JP2005240837A - Tube clamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To retain three kinds of tubes of different diameter. <P>SOLUTION: A clamp part 10 is U-shaped as a whole in a front view and consists of a base part 4 forming a horizontal section, vertical wall parts 6, 6 formed vertically from both end parts of the base part 4, first retention arms 1, 1 and second retention arms 2, 2 formed obliquely downward at roughly 45 degrees from an upper most end part of the vertical wall parts 6, 6, and cantilever shaped retention arms formed by third retention arms 3, 3provided obliquely downward from a middle parts of the vertical wall parts 6, 6. A group of cramp part 10 and attachment part 5 in this construction are formed out of plastic material as one piece. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a tube clamp having a clamp portion that can hold three types of tubes having different diameters.

As a conventional tube holding clamp that can hold tubes having different diameters, for example, as described in JP-A-11-201330, two types of tubes having different diameters are clamped. Is mentioned. This is a horizontally long semicircular receiving portion formed by cutting a long hole in half, and the upper portion of the horizontally long semicircular receiving portion is provided on the basis of the receiving portion. It is basically composed of two retaining pieces having different lengths. Of these retaining pieces, those having a short length are those having a large diameter value, i.e., which are responsible for holding a thick tube, It is designed to hold a small diameter tube (thin tube).
Japanese Patent Laid-Open No. 11-201330

  By the way, in the above-mentioned conventional one, the one having a small diameter, that is, the holding of the fine tube, is provided in the longer retaining piece and the receiving portion and formed so as to be elastically deformable. It is intended to be performed by the second receiving part. On the other hand, a tube having a large diameter, that is, a thick tube is held by a horizontally long semicircular first receiving portion and a short retaining piece. From these facts, in this conventional one, there is a difference in the pitch between the tubes held when holding a small diameter tube and when holding a large diameter tube. There is a problem that holding (clamping) cannot be performed. In addition, the interval between the clamp parts (holding parts) must be set in accordance with the horizontally long semicircular receiving part, and the pitch between the clamp parts must be made large (wide). is there. Furthermore, there is a problem that only two types of tubes having different diameters can be held. It is an object of the present invention to provide a tube clamp having a clamp portion that can reliably hold three types of tubes having different diameters, particularly in a state where the holding interval of the tubes is kept at a small value. This is the object (problem) of the present invention.

  In order to solve the above problems, the following measures are taken in the present invention. That is, in the first invention according to the first aspect of the present invention, with respect to the tube clamp having a clamp portion formed so that three types of tubes having different diameters can be mounted, the clamp portion is disposed in the horizontal direction. Is formed on the basis of a U-shaped frame portion consisting of a base portion provided in the vertical direction and vertical wall portions provided upright at both ends of the base portion, and is formed at the center of the base portion. A concave receiving portion provided at a part of the arc and a circular circle formed at the center of the U-shaped frame portion and forming the receiving portion. First cantilever-shaped holding arms provided radially from the upper end portions of the vertical wall portions toward a virtual center point formed with a predetermined amount offset above the center point Similarly to the first holding arm, the first holding arm is provided radially from the base portion of the first holding arm to the upper ends of the vertical wall portions toward the virtual center point. A cantilever-shaped second holding arm that is formed shorter than the vertical wall portion, and is formed so as to extend obliquely downward from the middle of the vertical wall portions toward the central portion of the U-shaped frame portion. And two cantilever shapes formed such that the respective leading end portions are located on the inner side of the circumferential line of the circle formed from the leading end portions of the first holding arms and the virtual center point. And a third holding arm.

  In the second invention which is the invention described in claim 2, regarding the tube clamp having a clamp portion formed so that three kinds of tubes having different diameters can be attached, the clamp portion is horizontally arranged. Is formed on the basis of a U-shaped frame portion consisting of a base portion provided in the vertical direction and vertical wall portions provided upright at both ends of the base portion, and is formed at the center of the base portion. However, the concave receiving part formed by a part of the arc and the upper end parts of the two vertical wall parts are obliquely downward and symmetrical. The first holding arm in the same manner as the first holding arm, and the first holding arm in the form of a cantilever, and the base of the first holding arm to the upper ends of the vertical wall portions, respectively. In the same direction as A cantilever-shaped second holding arm which is provided so as to be symmetrical and formed shorter than the first holding arm, and the U-shaped frame portion from the middle of the vertical wall portions. It is formed so as to extend toward the central portion and obliquely downward, and each distal end portion corresponds to each distal end portion of the first holding arm at the lower portion thereof. In addition to being provided, the configuration is configured to include a cantilever-shaped third holding arm formed so as to be symmetrical.

  In the third invention which is the invention described in claim 3, with respect to the tube clamp according to either claim 1 or claim 2, an arcuate shape is provided at each distal end of the third holding arm. A configuration is adopted in which a part is formed, a concave surface is formed toward the upper side, and a shoe portion is formed so that each has a predetermined arc length.

  Moreover, in 4th invention which is invention of Claim 4, each tip part of said 1st holding arm and 2nd holding arm is related with the tube clamp in any one of Claim 1 or Claim 2. However, it has a concave surface facing downward, has a predetermined arc length, and has a tube retaining function portion formed so as to be symmetric. I decided to take the composition.

  According to the first invention, three types of tubes having different diameters can be reliably held (clamped). That is, for the tube with the largest diameter, the lower part is supported from the lower side by a receiving part in the form of a concave opening upward, and the upper part is at the upper end of the vertical wall part on both sides. Extending obliquely downward from the top, and further being held so as to be pressed from the upper side by the distal ends of a plurality of cantilever-shaped second holding arms formed radially toward the center of the tube. Become. The second holding arm that holds the large-diameter tube so as to be pressed from above is formed by a cantilever-like member that exhibits a predetermined spring reaction force. The tube can be easily inserted into the holding portion (clamp portion) by elastically deforming the cantilever-shaped second holding arm in the lateral direction. Then, the tube once inserted into the clamp part is always pressed against the lower receiving part side by the elastic force of the second holding arm so that the tube is securely held in the clamp part. Become. In addition, the tube having a medium diameter is supported by the receiving portion on the lower side as in the case of the large diameter, and the upper side is set to be longer than the second holding arm. The first holding arm is held so as to be pressed from above, and the entire tube is securely held. In addition, for a small diameter tube having a smaller diameter than this, the upper side is pressed down by the tip of the first holding arm and the lower side is pressed by the tip of the third holding arm. Thus, it is supported by a spring reaction force acting upward from the lower side of the third holding arm. In other words, the small-diameter tube having the smallest diameter is securely held as a whole by a four-point support structure including a third holding arm supported from the lower side and a first holding arm acting to press from the upper side. .

  Also in the second invention, as in the first invention, the tubes having three different diameters, large, medium, and small, are respectively the first holding arm, the second holding arm, and the first. The interaction between the three holding arms and the receiving part ensures that the holding part is held at the clamp part.

  Further, in the third invention, since the shoe portion having the concave portion toward the upper side is provided at the tip portion of the third holding arm, the concave portion of the shoe portion is provided. When the small-diameter tube is held, the lower-diameter tube is supported so as to be lifted upward, so that the small-diameter tube is reliably held.

  Further, in the fourth invention, the first holding arm and the second holding arm are formed with a concave surface at the front end portions thereof so as to have a predetermined arc length. The formed tube retaining function part is provided, and each tube once fitted in the clamp part is pressed on the upper surface of the tube by a cantilever-like holding arm extending obliquely from above. By the action of the tube retaining function portion formed at the distal end portion of the cantilever-like holding arm, the cantilever-like holding arm is always pressed obliquely downward. As a result, the tube once held in the clamp portion does not come out upward. In other words, each tube is reliably held in the clamp portion by the tube retaining function portion formed at the tip of the first holding arm and the second holding arm.

  The best mode for carrying out the present invention will be described with reference to FIGS. As shown in FIG. 1, according to this embodiment, in a state where a plurality of clamp portions 10 having a certain width and a plurality of these clamp portions 10 are provided in parallel, these groups of clamp portions are integrated together. The attachment portion 5 fulfills the role of attaching to a predetermined member. The clamp portion 10 having such a configuration has a U-shape as a whole as shown in FIG. 2, for example, as viewed from the front, and includes a base portion 4 that forms a horizontal portion and the base portion. The vertical wall portions 6, 6 are formed upright from both ends of the portion 4, and are formed so as to extend downward at an angle of approximately 45 ° from the uppermost end portion of the vertical wall portions 6, 6. Each holding arm in the form of a cantilever formed by one holding arm 1 and second holding arm 2 and further third holding arms 3 and 3 which are provided obliquely downward from an intermediate portion of the vertical wall portions 6 and 6. It consists of. A group of the clamp portions 10 and the attachment portions 5 and the like having these configurations are integrally formed of a plastic material.

  In such a configuration, the clamp portion 10 includes a base portion 4 formed in a horizontal direction and both vertical wall portions 6 provided in an upright and parallel manner from both ends of the base portion 4. 6 is formed on the basis of a U-shaped frame portion formed in step 6. And the receiving part 41 formed over the whole width direction of the clamp part 10 is provided in the place of the center part of the frame part which consists of such a U shape. The receiving portion 41 has a concave shape toward the upper side, and the center point of the circle forming the concave surface is formed in the central portion between the vertical wall portions 6 and 6, as shown in FIG. The point O2 is a predetermined position on the center line (OO). Then, at the uppermost end portions of the vertical wall portions 6 and 6 that form the clamp portion 10 together with the base portion 4 and the like having such a receiving portion 41, about 30 ° to 50 ° centering on 45 ° The first holding arms 1 and 1 and the second holding arms 2 and 2 are provided so as to extend obliquely downward with an angle within the range. Further, the third holding arms 3 and 3 are provided from the middle part of the both vertical wall parts 6 and 6 downward and at an angle of substantially 45 °. These arms 1, 1, 2, 2, 3, 3 are symmetrical with respect to a center line (OO) formed at the center of both vertical wall portions 6, 6 provided in parallel. Is to be provided.

  Next, the detailed structure about each holding arm 1, 2, and 3 which consists of these structures is demonstrated. First, the first holding arms 1 and 1 involved in holding a tube having a medium diameter (hereinafter referred to as a medium diameter tube) and a tube having the smallest diameter (hereinafter referred to as a small diameter tube) will be described. As shown in FIGS. 1 and 2, this is provided at the inner side in the width direction of the clamp portion 10 and is substantially obliquely downward from the uppermost end portions of the vertical wall portions 6, 6. It has a cantilever-like configuration provided with an angle of 45 °. Further, in the side view, as shown in FIG. 2, the concave surface on the center line (OO) formed at the center portion between the two vertical wall portions 6, 6 and forming the receiving portion 41. It has a form extending in the radiation direction with the virtual center point (O1) formed at a position offset by a predetermined amount above the center point (O2) of the circle as a base point. The tube retaining function portions 11 and 11 that form a concave surface downward and have a predetermined arc length are formed symmetrically at the tip portion. It is intended to be provided. And each tip part 111, 111 of the tube retention function part 11 and 11 which consists of such a structure is the center point (O2) of the circle | round | yen which forms the said concave-shaped receiving part 41, as shown in FIG. Is set to be on the circumference of a circle formed around the center.

  Next, like the first holding arms 1 and 1, the second holding arms 2 and 2 are formed from the uppermost end portions of the vertical wall portions 6 and 6 toward the lower side by substantially 45 °. It consists of a cantilever arm member. Specifically, as shown in FIG. 1, two clamp members 10 are provided in parallel on the outside of the first holding arms 1, 1 in the width direction of the clamp portion 10. As in the case of the arms 1 and 1, the arm 1 and the arm 1 are provided so as to be symmetrical with respect to the radiation direction around the virtual center point O 1. Then, as in the case of the first holding arms 1, 1, a concave surface is formed at the tip of each of the second holding arms 2, 2 and has a predetermined arc length. The tube retaining function portions 21 and 21 formed so as to have a right-and-left symmetrical shape are provided. Note that the length of the second holding arms 2 and 2 having such a configuration is set shorter than the first holding arms 1 and 1 as shown in FIG. It is designed to be used when holding. Specifically, as shown in FIG. 2, each of the distal end portions 211 and 211 of the tube retaining function portions 21 and 21 formed at the distal end portion of the arm is based on the virtual center point (O1). It is set to come on the circumference of a circle having a predetermined diameter.

  Next, the third holding arms 3 and 3 are provided so as to extend obliquely downward from the middle portion between the two vertical wall portions 6 and 6 and have a cantilever shape. It is. And the shoe part 33 and 33 which has a concave-shaped receiving surface are provided in the front-end | tip part. Further, the position of the concave receiving surface forming the shoe portions 33, 33 is a tube retaining function provided at the distal end portion of the first holding arm 1, 1 with the virtual center point (O1) as the center. The portions 11 and 11 are set at positions slightly inside the circumference of the circle formed at the respective tip portions 111 and 111 thereof. With the concave portions of the tube retaining function portions 11 and 11 formed at the tip portions of the shoe portions 33 and 33 of the third holding arms 3 and 3 and the first holding arms 1 and 1 having the above-described configuration, The tube is held (clamped) in a four-point support configuration.

  Next, how the various tubes are attached to the clamp portion 10 having such a configuration will be described with reference to FIGS. First, the case where the tube with the largest diameter, that is, the large-diameter tube 9 is mounted will be described with reference to FIG. In this case, first, as shown in FIG. 3A, a thick tube 9 is installed between the first holding arms 1 and 1 and the second holding arms 2 and 2 provided on the left and right sides. The tube 9 is pushed in the direction of the arrow shown in FIG. As a result, the holding arms 1, 1, 2, and 2 having elasticity are bent and opened to the left and right. As a result, the tube 9 has the tube retaining function portions 11 and 11 formed at the distal ends of the first holding arms 1 and 1, and the tube retaining function portion 21 and the second retaining arms 2 and 2 formed at the distal ends. As shown in FIG. 3B, the lower part of the tube 9 comes into contact with the receiving part 41 as shown in FIG. At the same time, as shown in FIG. 3 (B), the upper portion of the tube 9 is inclined downward from an upward 45 ° direction by the axial tension of the cantilever-like second holding arms 2 and 2. It can be pressed down. Further, in addition to these, the concave portion of the tube holding function portions 21 and 21 provided at the distal end portions of the second holding arms 2 and 2 has a predetermined arc length and the tube 9 The upper part comes into contact with the circumferential surface of the oblique 45 ° direction. As a result, the upward movement of the tube 9 is regulated by the diagonally downward pressing force of the tube retaining functions 21, 21. In this state, the first holding arms 1 and 1 are bent as shown in FIG. 3B, and the tube retaining function portions 11 formed at the distal ends of the first holding arms 1 and 1. , 11 are accommodated in the first pocket portion 61. At the same time, the elastic force generated by the bending deformation of the first holding arms 1 and 1 acts in the direction of the virtual center point (O1) that is the center point of the tube 9. Further, the third holding arms 3 and 3 are also bent, and the shoe portions 33 and 33 formed at the tip portions thereof are accommodated in the second pocket portion 62. Further, the second holding arms 2 and 2 have an appropriate elastic repulsive force, and the concave tube retaining function portions 21 and 21 formed at the distal ends thereof have predetermined arc lengths, respectively. Therefore, even if there is some product variation in the value of the diameter of the tube 9 to be mounted, the circumferential surface of each tube 9 in the oblique 45 ° upward direction is The tube retaining function portions 21 and 21 are surely pressed from above by the concave surface portions forming the tube retaining function portions 21 and 21. As a result, the retaining function of the tube 9 is effectively exhibited.

  Next, the mounting mode of the medium diameter tube having a medium diameter value will be described with reference to FIG. Also in this case, as in the case of the large-diameter tube, the tube 9 is placed between the first holding arms 1 and 1 and the second holding arms 2 and 2 provided on the left and right as shown in FIG. Interrupt. Then, the holding arms 1, 1, 2, 2 having elasticity are bent and opened left and right. As a result, the tube 9 slides at the tube retaining function portions 11, 11, 21, 21 provided at the distal ends of the first holding arms 1, 1 and the second holding arms 2, 2, 4 (B), the lower part of the base 4 comes into contact with the receiving surface of the receiving part 41 provided on the base 4. At the same time, as shown in FIG. 4B, the upper portion is moved from the substantially upper 45 ° direction to the center point (O2) by the axial tension of the cantilever-shaped first holding arms 1 and 1. It will be able to be pressed down. Further, in addition to these, the concave surface portion forming the tube retaining function portions 11, 11 provided at the distal end portions of the first holding arms 1, 1 is the upper portion of the tube 9, and is a circle in the oblique 45 ° direction. The contact engagement is made while maintaining a predetermined arc length on the peripheral surface. As a result, the upward movement of the tube 9 is restricted by the downward pressing force formed by the concave surface portions of the tube retaining function portions 11 and 11 at an angle of 45 °. At this time, a part of the lower part of the tube 9 is pressed in the O2 direction which is the center point by the spring reaction force of the third holding arms 3 and 3. As a result, the tube 9 is pressed in the direction of the center point (O2) in a substantially uniform state over the entire circumference of the transverse cross section, and is securely held in the clamp portion 10. In the case of holding the large-diameter tube 9, as in the case of holding the medium-diameter tube 9, even if there is some product variation in the diameter of the tube 9, The concave portion of the tube retaining function portions 11, 11 formed at the distal end portion securely holds the tube outer peripheral surface in the 45 ° direction obliquely above the tube 9, so that the tube 9 can be pulled upward. A stop function comes to be demonstrated.

  Next, the mounting mode of the small-diameter tube having the smallest diameter value will be described with reference to FIG. In this case, first, as shown in FIG. 5A, a small-diameter tube 9 having a small diameter value is installed between the first holding arms 1 and 1 and the second holding arms 2 and 2 provided on the left and right. In such a state, the tube 9 is pushed in the direction of the arrow shown in FIG. As a result, the holding arms 1, 1, 2, and 2 having elasticity are bent and opened to the left and right. As a result, the tube 9 has the tube retaining function portions 11 and 11 formed at the distal ends of the first holding arms 1 and 1, and the tube retaining function portion 21 and the second retaining arms 2 and 2 formed at the distal ends. As shown in FIG. 5 (B), the left and right shoe portions 33, 33 provided at the distal end portions of the third holding arms 3, 3 are positioned in front of the receiving portion 41, as shown in FIG. It will be received by the concave receiving surface. In such a state, the holding position of the tube 9 is set. At the same time, as shown in FIG. 5 (B), the upper portion of the tube 9 is inclined downward from an upward 45 ° direction by the axial tension of the cantilever-like first holding arms 1 and 1. It can be pressed down. Further, in addition to these, the concave portion of the tube retaining function portions 11, 11 provided at the distal ends of the first holding arms 1, 1 is the oblique 45 ° circumferential surface of the upper portion of the tube 9. It comes to contact in the state which hold | maintained predetermined arc length. As a result, the upward movement of the tube 9 is restricted. As described above, in the present embodiment, the small-diameter tube 9 has the left and right first holding arms 1 and 1 from the upper side around the virtual center point (O1) as shown in FIG. Left and right shoe portions 33, 33 formed at the concave surface portions forming the tube retaining function portions 11, 11 formed at the distal end portions of the third holding arms 3, 3 from the lower side. It will be held at. That is, the four-point support structure is held in an even state.

  As described above, in the present embodiment, the first holding arms 1 and 1 and the second holding arms 2 and 2 that are provided symmetrically from the upper oblique 45 ° direction are supported from the lower side. Three types of tubes 9 having different diameters, large, medium, and small, are securely held by the third holding arms 3 and 3 that are formed so as to be symmetrical. Become. In addition, the various tubes 9 attached to the respective clamp portions 10 in this way are arranged in a state where there is no difference in the mounting pitch even if their diameters are different. In addition, the mounting operation of the various tubes 9 to the clamp portion 10 can be efficiently performed by a simple manual operation.

  Further, in the present embodiment, since the tube clamp having the above-described configuration is integrally formed of a plastic material, for example, the entire tube clamp is injected using a thermoplastic material. It becomes possible to form integrally by a forming means or the like, and it becomes possible to improve the productivity and to reduce the manufacturing cost.

It is a perspective view which shows the whole structure of this invention. It is a front view which shows the whole clamp part structure which comprises the principal part of this invention. It is a figure which shows the aspect in case the large diameter tube with the largest value of diameter is mounted | worn with the clamp part concerning this invention. It is a figure which shows the aspect in the case of mounting | wearing the clamp part concerning this invention with a medium diameter tube with a medium diameter value. It is a figure which shows the aspect in case the small diameter tube with the smallest value of a diameter is mounted | worn with the clamp part concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st holding arm 11 Tube retaining function part 111 Tip part 2 Second retaining arm 21 Tube retaining function part 211 Tip part 3 Third retaining arm 33 Shoe part 4 Base part 41 Receiving part 5 Mounting part 6 Vertical wall part 61 First pocket 62 Second pocket 9 Tube 10 Clamp

Claims (4)

  In a tube clamp having a clamp part formed so that three types of tubes with different diameters can be mounted, the clamp part is formed upright at the base part provided in the horizontal direction and at both ends of the base part. Concave surface formed on the basis of a U-shaped frame portion formed of a vertical wall portion provided on the base portion and provided at a central portion of the base portion and formed by a part of an arc Formed in the center of the U-shaped frame portion and offset by a predetermined amount above the center point of the circle of the arc that forms the receiving portion. Cantilever-shaped first holding arms provided radially from the upper end portions of the two vertical wall portions toward the virtual center point, and the two vertical walls of the first holding arm in the same manner as the first holding arm. Top of section A cantilever-shaped second holding arm that is provided radially from the base to the virtual center point and is formed shorter than the first holding arm, and halfway between the two vertical wall portions To the central portion of the U-shaped frame portion and extending obliquely downward, and the respective tip portions are the tip portions of the first holding arms and the virtual center. A tube clamp comprising: two cantilever-shaped third holding arms formed so as to be located inside a circumferential line of a circle formed from a point as a base point.   In a tube clamp having a clamp part formed so that three types of tubes with different diameters can be mounted, the clamp part is formed upright at the base part provided in the horizontal direction and at both ends of the base part. Concave surface formed on the basis of a U-shaped frame portion formed of a vertical wall portion provided on the base portion and provided at a central portion of the base portion and formed by a part of an arc -Shaped receiving portion, a cantilever-shaped first holding arm provided so as to be obliquely downward and bilaterally symmetric from the upper end portions of the two vertical wall portions, and the first holding Like the first holding arm, the arm is provided in the same direction as the first holding arm and in a bilaterally symmetric manner from the base of the upper ends of the vertical wall portions of the arms. And above A cantilever-shaped second holding arm formed shorter than the first holding arm, and extending from the middle of the vertical wall portions toward the center of the U-shaped frame portion and obliquely downward. Cantilever-shaped, each of which is formed, and each tip portion is provided at the lower portion thereof corresponding to each tip portion of the first holding arm and is formed to be symmetrical A tube clamp characterized by comprising a third holding arm.   3. The tube clamp according to claim 1, wherein each of the third holding arms is formed with a part of an arc at a tip portion thereof, and has a concave surface toward the upper side. A tube clamp having a structure in which a shoe portion formed so as to have a predetermined arc length is provided.   3. The tube clamp according to claim 1, wherein a concave surface is formed in a downward direction at each distal end portion of the first holding arm and the second holding arm, and is predetermined. A tube clamp characterized by comprising a tube retaining function portion formed so as to have a circular arc length and a symmetrical shape.

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