JP3039082U - Stopper device - Google Patents

Abstract

(57) Abstract: To provide a stopper device which does not hinder the processing of the work when the thickness of the work is small. A stopper device (10) provided on a support base (1) for supporting a work (2) and preventing movement of the work (2).
0), which is the groove (10) formed on the upper surface of the support base (1).
And the stopper body (3) that is partially accommodated in the groove (10) and contacts the work (2), and the groove (10) of the stopper body (3)
Blocking means (4) for blocking movement of the stopper body (3), and the height of the uppermost edge at the contact portion with the workpiece (2) in the stopper body (3) is higher than the height of other parts To be.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a stopper device, and more particularly to a stopper device that is provided on a support base that supports a work and that blocks the movement of the supported work.

[0002]

[Prior art]

 12 is an explanatory view of a conventional stopper device, and FIG. 13 is a cross-sectional view of the stopper device of FIG. 12 taken along the line XIII-XIII. The conventional stopper device shown in the same figure has a groove portion (10) formed on the upper surface of a substantially horizontal thick plate-shaped support base (1) for supporting a work (2) and a groove portion (10) on the upper surface. ), A stopper body (9a) placed across each of the outer portions in the width direction, and a blocking means (9b) for blocking the movement of the stopper body (9a) with respect to the groove (10), It is a configuration including.

The stopper body (9a) is provided with an extension (90) extending from the main body in the shape of a rectangular parallelepiped to the work (2) side. The extension (90) has an entire lower surface provided on the same surface as the lower surface of the main body, and is an upper surface that is an inclined surface that gradually descends from the upper edge of the main body on the work (2) side. It is configured to have. A long hole (91) that is long in the direction along the groove (10) is formed through the main body in the vertical direction.

The blocking means (9b) is a bolt (93) which is inserted downward in the elongated hole (91) so as to prevent the bolt (93) from screwing. A block piece (92) housed in the groove (10) is provided. The groove portion (10) is provided with a pair of flange portions (11) and (11) projecting from the respective upper end portions of both side walls thereof in a direction in which they approach each other and extending in a direction along the groove portion (10). Has been. The block piece (92) is arranged at a position below the flange portions (11, 11).

In this structure, when the bolt (93) is tightened, each of the flange portions (11) and (11) is pinched by the stopper body (9a) and the block piece (92). The frictional resistance due to the clamping pressure prevents the stopper body (9a) from moving with respect to the groove (10). In this state, the extension part (90) contacts the work (2). By this contact, the work (2) is positioned, and in this positioned state, the work (2) is subjected to cutting work or the like.

[0006]

[Problems to be solved by the device]

 However, the entire stopper body (9a) is placed on the upper surface of the support base (1), and the extension (90) at the lower end of the stopper body (9a) faces the work (2). Since they come into contact with each other, the height of the stopper body (9a) from the upper surface increases. Therefore, when the thickness of the work (2) is small, the cutting blade or the like is likely to come into contact with the stopper body (9a) during the cutting or the like on the work (2), which makes the cutting or the like difficult.

An object of the invention of claim 1 is to provide a stopper device which does not hinder the processing of the work when the thickness of the work is small.

[0008]

[Means for Solving the Problems]

 The problem-solving means of the invention of claim 1 is a stopper device provided on a support table for supporting a work and for preventing movement of the supported work, wherein a support surface of the work on the support table is provided. It has a formed groove portion and an abutting portion that is partially accommodated in the groove portion and abuts on the work, and the height of the uppermost edge of the abutting portion is equal to or higher than the height of other portions. A stopper body, and a blocking means for blocking the movement of the stopper body with respect to the groove portion ”.

In this structure, the contact portion of the stopper body contacts the work. Then, the blocking means blocks the movement of the stopper body with respect to the groove. Therefore, the movement of the work is blocked by the stopper body and the blocking means. A part of the stopper body is housed in the groove portion, and the height of the uppermost edge of the contact portion is equal to or higher than the height of other portions.

Here, as in the invention of claim 2, “the blocking means includes a base member fixed in the housed state with respect to the groove portion, and the stopper body is held by the base member and The contact portion may include a movable member that moves to the work side as the contact portion moves downward. ” In this structure, the movable member is held by the base member which is fixed in the groove portion in the housed state. Then, when the contact portion moves to the work side as it moves downward, the movable member contacts the work. This contact prevents the movement of the work.

According to a third aspect of the present invention, “the movable member includes a block body rotatably supported with respect to the base member in a posture along the groove, and In addition, a holding means for holding at an arbitrary rotation position within the range is provided. ”, The rotation of the block body causes the contact portion to move to the work side along with the downward movement. It will be done. By this movement, the block body comes into contact with the work. Then, since the holding means holds the rotatable block body at an arbitrary rotation position within the rotation range of the block body, the abutment is maintained and the movement of the workpiece is prevented. The blocked state is maintained.

According to a fourth aspect of the present invention, “the base member includes a fulcrum portion with which the lower end portion of the block body abuts so as to be rotatable”, with respect to the fulcrum portion, The lower end of the block body comes into contact with the block body, so that the block body is rotatably supported with respect to the base member. According to a fifth aspect of the present invention, "the block body includes a through hole penetrating toward the base member, and the holding means is screwed into the base member while being inserted into the through hole. And a urging means for urging the block body to the upper side by tightening the block body, and the urging means for urging the block body to the upper side. Then, when the bolt is tightened, the block body moves downward, and when the bolt is loosened, the biasing force moves the block body upward. Therefore, the rotation position of the block body is arbitrarily adjusted by the bolt and the biasing means, and the block body is held at the adjusted rotation position.

According to a sixth aspect of the present invention, “the cross-sectional shape of the groove portion has a shape such that the lower side portion is wider than the upper side portion, and the base member has an inner shape with respect to the main body portion. A fixing bolt that is screwed so as to penetrate toward one side, and the main body portion is raised by the tightening of the fixing bolt to come into contact with the component surface of the groove portion. When the fixing bolt is further tightened in the state where it is in contact with the bottom surface of the groove, the main body moves up and finally contacts the constituent surface of the groove. In the abutting state, the base member is fixed to the groove portion due to the friction resistance between the main body portion and the constituent surface and the friction resistance between the bolt and the bottom surface of the groove portion. .

[0014]

[Effect of the invention]

 As described above, in the invention of claim 1, since the height of the uppermost edge of the abutting portion of the stopper body that abuts the work is equal to or higher than the height of other portions, the uppermost edge is The height of the stopper body from the support base can be kept low as compared with the conventional one in which the height of the edge is lower than that of other portions. Therefore, even if the thickness of the work is small, the stopper body does not hinder the work of the work.

Further, since the stopper body is partially accommodated in the groove, even if the height of the uppermost edge is equal to or higher than the height of other portions, the entire stopper body is above the upper surface of the support base. The strength of the stopper body is improved as compared with the thin one located at the upper side. Therefore, the positioning state of the work by the stopper device is stabilized. In the invention of claim 2, the movable member held by the base member fixed to the groove portion is configured to move to the work side as the contact portion moves downward, The contact portion can be in a state of being pressed against the work. Therefore, this stopper device can be used as a clamp device for holding the work in the direction along the groove.

According to a fourth aspect of the present invention, the block body is rotatably supported with respect to the base member by the contact of the lower end portion of the block body with the fulcrum portion of the base member. Therefore, the structure for supporting is simplified as compared with the case where the block body is supported by the shaft. Moreover, the strength of the support is increased. According to the invention of claim 6, the main body portion is raised and abuts on the constituent surface of the groove portion when the fixing bolt is tightened. Therefore, the main body portion is maintained in a state in which the main body portion does not come out upward from the groove portion. To be done. Therefore, in the non-tightened state, the careless escape of the base member from the groove is suppressed.

[0017]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. [First Embodiment] FIG. 1 is a plan view of a stopper device (100) according to a first embodiment of the present invention, and FIG. 2 is a sectional view taken along line II-II of the stopper device (100) of FIG. 3 is a sectional view taken along line III-III of the stopper device (100) of FIG.

FIG. 4 is a plan view of the main body portion (4 a) of the base member (4) that constitutes each of the stoppers (A) and (A) of FIG. 1, and FIG. It is a side view of 4a). 6 is a plan view of the block body (3) constituting each of the stoppers (A) and (A) of FIG. 1, and FIG. 7 is a side view of the block body (3) of FIG. As shown in FIGS. 1 to 3, the stopper device (100) has a pair of groove portions (10) and (10) formed on the upper surface of a support base (1) that supports a work (2), and these groove portions. (10) It is a configuration including four stoppers (A) and (A) attached to each of (10) one by one.

[Regarding the Configuration of Each Part] * Support base (1) * The support base (1) is formed in a rectangular shape in plan view and has a horizontal accuracy as shown in FIGS. It is a thick metal plate having a good upper surface and is fixed to a frame (not shown) so that the upper surface is horizontal.

On the upper surface of the support base (1), a pair of linear groove portions (10) (10) extending in the longitudinal direction and parallel to each other are formed. Each of these groove parts (10) (10) is connected to the upper half part (10a) in a certain range below the upper surface and to the lower side of the upper half part (10a) and the upper half part (10a). It consists of a lower half (10b), which is wider than the lower half. The upper half portion (10a) is formed by a pair of mutually opposing parallel side walls that hang down from the upper surface, and the distance between the opposing side walls is set to be constant along the longitudinal direction. . Further, the lower half portion (10b) has a horizontal bottom surface (102), a pair of mutually parallel side walls following the bottom surface (102), and a bottom surface (102 ) And the top surfaces (101) and (101) that face each other in parallel.

* Stopper (A) * Each of the above stoppers (A) and (A) is fixed to the groove portion (10) in a housed state, and a base member (4) and the base member (4). A block body (3) housed in the groove (10) while leaving a part of the block body rotatably supported with respect to the block body, and a holding mechanism (5) for holding the block body (3) at an arbitrary rotating position. ), And is configured to include.

Hereinafter, each part of each stopper (A) will be described. * Base member (4) * As shown in Fig. 1 to Fig. 5, the base member (4) has a main body (4a) and a fixing bolt (4b) screwed to the main body (4a). ), And the structure which comprises. The main body part (4a) includes a base body (40) made of a metal plate having a substantially constant thickness formed in a substantially rectangular shape in a plan view, and one end portion in the longitudinal direction of the base body (40). It is configured to include a rectangular parallelepiped first projecting portion (41) projecting from the upper surface and a second projecting portion (43) projecting from the upper surface of the other end.

The base body (40) is housed in the lower half portion (10b), and both end portions in the width direction in plan view have the bottom surface (102) and the top surface (101) (101). ) Has been inserted between. Further, the first projecting portion (41) and the second projecting portion (43) are arranged so as to be positioned below the upper half portion (10a) in the housed state. Then, a screw hole (42) penetrating in the vertical direction from the first protrusion (41) to the base body (40) is formed, and a fixing bolt (4b) described later is provided in the screw hole (42). Are screwed together. Further, the corner portion formed by the end portion of the first protruding portion (41) on the second protruding portion (43) side and the base body (40) rotatably supports the block body (3) described later. It becomes the fulcrum part (40a).

The second projecting portion (43) has a configuration in which the upper surface thereof is an inclined flat surface that gradually decreases toward the first projecting portion (41) side. Has a circular recess (44) recessed downward from the upper surface. The main body portion (4a) is formed with a screw hole portion (45) which is recessed downward from the central portion of the recessed portion (44) and opened below the main body portion (4a). The screw hole portion (45) is arranged in an inclined posture such that its axis is substantially perpendicular to the upper surface of the second projecting portion (43).

The fixing bolt (4b) is set to have substantially the same length as the screw hole (42), and has a male screw formed over the entire outer peripheral surface. Further, the fixing bolt (4b) is provided with a recess (42a) which is recessed downward from the middle of the upper end surface thereof. The peripheral surface of the recess (42a) is formed in a hexagonal shape corresponding to a hexagonal wrench. * Block body (3) * The above block body (3) has a rectangular shape that is long in the direction along the groove (10) in plan view, as shown in FIGS. 1 to 3, 6, and 7. In addition, it has a substantially parallelogram shape in a side view. In the block body (3), one of the pair of acute-angled end portions in the side view (the first end portion (30a)) is at the highest position and the other (the second end portion (30b)). Are arranged in a tilted position at the lowest position. The second end portion (30b) is in contact with the fulcrum portion (40a). In this state, since the second end portion (30b) has an acute angle, the block body (3) is rotatable within a predetermined range. Furthermore, the first end portion (30a) and the vicinity thereof are projected upward from the upper surface of the support base (1). The first end portion (30a) serves as a contact portion that contacts the work (2).

Then, in the block body (3), at a position deviated to the first end portion (30a) side in the direction along the groove portion (10), in a direction substantially perpendicular to the upper and lower surfaces of the block body (3). A through hole (3a) penetrating therethrough is formed. The through-hole (3a) includes a large-diameter hole portion (31) arranged in a certain range from the upper surface of the block body (3) and a small-diameter hole portion arranged below the large-diameter hole portion and opened below the block body (3). (33) and a boundary end surface (32) connecting the large diameter hole portion (31) and the small diameter hole portion (33). The boundary end face (32) is formed in a shape that is part of a spherical surface that is recessed downward from the lower end peripheral edge of the large diameter hole portion (31).

* Holding mechanism (5) * The above holding mechanism (5) is a bolt that is inserted into the through hole (3a) and screwed into the screw hole portion (45) of the main body portion (4a). (5a) and a spring (5b) externally fitted to the bolt (5a) and arranged between the block body (3) and the main body portion (4a). The bolt (5a) is housed in the large-diameter hole portion (31) of the through hole (3a) in a retracted state and engages with the boundary end face (32) with a head portion (51), and this head portion (51). The screw shaft portion (52) is inserted into the small diameter hole portion (33) coaxially with the lower end surface of the portion (51) and screwed into the screw hole portion (45). The head (51) has a recess (51a) recessed from the upper end surface thereof. The peripheral surface of the recess (51a) is a hexagonal peripheral surface corresponding to a hexagonal wrench.

The head portion (51) is accommodated in the large diameter hole portion (31) with a margin, and the screw shaft portion (52) is accommodated in the small diameter hole portion (33). It is housed. Due to these margins, the block body (3) can be rotated downward when the bolt (5a) is tightened. Further, between the portion of the head portion (51) on the outer peripheral side of the screw shaft portion (52) and the boundary end surface (32), an annular body ( 30) is interposed. The upper end surface of the ring-shaped body (30) is formed so as to contact the head (51) over the entire circumference, and the lower end surface of the ring-shaped body (30) corresponds to the boundary end surface (32). It is formed in a partial shape of a spherical surface. The outer diameter of the annular body (30) is set to a size that allows the annular body (30) to rotate within a predetermined range along the boundary end face (32).

By the annular body (30), even if the relative angle between the block body (3) and the bolt (5a) is changed when the block body (3) is rotated downward, the boundary with the head (51) is generated. The engagement state with the end face (32) is maintained over the entire circumference. The upper end of the spring (5b) is in contact with the outer peripheral side of the small diameter hole (33) in the lower surface of the block body (3), and the lower end is in contact with the bottom surface of the recess (44). They are arranged so that they touch each other. Then, the spring (5b) is set to a size which is compressed by the block body (3) and the base member (4) in the rotation range of the block body (3). As a result, the block body (3) is always urged upwards at any rotation position within the rotation range.

[Use of Stopper Device (100)] Next, a case where the above stopper device (100) is used when cutting the workpiece (2) will be described. The work (2) is a metal plate that has a rectangular shape in plan view and has a substantially constant thickness. During the cutting process, the work (2) is placed on the upper surface of the support (1) so that the pair of short sides of the work (2) in a plan view are in a posture perpendicular to each of the grooves (10) (10). 2) is placed.

In this placement, each of the pair of stoppers (A) (A) located outside one of the short sides is previously tightened with the fixing bolts (4b) (4b) to secure the groove ( 10) Fix it to each of (10). The fixed position of the pair of stoppers (A) and (A) is such that, when the stoppers (A) and (A) are placed, the pair of stoppers (A) is fixed to the first end surface (21) that constitutes one of the short sides. The block bodies (3) and (3) of (A) are set at positions where they come into contact with each other.

By contacting the block bodies (3) and (3) with the first end surface (21), the work (2) is positioned in the direction along the groove (10). When tightening the fixing bolt (4b), the fixing bolt (4b) is rotated by rotating the hexagonal wrench fitted in the recess (42a). By this rotation, the fixing bolt (4b) projects from the lower surface of the main body portion (4a) and contacts the bottom surface (102). Then, when the tightening is continued, the main body (4a) moves upward (relatively) with respect to the fixing bolt (4b), and finally the base body (40) of the main body (4a) is moved to the above-mentioned ceiling. It abuts against each of the surfaces (101) (101). In this contact state, the groove portion (10) is caused by the frictional resistance between the fixing bolt (4b) and the bottom surface (102) and the frictional resistance between the base body (40) and each of the top surfaces (101) and (101). On the other hand, the base member (4) is fixed.

In this way, each of the pair of stoppers (A) (A) on the side of the first end face (21) is fixed to each of the groove portions (10) (10). After positioning the work (2) by the stoppers (A) (A) on the side of the first end face (21), the second end face (on the side opposite to the first end face (21) of the work (2) ( Each of the pair of stoppers (A) (A) facing the surface 22) is moved toward the second end surface (22) side and brought into contact with the second end surface (22). In this state, each of the first end portions (30a) (30a) of the block bodies (3) (3) is in contact with the second end surface (22).

In this abutting state, each of the fixing bolts (4b), (4b) of the stoppers (A) (A) on the second end face (22) side is tightened. By this tightening, as described above, each of the stoppers (A) (A) is fixed to each of the groove portions (10) (10). After this fixing, each of the bolts (5a) (5a) of the stopper (A) (A) is tightened. As a result, each of the block bodies (3) and (3) pivots downward, though slightly, against the biasing force of the springs (5b) and (5b). By this rotation, each of the first end portions (30a) (30a) of the block bodies (3) (3) descends and moves to the second end face (22) side. By this movement, each of the block bodies (3) and (3) is brought into a state of being pressed against the second end surface (22).

The pair of stoppers (A) and (A) on the second end face (22) side are provided with the groove portions (10) (with the block bodies (3) and (3) separated from the second end face (22). After fixing to each of 10), each of the block bodies (3) and (3) may be brought into contact with the second end face (22) in a pressurized state. In this case, tightening each of the bolts (5a) (5a) causes each of the block bodies (3) (3) to resist the biasing force of the springs (5b) (5b) in the same manner as above. Rotate downward. By this rotation, each of the first end portions (30a) (30a) is pressed against the second end surface (22).

In any of these procedures, by pressing the block bodies (3) and (3) against the second end face (22), as shown in FIG. From the outside of the end faces (21) and (22), a clamped state is obtained in which the stoppers (A) and (A) are sandwiched respectively. This completes the setting of the work (2). In this set state, cutting work is performed on the work (2), for example, cutting with a constant depth is performed on the upper surface of the work (2).

The first embodiment has the following effects. . The height of the uppermost edge of each of the first ends (30a) (30a) abutting against the work (2) in the block body (3) (3) is equal to or higher than the height of other parts. Therefore, the height of the block bodies (3) and (3) is suppressed to be lower than that of the conventional one in which the height of the uppermost edge is lower than that of other portions. Therefore, even if the thickness of the work (2) is small, each of the block bodies (3) and (3) does not hinder the cutting process.

[0038] Since part of each of the block bodies (3) and (3) is housed in each of the groove portions (10) and (10), the height of the uppermost edge is equal to or higher than the height of other portions. The strength of each of the block bodies (3) and (3) is improved as compared with the thin one in which the whole is located above the upper surface of the support base (1). Therefore, the clamp state of the work (2) by each of the stoppers (A) (A) is stable.

. By rotating the block bodies (3) and (3) downward, each of the first end portions (30a) and (30a) moves to the work (2) side and descends. Therefore, the two-dot chain line in FIG. Thus, the height of each of the first ends 30a, 30a can be adjusted. Therefore, the height of the block bodies (3) and (3) can be suppressed to a low level even by the above adjustment, and the above effect can be further improved. . By contacting the second ends (30b) and (30b) of the block bodies (3) and (3) with the above (40a) and (40a), respectively, the block bodies (3) and (3) respectively become main parts. (4a) Since it is rotatably supported with respect to each of (4a), compared with the one in which each of the block bodies (3) and (3) is supported via a shaft, the structure for the above support is provided. Has been simplified. Moreover, the strength of the support is increased.

[0040] Since each of the main body portions (4a) (4a) is set so as not to come out upward from each of the groove portions (10) (10), each groove portion (10) (of the base member (4) (4) ( Unintentional escape from each of 10) is suppressed. In the first embodiment, the stopper device (100) corresponds to the “stopper device” described in the claims, and the support base (1) described in the claims. The work (2) corresponds to the "support base" and the "work" described in the claims.

Each of the above-mentioned groove portions (10), (10) corresponds to the “groove portion” described in the appended claims. The block body (3) corresponds to the "block body", "movable member" and "stopper body" described in the claims. Further, the main body part (4a) corresponds to the "main body part" described in the claims, and the fixing bolt (4b) corresponds to the "fixing bolt" described in the claims. The base member (4) including the main body portion (4a) and the fixing bolt (4b) corresponds to the "base member" and the "blocking means" described in the claims.

Further, the bolt (5a) corresponds to the “bolt” described in the claims, and the spring (5b) corresponds to the “biasing means” described in the claims. Correspondingly, the holding mechanism (5) provided with the bolt (5a) and the spring (5b) corresponds to the "holding means" described in the claims. [Second Embodiment] FIG. 8 is a side view of a stopper device (200) according to a second embodiment of the present invention, and FIG. 9 shows a stopper (B) of the stopper device (200) of FIG. It is a top view.

As shown in the figure, the stopper device (200) includes a groove portion (10) similar to that of the first embodiment described above, and a stopper (B) fitted in the groove portion (10). It is a composition to have. The stopper (B) includes a base member (8b) fixed in the groove (10) in a housed state, and a stopper body (8a) connected to the base member (8b). It is a composition.

The base member (8b) includes a pair of projecting pieces (83) (83) fitted between the left and right top surfaces (101) (101) and the bottom surface (102), and a vertical direction. The main body (80) has a threaded hole (82) penetrating therethrough, and a fixing bolt (81) screwed into the threaded hole (82). In this case, when the fixing bolt (81) is tightened, its lower end abuts the bottom surface (102), and the rising of the main body (80) causes each of the protruding pieces (83) (83) to move to the top surface ( The base member (8b) is fixed to the groove portion (10) by the frictional resistance force in the contacted portions because it abuts against each of the (101) and (101).

The stopper body (8a) is configured to include a convex portion (84) protruding from the upper end of the main body portion toward the work (2) side, and the upper surface of the stopper body (8a) is It is formed on a horizontal surface. The connecting portion of the stopper body (8a) and the base member (8b) is configured such that the stopper body (8a) and the base member (8b) are slidably fitted, and the sliding direction is the stopper body. (8a) is set so as to move to the work (2) side as it descends. Specifically, the stopper body (8a) has a dovetail groove (86) formed along the sliding direction, and the base member (8b) has a dovetail groove (86) formed along the sliding direction. ) Is provided with an engagement body (85) having a cross-sectional shape that is fitted in a state of being retained.

Further, the connecting portion is provided with a hole portion (87) penetrating along the sliding direction. The hole (87) is formed so that its cross section is located over the stopper body (8a) and the base member (8b), and a bolt (not shown) is screwed into the hole (87). Have been combined. This bolt engages with the portion of the hole (87) on the base member (8b) side so that the bolt drops when tightened, and the stopper body (8a) drops when tightened. Thus, the hole (87) is engaged with the stopper body (8a) side. The stopper device (200) is used similarly to the stopper device (100) of the first embodiment.

In this case, when the bolt is tightened, the stopper body (8a) is lowered. By this descent, the convex portion (84) comes into contact with the lower end portion of the work (2) under pressure. In this abutting state, since the base member (8b) is fixed to the groove (10), the movement of the work (2) is blocked by the stopper device (200).

The following effects are obtained in the second embodiment. . Since the height of the uppermost edge of the tip of the convex portion (84) that comes into contact with the work (2) in the stopper body (8a) is the same as the height of other parts, the stopper body (8a) The height can be kept lower than the conventional one. Therefore, even if the thickness of the work (2) is small, the stopper body (8a) does not hinder the cutting process.

.. Since the stopper body (8a) is partially housed in the groove (10), the strength of the stopper body (8a) is ensured. Therefore, the positioning of the work (2) by the stopper (B) is stable. . By the turning operation of the bolt, the stopper body (8a) moves to the work (2) side and descends, so that the height of the stopper body (8a) can be adjusted. Therefore, even by the above adjustment, the height of the block bodies (3) (3) can be kept low.

.. Since the base member (8b) is set so as not to come out upward from the groove portion (10), the careless escape of the base member (8b) from the groove portion (10) is suppressed. In the second embodiment, the stopper device (200) corresponds to the “stopper device” described in the claims, and the stopper body (8a) described in the claims. It corresponds to "movable member" and "stopper body".

Further, the main body portion (80) corresponds to the “main body portion” described in the claims, and the fixing bolt (81) described above “fixes” in the claims. The base member (8b) corresponding to the `` bolt '' and including the main body portion (80) and the fixing bolt (81) is the "base member" and the "blocking means" described in the scope of the aforementioned patent application. Equivalent to. [Third Embodiment] FIG. 10 is a plan view of a stopper device (300) according to a third embodiment of the present invention, and FIG. 11 is a XI-XI sectional view of the stopper device (300) of FIG. is there.

As shown in the figure, the stopper device (300) has a groove (10) similar to that of the first embodiment, a part of which is accommodated in the groove (10) and the work (2). A stopper having a contact portion that abuts against the stopper stopper (C). The stopper (C) is composed of a stopper body (7a) formed in a block shape and having a screw hole (72) penetrating in the vertical direction, and a fixing bolt (7b) screwed into the screw hole (72). , Is provided. The stopper body (7a) is provided with a pair of protruding pieces (71) (71) protruding from both sides of the main body and fitted between the top surface (101) (101) and the bottom surface (102). It is equipped. In addition, the lower surface of the stopper body (7a) on the work (2) side of the protruding pieces (71) (71) is formed into a curved surface that gradually rises toward the work (2) side. The upper surface of (7a) is formed in a horizontal plane.

In this case, the fixing bolt (7b) is tightened while the stopper body (7a) is in contact with the work (2). By this tightening, the lower end of the fixing bolt (7b) abuts the bottom surface (102), and as the stopper body (7a) rises, each of the protruding pieces (71) (71) becomes the top surface (101) (101). Since they come into contact with each other, the stopper body (7a) is fixed to the groove (10) by the frictional resistance force at the contacted portions. In this fixed state, the movement of the work (2) is blocked.

In the third embodiment, since the height of the uppermost edge of the abutting portion of the stopper body (7a) with respect to the work (2) is the same as the height of other portions, the stopper body (7a) The height of can be kept lower than the conventional one. Therefore, even if the thickness of the work (2) is small, the stopper body (7a) does not hinder the cutting process. Further, since the stopper body (7a) is partially housed in the groove (10), the strength of the stopper body (7a) is secured. Therefore, the positioning of the work (2) by the stopper (C) is stable.

In the third embodiment, the stopper device (300) corresponds to the “stopper device” described in the claims, and the stopper body (7a) corresponds to the claims. It corresponds to the "stopper body" described. Further, the fixing bolt (7b) and the protruding pieces (71) (71) correspond to the "blocking means" described in the claims. [Other embodiments]. In the above-described Embodiments 2 and 3, the upper surfaces of the stopper bodies (7a) and (8a) may be gradually lowered as they are separated from the work (2). Even in this case, since the height of the uppermost edge at the contact portion with the work (2) is equal to or higher than the height of other portions, the same effect as described above can be obtained.

.. In any of the above-mentioned embodiments, the groove portion (10) has the above-mentioned upper half portion (10a) and lower half portion (10b), but this has a constant width in the vertical direction. It may be configured as follows. In this case, it is possible to employ a configuration including a pair of movable pieces (not shown) that move from the main body portions (4a) (80) or the stopper body (7a) to both sides by operation. In this structure, each of the movable pieces is pressed against each of both side walls of the groove portion (10) by the movement, and the frictional resistance force causes the main body portions (4a) (80) or the stopper body (7a). Are fixed to the groove (10).

.. The above-mentioned “blocking means” may be one that fixes the stopper body to the upper surface of the support base. . In the above embodiment, the work (2) is clamped, but it may be carried out for positioning the work (2) without the clamp.

[Brief description of the drawings]

FIG. 1 is a plan view of a stopper device (100) according to a first embodiment of the present invention.

FIG. 2 is a sectional view of the stopper device (100) of FIG. 1 taken along the line II-II.

FIG. 3: III-III of the stopper device (100) of FIG.
Sectional view

FIG. 4 is a plan view of the main body portion (4a) of the base member (4) that constitutes each of the stoppers (A) and (A) of FIG. 1.

5 is a side view of the main body (4a) of FIG.

6 is a plan view of a block body (3) constituting each of the stoppers (A) and (A) of FIG.

FIG. 7 is a side view of the block body (3) of FIG.

FIG. 8 is a side view of the stopper device (200) according to the second embodiment of the present invention.

FIG. 9 is a stopper (B) of the stopper device (200) of FIG.
Top view of

FIG. 10 is a plan view of a stopper device (300) according to a third embodiment of the present invention.

FIG. 11: XI-XI of the stopper device (300) of FIG.
Sectional view

FIG. 12 is an explanatory view of a conventional stopper device.

FIG. 13: XIII-XII of the stopper device of FIG.
I cross section

[Explanation of symbols]

 (100) ・ ・ ・ Stopper device (1) ・ ・ ・ Supporting base (2) ・ ・ ・ Workpiece (10) ・ ・ ・ Groove (3) ・ ・ ・ Block body (4) ・ ・ ・ Base member (5) ・..Holding mechanism

Claims (6)

[Utility model registration claims] 1. A stopper device provided on a support table for supporting a work and for preventing movement of the supported work, comprising: a groove portion formed on a support surface of the work on the support table; A stopper body, a part of which is accommodated in the groove portion, has a contact portion for contacting the work, and a height of an uppermost edge of the contact portion is equal to or higher than a height of another portion; A stopper device for preventing the movement of the groove with respect to the groove portion. 2. The blocking means includes a base member fixed to the groove portion in a housed state, the stopper body is held by the base member, and the abutting portion is movable downward. The stopper device according to claim 1, further comprising a movable member that moves to the work side together. 3. The movable member includes a block body rotatably supported with respect to the base member in a posture along the groove portion, and the block body has an arbitrary rotation position within its rotation range. 3. A holding means for holding by
Stopper device described in. 4. The stopper device according to claim 3, wherein the base member includes a fulcrum portion with which a lower end portion of the block body is rotatably abutted. 5. The block body includes a through hole penetrating toward the base member, and the holding means is screwed into the base member in a state of being inserted into the through hole and tightened by tightening the block. The stopper device according to claim 3 or 4, further comprising: a bolt having a size such that a body moves downward, and a biasing unit that biases the block body upward. 6. The cross-sectional shape of the groove has a shape such that a lower side portion thereof is wider than an upper side portion thereof, and the base member penetrates the main body portion inwardly. The stopper device according to any one of claims 2 to 5, further comprising a fixing bolt that is screwed into the stopper, the tightening of the fixing bolt causes the main body portion to move upward and come into contact with the constituent surface of the groove portion.