JP2018114250A - Tightly pressing device and wringing tool for mop or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tightly pressing device which can increase efficiency of tightly pressing an article to be tightly pressed between an oscillation tightly pressing body and a fixed tightly pressing body by pushing down a push-down part, and a wringing tool for mops or the like.SOLUTION: A tightly pressing device includes a bucket-like washing part A and a tightly pressing device P, and the tightly pressing device P includes an oscillation tightly pressing body S, a fixed tightly pressing body F, and push-down part D. The oscillation tightly pressing body S is supported by an oscillation arm body M to oscillate. Restoring and biasing force is applied to a base part of the oscillation arm body M by a torsion coil spring W. The push-down part D can move vertically, and is connected to a connecting position L provided between an oscillation shaft line Ma of the oscillation arm body M and the oscillation tightly pressing body S through a connection body E so that the oscillation tightly pressing body S is positioned in an original position T at an uppermost position and is positioned in a tightly pressing position U at a lowest position. The connecting position L in the oscillation arm body M is a position where a distance between the oscillation shaft line Ma and the connecting position L is approximately 89% of a distance between the oscillation shaft line Ma and a rotation shaft line of the oscillation tightly pressing body S.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a pinching device and a mop or the like for pinching a mop yarn after washing for squeezing or the like.

  In Japanese Utility Model Publication No. 6-37813, a roll is attached to a mouth edge of a water container in a spanning manner and is rotatably supported by a support shaft, and a swing member whose end is pivotally attached to the water container is also described above. A mop squeezer that is positioned at the mouth edge of the water container and is rotatably mounted on a support shaft, and the pair of rolls are arranged in parallel to each other, and the pair of rolls are pressed against each other by the swing of the swing member The water container 1 is filled with water, the mop used for cleaning is washed with the water, the mop is placed on the side of the fixed roll 2, and the swing arm 5 is swung by stepping down the operation arm 6. Then, the invention of a mop squeezer is described in which the movable roll 7 is brought into contact with the side surface of the mop, and the mop is held and pressurized by the fixed roll 2 and the movable roll 7 via the support shafts 4 and 9. .

  However, in a conventional mop squeezer of this type, particularly a relatively compact one, the operating arm 6 is stepped down to swing the swing arm 5, and the fixed roll 2 and the movable roll 7 are connected via the support shafts 4 and 9. If the force is applied forcefully, the stability of the mop squeezer may be impaired. If the emphasis is on stability, the overall size will be large. It led to becoming.

Japanese Utility Model Publication No. 6-37813

  The present invention provides a pinching device and a mop or the like that can increase the efficiency of pinching an object to be pinched between a fixed pinching body by a rocking pinching body by pressing a pressing portion. With the goal.

  The pinching device and the throttling device of the present invention can be expressed as follows.

(1) It has a swinging clamping body, a fixed clamping body, and a pressing part,
The swing pinching body is swingably supported by a swing arm body having a swing axis below one side in a predetermined horizontal direction,
The fixed clamping body is fixedly positioned on the other side in the predetermined horizontal direction,
The swinging pinching body can swing between an original position farthest from the fixed pressing body and a pressing position in contact with or close to the fixed pressing body,
The pressing portion is located below the fixed pinching body on the other side in the predetermined horizontal direction. When the pressing portion is in the upper position, the swinging pinching body is positioned in the original position, and the pressing portion is When in the lower position, the swinging pinching body is located at the pinching position via a predetermined connecting position and a connecting body provided between the swinging axis of the swinging arm body and the swinging pressing body. Connected,
When a pressing force is not applied to the pressing portion, the pressing device is applied with a restoring urging force that restores the swinging pressing body to the original position,
Since the distance between the swing axis and the position where the swing shaft is connected is 85 to 100% of the distance between the swing axis and the center position of the swing clamping body, A pinching device characterized by increasing the pinching efficiency of a pinching object.

  Since the connection position is a position sufficiently close to the swinging pinching body, the efficiency of pinching the object to be pinched between the swinging pinching body and the fixed pressing body is increased by pressing the pressing portion.

  (2) The angle between the line connecting the rocking axis and the center position of the rocking pinching body and the axis of the connecting body is 55 to 90 degrees when the rocking pinching body is in the pinching position (1 ) The clamping device as described.

  (3) The description in (1) or (2) above, wherein the center position of the original oscillating pinching body is equal to the oscillating axis of the oscillating arm body or located on the fixed nip body side in a predetermined horizontal direction. The clamping device.

  (4) The clamping apparatus according to the above (3), wherein the central angle from the vertically upward to the center position of the oscillating clamping body in the original position with respect to the oscillating axis is 0 degree to 20 degrees toward the fixed clamping body.

  (5) On the plane perpendicular to the swing axis, the swing of the trajectory of the center position of the swing pinch body and the line connecting the center position of the swing pinch body at the pinching position and the center position of the fixed clamp body The clamping apparatus according to any one of (1) to (4), wherein an angle formed by a tangent at a clamping position of the dynamic clamping body is 0 to 45 degrees.

  (6) The distance between the swing axis and the position linked to the swing axis is 88 to 98% of the distance between the swing axis and the center position of the swing clamping body. Clamping device.

  (7) Any of the above (1) to (6), wherein the oscillating clamping body and the stationary clamping body are roller-shaped bodies having a cylindrical outer peripheral surface portion and supported so as to be rotatable about an axis. The clamping apparatus of Claim 1.

(8) A cleaning unit having an opening that opens upward, and the clamping device according to any one of (1) to (7) above,
A mop or the like throttle device in which the original position of the rocking pinching body is located on one side in the predetermined horizontal direction in the opening or the vicinity thereof, and the fixed pinching body is located on the other side.

  (9) The squeezer for mops or the like according to the above (8), wherein at least a portion of the linking body that is farthest from the predetermined linking position is located outside the cleaning unit on the other side in the predetermined horizontal direction.

  (10) The mop according to (8) or (9) above, wherein the outer wall surface of the cleaning unit on the other side in the predetermined horizontal direction has a vertical groove-shaped recess, and the pressing portion is positioned in the groove-shaped recess. A diaphragm.

  According to the pinching device and the mop or the like of the present invention, since the connection position is sufficiently close to the swinging pinching body, the pressing pin is pressed to press the fixed pinching body with the swinging pinching body. The efficiency of pinching the object to be pinched during the period increases.

It is a perspective view of an aperture device such as a mop. It is a top view of iris diaphragms. It is a side view of a diaphragm such as a mop. FIG. It is a perspective view of a throttling device such as a mop in a pinched state. It is a top view of a throttle device such as a mop in a pinched state. It is a side view of a throttle device such as a mop in a pinched state. It is a side see-through | perspective figure of a throttle device, such as a mop in the clamping state.

  [1] An embodiment of the present invention will be described with reference to the drawings.

  The drawings relate to a mop squeezer according to an example of an embodiment of the squeezer for mop of the present invention provided with the clamping device of the present invention.

  The mop squeezer includes a cleaning unit A and a pinching device P. The pinching device P includes a swinging pinching body S, a fixed pinching body F, and a pressing unit D.

  (1) The cleaning unit A is a bucket-like shape that has a square shape in plan view and has a handle H. The cleaning unit A has an opening A1 that has a square shape in plan view that opens upward. The wiping part such as a mop yarn part (not shown) can be washed.

  (2) Oscillating clamp and fixed clamp

  (2-1) The swinging pinching body S and the fixed pinching body F are positioned in the vicinity of the opening A1 that opens above the cleaning unit A, respectively.

  Each of the oscillating pinching body S and the fixed pinching body F has a cylindrical outer peripheral surface portion provided with a large number of ridges parallel to the axial direction for each central angle such as the circumferential direction. It is a roller-like body supported so as to be able to turn around an axis in the horizontal direction.

  (2-2) The swing pinching body S is supported so as to be swingable by being supported by a pair of swing arm bodies M at both ends (left and right ends) of the shaft body S1.

  The pair of left and right oscillating arm bodies M are arranged around fixed shaft bodies M1 respectively below the back side in the front-rear direction (predetermined horizontal direction) of the bucket-shaped cleaning unit A, that is, in the horizontal direction of the cleaning unit A. It swings integrally around a common swing axis Ma via a swinging pinching body S. The pivot axes of the swinging clamping body S and the fixed clamping body F are both parallel to the swinging axis Ma of the swinging arm body M.

The fixed clamping body F is positioned on the front side in the front-rear direction (predetermined horizontal direction) of the cleaning unit A, and is supported at a fixed position with respect to the cleaning unit A at both ends (left and right ends) of the shaft body F1. .
a

  (2-3) The oscillating pinching body S has the original position T that is the rearmost position (that is, farthest from the fixed pinching body F) and the pinch that contacts the fixed pinching body F that is the foremost position. It can oscillate around the oscillation axis Ma between the pressure positions U. Since the rocking pinching body S descends from the original position T toward the pinching position U, the right and left predetermined edges A2 of the upper opening A1 of the cleaning unit A can rock the rocking pinching body S. In this way, it is inclined downward toward the front.

  The position (center position) of the pivot axis of the swinging pinching body S at the original position T is more forward (on the fixed pinching body F side) than the position of the swinging axis Ma of the swinging arm body M in the front-rear direction. To position. A center angle α (center angle in a plane perpendicular to the swing axis Ma) from the upper vertical position to the position of the swing axis of the swing clamp body S at the original position T around the swing axis Ma is a fixed clamp body. It is about 10 degrees toward the F side.

  A restoring urging force for restoring the oscillating pinching body S to the original position T is applied to each of the left and right oscillating arm bodies M by a torsion coil spring W (not shown except for FIGS. 1 and 3). ing.

  Both ends of the shaft body S1 of the rocking pinching body S at the original position T are received by receiving protrusions C (original position side receiving parts) provided at the left and right edges of the upper opening A1 of the cleaning part A, respectively. It is received forward and the swinging pinching body S is prevented from swinging backward (one side in the predetermined horizontal direction) from the original position T.

  The rocking pinching body S at the pinching position U is prevented from rocking forward (the other side in the predetermined horizontal direction) by being received by the fixed pinching body F.

  (3) Press part

  (3-1) The pressing portion D is positioned below the fixed pinching body F on the front side in the front-rear direction (predetermined horizontal direction) and has a pedal shape. The pressing portion D is located in a vertical groove-shaped recess A4 provided on the outer side (front side, that is, the outer wall surface portion) of the front wall portion A3 of the cleaning portion A.

  (3-2) The push-down portion D can move up and down, and when it is at the uppermost position, the rocking pinching body S is at the original position T, and when it is at the lowermost position, the rocking pinching body S is In each of the left and right swing arm bodies M so as to be positioned at the pinching position U, a link position L provided between the swing axis Ma and the swing pinching body S and a link composed of a pair of left and right rigid wires. It is connected through the body E.

  (3-3) In a state where the rocking pinching body S is located at the original position T and the pressing portion D is at the uppermost position, the swinging arm body M is linked by pressing the pedal-like pressing portion D. Pulled forward (the other side in the predetermined horizontal direction) via E and rotated in the forward direction, the oscillating pinching body S moves toward the pinching position U. As the swing arm M rotates in the forward direction, the torsion coil spring W undergoes torsional deformation in the direction opposite to the direction of the restoring biasing force, and the restoring biasing force is increased.

  In a state where the pressing portion D is pressed to the lowest position and the swinging pressure body S is positioned at the pressing position U, when the pressing of the pedal-shaped pressing portion D is released, the swing arm body M is Due to the restoring biasing force of the torsion coil spring W, the oscillating pinching body S moves toward the original position T.

  When the pressing force is not applied to the pedal-like pressing portion D in the state where the swinging pressing body S is positioned between the pressing position U or the original position T and the pressing position U, unless there are other obstacles or the like. The rocking pinching body S is restored to the original position T by the restoring biasing force applied by the torsion coil spring W to the base portions of the left and right rocking arm bodies M.

  In a state where the pressing portion D is at the uppermost position and the swinging pinching body S is located at the original position T, wiping the mop yarn portion of the mop from above through the swinging pinching body S and the fixed pinching body F By immersing the part in water or other liquid stored in the cleaning part A and moving the oscillating clamping body S to the clamping position U by pressing the pressing part D when the wiping part is pulled up after cleaning. The wiping part can be squeezed by pulling up the mop wiping part while pinching it between the rocking pinching body S and the fixed pinching body F.

  (3-4) The connection position L in the swing arm M is such that the distance between the swing axis Ma and the link position L is the rotation axis line between the swing axis Ma and the swing pin body S (the swing pin body S). The center position) is approximately 89% of the distance. Since the linkage position L is a position very close to the rocking pinching body S, the object to be pinched is pinched between the rocking pinching body S and the fixed pinching body F by pressing the pressing portion D. Increases efficiency.

  The angle β between the line connecting the swinging axis Ma and the center position of the swinging pinching body S and the axis of the connecting body E is about 60 degrees when the swinging pinching body S is in the pinching position U. In the state where the rocking pinching body S is at the original position T, it is about 70 degrees. In particular, in a state where the rocking pinching body S is in the pinching position U, the angle between the line connecting the rocking axis Ma and the center position of the rocking pinching body S and the axis line of the connecting body E is sufficiently large. By depressing the part D, the efficiency of clamping the object to be clamped between the swinging clamping body S and the fixed clamping body F is increased. Note that the portion of the linkage body E that is farthest from the linkage position L is located on the outside (front side) of the front wall portion A3 of the cleaning portion A, that is, outside the cleaning portion A, so It is easy to make such an angle between the line connecting the center position of the pressure body S and the connecting body E.

  On the plane perpendicular to the rocking axis Ma, the line connecting the center position of the rocking pinch body S and the center position of the fixed pinching body F at the pinching position U and the locus of the center position of the rocking pinch body S Of these, the angle γ formed by the tangent at the pinching position U of the rocking pinching body S is about 40 degrees.

  (4) With the configuration as described above, the height required for the pressing portion D to move downward in swinging the swinging clamping body S from the original position T to the clamping position U is made as small as possible. Thus, the height of the entire mop squeezer can be made as small as possible to increase the stability and make it compact, so that a sufficient clamping pressure can be obtained between the two clamping bodies.

  [2] Embodiments of the present invention will be further described, including forms other than those described above.

  The pinching device of the present invention includes an oscillating pinching member, a fixed pinching member, and a pressing unit, and the mop and the like throttling device of the present invention includes a cleaning unit and the pinching device of the present invention.

  (1) Oscillating clamp and fixed clamp

  (1-1) Each of the oscillating pinching body and the fixed pinching body has a cylindrical outer peripheral surface portion (including one having an uneven shape in the circumferential direction), and can rotate around an axis. A roller-like body supported in this manner is the most common, but is not necessarily limited thereto. For example, one or both of the oscillating clamping body and the stationary clamping body may be a non-rotating body that has a cylindrical outer peripheral surface portion (including one having a shape with irregularities in the circumferential direction) and does not rotate. Examples thereof include a roller-like body that is supported so that the portion can rotate around an axis of a non-circular shape (polygonal shape, shape having irregularities in the circumferential direction, etc.) or a non-rotating body that does not rotate.

  It is desirable that the rocking pinching body and the fixed pinching body have physical properties such as strength and rigidity sufficient to pinch the target article therebetween and have durability.

  (1-2) The swing pinching body is swingably supported by a swing arm body having a swing axis below one side in a predetermined horizontal direction. The swing arm body can be formed of, for example, a rigid material having sufficient durability.

  The fixed pinching body is fixedly positioned on the other side in the predetermined horizontal direction. The term “fixed” includes that the fixed clamping body is supported so that the position of the fixed clamping body can be shifted within a range that does not interfere with clamping the object between the swinging clamping body. it can.

  It is preferable that the oscillating clamp body and the fixed squeezing body are each along an axis that is parallel to the swing axis of the swing arm body. For example, a roller-like body as described above or a non-rotating body that does not rotate, and a center axis (or a rotating axis in the case of a rotating body) is parallel to the swing axis of the swing arm. be able to.

  The rocking arm body is supported by a pair of rocking arm bodies having a common rocking axis (preferably, the rocking arm bodies are integrated with each other, or both rocking arm bodies are Can be integrated with a rocking pinching body). When the rocking pinching body is along an axis that is parallel to the rocking axis of the rocking arm body, it is preferable to support the rocking pinching body at both ends in the axial direction.

  When the fixed pinching body is along an axis that is parallel to the swing axis of the swing arm, it is preferable to support the fixed presser at both ends in the axial direction.

  (1-3) The oscillating pinching body has an original position farthest from the fixed pressing member fixedly positioned on the other side in a predetermined horizontal direction, and a pressing position in contact with or close to the fixed pressing member. Can swing around the swing axis.

  For the swing arm body, a restoring biasing force (for example, a restoring biasing force by a torsion coil spring, a tension coil spring, a compression coil spring, or other elastic body) that restores the swing clamping body to the original position is directly applied. Or it is added indirectly.

  In order to prevent the swinging pinching body from swinging to one side in the predetermined horizontal direction from the original position, for example, the swinging pinching body or the swinging arm body is set at the original position or a position corresponding to the original position. It can have an in-situ side receiving part for receiving.

  Further, in order to prevent the swinging pinching body from swinging to the other side in the predetermined horizontal direction from the pinching position, for example, the swinging pinching body is received by the fixed pressing member, or A pinching position side receiving portion for receiving the rocking pinching body or the rocking arm body at the pinching position or a position corresponding to the pinching position can be provided.

  (2) Press part

  (2-1) The pressing portion is positioned below the fixed pinching body on the other side in the predetermined horizontal direction, and can be a stepped portion such as a pedal-like portion, but is not limited thereto.

  (2-2) The push-down part can move up and down (not limited to a vertical or linear shape), and when it is in the upper position (generally the uppermost position) Between the swing axis of the swing arm and the swing pinch so that the swing pinch is positioned at the pinch position when it is in the lower position (generally the lowest position). It connects with the predetermined | prescribed connection position provided through the connection body.

  The link body can be formed of, for example, a rigid material having sufficient durability.

  (2-3) In a state where the rocking pinching body is at the original position and the pressing portion is at the upper position, the swinging arm body is moved in the predetermined horizontal direction via the connecting body by pressing the pressing portion. Is pulled in the forward direction and rotated in the forward direction, and the oscillating pinching body moves toward the pinching position.

  In the state where the pressing part is pressed down and the swinging pressure body is located at the pressing position, when the pressing part is released, the swinging arm body is rotated in the reverse direction by the restoring biasing force. The oscillating pinching body moves toward the original position.

  If the pressing force is not applied to the pressing part in the state where the rocking pinching body is located between the pinching position or the original position and the pinching position, the rocking pinching body is the original unless there are other obstacles. Restore to position.

  (2-4) The distance between the predetermined connecting position provided between the swing axis of the swing arm body and the swing clamping body is the center position of the swing arm and the swing clamp body (with respect to the swing axis). The center position of the oscillating pinching body on the vertical surface, for example, when the oscillating pinching body is a roller-like body that can rotate around a rotation axis parallel to the oscillating axis. 85 to 100% (for example, 88 to 98%) of the distance of the movement axis). Since the connection position is a position sufficiently close to the swinging pinching body, the efficiency of pinching the object to be pinched between the swinging pinching body and the fixed pressing body is increased by pressing the pressing portion.

  The angle between the line connecting the rocking axis and the center position of the rocking pinching body and the axis of the connecting body is 55 to 90 degrees (eg 55 to 85 degrees), preferably when the rocking pinching body is in the pinching position. Can be set to 60 to 90 degrees (for example, 60 to 85 degrees), and 60 to 90 degrees (for example, 60 to 85 degrees), preferably 70 to 90 degrees in a state where the rocking pinch body is in its original position. (For example, 70 to 85 degrees). In particular, in the state where the rocking pinching body is in the pinching position, the angle between the line connecting the rocking axis and the center position of the rocking pinching body and the axis of the connecting body is sufficiently large (close to 90 degrees), By depressing the pressing portion, the efficiency of clamping the object to be clamped between the fixed clamping body and the swinging clamping body is increased.

  Further, in a plane perpendicular to the swinging axis, the swinging of the trajectory of the center position of the swinging pinching body and the line connecting the center position of the swinging pinching body at the pinching position and the center position of the fixed pressing member The angle formed by the tangent line at the clamping position of the clamping body can be 0 to 45 degrees in order to improve the clamping efficiency. In order to increase the pinching efficiency, it is preferably 0 to 30 degrees, more preferably 0 to 15 degrees, and still more preferably 0 to 10 degrees.

  (2-5) With such a configuration, the height required for the pressing portion to move downward in swinging the swinging pinching body from the original position to the pinching position is made as small as possible ( In other words, in order to achieve a sufficient clamping pressure between the two clamping bodies while reducing the height of the entire clamping apparatus as much as possible to improve stability and compactness, It is preferable that the center position of the oscillating clamping body at the position is equal to the oscillating axis of the oscillating arm body, or is positioned closer to the fixed clamping body than the oscillating axis. For example, the central angle (center angle in the plane perpendicular to the swing axis) from the upper vertical position to the center position of the swing clamp body in the original position around the swing axis is 0 degrees to 20 degrees toward the fixed clamp body ( Preferably, the angle can be 5 to 15 degrees toward the fixed pinching body. In this case, the distance between the predetermined connecting positions provided between the swing axis of the swing arm body and the swing pinching body increases the stability of the presser device by making the height of the entire pressing device as small as possible. In order to obtain a necessary clamping pressure between the two clamping bodies while reducing the size, the distance between the swing axis and the center position of the swinging clamping body can be set to 70 to 100%.

  (3) Cleaning section

  (3-1) The cleaning part has an opening part that opens upward, and can collect water to wash the wiping part such as the mop yarn part of the mop, for example, a bucket-shaped part that forms a square shape in plan view However, it is not limited to this.

  The material of the cleaning part is preferably a synthetic resin.

  (3-2) The height, width, and depth of the cleaning section can be adapted to the application. The height should be as low as possible to be compact and stable.

  (3-3) It is desirable that the oscillating pinching body and the fixed pinching body are provided so as to be positioned at or near the opening that opens above the cleaning unit.

  The fixed pinching body is provided so as to be fixedly positioned on the other side in the predetermined horizontal direction.

  The swing pinching body can be swingably supported by a swing arm body having a swing axis line supported by the cleaning unit below one side in a predetermined horizontal direction.

  The swing pinching body can be lowered as a whole from the original position toward the pinching position. In that case, for example, in order to allow the oscillating pinching body to oscillate, the cleaning unit has an edge in the direction perpendicular to the predetermined horizontal direction among the edges of the opening toward the other side in the predetermined horizontal direction. If the slit is provided on the outer wall of the cleaning unit and the swinging pressure body is supported by the swinging arm body through the slit, the slit is It may be inclined downward toward the other side in the predetermined horizontal direction so that the body can swing.

  The part most distant from the predetermined connection position among the connection bodies can be located outside the cleaning unit on the other side in the predetermined horizontal direction. Thereby, the angle between the line connecting the swing axis and the center position of the swing pinching body and the connecting body can be easily set to the angle as described above.

  The pressing portion may be located in a vertical groove-shaped concave portion provided on, for example, the outer wall surface portion of the cleaning portion, below the fixed pressing body on the other side in the predetermined horizontal direction.

  In the state where the pressing part is in the upper position and the swinging pinching body is in the original position, the wiping part such as the mop yarn part of the mop from above through the swinging pinching body and the fixed pressing member to the cleaning part When the wiping part is lifted after cleaning, the wiping part is moved to the clamping position by depressing the pressing part to move the oscillating clamping body to the clamping position. The wiping portion can be squeezed by pulling up while pinching between the fixed pinching bodies.

A Cleaning part A1 Upper opening part A2 Predetermined edge part A3 Front wall part A4 Groove-shaped recessed part C Receiving protrusion D Pushing part E Linking body F Fixed clamping body F1 Shaft body H Handle L Linking position M Swing arm body M1 fixation Shaft body Ma Swing axis P Clamping device S Swing pinching body S1 Shaft body T Original position U Clamping position W Coil spring

Claims (10)

It has a rocking pinching body, a fixed pinching body, and a pressing part,
The swing pinching body is swingably supported by a swing arm body having a swing axis below one side in a predetermined horizontal direction,
The fixed clamping body is fixedly positioned on the other side in the predetermined horizontal direction,
The swinging pinching body can swing between an original position farthest from the fixed pressing body and a pressing position in contact with or close to the fixed pressing body,

The pressing portion is located below the fixed pinching body on the other side in the predetermined horizontal direction. When the pressing portion is in the upper position, the swinging pinching body is positioned in the original position, and the pressing portion is When in the lower position, the swinging pinching body is located at the pinching position via a predetermined connecting position and a connecting body provided between the swinging axis of the swinging arm body and the swinging pressing body. Connected,
When a pressing force is not applied to the pressing portion, the pressing device is applied with a restoring urging force that restores the swinging pressing body to the original position,
Since the distance between the swing axis and the position where the swing shaft is connected is 85 to 100% of the distance between the swing axis and the center position of the swing clamping body, A pinching device characterized in that the pinching efficiency of a pinching object is increased.   The pin according to claim 1, wherein an angle between a line connecting the rocking axis and the center position of the rocking pinching body and an axis of the connecting body is 55 to 90 degrees when the rocking pinching body is in the pinching position. Pressure device.   3. The pinching device according to claim 1, wherein the center position of the swing pinching body at the original position is equal to the swing axis of the swing arm body or located on the fixed pinching body side in a predetermined horizontal direction.   4. The clamping apparatus according to claim 3, wherein a central angle from a vertical upper side to the center position of the oscillating clamping body in the original position with respect to the oscillating axis is 0 degrees to 20 degrees toward the fixed clamping body.   On the plane perpendicular to the swing axis, the swinging pinching of the trajectory of the center position of the swinging pinching body and the line connecting the center position of the swinging pinching body and the center position of the fixed pinching member at the pinching position The pinching device according to any one of claims 1 to 4, wherein an angle formed by a tangent at a pinching position of the body is 0 to 45 degrees.   The clamping apparatus according to any one of claims 1 to 5, wherein a distance between the oscillating axis and a position linked to the oscillating axis is 88 to 98% of a distance between the oscillating axis and the center position of the oscillating clamping body.   The rocking pinching body and the fixed pinching body are roller-like bodies that have a cylindrical outer peripheral surface portion and are supported so as to be rotatable around an axis. Pinching device. A cleaning unit having an opening that opens upward, and the clamping device according to any one of claims 1 to 7,
A mop or the like throttle device in which the original position of the rocking pinching body is located on one side in the predetermined horizontal direction in the opening or the vicinity thereof, and the fixed pinching body is located on the other side.   The mop-type diaphragm according to claim 8, wherein at least a portion of the linking body that is farthest from a predetermined linking position is located outside the cleaning unit on the other side in the predetermined horizontal direction.   10. The mop or the like restrictor according to claim 8 or 9, wherein the outer wall surface portion of the cleaning portion on the other side in the predetermined horizontal direction has a vertical groove-shaped concave portion, and the pressing portion is located in the groove-shaped concave portion.