Toggle clamp

Abstract

To provide a toggle clamp which is not required to adjust the length of a bolt for pressing workpiece to be fixed even if the thickness of the workpiece changes.SOLUTION: A toggle clamp includes a clamp arm moving downward according to operation of an operation lever, a pressing part which is provided at the tip of the clamp arm, moves downward by the self weight and comes in contact with workpiece, a protrusion cam which is provided on the clamp arm, is slid in a direction approaching the pressing part and comes in contact with the pressing part, and a bolt for protrusion which presses the protrusion cam toward the pressing part and fixes the protrusion cam and the pressing part in the contact state, wherein the pressing part has a first inclination surface contacting the protrusion cam and a first axis in a direction at which the pressing part moves relative to the clamp arm, and a distance between the lower end of the first inclination surface and the first axis is longer than a distance between the upper end of the first inclination surface and the first axis.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a toggle clamp.

Background Art

[0002] When fixing a workpiece during machining or assembly of the workpiece, a toggle clamp is used (see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a toggle clamp that presses and fixes the workpiece downward, every time the thickness of the workpiece to be fixed changes, it is necessary to adjust the length of the bolt that presses the workpiece.

Means for Solving the Problems

[0005] The present disclosure can be realized in the following forms. According to one embodiment of the present disclosure, a toggle clamp is provided. The toggle clamp includes a clamp arm that moves downward in response to an operation of an operation lever, a pressing portion provided at a tip of the clamp arm, which moves downward with respect to the clamp arm by its own weight and contacts a workpiece, a protruding cam provided on the clamp arm, which slides in a direction approaching the pressing portion and contacts the pressing portion, and has an inclined surface at a lower end in a direction opposite to the direction in which the pressing portion approaches, and a protruding bolt provided vertically below the protruding cam, the upper end of which contacts the inclined surface to press the protruding cam toward the pressing portion and fix the protruding cam and the pressing portion in a contacting state. The pressing portion has a first inclined surface that contacts the protruding cam and a first axis along a direction in which the pressing portion moves with respect to the clamp arm, and a distance between a lower end of the first inclined surface and the first axis is longer than a distance between an upper end of the first inclined surface and the first axis.

[0006] (1) According to one embodiment of the present disclosure, a toggle clamp is provided. The toggle clamp includes a clamp arm that moves downward in response to an operation of an operation lever, a pressing portion provided at a tip of the clamp arm that moves downward by its own weight and contacts a workpiece, a protruding cam provided on the clamp arm that slides in a direction approaching the pressing portion and contacts the pressing portion, and a protruding bolt that presses the protruding cam toward the pressing portion and fixes the protruding cam and the pressing portion in a contacting state. The pressing portion has a first inclined surface that contacts the protruding cam and a first axis along a direction in which the pressing portion moves with respect to the clamp arm. A distance between a lower end of the first inclined surface and the first axis is longer than a distance between an upper end of the first inclined surface and the first axis. According to the toggle clamp of this embodiment, since the pressing portion moves downward by its own weight, even if the thickness of the workpiece is different, the position of the pressing portion is automatically adjusted in the process of fixing the workpiece. Therefore, when fixing workpieces of different thicknesses, it is not necessary to adjust the length of the bolt that presses the workpiece. (2) In the toggle clamp of the above embodiment, it may have a biasing portion that biases the pressing portion toward the workpiece. According to the toggle clamp of this embodiment, the pressing portion can be made to move more easily toward the workpiece than when the pressing portion moves in a direction toward the workpiece only by its own weight.

Brief Description of the Drawings

[0007]

Figure 1

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Mode for Carrying Out the Invention

[0008] A. First Embodiment: FIG. 1 is a perspective view of the toggle clamp 100. FIG. 2 is an explanatory diagram showing the schematic configuration of the toggle clamp 100. In FIGS. 1 and 2, arrows indicating the X, Y, and Z directions orthogonal to each other are shown. The X direction and the Y direction are directions parallel to the horizontal plane. The Z direction is a direction parallel to the vertical direction. The X, Y, and Z directions in FIGS. 1 and 2 indicate the same directions as the X, Y, and Z directions in other figures. When specifying the direction, the positive direction, which is the direction indicated by the arrow, is denoted as "+", and the negative direction, which is the direction opposite to the direction indicated by the arrow, is denoted as "-", and positive and negative signs are used in combination in the direction notation.

[0009] The toggle clamp 100 includes a base 10, a base member 20, a clamp arm 30, a pressing portion 40, a protruding cam 50, a protruding bolt 60, a link member 70, and an operation lever 80. The toggle clamp 100 fixes the work W on the base 10 by the pressing portion 40 provided at the tip of the clamp arm 30 pressing the work W downward. The work W has a plate shape and is formed of, for example, a metal such as iron. Note that the shape and material of the work W are not limited to this.

[0010] The base 10 is a plate-like member. The base member 20 is fixed to the upper surface of the base 10.

[0011] The base member 20 has a fixing portion 21 and a wall portion 22. The fixing portion 21 is a plate-like member and is fixed to the upper surface of the base 10. The wall portion 22 is provided on the upper surface of the fixing portion 21 perpendicular to the fixing portion 21. One end of the clamp arm 30 on the +X direction side is connected to the wall portion 22 by the first pin 111. The clamp arm 30 is provided rotatably in a plane perpendicular to the Y direction about the first pin 111. Also, one end of the link member 70 is connected to the wall portion 22 by the second pin 112. The link member 70 is provided rotatably in a plane perpendicular to the Y direction about the second pin 112.

[0012] The clamp arm 30 is formed of two plate-like members parallel to each other. One end of the clamp arm 30 on the +X direction side is connected to one end of the operation lever 80 on the -X direction side by the third pin 113. The clamp arm 30 is provided relatively rotatable with respect to the operation lever 80 in a plane perpendicular to the Y direction about the third pin 113.

[0013] The pressing portion 40 and the protruding cam 50 are provided between the two plate-like members of the clamp arm 30. Details of the pressing portion 40 and the protruding cam 50 will be described later.

[0014] The protruding bolt 60 is provided so as to protrude from the base 10 in the +Z direction. The protruding bolt 60 is fixed to the base 10 such that its upper end is located below the protruding cam 50.

[0015] The link member 70 is formed of two plate-like members parallel to each other. The other end of the link member 70 opposite to the one end connected to the wall portion 22 is connected to the operation lever 80 by the fourth pin 114. The link member 70 is provided relatively rotatable with respect to the operation lever 80 in a plane perpendicular to the Y direction about the fourth pin 114.

[0016] The operation lever 80 is connected to the clamp arm 30 by a third pin 113 so as to be positioned between two plate-like members of the clamp arm 30. Further, the operation lever 80 is connected to the link member 70 by a fourth pin 114 so as to be positioned between two plate-like members of the link member 70. The operation lever 80 has a cover 81. The cover 81 is attached to the operation lever 80 so as to cover an end portion of the operation lever 80 on the +X direction side.

[0017] The toggle mechanism is constituted by the clamp arm 30, the link member 70, and the operation lever 80. The clamp arm 30 moves upward and downward in response to the operation of the operation lever 80. When the operation lever 80 is lifted upward, as viewed from the -Y direction, the clamp arm 30 rotates clockwise about the first pin 111, and the link member 70 rotates clockwise about the second pin 112. As a result, the clamp arm 30 moves upward, and the pressing portion 40 moves away from the workpiece W. When the operation lever 80 is pushed downward, as viewed from the -Y direction, the clamp arm 30 rotates counterclockwise about the first pin 111, and the link member 70 rotates counterclockwise about the second pin 112. As a result, the clamp arm 30 moves downward, and the pressing portion 40 approaches the workpiece W. When the operation lever 80 is pushed downward and the pressing portion 40 comes into contact with the workpiece W, the workpiece W is fixed on the base 10. Note that the workpiece W may be fixed on a member other than the base 10.

[0018] The pressing portion 40 is provided at an end portion of the clamp arm 30 on the -X direction side. The pressing portion 40 has a first opening 41, a first inclined surface 42, and a first axis AX.

[0019] The first opening 41 is a hole provided so as to penetrate the pressing portion 40 in the Y direction. The pressing portion 40 is attached to the clamp arm 30 by the first bolt 121 and the second bolt 122 such that the longitudinal direction of the first opening 41 is substantially perpendicular to the longitudinal direction of the clamp arm 30. The first bolt 121 and the second bolt 122 are arranged side by side in a direction substantially perpendicular to the longitudinal direction of the clamp arm 30 and are fixed to the clamp arm 30 so as to penetrate the first opening 41 in the Y direction. Therefore, the pressing portion 40 is movable in a direction substantially perpendicular to the longitudinal direction of the clamp arm 30. The pressing portion 40 moves downward along a direction substantially perpendicular to the longitudinal direction of the clamp arm 30 due to its own weight. Hereinafter, among the directions substantially perpendicular to the longitudinal direction of the clamp arm 30, the downward direction is also referred to as the "direction toward the workpiece W". Note that the pressing portion 40 only needs to be provided so as to be movable in a direction substantially perpendicular to the longitudinal direction of the clamp arm 30, and it may be attached to the clamp arm 30 by members other than the first bolt 121 and the second bolt 122.

[0020] FIG. 3 is an enlarged view of the vicinity of the pressing portion 40 shown in FIG. 2. The first inclined surface 42 is formed on the outer surface of the pressing portion 40 on the +X direction side. The first inclined surface 42 is a surface that contacts the protruding cam 50. The first axis AX is an axis along the direction in which the pressing portion 40 moves with respect to the clamp arm 30, that is, a direction substantially perpendicular to the longitudinal direction of the clamp arm 30. The first axis AX penetrates the first opening 41 along the longitudinal direction of the first opening 41. The shortest distance between the lower end of the first inclined surface 42 and the first axis AX is longer than the shortest distance between the upper end of the first inclined surface 42 and the first axis AX. Here, the distance between the first inclined surface 42 and the first axis AX is the distance in the direction in which the protruding cam 50 slides, that is, the direction along the longitudinal direction of the clamp arm 30. The angle D formed by the first inclined surface 42 and the longitudinal direction of the clamp arm 30 shown in FIG. 3 is preferably in the range of 70° or more and 85° or less.

[0021] The protruding cam 50 is provided on the +X direction side of the pressing portion 40. As shown in FIGS. 1 and 2, the protruding cam 50 has a second opening 51, a second inclined surface 52, and a third inclined surface 53.

[0022] The second opening 51 is a hole provided so as to penetrate the protruding cam 50 in the Y direction. The protruding cam 50 is attached to the clamp arm 30 by a third bolt 123 and a fourth bolt 124 such that the longitudinal direction of the second opening 51 is substantially parallel to the longitudinal direction of the clamp arm 30. The third bolt 123 and the fourth bolt 124 are arranged in a direction substantially parallel to the longitudinal direction of the clamp arm 30 and are fixed to the clamp arm 30 so as to penetrate the second opening 51 in the Y direction. Therefore, the protruding cam 50 is slidable in a direction substantially parallel to the longitudinal direction of the clamp arm 30. Note that the protruding cam 50 only needs to be provided so as to be movable in a direction substantially parallel to the longitudinal direction of the clamp arm 30, and may be attached to the clamp arm 30 by members other than the third bolt 123 and the fourth bolt 124.

[0023] The second inclined surface 52 is formed on the outer surface on the -X direction side of the protruding cam 50. The second inclined surface 52 is a surface facing the first inclined surface 42 of the pressing portion 40. In the present embodiment, the second inclined surface 52 is inclined so as to be parallel to the first inclined surface 42. When the protruding cam 50 slides toward the pressing portion 40, the second inclined surface 52 contacts the first inclined surface 42.

[0024] The third inclined surface 53 is formed at the lower end on the +X direction side of the protruding cam 50. The third inclined surface 53 is a surface that contacts the protruding bolt 60 when the toggle clamp 100 fixes the workpiece W.

[0025] Figures 4 to 7 are diagrams for explaining the operation of fixing the work W of the toggle clamp 100. Hereinafter, with reference to Figures 4 to 7, the movement of each part of the toggle clamp 100 when the toggle clamp 100 fixes the work W will be described. Before the toggle clamp 100 fixes the work W, as shown in Figure 2, the work W, the pressing part 40, the protruding cam 50, and the protruding bolt 60 are not in contact with each other.

[0026] As shown in Figure 4, when the operation lever 80 is pushed down, the clamp arm 30 moves downward, and the lower end of the pressing part 40 comes into contact with the work W.

[0027] Next, as shown in Figure 5, when the operation lever 80 is pushed down further below the position shown in Figure 4, the clamp arm 30 moves further downward than the position shown in Figure 4. When the clamp arm 30 moves downward, the length of the portion of the pressing part 40 that protrudes below the clamp arm 30 becomes shorter. As the clamp arm 30 moves downward, the third inclined surface 53 of the protruding cam 50 comes into contact with the protruding bolt 60.

[0028] Next, as shown in Figure 6, when the operation lever 80 is pushed down further below the position shown in Figure 5, the clamp arm 30 moves further downward than the position shown in Figure 5. At this time, the length of the portion of the pressing part 40 that protrudes below the clamp arm 30 becomes shorter than the length shown in Figure 5. As the clamp arm 30 moves downward, the protruding cam 50 slides in the longitudinal direction of the clamp arm 30 so as to approach the pressing part 40 while maintaining the state of being in contact with the protruding bolt 60 at the third inclined surface 53.

[0029] Next, as shown in FIG. 7, when the operation lever 80 is pushed downward below the position shown in FIG. 6, the clamp arm 30 moves downward below the position shown in FIG. 6. At this time, the length of the portion of the pressing portion 40 that protrudes below the clamp arm 30 becomes shorter than the length shown in FIG. 6. As the clamp arm 30 moves downward, the protruding cam 50 approaches the pressing portion 40 from the position shown in FIG. 6, and the second inclined surface 52 of the protruding cam 50 contacts the first inclined surface 42 of the pressing portion 40. The protruding bolt 60 presses the protruding cam 50 toward the pressing portion 40 and fixes the protruding cam 50 and the pressing portion 40 in a contacting state. Therefore, at this time, the workpiece W contacts the pressing portion 40, the pressing portion 40 contacts the protruding cam 50, and the protruding cam 50 contacts the protruding bolt 60. As described above, with the pressing portion 40 in contact with the workpiece W, the pressing portion 40, the protruding cam 50, and the protruding bolt 60 are integrally fixed, whereby the workpiece W is fixed on the base 10.

[0030] FIG. 8 is a diagram for explaining a state in which the toggle clamp 100 fixes a workpiece W having a greater thickness than the workpiece W shown in FIG. 7. When the thickness of the workpiece W is large, compared with the case where the thickness of the workpiece W is small, in the state where the workpiece W is fixed on the base 10, the position in the Z direction where the pressing portion 40 is fixed becomes higher. Since the distance between the lower end of the first inclined surface 42 and the first axis AX is longer than the distance between the upper end of the first inclined surface 42 and the first axis AX, the distance that the protruding cam 50 moves toward the pressing portion 40 is smaller as the position of the pressing portion 40 in the Z direction is higher, that is, as the thickness of the workpiece W is greater. Therefore, when the operation lever 80 is pushed down and the clamp arm 30 moves downward, when the thickness of the workpiece W is large, the protruding cam 50 contacts the pressing portion 40 earlier than when the thickness of the workpiece W is small. Thus, when the thickness of the workpiece W is large, the workpiece W is fixed with the clamp arm 30 positioned above compared with the case where the thickness of the workpiece W is small. In the state where the workpiece W is fixed, the position on the third inclined surface 53 that contacts the protruding bolt 60 becomes closer to the pressing portion 40 as the thickness of the workpiece W is greater, and farther from the pressing portion 40 as the thickness of the workpiece W is smaller.

[0031] FIG. 9 is a diagram showing an example of the measurement result of the clamping force when the toggle clamp 100 fixes the work W. Here, the clamping force is the force with which the pressing portion 40 presses the work W downward in a state where the toggle clamp 100 fixes the work W. The clamping force is adjusted, for example, by changing the length of the protruding bolt 60 and adjusting the timing at which the protruding bolt 60 and the protruding cam 50 come into contact when the toggle clamp 100 fixes the work W. The horizontal axis of the graph shown in FIG. 9 indicates the thickness of the work W, and the vertical axis indicates the clamping force of the toggle clamp 100. FIG. 9 shows the clamping force when the work W formed of SUS304 is fixed using the toggle clamp 100 having a longitudinal length of the operation lever 80 of 45 mm. In the graph shown in FIG. 9, the clamping force is adjusted to be 50 N when the thickness of the work W is 1 mm. As shown in FIG. 9, the clamping force of the toggle clamp 100 is constant regardless of the thickness of the work W within the range shown in FIG. 9.

[0032] According to the toggle clamp 100 in the first embodiment described above, when the operation lever 80 is pushed downward, the clamp arm 30 moves downward. First, the pressing part 40 contacts the workpiece W. Next, with the protruding cam 50 and the protruding bolt 60 in contact, the protruding cam 50 slides toward the pressing part 40. Finally, with the protruding cam 50 and the pressing part 40 in contact, the protruding cam 50 and the pressing part 40 are fixed by the protruding bolt 60. In this way, the workpiece W is fixed by the toggle clamp 100. The position of the pressing part 40 in the Z direction in the state where the workpiece W is fixed varies depending on the thickness of the workpiece W to be fixed. The pressing part 40 is provided so as to be movable in a direction substantially perpendicular to the longitudinal direction of the clamp arm 30 and moves in the direction toward the workpiece W due to its own weight. Therefore, even if the user does not adjust the position of the pressing part 40, the position of the pressing part 40 is automatically adjusted during the process of fixing the workpiece W. Therefore, when fixing workpieces W with different thicknesses, it is possible to eliminate the need to adjust the length of the bolt for pressing the workpiece W. Also, even when fixing workpieces W with different thicknesses in a narrow space, the workpiece W can be fixed without adjusting the length of the bolt for pressing the workpiece W.

[0033] Further, the first inclined surface 42 of the pressing part 40 is inclined such that the distance between the lower end of the first inclined surface 42 and the first axis AX is longer than the distance between the upper end of the first inclined surface 42 and the first axis AX. The second inclined surface 52 of the protruding cam 50 that contacts the first inclined surface 42 is inclined so as to be parallel to the first inclined surface 42. Therefore, when fixed in a state where the second inclined surface 52 of the protruding cam 50 contacts the first inclined surface 42 of the pressing part 40, it is possible to suppress the pressing part 40 from moving in the direction opposite to the direction toward the workpiece W.

[0034] B. Second Embodiment: FIG. 10 is a perspective view of the toggle clamp 101 in the second embodiment. In the second embodiment, the toggle clamp 101 has a biasing portion 90 that biases the pressing portion 40 toward the workpiece W. In the second embodiment, the biasing portion 90 is a spring 91 provided in the first opening 41. The upper end of the spring 91 is fixed to the second bolt 122, and the lower end thereof is fixed to the bottom of the first opening 41. An elastic force of the spring 91 acts on the second bolt 122 and the pressing portion 40 in a direction to increase the distance between the second bolt 122 and the bottom of the first opening 41. The direction in which the elastic force of the spring 91 acts is a direction substantially perpendicular to the longitudinal direction of the clamp arm 30. The spring 91 biases the pressing portion 40 in a direction toward the workpiece W by applying an elastic force to the second bolt 122 and the pressing portion 40.

[0035] According to the toggle clamp 101 in the second embodiment described above, since the spring 91 biases the pressing portion 40 in a direction toward the workpiece W, the pressing portion 40 can be moved more easily in a direction toward the workpiece W than when the pressing portion 40 is moved in a direction toward the workpiece W only by its own weight. Therefore, the pressing portion 40 can easily bring the workpiece W into close contact with the base 10. Accordingly, in a state where the workpiece W and the base 10 are not in close contact, when the pressing portion 40 contacts the workpiece W and is fixed in a state where the protruding bolt 60 contacts the protruding cam 50 and the pressing portion 40, it is possible to suppress a gap from being generated between the workpiece W and the pressing portion 40 when the workpiece W and the base 10 are in close contact, and the workpiece W cannot be fixed on the base 10.

[0036] C. Third Embodiment: FIG. 11 is a perspective view of the toggle clamp 102 in the third embodiment. In the third embodiment, the toggle clamp 102 has a biasing portion 90 that biases the pressing portion 40 toward the workpiece W. In the third embodiment, the biasing portion 90 is a tension spring 92 provided on the outer surface of the clamp arm 30. In the third embodiment, the pressing portion 40 includes an upper bolt 46. The upper bolt 46 is provided at the upper end of the pressing portion 40 so as to penetrate the pressing portion 40 in the Y direction. The upper end of the tension spring 92 is fixed to the upper bolt 46, and the lower end thereof is fixed to the second bolt 122. An elastic force of the tension spring 92 acts on the upper bolt 46 and the second bolt 122 in a direction to reduce the distance between the upper bolt 46 and the second bolt 122. The direction in which the elastic force of the tension spring 92 acts is a direction substantially perpendicular to the longitudinal direction of the clamp arm 30. The tension spring 92 biases the pressing portion 40 in a direction toward the workpiece W by applying an elastic force to the upper bolt 46 and the second bolt 122.

[0037] According to the toggle clamp 102 in the third embodiment described above, since the tension spring 92 biases the pressing portion 40 in a direction toward the workpiece W, the pressing portion 40 can be moved more easily in a direction toward the workpiece W than when the pressing portion 40 is moved in a direction toward the workpiece W only by its own weight. Therefore, it is possible to easily bring the workpiece W into close contact with the base 10 by the pressing portion 40. Therefore, in a state where the workpiece W and the base 10 are not in close contact, the pressing portion 40 contacts the workpiece W, and in a state where the protruding cam 50 and the pressing portion 40 are in contact with each other by the protruding bolt 60 and fixed, a gap is generated between the workpiece W and the pressing portion 40 when the workpiece W and the base 10 are in close contact, and it is possible to suppress the workpiece W from being unable to be fixed on the base 10.

[0038] D. Other Embodiments: (D-1) In the second embodiment, the biasing portion 90 is a spring 91. In the third embodiment, the biasing portion 90 is a tension spring 92. In contrast, the biasing portion 90 may be an air cylinder. For example, in an air cylinder where the lower end of the cylinder is fixed to the second bolt 122 and the upper end of the piston moving inside the cylinder is fixed to the upper bolt 46, the pressing portion 40 may be biased in the direction toward the workpiece W as the piston moves in the direction toward the workpiece W.

[0039] (D-2) In the above embodiment, the protruding cam 50 includes a second inclined surface 52 that contacts the first inclined surface 42 of the pressing portion 40. In contrast, the protruding cam 50 may not include the second inclined surface 52. The surface of the protruding cam 50 that contacts the first inclined surface 42 may be, for example, a curved surface.

[0040] The present disclosure is not limited to the above-described embodiments, and can be realized in various configurations without departing from the gist thereof. For example, the technical features in the embodiments corresponding to the technical features in each form described in the summary of the invention can be appropriately replaced or combined in order to solve some or all of the above-described problems or to achieve some or all of the above-described effects. Further, if the technical feature is not described as essential in this specification, it can be appropriately deleted.

Description of Reference Numerals

[0041] 10... base, 20... base member, 21... fixing portion, 22... wall portion, 30... clamp arm, 40... PresserPart, 41... First opening, 42... First inclined surface, 46... Upper bolt, 50... Protruding cam, 51... Second opening, 52... Second inclined surface, 53... Third inclined surface, 60... Protruding bolt, 70... Link member, 80... Operating lever, 81... Cover, 90... Biasing part, 91... Spring, 92... Tensile spring, 100, 101, 102... Toggle clamp, 111... First pin, 112... Second pin, 113... Third pin, 114... Fourth pin, 121... First bolt, 122... Second bolt, 123... Third bolt, 124... Fourth bolt, AX... First axis, W... Workpiece

Claims

1. A toggle clamp, comprising: a clamp arm that moves downward in response to an operation of an operating lever; a pressing portion provided at a tip of the clamp arm, moving downward with respect to the clamp arm by its own weight and contacting a workpiece; a protruding cam provided on the clamp arm, sliding in a direction approaching the pressing portion, contacting the pressing portion, and having an inclined surface at a lower end in a direction opposite to the direction in which the pressing portion approaches; a protruding bolt provided vertically below the protruding cam, the upper end of which contacts the inclined surface to press the protruding cam toward the pressing portion and fix the protruding cam and the pressing portion in a contacting state; wherein the pressing portion has a first inclined surface that contacts the protruding cam; and a first axis along the direction in which the pressing portion moves with respect to the clamp arm; wherein a distance between a lower end of the first inclined surface and the first axis is longer than a distance between an upper end of the first inclined surface and the first axis; a toggle clamp.

2. The toggle clamp according to claim 1, further comprising: a biasing portion that biases the pressing portion toward the workpiece; a toggle clamp.

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