Clamp hanger

Abstract

The objective is to provide a clamp hanger that can securely fix the clamp hanger to the erection bar, and a clamp hanger that can securely and easily perform double lanyard mounting. [Solution] A clamp hanger comprising a hanger body and a slide body, wherein the hanger body has a clamp opening, a slide rail portion that supports the slide body so as to be able to move forward and backward toward the clamp opening, and an engagement groove into which the slide body can be engaged at a predetermined position, the slide body has a fixing bolt that is screwed in so as to be able to move forward and backward toward the clamp opening, and a claw-shaped portion that can engage with the engagement groove, the engagement groove is formed in an inclined shape such that its depth increases as it moves toward the retraction direction of the slide body, and the slide rail portion has a locking portion formed near the end of the slide body on the side of the slide body that moves toward the clamp opening, preventing the slide body from moving toward the clamp opening, and the slide body has a locking projection that can engage with the locking portion.

Description

Technical Field

[0005] , ,

[0004] ,

[0001] The present invention relates to a clamp hanger.

Background Art

[0002] Conventionally, clamp hangers for suspending and supporting various devices such as lighting fixtures like spotlights and audio devices like speakers have been known. A clamp hanger with various devices attached is fixed to the installation bar by hanging the clamp opening of the clamp main body on the installation bar, fixing a slide body to the clamp main body, and tightening the fixing bolt of the slide body. (Patent Document 1)

Prior Art Documents

Patent Documents

[0003] <00所00017>

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Conventional clamp hangers fix the clamp main body and the slide member by engaging triangular teeth formed on each of the clamp main body and the slide member with each other. In this fixing means using triangular teeth, even when the triangular teeth do not fully engage with each other (lightly engaged state), the slide body is fixed to the slide main body. In this state, when force or impact is applied to various devices or the clamp hanger itself, the engagement between the triangular teeth may loosen or disengage, resulting in insufficient fixing of the clamp hanger to the installation bar (round pipe) in some cases.

[0005] Also, there is an attachment method called "nijimekake" in which two clamp hangers are simultaneously hung on the installation bar. In this case, one clamp hanger is supported with the right hand and the other with the left hand. For this purpose, the handle of the fixing bolt of the clamp hanger is gripped with one hand. The sliding body is supported by the main body of the slide so as to be able to slide freely, and the triangular teeth are not engaged. Therefore, when using a double lanyard, the sliding body may move towards the clamp opening of the main body of the slide, causing the clamp opening to close and making it impossible to attach to the erection bar. Furthermore, conventional fixing bolts have threads along their entire length, excluding the handle. When using a double-pronged grip, if the user grips the handle but also the threaded portion of the fixing bolt, this thread can dig into the fingers, causing pain. Conversely, gripping the threaded portion causes pain, making it difficult to grip a clamp hanger with a heavy device attached using only the small handle with one hand.

[0006] Therefore, the object of the present invention is to provide a clamp hanger that can securely fix the clamp hanger to the erection bar, and a clamp hanger that can securely and easily perform double lanyard mounting. [Means for solving the problem]

[0007] To solve these problems, the present invention has the following configuration. It consists of a hanger body and a sliding mechanism. The hanger body has a clamp opening, a slide rail portion that supports the slide body so as to be able to move back and forth toward the clamp opening, and an engagement groove that can engage the slide body in a predetermined position. The sliding body has a fixing bolt that is screwed in so as to be able to move back and forth toward the clamp opening, and a claw-shaped portion that can engage with the engagement groove, The clamp hanger is characterized in that the engagement groove is formed in a sloping shape such that its depth increases as it moves toward the retraction direction of the slide body. Furthermore, it has the following configuration: It consists of a hanger body and a sliding mechanism. The hanger body has a clamp opening and a slide rail portion that supports the slide body so that it can move back and forth toward the clamp opening. The sliding body has a fixing bolt that is screwed in so as to be able to move back and forth toward the clamp opening, The slide rail portion has a locking portion formed near the end of the slide body on the side that moves away from the clamp opening, which prevents the slide body from moving in the direction of advancement toward the clamp opening. A clamp hanger characterized in that the sliding body has a locking projection that can be locked into the locking portion. Furthermore, it has the following configuration: It consists of a hanger body and a sliding mechanism. The hanger body has a clamp opening and a slide rail portion that supports the slide body so that it can move back and forth toward the clamp opening. The sliding body has a fixing bolt that is screwed in so as to be able to move back and forth toward the clamp opening, The clamp hanger is characterized in that the fixing bolt has a threaded portion formed only on a portion of the fixing bolt from the end of the clamp opening. [Effects of the Invention]

[0008] We can provide a clamp hanger that can securely fix the clamp hanger to the erection bar, and a clamp hanger that allows for secure and easy double-lanyard mounting. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view of a clamp hanger A according to an embodiment of the present invention. [Figure 2] This is a front view of clamp hanger A according to an embodiment of the present invention. [Figure 3] This is a perspective view of the hanger body 1 according to an embodiment of the present invention. [Figure 4] This is a front view of the hanger body 1 according to an embodiment of the present invention. [Figure 5] This is a perspective view of the slide body 2 of an embodiment of the present invention. [Figure 6] This figure shows a slide body 2 of an embodiment of the present invention. [Figure 7]Cross-sectional view of the clamp hanger A according to an embodiment of the present invention. [Figure 8] Front view of the clamp hanger A according to an embodiment of the present invention in a state fixed to the erection bar B. [Figure 9] Front view (partial cross-sectional view) of the clamp hanger A when it is double-hooked according to an embodiment of the present invention. [Figure 10] Front view (partial cross-sectional view) of the clamp hanger A according to Modification 1 of the present invention. [Figure 11] Front view (partial cross-sectional view) of the clamp hanger A according to Modification 2 of the present invention.

Mode for Carrying Out the Invention

[0010] [Embodiment] Hereinafter, a clamp hanger A, which is an embodiment according to the present invention, will be described with reference to the drawings. In the following description, the same reference numerals in different figures indicate parts having the same function, and duplicate descriptions in each figure will be omitted as appropriate. Also, for the sake of convenience of explanation, terms indicating the directions of up and down are used, but in the state where the clamp hanger A is hung on the erection bar B, the direction in which gravity acts is downward, and the opposite is upward.

[0011] [Overall Configuration] FIG. 1 is a perspective view of the clamp hanger A according to an embodiment of the present invention, showing a state where the slide body 2 is fixed to the engagement groove 122 on the side of the clamp opening 1a. FIG. 2 is a view showing the clamp hanger A according to an embodiment of the present invention, showing a state where the slide body 2 is fixed to the engagement groove 122 on the side opposite to the clamp opening 1a. FIG. 3 is a perspective view of the hanger body 1 according to an embodiment of the present invention. FIG. 4 is a front view of the hanger body 1 according to an embodiment of the present invention. FIG. 5 is a perspective view of the slide body 2 according to an embodiment of the present invention. FIG. 6 is a front view of the slide body 2 according to an embodiment of the present invention, (a) is a front view, (b) is a right side view, and (c) is a cross-sectional view taken along line A-A of (b). As shown in Figure 1 and other figures, the clamp hanger A in this embodiment comprises a hanger body 1 and a sliding body 2.

[0012] [Hanger body] The hanger body 1 integrally includes a hook portion 11 that forms the clamp opening 1a, a slide rail portion 12 that slidably supports the slide body 2, and a fixture suspension portion 13 for suspending various fixtures (not shown) such as lighting fixtures and sound equipment.

[0013] The hook portion 11 is the part that hooks onto the erection bar B (round pipe), and as shown in Figure 2, etc., it is formed in a roughly U-shape when viewed from the front, forming a clamp opening 1a that opens on the slide rail portion 12 side. The tip portion 111 of the hook portion 11 abuts against the upper side of the erection bar B, and the middle portion 112 abuts against the side of the erection bar B, so that the clamp hanger A is hooked onto the erection bar B and fixed in place. The hook portion 11 is integrated with the slide rail portion 12 at the base portion 113. Multiple anti-slip protrusions 11a are provided on the inner circumferential surfaces of the tip portion 111 and the intermediate portion 112, respectively. The tips of the protrusions 11a have flat portions 11a1 formed thereon, which are pressed against the outer circumference of the erection bar B when the erection bar B is fixed in place. In this embodiment, the protrusions 11a are formed in a roughly triangular tooth shape when viewed from the front, but any other shape is acceptable as long as it functions as an anti-slip shape. The clamp opening 1a is an opening through which the erection bar B is inserted, and it is positioned to be approximately opposite to the sliding direction S of the sliding body 2.

[0014] The slide rail portion 12 extends from the base portion 113 of the hook portion 11 in the sliding direction S of the slide body 2. The upper surface 12a of the slide rail portion 12 (the mounting surface of the slide body 2) is formed to be parallel to the sliding direction S. The slide rail section 12 has a guide groove 121 and an engagement groove 122 formed therein. Guide grooves 121 are formed on both sides of the slide rail portion 12, and the guide projections 212a (details to be described later) of the slide body 2 engage with them from both sides to guide the sliding movement of the slide body 2. The guide groove 121 is positioned in the extending direction of the slide rail portion 12, and its upper surface 121a is formed substantially parallel to the sliding direction S. The upper surface 121a primarily guides the sliding movement of the slide body 2. On the lower surface of the guide groove 121 on the side where the slide body 2 is retracted from the clamp opening 1a (down and right in Figure 1, etc.: hereinafter simply referred to as the retraction direction), a locking portion 121b is formed, extending in the direction where the slide body 2 is advanced into the clamp opening 1a (up and left in Figure 1, etc.: hereinafter simply referred to as the advancement direction). The locking portion 121b engages the locking projection 214 of the slide body 2 (details will be described later) when the clamp hanger A is double-mounted. The locking portion 121b is formed such that the angle between the extension direction of the locking portion 121b and the extension direction of the upper surface 121a of the guide groove 121, i.e., the angle between the extension direction of the locking portion 121b and the sliding direction S, is 31.5°. When the clamp hanger A is attached to the erection bar B, the locking portion 121b is in an almost horizontal position. In addition, the tip of the locking portion 121b is shaped to be slightly inclined upward (towards the guide groove 121).

[0015] The engagement groove 122 is formed on the upper surface 12a of the slide rail portion 12, and the claw-shaped portion 213 of the slide body 2 engages with it to restrict the movement of the slide body 2 in the sliding direction. The engagement groove 122 is formed in an inclined shape such that its depth increases as it moves toward the retraction direction of the slide body 2. In this embodiment, the angle between the inclined surface 122a on the extension direction side of the engagement groove 122 and the sliding direction S is 30°, and the angle between the inclined surface 122b on the retraction direction side and the sliding direction S is 60°. Furthermore, the angle between the inclined surface 122b on the retraction direction side and the direction parallel to the device insertion hole 131 is 5°. (The rightmost leader line in the central enlarged view of Figure 4 is the direction parallel to the device insertion hole 131, and is approximately the vertical direction when the clamp hanger A is hung on the erection bar B.) By forming these angles, the claw-shaped portion 213 can be reliably engaged with the engagement groove 122, and the engagement can be easily released. Note that these angles are not limited to the above values, and any angle within a predetermined range including before and after the above values ​​is acceptable.

[0016] The fixture suspension portion 13 is integrally projected downward (opposite direction from the clamp opening 1a) from the lower side of the slide rail portion 12. The fixture insertion hole 131 is formed to open downward parallel to the projection direction of the fixture suspension portion 13, and various fixtures inserted into the fixture insertion hole 131 are secured by tightening bolts 132.

[0017] [Slide type] The slide body 2 comprises a slide portion 21, a bolt support portion 22 integrated with the slide portion 21, and a fixing bolt 23 (see Figure 2). The sliding portion 21 has a sliding portion body 211, a guide portion 212, a claw-shaped portion 213, and a locking projection 214. The slide section body 211 has two guide sections 212 protruding from one end. The guide sections 212 are arranged facing each other across a space, and guide projections 212a are formed on the tip side of the guide sections 212, facing each other and protruding inward so as to engage with the guide groove 121 of the slide rail section 12 from both outer sides. The upper surface of the guide projections 212a, that is, the surface on the upper surface 121a side of the guide groove 121, is formed to be parallel to the sliding direction S.

[0018] The claw-shaped portion 213 is formed on the slide body 211 at a position sandwiched between the two guide portions 212 (on the lower surface of the slide body 211). The claw-shaped portion 213 is shaped to protrude significantly downward as it moves from the extension direction to the retraction direction. The claw-shaped portion 213 is shaped to be substantially the same as the engagement groove 122 in a front view, so as to engage with the engagement groove 122. The extension side surface 213a of the claw-shaped portion 213 is substantially flat, and the angle between the extension side surface 213a and the lower surface of the slide body 211 (slide direction S) is 28.8°. The retraction side surface 213b of the claw-shaped portion 213 is also substantially flat, and the angle between the retraction side surface 213b and the lower surface of the slide body 211 (slide direction S) is 60°. The locking projection 214 is the part of the guide projection 212a that is formed to protrude in the direction of advancement, and its tip is shaped to be slightly inclined upward (towards the slide body 211) so as to engage with the tip of the locking portion 121b. When double-mounted, it is locked to the locking portion 121b, preventing the slide body 2 from moving in the direction of advancement.

[0019] The bolt support portion 22 is integrally formed on the upper part (opposite side from the guide portion 212) of the slide portion 21, and is provided with a screw hole 221 into which the fixing bolt 23 is screwed. The screw hole 221 is formed at an angle such that the direction of advancement is upward (away from the slide portion 21) from the sliding direction S. The fixing bolt 23 has a contact portion 231 attached to the end on the clamp opening 1a side and a handle 232 attached to the opposite end. The contact portion 231 contacts the outer circumference of the erection bar B when the fixing bolt 23 is tightened, and is rotatably attached to the tip of the fixing bolt 23 around the axis of the fixing bolt 23. (See Figure 8) The fixing bolt 23 moves forward and backward along the screw hole 221 by rotating the handle 232. By extending the fixing bolt 23, the erection bar B is fixed inside the clamp opening 1a, and by retracting it, the erection bar B can be released from the clamp opening 1a.

[0020] [Move the sliding object] As described above, the sliding body 2 slides along the sliding rail portion 12 of the hanger body 1. The two guide portions 212 of the slide portion 21 of the slide body 2 are placed on the slide rail portion 12 so as to straddle the upper surface 12a, and the guide projections 212a at the lower ends of the two guide portions 212 engage with the guide groove 121 from both sides. When attaching the slide body 2 to the hanger body 1, the hanger body 1 and the slide body 2 are fitted together from the retraction direction end of the slide rail portion 12 so that the guide projections 212a engage with the guide groove 121, and the slide body 2 is slid in the advance direction to attach it. In this way, the slide body 2 is mounted to move back and forth along the guide groove 121.

[0021] [Sliding mechanism locking / releasing] Figure 7 is a cross-sectional view of a clamp hanger A according to an embodiment of the present invention, showing the claw-shaped portion 213 engaged with the engagement groove 122 on the opposite side of the clamp opening 1a (the furthest from the clamp opening 1a). As described above, three engagement grooves 122 are formed on the upper surface 12a of the slide rail portion 12. In this embodiment, the three engagement grooves 122 are formed at equal intervals. This is because the three engagement grooves 122 are formed to correspond to the diameters of common pipes used in stages and studios, which are Φ=34mm, Φ=42.7mm, and Φ=48.6mm. Furthermore, a claw-shaped portion 213 is formed on the lower surface of the guide portion 212 of the slide body 2.

[0022] When fixing the position of the slide body 2, the claw-shaped portion 213 is moved slightly in the advance direction from the position of the engagement groove 122 to be fixed, and then the slide body 2 is moved in the retraction direction while the claw-shaped portion 213 is engaged with the engagement groove 122. As described above, the angle between the inclined surface 122a on the advancing direction side of the engagement groove 122 and the sliding direction S is 30°, and the angle between the inclined surface 122b on the retracting direction side and the sliding direction S is 60°. In contrast, the angle between the advancing side surface 213a of the claw-shaped portion 213 and the sliding direction S is 28.8°, and the angle between the retracting side surface 213b and the sliding direction S is 60°. This allows the claw-shaped portion 213 to engage with the engagement groove 122 with some clearance, and facilitates engagement between the claw-shaped portion 213 and the engagement groove 122. Conversely, when releasing the slide body 2 from the engaged position, the claw-shaped portion 213 is released from engagement with the engagement groove 122 while moving the slide body 2 in the advance direction.

[0023] As described above, the sliding body 2 is fixed to the sliding rail portion 12 by engaging the claw-shaped portion 213, which is also inclined in the retraction direction, with the engaging groove 122, which is inclined in the retraction direction. Therefore, even if a reaction force is applied to the sliding body 2 from the force used to fix the mounting bar B to the clamp opening 1a of the clamp hanger A, the engagement between the engaging groove 122 and the claw-shaped portion 213 will not easily disengage or shift, and the sliding body 2 can be securely fixed to the sliding rail portion 12.

[0024] In this embodiment, the three engagement grooves 122 are arranged at equal intervals, but it is not necessary to arrange them at equal intervals. For example, the three engagement grooves 122 can be arranged at different intervals to be optimally positioned for each of the three pipe diameters. Furthermore, in this embodiment, one claw-shaped portion 213 is formed on the slide body 2, but it is also possible to form two claw-shaped portions 213. In this case, the three engagement grooves 122 will be arranged at equal intervals, the same interval as the interval between the two claw-shaped portions 213. Moreover, it is also possible to form four or more engagement grooves 122, or three or more claw-shaped portions 213. Furthermore, the shape of the engagement groove 122 and the claw-shaped portion 213 is not limited to the shape shown in the embodiment. Any other shape is acceptable as long as the engagement groove 122 and the claw-shaped portion 213 do not easily disengage or shift even when a reaction force is applied to the slide body 2 from the force used to fix the erection bar B to the clamp opening 1a of the clamp hanger A.

[0025] [Securing to and removing from erection bar B] Figure 8 is a front view of a clamp hanger A according to an embodiment of the present invention, showing the clamp hanger A fixed to the erection bar B. The clamp hanger A is fixed to the erection bar B as follows: Move the slide body 2 in the retraction direction, insert the erection bar B through the clamp opening 1a, and hook the hook portion 11 onto the erection bar B. At this time, positioning the fixing bolt 23 to the furthest retraction side makes it easier to insert the erection bar B through the clamp opening 1a. Also, support the slide body 2 by hand on the retraction side of the slide rail portion 12 so that it does not come off the hanger body 1. In the case of an erection bar B with a small diameter, it is also possible to engage the claw-shaped portion 213 of the slide body 2 with the engagement groove 122 that is furthest retraction side (furthest from the clamp opening 1a). To fix the sliding body 2 in a position corresponding to the diameter of the erection bar B, the claw-shaped portion 213 is engaged with the engagement groove 122 corresponding to the diameter of the erection bar B. The handle 232 of the fixing bolt 23 is rotated to move the fixing bolt 23 in the advance direction, pressing the contact portion 231 against the outer surface of the erection bar B, thereby fixing the erection bar B inside the clamp opening 1a.

[0026] Conversely, the removal of clamp hanger A from the erection bar B is performed as follows. By rotating the handle 232 of the fixing bolt 23, the fixing bolt 23 is moved in the retraction direction, the contact portion 231 is separated from the outer surface of the erection bar B, and the erection bar B is released within the clamp opening 1a. At this time, if the fixing bolt 23 is positioned as far back as possible, it will be easier to remove the erection bar B from the clamp opening 1a later. To release the claw-shaped portion 213 from the engagement groove 122 of the erection bar B, the slide body 2 is moved in the advance direction. Then, the slide body 2 is moved in the retraction direction to remove the hook portion 11 from the erection bar B. At this time, the slide body 2 is supported by hand on the retraction side of the slide rail portion 12 so as not to come off the hanger body 1. In the case of an erection bar B with a small diameter, it is also possible to keep the claw-shaped portion 213 of the slide body 2 engaged with the engagement groove 122 on the most retracted side.

[0027] As described above, in this embodiment, when fixing the erection bar B, the clamp hanger A is fixed on the slide rail portion 12 with the slide body 2 engaged with the engagement groove 122 which is in the optimal position according to the diameter of the erection bar B, and then the fixing bolt 23 is rotated. This reduces the amount of rotation of the fixing bolt 23, making it easy and efficient to fix the clamp hanger A and the erection bar B.

[0028] [Nichōkake] Figure 9 is a front view (partially a cross-sectional view) of clamp hanger A according to an embodiment of the present invention, showing the state when two hangers are attached. When using a double-hanging method, where two clamp hangers are simultaneously attached to the erection bar, one clamp hanger A is gripped by grasping the handle 232 of the fixing bolt 23 with one hand. At this time, a force acts on the hanger body 1 in a downward sliding direction relative to the gripped slide body 2, causing the slide body 2 to move in the forward direction. To prevent the movement of the sliding body 2, the locking projection 214 of the sliding body 2 is locked to the locking portion 121b of the sliding rail portion 12, and the handle 232 is gripped. At this time, the upper surface 212a1 of the guide projection 212a on the retraction direction side contacts the upper surface 121a of the guide groove 121, and the lower surface 211a of the slide body 211 contacts the upper surface 12a of the slide rail 12, so that the slide body 211 and the guide body 212 sandwich the slide rail 12 from above and below, thereby supporting the hanger body 1 on the slide body 2. The lower surface 211a of the slide body 211 on the extension direction side is formed at a 30° angle upward with respect to the slide direction S, and the upper surface 212a1 of the guide projection 212a on the retraction direction side is formed at a 30° angle downward with respect to the slide direction S (see Figure 6(c)). As a result, when the slide body 2 is double-mounted, it is tilted by approximately 30° compared to the slide body 2 in normal conditions such as when sliding, with the extension direction side facing downward, making it easier to grip with the handle 232.

[0029] [Example 1] Figure 10 is a front view (partially a cross-sectional view) of clamp hanger A, which is a modified example 1 of the present invention. The embodiment differs in that the fixing bolt 23 is different. As described above, in the clamp hanger A of the embodiment, when fixing the erection bar B, the slide body 2 is fixed on the slide rail portion 12 in a state where it is engaged with the engagement groove 122 which is in the optimal position according to the diameter of the erection bar B. Therefore, the amount of rotation of the fixing bolt 23, that is, the amount of movement in the sliding direction S, is small, and thus a short screw length is sufficient. However, the total length of the fixing bolt 23 must be longer than a predetermined length so that the handle 232 does not come into contact with the end of the slide rail section 12 when the erection bar B is fastened with the fixing bolt 23 with the slide body 2 fixed to its furthest forward position. Therefore, the required length of the fixing bolt 23 becomes longer than the required length of the screw, and the retracted screw on the fixing bolt 23, as shown in Figure 8, is unnecessary for fixing the clamp hanger A and the erection bar B. However, if the fixing bolt 23 is too long, it may come into contact with various devices suspended and supported by the clamp hanger A, so there is an upper limit to the length of the fixing bolt 23. Furthermore, as mentioned above, when using a double grip, the grip is held by the handle 232, but the retracted threaded portion of the fixing bolt 23 is also gripped, causing the threaded portion to dig into the fingers, resulting in the inconvenience of the gripper experiencing pain. Therefore, in this modified example 1, the fixing bolt 23 is provided with two regions: a threaded portion 23a with a predetermined length of threads on the extending side, and a non-threaded portion 23b with the remaining length on the retracting side. This makes it easier to grip the handle 232 when using a double clamp. In other words, the non-threaded portion 23b can be gripped along with the handle 232, making it easier to grip the clamp hanger A when using a double clamp. The length of the threaded portion 23a is preferably about 30-70%, more preferably about 40-60%, of the total length (overall length) of the fixing bolt 23.

[0030] [Differentiation 2] Figure 11 is a front view (partially a cross-sectional view) of clamp hanger A, which is a modified example 2 of the present invention. This modification differs from Modification 1 in that the non-threaded portion 23b is different. In the modified example 1, the non-threaded portion 23b is simply the part that does not have threads, and when using two hooks, the non-threaded portion 23b can be gripped together with the handle 232, but because the non-threaded portion 23b is thin, it remains difficult to grip. Therefore, in this modified example 2, a handle extension 2321 is provided on the retracted side of the fixing bolt 23. The handle extension 2321 is formed in a cylindrical shape that covers the non-threaded portion 23b. The handle extension 2321 may be integrated with the handle 232 or it may be a separate part. The diameter of the handle extension 2321 must be such that when the sliding body 2 is fixed to its furthest extended position and the erection bar B is fastened with the fixing bolt 23, the handle extension 2321 does not come into contact with the sliding rail portion 12. The bolt portion to which the handle extension 2321 is attached may be a non-threaded portion 23b without threads, or a threaded portion 23a with threads.

[0031] As described above, the clamp hanger A according to the present invention and its modifications have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments and modifications, and any design changes, etc., that do not depart from the gist of the present invention are also included. Furthermore, the embodiments and modifications can be combined by utilizing each other's technologies, as long as there are no particular contradictions or problems in their purpose and configuration. [Explanation of symbols]

[0032] A Clamp Hanger B Erection bar 1. Hanger body 1a Clamp opening 11 Hook part 11a protrusion 11a1 Flat area 111 Tip 112 Middle section 113 Base 12 Slide rail section 12a Top side 121 Guide groove 121a Top side 121b Locking part 122 Engagement groove 122a Slope 122b Slope 13 Equipment hanging section 131 Instrument insertion hole 132 volts 2 slides 21 Slide section 211 Slide Unit 211a Bottom side 212 Guide Section 212a Guide projection 212a1 top surface 213 Claw-shaped part 213a Advancement aspect 213b Evacuation side 214 Locking protrusion 22 Bolt support section 23 Fixing bolts 23a Threaded part 23b Non-threaded portion 221 screw holes 231 Contact part 232 Handle 2321 Handle extension S Slide direction

Claims

1. It consists of a hanger body and a sliding mechanism. The hanger body has a clamp opening, a slide rail portion that supports the slide body so as to be able to move back and forth toward the clamp opening, and an engagement groove that can engage the slide body in a predetermined position. The sliding body has a fixing bolt that is screwed in so as to be able to move back and forth toward the clamp opening, and a claw-shaped portion that can engage with the engagement groove, The clamp hanger is characterized in that the engagement groove is formed in a sloping shape such that its depth increases as it moves toward the retraction direction of the slide body.

2. The clamp hanger according to claim 1, characterized in that a plurality of engagement grooves are formed in the direction of advancement and retraction of the slide body.

3. The clamp hanger according to claim 2, characterized in that the plurality of engagement grooves are formed at equal intervals.

4. The slide rail portion has a locking portion formed near the retracted end of the slide body to prevent movement of the slide body in the advance direction. The clamp hanger according to claim 1, characterized in that the sliding body has a locking projection that can be locked to the locking portion.

5. The clamp hanger according to any one of claims 1 to 4, characterized in that the fixing bolt has a threaded portion formed only on a part of the fixing bolt from the end on the clamp opening side.

6. The clamp hanger according to claim 5, characterized in that the threaded portion is formed only in a portion of the fixing bolt that is 30 to 70% of its total length.

7. It consists of a hanger body and a sliding mechanism. The hanger body has a clamp opening and a slide rail portion that supports the slide body so that it can move back and forth toward the clamp opening. The sliding body has a fixing bolt that is screwed in so as to be able to move back and forth toward the clamp opening, The slide rail portion has a locking portion formed near the end of the slide body on the side that moves away from the clamp opening, which prevents the slide body from moving in the direction of advancement toward the clamp opening. A clamp hanger characterized in that the sliding body has a locking projection that can be locked into the locking portion.

8. The clamp hanger according to claim 7, characterized in that the fixing bolt has a threaded portion formed only on a part of the fixing bolt from the end on the clamp opening side.

9. The clamp hanger according to claim 8, characterized in that the threaded portion is formed only in a portion of the fixing bolt that is 30 to 70% of its total length.

10. It consists of a hanger body and a sliding mechanism. The hanger body has a clamp opening and a slide rail portion that supports the slide body so that it can move back and forth toward the clamp opening. The sliding body has a fixing bolt that is screwed in so as to be able to move back and forth toward the clamp opening, The clamp hanger is characterized in that the fixing bolt has a threaded portion formed only on a portion of the fixing bolt from the end of the clamp opening.

11. The clamp hanger according to claim 10, characterized in that the threaded portion is formed only in a portion of the fixing bolt that is 30 to 70% of its total length.

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