JPH0529298Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to an improvement of a pipe gripping fitting for attaching scaffolding boards, etc. to a round tubular support frame during construction work, etc. The present invention is characterized in that it facilitates and secures attachment to and removal from the round tubular support frame, and allows temporary placement of scaffolding boards.

(Prior Art) As a conventional metal fitting of this kind, there is a "grip metal fitting" published in Japanese Utility Model Application Publication No. 52-65033. this is,
As shown in FIG. 5, a link piece d is provided with a predetermined bifurcated guide slot b on the side of the plate surface of the hook piece a and a large operating portion c near the upper end. The link piece is slidably attached via pins e and f, and when the hook piece a is hooked on the round tubular support frame g, the operating enlarged part c is pressed by the round tubular support frame g. d rotates clockwise in the figure based on the guiding action of the forked guide slot b, so that the lower end of the link piece d holds the lower edge of the round tubular support frame g, It is constructed to stabilize the hooking of the hook piece a.

(Problems to be Solved by the Invention) With the conventional gripping metal fittings as described above, a situation such as unexpected rotation of the link piece d occurs when another object hits the operating bulge. For example, when erecting a scaffolding board with the gripping fittings attached to the four corners, the hook pieces a at all four corners are immediately locked just by touching the round tubular support frame g. It is necessary to erect the scaffolding board while keeping it in a position that corresponds appropriately to the round tubular support frame g.In other words, it is extremely difficult to adjust the position of the scaffolding board in order to erect it. Therefore, a problem inevitably arises in that the work of erecting the scaffolding board can only be carried out with a large number of workers lifting the entire scaffolding board.

The present invention is characterized in that it attempts to solve the problems in the prior art as described above.

(Means for Solving the Problems) The present invention provides an inwardly arcuate side edge of the hook piece 2 having a semicircular opening 2a for hooking onto the round tubular support frame 3. Round tubular support frame 3
A stopper edge 4a for holding the lower edge is provided, and a temporary holding edge 4 is provided in the lower half of the opposite side edge.
b, and the main guide groove 5 has an inward arc shape on the plate surface over almost the entire length in the vertical direction.
A link piece 4 is formed by drilling an auxiliary guide groove 6 that branches from the middle of the main guide groove 5 and stands up to the side, near the base end of the hook piece 2. The upper guide pin 7 is located at the upper end of the main guide slot 5 with respect to the upper guide pin 7 and the lower guide pin 8 attached to the sides.
By fitting the lower guide pin 8 so as to be positioned in the middle part of the auxiliary guide slot 6, that is, slightly above the branching part of the auxiliary guide slot 6, the stopper edge 4a functions as a lower edge holding member for the round tubular support frame 3. The link piece 4 is suspended based on its own weight in such a manner that the link piece 4 is pushed up, so that the lower guide pin 8 is located at the lower end of the main guide slot 5, and the upper guide pin 7 When the stopper edge 4a is located in the middle part of the main guide slot 5, that is, slightly above the branching part of the auxiliary guide slot 6, the stopper edge 4a is converted into a state in which the lower edge is released from holding the round tubular support frame 3, Furthermore,
By rotating it with its lower end pushed up slightly, the upper guide pin 7 is positioned near the upper end of the main guide slot 5, and the lower guide pin 8 is positioned at the end of the auxiliary guide slot 6. The present invention relates to a tubular body gripping metal fitting characterized in that the temporary placement edge 4b is configured to protrude in a state that allows the temporary placement on the round tubular support frame 3.

(Function) The present invention is used to achieve the purpose of constructing the round tubular support frame 3 of the scaffold board by fixing it, for example, to the four corners of the scaffold board.

When erecting the scaffolding board, in the state shown in FIG. 1, by pushing up the lower end of the link piece 4, the link piece 4 is shaped like an inward arc as shown in FIG. The lower guide pin 8 is positioned at the lower end of the main guide slot 5, and the upper guide pin 7 is inserted into the middle part of the main guide slot 5, that is, the branch of the auxiliary guide slot 6. By positioning the stopper edge 4a slightly upwardly, the stopper edge 4a
is converted into a state in which the lower edge is no longer held against the round tubular support frame 3.

In this state, open the opening 2a of the hook piece 2,
If the link piece 4 is hooked onto the round tubular support frame 3 and then the push-up against the lower end of the link piece 4 is released, the link piece 4
is lowered to the state shown in FIG. 1 based on its own weight, and therefore the lower edge of the round tubular support frame 3 is held by the stopper edge 4a, and the present invention is maintained in a securely latched state. It happens.

In addition, when removing the scaffolding board, if the stopper edge 4a of the link piece 4 is changed to a state where the lower edge is released from the round tubular support frame 3 by pushing up the link piece 4 as described above, then The purpose of removal will be achieved.

On the other hand, when erecting a scaffolding board with gripping fittings of the present invention attached to its four corners, when the scaffolding board is temporarily placed on the round tubular support frame 3, the link pieces 4 are placed in the state shown in FIG. By pushing up the lower end slightly and rotating it counterclockwise with respect to the figure, the upper guide pin 7 can be removed as shown in Figure 3.
By positioning the lower guide pin 8 near the upper end of the main guide slot 5 and positioning it at the end of the auxiliary guide slot 6, the temporary mounting edge 4b can be placed on the round tubular support frame 3. Leave it protruding so that it can be placed.

In this state, each hook piece 2 of the scaffold board
and the round tubular support frame 3 via its temporary storage edge 4b.
Since the latching function of the present invention does not work in this state, the scaffold board can be moved freely to find the appropriate placement position.

After determining the appropriate placement position of the scaffold board, if the hook piece 2 is lifted slightly and the link piece 4 is released from contact with the round tubular support frame 3, the link piece 4 rotates based on its own weight, and the second link piece 4 rotates based on its own weight. It will automatically change to the state where it is latched onto the round tubular support frame 3 as shown in Figure 1, and the erection of the scaffolding board will be completed. At this time, since such a latching action can be applied to each of the four corner gripping fittings, in other words, since the scaffold board is in the correct position based on the temporary placement as described above, it is necessary to adjust the position when latching it. Therefore, the work is extremely easy and can be operated by even one worker.

(Example) An example of the configuration of the present invention shown in the drawings will be described in detail as follows.

In the figure, 1 is an object to be supported such as a scaffolding board, 2 is a hook piece protruding from the four corners of the object 1, and the lower edge is attached to a building to which a scaffolding board or the like is to be attached. A semicircular opening 2a is formed for hooking onto a round tubular support frame 3 such as a frame.

Reference numeral 4 denotes a link piece for slidably attaching to the side surface of the hook piece 2, and the link piece 4 has its inwardly arcuate side edge connected to a stopper edge 4a for holding the lower edge against the round tubular support frame 3. The lower half of the side edge on the opposite side is configured to serve as a temporary storage edge 4b.

Furthermore, the plate surface of the link piece 4 is provided with a main guide groove 5 which has an inward arc shape over almost the entire length in the vertical direction.
is bored therein, and the main guide slot 5 is connected with an auxiliary guide slot 6 that stands up so as to branch outward.

Reference numeral 7 indicates an upper guide pin, and 8 indicates a lower guide pin, which are attached to the side surface of the hook piece 2 near the proximal end. It is attached to the hook piece 2 by being slidably fitted into the hook piece 8.

Furthermore, regarding the attachment form of the link piece 4, as shown in FIG. 1, the upper guide pin 7 reaches the upper end of the main guide slot 5, and the lower guide pin 8 By placing the stopper edge 4a in the middle part of the link, that is, slightly above the branching part of the auxiliary guide slot 6, the stopper edge 4a maintains a state in which it functions as a lower edge holding member for the round tubular support frame 3. The piece 4 is configured to be suspended based on its own weight.

The link piece 4 is, as shown in FIG.
When the lower end is pushed upward, it is guided by the main guide slot 5 which has an inward arc shape, and the lower guide pin 8 is located at the lower end of the main guide slot 5, and the upper guide pin 7 is located at the lower end of the main guide slot 5. By being located in the middle of the main guide slot 5, that is, slightly above the branching part of the auxiliary guide slot 6, the stopper edge 4a is converted into a state in which the lower edge of the round tubular support frame 3 is released. It is structured as follows.

Furthermore, the link piece 4 is rotated counterclockwise with respect to FIG. 1 with its lower end pushed up slightly as shown in FIG. 3, so that the upper guide pin 7
is located near the upper end of the main guide slot 5, and the lower guide pin 8 is located at the end portion of the auxiliary guide slot 6, so that its temporary placement edge 4b protrudes in a state in which it can be placed on the round tubular support frame 3.

(Effect of the invention) The present invention has an inwardly arcuate side edge of the hook piece 2 formed with a semicircular opening 2a for hooking onto the round tubular support frame 3.
A link piece 4 is attached to the hook piece 2, and has a main guide groove 5 formed in an inwardly arched shape along almost the entire longitudinal length of the link piece 4. The upper guide pin 7 is located at the upper end of the main guide slot 5 with respect to the upper guide pin 7 and the lower guide pin 8 that are attached to the side near the base end of the main guide slot 5. By fitting the guide lower pin 8 to the lower guide pin 8, the stopper edge 4a is suspended based on its own weight in such a manner that it maintains a state in which it functions as a lower edge holding member for the round tubular support frame 3, Further, when the link piece 4 is pushed up, the lower guide pin 8 is located at the lower end of the main guide slot 5 and the upper guide pin 7 is located at the middle part of the main guide slot 5. In addition, since the stopper edge 4a is configured to be converted to a state in which the lower edge is released from holding the round tubular support frame 3, when the present invention is used as a gripping fitting for attaching a scaffolding board to the round tubular support frame. , the latching and removal work during erection can be accomplished extremely stably and easily.

That is, in the link piece 4, the main guide slot 5 is guided by the upper guide pin 7 and the lower guide pin 8, and the stopper edge 4a is connected to the round tubular support frame 3.
By rotating along the outer circumference of the
This suspension and cancellation will be achieved.

Therefore, the round tubular support frame 3 due to the link piece 4
This means that the work of latching and removing the latches during erection can be accomplished extremely smoothly and stably.

Further, in the present invention, a temporary holding edge 4b is formed in the lower half of the side edge opposite to the lower edge holding stopper edge 4a, and a temporary holding edge 4b is formed in the middle of the main guide groove hole 5 and stands up laterally. By drilling the auxiliary guide slots 6 in series and rotating the link piece 4 with its lower end slightly pushed up, the upper guide pin 7 moves closer to the upper end of the main guide slot 5. At the same time, the guide lower pin 8 is located at the end of the auxiliary guide slot 6, and its temporary placement edge 4b is located at the round tubular support frame 3.
Since it is constructed so as to protrude so that it can be placed on top, it is possible to achieve the purpose of temporarily placing the scaffolding board on the round tubular support frame 3. Therefore, the work of constructing the scaffolding board is extremely easy and can be accomplished by a small number of workers.

In this state, as shown in FIG. 3, the guide lower pin 8 is located at the end of the auxiliary guide slot 6, and the contact force of the round tubular support frame 3 against the temporary placement edge 4b is , acts as a force that pushes the lower guide pin 8 into the auxiliary guide slot 6. Therefore, the stability of the link piece 4 in the state where it can be temporarily placed is extremely excellent,
The occurrence of a situation such as an unexpected cancellation of a temporary storage state should be completely avoided.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a side view of the invention, Fig. 2 is a side view of the invention in the unlatched state, and Fig. 3 is in a state where it can be temporarily placed. FIG. 4 is a side view showing a link piece 4 in the present invention, and FIG. 5 is a side view of a conventional product. 1...Support object such as scaffolding board, 2...Hook piece,
2a...Opening, 3...Round tubular support frame, 4...Link piece, 4a...Stopper edge, 4b...Temporary placement edge, 5...Main guide slot, 6...Auxiliary guide slot,
7... Upper pin for guidance, 8... Lower pin for guidance.

Claims (1)

[Scope of utility model registration request] At the side of the hook piece 2, which has a semicircular opening 2a for hanging onto the round tubular support frame 3, its inwardly arcuate side edge is attached to a stopper edge 4a for holding the lower edge of the round tubular support frame 3. In addition, a temporary storage edge 4b is formed in the lower half of the side edge on the opposite side, and a main guide groove having an inward arc shape is formed on the plate surface over almost the entire length in the vertical direction. At the base end of the hook piece 2, a link piece 4 is formed by drilling an auxiliary guide groove 6 which branches from the middle of the main guide groove 5 and extends sideways. The upper guide pin 7 is located at the upper end of the main guide slot 5 with respect to the upper guide pin 7 and the lower guide pin 8 attached to the side, and the upper guide pin 7 is located in the middle part of the main guide slot 5, that is, the auxiliary guide. By fitting the lower guide pin 8 so as to be positioned slightly above the branching part of the slot 6, the stopper edge 4a can maintain a state in which it functions as a lower edge holding member for the round tubular support frame 3. The lower guide pin 8 is located at the lower end of the main guide slot 5, and the upper guide pin 7 is located at the lower end of the main guide slot 5, as the link piece 4 is pushed up. 5, that is, slightly above the branching part of the auxiliary guide slot 6, the stopper edge 4a is changed into a state in which the lower edge is released from holding the round tubular support frame 3, and furthermore, the lower end is slightly By rotating it in the pushed up state, the upper guide pin 7 is located near the upper end of the main guide slot 5, and when the lower guide pin 8 is located at the end of the auxiliary guide slot 6, A tubular body gripping metal fitting characterized in that a temporary holding edge 4b is configured to protrude so as to be able to be placed on a round tubular support frame 3.