JP6285516B2 - Grabber - Google Patents

Description

  The present invention relates to a gripper for gripping an object.

  Conventionally, as a gripping device used for gripping dust falling on the ground, an object gripping part composed of one gripping arm and the other gripping arm that open and close each other is provided on one end side of the handle, and on the other end side of the handle. It is known that the gripping arm moves in the closing direction when the provided opening / closing lever is gripped, and the gripping arm moves in the opening direction when the opening / closing lever is released (see, for example, Patent Document 1). .

Japanese Utility Model Publication No. 3-3966

  However, in the gripping device described in Patent Document 1, it is necessary to connect one gripping arm and the opening / closing lever with a wire so that the gripping arm moves in response to the operation of the opening / closing lever. When the grip is released, it is necessary to provide a return spring in order to move the gripping arm in the opening direction, and there is a problem that the structure becomes complicated.

  The present invention has been made in view of these problems, and an object thereof is to provide a gripper capable of realizing an operation for opening and closing a grip arm with a simple structure.

  The gripper of the first invention, which has been made to achieve the above object, can rotate between a clamping position for clamping an object and a clamping release position for releasing the clamping of the object around the first rotation axis. A pair of first and second clamping members connected to each other, and a biasing member that biases the first and second clamping members so that the first and second clamping members are in the clamping position. And is attached to the second clamping member so as to be disposed on the side opposite to the side where the object is clamped by the first clamping member and the second clamping member across the first rotation shaft, and is gripped by the user. A first gripping member, and a tip portion on the side of the first clamping member that sandwiches the object is a first sandwiching tip portion, and a tip portion of the second clamping member that sandwiches the object is a second sandwiching tip portion. The distance between the first rotating shaft and the first clamping tip is the first rotating shaft and the second Wherein longer than the distance between the lifting tip.

  In the gripper configured as described above, the pair of first and second clamping members includes a clamping position where the object is clamped around the first rotation axis, and a clamping release position where the clamping of the object is released. The biasing member biases the first clamping member and the second clamping member so that the first clamping member and the second clamping member are in the clamping position.

  For this reason, first, by applying a force against the urging force of the urging member to the first clamping member and the second clamping member, the first clamping member and the second clamping member are rotated to reach the clamping release position. Furthermore, after the object is disposed between the first clamping member and the second clamping member, the force is not applied to the first clamping member and the second clamping member, so that the biasing force of the biasing member can The first clamping member and the second clamping member rotate so as to be in the clamping position, and the object can be clamped by the first clamping member and the second clamping member.

  The first gripping member gripped by the user is arranged on the opposite side to the side where the object is clamped by the first clamping member and the second clamping member with the first rotation shaft interposed therebetween. 2 Attached to the clamping member, the distance between the first rotation shaft and the first clamping tip is longer than the distance between the first rotation shaft and the second clamping tip.

  For this reason, when an object placed on a certain surface (hereinafter referred to as a placement surface) is clamped by the gripper, first, the user grasps the first gripping member above the placement surface. The user holds the first clamping member and the second clamping member in the clamping release position with the first clamping tip of the first clamping member in contact with the mounting surface. By applying a force against the urging force of the urging member to the second clamping member, the second clamping member rotates so as to be in the clamping release position, and the first clamping member and the second clamping member are released from clamping. Can be in position.

  Thereafter, after the object on the mounting surface is disposed between the first clamping member and the second clamping member, the second clamping member is configured to prevent the force from acting on the second clamping member, so that the second biasing force is applied to the second clamping member. The clamping member rotates so as to be in the clamping position, and the object can be clamped by the first clamping member and the second clamping member.

  As described above, according to the gripper configured as described above, the distance between the first rotating shaft and the first sandwiching tip is longer than the distance between the first rotating shaft and the second sandwiching tip. In addition, with a simple structure in which the first gripping member is attached to the second clamping member, the user operates the gripper so that the first and second clamping members rotate between the clamping position and the clamping release position. It is possible to do.

  Further, the gripping device of the second invention is a pair of mutually connected in a rotatable manner between a clamping position for clamping an object and a clamping release position for releasing the clamping of the object, with the first rotation axis as a center. A first clamping member, a second clamping member, a biasing member that biases the first clamping member and the second clamping member so that the first clamping member and the second clamping member are in the clamping position, and a first rotation shaft. It is attached to either the first clamping member or the second clamping member so as to be disposed on the opposite side to the side where the object is clamped by the first clamping member and the second clamping member. The second gripping member to be gripped, disposed between the first sandwiching member and the second sandwiching member, and centered on a second rotating shaft provided on the second sandwiching member on the side facing the first sandwiching member. The first clamping member and the second clamping member so as to be in the clamping release position. (2) The span between the first sandwiching member and the second sandwiching member is released so that the spanning position spanned between the two sandwiching members and the first sandwiching member and the second sandwiching member are in the sandwiching position. And a hanging member that rotates between the hanging release positions.

  In the gripping device configured as described above, the first clamping member and the second clamping member are arranged around the second rotation shaft provided on the side of the second clamping member that faces the first clamping member. Rotate between a spanning position spanned between and a spanning release position at which spanning is released.

  For this reason, when an object placed on a certain surface (hereinafter referred to as a placement surface) is clamped by the gripper, first, a spanning member is interposed between the first clamping member and the second clamping member. , So that the first clamping member and the second clamping member are in the clamping release position. Thereafter, the user holds the second holding member above the placement surface, and presses the suspension member against the object so that the suspension member is positioned above the object on the placement surface. As a result, the spanning member rotates about the second rotation axis, and the spanning between the first sandwiching member and the second sandwiching member is released. At this time, the object on the placement surface is disposed between the first clamping member and the second clamping member. Therefore, the urging force of the urging member rotates so that the first and second clamping members are in the clamping position, and the object can be clamped by the first clamping member and the second clamping member.

  As described above, according to the gripping device configured as described above, the spanning member that rotates about the second rotation shaft provided on the second clamping member on the side facing the first clamping member is attached. With this simple structure, the user can operate the gripper so that the first and second clamping members rotate between the clamping position and the clamping release position.

It is a perspective view of the gripper 1 of 1st Embodiment. It is a figure explaining the procedure for gripping an object with the gripper. It is a perspective view of the gripper 51 of 2nd Embodiment. It is a figure explaining the procedure for gripping an object with the gripper 51. FIG.

(First embodiment)
A first embodiment of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the gripper 1 has a spring clamp 20 attached to the tip of a rod-shaped handle 10 gripped by a user.

The spring clamp 20 includes a pair of clamping members 21 and 22 and a spring member 23.
First, the clamping members 21 and 22 are integrally molded using, for example, a synthetic resin as a material, and are disposed so as to face each other. The clamping members 21 and 22 are provided with clamping regions 211 and 221 for clamping an object on one end side along the longitudinal direction D1 of the rod-shaped handle 10 and at the other end side along the longitudinal direction D1. Connection areas 212 and 222 are provided for connecting 21 and the clamping member 22 to each other. The handle 10 is attached to the connection region 222 of the holding member 22.

  Further, on the side facing the clamping member 21 in the coupling region 222 of the clamping member 22, a ridge 32 having a cylindrical projection 31 serving as the rotation axis AR1 is provided. The cylindrical axis of the cylindrical protrusion 31 (that is, the rotation axis AR1) is arranged so as to be parallel to the opposing surfaces of the clamping members 21 and 22.

Further, a ridge 42 having a bearing hole 41 into which the cylindrical projection 31 is inserted is provided on the side of the coupling region 212 of the clamping member 21 facing the clamping member 22.
Then, by inserting the protrusion 31 into the bearing hole 41, the clamping member 21 and the clamping member 22 are centered on the rotation axis AR1, and the clamping area 211 of the clamping member 21 and the clamping area 221 of the clamping member 22 are mutually connected. They are connected to each other so as to be rotatable between a position where they are in contact (hereinafter referred to as contact positions) and a position where they are not in contact with each other (hereinafter referred to as non-contact positions).

  Further, the length L1 of the clamping region 211 of the clamping member 21 is longer than the length L2 of the clamping region 221 of the clamping member 22. For this reason, when the clamping member 21 and the clamping member 22 are arranged so as to be in the contact position, the one end edge 213 of the clamping member 21 is more along the longitudinal direction D1 than the one end edge 223 of the clamping member 22. Protruding state.

  Next, the spring member 23 is disposed between the coupling region 212 of the clamping member 21 and the coupling region 222 of the clamping member 22 that are arranged so as to face each other, and the clamping member 21 and the clamping member 22 are in contact with each other. The connection region 212 of the clamping member 21 and the connection region 222 of the clamping member 22 are biased so as to be positioned.

  In the gripper 1 configured as described above, the handle 10 gripped by the user is sandwiched between the rotation member AR1 and the side on which the object is sandwiched by the sandwiching members 21 and 22 (that is, the sandwiching regions 211 and 221). Are attached to the clamping member 22 so as to be arranged on the opposite side, and the distance between the rotation axis AR1 and the one end edge 213 is longer than the distance between the rotation axis AR1 and the one end edge 223.

  Therefore, when the object OB1 (see FIG. 2A) placed on a certain surface PL1 (hereinafter referred to as the placement surface PL1) is gripped by the gripper 1, the user of the gripper 1 It is recommended to perform the operations described in (1).

  First, as shown in FIG. 2A, the user grips the handle 10 above the placement surface PL1, and contacts one end edge 213 of the clamping member 21 with the placement surface PL1 in the vicinity of the object OB1. Let And as shown in FIG.2 (b), the user resists the urging | biasing force of the spring member 23 with respect to the clamping member 22 via the handle | steering-wheel 10 so that the clamping members 21 and 22 may be in a non-contact position. Make it work.

  Thereafter, as shown in FIG. 2 (c), after the object OB1 on the placement surface PL1 is disposed between the sandwiching member 21 and the sandwiching member 22, by preventing the force from acting on the sandwiching member 22, The clamping member 22 is rotated toward the contact position by the urging force of the spring member 23, and the object OB1 can be clamped by the clamping member 21 and the clamping member 22 as shown in FIG.

  As described above, according to the gripper 1, the distance between the rotation axis AR <b> 1 and the one end edge 213 is longer than the distance between the rotation axis AR <b> 1 and the one end edge 223, and the handle 10 is the clamping member 22. With the simple structure of being attached to the gripper 1, the user holds the gripper 1 so that the clamping members 21 and 22 rotate between a clamping position for clamping the object OB1 and a clamping release position for releasing the clamping of the object OB1. Can be operated.

  In the embodiment described above, the rotation axis AR1 is the first rotation axis in the present invention, the positions of the clamping members 21 and 22 shown in FIG. 2 (d) are the clamping positions in the present invention, and FIGS. 2 (b) and 2 (c). The positions of the clamping members 21 and 22 shown are the clamping release positions in the present invention, the clamping member 21 is the first clamping member in the present invention, the clamping member 22 is the second clamping member in the present invention, and the spring member 23 is the biasing member in the present invention. The handle 10 is the first gripping member in the present invention, the one end edge 213 is the first clamping tip in the present invention, and the one end 223 is the second clamping tip in the present invention.

(Second Embodiment)
A second embodiment of the present invention will be described below with reference to the drawings.
As shown in FIG. 3, the gripper 51 is obtained by attaching a spring clamp 70 to the tip of a rod-shaped handle 60 gripped by a user.

The spring clamp 70 includes a pair of clamping members 71 and 72, a spring member 73, and a spanning member 74.
First, the clamping members 71 and 72 are integrally formed using, for example, a synthetic resin as a material, and are disposed so as to face each other. The clamping members 71 and 72 are provided with clamping regions 711 and 721 for clamping an object on one end side along the longitudinal direction D51 of the rod-shaped handle 60, and at the other end side along the longitudinal direction D51. Connection regions 712 and 722 for connecting 71 and the clamping member 72 to each other are provided. The handle 60 is attached to the clamping member 72.

  In addition, a semicircular ridge 81 and two semicircular ridges are arranged to face each other on the side of the coupling region 722 of the clamping member 72 facing the clamping member 71. A recess 82 is provided. In addition, the bottom part of the recessed part 82 is formed in circular arc shape.

  Furthermore, the semicircular ridge 91 and two semicircular ridges are arranged opposite to each other on the side facing the clamping member 72 in the connection region 712 of the clamping member 71. A recess 92 is provided. In addition, the bottom part of the recessed part 92 is formed in circular arc shape.

  And by accommodating the protrusion 91 in the recessed part 82 and accommodating the protrusion 81 in the recessed part 92, the clamping member 71 and the clamping member 72 are comprised by the protrusion 81,91 and the recessed part 82,92. A position where the sandwiching region 711 of the sandwiching member 71 and the sandwiching region 721 of the sandwiching member 72 are in contact with each other about the rotation axis AR51, and a state in which they are not in contact with each other. To each other (hereinafter referred to as a non-contact position) so as to be rotatable.

  The spring member 73 is formed in a C shape. The C-shaped spring member 73 fixes one end of the spring member 73 on the opposite side of the coupling region 712 of the clamping member 71 from the side facing the clamping member 72, and in the coupling region 722 of the clamping member 72. The other end of the spring member 73 is fixed to the side opposite to the side facing the clamping member 71, so that the clamping members 71 and 72 facing each other are sandwiched and attached to the clamping members 71 and 72. As a result, the spring member 73 biases the clamping members 71 and 72 so that the clamping member 71 and the clamping member 72 are in the contact position.

  The spanning member 74 is rotatable between the sandwiching member 71 and the sandwiching member 72 facing each other around the rotation axis AR52 installed on the side facing the sandwiching member 72 in the sandwiching region 711 of the sandwiching member 71. One end is a long member attached to the clamping member 71. Accordingly, the spanning member 74 is configured so that the sandwiching region 711 of the sandwiching member 71 and the sandwiching region 721 of the sandwiching member 72 are not in contact with each other. (See FIG. 3).

  In the gripper 51 configured as described above, the spanning member 74 is located between the sandwiching member 71 and the sandwiching member 72 around the rotation axis AR52 provided on the sandwiching member 71 on the side facing the sandwiching member 72. Rotate between a hanging position where the hanger is hung and a hanger releasing position where the hanger is released.

  Therefore, when the object OB2 (see FIG. 4A) placed on a certain surface PL2 (hereinafter referred to as the placement surface PL2) is gripped by the gripper 51, the user of the gripper 51 The operation described below may be performed.

  First, the spanning member 74 is spanned between the pinching member 71 and the pinching member 72 so that the pinching member 71 and the pinching member 72 are in the pinching release position. Thereafter, as shown in FIG. 4 (a), the user holds the handle 60 above the placement surface PL2, and the overhanging member 74 is positioned above the object OB2 on the placement surface PL2. The spanning member 74 is pressed against the object OB2. As a result, the spanning member 74 rotates about the rotation axis AR52, and the spanning between the pinching member 71 and the pinching member 72 is released. At this time, the object OB2 on the placement surface PL2 is disposed between the sandwiching member 71 and the sandwiching member 72. For this reason, the clamping members 71 and 72 are rotated by the urging force of the spring member 73 so as to be in the clamping position, and the object OB2 is clamped by the clamping member 71 and the clamping member 72 as shown in FIG. Can do.

  As described above, according to the gripper 51, the clamping member 71 is attached by the simple structure in which the spanning member 74 that rotates about the rotation axis AR52 provided on the side of the clamping member 71 facing the clamping member 72 is attached. The user can operate the gripper 51 so that the clamping members 71 and 72 rotate between the position and the clamping release position.

  In the embodiment described above, the rotation axis AR51 is the first rotation axis in the present invention, the positions of the clamping members 71 and 72 shown in FIG. 4B are the clamping positions in the present invention, and the clamping member 71 shown in FIG. , 72 is the clamping release position in the present invention, the clamping member 72 is the first clamping member in the present invention, the clamping member 71 is the second clamping member in the present invention, the spring member 73 is the biasing member in the present invention, and the handle 60 is The second gripping member and the rotation axis AR52 in the present invention are the second rotation shaft in the present invention.

As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, As long as it belongs to the technical scope of this invention, a various form can be taken.
For example, in the second embodiment, the grip 60 is attached to the clamping member 72, but the handle 60 may be attached to the clamping member 71.

  In the second embodiment, the hanging member 74 that rotates about the rotation axis AR52 provided on the holding member 71 is shown. However, the hanging member 74 is provided on the holding member 72. You may make it rotate centering | focusing on the provided rotating shaft.

  DESCRIPTION OF SYMBOLS 1,51 ... Gripper 10,60 ... Handle, 20,70 ... Spring clamp, 21,22,71,72 ... Holding member, 23,73 ... Spring member, 74 ... Hanging member, 211,221,711, 721 ... clamping area, 212, 222, 712, 722 ... connection area, 213, 223 ... one end edge, AR1, AR51, AR52 ... rotating shaft

Claims (1)

A pair of first and second clamping members that are coupled to each other so as to be rotatable between a clamping position for clamping the object and a clamping release position for releasing the clamping of the object around the first rotation axis, ,
A biasing member that biases the first clamping member and the second clamping member so that the first clamping member and the second clamping member are in the clamping position;
The first clamping member and the second clamping member are arranged so as to be disposed on the opposite side of the clamping side where the object is clamped by the first clamping member and the second clamping member across the first rotation shaft. A gripping member attached to any one of the above and gripped by the user;
The first sandwiching member is disposed between the first sandwiching member and the second sandwiching member and is centered on a second rotating shaft provided on the second sandwiching member on the side facing the first sandwiching member. A spanning position spanned between the first clamping member and the second clamping member so that the member and the second clamping member are in the clamping release position, and the first clamping member and the second clamping member A spanning member that rotates between a spanning release position in which spanning between the first pinching member and the second pinching member is released so that the pinch position is the pinching position ,
The object is sandwiched between the clamping side end of the first clamping member and the clamping side end of the second clamping member,
The spanning member is between the first clamping member and the second clamping member, in the vicinity of the clamping side end of the first clamping member, and at the clamping side end of the second clamping member A gripping device characterized by being arranged in the vicinity of a section .

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