Safety device connector

Abstract

Unintentional disconnection of the connected state by a connector for safety device connection is prevented.　A connector for safety device connection of an embodiment comprises a frame that is formed in an open curve shape so that the ends face each other, and has an opening for inserting a connection portion of the safety device; and a gate that is provided to close the opening and is configured to be supported on one end of the frame, to close the opening when in contact with the other end, and to open the opening when the contact with the other end is released. The frame has a spine on the opposite side of the opening, and of the frame portions continuous with the end portions of the spine, the first portion continuous with the end portion of the frame on the gate support side is formed with a small curvature to hang a line-shaped or strip-shaped body. The second portion of the frame portions that is located on the opposite side of the first portion and is continuous with the end portion of the spine on the opening side is formed with a large curvature so as to suppress the movement of a shaft member.

Description

[Technical field]

[0001] The present invention relates to a connector for connecting a safety device. [Background technology]

[0002] A connector for connecting a safety device is a connecting member that can be opened and closed like a carabiner, allowing other members to be attached to it. One example is a carabiner. These are used as connecting parts for lifelines used in working at heights. Other examples include climbing equipment (ropes, etc.) or as objects to which ropes for loading and unloading work can be slinged.

[0003] As described above, connectors are used for a variety of purposes. The connectors are configured according to the purpose.

[0004] For example, a connector generally has a frame with a C-shaped opening. A gate (opening / closing member) base end is connected to one end of the opening of the connector frame. The gate rotates at its tip end around the base end. The gate is configured to switch between a closed state and an open state by rotating. However, depending on the item connected to the connector, there are cases where it is required to be easily detached and cases where it is required not to be easily detached. In this manner, in a conventional configuration in which the open / closed state of the connector is changed by changing the position of the gate tip relative to the frame, an elastic body is provided on the gate. The elastic body biases the gate toward the inside of the frame. In order for the user to open the gate, the user needs to rotate the gate against this biasing force. A connector formed with a guide portion has been proposed for such a connector (see Patent Document 1 below). The guide portion is a portion that is extended by bending the gate toward the inside of the frame. In other words, this gate is extended by a predetermined length compared to the conventional gate. The user can open the gate by hooking a part of the item to be connected to the extension part at the tip of the gate. In other words, the user can open the gate with one action. This connector prioritizes ease of opening over keeping the gate closed. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 10-220456 Summary of the Invention [Problem to be solved by the invention]

[0006] Connectors for connecting safety devices must be designed to prevent accidental release of the connection. Simply providing a locking mechanism for the rotation of the gate may not be enough. For example, connectors may connect a lifeline to a physical restraint device. Specific examples include connecting a lanyard to a full harness, a rescue rope to a rescue harness, or a climbing rope to a climbing harness. If these connections are suddenly released, it may cause an accident.

[0007] Both the connecting part on the lifeline side and the connecting part on the physical restraint side move relative to each other due to the movement of the wearer and various other factors. The connector is pulled toward the lifeline on one hand and toward the physical restraint on the other hand, so it is required to have tensile strength to prevent damage. In addition, due to the structure of the connector, the tensile strength and durability differ depending on the pulling direction. Therefore, if a tensile load is applied in a direction in which the strength of the connector is difficult to ensure, the connector itself may be damaged. In addition, the connecting part on the lifeline side or the connecting part on the physical restraint side may be a flat fiber member or a strip-shaped body. In that case, each end of the connecting part in the width direction may fray or tear due to friction, etc. In other words, even if the connector itself does not break, the connected state may be released due to damage to the side to be connected by the connector.

[0008] The present invention has been made in view of the above-mentioned problems, and has an object to prevent a situation in which the connected state by a safety device connecting connector is unintentionally released. [Means for solving the problem]

[0009] The connector for connecting a safety device according to an embodiment includes a frame having an opening formed in an open curve with its ends facing each other, for inserting a connecting part of a safety device between the ends, and a gate provided to close the opening and supported by one end of the frame, for closing the opening when in contact with the other end and for opening the opening when the contact with the other end is released. The frame has a spine on the opposite side to the opening, and of each frame portion continuous with each end of the spine, a first portion continuous with the end of the frame on the gate support part side is formed with a small curvature so that a straight or band-shaped body can be hung thereon. The second portion of each frame portion, which is located opposite to the first portion and continues to the end of the spine on the opening side, is formed with a large curvature so as to suppress the movement of the annular member made of the shaft member. The frame may also include a protrusion that protrudes at least toward the inside of the frame to narrow a part of the area between the opening side and the spine side opposite the opening, and the protrusion is provided on the lower side of the spine when one end side of the frame is the lower side and the other end side of the frame is the upper side, and is formed integrally with the frame. The gate may be rotatably supported at one end of the frame, and may be configured such that when the gate is rotated from a closed state around the one end, it is released from abutment with the other end and is opened. The protrusion may be formed to protrude not only inwardly of the frame but also in a lateral direction. The inclination angle of the lower side of the inclined surface connecting the inward protruding end and the base end of the protruding portion may be 50° or more. The inclination angle of the upper side of the inclined surface connecting the inward protruding end and the base end of the protruding portion may be 40° or less. In addition, the gate may be configured so that when the gate rotates to be farthest from one end of the frame, the extension direction of the gate is inclined by 10° or more with respect to a first direction corresponding to the direction of the spine of the frame and a second direction connecting the one end and the other end.In another embodiment, the connector for connecting a safety device includes a frame having an opening formed in an open curve with ends facing each other, for receiving a connecting part of a safety device between the ends, and a gate provided to close the opening and supported by one end of the frame, for closing the opening when in contact with the other end and for opening the opening when the contact with the other end is released. The frame has a spine on the opposite side to the opening, and among each frame part connected to each end of the spine, a first part connected to the end of the frame on the gate support part side, and a second part connecting the side of the spine opposite to the first part side and a nose that is a part that contacts the tip of the gate, and when the gate rotates and its tip is farthest from the one end of the frame, the extension direction of the gate is inclined by 10° or more with respect to the plane in which the first direction from the spine toward the gate and the second direction connecting the one end and the other end are viewed. The first portion may have a small curvature so that a straight or band-shaped body can be hung thereon, and the second portion may be located on the opposite side of the first portion among the frame portions, and may have a large curvature so as to suppress movement of the annular member made of the shaft member. The frame may also have a protruding portion that protrudes at least toward the inside of the frame to partially narrow the area between the opening side and the spine side opposite the opening, and the protruding portion is provided on the lower side or near one end of the spine when one end side of the frame is downward and the other end side of the frame is upward, and is formed integrally with the frame. Effect of the Invention

[0010] According to the embodiment, the curvature is small on the lower side corresponding to the gate support part of the frame so that a straight or band-shaped body can be hung, and the curvature is large on the opposite side so that the movement of the annular member made of the shaft member is suppressed. Therefore, it is possible to prevent the band-shaped body from deteriorating due to friction on the lower side while suppressing the movement of the annular member hung on the upper side, so that it is possible to prevent a tensile load from being applied in a direction that makes the connector easily damaged. As a result, it is possible to prevent a situation in which the connection state by the safety device connection connector is unintentionally released. [Brief description of the drawings]

[0011] [Figure 1] FIG. 2 is a schematic front view showing the safety device connecting connector of the first embodiment. [Diagram 2] FIG. 2 is a schematic rear view showing the safety device connecting connector of the first embodiment. [Diagram 3] FIG. 2 is a schematic right side view showing the safety device connecting connector of the first embodiment. [Figure 4] FIG. 2 is a schematic left side view showing the safety device connecting connector of the first embodiment. [Diagram 5] FIG. 2 is a schematic top view showing the safety device connecting connector of the first embodiment. [Figure 6] FIG. 2 is a schematic bottom view showing the safety device connecting connector of the first embodiment. [Figure 7] FIG. 2 is a schematic perspective view showing an example of a connector for connecting a safety device according to the first embodiment. [Figure 8] 3A and 3B are schematic front views showing the safety device connecting connector of the first embodiment in an open state and a closed state. [Figure 9] 3A and 3B are schematic rear views showing the safety device connecting connector of the first embodiment in an open state and a closed state, respectively. [Figure 10] 1 is a schematic diagram showing a state in which the safety device connecting connector of the first embodiment is used. FIG. [Figure 11] FIG. 11 is a schematic front view showing a safety device connecting connector according to a modified example of the first embodiment. [Figure 12] FIG. 11 is a schematic rear view showing a safety device connecting connector according to a modified example of the first embodiment. [Figure 13] FIG. 11 is a schematic perspective view showing an example of a safety device coupling connector according to a modified example of the first embodiment. [Figure 14] 5A and 5B are schematic front views showing a safety device connecting connector according to a modified example of the first embodiment in an open state and a closed state. [Figure 15A] 5A and 5B are schematic rear views showing a safety device connecting connector according to a modified example of the first embodiment in an open state and a closed state, respectively. [Figure 15B] FIG. 11 is a schematic view showing a state in which a safety device connecting connector according to a modified example of the first embodiment is used. [Figure 16] FIG. 6 is a schematic front view showing a safety device connecting connector according to a second embodiment. [Figure 17] FIG. 11 is a schematic rear view showing the safety device connecting connector of the second embodiment. [Figure 18] FIG. 11 is a schematic right side view showing a safety device connecting connector according to a second embodiment. [Figure 19] FIG. 11 is a schematic left side view showing a safety device connecting connector according to a second embodiment. [Figure 20] FIG. 13 is a schematic top view showing a safety device connecting connector according to a second embodiment. [Figure 21] FIG. 11 is a schematic bottom view showing the safety device connecting connector of the second embodiment. [Figure 22] FIG. 13 is a schematic perspective view showing an engaged state of the safety device connector of the second embodiment. [Diagram 23] 13A and 13B are schematic front views showing a safety device connecting connector of a second embodiment in an open state and a closed state, respectively. [Figure 24] 13A and 13B are schematic rear views showing the safety device connecting connector of the second embodiment in an open state and a closed state, respectively. [Diagram 25] 13A and 13B are schematic right side views showing a safety device coupling connector according to a second embodiment in an open state and a closed state, respectively. [Figure 26] 13A and 13B are schematic left side views showing a connector for connecting a safety device of a second embodiment in an open state and a closed state, respectively. [Figure 27] 13A and 13B are schematic top views showing a safety device connecting connector according to a second embodiment in an open state and a closed state, respectively. [Figure 28] 13A and 13B are schematic bottom views showing a safety device connecting connector according to a second embodiment in an open state and a closed state, respectively. [Figure 29] 13A and 13B are schematic perspective views showing a safety device coupling connector according to a second embodiment in an open state and a closed state, respectively. [Diagram 30] FIG. 11 is a schematic perspective view showing an example of a connector for connecting a safety device according to a third embodiment. [Diagram 31]FIG. 13 is a schematic front view showing a safety device connecting connector according to a fourth embodiment. [Diagram 32] FIG. 13 is a schematic rear view showing the safety device connecting connector of the fourth embodiment. [Diagram 33] FIG. 13 is a schematic right side view showing the safety device connecting connector of the fourth embodiment. [Diagram 34] FIG. 13 is a schematic left side view showing a safety device connecting connector according to a fourth embodiment. [Diagram 35] FIG. 13 is a schematic top view showing a safety device connecting connector according to a fourth embodiment. [Diagram 36] FIG. 13 is a schematic bottom view showing the safety device connecting connector of the fourth embodiment. [Figure 37] FIG. 13 is a schematic perspective view showing a safety device connecting connector according to a fifth embodiment. [Figure 38] FIG. 13 is a schematic front view showing a safety device connecting connector according to a fifth embodiment. [Figure 39] FIG. 13 is a schematic rear view showing the safety device connecting connector of the fifth embodiment. [Diagram 40] FIG. 13 is a schematic right side view showing a safety device connecting connector according to a fifth embodiment. [Diagram 41] FIG. 13 is a schematic left side view showing a safety device connecting connector according to a fifth embodiment. [Diagram 42] FIG. 13 is a schematic top view showing a safety device connecting connector according to a fifth embodiment. [Diagram 43] FIG. 13 is a schematic bottom view showing the safety device connecting connector of the fifth embodiment. [Diagram 44] 13A and 13B are schematic front views showing a safety device connecting connector of a fifth embodiment in an open state and a closed state. [Diagram 45] 13A and 13B are schematic perspective views showing a safety device connecting connector of a fifth embodiment in an open state and a closed state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Safety device connecting connectors according to first to fifth embodiments will be described with reference to Figs. 1 to 45.

[0013] [First embodiment] The overall configuration of a connector 100 for connecting a safety device according to a first embodiment will be described with reference to Figures 1 to 10. Figures 1 to 7 show schematic views of the front, back, right side, left side, top, bottom and perspective view of the connector 100 for connecting a safety device according to the first embodiment.

[0014] In addition, a gap is formed in the frame (body portion) of the connector for connecting a safety device for inserting a flat rope (belt-like member) or the like, and this will be described as an "opening." The side of the frame opposite the opening will be described as the "spine." The side of the frame opposite the opening will be described as the "spine." The opening side and spine side of the frame face each other toward the inside of the frame, and for convenience of description, the direction in which they face is defined as the left-right direction. Following this, the direction that is perpendicular to the left-right direction and passes between the spine and the opening is defined as the up-down direction. Furthermore, the direction perpendicular to both the left-right direction and the up-down direction is defined as the front-rear direction.

[0015] The front surface of the connector 100 for connecting a safety device may be referred to as the "front surface," and the surface opposite the front surface as the "rear surface." However, these directions are set for the convenience of explaining the embodiment, and are not intended to specify the usage state, etc., of the connector 100 for connecting a safety device, and the terms up and down, front and back, left and right, and the front and rear surfaces may be changed as appropriate depending on the usage state.

[0016] A carabiner can be given as an example of an embodiment of the safety device connector 100 of this embodiment. The gate is a component of the safety device connector for switching between a closed state in which the tip side of the gate abuts against one end of the frame opening and a closed state in which the gate is separated from the one end (open state).

[0017] (Overall configuration) As shown in Figs. 1 to 7, the connector 100 for connecting a safety device includes a frame 110 and a gate 120. The frame 110 is formed by forming an axial member (or a rod-shaped member, a column-shaped member, etc.) so that the ends do not come into contact with each other (in an open curved shape) and so as to face an opening. In other words, the ends of the frame 110 are formed to sandwich the opening. Another way to say "facing the opening" is a C-shape. The opening between the one end side and the other end side is spaced at a predetermined interval (see Figs. 8 and 9, opening 114), and the gate 120 is provided in this interval. The gate 120 closes the interval in the frame 110, thereby dividing (dividing) the inside and outside of the connector 100 for connecting a safety device. Although the connector 100 for connecting a safety device shown in Fig. 1 is a convex figure as a whole, the configuration of the connector 100 for connecting a safety device is not limited to this, and may include, for example, a concave portion.

[0018] (Frame 110) Specific examples of the shape of the connector for connecting a safety device are shown in Figs. 1 to 9. However, a shape in which the spine is curved is also included in this embodiment. Also, a connector including a straight portion above the frame (second portion 118 described later) is also included in this embodiment. The connector for connecting a safety device 100 in Figs. 1 to 9 is an example of an embodiment of the present invention, but its shape is specific to this embodiment. It is composed of one side consisting of the spine 112, one side consisting of the first portion 116, and one side consisting of each end of the frame 110 and the gate 120, and has a shape similar to a triangle with curved corners. Note that, although these sides are straight in each drawing, they may be curved as long as the curvature is small.

[0019] In the frame 110 in Fig. 1, the end side supporting the gate 120, i.e., the lower side, is wider (longer in the left-right direction) than the upper side. In other words, the lower side is the gate support side when the major axis of the carabiner is viewed as being roughly in the up-down direction. However, it is desirable that the width be such that the band does not move too much left-right relative to the lower part, based on the width of the band that is likely to be hung on the lower part. The lower side is also formed in a straight line or a curved line with a small curvature.

[0020] The frame 110 also has an upper portion on the end side (nose side) that is in a closed state when it comes into contact with the gate 120. The upper portion is narrow in width so as to limit the movement of an annular member such as a D-ring. "Narrow" means that it is short in length compared to the width or upper portion of a band-shaped body that is likely to be hung on the lower side. A spine 112 is provided between the lower side (116) and upper side (118) of the frame 110, and in the example of each figure, the spine 112 is formed in a straight line.

[0021] In frame 110 in Fig. 1, the lower end of spine 112, which is generally aligned in the vertical direction, curves in a lower right direction. The lower end of spine 112 that curves in the lower right direction then curves in an upper right direction. The end of this upper right curve forms the lower part of frame 110 (first part 116 described below). The lower part of the frame in Fig. 1 is formed in a straight line in the upper right direction. The vertical and left-right directions are as follows:

[0022] That is, whether the spine 112 is straight or includes a curved portion, a first direction (e.g., major axis) connecting one end and the other end of the spine 112 can be defined. The up-down direction in FIG. 1 is expressed along the first direction, and the following explanation follows this (FIGS. 1-3, 7, etc.). FIG. 1 is a viewpoint in which a second direction connecting one end and the other end provided to sandwich an opening of the gate 120 (or the frame 110) and the "up-down direction" are viewed on approximately the same plane (the line of sight direction in FIG. 1 and FIG. 2). The opening is exemplified by the opening 114 in FIG. 8 and FIG. 9. One end is exemplified by the nose 114a in FIG. 8 and FIG. 9. The direction along the plane and perpendicular to the up-down direction is defined as the left-right direction.

[0023] Next, the shape (contour shape) of the cross section perpendicular to the circumferential direction of frame 110, i.e., the axial direction (longitudinal direction and front-rear direction in each drawing), will be described. The outer contour of frame 110 slopes downward from the center toward each end in the width direction of the cross section of frame 110, as shown in Figs. 3 to 7. Such a configuration can be obtained, for example, by compressing each end side in the width direction of frame 110 toward the center in the width direction. This makes the metal structure denser, and improves resistance to tensile loads, impact resistance, and fatigue strength.

[0024] <First Part 116> In addition, in the above plane, if the direction from one end of spine 112 to the other end is defined as the up-down direction, and the direction connecting spine 112 and gate 120 is defined as the left-right direction, first portion 116 will be described in that orientation. First portion 116 is a curved tip portion from the bottom end of spine 112 that spans the up-down direction. First portion 116 is provided so as to span from the bottom end of spine 112 in the left-right direction.

[0025] In the configuration of frame 110 shown in the example of FIG. 1, first portion 116 extends from the lower end of spine 112 toward the upper right. The inclination angle of first portion 116 with respect to spine 112 is approximately 74° to 76° in FIGS. 1 and 2. However, the inclination angle may be any angle within the range of 50° to 130°. From the viewpoint of a balance between the miniaturization of frame 110 and the ease of inserting and removing articles into and from connector 100 for connecting a safety device, the inclination angle is preferably within the range of 60° to 110°.

[0026] The length of the first portion 116 may be determined based on the length of the contact portion between the connector 100 for connecting a safety device and an article that is expected to be hung on the connector 100 for connecting a safety device. The contact portion is the length (width) of the portion where the first portion 116 can come into contact with the article to be used. In FIG. 1, the first portion 116 has a length corresponding to the width of a band (commonly known as a flat rope) of a lanyard, which is a fall arrest device, as an example. Here, the "corresponding length" refers to a length in a range of lengths that is, for example, -20% to +30% of the band width of the band.

[0027] <Second Part 118> In the configuration of the frame 110 in FIG. 1, in which the spine 112 is on the left side and the gate 120 is on the right side, the second portion 118 located on the upper side of the spine 112 is formed in a curved shape (for example, a substantially arc shape) that is convex outward. That is, as shown in FIG. 1, the second portion 118 curves from the upper end of the spine 112 in an upper right direction and then in a lower right direction. If the curvature of the curved surface of the arc-shaped second portion 118 is small, the shaft-shaped member such as a D-ring hanging above the connector 100 for connecting the safety device will rattle (the D-ring will slip). This will also lead to an increase in the size of the connector 100 for connecting the safety device as a whole. The second portion 118 does not have to be substantially arc-shaped. It may also include a straight portion as long as it is not obviously longer than the diameter of the shaft portion of the connection target such as a D-ring.

[0028] The connector 100 for connecting a safety device is formed so that the breaking strength is highest in the axial direction of the spine 112 or in the perpendicular direction (so-called major axis) descending from the second portion 118 to the first portion 116. In other words, the durability of a connector for connecting a safety device such as a carabiner is generally ensured in that direction.

[0029] As an example, take a carabiner used for climbing. The carabiner used as a connector for connecting safety devices in this example has a tensile strength or breaking strength in the vertical direction that is 10 times higher than that in the horizontal direction. In some carabiners, the tensile strength in the horizontal direction is 2KN, while the tensile strength in the vertical direction is 25KN. The difference occurs because the tensile strength in the horizontal direction is low due to the structure of the rotating gate, while the tensile strength of the spine is high.

[0030] However, a belt-like object such as a flat rope is not necessarily retained in a portion of the inside of the connector depending on the usage state, etc. In other words, in a conventional connector for connecting a safety device, the belt-like object may move toward the spine depending on the usage state. In addition, in the example of a carabiner used for a lanyard, the carabiner is used with the assumption that a metal ring (e.g., a D-ring of a full harness) is located on the upper side and a belt-like member is located on the lower side (see Figure 10).

[0031] In this state, the user wearing the full harness is on the D-ring side, and the lifeline is on the belt-like member side (upside down from Figure 1). If the user falls in this situation, the metal ring on the full harness and the belt-like member on the lanyard side will pull on the safety device connector in opposite directions.

[0032] At this time, if the pulling direction is along the top-bottom direction of the connector as shown in Figure 10, the connector will be pulled in the direction that ensures the greatest strength. Therefore, if the connector is configured to have a certain breaking strength, the connector will not break (be damaged). In contrast, when a force acts in the direction in which the connector rotates as described above, the belt-like member tries to move in the direction of the gate or spine. If the belt-like member actually shifts, there is a high risk of the safety device connector breaking. This is because the strength of a connector in the left-right direction is generally significantly lower than in the up-down direction.

[0033] According to the connector 100 for connecting a safety device of this embodiment, the width of the first portion 116 is set to correspond to the width of the belt-shaped member that is likely to be hung thereon. In addition, the shape of the first portion 116 is linear or has a small curvature. Therefore, even if the connector 100 for connecting a safety device rotates, the first portion 116 and the belt-shaped member are in close contact with each other, and are unlikely to move in the left-right direction due to friction or the like. Even if the belt-shaped member tries to move to the spine 112, it can abut against the spine 112 and prevent the movement. In addition, since the second portion 118 side is formed in an arc shape, the metal ring of the full harness is also retained inside the second portion 118. Therefore, even if a situation occurs in which the metal ring on the full harness side and the belt-shaped member on the lanyard side pull the connector for connecting a safety device in opposite directions, it acts to prevent the connector for connecting a safety device 100 from being easily broken.

[0034] <Gate support part 123> In first portion 116 formed across the left and right sides at the lower end of frame 110, the end opposite spine 112 curves toward second portion 118. The end of this curve toward second portion 118 ends as it heads toward second portion 118. The tip of this end is one end of frame 110, and this is designated as gate support portion 123. The angle at which gate support portion 123 is inclined relative to spine 112 is approximately 15° to 60°. An example of this angle is shown in the relevant portion of FIG. 1. In the example shown in this figure, the inclination of gate support portion 123 relative to spine 112 determines the inclination of gate 120 relative to spine 112.

[0035] The straight portion at the end of the curve in the gate support portion 123 has a boundary with the gate 120, which will be described later. The straight portion of the gate support portion 123 supports the gate 120. As will be described later, the gate 120 can have any other configuration, including a configuration in which it rotates toward the inside (spine 112 side) of the connector 100 for connecting a safety device. However, in any configuration, the gate support portion 123 of the first embodiment supports the gate 120 on the tip side of the boundary with the first portion 116.

[0036] As an example, a gate support part 123 in a configuration in which the gate 120 rotates toward the inside (spine 112 side) of the connector 100 for connecting a safety device will be described. As shown in Figures 4 and 7, the linear part of the gate support part 123 is formed to be narrower in width in the front-rear direction than the first part 116. By compressing and narrowing the width of the gate support part 123 in this manner, the metal constituting the frame 110 is made denser, improving strength.

[0037] <Nose 114a> The end of the second portion 118 formed in an arc shape opposite to the spine 112, i.e., the tip side (the other end of the frame 110) formed in a straight line toward the gate support portion 123, is defined as nose 114a. Nose 114a is one of the contact points between the gate 120 and the frame 110. When nose 114a is in contact with the end of gate 120, the connector is in a closed state. In contrast, when nose 114a is not in contact, the connector is in an open state.

[0038] Nose 114a is formed so as to engage with a recess provided in gate 120. This shape is, for example, a convex shape that matches the recess. Nose 114a is formed so as to have a convex shape along the rotation direction of gate 120.

[0039] In the example of the connector shown in Figs. 4, 5, and 7 to 9, the gate 120 is rotatably supported by the gate support portion 123 and is configured to rotate inwardly of the connector 100 for connecting a safety device. In this configuration, when the gate 120 rotates inwardly of the connector 100 for connecting a safety device, the contact between the nose 114a and the gate 120 is released. Also, when the gate 120 rotates outwardly from a non-contact state between the two, the nose 114a and the gate 120 come into contact with each other. The gate 120 is rotatably supported by the gate support portion 123, but is prevented from rotating outwardly from that position by contacting and engaging with the nose 114a. In other words, the nose 114a determines the rotation range of the gate 120.

[0040] <Gate 120> The gate 120 is a part of the connector 100 for connecting a safety device that switches between the open state and the closed state. As shown in Figures 8 and 9, the gate 120 is configured so that, with its base end supported by the gate support part 123, its tip can move back and forth between a direction in which it contacts the nose 114a and a direction in which it does not contact the nose 114a. The gate 120 is biased outward by a biasing member (not shown). In other words, the recess at the tip of the gate 120 is biased toward the nose 114a so as to contact the nose 114a.

[0041] In such a configuration, as an example, a leaf spring or a coil spring (not shown) is provided inside the gate 120. The spring member is held on the rotation axis P (FIG. 8) side of the gate support portion 123. The spring member is also arranged toward the tip of the gate 120 so as to be generally along the axial direction of the gate 120. When the gate 120 is pressed against the biasing force of the spring member and rotated toward the spine 112, it bends in that direction. On the other hand, when the force pressing the gate 120 is released or the pressing force becomes weaker than the biasing force of the spring member, the tip of the gate 120 rotates toward the nose 114a due to the biasing force.

[0042] The gate 120 shown in Figures 8 and 9 has a so-called twist lock (auto-lock) mechanism. The gate 120 has a gate body 122 that rotates as described above, and a lock cover 121. The lock cover 121 is provided so as to cover the periphery of the gate body 122 along the axial direction of the gate body 122 that closes the opening 114 (see Figures 8 and 9) of the frame 110. The lock cover 121 is also provided so as to be rotatable around the axis of the gate body 122.

[0043] Furthermore, the lock cover 121 is provided with a tip side slit S1 at a position corresponding to the recess that receives the nose 114a in the gate body 122 (see FIGS. 7 and 8). The tip side slit S1 has a length that makes contact with at least a part of the nose 114a in the axial direction of the gate body 122. Furthermore, the width of the tip side slit S1 is at least wider than the widest width of the nose 114a.

[0044] Furthermore, the lock cover 121 is provided with a base-side slit S2 at a position where the gate main body 122 and the gate support part 123 overlap (see Figs. 7 and 8). That is, the position is on the base-side of the gate 120, extending axially downward from the tip-side slit S1 toward the gate support part 123. The base-side slit S2 has a length that contacts at least a part of the outer surface of the gate support part 123 in the axial direction of the gate main body 122. Moreover, the width of the base-side slit S2 is at least wider than the widest width of the gate support part 123.

[0045] Furthermore, the lock cover 121 has a concave cutout portion at a position a predetermined distance away from the base end slit S2 in the rotation direction of the lock cover 121. In the example of Fig. 8, this is the portion that contacts the rotation axis P on the left side of the base end slit S2. The length (width) of this cutout portion in the rotation direction is formed to be slightly wider than the tip end slit S1. In this way, each end of the width direction of the cutout portion of the lock cover 121 abuts against one side or the other side of the rotation axis P protruding from the gate support portion 123, thereby limiting the rotation range of the lock cover 121.

[0046] When lock cover 121 is rotated to a position where nose 114a and tip-side slit S1 overlap as shown in Fig. 4, nose 114a is exposed by tip-side slit S1 and at the same time gate support part 123 is exposed by base-side slit S2, allowing rotation of gate body 122. At this time, one end of the cutout part of lock cover 121 abuts against rotation axis P as shown in Fig. 8, preventing lock cover 121 from rotating too far beyond the above-mentioned exposed state as shown in Fig. 7, making it possible to easily maintain the released state.

[0047] In addition, even if the gate body 122 is to be rotated while the lock cover 121 covers the nose 114a and the gate support portion 123, the lock cover 121 abuts against the nose 114a and the gate support portion 123. In other words, the rotation of the gate 120 is restricted. For convenience of explanation, this is referred to as the "locked state". The width of the cutout portion of the lock cover 121 is formed slightly wider than the width of the tip-side slit S1. This makes it possible to minimize the amount of rotation of the lock cover 121 in order to release the locked state from the locked state (hereinafter referred to as the "released state" as appropriate). The released state is a state in which the slits (S1, S2) of the lock cover 121 expose the nose 114a and the gate support portion 123, respectively.

[0048] On the other hand, from the released state, the lock cover 121 is rotated to a state in which the nose 114a and the gate support portion 123 are covered by the lock cover 121, i.e., the locked state can be switched to. If the lock cover 121 rotates too far in that direction (forward) at that time, the next time the user switches to the released state, the lock cover 121 must be rotated significantly. However, the other end (the other end relative to the above-mentioned one end) of the cutout portion of the lock cover 121 abuts against the rotation axis P, which prevents the lock cover 121 from rotating too far and makes it possible to control the amount of rotation as small as possible for the next time the lock cover is switched to the released state. In other words, it becomes easier to release the locked state, which contributes to improved work efficiency.

[0049] Further, a biasing member (not shown) is provided on the inner peripheral surface side of the lock cover 121 for biasing the lock cover 121 in a rotation direction for the locked state. Specifically, it is as follows. First, the locked state is normally formed by the biasing member. On the other hand, when the lock cover 121 is rotated in a direction for the unlocked state against the biasing force of the biasing member, it switches to the unlocked state. When the force for rotating the lock cover 121 is released or the force becomes weaker than the biasing force, the lock cover 121 is biased and rotated in a direction for covering the nose 114a and the gate support portion 123. In this way, the locked state is established again.

[0050] 8 and 9 is one example of the gate 120, and other configurations are also possible. In other words, the gate 120 may have any configuration as long as it is capable of switching the opening 114 of the frame 110 between a closed state and an open state. For example, the gate 120 may be configured so that the tip of the gate 120 can be moved in an axial direction with respect to one end of the frame 110 where the tip contacts the nose 114a, thereby allowing the tip to approach and separate from the one end of the frame 110. In the configuration in which the tip of the gate 120 of this modified example slides, the sliding member may be rotated in a direction perpendicular to the sliding direction, i.e., in a direction perpendicular to the axial direction of the gate 120, to lock the slide.

[0051] (Action and effect) The operation and effects of the safety device connector 100 according to the first embodiment described above will be described with reference to FIG.

[0052] According to the embodiment of the connector 100 for connecting a safety device, the first portion 116 connecting the spine 112 and the gate support portion 123 is formed in a straight line or with a small curvature, so that a strip that is likely to be hung on the first portion 116 is unlikely to move in the left-right direction. This makes it possible to prevent deterioration such as fraying and tearing of the end of the strip that may occur due to left-right movement of the strip. The surface on the first portion 116 side is configured to have a large inclination angle with respect to the spine 112 so as to hold an item to be hung on the first portion 116 side. The second portion 118 is formed in an arc shape or with a larger curvature than the first portion 116. This makes it possible to prevent a shaft-shaped member that is likely to be hung on the first portion 116 from moving in the left-right direction (so-called rattling).

[0053] With this configuration, it is possible to prevent an item hung on the safety device connector 100 from moving to a position where the safety device connector 100 is likely to be damaged, depending on the usage conditions of the safety device connector 100, etc.

[0054] In addition, the shape of the first portion 116 increases the degree of adhesion between the band-shaped material hung on it and the first portion 116. The width of the first portion 116 is set to match the width of the band-shaped material to be hung. This suppresses the movement of the band-shaped material in the left-right direction. As a result, it is possible to prevent fraying, tearing, etc., of the ends of the band-shaped material in the width direction. The width of the second portion 118 is set according to the width of the shaft-shaped member to be hung. For example, by making the width 0.5 mm to several mm wider than the shaft-shaped member considered to have the largest diameter (for example, a D-ring with a diameter of 13 mm), the movement of the belt-shaped member in the left and right direction is suppressed. This suppresses the movement of the shaft-shaped member to be hung in the left and right direction. As a result, it is possible to prevent the movement of the shaft-shaped member that would apply tensile strength in the minor axis, and also to make the shaft-shaped member instantly adhere to the frame 110 when the user makes a large instantaneous movement (such as when falling), thereby reducing the sense of fear felt by the user.

[0055] (Modification of the first embodiment) Modifications of the first embodiment will be described below with reference to Figures 11 to 15. In Figures 11 to 15B, in order to make it easy to distinguish the outer shape of frame 110 and protrusions 112P of safety device connector 100, these are shown by solid lines and the rest are shown by dashed lines. <Protrusion 112P> 11 to 15, etc., in this modification, a protrusion 112P is provided on the inside of the spine 112, slightly below the center in the vertical direction of the frame 110. In other words, the position is on the gate 120 side of the peripheral surface of the spine 112, and corresponds to the rotation axis P side of the gate 120 or the gate support part 123 side in the vertical direction.

[0056] This projection 112P is provided integrally with the frame 110. The projection 112P has a base end 112a, a tip end 112b, and an upper inclined surface 112c that slopes upward from the tip end 112b toward the circumferential surface of the spine 112. The base end 112a corresponds to the boundary with the spine 112.

[0057] As shown in Figure 13, etc., the tip 112b is a protruding end surface of the projection 112P, and is formed to be curved, i.e., to have an R. As shown in Figures 11 and 12, etc., the protruding direction of the tip 112b is formed so that the gradient of the upper inclined surface 112c relative to the base end 112a is gentle, whereas the gradient from the tip 112b downward (towards the first portion 116) is relatively steep. This projection 112P is designed to fasten, for example, a flat rope (belt-like member) to the first portion 116 side.

[0058] To achieve this effect, it is desirable to ensure the height and gradient of the inclined surface below the tip 112b. Also, by minimizing the gradient of the upper inclined surface 112c, it becomes easier to guide the belt-shaped member toward the first portion 116. To achieve this, the upper inclined surface 112c with a low gradient is configured to have a predetermined length. This length is, for example, 2 to 7 times that of the lower inclined surface. This is because if the gradient is low and the length is short, the height of the tip 112b cannot be ensured.

[0059] Also, there may be various types of articles to be fastened to the first portion 116. For example, it may be a thick belt-like member, or it may be a belt-like member of normal thickness. Therefore, in order to accommodate a wide range of such articles, it is desirable that the base end position of the lower inclined surface of the projection 112P is located at a height of 8 mm or less from the lower end of the spine 112.

[0060] According to the connector 100 for connecting a safety device of this embodiment, a protrusion 112P is provided on the first portion 116 side of the spine 112. Moreover, the gradient of the protrusion 112P on the first portion 116 side is relatively steep. Therefore, even if the connector 100 for connecting a safety device tries to rotate and the belt-like member tries to move toward the spine 112, the protrusion 112P comes into contact with the lower surface thereof and the movement can be prevented.

[0061] In addition, since the second portion 118 side is formed in an arc shape, the metal ring of the full harness is also retained inside the second portion 118. Therefore, even if a situation occurs in which the metal ring on the full harness side and the belt-like member on the lanyard side pull on the safety device connecting connector in opposite directions, this prevents the safety device connecting connector 100 from being easily broken. Note that the following embodiment is described on the assumption that the protrusion 112P is provided, but the spine 112 may have a configuration without a protrusion.

[0062] In order to reduce the size of the connecting ring 100, the height of the projection 112P is determined according to the ratio of the width of the flat rope to the width of the first portion .

[0063] [Second embodiment] Next, a connector 200 for connecting a safety device according to a second embodiment will be described with reference to Figs. 16 to 29. Descriptions of parts common to the first embodiment will be omitted as appropriate. The connector 200 for connecting a safety device in the second embodiment is configured to include a frame 210 and a gate 220, similar to the first embodiment. The frame 210 is configured in the same manner as the first embodiment, with a first portion 216 provided at the bottom of the spine 212 and a second portion 218 provided at the top. A gate support portion 223 is provided at the tip of the first portion 216, and an opening 214 is provided at the tip of the second portion 218. The shapes and configurations of these are similar to those of the first embodiment.

[0064] <Gate support portion 223, nose 214a> 23 to 29, however, in order to tilt the rotation direction of a gate 220, which will be described later, the gate support portion 223 is tilted with respect to the spine 212 by approximately the amount of the tilt angle. Similarly, the nose 214a is also configured to be tilted in the same manner.

[0065] <Gate 220> The gate 220 includes a gate body 222 rotatably supported on a rotation axis P of a gate support part 223, and a lock cover 221 provided around the gate body 222. The twist lock mechanism and the like for the illustrated gate 220 are similar to those in the first embodiment. However, since the rotation axis P is different, an overview will be given below.

[0066] <Rotation axis P'> The rotation axis P in the first embodiment is provided so as to be perpendicular to the second direction connecting the nose 114a (see Figs. 22-23, etc.) and the tip of the gate support part 123, and the first direction connecting one end and the other end of the spine 112. The gate 120 pivoted thereon rotates parallel to the plane when the first direction and the second direction are assumed to be viewed on the same plane. However, in the case of the second embodiment, the gate 220 rotates at an incline with respect to the assumed plane. Therefore, the rotation axis P' in the second embodiment is provided at an incline with respect to the rotation axis P in the first embodiment in order to rotate the gate 220 at a predetermined inclination angle. The inclination angle will be described in detail in the explanation of the rotation direction of the gate 220 below.

[0067] <Rotation direction> As described above, the gate 220 according to the second embodiment (for example, Figs. 16 to 22) rotates at an angle inclined by a predetermined angle with respect to the assumed plane. This predetermined angle will be described with reference to Figs. 26 and 29. As shown in the upper diagrams of Figs. 26 and 29, the angle at which the rotation direction is inclined with respect to the plane is an angle at which the front part of the tip of the gate 220 (the left side as viewed in Fig. 26) approaches the rear side of the spine 212. In these diagrams, the left front part of the tip edge of the gate 220 that has rotated to a position farthest from the nose 214a approaches the rear of the protrusion 212P of the spine 212. The predetermined angle is such an angle.

[0068] Conventionally, it is necessary to secure the width of the inner region of the frame by the length from the base end to the tip of the gate. Therefore, the second part (118, 218) expands in the left and right direction, and it is not possible to prevent the shaft member (D ring, etc.) located there from rattling. In addition, the connector for connecting the safety device becomes larger and heavier by the width. In contrast, in this embodiment, the rotation direction is inclined and the tip of the gate 220 is moved out of the frame 210, so that it is no longer necessary to secure the width of the inner region of the frame by the length from the base end to the tip of the gate. This makes it possible to prevent rattling and to miniaturize the connector for connecting the safety device, which in turn makes it possible to reduce the weight.

[0069] In this embodiment, the tip of the gate 220 is not only moved out of the frame 210, but also rotated in such a way that the left front part of the tip edge of the gate 220 approaches the rear of the protrusion 212P when the gate 220 is tilted to the furthest side toward the spine 212. This is because it is desirable for the gate 220 to rotate toward the spine 212 while being inclined. For example, a user often rotates the gate 220 with the twist lock mechanism in the released state. Assuming this, it is easy to hang an article to be hung on the safety device connecting connector by pressing it against the gate 220 in the inward direction of the frame 210 and rotating it.

[0070] However, the inclination angle may be any angle within the range of -90° to -15° or 15° +90°. Furthermore, from the viewpoint of the operability of the gate 220, the inclination angle is preferably within the range of -60° to -15° or 15° to +60°. In other words, if the left front part or right rear part of the tip edge of the gate 220 comes to the center, it will hit the spine 212. Therefore, the second part 218 has to be expanded. As a result, the whole becomes larger and heavier. Also, if the inclination exceeds -60° or 60°, it becomes impossible to open the gate by gripping it with one hand, and operability decreases. Therefore, the above angles are preferable.

[0071] (Action and effect) The operation and effects of the safety device connecting connector 200 according to the second embodiment described above will be described.

[0072] According to the safety device connecting connector 200 of the embodiment, a protrusion 212P is provided on the inner surface of the spine 212 on the side (lower side) of the rotation axis P of the gate 220 in the axial direction. A first portion 216 connecting the spine 212 and the gate support portion 223 is formed to be straight or have a small curvature. The surface of the protrusion 212P on the first portion 216 side has a large inclination angle and is configured to hold an article to be hung on the first portion 216 side. A second portion 218 is formed to be arcuate or have a larger curvature than the first portion 216.

[0073] With this configuration, it is possible to prevent an item hung on the safety device connecting connector 200 from moving to a position where the safety device connecting connector 200 is likely to be damaged, depending on the usage state of the safety device connecting connector 200, etc.

[0074] In this embodiment, the front left part of the gate 220 at the tip edge is configured not to be too far from the spine 212 while the tip of the gate 220 is moved out of the frame 210. With this configuration, when the user rotates the gate 220 with the twist lock mechanism in the released state, the article can be pressed against the gate 220 to rotate it, making it easier to hang it. This configuration also makes it possible to prevent the durability from being affected. In addition, by tilting the rotation direction to move the tip of the gate 220 out of the frame 210, it is no longer necessary to ensure a large area of ​​the inner area of ​​the frame by the length from the base end to the tip of the gate. This makes it possible to prevent rattling and reduce the size of the connector for connecting the safety device, which in turn makes it possible to reduce the weight.

[0075] [Third embodiment] Next, a connector 300 for connecting a safety device according to a third embodiment will be described with reference to FIG. 30. Descriptions of parts common to the second embodiment will be omitted where appropriate. The connector 300 for connecting a safety device in the third embodiment is configured to include a frame 310 and a gate 320, similar to the second embodiment. The frame 310 is configured in the same manner as the first embodiment, with a first portion 316 provided at the bottom of the spine 312 and a second portion 318 provided at the top. A gate support portion 323 is provided at the tip of the first portion 316, and a nose 314a is provided at the tip of the second portion 318. The shapes and configurations of these are similar to those of the second embodiment.

[0076] <Protrusion 312P> In the third embodiment, the protrusion 312P is provided so as to cover the inner surface of the spine 312 from the front to the right (toward the inside of the frame 310) of the spine 312 to the rear. Note that the base end 312a and the tip end 312b of the protrusion 312P are curved, and the inclination angle of the upper inclined surface 312c is the same as that described in the first embodiment.

[0077] In the third embodiment, the protrusion 312P is provided so as to cover the inner surface of the spine 312 from the front to the right (toward the inside of the frame 310) to the rear of the spine 312. However, the present invention is not limited to such a configuration. For example, the protrusion 312P may be provided in a truncated cone shape or a frustum shape so as to go around the axis of the spine 312 once.

[0078] (Action and effect) The safety device connecting connector of the third embodiment described above can also prevent an item hung on the safety device connecting connector 300 from moving to a position where the safety device connecting connector 300 is likely to be damaged, depending on the usage conditions, etc.

[0079] Furthermore, in the combination of this embodiment and the second embodiment, similarly to the second embodiment, when the twist lock mechanism is released and the user rotates the gate 320, the article can be pressed against the gate 320 to rotate it, making it easier to hang. Also, this configuration can prevent any adverse effects on durability.

[0080] [Fourth embodiment] Next, a safety device connector 300 according to a fourth embodiment will be described with reference to Figures 31 to 36. Note that only the first and second parts of the frame are different from the first to third embodiments, and therefore the description of the other parts will be omitted.

[0081] The connector for connecting a safety device in the fourth embodiment includes a frame and a gate, as in the above-mentioned embodiments. The configuration of the spine of the frame is the same as in the above-mentioned embodiments, but the shape of the first part connected to the lower part of the spine 312 is different from the shape of the second part connected to the upper part. As in the above-mentioned embodiments, a gate support part is provided at the tip of the first part, and a nose is provided at the tip of the second part.

[0082] 31 to 36, in the fourth embodiment, the shapes of the first and second portions in the above embodiments are interchanged, that is, the first portion is arc-shaped, and the second portion is linear or curved linearly with a small curvature.

[0083] In the fourth embodiment, the frame as a whole is configured such that each end of the frame is compressed toward the center, thereby densifying the metal structure, thereby improving resistance to tensile loads, impact resistance, and fatigue strength.

[0084] (Action and effect) The connector for connecting a safety device according to the fourth embodiment described above can also prevent an item hung on the connector for connecting a safety device from moving to a position where the connector for connecting a safety device is likely to be damaged, depending on the conditions of use, etc.

[0085] Also, unlike the first to third embodiments, this embodiment assumes that an object with a diameter of 16 mm or 18 mm, such as a rescue rope or a rope rope, will be hung on the second section, and it is necessary to respond to situations in which the width of the second section must be secured compared to the D-rings with a diameter of up to 13 mm for larger objects as in the first to third embodiments. Also, in the case of rescue, the rescue rope needs to be attached and detached extremely quickly, and therefore a margin of width is required.

[0086] The safety device connectors according to the first to fourth embodiments and their modified examples can prevent an object hung on the safety device connector from moving to a position where the safety device connector is likely to be damaged, depending on the usage state, etc. As a result, when used for connecting a safety belt and a lifeline used in climbing, working at height, or rescue, it is possible to prevent accidents caused by damage to the safety device connector and to give the user a sense of security. When used for containers, work tools, etc., it is possible to prevent accidents caused by the containers, tools, etc. falling and economic losses caused by damage to them.

[0087] The above-described embodiments and modified examples can be appropriately combined to obtain the effects of each embodiment, and a synergistic effect can be obtained when combined. The device comprises a frame having a hook portion curved and folded back from one end of a linear portion, with the area from the curved tip to the inside of the curved portion being the hooking area; a gate supported on the other end side of the straight portion of the frame and rotating between a direction abutting against the tip of the hook portion and a direction moving away from it; a rotation axis of the gate; a hole portion drilled in the frame in approximately the same direction as the axial direction of the rotation axis; and a locking portion that is capable of reciprocating movement along the hole portion, is biased toward one side of the frame, and has an abutment portion that protrudes from the hole portion on that one side.

[0088] [Fifth embodiment] Next, a connector 500 for connecting a safety device according to a fifth embodiment will be described with reference to Figs. 37 to 45. Descriptions of parts common to the second embodiment will be omitted as appropriate. The connector 500 for connecting a safety device in the fifth embodiment is configured to include a frame 510 and a gate 520, similar to the second embodiment. The frame 510 is configured in the same manner as the second embodiment, with a first portion 516 provided at the bottom of the spine 512 and a second portion 518 provided at the top. A gate support portion 523 is provided at the tip of the first portion 516, and a nose 514a is provided at the tip of the second portion 518. The shapes and configurations of these are similar to those of the second embodiment.

[0089] <Spine 512> In the fifth embodiment, unlike the second embodiment, the protrusion 212P is not provided.

[0090] (Action and effect) The safety device connecting connector of the fifth embodiment described above can also prevent an item hung on the safety device connecting connector 500 from moving to a position where the safety device connecting connector 500 is likely to be damaged, depending on the usage conditions, etc.

[0091] As in the second embodiment, when the twist lock mechanism is released and the user rotates the gate 520, the article can be pressed against the gate 520 to rotate it, making it easier to hang. This configuration also makes it possible to prevent any adverse effects on durability. In addition, by tilting the rotation direction and moving the tip of the gate 520 out of the frame 510, it is no longer necessary to ensure a large area inside the frame for the length from the base end to the tip of the gate. This makes it possible to prevent rattling and to reduce the size of the connector for connecting the safety device, which in turn makes it possible to reduce the weight.

[0092] (Additional Note) [Claim A] A connector for connecting a safety device, comprising: a frame formed in an open curve with ends facing each other, having an opening for inserting a connecting part of a safety device between the ends; and a gate provided to close the opening and supported by one end of the frame, closing the opening when it comes into contact with the other end and opening the opening when the contact with the other end is released, wherein the frame has a spine on the opposite side to the opening, and of each frame part continuous with each end of the spine, a first part continues with the end of the frame on the gate support part side, and further has a second part connecting the opposite side of the spine to the first part side and a nose which is the part with which the tip of the gate comes into contact, and when the gate rotates and its tip is farthest from the one end of the frame, the extension direction of the gate is inclined by 10° or more with respect to the plane when a first direction from one end of the spine to the other end and a second direction connecting the one end and the other end are viewed on the same plane. [Claim B] The connector for connecting a safety device according to claim A, characterized in that the first portion is formed with a small curvature so that a straight or band-shaped body can be hung thereon, and the second portion of each frame portion, located opposite the first portion, is formed with a large curvature so as to suppress movement of an annular member made of an axial member. [Claim C] The connector for connecting a safety device according to claim A or B, characterized in that the connector comprises a protruding portion that protrudes at least toward the inside of the frame to partially narrow a region between the opening side and the spine side opposite the opening, the protruding portion being provided on the lower side of the spine or in the vicinity of the one end when one end side of the frame is positioned downward and the other end side of the frame is positioned upward, and the gate is pivotally supported on one end of the frame, and when the gate is rotated about the one end from the closed state, the abutment with the other end is released to switch to the open state. [Claim D] The connector for connecting a safety device according to any one of claims A to C, characterized in that the protruding portion is provided on the spine.[Claim E] The connector for connecting a safety device according to any one of claims A to D, characterized in that the protrusion is formed so as to protrude not only inwardly but also in a lateral direction of the frame. [Claim F] The connector for connecting a safety device according to any one of claims A to E, characterized in that the inclination angle of the gate is any angle in the range of -90° to -15° or 15° + 90°. [Claim G] The connector for connecting a safety device comprises a frame formed in an open curve shape with ends facing each other and having an opening for inserting a connecting part of the safety device between the ends, and a gate provided to close the opening and supported by one end of the frame, closing the opening when in contact with the other end and opening the opening when the contact with the other end is released. The connector may comprise a protrusion that protrudes at least inwardly of the frame to partially narrow a region between the opening side and the spine side opposite the opening, the protrusion being provided on the lower side of the spine when the one end side of the frame is downward and the other end side of the frame is upward, and is formed integrally with the frame.

[0093] Although the embodiments of the present invention have been described, the above embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the invention and its equivalents described in the claims. [Explanation of symbols]

[0094] 100, 200, 300 Safety device connector 110, 210, 310 frames 112, 212, 410 Spine 112a, 212a, 312a proximal end 112b, 212b, 312b Tip 112c, 212c, 312c upper slope 114, 214, 314 aperture 114a, 214a, 314a Nose 116, 216, 316 First opening 118, 218, 318 Second opening 120, 220, 320 Gates 121, 221, 321 Lock Cover 122, 222, 322 Gate body 123, 223, 323 Gate support S1 Tip side slit S2 Base end slit P,P´ Rotating axis

Claims

1. A frame formed in an open curve shape with its ends facing each other and having an opening between the ends for inserting a connecting part of a safety device; a gate that is provided to close the opening, is supported by one end of the frame, and closes the opening when the gate is in contact with the other end and opens the opening when the gate is released from the contact with the other end; The frame is a spine on an opposite side to the opening; Among the frame portions connected to the ends of the spine, a first portion connected to an end of the frame on the gate support side is formed with a small curvature so that a straight or band-shaped body can be hung thereon; a second portion of each frame portion, which is located on the opposite side of the first portion and is continuous with the end portion of the spine on the opening side, is formed with a large curvature so as to suppress movement of an annular member made of a shaft member; The spine is provided with a protruding portion that protrudes at least toward the inside of the frame to partially narrow an area between the opening side and the spine side opposite the opening, the protruding portion is provided on the lower side of the spine or in the vicinity of the one end when one end side of the frame is defined as a lower side and the other end side of the frame is defined as an upper side, and is formed integrally with the frame; the angle between the frame and the lower surface of the inclined surface connecting the protruding end and the base end of the protruding portion inward is 50° or more; The angle between the upper surface of the inclined surface connecting the inward protruding end and the base end of the protruding portion and the frame is 40° or less. A connector for connecting a safety device.

2. The gate is supported rotatably at one end of the frame, and when the gate is rotated around the one end from the closed state, the abutment with the other end is released and the gate is in the open state.

2. The connector for connecting a safety device according to claim 1.

3. The protruding portion is formed to protrude not only inwardly but also laterally from the frame.

3. The connector for connecting a safety device according to claim 1 or 2.

4. When the gate rotates and its tip is farthest from the one end of the frame, a first direction connecting one end and the other end of the spine and a second direction connecting one end and the other end of the gate are viewed on the same plane, and the extension direction of the gate is inclined by 10° or more with respect to the plane.

3. The connector for connecting a safety device according to claim 2.

5. The frame is formed such that the lower side is longer than the upper side in a first direction connecting one end and the other end of the spine.

3. The connector for connecting a safety device according to claim 1 or 2.

Images