JP3228221U - Plate holding tool with open / closed holding state - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plate holding tool having an open / close holding posture which can be switched by a slight external force while maintaining a normally closed state or a normally open state at a normal time. SOLUTION: In a plate holding tool, a movable holding piece 20 is rotatably attached to a fixed base 10. The fixing base 10 has a bottom plate portion 11 and an arch portion 12, the arch portion 12 is connected to the rear side of the bottom plate portion 11, and a lower end holding portion 13 is provided at the front edge portion of the bottom plate portion 11. The movable holding piece 20 has a lever form in the middle portion pivotally provided on the arch portion 12 by a fulcrum, and an upper end holding portion 21 facing the lower end holding portion 13 is provided at the leading edge portion from the pivot portion 22 to the front edge. The front part of the head has an S-shaped curved shape, and has a slot 23 extending back and forth across the pivot portion 22. The spring 30 penetrates the slot 23, one end of which is locked to the spring positioning pin of the bottom plate portion 11, and the other end of which is locked to the spring positioning hole 24 of the movable holding piece 20. The movable holding piece 20 changes its position with respect to the pivot portion 22 by rotation generated by an external force. [Selection diagram] Fig. 1

Description

The present invention relates to a plate holding tool having an open / closed holding state, and relates to a plate holding tool that is sustainable in both the normally closed state and the normally open state.

The following Patent Document 1 is given as a published example. Patent Document 1 includes an automatic opening / closing holding claw including a slide base having a hanging portion on one side, a frame whose upper end is connected to the hanging portion, and a plurality of plate body holding claws installed on the frame side of the frame. The plate frame of is described. Each plate holding claw has a fixed base and an obtuse curved holding rod, both ends of the obtuse curved holding rod have a movable holding end and an open holding control end, respectively, and the fixed base has a fixed holding end with respect to the movable holding end. .. The obtuse angle curved holding rod is combined with a pivot and a torsion spring pivotally installed on the fixed base, and the movable holding end is normally closed to the fixed holding end.

Taiwan Registered Utility Model No. M555615

The plate holding tool usually has a normally closed state configuration. When the open pinch control end receives a pushing force directed toward the fixed base, the movable pinch end opens with respect to the fixed pinch end, and the plate body can be attached and detached. When the urging force that urges the open pinch control end disappears, the movable pinch end is closed to the fixed pinch end by the recovery force of the torsion spring, and the plate is pinched so that it can be positioned so that the plate can be processed. Become.

Since some plate processing processes are performed while the plate is being processed, the plate holding tool is held so as to position the plate, and the plate holding part is kept open in a timely manner to expose the sandwiched part of the plate. The predetermined machining process is executed so as not to cause a blind spot in machining. The conventional plate holding tool can only hold either the normally closed state or the normally open state, and the opening and closing of the holding state can only be temporarily changed by an external force. Therefore, when the external force disappears, the original I returned to the pinched state of, and could not maintain the other pinched state.

The present invention has been made in view of the above, and an object thereof is to maintain a normally closed state or a normally open state at normal times, and to switch the pinching state from one state to the other with a slight external force at the time of switching. It is an object of the present invention to provide a plate holding tool having an open / closed holding state.

The plate holding tool having the open / closed holding state of the present invention has a bottom plate portion (11) and an arch portion (12), and the arch portion is connected to the rear side of the bottom plate portion to form a front edge portion of the bottom plate portion. A fixed base (10) provided with a lower end holding portion (13) and a lever form in the middle portion by a fulcrum are pivotally installed in the arch portion, and an upper end holding portion with respect to the lower end holding portion (at the front edge portion). 21) is provided, the front portion from the pivot portion (22) to the front edge is curved in an S shape, and the movable holding piece is movable having a slot (23) extending back and forth across the pivot portion. A spring at a position where the holding piece (20) and both ends are positioned at the bottom plate portion and the movable holding piece through the slot, and the movable holding piece is modified with respect to the pivoted portion by rotation generated by an external force. (30), and when the position of the spring is higher than the pivoting portion, the tensile force of the spring presses the front portion of the movable holding piece from the pivoting portion to the front edge to hold the lower end. When the portion and the upper end holding portion are normally closed and the position of the spring is lower than the pivoting portion, the front portion of the movable holding piece from the pivoting portion to the front edge of the movable holding piece is arched by the tensile force of the spring. It rises until it comes into contact with the portion, and the lower end holding portion and the upper end holding portion exhibit a normally open state.

It is an inclination view which shows the plate body holding tool by embodiment of this invention. It is the schematic which shows the normal closed state of the plate body holding tool by embodiment of this invention. It is the schematic which shows the normal open state of the plate body holding tool by embodiment of this invention.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings.

(One Embodiment)
An embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.
In the plate holding tool according to this embodiment, the movable holding piece 20 is rotatably attached to the fixing base 10.

The fixing base 10 is provided with a lower end holding portion 13 at the front edge portion of the bottom plate portion 11 having the bottom plate portion 11 and the arch portion 12 connected to the rear side of the bottom plate portion 11, and the upper surface of the bottom plate portion 11 is described later. A spring positioning pin 14 for locking one end of the spring 30 is provided. The arch portion 12 has a movable holding piece 20 rotatably attached to the pivot portion 22.

The movable holding piece 20 has a fulcrum in the middle portion swingably attached to the pivot portion 22 of the arch portion 12. The movable holding piece 20 has an S-shaped curved front portion from the pivot portion 22 to the front edge 41, and has an elongated hole-shaped slot 23 extending back and forth across the pivot portion 22. An upper end holding portion 21 facing the lower end holding portion 13 is provided in the vicinity of the front edge 41 of the movable holding piece 20. A spring positioning hole 24 for locking the other end of the spring 30 is provided on the rear side of the slot 23 of the movable holding piece 20. For the movable holding piece 20, the length of the rear portion from the pivot portion 22 to the trailing edge 42 is longer than the length of the front portion from the pivot portion 22 to the front edge 41, and the upper surface 40 of the rear portion has a blind hole 25.

The spring 30 is a tension coil spring, which is loosely inserted into the space of the slot 23, one end of which is locked to the spring positioning pin 14, and the other end of which is locked to the spring positioning hole 24. The closed spring shown in FIG. 2 can be switched to the open state shown in FIG. 3 by applying an external force to the movable holding piece 20. At this time, the spring 30 moves relative to each other in the space of the slot 23 of the movable holding piece 20. The position of the spring 30 is changed according to the position of the movable holding piece 20 with respect to the bottom plate portion 11.

As shown in FIG. 2, when the position of the spring 30 is higher than the pivoting portion 22 of the movable holding piece 20, the tensile force of the spring 30 presses the entire movable holding piece 20 to press the lower end holding portion 13 and the upper end. The sandwiching portion 21 is held in the normally closed state. At this time, when an external force is applied to the upper surface 40 of the rear portion of the movable holding piece 20 in the direction of the arrow 43 shown in FIG. 2, the movable holding piece 20 starts from the closed state (normally closed state) shown in FIG. 2 with the pivot portion 22 as a fulcrum. Rotate counterclockwise. After starting to rotate, the spring 30 rotates further, and when the tensile force of the spring 30 exceeds the peak, it temporarily switches to the open state shown in FIG.

As shown in FIG. 3, when the position of the spring 30 is lower than the pivoting portion 22 of the movable holding piece 20, the entire movable holding piece 20 comes into contact with the arch portion 12 due to the tension of the spring 30.

When an external force is applied to the rear portion of the movable holding piece 20 in the upward direction in FIG. 3, the movable holding piece 20 rotates clockwise from the open state (normally open state) shown in FIG. 3 with the pivot portion 22 as a fulcrum. After it starts to rotate, it rotates further, and when the tensile force of the spring 30 exceeds the peak, it temporarily switches to the closed state (normally closed state) shown in FIG.
As a result, according to the plate holding tool of the present embodiment, the lower end holding portion 13 and the upper end holding portion 21 are switched from the normally closed state to the normally open state, and are switched from the normally open state to the normally closed state. Has a sustainable effect.

Further, since the length of the rear part of the movable holding piece 20 is longer than the length of the front part and the structure is a labor-saving lever, the holding state is switched even with a slight external force in the process of switching the steady holding state of the spring 30. Has the effect of being able to.
Therefore, when the holding state is switched by a slight external force and the movable holding piece 20 has a blind hole 25 on the upper surface 40 at the rear portion, the movable holding piece 20 is attached with a spring 30 by a method of ejecting gas toward the blind hole 25. It rotates against the force and can easily switch between steady holding states.

(Other embodiments)
In the above embodiment of the present invention, the blind hole is provided on the upper surface 40 of the rear part of the movable holding piece 20 for the movable holding piece 20, but in the present invention, it may be provided on the bottom surface of the rear part of the movable holding piece 20.
In another embodiment of the present invention, when the movable holding piece has a blind hole on the upper surface 40 and the bottom surface of the rear portion, the holding state is obtained by selectively blowing air vertically to the upper surface 40 or the bottom surface of the blind hole. Can be easily iteratively switched.
Further, when the movable holding piece has blind holes on the upper surface 40 and the bottom surface of the rear portion, the holding state can be easily switched once by blowing air in either direction.
In the above embodiment, the spring 30 is a tension coil spring, but in the present invention, the spring may be a compression spring.
As described above, the present invention is not limited to the above-described embodiment, and can be implemented in various embodiments without departing from the gist thereof.

10 fixed base,
11 Bottom plate,
12 arches,
13 Lower end holding part,
14 Spring positioning pin,
20 Movable holding piece,
21 Upper end holding part,
22 pivot,
23 slots,
24 Spring positioning hole,
25 blind holes,
30 springs,
40 top surface,
41 Front edge 42 Rear edge.

Claims (4)

A fixing base (10) provided with a bottom plate portion (11), an arch portion (12) connected to the rear side of the bottom plate portion, and a lower end holding portion (13) formed at the front edge portion of the bottom plate portion. When,
The pivot portion (22) rotatably provided with respect to the arch portion, the front portion from the pivot portion to the front edge is curved in an S shape, and the front edge portion faces the lower end holding portion. An upper end holding portion (21) and a movable holding piece (20) provided with a slot (23) extending back and forth across the pivoted portion.
It is loosely inserted into the space of the slot, one end is locked to the bottom plate portion, the other end is locked to the movable holding piece, and the position is changed according to the relative position of the movable holding piece with respect to the bottom plate portion. With a spring (30),
When the position of the spring is higher than that of the pivoting portion, the tensile force of the spring presses the front portion of the movable holding piece from the pivoting portion to the front edge, and the lower end holding portion and the upper end holding portion are normally held. Close and
When the position of the spring is lower than the pivoting portion, the tensile force of the spring raises the movable holding piece from the pivoting portion to the front edge until the front portion abuts on the arch portion, and the lower end holding portion A plate holding tool having an open / closed holding state, wherein the upper end holding portion exhibits a normally open state. One end of the spring is locked to a spring positioning pin (14) provided on the bottom plate portion, and the other end is locked to a spring positioning hole (24) provided on the movable holding piece. The plate holding tool having the open / closed holding state according to claim 1. The movable holding piece is characterized in that the length of the rear portion from the pivotal portion to the trailing edge is longer than the length of the front portion from the pivotal portion to the front edge, according to claim 1 or 2. A plate holding tool having the described opening / closing holding state. The third aspect of the present invention, wherein the movable holding piece has a blind hole (25) on any of the upper surface (40), the bottom surface, the upper surface, and the bottom surface of the rear portion from the pivotal portion to the trailing edge. A plate holding tool that has an open / closed holding state.

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