JP6238925B2 - Clamp - Google Patents

Description

  The present invention relates to a clamp for connecting an article to a support member.

Conventionally, clamps used for infusion stands are known. For example, as shown in FIG. 15, the clamp disclosed in Patent Document 1 includes a cylindrical column (support member) 91 extending in the vertical direction, a leg 92 positioned below the column 91, and a column 91. An infusion stand comprising an upper pipe (article) 93 disposed at the upper end, a clamp 95 that connects the upper pipe 93 to the support column 91, and an arm 96 that is positioned at the upper end of the upper pipe 93 and suspends an unillustrated infusion bag or the like. 90 is known.

Clamp 95, as shown in FIG. 16, contact with the outer peripheral surface of the cylindrical post 91, a cylindrical portion 97 having a threaded hole 97a, a screw 98 to put the tip into the screw hole 97a, the base end of the screw 98 And a handle 99 attached thereto. A through hole 91 a that penetrates the tip end of the screw 98 is disposed on the upper portion of the support column 91. With the tip end of the screw 98 inserted in the screw hole 97 a, the handle 99 is rotated and the tip end of the screw 98 is placed. The upper pipe 93 is connected to the support column 91 by bringing the outer pipe into contact with the outer peripheral surface of the upper pipe 93.

JP-A-1-284251

However, the clamp 95, the tip of the screw 98, for pressing the outer peripheral surface of the upper pipe 93, should the cylindrical portion 97 contacts the outer peripheral surface of the post 91, a pipe having a particular diameter There was a problem that can only be attached to.

  An object of the present invention is to provide a clamp that is an improvement of a conventional clamp and that can attach articles of various sizes.

  The present invention relates to a clamp for connecting an article to a support member.

The clamp according to the present invention is capable of reciprocating linear motion that is connected to the handle and moves toward and away from the second side wall, a main body having a first side wall and a second side wall, a handle attached to the first side wall, and the handle. A movable part, a space part for inserting the article formed between the second side wall and the movable part, and a first guide for the movable part to reciprocate linearly with respect to the second side wall possess a part, the handle is attached to the first side wall pivotably manner about an axis, a cam mechanism is interposed between said movable portion handle, said cam mechanism includes a cam surface And a pin that engages with the second recess to convert a rotational movement of the handle in the circumferential direction with respect to the shaft into a reciprocating linear motion .

  According to one or more embodiments of the present invention, a body having a first side wall and a second side wall, a handle attached to the first side wall, and connected to the handle to approach the second side wall and A movable part capable of reciprocating linear movement, a space part for inserting an article formed between the second side wall and the movable part, and a second part for reciprocating linear movement of the movable part relative to the second side wall. 1 guide part. Therefore, since the movable portion can be reciprocated linearly with respect to the article, articles of various sizes can be connected to the support member.

The front view of the drip stage which has a clamp concerning the present invention. The perspective view of the clamp of 1st Embodiment. The exploded perspective view of a clamp. The front view of a guidance formation board. The perspective view of a guide formation board. Explanatory drawing which shows a 1st guide part. Explanatory drawing which shows a cam mechanism. The perspective view of a cover. Sectional drawing in the arrow IX-IX of FIG. (A) The front view which shows the state which made the front-end | tip part of a handle approach the space part of a main body, pressed a movable part against a pipe, and moved the movable part to the contact position. (B) Sectional drawing of the state. (A) The front view which shows the state which the 2nd connection pin contacted the 2nd flat surface part. (B) Sectional drawing of the state. (A) The front view which shows the state which pinched the pipe by the movable part and the 2nd side wall part by turning a handle | steering wheel and pressing a movable part against a pipe with the restoring force of a coil spring. (B) Sectional drawing of the state. Sectional drawing of the handle | steering_wheel which the clamp of 2nd Embodiment has. (A) In the state which moved the movable part of the clamp of 3rd Embodiment to the non-contact position which does not contact a pipe, it is the same as that of Fig.10 (a) which shows the cam surface and 2nd connection pin of a 2nd guide formation board. Sectional drawing. (B) The second guide forming plate in a state where the pipe is held between the movable part and the second side wall by pressing the movable part against the pipe by the restoring force of the coil spring by the clamp, and the state where the pipe is held is maintained. Sectional drawing similar to Fig.10 (a) which shows the cam surface and 2nd connection pin of FIG. The front view of the conventional infusion stage. Sectional drawing of the clamp with which the conventional infusion stage is provided.

  The following embodiments relate to the clamp shown in FIGS. 1-14 and include not only the indispensable structure of the invention but also the selective and preferred structures.

  Referring to FIG. 1, a clamp 10 according to a first embodiment of the present invention is used for, for example, an infusion stand 11 or the like, and the infusion stand 11 and the clamp 10 have a transverse direction X and a longitudinal direction intersecting each other. It has a direction Y and a thickness direction Z.

  The drip stand 11 has a support member 12 and a leg portion 13 attached to the lower part of the support member 12. The support member 12 includes, for example, a support column 14, a mounting plate 15 attached to the upper end of the support column 14, and an electronic computer 16 disposed on the mounting plate 15.

  The clamp 10 is attached to both sides of the electronic computer 16 via, for example, a bracket (not shown), and connects the pipe (article) 17 for hanging the drip bag to the support member 12 in the drip stand 11.

  2 and 3, the clamp 10 is made of metal, synthetic resin, or the like. For example, in the thickness direction Z, the first side wall portion (first side wall) 21 and the second side wall portion facing each other. The second side wall 22 is connected to the main body 20 having the (second side wall) 22, the handle 70 attached to the first side wall 21 so as to be pivotable about the shaft 71 x, and the distal end 72 of the handle 70. A movable portion 53 capable of reciprocating linear movement approaching and leaving, a space portion 87 for inserting the pipe 17 formed between the second side wall portion 22 and the movable portion 53, and the movable portion 53 as the second side wall. And a first guide portion 58 (see FIG. 6) for reciprocating linear movement with respect to the portion 22.

  The main body 20 has a connecting portion 23 that connects the first side wall portion 21 and the second side wall portion 22 and has a U-shape. The 1st side wall part 21 and the 2nd side wall part 22 have a substantially rectangular parallelepiped shape. The first side wall portion 21 is disposed between the substrate portion 24, the cover 60 that covers the surface of the substrate portion 24 that faces the second side wall portion 22, and the substrate portion 24 and the cover 60. The second guide forming plate 40 that forms the first recess 57 and the second recess 68 of the second guide portion 69 is provided. The board | substrate part 24 has a rectangle, and has the inner surface which opposes the 2nd side wall part 22, and the outer surface on the opposite side. A pair of first guide forming portions 26 that form the first guide portions 58 are arranged on the inner surface side of the substrate portion 24. The first guide forming portions 26 are arranged so as to have a gap in the horizontal direction X, whereby the first slots 28 extending in the vertical direction Y are arranged between the first guide forming portions 26. The first slot 28 extends in the thickness direction Z in the first guide forming portion 26, but is not formed in the substrate portion 24 as shown in FIG. 2. The substrate portion 24 and the first guide forming portion 26 have a through hole 27 penetrating in the thickness direction Z and a through hole 29 disposed at a corner of the substrate portion 24 and the first guide forming portion 26 at the center thereof. On the other hand, the first slot 28 is disposed only in the first guide forming portion 26, and the first slot 28 is not formed in the substrate portion 24. As shown in FIG. The slot 28 is prevented from being exposed. In the bush 25, the cylindrical portion 73 of the handle 70 is located on the inner side of the inner peripheral surface 25a in the radial direction, and the cylindrical portion 73 of the handle 70 is formed in the thickness direction Z by the bush 25 so that the base plate portion 24 and the first guide are formed. The part 26 is penetrated.

  Referring to FIGS. 4 and 5, the second guide forming plate 40 has a flat outer surface facing the substrate portion 24, while an inner surface facing the second side wall portion 22 has a shaft 71x. A pair of arc-shaped portions 41 extending along the circumferential direction and projecting toward the second side wall portion 22 side, a flat surface portion 42 disposed on the radially outer side of the shaft 71x with respect to the arc-shaped portion 41, and a pair of arc-shaped portions 41 and a second slot 43 disposed between them. As shown in FIG. 6, the second slot 43 of the second guide forming plate 40 is continuous with the first slot 28 in the first guide forming portion 26 in the thickness direction Z, whereby the first recess 57 is formed. The first guide for guiding the movement of the second connecting pin (pin) 89 in the thickness direction (the direction in which the movable portion 53 reciprocates linearly) Z is caused by the first recess 57 and the second connecting pin 89. A portion 58 is formed. In FIG. 6, the outline shape of the first recess 57 is indicated by a bold line in order to emphasize the first recess 57. The substrate portion 24 is located at one end of the first recess 57 in the thickness direction Z, and the first protrusion 65 of the cover 60 is located at the other end.

  Referring to FIGS. 4 and 5 again, the corner portion of the flat surface portion 42 of the second guide forming plate 40 has a through hole 44 through which the tip of the screw 55 passes. On the inner side in the radial direction of the arc-shaped portion 41 in the second guide forming plate 40, a gap portion 45 into which the distal end portion 72 of the handle 70 can be inserted and removed is arranged.

  Each arcuate portion 41 is adjacent to the first flat surface portion 46 disposed adjacent to the second slot 43, the first inclined surface portion 47 disposed adjacent to the first flat surface portion 46, and the first inclined surface portion 47. A second flat surface portion 48 disposed so as to be adjacent to the second inclined surface portion 49 disposed adjacent to the second flat surface portion 48, and a third flat surface portion (contact portion) disposed adjacent to the second inclined surface portion 49. ) 50 and a wall portion 51 arranged so as to be adjacent to the third flat surface portion 50. The contour shape on the outer side in the radial direction with respect to the axis 71x of the arc-shaped portion 41 has an oval shape.

  The cam surface which the 2nd connecting pin 89 contacts with the 1st flat surface part 46 in the arc-shaped part 41, the 1st inclined surface part 47, the 2nd flat surface part 48, the 2nd inclined surface part 49, and the 3rd flat surface part 50. A cam 52 including 52a is formed.

  The flat surface portions 46, 48, 50 are arranged so as to be orthogonal to the axis 71x. The first inclined surface portion 47 is inclined from the first flat surface portion 46 toward the second flat surface portion 48 so as to be gradually separated from the flat surface portion 42. The second inclined surface portion 49 is inclined so as to gradually approach the flat surface portion 42 from the second flat surface portion 48 toward the third flat surface portion 50. As shown in FIG. 7, in the thickness direction Z, the length dimension L1 of the first inclined surface part 47 with respect to the second flat surface part 48 is larger than the length dimension L2 of the second inclined surface part 49 with respect to the second flat surface part 48. .

  In the second guide forming plate 40 of the clamp 10 according to this embodiment, the second slot 43 is arranged in the 12 o'clock direction and the 6 o'clock direction with respect to the shaft 71x as shown in FIG. The third flat surface portion 50 is arranged in the 3 o'clock direction and the 9 o'clock direction of the timepiece with respect to the shaft 71x.

  As shown in FIG. 8, the cover 60 includes a rectangular bottom portion 61 and three side portions 62 that protrude from the peripheral edge of the bottom portion 61 toward the substrate portion 24. In the center of the bottom 61, an oval through-hole 63 is provided. The bottom portion 61 of the cover 60 is located on the substrate portion 24 side and has a concave portion 64 that accommodates the arc-shaped portion 41. As shown in FIG. 6, the pair of first protrusions that are located on the substrate portion 24 side of the recess 64 so as to face the pair of second slots 43 of the second guide forming plate 40 and protrude toward the substrate portion 24 side. 7 and a pair of second projecting portions 66 that are located to face the third flat surface portion 50 of the second guide forming plate 40 and project to the substrate portion 24 side, as shown in FIG. Yes. Screw holes 67 that engage with the screws 55 are arranged at the four corners of the bottom 61 of the cover 60. Then, the second guide forming plate 40 is disposed between the substrate portion 24 and the cover 60, and the tips of the screws 55 are passed through the through holes 29 of the substrate portion 24 and the first guide forming portion 26 to form the second guide formation. The second guide forming plate 40 and the cover 60 are attached to the substrate portion 24 by passing through the through hole 44 of the plate 40 and entering the screw hole 67 of the cover 60 and engaging the screw 55 and the screw hole 67.

  Between the second guide forming plate 40 and the cover 60, as shown in FIG. 7, the first flat surface portion 46, the first inclined surface portion 47, the second flat surface portion 48 of the second guide forming plate 40, A groove-shaped second concave portion that guides the movement of the second connecting pin 89 by the second inclined surface portion 49, the third flat surface portion (contact portion) 50, and the first projecting portion 65 and the second projecting portion 66 of the cover 60. 68 is formed. The second concave portion 68 includes a cam surface 52 a, and a second guide portion (cam mechanism) 69 is formed by the second concave portion 68 and the second connecting pin 89 engaged with the second concave portion 68. As will be described later, the second guide portion 69 converts the rotational movement (turning of the handle 70) in the circumferential direction with respect to the shaft 71x of the handle 70 into reciprocating linear movement in the thickness direction Z of the handle 70. In FIG. 7, the outline shape of the second recess 68 is indicated by a thick line in order to emphasize the second recess 68.

  In the circumferential direction of the shaft 71x, the second recessed portion 68 has one end portion where the end portion 51a of the wall portion 51 adjacent to the second slot 43 is positioned (see FIG. 4), and the other end portion is a third flat portion. The edge part 51b of the wall part 51 adjacent to the surface part 50 is located (refer FIG.4 and FIG.7). As shown in FIG. 6, the first recess 57 and the second recess 68 are continuous at the end 51 a of the wall 51 adjacent to the second slot 43.

  As shown in FIGS. 3 and 9, the handle 70 is connected to the movable portion 53 on the distal end portion 72 side, and the pipe 17 is sandwiched between the movable portion 53 and the second side wall portion 22 (FIG. 12B). (See FIG. 9), a stopper member 80 is provided for restricting the movable portion 53 from moving to the non-contact position (see FIG. 9) without turning the handle 70. The movable portion 53 has a through-hole 54 that penetrates in the thickness direction Z, and the distal end portion 81 of the stopper member 80 has a through-hole 82 that penetrates the stopper member 80 in the radial direction of the shaft 71x. The stopper member 80 and the movable portion 53 are connected to the shaft 71x by the first connecting pin 88 that is passed through the through hole 82 of the stopper member 80 in a state where the tip portion 81 of the stopper member 80 is passed through the through hole 54 of the portion 53. It is connected so that it can turn in the circumferential direction.

  The proximal end portion 83 of the stopper member 80 and the distal end portion 72 of the handle 70 have holes 75 and 84 that pass through them in the radial direction of the shaft 71x, respectively, and a second connecting pin ( The stopper member 80 and the handle 70 are connected by a pin 89. When connecting these by the 2nd connection pin 89, the 2nd connection pin 89 inserts the connection pin 89 through the through-hole 31 of the connection part 23, for example. The hole 84 provided in the stopper member 80 is formed so as to extend in the thickness direction Z, and the second connecting pin 89 is allowed to move in the thickness direction Z inside the hole 84 of the stopper member 80. .

  The stopper member 80 has an oval stopper body 85 at the center in the thickness direction Z. In a state where the longitudinal direction of the stopper main body 85 coincides with the longitudinal direction of the through hole 63 of the cover 60, the movable portion 53 is allowed to be separated from the second side wall portion 22, while the longitudinal direction of the through hole 63 of the cover 60 is allowed. In a state in which they do not coincide with each other, the movable portion 53 is restricted from moving away from the second side wall portion 22.

  The handle 70 has a gripping portion 74 and a cylindrical portion 73, and is integrally formed. In addition, a coil spring 56 that urges the second connecting pin 89 and the gripping portion 74 to separate in the thickness direction Z is disposed inside the cylindrical portion 73 of the handle 70.

  The coil spring 56 has a length dimension L0 (natural length) in the thickness direction Z when no force is applied. However, when the coil spring 56 is disposed on the cylindrical portion 73 of the handle 70, the length in the thickness direction Z is long. The length dimension is shorter than the natural length L0 by a predetermined dimension.

  As shown in FIG. 2, the movable portion 53 and the second side wall portion 22 in the clamp 10 form a pair of sandwiching portions 19 that sandwich a pipe (rod-like body) 17 extending in one direction which is the longitudinal direction Y. When the handle 70 is pushed or pulled so that the distal end portion 72 of the handle 70 moves forward and backward with respect to the space portion 87 of the main body 20, the second connecting pin 89 is inserted into the first recess 57 formed by the slots 28 and 43. Guided (back and forth), and in the thickness direction Z, the movable portion 53 reciprocates linearly. During the reciprocating linear movement of the movable portion 53 in the thickness direction Z, the second connecting pin 89 is guided by the first recess 57, so that the handle 70 does not substantially turn in the circumferential direction of the shaft 71x. In addition, the coil spring 56 does not substantially contract in the thickness direction Z from the state in which the coil spring 56 is disposed inside the cylindrical portion 73 until the movable portion 53 reaches from the non-contact position to the contact position.

  The movable part 53 moves the tip part 72 of the handle 70 forward and backward to the space part 87 of the main body 20 to move away from the second side wall part 22 so as not to contact the pipe 17 (see FIG. 9) and the second side wall. A reciprocating linear motion can be made between the contact position (see FIG. 10B) approaching the portion 22 and contacting the pipe 17.

  The opposing surfaces of the movable portion 53 and the second side wall portion 22 include, in the center in the vertical direction Y, concave portions 22a and 53a that are recessed away from each other and inclined surface portions 22b and 53b that are adjacent to the concave portions 22a and 53a in the vertical direction Y. It has (refer FIG.2 and FIG.3). In a state where the movable portion 53 is arranged at the contact position, a part of the inclined surface portions 22b and 53b abuts on the outer peripheral surface of the pipe 17 (see FIG. 10B).

  Referring to FIG. 9, in a state where the movable portion 53 is arranged at the non-contact position, as shown in FIG. 6, both end portions of the second connecting pin 89 abut on the substrate portion 24 in the first guide portion 58. In this state, when the distal end portion 72 of the handle 70 enters the space portion 87 of the main body 20 and the movable portion 53 is disposed at the contact position as shown in FIGS. As shown, the second connecting pin 89 abuts on the first protrusion 65 of the cover 60.

  In this state, when the operator turns the handle 70 against the force of the coil spring 56, both end portions of the second connecting pin 89 come into contact with the first flat surface portion 46 on the cam surface 52a, and then the first inclination. The first inclined surface portion 47 is raised while being in contact with the surface portion 47, and is in contact with the second flat surface portion 48, resulting in a state as shown in FIGS. In this process, the stopper member 80 also turns with respect to the main body 20 as the handle 70 turns, and the longitudinal direction of the stopper main body 85 and the longitudinal direction of the through hole 63 of the cover 60 become inconsistent. In Z, the movable portion 53 is restricted by the stopper body 85 from moving toward the non-contact position. On the other hand, in the above process, the distal end portion 72 of the handle 70 enters the space portion 87 of the main body 20, whereby the coil spring 56 is compressed in the thickness direction Z. In the state shown in FIGS. 11A and 11B, both end portions of the second connecting pin 89 are in contact with the second flat surface portion 48, and even if the turning of the handle 70 is continued, the distal end portion 72 of the handle 70 is not moved. It does not enter the space 87 of the main body 20. Thereafter, the turning of the handle 70 is further continued. In FIG. 7, when both end portions of the second connecting pin 89 exceed the second flat surface portion 48, the second connecting surface is connected to the second inclined surface portion 49 by the restoring force of the coil spring 56. By lowering the second inclined surface portion 49 while both ends of the pin 89 are in contact with each other, the distal end portion 72 of the handle 70 is retracted from the space portion 87 of the main body 20 and the handle 70 is turned in one direction with respect to the shaft 71x. continue. Thereafter, the end 51b of the wall 51 and the second projecting portion 66 of the cover 60 are brought into contact with each other, so that the movement of the second connecting pin 89 and the turning of the handle 70 with respect to the shaft 71x are stopped. ) As shown in FIG. As shown in FIG. 7, the clamp 10 has a thickness dimension L1 of the first inclined surface portion 47 in the thickness direction Z (direction in which the distal end portion 72 of the handle 70 advances and retreats with respect to the space portion 87 of the main body 20). Since the length L2 of the second inclined surface portion 49 in the direction Z is larger than the length L2, the thickness direction Z of the coil spring 56 in a state where the handle 70 is arranged so that the gripping portion 74 extends in the direction of 3 o'clock and 9 o'clock of the watch. The length dimension L4 (see FIGS. 12A and 12B) is the thickness direction Z of the coil spring 56 in a state where the handle 70 is disposed so that the gripping portion 74 extends in the direction of 6 o'clock and 12 o'clock. Is shorter than the length dimension L3 (see FIGS. 10A and 10B). Therefore, when the state shown in FIG. 10B is compared with the state shown in FIG. 12B, the coil spring 56 is compressed in the thickness direction Z in the state shown in FIG. Therefore, the restoring force of the coil spring 56 acts in a direction extending in the thickness direction Z. Therefore, by pressing the movable part 53 against the pipe 17 by the restoring force of the coil spring 56, the pipe 17 can be held by the movable part 53 and the second side wall part 22, and the state where the pipe 17 is held can be maintained.

  In the state shown in FIG. 12, since the longitudinal direction of the stopper member 80 and the longitudinal direction of the through hole 63 of the cover 60 do not coincide with each other, the movable portion 53 is restricted from moving away from the second side wall portion 22. From this state, if the handle is turned in a direction opposite to the turning direction of the handle 70 described above, and then the handle is pulled so that the movable portion 53 is separated from the second side wall portion 22, FIG. 10 (a) (b) Thus, the movable portion 53 is returned to the contact position shown in FIG. 3 and the restoring force of the coil spring 56 does not act on the movable portion 53, the pipe 17 and the second side wall portion 22, and the pipe 17 can be removed from the clamp 10.

  According to the clamp 10 according to the present invention, the main body 20 having the first side wall portion 21 and the second side wall portion 22, the handle 70 attached to the first side wall portion 21, and the second side wall portion connected to the handle 70. A movable portion 53 capable of reciprocating linear movement approaching and leaving 22, a space portion 87 for inserting the pipe 17 formed between the second side wall portion 22 and the movable portion 53, and the movable portion 53 are second. A first guide part 58 for reciprocating linear movement with respect to the side wall part 22. Therefore, since the movable part 53 can be reciprocated linearly with respect to the pipe 17, various pipes (pipes having various sizes) 17 having different diameters can be connected to the support member 12.

  In addition, when the handle 70 is turned in a state where the movable portion 53 has moved to the contact position, the distal end portion 72 of the handle 70 enters the space portion 87 of the main body 20 and elastically deforms the coil spring 56, thereby elastically deforming. By pressing the movable portion 53 against the pipe 17 by the restoring force of the coil spring 56, the pipe 17 can be held by the movable portion 53 and the second side wall portion 22, and the state where the pipe 17 is held can be maintained. In the conventional clamp 95 shown in FIGS. 15 and 16, the upper pipe 93 cannot be connected to the support column 91 unless the handle 99 is operated many times. However, according to the clamp 10 according to the present invention, If the handle 70 is turned 90 degrees, the pipe 17 can be connected to the support member 12.

  Furthermore, since the handle 70 has a cylindrical portion 73 and the coil spring 56 is disposed inside the cylindrical portion 73, the clamp 10 can be reduced in size.

  In addition, the cam surface 52a includes a first flat surface portion 46, a first inclined surface portion 47, a second flat surface portion 48, a second inclined surface portion 49, and a third flat surface portion 50 that are point-symmetric with respect to the axis 71x. Therefore, both end portions of the second connecting pin 89 can be brought into contact with the cam surface 52a. Therefore, it is possible to prevent the force from concentrating on one end portion in the length direction of the second connecting pin 89, to prevent the second connecting pin 89 from breaking, and to the shaft 70x of the handle 70. Circumferential turning can be made smooth.

  When the difference between the length dimension L1 of the first inclined surface portion 47 and the length dimension L2 of the second inclined surface portion 49 in the thickness direction Z is increased with reference to the clamp 10 in the present embodiment, the restoring force of the coil spring 56 is increased. On the other hand, if the difference is reduced, the restoring force of the coil spring 56 can be reduced.

[Second Embodiment]
A handle 70 of a second embodiment of the clamp 10 according to the present invention is shown in FIG. In the handle 70, a gripping portion 74 and a cylindrical portion 73 are formed separately, and the gripping portion 74 and the cylindrical portion 73 are connected by a third connecting pin 76.

[Third Embodiment]
The 2nd guide formation board 40 in 3rd Embodiment of the clamp 10 which concerns on this invention is shown to Fig.14 (a) (b). In the clamp 10 according to the first embodiment, the second connection pin 89a is in contact with the cam surface 52a at both ends in the radial direction of the shaft 71x. However, in the clamp 10 according to the third embodiment, the second connection pin 89a is in contact with the cam surface 52a. The pin 89a contacts the cam surface 52b at one end in the radial direction of the shaft 71x. The cam surface 52b has a first flat surface portion 46, a first inclined surface portion 47, a second flat surface portion 48, a second inclined surface portion 49, and a third flat surface portion 50, and these are circumferential directions of the shaft 71x. Are arranged sequentially along the circumferential direction with respect to the axis 71x and between the second slot 43 and the end portion 51b of the wall portion 51.

  In the clamp 10, the turning angle θ of the handle 70 is 330 degrees, and the handle 70 is turned 330 degrees around the shaft 71 x in a state where the movable portion 53 in the non-contact position is moved to the contact position. By pressing the movable portion 53 against the pipe by the restoring force of the coil spring 56 that has been elastically deformed, the pipe 17 can be held between the movable portion 53 and the second side wall portion 22 and the state where the pipe 17 is held can be maintained. The turning angle θ of the handle 70 can be changed by changing the length dimension of the cam surface 52b with respect to the shaft 71x. When the second connecting pin 89a contacts the cam surface 52a at one end in the radial direction of the shaft 71x, the turning angle of the handle 70 is preferably 30 to 330 degrees.

  In addition, although the example which uses the pipe 17 as an example of an article | item was shown in the said embodiment, the article | item used for this invention is not restricted to this. For example, the article is not limited to a cylindrical pipe, and may be a quadrangular cylindrical pipe or a polygonal pipe. Moreover, it is not restricted to a cylindrical shape, A cylindrical round bar may be sufficient, and a square or polygonal columnar shape may be sufficient. Of course, the article is not limited to the bar-shaped article extending in one direction, and the article may have another shape.

  Moreover, although the example which makes the movable part 53 and the 2nd side wall part 22 and the pipe 17 contact directly was shown in the said embodiment, this invention is not limited to this. For example, if an unillustrated elastic member formed of thermoplastic resin or rubber is disposed on the opposing surfaces of the movable portion 53 and the second side wall portion 22, the sliding between the pipe 17, the movable portion 53, and the second side wall portion 22 will occur. By increasing the friction coefficient, the holding force of the movable portion 53 and the second side wall portion 22 with respect to the pipe 17 can be improved.

  Moreover, although the main body 20 in the said embodiment was provided with the 1st side wall part 21, the 2nd side wall part 22, and the connection part 23, and showed the example formed integrally, the clamp 10 which concerns on this invention is shown. However, the present invention is not limited thereto, and the first side wall portion 21 and the second side wall portion 22 in the main body 20 may be formed separately.

  Furthermore, although the clamp 10 in the said embodiment showed the example which formed the main body 20 and the 2nd guide formation board 40 containing the cam 52 as a different body, this invention is not limited to this, The main body 20 and The second guide forming plate 40 including the cam 52 may be integrally formed.

  Furthermore, the arc-shaped portion 41 of the second guide forming plate 40 in the above-described embodiment is configured to arrange the first flat surface portion 46 so as to be adjacent to the second slot 43 and to smoothly move the second connecting pin 89. Although described, the clamp according to the present invention is not limited to this, and the first inclined surface portion 47 may be disposed adjacent to the second slot 43 without disposing the first flat surface portion 46.

  In the clamp 10 according to the above-described embodiment, if the handle 70 is turned 90 degrees from the state where the pipe 17 is not sandwiched between the movable portion 53 and the second side wall portion 22, the pipe 17 can be moved by the restoring force of the coil spring 56. However, the clamp according to the present invention is not limited to this, and by appropriately changing the length dimension of the cam surface 52a in the circumferential direction of the shaft 71x. The turning angle of the handle 70 can be changed. In the clamp 10 according to the present invention, it is preferable that the pipe 17 is sandwiched between the movable portion 53 and the second side wall portion 22 by a single turning operation of the handle 70 without the operator holding the grip portion 74. The turning angle of the handle 70 is preferably 30 to 150 degrees.

  Furthermore, although the clamp 10 in the above-described embodiment has been described using the coil spring 56, other springs may be used.

The disclosure relating to the present invention described above can be organized into at least the following matters.
The present invention relates to a clamp for connecting an article to a support member, a main body having a first side wall and a second side wall, a handle attached to the first side wall, and a handle connected to the handle to the second side wall. A movable part capable of reciprocating linear movement approaching and leaving, a space part for inserting the article formed between the second side wall and the movable part, and the movable part with respect to the second side wall A first guide part for reciprocating linear movement, the handle is attached to the first side wall in a manner capable of turning about an axis, and a cam mechanism is interposed between the movable part and the handle The cam mechanism is formed by a second recess having a cam surface and a pin engaged with the second recess, and converts the rotational movement of the handle in the circumferential direction with respect to the shaft into a reciprocating linear motion. It is characterized by a certain .

The present invention disclosed above can include at least the following embodiments. The embodiments can be adopted separately or in combination with each other.
(1) The first guide portion is formed of a first recess that extends in a direction in which the movable portion reciprocates linearly and a pin that engages with the first recess.
( 2 ) The first concave portion and the second concave portion are continuous, and the pin of the first guide portion and the pin of the cam mechanism are common.
( 3 ) A spring that can be elastically deformed by turning the handle, wherein the movable portion reciprocates linearly between a non-contact position that is not in contact with the article and a contact position that is in contact with the article. When the handle is turned in a state where the handle is moved to the contact position, the distal end portion of the handle enters the space portion of the main body to elastically deform the spring, and the elastically deformed restoring force of the spring By pressing the movable part against the article, the article is sandwiched by the movable part and the second side wall, and the state in which the article is sandwiched is maintained.
( 4 ) The pin contacts the cam surface at both ends in the radial direction of the shaft, and rotates the handle by 30 to 150 degrees to sandwich the article by the movable portion and the second side wall.
( 5 ) The pin contacts the cam surface at one end in the radial direction of the shaft, and the handle is pivoted by 30 to 330 degrees to sandwich the article by the movable part and the second side wall.
(6) in a state where the sandwich the article by the movable portion and the second side wall, a stopper portion to which the movable portion is prevented from separating from the second side wall, is disposed on the distal end of the handle.
( 7 ) The handle has a cylindrical portion, and the spring is disposed inside the cylindrical portion.
(8) the pin is for connecting said distal portion of said handle, and said stopper portion.
( 9 ) The cam surface includes a first inclined surface portion that contacts the pin when the spring is compressed as the handle rotates, from the state where the movable portion is disposed at the contact position, and the first inclined surface. A flat surface portion adjacent to the surface portion, a second inclined surface portion pressed against the pin by a force of restoring the spring compressed adjacent to the flat surface portion, the movable portion adjacent to the second inclined surface portion, and A contact portion that contacts the pin in a state where the article is sandwiched by the second side wall.
( 10 ) A pair of the cam surfaces are arranged so that the first inclined surface portion, the flat surface portion, the second inclined surface portion, and the contact portion are point-symmetric with respect to the axis.
( 11 ) In the direction in which the movable part reciprocates linearly, a length dimension of the first inclined surface part is larger than a length dimension of the second inclined surface part.

  In the specification and claims of this invention, the terms “first” and “second” are used merely to distinguish between like-named elements, positions, and the like.

10 Clamp 12 Support member 17 Pipe (article)
20 Main body 21 First side wall (first side wall)
22 2nd side wall part (2nd side wall)
47 first inclined surface portion 48 second flat surface portion (flat surface portion)
49 2nd inclined surface part 50 3rd flat surface part (contact part)
52 Cam 52a Cam surface 53 Movable part 56 Coil spring (spring)
57 1st recessed part 58 1st guide part 68 2nd recessed part 69 2nd guide part (cam mechanism)
70 handle 71x shaft 72 tip 73 cylinder 80 stopper member (stopper)
87 Space part 89 2nd connection pin (pin)
L1 Length dimension of the first inclined surface portion in the thickness direction L2 Length dimension of the second inclined surface portion in the thickness direction L3 In FIG. 10, the handle is arranged so that the gripping portion extends in the direction of 6 o'clock and 12 o'clock of the watch The length dimension L4 in the thickness direction of the coil spring in the state in which the coil spring 56 is in length. In FIG. 12, the length dimension Z in the thickness direction of the coil spring 56 in a state where the handle is disposed so Thickness direction (direction in which the tip of the handle moves forward and backward relative to the space of the main unit)

Claims (12)

In a clamp for connecting an article to a support member,
A main body having a first side wall and a second side wall; a handle attached to the first side wall; a movable part connected to the handle and capable of reciprocating linear movement toward and away from the second side wall; possess a first guide portion for reciprocal linear motion is formed the article and space for inserting, with respect to the movable portion is the second sidewall between the sidewall and the movable portion,
The handle is attached to the first side wall in a manner capable of turning about an axis,
A cam mechanism is interposed between the movable part and the handle,
The cam mechanism is formed of a second recess having a cam surface and a pin engaged with the second recess, and converts the rotational movement of the handle in the circumferential direction with respect to the shaft into a reciprocating linear motion. the characteristics and to torque lamp.   2. The clamp according to claim 1, wherein the first guide portion is formed of a first recess extending in a direction in which the movable portion reciprocates linearly and a pin engaged with the first recess. The first recess and the second recess are continuous,
The clamp according to claim 2, wherein the pin of the first guide portion and the pin of the cam mechanism are common. A spring that can be elastically deformed by turning the handle;
The movable part reciprocates linearly between a non-contact position that is not in contact with the article and a contact position that is in contact with the article;
When the handle is turned in a state in which the movable portion is moved to the contact position, the tip of the handle enters the space portion of the main body to elastically deform the spring, and the elastically deformed spring by the restoring force of the movable portion with sandwiching the article by the movable portion and the second side wall by pressing in said article, to any one of claims 1 to 3 to maintain a state of sandwiching the article Clamp described. The pin contacts the cam surface at both ends of the shaft in the radial direction;
The clamp according to claim 2 or 3 , wherein the article is clamped by the movable part and the second side wall by turning the handle by 30 to 150 degrees. The pin contacts the cam surface at one end in the radial direction of the shaft;
The clamp according to claim 2 or 3 , wherein the article is clamped by the movable part and the second side wall by turning the handle by 30 to 330 degrees. The stopper part which prevents that the said movable part leaves | separates from the said 2nd side wall in the state which clamped the said article | item by the said movable part and the said 2nd side wall is arrange | positioned at the said front-end | tip part of the said handle | steering-wheel . 6. The clamp according to any one of 6 . The handle has a cylindrical portion;
The clamp according to claim 4, wherein the spring is disposed inside the cylindrical portion. Said pins, clamp according to claim 7 and wherein the distal portion of the handle is intended to connect the said stopper portion. The cam surface is adjacent to the first inclined surface portion and the first inclined surface portion to which the pin contacts when the spring is compressed as the handle is turned from the state where the movable portion is disposed at the contact position. A flat surface portion, a second inclined surface portion pressed against the pin by a force of restoring the spring compressed adjacent to the flat surface portion, and the movable portion and the second adjacent to the second inclined surface portion. The clamp according to claim 4 , further comprising: a contact portion that contacts the pin in a state where the article is sandwiched by the side wall. The cam surface includes a first inclined surface portion, said flat surface portion, and the second inclined surface portion, said contact portion, to claim 10 which are a pair arranged so as to be symmetrical with respect to said axis Clamp described. The clamp according to claim 10 or 11 , wherein a length dimension of the first inclined surface part is larger than a length dimension of the second inclined surface part in a direction in which the movable part reciprocates linearly.

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