JPH0737803B2 - Hanging clamp using one-way clutch - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates, and without distinction building materials such as lightweight foam concrete panels with a thin difference in thickness to those from thicker by using a special one-way clutch acting in a linear direction Safety The present invention relates to a new suspension clamp that can be suspended and moved.

[0002]

2. Description of the Related Art In a hanging clamp, a fixed side holding piece (2) is attached to one of the legs (1b) of an inverted U-shaped clamp body (1), and this fixing is performed by using a link mechanism. The movable side holding piece (4) is arranged so as to be close to and away from the side holding piece (2), and the movable side holding piece (4) can be attached to the fixed side holding piece (2). ) In the direction of proximity to hang the building material (18), etc., and move it to the specified position, then the movable side holding piece.
The building material (18) is released by moving (4) in the separating direction.

The suspension clamp (b) of FIG. 9 is an example of a conventional example, and the suspension side link (6) and the holding side link (3) are connected by a link rod (5), and an eccentric cam (30) is provided. ) And the cam receiving part (31) provided on the link rod (5) elastically contact the building material (18) to the two holding pieces (2) and (4) by the action of the operating spring (32) for click operation. The building material (18) is suspended and moved toward a predetermined place.

During this time, the operating rope (3) connected to the lock piece (33) for rotating the eccentric cam (30).
When 4) is entangled with something and pulled, the lock piece (34) may rotate and fall down, and the movable holding piece (4) moves in the separating direction by the click action of the operating spring (32), (1
There was a risk of dropping 8) during transportation.

In the case of the cam type structure, the eccentric cam (3
0) In addition, there is a problem that the number of various parts is increased and the manufacturing cost is increased.

[0006]

The first problem to be solved by the present invention is that in an eccentric cam type suspension clamp, the movable side holding piece portion moves in the separating direction at an undesired time,
Second, there was a risk that the building materials would be dropped during transportation.
Is that there are many parts and the manufacturing cost is high, the number of constituent parts is small, and a safe and reliable operating mechanism is to be developed.

[0007]

[0008]

The present invention solves the above problems.
It was made in order to solve the problem.
The suspension clamp (a) that uses the switch (K)
Of. First, the bidirectional one-way clutch used in the present invention.
The switch (K) includes a main body (9) having a pair of taper holes (8b) which are linearly opposite to each other, and a pair of slide cylinders slidably arranged in the taper holes (8b). (10), a slide rod (11) slidably inserted into both slide cylinders (10), and a ball holding hole (13) formed in each slide cylinder (10), and a taper is provided. The ball (12) located between the hole (8b) and the slide rod (11) and each slide cylinder (10) are urged in the direction of pulling out toward the small diameter opening (8e) side of the tapered hole (8b). The elastic material (16) to be attached to the main body (9) and each slide tube (10)
The elastic member (16) is bent when the slide cylinder (10) is in contact with and separated from the slide cylinder (10) and the slide cylinder (10) has a large diameter opening (8d) of the tapered hole (8c).
The ball (12) is moved to the side to hold the ball (12) in a free state, and the elastic member (1
Due to the elastic action of 6), the ball 12 has a tapered hole 8
b) and a contacting / separating member (15) for holding the slide bar (11) in contact therewith.

The hanging clamp (a) of the present invention is the above-mentioned twin clamp.
Directional one-way clutch (K) is used. An inverted U-shaped clamp body (1) is formed by hanging the legs (1b) from both ends of the horizontal portion (1a), and one leg (1b). The fixed side clamping piece part (2) attached to the inside of the base plate and the clamping side pivot shaft (14) provided on the other leg part (1b).
In b), a clamping block (BK) pivotally attached to the fixed side clamping piece (2) so as to be close to and away from it, and a suspension ring (7) provided in the main body (9) so as to be able to move up and down. And a link rod (5) for connecting the suspension ring (7) and the holding block (BK) to bring the holding block (BK) into and out of contact with the fixed side holding piece portion (2), A main body (9) having a pair of taper holes (8b) facing opposite each other at the top, a pair of slide tubes (10) slidably arranged in the taper holes (8b), and both slide tubes A slide rod (1) having one end slidably inserted in (10) and attached to the holding side link and the slide rod pivoting portion (20) of the link rod (5).
1) and a ball (12) arranged in a ball holding hole (13) formed in each slide cylinder (10) and located between the tapered hole (8b) and the slide rod (11). , 10 An elastic member (16) for urging each slide cylinder (10) in the direction of extracting the slide cylinder (8) toward the small diameter opening (8e) side of the taper hole (8b), and a slide cylinder (11) attached to the main body (9). 1
0) so that the elastic member (16) is bent when the slide cylinder (10) is in contact with the slide cylinder (10) and the slide cylinder (10) has a large diameter opening (8) of the tapered hole (8c).
The ball (12) slides to the taper hole (8b) by the elastic action of the elastic material (16) when the ball (12) is held in a free state by moving to the d) side and is separated from the slide cylinder (10). A one-way clutch (K) composed of a contacting / separating member (15) for holding the bar (11) in contact therewith is installed in the clamp body (1). By using the bidirectional one-way clutch (K), the slide bar (11) is completely locked in the sandwiching direction, so that the movable holding piece moves in the separating direction at an undesired time, and the building material It is possible to perform safe and reliable operation without dropping during transportation.
Also, the number of components can be reduced, and the manufacturing cost can be reduced.

[0010]

Embodiments of the bidirectional one-way clutch (K) according to the present invention will be described below in detail with reference to the illustrated embodiments. First
The embodiment is as shown in FIGS. 1 and 2, (9a) is a guide block, which is fixed by a fixed block (9b), and the guide block (9a) constituting the main body (9) is linearly aligned. A pair of taper holes (8b) facing in mutually opposite directions are formed respectively. In this embodiment, the large-diameter opening portion (8d) side is arranged so as to face outward. (8c) is a guide hole connected to the small opening (8e), (8a) is a straight hole connected to the large opening (8d), here a straight hole (8a), a tapered hole (8b). ) As well as the guide hole portion (8c) to be the working hole (8). A stop ring (8f) for restricting the movement amount of the slide cylinder (10) is arranged on the inner periphery of the straight hole (8a).

The slide cylinder (10) is slidably arranged in the operating hole (8), and the lower part of the slide cylinder (10) is guided by the guide hole portion (8c). (13) is a ball storage hole, which communicates with the inside and outside of the slide cylinder (10),
Usually, a plurality of holes are formed at regular intervals. The accommodated balls (12) are held in a loosely fitted state to some extent.
Reference numeral (10a) is an actuation ring forming a part of the slide cylinder (10), and is integrally fixed to the slide cylinder body (10b) by a retaining ring. As the balls (12), hardened steel balls are usually used, and the balls are provided in the ball holding holes (13) formed in each slide cylinder (10) as described above, and the tapered holes (8b) are provided. It is located between the slide bar (11).

Reference numeral (16) is an elastic member for urging the slide cylinder (10) in the direction to pull it out toward the small diameter opening (8e) side of the tapered hole (8b). In this embodiment, a compression spring is used. It is arranged between the actuation ring (10a) and the guide block (9a).

(11) is a slide rod, both slide cylinders (10)
It is slidably inserted into the slide rod, and in this embodiment, at one end, the slide rod pivot portion (20) of the holding side link (3) and the link rod (5).
The fixture (11a) for attaching to is fixed to the pin.

Reference numeral (15) is a contacting / separating member, both ends of which are formed in a cylindrical shape, an intermediate portion of which is cut off into a flat surface (17) and which is rotatably installed between the fixed blocks (9b). Reference numeral (19) is a C ring for stopping the contacting / separating member (15). The operating ring (10a) of the slide cylinder (10) is designed to sandwich the flat surface (17) of the contacting / separating member (15) from both sides, and by rotating the contacting / separating member (15), one of the operating rings ( 10a) coincides with the flat surface (17).

When the contacting / separating member (15) is rotated so that the flat surface (17) faces upward as shown in FIGS. 1 and 2, the upper operating ring (10a) becomes the flat surface (17). The elastic member (16) extends so that the actuating ring (10a) enters the cut-out portion at the same time, and the slide tube (10) is pulled out to the small diameter opening (8e) side.
As a result, the ball (12) moves to the small diameter opening (8e) side together with the slide tube (10), and the taper hole (8b) and slide rod
The elastic material (16) comes into contact with (11) with a force corresponding to the amount of bending of the elastic material (16). On the other hand, on the lower side, the operating ring (10a) is pushed down by the cylindrical surface of the contacting / separating member (15), and the slide cylinder (10) is pushed out toward the large diameter opening (8d) side, and the ball (12) is also large. It moves to the side of the aperture (8d) and becomes free.

In this state, when the slide bar (11) is pulled downward, the upper ball (12) is in contact with the slide bar (11), and therefore the slide bar (11) and the taper hole (8b). Trying to move to the small diameter opening (8e) side, it bites between the slide rod (11) and the tapered hole (8b), exerting a so-called wedge effect, and strongly contacts the slide rod (11). Ball (12)
Are arranged around the slide bar (11), the slide bar (11) is strongly pinched from the surroundings.
Fix (11) to slide tube (10). On the other hand, the lower ball
Since (12) is in the loose fitting state as described above, the slide rod (1
No contribution is made to the fixation of 1).

When the slide bar (11) is pushed up in the opposite direction, the upper ball (12) is in contact with the slide bar (11), but when the slide bar (11) is attempted to move with the taper hole, Since it will move to the large diameter opening (8d) side of (8b), the gap between the slide rod (11) and the tapered hole (8b) will be equal to or larger than the diameter of the ball (12), and the ball (12) It becomes a loose fitting state. Since the lower ball (12) also remains in the loosely fitted state as described above, it does not contribute to the fixing of the slide rod (11). Therefore, when pushing the slide rod (11) upward, there is no resistance, and the slide rod (11) slides lightly upward in both slide cylinders (10).

When the contacting / separating member (15) is rotated from the above state so that the flat surface (17) faces downward, the reverse of the above case occurs, and the slide bar (11) is lightened downward. Slide,
You will be restrained in the upward direction. In this way, the contact / separation member (1
The restraining direction of the slide bar (11) can be reversed only by rotating 5) half a turn. The contact / separation member (15) should be 90 °
When rotated, both the upper and lower actuating rings (10a)
Since it comes in contact with the cylindrical surface of 5) and is pushed up and down, the slide bar (11) slides lightly both up and down.

FIG. 3 is a sectional view of a bidirectional one-way clutch (K2) according to a second embodiment of the present invention, in which one side of the fixed block (9b) is a screw, and the screw portion (9c) is screwed into the contact portion. Separation nut
By moving the {= contacting / separating member (15)}, the operating ring (1
0a) can be operated.

FIG. 4 is a sectional view of a bidirectional one-way clutch (K3) according to a third embodiment of the present invention. The facing surface of the actuating ring (10a) is a cam, and the actuating projection (which engages / disengages with this cam) 15
a) is formed on the contact / separation member (15), and slide bar (11)
By sliding in a direction perpendicular to, one of the operating rings (10a) is operated, and the restraining direction of the slide rod (11) is defined. In the figure, the contacting / separating member (15) is shown by an imaginary line, and the actuating protrusion (15a) is shown by a broken line.

Although the bidirectional one-way clutch (K) has been described above, it is preferable that the operating hole (8) and the slide cylinder (10) formed in the main body (9) be integrated into one. It can be a one-way one-way clutch (K4) as shown in 1.
(See Figure 5)

Next, the case where the first embodiment of the bidirectional one-way clutch (K1) according to the present invention is used for the suspension clamp (a) will be described. Of course, the applicable model of the one-way clutch is not limited to this. 6 and 7 are front views of an example of the suspension clamp (a) according to the present invention in an open state and a building material suspended state, FIG. 8 is a right side view, and the clamp body (1) is a horizontal part ( Legs (1b) hanging from both ends of (1a)
It is an inverted U-shaped one composed of and. Horizontal part (1a) is 2
It is divided so that the clamp interval can be changed with two mounting shafts (14c), and these are referred to as the body half (1A) (1B), respectively. As you can see from the right side view,
The mounting shaft (14c) is constantly urged to the left by the spring (14d), and the large diameter part (14e) of the mounting shaft (14c) is drilled in the half body (1B) to adjust the clamp width. It fits in the large diameter groove (14g) of the groove (14f) to integrate the body half parts (1A) and (1B). When pushed rightward in the figure against the spring (14d), the small diameter part (14h) of the mounting shaft (14c) enters the clamp width adjustment groove (14f), and the mounting shaft (14c) adjusts the clamp width. Move freely in the groove (14f) and move to the body half (1A) (1
B) can be expanded / contracted to change the clamp interval. In this embodiment, the expansion / contraction can be performed in three stages.

A fixed side holding piece portion (2) is pivotally attached to the inside of one leg portion (1b) of the clamp body (1) and is caused by a tension spring (23). Holding link on the other leg (1b)
A central portion of (3) is rotatably pivotally mounted, and a movable side holding piece portion (4) arranged so as to face the fixed side holding piece portion (2) has the holding link (3). Is pivotally attached to the inner end of. The fixed and movable holding pieces (2) (4) are rectangular plate-shaped and are pivotally attached to the holding link (3) by pivoting protrusions (24).

A lower end of a vertically extending link rod (5) is pivotally attached to an outer end portion of the holding link (3). In addition, one end of the suspension side link (6) on one side of the body half (1A) (left end in the figure)
And the central pivot part (21) of the suspension link (6).
The upper end of the link rod (5) is pivotally attached to the. Further, a suspension ring (7) is attached to the other end (right end in the figure) of the suspension side link (6), and a chain (26) is attached to the suspension ring (7).

The bidirectional one-way clutch (K1) is shown in FIGS.
As shown in Fig. 5, it is rotatably attached to the half body (1A) of the link rod (5) by the clutch pivot shaft (22) and is attached to the lower end of the slide rod (11). The tool (11a) is pivotally attached to the holding link (3) and the slide rod pivoting portion (20) of the link rod (5).

Then, as shown in FIG. 6, both holding pieces (2) (4)
When the suspension ring (7) has been dropped, the operating ring (10a) is moved toward and away from the slide rod (11) so that it can slide freely upward in the figure. Material (1
It is set in 5). In this state, sandwich the building material (18) between the fixed side clamping piece (2) and the movable side clamping piece (4) and pull up the suspension ring (7) with the chain (26) to suspend the suspension side link.
(6) rotates in the counterclockwise direction, and the linking pin (3) rotates in the counterclockwise direction via the link rod (5), and the movable side clamping piece part (4) rotates in the fixed side clamping piece. Move to the part (2) and firmly sandwich the building material (18). At this time, the slide rod (11) is also pulled upward together with the link rod (5).

When the building material (18) is sandwiched between the fixed side holding piece portion (2) and the movable side holding piece portion (4), the link rod (5) and the slide rod (11) also stop. As described above, the upper ball (12) fixes the slide rod (11) by the wedge effect, and the upward movement is free but the downward movement is restricted. Therefore, the movable side holding piece portion (4) tightens the building material (18) in an attempt to move only to the fixed side holding piece portion (2). Therefore, the building material (18) does not fall while the building material (18) is not loosely tightened during the movement.

When the building material (18) is moved to the destination, the contact / separation member
Rotate (15) in the opposite direction to reverse the meshing. This allows the slide bar (11) to move freely in the downward direction, but restricts the upward movement. Therefore, when the building material (18) is dropped to the ground at the destination and the contacting / separating member (15) is reversed to reverse the meshing as described above, the movable side holding piece (4) is fixed by the weight of the building material (18). The building material (18) is released by moving in the direction away from the side sandwiching piece (2). And Slide Bar (11)
Moves downward together with the link rod (5), the slide rod (11) is fixed by the lower ball (12) in the open state, and the upward movement of the slide rod (11) is restricted. . This allows
When moving to the next building material (18) suspension work, the movable side clamping piece
(4) does not move to the fixed side clamping piece (2) side, and it is possible to work while keeping the open state, which makes the work easier.

[0029]

Since the one-way one-way clutch of the present invention has the structure as set forth in claim 1, the ball can be held in a free state only by moving the slide cylinder by the contacting / separating member, or conversely, the taper hole and the slide can be slid. There is an advantage that it can be held in contact with the rod, the number of parts is small, the manufacturing cost can be kept low, and the operation can be performed safely and reliably in the linear direction.

Further, since the bidirectional one-way clutch of the present invention has the structure as set forth in claim 2, only one of the slide cylinders is moved only by moving the contacting / separating member, and one ball is in a free state. And the other ball can be held in a restrained state and the moving direction of the slide bar can be regulated in one direction in a linear direction, and bidirectional clutch operation in a linear direction can be performed safely and reliably at low cost. Can be done.

Furthermore, since the suspension clamp according to the present invention uses the bidirectional one-way clutch as described in claim 3, the slide bar is completely locked in the linear direction only by operating the contact / separation member. The movable side holding piece moves in the separating direction at an undesired time, and it is possible to perform a safe and reliable operation without dropping the building material in the middle of transportation. There are advantages that the number of points can be reduced and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a first bidirectional one-way clutch according to the present invention.
Front sectional view of the embodiment

FIG. 2 is a right side sectional view of FIG.

FIG. 3 is a second bidirectional one-way clutch according to the present invention.
Front sectional view of the embodiment

FIG. 4 is a third bidirectional one-way clutch according to the present invention.
Front sectional view of the embodiment

FIG. 5 is a front sectional view of a one-way one-way clutch according to the present invention.

FIG. 6 is an open front view of a suspension clamp using a bidirectional one-way clutch according to the present invention.

FIG. 7 is a front view of a suspension clamp in a closed state using the bidirectional one-way clutch according to the present invention.

FIG. 8 is a right side view of FIG.

FIG. 9 is a front view of a conventional cam type suspension clamp.

[Explanation of symbols]

 (1)… Clamp body (1a)… Horizontal part (1b)… Leg part (2)… Fixing side holding piece part (5)… Link bar (7)… Suspension ring (8b)… Tapered hole (8e)… Small-diameter opening (9)… Main body (10)… Slide cylinder (11)… Slide bar (12)… Ball (13)… Ball holding hole (14b)… Clamping side pivot shaft (15)… Separating / separating member (16)… Elastic material (BK)… Clamping block

Claims (1)

[Claims] 1. An inverted U-shaped clamp body formed by hanging legs from both ends of a horizontal portion, a fixed side clamping piece attached to the inside of one leg, and another leg. A clamping block pivotally mounted on the clamping side pivoting shaft so that the clamping side can be moved closer to and away from the fixed side clamping piece, a hanging ring that is vertically movable on the main body, and the hanging ring. Link bar for connecting the pinching block and the pinching block to bring the pinching block closer to and away from the pinching piece on the fixed side, the main body having a pair of tapered holes that are opposite to each other on a straight line, and the tapered hole A pair of slide cylinders that are respectively slidably arranged, a slide rod member that is slidably inserted into both slide holes, and has one end attached to the slide rod pivot portion of the sandwiching side link and the link rod, Installed in the ball holding hole drilled in the slide cylinder. A ball located between the taper hole and the slide rod, and an elastic material that urges each slide cylinder in the direction of pulling out each slide cylinder toward the small diameter opening of the taper hole,
It is attached to the main body and is arranged so that it can be attached to and detached from each slide tube.When it is in contact with the slide tube, the elastic material is bent and the slide tube is moved to the large diameter opening side of the taper hole to release the ball. One-way clutch composed of a holding and holding member that holds the ball so as to contact the slide rod with the taper hole by the elastic action of the elastic member when it is held and separated from the slide cylinder is installed in the clamp body. A hanging clamp that uses a one-way clutch.