustment of the posture is ensured. Can be done.

FIG. 2 is a first perspective view showing configurations of an adjuster 1 and a device main body 200. FIG. 6 is a second perspective view showing configurations of the adjuster 1 and the device main body 200. FIG. 6 is a third perspective view showing the configuration of the adjuster 1 and the device main body 200. It is explanatory drawing explaining the usage method of the adjuster. FIG. 3 is a first perspective view showing configurations of an adjuster 101 and a device main body 300. It is a 2nd perspective view which shows the adjuster 101 and the apparatus main body 300 structure. It is a 3rd perspective view which shows the adjuster 101 and the apparatus main body 300 structure. FIG. 10 is an explanatory diagram for explaining how to use the adjuster 101.

  Hereinafter, embodiments of the adjuster will be described with reference to the accompanying drawings.

  First, the configuration of the adjuster 1 will be described. An adjuster 1 shown in FIG. 1 is an example of an adjuster. As shown in FIGS. 1 and 2, the bottom 201 of the device main body 200 as an example of the device main body and the installation surface 400 of the installation place where the device main body 200 is installed. (The surface of the table or floor: see FIG. 4) and the posture (height and inclination) of the device main body 200 is adjustable. Specifically, the adjuster 1 includes a base portion 11, a male screw portion 12, and a rotation restricting portion 13. In FIG. 2, the adjuster 1 is illustrated with the bottom 201 of the device main body 200 seen through.

  The base portion 11 is a member placed on the installation surface 400 (see FIG. 4), and as shown in FIG. 3, as an example, the base portion 11 is formed in a circular plate shape in plan view. Further, a concave portion 11b is formed in the central portion of the upper surface 11a of the base portion 11. In this case, the concave portion 11b has an inner peripheral surface formed in a hemispherical shape, and a spherical projection (a shape corresponding to a part of a sphere) formed on the base end portion 12a of the male screw portion 12 is formed in the concave portion 11b. It is comprised so that it may fit with respect to rotation. In this adjuster 1, since the protrusion 21 is rotatably fitted to the recess 11b as described above, the male screw portion 12 can be supported in an inclined state with respect to the installation surface 400. Yes.

  As shown in FIG. 4, the male screw portion 12 is configured such that the distal end portion 12 b can be screwed into the female screw portion 202 formed on the bottom portion 201 of the device main body 200. As shown in FIGS. 3 and 4, the base end portion 12 a of the male screw portion 12 is formed with a spherical protrusion 21 that can be fitted (detached) into the recess 11 b of the base portion 11 as described above. ing. Further, on the base end portion 12a side of the male screw portion 12 (slightly distal end portion 12b side from the protruding portion 21), a hexagon nut that engages a wrench when performing a rotation operation for rotating (turning) the male screw portion 12 is performed. An engaging portion 22 is integrally formed with the male screw portion 12. As shown in FIG. 4, the male screw portion 12 is disposed between the bottom portion 201 and the base portion 11 of the device main body 200, and the screwing amount with respect to the female screw portion 202 of the device main body 200 is increased or decreased in accordance with the rotation operation. Thus, the distance between the bottom part 201 and the base part 11 is changed.

  The rotation restricting portion 13 is a member that restricts the rotation of the male screw portion 12 and includes a restricting portion main body 31 and a pressure screw 32 as shown in FIG. As shown in the figure, the restricting portion main body 31 is formed in a plate shape having a circular shape in plan view as an example. In addition, a screw hole 31 a into which the male screw portion 12 can be screwed is formed in the central portion of the restricting portion main body 31. The restricting portion main body 31 is formed with four insertion holes 31b through which only the shaft portion 41 excluding the head portion 42 of the pressure screw 32 (cap screw, for example) can be inserted. In this case, as shown in the figure, the insertion holes 31b are formed so as to surround the screw hole 31a and be arranged at equal intervals on a virtual circle centered on the central axis of the screw hole 31a.

  In the rotation restricting portion 13, as shown in FIG. 4, the shaft portion 41 of the pressure screw 32 is inserted into the insertion hole 31b from the lower side of the restricting portion main body 31 in a state where the male screw portion 12 is screwed into the screw hole 31a. Then, the bottom portion 201 of the device main body 200 and the regulation portion main body are tightened by screwing the tip portion 41a of the shaft portion 41 into the female screw portion 203 (female screw portion for pressure screw) formed on the bottom portion 201 of the device main body 200. By applying force (pressurizing) in the direction in which 31 is close, rotation of the male screw portion 12 is restricted. As shown in FIG. 3, each female screw portion 203 of the device main body 200 is mutually connected to each insertion hole 31 b of the restricting portion main body 31 when the screw hole 31 a of the restricting portion main body 31 and the female screw portion 202 are opposed to each other. In order to face each other, the female screw part 202 is surrounded so as to be arranged at equal intervals on a virtual circle centered on the central axis of the female screw part 202.

  Next, how to use the adjuster 1 will be described with reference to the drawings. As an example, a method for adjusting the posture (height and inclination) of the device main body 200 using the four adjusters 1 will be described. It should be noted that a female screw portion 202 and four female screw portions 203 are respectively formed at four corners of the bottom portion 201 of the apparatus main body 200 (that is, four female screw portions 202 and sixteen female screw portions 203 are formed on the bottom portion 201). Shall. Further, as shown in FIG. 4, it is assumed that covers 204 are respectively attached to the inner side (upper side) of the four corners of the bottom portion 201 so as to cover the female screw portions 202 and 203.

  First, the front end portion 12b of the male screw portion 12 in the adjuster 1 is screwed into the screw hole 31a of the restriction portion main body 31 from one surface side of the restriction portion main body 31 in the rotation restricting portion 13, and the front end portion 12b is screwed to the other surface side of the restriction portion main body 31. To protrude. Next, this operation is performed for the other three adjusters 1.

  Subsequently, the four male screw portions 12 are attached to the bottom portion 201 with the bottom portion 201 of the device main body 200 facing upward (or sideways). Specifically, each tip portion 12b of each male screw portion 12 is screwed into four female screw portions 202 formed on the bottom portion 201, respectively. In this case, the lengths of the male screw portions 12 projecting to the outside of the bottom portion 201 (the lower side in FIG. 4) (projection lengths of the male screw portions 12 from the bottom portion 201 to the protruding portion 21) are substantially equal to each other. The screwing amount of the tip end portion 12b of each male screw portion 12 with respect to the female screw portion 202 is adjusted.

  Next, the base portions 11 of the four adjusters 1 are placed on the installation surface 400 (the surface of the table or floor: see FIG. 4) at the installation location where the apparatus main body 200 is installed. Subsequently, each tip portion 12b of each male screw portion 12 is fitted into a recess 11b formed on the upper surface 11a of each base portion 11 with the bottom portion 201 of the device body 200 to which the four male screw portions 12 are attached facing downward. Combine. In this case, the protrusion 21 is rotatably fitted to the recess 11b.

  Next, the posture (height and inclination) of the device main body 200 is adjusted. Specifically, the male screw portion 12 is rotated (rotated) by grasping the engaging portion 22 provided on the base end portion 12 a side of each male screw portion 12, and the female screw portion 202 of the bottom portion 201 in the apparatus main body 200. The protrusion length of each male screw part 12 from the bottom part 201 to the projection part 21 is adjusted by increasing / decreasing the screwing amount of the male screw part 12 with respect to. In this case, by engaging the wrench with the engaging portion 22 and rotating (turning) the male screw portion 12, the male screw portion 12 can be easily rotated even when the weight of the device main body 200 is large.

  Here, in the adjuster 1, as described above, the protrusion 21 is rotatably fitted to the recess 11b. For this reason, as a result of being able to support the male screw portion 12 in an inclined state with respect to the installation surface 400, when installing the device main body 200 on the inclined installation surface 400, the bottom 201 of the device main body 200 is placed horizontally. Thus, it is possible to perform the adjustment work as described above reliably and easily.

  Subsequently, the rotation of the male screw portion 12 is restricted (the male screw portion 12 is set in a rotation restricted state). Specifically, as shown in FIG. 4, the shaft portions 41 of the pressure screws 32 are respectively inserted into the four insertion holes 31 b formed in the restricting portion main body 31 of the rotation restricting portion 13, and then each shaft portion. The tip 41a of 41 is screwed into the female thread 203 formed on the bottom 201 of the device main body 200.

  Subsequently, the pressure screw 32 is rotated and tightened using a hexagon wrench having a tip portion inserted into a hexagon hole 42a (see FIG. 4) formed in the head portion 42 of the pressure screw 32. In this case, the four pressure screws 32 are tightened evenly. At this time, with the tightening of the pressurizing screw 32, a force in a direction in which the restricting portion main body 31 and the bottom portion 201 are close to each other is applied to the restricting portion main body 31 and the bottom portion 201, and the female screw portion 202 and the male screw portion 12 of the bottom portion 201 This force acts on the screwed portion, and this force generates a large frictional force on the screwed portion. As a result, the rotation of the male screw portion 12 is reliably restricted.

  Next, the operation of screwing and tightening the pressurizing screw 32 on the female screw portion 203 is performed in the same manner for the other three adjusters 1. As described above, each male screw portion 12 of each adjuster 1 is set in the rotation restricted state.

  In this adjuster 1, unlike the configuration using a set screw, damage to the screw thread in the male screw part 12 is avoided, so that it is difficult to smoothly rotate the male screw part 12 due to the screw thread damage. It can be reliably prevented.

  Further, in this adjuster 1, unlike the configuration in which the lock nut is rotated to press the bottom 201 from the outside of the bottom 201 of the device main body 200, the male screw portion rotates (provided) with the rotation of the lock nut. It is possible to reliably prevent the occurrence of inconvenience that the distance from the front end portion 12b of the male screw portion 12 to the bottom portion 201 changes. Specifically, in a configuration using a lock nut, before the bottom 201 is pressed by the lock nut, the bottom 201 falls downward due to the weight of the device main body 200, so that the male screw portion 12 and the female screw portion 202 are screwed together. The upper surface of the screw thread of the male screw portion 12 and the lower surface of the screw thread of the female screw portion 202 are in contact with each other, and a slight gap is generated between the lower surface of the screw thread of the male screw portion 12 and the upper surface of the screw thread of the female screw portion 202. Yes. When the bottom portion 201 is pressed by the lock nut in this state, the bottom portion 201 is relative to the male screw portion 12 by the gap described above between the lower surface of the screw thread of the male screw portion 12 and the upper surface of the screw thread of the female screw portion 202. As a result, the distance from the front end portion 12b of the male screw portion 12 to the bottom portion 201 changes.

  On the other hand, in the adjuster 1, as described above, the regulating portion main body 31 presses the male screw portion 12 toward the bottom portion 201 by tightening the pressure screw 32, that is, by tightening the pressure screw 32, The rotation restricting portion 13 is configured so that the bottom portion 201 is drawn toward the restricting portion main body 31 into which the portion 12 is screwed. For this reason, the male screw portion 12 is set in the rotation restricted state while the upper surface of the screw thread of the male screw portion 12 and the lower surface of the screw thread of the female screw portion 202 are in contact with each other at the threaded portion of the male screw portion 12 and the female screw portion 202. As a result, it is possible to reliably prevent the occurrence of inconvenience that the distance from the front end portion 12b of the male screw portion 12 to the bottom portion 201 changes.

  On the other hand, when readjusting the posture of the device main body 200, each pressure screw 32 of the rotation restricting portion 13 is loosened to release the rotation restricting state of the male screw portion 12, and each pressure screw 32 is removed from the restricting portion main body 31. Remove. Thereby, since the external thread part 12 will be in a rotatable state, the external thread part 12 is rotated (rotated) and the protrusion length of the external thread part 12 is adjusted. Subsequently, the male screw portion 12 that has been adjusted is set in the rotation restricted state by the procedure described above.

  As described above, in the adjuster 1, the tip of the shaft portion 41 is connected to the regulating portion main body 31 in which the screw hole 31 a into which the male screw portion 12 can be screwed and the female screw portion 203 formed in the bottom portion 201 of the device main body 200. The rotation restricting portion 13 is configured to include a pressure screw 32 that applies (presses) a force in a direction in which the bottom portion 201 of the device main body 200 and the restricting portion main body 31 approach each other by a tightening operation of screwing the portion 41a. For this reason, according to this adjuster 1, unlike the configuration using a set screw, it is possible to avoid damage to the screw thread in the male screw part 12, so that the male screw part 12 can be smoothly rotated due to the screw thread damage. It is possible to reliably prevent the occurrence of inconvenience that becomes difficult. Further, according to the adjuster 1, the bottom 201 is drawn by tightening the pressure screw 32 toward the restriction body 31 into which the male screw 12 is screwed, so that the male screw 12 and the female screw 202 are screwed together. The rotation of the male screw portion 12 can be restricted while the upper surface of the screw thread of the male screw portion 12 and the lower surface of the screw thread of the female screw portion 202 are in contact with each other. As a result, according to the adjuster 1, unlike the configuration in which the lock nut is rotated to press the bottom 201 from the outside of the bottom 201 of the device main body 200, the distance from the tip 12b to the bottom 201 of the male screw portion 12 changes. Such inconvenience can be reliably prevented.

  Further, the adjuster 1 is configured to screw the tip end portion 12 b of the male screw portion 12 into the female screw portion 202 formed in the bottom portion 201 of the device main body 200. In this case, in the configuration in which the base end portion 12a is screwed into the female screw portion formed on the base portion 11, in order to increase or decrease the protruding length of the male screw portion 12 from the base portion 11, it is necessary to form the female screw portion to be somewhat long. Accordingly, the thickness of the base portion 11 is increased. On the other hand, in this adjuster 1, since it is not necessary to form an internal thread part in the base part 11, since the base part 11 can be comprised thinly, the adjuster 1 can be reduced in size as a whole.

  In the adjuster 1, a spherical protrusion 21 is formed on the base end portion 12 a of the male screw portion 12, and a recess 11 b that rotatably supports the protrusion 21 is formed on the upper surface 11 a of the base portion 11. For this reason, according to the adjuster 1, the male screw portion 12 that is inclined with respect to the installation surface 400 can be supported by the base portion 11. Therefore, according to this adjuster 1, for example, when installing the apparatus main body 200 on the inclined installation surface 400, it is possible to reliably and easily perform an adjustment operation such that the bottom 201 of the apparatus main body 200 is horizontal. it can.

  Next, an adjuster 101 shown in FIG. 5 as another embodiment of the adjuster will be described. In the following description, the same components as those of the adjuster 1 described above are denoted by the same reference numerals, and redundant description is omitted.

  As shown in FIGS. 5 and 6, the adjuster 101 is arranged between the bottom 301 of the device main body 300 as an example of the device main body and the installation surface 400 (see FIG. 8) of the installation location where the device main body 300 is installed. It is configured so that the posture of the device main body 300 can be adjusted. Specifically, the adjuster 101 includes a base portion 111, a male screw portion 112, and a rotation restricting portion 13. In FIG. 6, the adjuster 101 is illustrated with the bottom 301 of the device main body 300 seen through.

  The base portion 111 is a member that is placed on the installation surface 400 (see FIG. 8) of the installation location where the apparatus main body 300 is installed, and is formed in a substantially cylindrical shape as an example, as shown in FIG. . In addition, a female screw part 111 b that is open on the upper surface 111 a side and can be screwed into the male screw part 112 is formed at the center of the base part 111. Further, on the upper surface 111 a side of the base portion 111, a female screw portion 111 c (female screw portion for a pressure screw) capable of screwing the shaft portion 41 of the pressure screw 32 in the rotation restricting portion 13 is formed. In this case, as shown in FIG. 7, when the female screw portion 111 c faces the screw hole 31 a of the restricting portion main body 31 and the female screw portion 111 b in the rotation restricting portion 13, In order to face each other, they are formed so as to surround the female screw part 111b and to be arranged at equal intervals on a virtual circle centered on the central axis of the female screw part 111b.

  As shown in FIG. 8, the male screw portion 112 is configured such that the base end portion 112 a can be screwed into the female screw portion 111 b of the base portion 111. As shown in FIGS. 7 and 8, the tip portion 112 b of the male screw portion 112 is formed with a conical portion 121 that engages with an engagement hole 302 formed in the bottom portion 301 of the device main body 300. Further, on the distal end portion 112b side of the male screw portion 112 (a little closer to the base end portion 112a side than the conical portion 121), an engagement for engaging a wrench when performing a rotation operation for rotating (turning) the male screw portion 112. The portion 122 is integrally formed with the male screw portion 112. As shown in FIG. 8, the male screw portion 112 is disposed between the bottom portion 301 and the base portion 111 of the apparatus main body 300, and the screwing amount of the base portion 111 with respect to the female screw portion 111 b is increased or decreased in accordance with the rotation operation. Thus, the distance between the bottom 301 and the base 111 is changed.

  The rotation restricting portion 13 is configured similarly to the rotation restricting portion 13 of the adjuster 1 described above, and has a function of restricting the rotation of the male screw portion 112. Specifically, in the rotation restricting portion 13, as shown in FIG. 8, the shaft of the pressure screw 32 is inserted into the insertion hole 31b from the upper side of the restricting portion main body 31 in a state where the male screw portion 112 is screwed into the screw hole 31a. The portion 41 is inserted, and a tightening operation for screwing the tip end portion 41a of the shaft portion 41 into the female screw portion 111c of the base portion 111 is performed (pressure is applied) in a direction in which the base portion 111 and the restricting portion main body 31 are close to each other. Thus, the rotation of the male screw portion 112 can be restricted.

  Next, a method for using the adjuster 101 will be described with reference to the drawings. As an example, a method of adjusting the posture (height and inclination) of the device main body 300 using the four adjusters 101 will be described. It is assumed that engagement holes 302 are formed at the four corners of the bottom portion 301 of the device main body 300 (that is, four engagement holes 302 are formed in the bottom portion 301).

  First, the base end portion 112 a of the male screw portion 112 in the adjuster 101 is screwed into the screw hole 31 a of the restricting portion main body 31 from one surface side of the restricting portion main body 31 in the rotation restricting portion 13. Project to the surface side. Next, this operation is performed for the other three adjusters 101.

  Subsequently, the base portions 111 of the four adjusters 101 are placed on the installation surface 400 (see FIG. 8) of the installation location where the apparatus main body 300 is installed. Next, each male screw portion 112 of the adjuster 101 is attached to each base portion 111. Specifically, each base end portion 112 a of each male screw portion 112 is screwed into each female screw portion 111 b formed on each base portion 111. In this case, the length of each male screw portion 112 protruding from the base portion 111 (the length of the protrusion from the upper surface 111a of the base portion 111 to the tip portion of the conical portion 121) is approximately the same as each other. The screwing amount of the base end portion 112a of the male screw portion 112 is adjusted.

  Subsequently, the device main body 300 is placed on the four adjusters 101, and the device main body 300 is supported by each adjuster 101. In this case, when the device main body 300 is placed on each adjuster 101, the conical portion 121 of each male screw portion 112 in each adjuster 101 is inserted into the engagement hole 302 formed in the bottom portion 301 of the device main body 300. Then, the conical part 121 and the engagement hole 302 are engaged.

  Next, the posture (height and inclination) of the device main body 300 is adjusted. Specifically, the male threaded portion 112 with respect to the female threaded portion 111 b of the base 111 is rotated by rotating (rotating) the male threaded portion 112 by grasping the engaging portion 122 provided on the distal end 112 b side of each male threaded portion 112. The protrusion length of each male screw part 112 from the upper surface 111a of the base part 111 to the tip part of the conical part 121 is adjusted by increasing / decreasing the screwing amount. In this case, by engaging (engaging) the wrench with the engaging portion 122 and rotating (turning) the male screw portion 112, the male screw portion 112 can be easily rotated even when the weight of the device main body 300 is large.

  Subsequently, the rotation of the male screw portion 112 is restricted (the male screw portion 112 is set in a rotation restricted state). Specifically, as shown in FIG. 8, the shaft portions 41 of the pressure screws 32 are respectively inserted into the four insertion holes 31 b formed in the restricting portion main body 31 of the rotation restricting portion 13, and then each shaft portion. 41 is screwed into a female screw portion 111c formed on the base portion 111.

  Subsequently, the pressure screw 32 is rotated and tightened using a hexagon wrench having a tip inserted into a hexagon hole 42a (see FIGS. 7 and 8) formed in the head portion 42 of the pressure screw 32. In this case, the four pressure screws 32 are tightened evenly. At this time, as the pressure screw 32 is tightened, a force in a direction in which the restricting portion main body 31 and the base portion 111 are close to each other is applied to the restricting portion main body 31 and the base portion 111, and the female screw portion 111 b and the male screw of the base portion 111 are applied. This force acts on the screwed portion with the portion 112, and a large frictional force is generated in the screwed portion by this force. As a result, the rotation of the male screw portion 112 is reliably restricted.

  Next, the operation of screwing and tightening the pressurizing screw 32 into the female screw portion 111b is performed in the same manner for the other three adjusters 101. As described above, each male screw portion 112 of each adjuster 101 is set in the rotation restricted state.

  Also in this adjuster 101, unlike the configuration using a set screw, since the screw thread in the male screw part 112 is prevented from being damaged, it is difficult to smoothly rotate the male screw part 112 due to the screw thread damage. Can be reliably prevented.

  On the other hand, when the position of the device main body 300 is readjusted, each pressure screw 32 in the rotation restricting portion 13 is loosened to release the rotation restricting state of the male screw portion 112, and then each pressure is applied from the restricting portion main body 31. Remove the screw 32. Next, the protruding length of the male screw portion 112 is adjusted by rotating (turning) the male screw portion 112. Subsequently, the male screw portion 112 that has been adjusted is set to the rotation restricted state in the above-described procedure.

  Thus, in this adjuster 101, the tip end portion 41a of the shaft portion 41 is connected to the regulating portion main body 31 in which the screw hole 31a into which the male screw portion 112 can be screwed and the female screw portion 111c formed in the base portion 111. The rotation restricting portion 13 is configured to include a pressurizing screw 32 that applies (presses) a force in a direction in which the base portion 111 and the restricting portion main body 31 approach each other by a screwing operation. For this reason, according to this adjuster 101, unlike the configuration using a set screw, it is possible to avoid damage to the screw thread in the male screw part 112. Therefore, the male screw part 112 can be smoothly rotated due to the screw thread damage. It is possible to reliably prevent the occurrence of inconvenience that becomes difficult.

  Further, the adjuster 101 screws the base end portion 112 a of the male screw portion 112 into the female screw portion 111 b formed in the base portion 111, and the male screw portion 112 of the male screw portion 112 into the engagement hole 302 formed in the bottom portion 301 of the apparatus main body 300. The distal end portion 112b (conical portion 121) is configured to be engaged. For this reason, according to this adjuster 101, since it is not necessary to form an internal thread part in the bottom part 301 of the apparatus main body 300, also about the apparatus main body 300 which cannot ensure the space which forms an internal thread part in the bottom part 301, it is a posture. Adjustment can be made reliably.

  The adjuster is not limited to the above configuration. For example, the configuration example in which the projection 21 of the male screw portion 12 can be attached to and detached from the concave portion 11b formed in the base portion 11 has been described above, but the base end portion of the base portion 11 and the male screw portion 12 using a ball joint or a universal joint. The structure which connects 12a can also be employ | adopted.

  Moreover, the structure of the rotation control part 13 can also be changed suitably. For example, the example of using the plate-shaped regulating unit main body 31 having a circular shape in plan view has been described above. In addition, it is possible to use a restriction body having an arbitrary shape such as a block-shaped restriction body. Further, although an example using four pressure screws 32 has been described above, any number (1 to 3, or 5 or more) pressure screws 32 can be used.

DESCRIPTION OF SYMBOLS 1,101 Adjuster 11,111 Base part 11a Upper surface 11b Recessed part 12,112 Male thread part 12a, 112a Base end part 12b, 112b Tip part 13 Rotation restricting part 21 Protrusion part 31 Restriction part main body 31a Screw hole 31b Insertion hole 32 Pressure screw 111b, 111c, 202, 203 Female thread part 121 Conical part 200, 300 Device main body 201, 301 Bottom part 302 Engagement hole 400 Installation surface

Claims (4)

An adjuster disposed between the bottom of the device body and the installation surface on which the device body is installed to adjust the posture of the device body,
The base portion placed on the installation surface and the internal thread portion formed on one of the bottom portion and the base portion are configured to be screwed and are disposed between the bottom portion and the base portion. And a male screw part that changes the distance between the bottom part and the base part by increasing or decreasing the screwing amount with respect to the female screw part accompanying a rotation operation, and a rotation restricting part that restricts the rotation of the male screw part,
The rotation restricting portion includes a restricting portion main body formed with a screw hole into which the male screw portion can be screwed, and either of the rotation restricting portion and the restricting portion main body disposed in the restricting portion main body according to a tightening operation on the one of the rotation restricting portion. An adjuster provided with a pressurizing screw that pressurizes in the direction in which the regulating portion main body comes close. The base portion is configured to be able to support a proximal end portion of the male screw portion,
The male screw portion is configured such that a tip portion can be screwed into the female screw portion formed in the bottom portion as any one of the above,
The rotation restricting portion is formed on the bottom portion of the tip portion of the shaft portion that is inserted into an insertion hole formed in the restricting portion main body so that the shaft portion of the pressure screw can be inserted. The adjuster according to claim 1, wherein the pressurization is performed in accordance with the tightening operation to be screwed into the female thread portion. A spherical protrusion is formed on the base end of the male screw portion,
The adjuster according to claim 2, wherein the base portion is formed with a concave portion that rotatably supports the protrusion portion, and is configured to be able to support the male screw portion in an inclined state with respect to the installation surface. The male screw portion is configured to be capable of screwing a base end portion into the female screw portion formed in the base portion as one of the above, and to an engagement hole formed in a bottom portion of the device main body. It is configured to allow engagement of the tip,
The rotation restricting portion, the said pressure screw the tip of the shaft portion which the shaft portion is inserted into the insertion possible with said regulating portion insertion hole formed in the body of the pressure screw are formed in the base portion The adjuster according to claim 1, wherein the pressurization is performed in accordance with the tightening operation to be screwed into the female screw portion.

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