JP3983201B2 - Component member coupling element - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coupling element that is detachably coupled to a constituent member by being fitted and inserted into a superposed portion of an adjacent constituent member, for example, when a unit constituent member is assembled to construct a constituent having a size as necessary. .
[0002]
[Prior art]
For example, there is a gondola cage or the like used for cleaning or inspecting the outer surface of a building, which is constructed by combining unit components standardized by a shape steel or aluminum mold material. In this way, by configuring the unit constituent members in combination, it can be constructed in an arbitrary size according to the building to be worked, and the unit constituent members can be used repeatedly, which is extremely reasonable.
[0003]
As a coupling structure of unit component members in such a configuration, it is usually common to fasten the overlapping parts of adjacent unit component members by fastening elements such as bolts and nuts, but the coupling operation is easier As described above, there is one in which overlapping portions of adjacent unit constituent members are connected and connected by connecting pins (hereinafter referred to as pin connection).
[0004]
An example of a connecting pin used for pin connection is shown in FIG.
[0005]
This is provided with a pivotable lock metal fitting 20 'at the tip of a shaft-shaped pin shaft main body 10' having a large-diameter head 11 'at the base end, and in the released state shown in FIG. , 3 ′, and the lock fitting 20 ′ at the tip protruding from the coupled members 2 ′, 3 ′ is rocked in a locked state as shown in FIG.
[0006]
The lock fitting 20 ′ has a tapered tip and a plate-like pivot plate 22 ′ extending from the base, and the pivot is fitted into a slit 12 ′ formed at the tip of the shaft body. In combination, the pivot shaft 41 'is orthogonal to the axis of the pin shaft main body 10', and the center axis coincides with the pin shaft main body 10 'between the released state and the locked state where the center line is orthogonal. It can swing. The rocking has a predetermined resistance by friction with the slit 12 'and the rocking shaft 41'.
[0007]
[Problems to be solved by the invention]
However, in the conventional coupling pin configured as described above, the lock fitting 20 'is not fixed in either the released state or the locked state, so that it is relatively easy with a predetermined operating force exceeding the frictional resistance. Will swing. As a result, when a large force is applied in the pulling direction in a state where the members to be coupled 2 'and 3' are coupled, the lock fitting 20 'may swing and fall off due to the force.
[0008]
In addition, in the case of joining innocent members (such cases are overwhelmingly large), as shown in FIG. 6 (B), the lock fitting 20 'is swung in a state of passing through one wall. If it does, penetration of the other wall will become impossible. For this reason, as shown in FIG. 6C, the insertion tube 31 'of the coupling pin is fixed in the internal space, but there is a problem in that the production is troublesome and takes time, leading to an increase in cost. there were.
[0009]
The present invention has been made in view of the above problems, and does not swing even when a large force in the releasing direction is applied to the locked metal fitting in the locked state, and prevents dropping or unnecessary swinging. A possible component coupling element is provided.
[0010]
[Means for Solving the Problems]
The component member coupling element according to the present invention that achieves the above object is a shaft-shaped coupling element that is connected to and inserted into the overlapping portion of adjacent component members and removably couples the component members, a shaft body which is communicated through a swinging locking member supported shift and swingably via a more elongated shape of the pivot hole in the support shaft intersecting the axial center on the tip of the shaft body, Positioning engagement means for defining the swinging posture in a release posture parallel to the shaft main body and a locking posture crossing the shaft main body, the positioning engagement means comprising: An engagement recess for a release posture is formed at the rear end of the swing locking member, and a lock posture is formed on both sides of the swing stop member corresponding to the elongated rear end of the pivot attachment hole. Engagement recesses are formed, fitted into these engagement recesses, and at least the contact portion thereof A locking member formed in an arc shape in the rocking surface of the locking member is provided behind the rocking locking member on the shaft center of the shaft main body, and the locking member faces the rocking locking member. In the release posture in which the swinging locking member and the shaft main body are parallel, the biasing force is applied to the engagement recess at the rear end of the swinging locking member. Drag generated at the point of action P where the locking member abuts on the engaging recess when the locking member biased by the means is fitted and a swinging operation force is applied to the swinging locking member. The component force F in the direction perpendicular to the line connecting the set swing center OS where the support shaft is located at the rear end of the pivot hole and the action point P is the center of the arc of the locking member. In the locking posture in which the pivot locking member and the shaft main body intersect with each other, the shaft main body is more forward in the axial center direction. When the engaging member urged by the urging means is fitted into the engaging recess on one side of the moving engaging member, the swinging operation force applied to the swinging locking member to change the release posture is applied to the swinging member. The locking member shifts within the elongated hole-like pivot attachment hole and is positioned at the tip of the several attachment holes, and the action point P at which the engagement member abuts on the engagement recess by the swing operation force. The component force F in the direction perpendicular to the line connecting the support shaft center OB at which the support shaft is located at the long hole-like tip of the pivot attachment hole and the action point P of the generated drag is the arc of the locking member. A shift structure is provided in which the three engaging recesses, the locking member, and the pivot hole are arranged so as to satisfy the relationship of being rearward in the axial center direction of the shaft main body from the center,
With this shift structure, the lock posture can be released by performing a swing operation while defining the swing locking member at the set swing center OS .
[0011]
With this configuration, when the rocking lock member is swung from the lock position to the release position, simply swinging the rocking lock member causes the elongated hole to move into the elongated hole when rocking from the lock position to the release position. The rocking locking member moves from the movable position to the non-moving position and cannot be rocked. The swing operation to the posture is possible.
[0014]
Further, the swing locking member is formed by extending a plate-like pivoting portion from the tip portion, and the pivoting portion is fitted into a support groove formed in the shaft body to support the support. axis are pivotally supported, in the above-mentioned release position, between the shaft body and the tip leading end abutting vital the pivot portion of the shaft body by axial movement permitted by the shift structure A gap is formed on the support shaft, and the support shaft is positioned at an intermediate portion of the long hole of the shift structure .
[0015]
Thereby, even if a pressing force acts on the dropping member in the released state, the tip of the dropping member abuts on the tip of the shaft main body and the movement is restricted, and the pressing force does not act on the support shaft.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, exemplary configurations of the present invention will be described with reference to the accompanying drawings. 1A and 1B show a coupling pin as a component coupling element according to the present invention, in which FIG. 1A is an overall perspective view, FIG. 1B is a partially broken side view, and FIG. FIG. 4D is a diagram corresponding to FIG.
[0017]
The illustrated connecting pin 1 is pivotally supported by a pivot pin 41 at a distal end of a pin shaft main body 10 as a shaft main body having a head 11 at a base end so as to be swingable by a pivot pin 41. It is configured. Then, in the released state shown in (A) and (B) where the center line: KC of the lock fitting 20 coincides with the axis of the pin shaft body 10: PC, the fitting insertion hole 2A of the overlapping portion of the members 2 and 3 to be joined , 3A, and as shown in (D), the lock fitting 20 at the tip protruding from the coupled member 2 is swung so that its center line: KC is orthogonal to the axis of the pin shaft main body 10: PC Thus, the coupled members 2 and 3 are sandwiched between the head 11 and the lock fitting 20 so as not to be detached. Although not shown, a spring extrapolated to the pin shaft main body 10 may be interposed between the head 11 and the coupled member 2 so as to prevent backlash in the axial direction.
[0018]
The pin shaft main body 10 has a columnar shape with a predetermined diameter, and a large-diameter head portion 11 is integrally formed at the base end, and the tip end is formed in a tapered shape tapered at a predetermined angle. A slit 12 in the diametrical direction as a support groove is formed at the distal end portion with a predetermined depth in the axial direction, and a stopper as a positioning engagement means for defining the swinging posture of the lock fitting 20 at the bottom of the slit 12. A mechanism 30 is provided.
[0019]
The stopper mechanism 30 is configured such that an engaging ball 31 as a locking member is urged toward the distal end side of the pin shaft main body 10 by a stopper spring 32 as an urging member, and is provided at the shaft center of the pin shaft main body 10. It has been.
[0020]
The engagement ball 31 is a steel ball having a diameter larger than the width of the slit 12, and as shown in FIG. 1 (C), the pin shaft has an arcuate cross section that is slightly larger than the inner wall of the slit 12 of the pin shaft body 10. Axis of the main body 10: It is disposed in a guide groove 13 extending along the PC, and can move only in the axial direction along the guide groove 13.
[0021]
The stopper spring 32 is a coil spring having substantially the same outer diameter as that of the engagement ball 31 and is inserted into the holding hole 14 drilled at a predetermined depth in the bottom of the slit 12.
[0022]
The stopper mechanism 30 presses the engagement ball 31 against the pivot plate 22 as a pivot portion of the lock fitting 20 to be described later by the biasing force of the stopper spring 32, and the engagement formed on the pivot plate 22. The rocking posture of the lock fitting 20 is defined by fitting into a stopper recess 24 (24A, 24B) as a recess.
[0023]
The lock fitting 20 has a pivot plate 22 as a pivot plate extending at a right angle on the back side of a tip disk 21 having a predetermined diameter as a tip portion, and the pivot plate 22 is connected to the pin shaft main body 10. It is pivotally supported by a pivot pin 41 that fits into the slit 12 and communicates with the pin shaft main body 10 in a direction orthogonal to the pivot plate portion 22.
[0024]
The pivot plate 22 has a rectangular plate shape with a predetermined thickness, and a pivot hole 23 through which the pivot pin 41 passes is formed at the approximate center thereof. Further, the rear end side (the side opposite to the tip disk 21) is formed. Stopper recesses 24 (release-side recesses 24A and lock-side recesses 24B) into which the engaging balls 31 are respectively fitted are formed on both sides.
[0025]
The pivot hole 23 has a short diameter in which the pivot pin 41 is loosely fitted, and is a long hole that is longer by a predetermined amount from the swing setting center: OS (shown in FIG. 2) of the lock fitting 20 toward the tip side along the center line: KC. It has become. Thus, the lock fitting 20 is provided so as to be movable in the center line direction with respect to the pivot pin 41 (that is, with respect to the pin shaft main body 10) by the length of the pivot hole 23. The major axis length will be described later.
[0026]
The stopper recess 24 (release-side recess 24A, lock-side recess 24B) is an arc-shaped notch corresponding to the engagement ball 31, and the release-side recess 24A is formed at the center of the rear end side, and the lock-side recess 24B. Is formed at the positions of the left and right sides corresponding to the OS.
[0027]
As a result, when the engagement ball 31 of the stopper mechanism 30 is fitted in the release-side recess 24A, the swinging posture of the lock fitting 20 is defined in the release state, and when it is fitted in the lock-side recess 24B, the lock state is defined. It is what. In addition, since the lock side recessed part 24B is formed in the both sides of the pivot attachment board part 22, even if it rock | fluctuates to any side from a cancellation | release state, the lock metal fitting 20 will reach a locked state.
[0028]
In the unlocked state, as shown in FIG. 2A, which is an enlarged view, the long axis (ie, center line: KC) of the pivot hole 23 coincides with the axis: PC of the pin shaft main body 10. The lock fitting 20 is pressed forward (to the tip end side of the pin shaft main body 10) by the urging force of the stopper spring 32 of the stopper mechanism 30. For this reason, the lock fitting 20 is located on the most distal end side of the movable range allowed by the pivot attachment hole 23, and the pivot pin 41 coincides with the swing setting center: OS. At this time, between the back surface of the tip disk 21 of the lock fitting 20 and the front end surface of the pin shaft main body 10 (interval in the figure: a), the rear end edge of the pivoting plate portion 22 and the slit 12 of the pin shaft main body 10. Between the bottom (interval: b in the figure), there is a predetermined interval to allow the rock metal fitting 20 to swing, but the interval: a is the interval: b and the major axis length of the pivot hole 23: It is set smaller than c (a <b, a <c). For this reason, when the lock fitting 20 is pressed against the urging force of the stopper spring 32 in the direction of the central axis, the back surface 21A of the tip disk 21 is moved to the front end surface of the pin shaft main body 10 as shown in FIG. 10A, but the rear end edge of the pivoting plate portion 22 does not abut against the bottom of the slit 12 of the pin shaft body 10, and the pivoting pin 41 is also at the end of the pivoting hole 23. It does n’t come. As a result, even when the connecting pin 1 is inserted into the structures 2 and 3 or the work of pulling out from the structures 2 and 3 is performed with a hammer or the like, the impact load acts directly on the pivot pin 41. There is nothing.
[0029]
Oscillation setting center of lock fitting 20: OS and stopper recess 24 (release-side depression 24A, lock-side depression 24B) By rotating, the engaging ball 31 of the stopper mechanism 30 is set so that it can be pushed back and rocked against the urging force of the stopper spring 32.
[0030]
That is, FIG. 2A is an enlarged view of the distal end portion in the released state, FIG. 2C is a view showing the direction of the force acting on the engagement ball 31 in that state, and an enlarged view of the distal end portion in the locked state. As shown in FIG. 3 (A) and FIG. 3 (B) showing the direction of the force acting on the engagement ball 31 in that state, it acts on the engagement ball 31 by the swinging operation of the lock fitting 20. The resistance against the operating force to be applied is that the corner of the stopper recess 24 in contact with the engagement ball 31 is the action point: P, and this action point: P and the rocking center of the lock fitting 20: OS (in this case, the pivot pin 41 F) which has a component force acting in a direction perpendicular to the line connecting the center) . The direction of the component force F is set so as to face the front end side (left side in the figure) of the coupling pin 10 from the center of the engaging ball 31: OB, and thereby the lock fitting 20 is shaken with a predetermined force or more. The lock fitting 20 can be swung by moving the engagement ball 31 against the urging force of the stopper spring 32 by moving.
[0031]
Here, since the pivot attachment hole 23 of the lock fitting 20 is a long hole extending from the rocking setting center: OS to the tip side, when the lock fitting 20 is swung from the locked state to the released state, FIG. ) The swinging operation force shown in the figure: The component force in the center line direction of FA: FS causes the lock fitting 20 to move within the range of the pivot hole 23, and the pivot pin 41 pivots as shown in FIG. The posture is located on the other end side of the attachment hole 23, and after that, it tries to swing around the pivot pin 41 at that position. The major axis length of the pivot hole 23 is determined by the movement of the lock fitting 20 permitted thereby, so that the direction of the force component F: the direction of F as shown in FIG. : OB or center: OB is set to face the rear end side (right side in the figure) of the coupling pin 10. For this reason, the engagement ball 31 is only pressed against the side surface of the guide groove 13 or pressed toward the lock fitting 20 (moving operation is performed on the left side in the figure), and the lock fitting 20 cannot be swung. It comes to become.
[0032]
In other words, the position of the lock-side recess 24B: the position of P and the long axis length of the pivot hole 23 are set at the center of swing setting OS: the lock fitting 20 attaches the engaging ball 31 to the stopper spring 32. It can be swung by moving operation against the force (movable position), but when the lock fitting 20 moves in the long axis direction of the pivot hole 23 by the component of the swing operation force, the swing center and the action point Is changed so that the engaging ball 31 is not moved (becomes a non-moving position) and cannot be swung. Therefore, it is not possible to swing the lock fitting 20 from the locked state to the released state by simply swinging it.
[0033]
In order to swing the lock fitting 20 in the locked state to the released state, the swing fitting operation is performed while maintaining the movable state in which the pivot shaft 41 is positioned at the pivot setting center: OS of the pivot hole 23. As a result, the direction of the operating force remains from the center of the engaging ball 31 toward the distal end side of the coupling pin 10, and the engaging ball 31 is moved and operated, so that the lock fitting 20 is allowed to swing. . That is, as shown by the arrows in FIGS. 5A and 5B, the lock fitting 20 can be swung by being swung while being pressed toward the distal end side.
[0034]
As described above, since the lock fitting 20 cannot be swung from the locked state to the released state simply by swinging, the locked state is not released by an unexpected operating force. . Therefore, even when a large force is applied in the pulling direction with the coupled members 2 and 3 coupled, there is no possibility of the lock fitting 20 swinging and falling off or unnecessarily swinging, and extremely safe coupling is possible. It becomes. On the other hand, the swinging operation to the release state can be easily performed by obtaining the procedure.
[0035]
Note that the present invention is not limited to the above configuration example, and can be changed as appropriate. For example, the locking member does not have to be spherical, and only a portion that engages with the engaging recess (stopper recess 24) may be spherical, or an arc-shaped plate that matches the rocking surface of the lock fitting 20 may be used. It ’s good.
[0036]
【The invention's effect】
Above As mentioned, according to the component coupling element according to the present invention, a shaft body which is communicated through the component, more elongated shape of the pivot on the support shaft intersecting the axial center on the tip of the shaft body A swing locking member supported so as to be capable of shifting and swinging through a hole, and swinging the swing locking member in a release posture parallel to the shaft body and a lock posture intersecting the shaft body. Positioning engagement means for defining a posture, wherein the positioning engagement means forms an engagement recess for a release posture at a rear end of the swing locking member, and the length of the pivot attachment hole. Engagement recesses for locking postures are formed on both sides of the rocking locking member corresponding to the hole-shaped rear end, and at least the contact portion of the rocking locking member engages with the rocking locking member. A locking member formed in an arc shape in a plane is placed behind the swing locking member on the shaft center of the shaft body. In the release posture in which the swinging locking member and the shaft main body are parallel, the swinging member is configured to include a biasing unit that presses and biases the locking member toward the swinging locking member. The engagement concave portion is applied when the engagement member urged by the urging means is fitted in the engagement concave portion at the rear end of the engagement member, and a swing operation force to change the lock posture is applied to the swing engagement member. The drag generated at the action point P against which the locking member abuts is a line connecting the action point P and the set swing center OS where the support shaft is located at the rear end of the pivot hole. In a lock posture in which the component F in the perpendicular direction is forward in the axial center direction of the shaft main body from the center of the arc of the locking member, the rocking engagement member is in a locked posture in which the rocking locking member and the shaft main body intersect. The locking member urged by the urging means is fitted into the engaging recess on one side of the locking member, and the swinging locking member By applying a swinging operation force to change to a release posture, the swinging locking member shifts in the elongated hole-like pivoting hole and is positioned at the front end of the several mounting holes, and the swinging operation force causes the A line connecting the action point P with the support axis center OB where the support axis is located at the long hole-like tip of the pivot hole, of the drag generated at the action point P at which the locking member comes into contact with the engagement recess. Shift structure in which the three engaging recesses, the locking member, and the pivot hole satisfy the relationship in which the component force F in the direction perpendicular to the center of the arc of the locking member is rearward in the axial direction of the shaft main body. With this shift structure, the lock posture can be released by performing a swing operation while defining the swing locking member at the set swing center OS. The swinging of the member from the locked position to the released position is not performed simply by swinging. The movement locking member moves along the elongated hole when swinging from the locked position to the release position, and the swing locking member moves from the movable position to the non-moving position and becomes impossible. This can be done by swinging while defining the position. As a result, as long as there is no force that regulates the rocking locking member to the movable position, it will not rock even if a large force in the unlocking direction is applied to the locked metal fitting in the locked state. Can be prevented, and extremely safe bonding is possible. On the other hand, the swing operation to the release state can be easily performed by obtaining the procedure.
[0038]
Further, the swing locking member is formed by extending a plate-like pivoting portion from the tip portion, and the pivoting portion is fitted into a support groove formed in the shaft body to support the support. In the release posture, the tip end portion abuts on the tip end of the shaft body by the movement in the axial direction allowed by the shift structure, and between the pivot attachment portion and the shaft body. Since the gap is formed and the support shaft is positioned in the middle portion of the elongated hole of the shift structure, even if a pressing force acts on the dropping member in the released state, the dropping member The distal end abuts against the distal end of the shaft main body and the movement thereof is restricted, and no pressing force acts on the support shaft. Therefore, even when the component member coupling element is inserted into the structure or the operation of extracting it from the structure is struck with a hammer or the like, the load does not act on the support shaft to be damaged.
[Brief description of the drawings]
FIG. 1 shows a connecting pin as a component connecting element according to the present invention, (A) is an overall perspective view, (B) is a partially broken side view, and (C) is a CC of (B). Sectional drawing (D) is a view corresponding to (B) showing the combined action state.
FIGS. 2A and 2B are enlarged views of the lock fitting being released, FIG. 2B is a view showing the lock fitting being pressed in the axial direction from the state of FIG. It is a figure which shows the direction of the force which acts at the time of making it rock from.
FIG. 3A is an enlarged view of the lock fitting in the locked state, and FIG. 3B is a diagram showing the direction of the force acting when the lock fitting is swung from the locked state.
4A is an enlarged view in the middle of the lock fitting swinging from the locked state to the release side, and FIG. 4B is a diagram showing the direction of the force acting at that time.
FIGS. 5A and 5B are explanatory views of a swinging operation from the locked state of the lock fitting to the release side.
FIG. 6 is a view showing a coupling element as a conventional example.
[Explanation of symbols]
1 Connecting pin (Component member connecting element)
2,3 Constituent members 10 Pin shaft body (shaft body)
12 Slit (support groove)
20 Locking bracket (swinging locking member)
21 tip disk (tip)
22 Pivot plate part (pivot part)
23 Pivoting hole (shift structure)
24 Stopper recess (engagement recess)
24A Release-side recess (engagement recess)
24B Lock side recess (engagement recess)
30 Stopper mechanism (positioning engagement means)
31 Engaging ball (locking member)
32 Stopper spring (biasing member)
41 Pivoting pin (support shaft)

Claims (2)

A shaft-like coupling element that is inserted into the overlapping portion of adjacent component members and is detachably coupled to the component members,
A shaft body that is communicating through to the component, Yuradogakari which is supported to be shifted and swinging through a more elongated shape of the pivot hole in the support shaft intersecting the axial center on the tip of the shaft body A stop member, and positioning engagement means for defining a swinging posture in a releasing posture parallel to the shaft main body and a locking posture intersecting the shaft main body,
The positioning engagement means is formed with an engagement recess for a release posture at the rear end of the swing locking member, and the swing locking member corresponding to the elongated rear end of the pivot hole. Engaging recesses for locking postures are formed on both sides of the locking member, and the engaging member is fitted into these engaging recesses and at least a contact portion thereof is formed in an arc shape within the swinging surface of the swinging locking member. Provided behind the swing locking member on the shaft center of the shaft body, and is configured to include a biasing means for pressing and biasing the locking member toward the swing locking member,
In the release posture in which the swinging locking member and the shaft body are parallel, the locking member biased by the biasing means is fitted in the engagement recess at the rear end of the swinging locking member. A drag force generated at an action point P at which the locking member comes into contact with the engagement recess when a swinging operation force changing to a locking posture is applied to the dynamic locking member at the rear end of the long hole-like shape of the pivot attachment hole. While the component force F in the direction perpendicular to the line connecting the set swing center OS where the support shaft is located and the point of action P is in front of the center of the arc of the locking member in the axial direction of the shaft body,
In the locking posture where the swing locking member and the shaft main body intersect, the locking member biased by the biasing means is fitted in the engagement recess on one side of the swing locking member. When the swinging operation force for changing to the release posture is applied to the dynamic locking member, the swinging locking member shifts in the elongated hole-like pivotal mounting hole and is positioned at the tip of the several mounting holes, and the swinging locking member The support shaft center OB at which the support shaft is located at the long hole-like tip of the pivot attachment hole and the action point of the drag generated at the action point P at which the locking member comes into contact with the engagement recess by the dynamic operation force The three engaging recesses, the locking members, and the pivot holes satisfying the relationship in which the component force F in the direction perpendicular to the line connecting P is rearward in the axial center direction of the shaft body from the center of the arc of the locking member. The shift structure that is arranged is provided,
A component member coupling element configured to be able to release a locked posture by performing a swing operation while defining the swing locking member at the set swing center OS in this shift structure .   Further, the swing locking member is formed by extending a plate-like pivoting portion from the tip portion, and the pivoting portion is fitted into a support groove formed in the shaft main body to support the support. In the release posture, the tip end portion abuts on the tip end of the shaft body by the movement in the axial direction allowed by the shift structure, and between the pivot attachment portion and the shaft body. The constituent member coupling element according to claim 1, wherein a gap is formed and the support shaft is positioned at an intermediate portion of the elongated hole of the shift structure.

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