JP5618841B2 - Temporary table clamp - Google Patents

Description

  The present invention relates to a temporary table clamp for connecting a rail rail temporary table to sleepers.

  For example, in the temporary table clamp described in Patent Document 1, a plate that contacts the side surface of the second clamp member is provided on the side surface of the first clamp member so that the first clamp member is relative to the second clamp member. The anti-rotation means which restricts rotational displacement is configured.

JP 2010-101132 A

  However, in the invention described in Patent Document 1, since the detent plate is provided on the side surface of the first clamp member, the temporary detent table clamp and the temporary detent table are arranged so as not to interfere with the detent plate and the temporary table. It is necessary to connect the temporary table, and the connection position of both is greatly limited.

  And, if the connection position of the temporary table clamp and the temporary table is greatly limited, it is difficult to handle different sizes of rails and various sites with the same temporary table clamp. Is likely to be.

  In view of the above-described points, an object of the present invention is to provide an anti-rotation means with a configuration different from the conventional one in a temporary table clamp that connects a temporary table to the sleeper so as to sandwich the sleeper.

The present invention, in order to achieve the above object, a temporary base for connecting the temporary base for temporarily placing the rails for rail, so as to sandwich the sleepers (S) of the rail sleepers (S) A first clamp member (2) that is in contact with one surface of the sleeper (S), and a sleeper (S) from the surface opposite to the first clamp member (2) across the sleeper (S) A bolt (4A) and a nut (4B) that connect the second clamp member (3), the first clamp member (2), and the second clamp member that are in contact with each other and generate a clamping force for sandwiching the sleepers (S). When the clamp force is generated on the bolt (4A) by rotating at least one of the bolt (4A) and the nut (4B), the first clamp member (2) is relative to the second clamp member (3). Non-rotating hand that restricts rotational displacement (2M, 4B), and the anti-rotation means includes a fitting hole (2M) provided in a portion of the first clamp member (2) facing the second clamp member (3), and a second clamp member (3) provided with a fitting protrusion (4B, 3F) protruding toward the first clamp member (2) so as to be fitted into the fitting hole (2M, 2P). Features.

Thereby, in this invention, while being able to comprise a rotation prevention means by the structure different from the past, the clamp for temporary placement tables which can respond to the sleepers (S) of various dimensions can be obtained.

Furthermore, in the present invention, the nut (4B) has a polygonal outer periphery and is joined to the second clamp member (3) to form a fitting protrusion, and further, a fitting hole ( 2M) is a hole having a surface parallel to at least two of the outer peripheral surfaces of the nut (4B).

Thereby, in this invention, a rotation prevention means can be comprised using a part of fastening member which generate | occur | produces clamping force .

  Incidentally, the reference numerals in parentheses for each of the above means are examples showing the correspondence with the specific means described in the embodiments described later, and the present invention is indicated by the reference numerals in the parentheses of the above respective means. It is not limited to specific means.

(A) is a top view of the temporary placing table 40, the connecting arm 30, and the temporary placing table clamp 1 according to the first embodiment of the present invention, and (b) is a side view of FIG. 1 (a). (A) is a front view of clamp 1 for temporary placing stands concerning a 1st embodiment of the present invention, and (b) is a side view of Drawing 2 (a). (A) is a front view of the upper side clamp member 2 of the clamp 1 for temporary placement tables concerning 1st Embodiment of this invention, (b) is a side view of Fig.3 (a). (A) is a front view of the lower clamp member 3 of the temporary table clamp 1 according to the first embodiment of the present invention, and (b) is a side view of FIG. 4 (a). (A) is a front view of clamp 1 for temporary placing stands concerning a 1st embodiment of the present invention, and (b) is a side view of Drawing 2 (a). (A)-(c) is a figure which shows the rocking | fluctuation state of the clamp 1 for temporary placement tables and the connection arm 30 which concern on embodiment of this invention. (A) And (b) is a figure which shows the connection pattern of the clamp 1 for temporary placement tables and the connection arm 30 which concern on embodiment of this invention. It is a front view of the clamp 1 for temporary placement tables which concerns on 2nd Embodiment of this invention.

  In the present embodiment, the present invention is applied to, for example, a temporary placing table described in Japanese Patent Application Laid-Open No. 2010-101132, and a temporary placing table clamp that connects to a sleeper. explain.

  The temporary table clamp (hereinafter abbreviated as a clamp) 1 according to this embodiment is detachably connected to the temporary table, but the connection method between the temporary table 40 and the clamp 1 is as follows. As shown in FIG. 1A and FIG. 1B, when indirectly connecting to the temporary table 40 via the connecting arm 30, and directly to the temporary table 40 without using the connecting arm 30. Any of the connection methods in the case of connecting to the network may be used.

(First embodiment)
1. Clamp structure 1.1. Schematic Structure As shown in FIGS. 2A and 2B, the clamp 1 according to the present embodiment includes an upper clamp member 2 that contacts one surface (the upper surface in the present embodiment) of the sleeper S, and the sleeper. It has the lower clamp member 3 which contacts the sleeper S from the surface (the lower surface in this embodiment) opposite to the upper clamp member 2 across S. And the fastening member 4 which consists of the volt | bolt 4A and the nut 4B makes the clamping force for pinching | interposing the sleeper S act on the upper side clamp member 2 and the lower side clamp member 3. FIG.

1.2. Upper Clamp Member The upper clamp member 2 is an iron-based metal that comes into contact with the upper surface S1 (see FIG. 2B) of the sleeper S when the sleeper S is sandwiched as shown in FIGS. 3A and 3B. The upper clamp plate 2A is made of an end plate 2B in contact with the longitudinal end surface S3 of the sleeper S (see FIG. 2B), an upper connection box 2C into which a bolt 4A is inserted, and the like.

  The upper clamp plate 2A is configured as a strip extending in a horizontal direction (left and right direction in FIG. 3A) orthogonal to the longitudinal direction of the sleepers S. Side clamp plates 2D that come into contact with both ends of the sleeper S in the horizontal direction are provided.

  In the present embodiment, a pair of side surface clamp plates 2D are integrally formed with the upper clamp plate 2A by bending both longitudinal ends of the upper clamp plate 2A, and the end surface plate 2B is formed of the upper clamp plate 2A and the side surface clamp plate 2D. By welding to each other, a substantially box-like shape in which two surfaces (the left side and the lower side in FIG. 3B) are opened is configured.

  The upper connection box 2C includes an upper surface plate 2E, a lower surface plate 2F, a rear surface plate 2G, a side surface plate 2H, a ceiling plate 2J, and the like. The shape is configured.

  Incidentally, in the present embodiment, the back plate 2G and the side plate 2H are integrated by using a U-shaped steel material and the like, and the upper surface plate 2E made of an iron-based metal plate such as SPCC is integrated into the U-shaped steel material. And the lower surface plate 2F is welded to constitute the upper connection box 2C.

  The ceiling plate 2J is an iron-based metal plate welded to the upper ends of the back plate 2G and the side plate 2H so as to coincide with the upper surface of the upper clamp plate 2A (at the same height). Is provided with a hole 2K into which a tool (for example, a box wrench) used for tightening the bolt 4A can be inserted.

  The top plate 2E is welded to the back plate 2G and the side plate 2H at a position below the ceiling plate 2J, and is provided with a hole 2L into which the bolt 4A is inserted. The position of the top plate 2E is set to a position where the head 4C (see FIG. 2b) of the bolt 4A does not protrude from the top surface of the ceiling plate 2J when the bolt 4A is inserted into the hole 2L.

  On the other hand, the lower surface plate 2F is an iron-based metal plate welded to the lower ends of the rear surface plate 2G and the side surface plate 2H, and the lower surface plate 2F has a structure as shown in FIGS. 3 (a) and 3 (b). A hexagonal through hole 2M (hereinafter referred to as a fitting hole 2M) is provided which is substantially the same as the outer diameter of the nut 4B and into which the nut 4B can be fitted.

  That is, since the nut 4B is a so-called hexagonal high nut whose outer periphery is configured in a hexagonal shape, the fitting hole 2M has a two-face width dimension (see JIS B 1002 (1985), etc.) of the nut 4B. It is formed to have a dimension that is the same as or slightly larger than the surface width dimension (for example, a dimension that is approximately 0.5 mm to 2 mm larger than the two-surface width dimension of the nut 4B).

  Each of the pair of side plates 2H is provided with a plurality of connecting holes 2N into which connecting pins 31 (see FIG. 2A) for connecting the connecting arm 30 or the temporary placing table 40 are inserted. As shown in FIG. 2B, these connecting holes 2N are formed in series along the axial direction of the bolt 4A (in this embodiment, the vertical direction).

1.3. Lower Clamp Member As shown in FIG. 4A, the lower clamp member 3 includes a bone box portion 3C composed of a back plate 3A and a pair of side plates 3B, an upper end of the bone box portion 3C, that is, an upper clamp member 2 The upper plate 3D is welded to a portion facing the lower plate 2F, the nut 4B is welded to the upper plate 3D, and the lower clamp arm 3E is welded to each side plate 3B.

  In this embodiment, the back plate 3A and the pair of side plates 3B are formed and integrated with a U-shaped steel material, and the lower clamp arm 3E has a bone box portion as shown in FIG. It is formed in an arm shape protruding from 3C to the sleeper side (left side in FIG. 4B).

  As shown in FIG. 4A, the nut 4B according to the present embodiment is welded to the upper surface plate 3D while penetrating the upper surface plate 3D. However, the present embodiment is not limited to this. It is sufficient if there is at least a portion protruding from the upper surface plate 3D to the upper clamp member 2 side.

  That is, the nut 4B is rotationally displaced relative to the lower clamp member 3 in cooperation with the fitting hole 2M by fitting into the fitting hole 2M, as will be described later. Therefore, it is sufficient if there is at least a portion protruding from the upper surface plate 3D to the upper clamp member 2 side.

  Further, the end surface on the sleeper S side of the upper surface plate 3D is a plate of the end surface plate 2B when the upper clamp member 2 and the lower clamp member 3 are connected by bolts 4A as shown in FIG. 2 (b). It protrudes from the bone box portion 3C so as to be substantially flush with the surface.

  For this reason, in the state where the sleeper S is sandwiched by the clamp 1, the end surface plate 2B and the end surface plate 2B of the upper surface plate 3D come into contact with the end surface in the longitudinal direction of the sleeper S, whereby the position of the clamp 1 in the longitudinal direction of the sleeper S Is determined. On the other hand, the position of the clamp 1 in the horizontal direction orthogonal to the longitudinal direction of the sleepers S is determined by the pair of side surface clamp plates 2D contacting the side surfaces of the sleepers S.

2. Method of using clamp according to this embodiment and its features As shown in FIGS. 2 (a) and 2 (b), the sleeper S so that the upper clamp plate 2A of the upper clamp member 2 is in contact with the upper surface S1 of the sleeper S. In the state where the lower clamp arm 3E of the lower clamp member 3 is in contact with the lower surface of the sleeper S, the bolt 4A is fitted into the nut 4B and the bolt 4A is tightened. Go.

  At this time, since the fitting hole 2M of the upper clamp member 2 is fitted into the outer peripheral surface of the nut 4B like a spanner or a box wrench, even if the bolt 4A is tightened, the upper clamp member 2 Is restricted from being rotationally displaced relative to the lower clamp member 3.

  When the bolt 4A is tightened, an axial force is generated in the bolt 4A, and a force (clamping force) for sandwiching the sleeper S between the upper clamp member 2 and the lower clamp member 3 is generated. On the other hand, the clamp 1 is firmly clamped to the sleeper S without the positions of the upper clamp member 2 and the lower clamp member 3 being greatly displaced.

  At this time, for example, when the height dimension H of the sleeper S is large, as shown in FIGS. 5 (a) and 5 (b), the screwed length of the nut 4B and the bolt 4A (the length of the portion to be screwed) The difference in the height dimension H is absorbed by the change in the height (S).

  Moreover, in this embodiment, when the site | part in which the sleepers S, such as a roadbed, are embed | inclined, as shown to Fig.6 (a)-FIG.6 (c), the clamp 1 and the connection arm 30 or temporary. The inclination of the road bed can be absorbed by the rotation of the connecting portion with the pedestal 40 (the connecting pin 31 with respect to the connecting hole 2N).

  Moreover, in this embodiment, when the position (height) of the sleeper S and the temporary placing table 40 is different, as shown in FIG. 7A or 7B, the connecting arm 30 or the temporary placing table. By changing the connecting hole 2 </ b> N used for the connection with 40, the difference in the position (height) between the sleeper S and the temporary placing table 40 can be absorbed.

  Moreover, in this embodiment, the nut 4B comprised with the high nut functions as a fitting protrusion part which protrudes in the upper clamp member 2 side so that it may fit in the fitting hole 2M. Therefore, the rotation preventing means can be configured by using the nut 4B that generates the clamping force by connecting the upper clamp member 2 and the lower clamp member 3 without separately providing a structure dedicated to the rotation preventing means. .

  By the way, for example, as in the second embodiment (see FIG. 8), if a dedicated detent means is provided, the connection pin 31 and the detent means may approach or interfere with each other. Since it is necessary to make the whole 1 large, the size and weight of the clamp 1 are increased.

  On the other hand, in the present embodiment, even in the state where the upper clamp member 2 and the lower clamp member 3 are connected, only the bolt 4A and the nut 4B extending in the vertical direction in the horizontal central portion are present in the upper connection box 2C. Since there is a configuration that exists (see FIG. 2A), there is no possibility that the coupling pin 31 and the nut 4B that constitutes the anti-rotation means come close to or interfere with each other, and there is no increase in the size of the clamp 1 as a whole. The connection hole 2N can be provided in the upper connection box 2C.

  Therefore, since the connection position of the clamp 1 and the temporary placing table 40 or the connection arm 30 is not greatly limited, the same clamp 1 can cope with rails of different sizes and various sites. it can.

(Second Embodiment)
In the above-described embodiment, the detent means is configured by using a part (nut 4B) of the fastening member 4 that connects the upper clamp member 2 and the lower clamp member 3, but this embodiment is shown in FIG. As described above, a mechanism dedicated to the rotation prevention means is provided.

  That is, a plurality of fitting holes 2P are provided in the lower plate 2F facing the lower clamp member 3 of the upper clamp member 2, while each fitting is placed on the upper plate 3D of the lower clamp member 3 facing the lower plate 2F. A fitting protrusion 3F that protrudes toward the upper clamp member 2 is provided so as to fit in the fitting hole 2P.

  As a result, in this embodiment, the upper clamp member 2 is rotationally displaced relative to the lower clamp member 3 even when the bolt 4A is tightened while being able to cope with the sleepers S of various heights H. Can be regulated.

(Other embodiments)
Although the clamp 1 which concerns on the above-mentioned embodiment was a type which clamps the sleeper S from an up-down direction, this invention is not limited to this.

  In the clamp 1 according to the above-described embodiment, the bolt 4A is inserted into the upper clamp member 2, and the nut 4B is welded to the lower clamp member 3. However, the present invention is limited to this. Instead, for example, the bolt 4 </ b> A may be inserted into the lower clamp member 3 and the nut 4 </ b> B may be welded to the upper clamp member 2.

  Further, the present invention is not limited to the above-described embodiment as long as it matches the gist of the invention described in the claims.

DESCRIPTION OF SYMBOLS 1 ... Clamp, 2 ... Upper clamp member, 2A ... Upper clamp plate,
2B ... End plate, 2C ... Upper connection box, 2D ... Side clamp plate,
2E ... Upper plate, 2F ... Lower plate, 2G ... Back plate,
2H ... side plate, 2J ... ceiling plate, 2K ... hole, 2L ... hole, 2M ... fitting hole,
2N ... connecting hole, 3 ... lower clamp member, 3B ... side plate,
3C ... Bone box part, 3D ... Top plate, 3E ... Lower clamp arm,
4 ... fastening member, 4A ... bolt, 4B ... nut, 30 ... connecting arm, 31 ... connecting pin,
40 ... Temporary table.

Claims (2)

A temporary stand for temporarily placing a rail for a rail is a clamp for a temporary stand that is connected to the sleeper so as to sandwich the sleeper of the rail,
A first clamp member that contacts one surface of the sleeper;
A second clamp member that contacts the sleeper from a surface opposite to the first clamp member across the sleeper;
A bolt and a nut for connecting the first clamp member and the second clamp member and generating a clamping force for sandwiching the sleepers;
When the clamping force is to be generated in the bolt by rotating said bolt, and a detent means for said first clamping member is restricted from relative rotational displacement with respect to said second clamp member,
The detent means is
A fitting hole provided in a portion of the first clamp member facing the second clamp member, and provided in the second clamp member, on the first clamp member side so as to be fitted into the fitting hole. It has a protruding protrusion that protrudes ,
The bolt is rotatably inserted into a hole provided in the first clamp member,
The position of the top plate provided with the hole into which the bolt is inserted is the top surface of the ceiling plate where the head of the bolt is located at the upper end of the first clamp member when the bolt is inserted into the hole. Set to a position that does not protrude from
The nut has a polygonal outer periphery, and is joined to the second clamp member to constitute the fitting protrusion.
The fitting hole is temporary base clamp, wherein holes der Rukoto having at least two plane parallel to the plane of the outer circumferential surface of the nut. The temporary nut clamp according to claim 1 , wherein the nut is a high nut.

Images